fix(web/converse): Bare minimum changes to build in 2021 r/2443

This project depends on Tokio, via actix, and both of those are bad
ideas. This wasn't as clear 3 years ago as it is now, but to
demonstrate it the project has amassed issues which required at least
this minimum of changes to be buildable in 2021 (using a modern
rustc).

Yes, this adds dozens of new dependencies again (because of a
top-level update) but don't worry: They will be gone when I'm done
here.

Change-Id: I1dde9dc0325da7bdcb6608359fab33e27692dc1d
Reviewed-on: https://cl.tvl.fyi/c/depot/+/2857
Tested-by: BuildkiteCI
Reviewed-by: tazjin <mail@tazj.in>

7 files changed, 1840 insertions, 6568 deletions

diff --git a/web/converse/Cargo.lock b/web/converse/Cargo.lock
index 6cba76e131..67f3819e36 100644
--- a/web/converse/Cargo.lock
+++ b/web/converse/Cargo.lock
@@ -1,2407 +1,3076 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
 [[package]]
 name = "actix"
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-source = "registry+https://github.com/rust-lang/crates.io-index"
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+ "winapi 0.2.8",
+ "winapi-build",
+]
diff --git a/web/converse/Cargo.nix b/web/converse/Cargo.nix
deleted file mode 100644
index 5669afd226..0000000000
--- a/web/converse/Cargo.nix
+++ /dev/null
@@ -1,5384 +0,0 @@
-# Generated by carnix 0.7.2: carnix nix --src .
-{ lib, buildPlatform, buildRustCrate, fetchgit }:
-let kernel = buildPlatform.parsed.kernel.name;
-    abi = buildPlatform.parsed.abi.name;
-    include = includedFiles: src: builtins.filterSource (path: type:
-      lib.lists.any (f:
-        let p = toString (src + ("/" + f)); in
-        (path == p) || (type == "directory" && lib.strings.hasPrefix path p)
-      ) includedFiles
-    ) src;
-    updateFeatures = f: up: functions: builtins.deepSeq f (lib.lists.foldl' (features: fun: fun features) (lib.attrsets.recursiveUpdate f up) functions);
-    mapFeatures = features: map (fun: fun { features = features; });
-    mkFeatures = feat: lib.lists.foldl (features: featureName:
-      if feat.${featureName} or false then
-        [ featureName ] ++ features
-      else
-        features
-    ) [] (builtins.attrNames feat);
-in
-rec {
-  converse = f: converse_0_1_0 { features = converse_0_1_0_features { converse_0_1_0 = f; }; };
-  __all = [ (converse {}) ];
-  actix_0_5_7_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "actix";
-    version = "0.5.7";
-    authors = [ "Nikolay Kim <fafhrd91@gmail.com>" ];
-    sha256 = "0vvx1r6z66fmpgaq2mhlcjf1p7kg0zzl3q05y6cp9jx53xdal4zz";
-    libPath = "src/lib.rs";
-    build = "build.rs";
-    inherit dependencies buildDependencies features;
-  };
-  actix_web_0_6_9_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "actix-web";
-    version = "0.6.9";
-    authors = [ "Nikolay Kim <fafhrd91@gmail.com>" ];
-    sha256 = "11wgyc5ydd47h6zdbcz3swq5qpb020v6j8davswv3fxy0274rqly";
-    libPath = "src/lib.rs";
-    libName = "actix_web";
-    build = "build.rs";
-    inherit dependencies buildDependencies features;
-  };
-  actix_derive_0_2_0_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "actix_derive";
-    version = "0.2.0";
-    authors = [ "Callym <hi@callym.com>" "Nikolay Kim <fafhrd91@gmail.com>" ];
-    sha256 = "0mh7wmw4kb8vy6pqzhis2y4qqfdz86c1zn4ns4knmvq3rqcjgqpa";
-    procMacro = true;
-    build = "build.rs";
-    inherit dependencies buildDependencies features;
-  };
-  adler32_1_0_2_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "adler32";
-    version = "1.0.2";
-    authors = [ "Remi Rampin <remirampin@gmail.com>" ];
-    sha256 = "1974q3nysai026zhz24df506cxwi09jdzqksll4h7ibpb5n9g1d4";
-    inherit dependencies buildDependencies features;
-  };
-  aho_corasick_0_6_4_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "aho-corasick";
-    version = "0.6.4";
-    authors = [ "Andrew Gallant <jamslam@gmail.com>" ];
-    sha256 = "189v919mp6rzzgjp1khpn4zlq8ls81gh43x1lmc8kbkagdlpq888";
-    libName = "aho_corasick";
-    crateBin = [ {  name = "aho-corasick-dot"; } ];
-    inherit dependencies buildDependencies features;
-  };
-  ansi_term_0_11_0_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "ansi_term";
-    version = "0.11.0";
-    authors = [ "ogham@bsago.me" "Ryan Scheel (Havvy) <ryan.havvy@gmail.com>" "Josh Triplett <josh@joshtriplett.org>" ];
-    sha256 = "08fk0p2xvkqpmz3zlrwnf6l8sj2vngw464rvzspzp31sbgxbwm4v";
-    inherit dependencies buildDependencies features;
-  };
-  antidote_1_0_0_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "antidote";
-    version = "1.0.0";
-    authors = [ "Steven Fackler <sfackler@gmail.com>" ];
-    sha256 = "1x2wgaw603jcjwsfvc8s2rpaqjv0aqj8mvws2ahhkvfnwkdf7icw";
-    inherit dependencies buildDependencies features;
-  };
-  arrayvec_0_4_7_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "arrayvec";
-    version = "0.4.7";
-    authors = [ "bluss" ];
-    sha256 = "0fzgv7z1x1qnyd7j32vdcadk4k9wfx897y06mr3bw1yi52iqf4z4";
-    inherit dependencies buildDependencies features;
-  };
-  askama_0_6_4_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "askama";
-    version = "0.6.4";
-    authors = [ "Dirkjan Ochtman <dirkjan@ochtman.nl>" ];
-    sha256 = "1l4wr3zj0ihmx5nh19aksngs684iqzg13hfxbxcf4ldwkfbq98g6";
-    inherit dependencies buildDependencies features;
-  };
-  askama_derive_0_6_4_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "askama_derive";
-    version = "0.6.4";
-    authors = [ "Dirkjan Ochtman <dirkjan@ochtman.nl>" ];
-    sha256 = "0k7vy1bj5lkv2hmrl11iajiv6rp2kilfhancilrifn8kf1788hwj";
-    procMacro = true;
-    inherit dependencies buildDependencies features;
-  };
-  askama_shared_0_6_2_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "askama_shared";
-    version = "0.6.2";
-    authors = [ "Dirkjan Ochtman <dirkjan@ochtman.nl>" ];
-    sha256 = "1l8hhhs6rjsfdsvlzw7a3jh8a830i4ixzvcmr9d2xfp5097akd4j";
-    inherit dependencies buildDependencies features;
-  };
-  atty_0_2_10_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "atty";
-    version = "0.2.10";
-    authors = [ "softprops <d.tangren@gmail.com>" ];
-    sha256 = "1h26lssj8rwaz0xhwwm5a645r49yly211amfmd243m3m0jl49i2c";
-    inherit dependencies buildDependencies features;
-  };
-  backtrace_0_2_3_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "backtrace";
-    version = "0.2.3";
-    authors = [ "Alex Crichton <alex@alexcrichton.com>" "The Rust Project Developers" ];
-    sha256 = "12bv0zibls8wckz082jnky2ixykhixc7f72n652nd7l3ljlmkzim";
-    build = "build.rs";
-    inherit dependencies buildDependencies features;
-  };
-  backtrace_0_3_7_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "backtrace";
-    version = "0.3.7";
-    authors = [ "Alex Crichton <alex@alexcrichton.com>" "The Rust Project Developers" ];
-    sha256 = "00zzcgacv516dlhxkrdw4c8vsx3bwkkdrrzi5pnxrhpd87ambjwn";
-    inherit dependencies buildDependencies features;
-  };
-  backtrace_sys_0_1_16_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "backtrace-sys";
-    version = "0.1.16";
-    authors = [ "Alex Crichton <alex@alexcrichton.com>" ];
-    sha256 = "1cn2c8q3dn06crmnk0p62czkngam4l8nf57wy33nz1y5g25pszwy";
-    build = "build.rs";
-    inherit dependencies buildDependencies features;
-  };
-  base64_0_6_0_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "base64";
-    version = "0.6.0";
-    authors = [ "Alice Maz <alice@alicemaz.com>" "Marshall Pierce <marshall@mpierce.org>" ];
-    sha256 = "0ql1rmczbnww3iszc0pfc6mqa47ravpsdf525vp6s8r32nyzspl5";
-    inherit dependencies buildDependencies features;
-  };
-  base64_0_9_1_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "base64";
-    version = "0.9.1";
-    authors = [ "Alice Maz <alice@alicemaz.com>" "Marshall Pierce <marshall@mpierce.org>" ];
-    sha256 = "0fnsgkhn6aqbvvgbpcyzy1dbx840g0x5rvxdf82c5pv23knl0j0a";
-    inherit dependencies buildDependencies features;
-  };
-  bitflags_0_9_1_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "bitflags";
-    version = "0.9.1";
-    authors = [ "The Rust Project Developers" ];
-    sha256 = "18h073l5jd88rx4qdr95fjddr9rk79pb1aqnshzdnw16cfmb9rws";
-    inherit dependencies buildDependencies features;
-  };
-  bitflags_1_0_3_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "bitflags";
-    version = "1.0.3";
-    authors = [ "The Rust Project Developers" ];
-    sha256 = "162p4w4h1ad76awq6b5yivmls3d50m9cl27d8g588lsps6g8s5rw";
-    inherit dependencies buildDependencies features;
-  };
-  brotli_sys_0_3_2_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "brotli-sys";
-    version = "0.3.2";
-    authors = [ "Alex Crichton <alex@alexcrichton.com>" ];
-    sha256 = "0b68xckd06a5gvdykimgr5f0f2whrhj0lwqq6scy0viaargqkdnl";
-    build = "build.rs";
-    inherit dependencies buildDependencies features;
-  };
-  brotli2_0_3_2_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "brotli2";
-    version = "0.3.2";
-    authors = [ "Alex Crichton <alex@alexcrichton.com>" ];
-    sha256 = "1daqrhn50rr8k03h7dd2zkjc0qn2c45q6hrmi642fnz0y5rfwm5y";
-    inherit dependencies buildDependencies features;
-  };
-  build_const_0_2_1_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "build_const";
-    version = "0.2.1";
-    authors = [ "Garrett Berg <vitiral@gmail.com>" ];
-    sha256 = "15249xzi3qlm72p4glxgavwyq70fx2sp4df6ii0sdlrixrrp77pl";
-    inherit dependencies buildDependencies features;
-  };
-  bytecount_0_3_1_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "bytecount";
-    version = "0.3.1";
-    authors = [ "Andre Bogus <bogusandre@gmail.de>" "Joshua Landau <joshua@landau.ws>" ];
-    sha256 = "09l2hly8vyg1rk4aafg29lif9r6lyrrryz799nxf85cjrzjphgw9";
-    inherit dependencies buildDependencies features;
-  };
-  byteorder_1_2_3_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "byteorder";
-    version = "1.2.3";
-    authors = [ "Andrew Gallant <jamslam@gmail.com>" ];
-    sha256 = "1xghv5f5rydzsam8lnfqhfk090i8a1knb77ikbs0ik44bvrw2ij3";
-    inherit dependencies buildDependencies features;
-  };
-  bytes_0_4_7_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "bytes";
-    version = "0.4.7";
-    authors = [ "Carl Lerche <me@carllerche.com>" ];
-    sha256 = "1icr74r099d0c0a2q1pz51182z7911g92h2j60al351kz78dzv3f";
-    inherit dependencies buildDependencies features;
-  };
-  cargo_metadata_0_5_4_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "cargo_metadata";
-    version = "0.5.4";
-    authors = [ "Oliver Schneider <git-spam-no-reply9815368754983@oli-obk.de>" ];
-    sha256 = "0g45nw8kb2yi78g97y6rf0phxd91ny12gs5qy89jwivaqcpc5gyd";
-    inherit dependencies buildDependencies features;
-  };
-  cc_1_0_15_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "cc";
-    version = "1.0.15";
-    authors = [ "Alex Crichton <alex@alexcrichton.com>" ];
-    sha256 = "1zmcv4zf888byhay2qakqlc9b8snhy5ccfs35zb6flywmlj8f2c0";
-    inherit dependencies buildDependencies features;
-  };
-  cfg_if_0_1_3_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "cfg-if";
-    version = "0.1.3";
-    authors = [ "Alex Crichton <alex@alexcrichton.com>" ];
-    sha256 = "0hphfz5qg40gr5p18gmgy2rzkqj019lii3n0dy3s0a6lnl9106k6";
-    inherit dependencies buildDependencies features;
-  };
-  chrono_0_4_2_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "chrono";
-    version = "0.4.2";
-    authors = [ "Kang Seonghoon <public+rust@mearie.org>" "Brandon W Maister <quodlibetor@gmail.com>" ];
-    sha256 = "1zp63v1g56kfjnazmqg8s4gb66l0ra8ggn3gzqbf9sr8d5lnfzak";
-    inherit dependencies buildDependencies features;
-  };
-  clap_2_31_2_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "clap";
-    version = "2.31.2";
-    authors = [ "Kevin K. <kbknapp@gmail.com>" ];
-    sha256 = "0r24ziw85a8y1sf2l21y4mvv5qan3rjafcshpyfsjfadqfxsij72";
-    inherit dependencies buildDependencies features;
-  };
-  comrak_0_2_12_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "comrak";
-    version = "0.2.12";
-    authors = [ "Ashe Connor <kivikakk@github.com>" ];
-    sha256 = "14n2xpvlncy36ycf53iv26wszv8nd59br5sjlc0b29qjajfa34z4";
-    crateBin = [ {  name = "comrak"; } ];
-    inherit dependencies buildDependencies features;
-  };
-  converse_0_1_0_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "converse";
-    version = "0.1.0";
-    authors = [ "Vincent Ambo <mail@tazj.in>" ];
-    src = ./.;
-    inherit dependencies buildDependencies features;
-  };
-  cookie_0_10_1_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "cookie";
-    version = "0.10.1";
-    authors = [ "Alex Crichton <alex@alexcrichton.com>" "Sergio Benitez <sb@sergio.bz>" ];
-    sha256 = "0sipihjzmipb13i2hzlvzsyljj00cjs7vx1ymslxr9m6kl2y0qpq";
-    inherit dependencies buildDependencies features;
-  };
-  core_foundation_0_2_3_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "core-foundation";
-    version = "0.2.3";
-    authors = [ "The Servo Project Developers" ];
-    sha256 = "1g0vpya5h2wa0nlz4a74jar6y8z09f0p76zbzfqrm3dbfsrld1pm";
-    inherit dependencies buildDependencies features;
-  };
-  core_foundation_sys_0_2_3_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "core-foundation-sys";
-    version = "0.2.3";
-    authors = [ "The Servo Project Developers" ];
-    sha256 = "19s0d03294m9s5j8cvy345db3gkhs2y02j5268ap0c6ky5apl53s";
-    build = "build.rs";
-    inherit dependencies buildDependencies features;
-  };
-  crc_1_8_1_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "crc";
-    version = "1.8.1";
-    authors = [ "Rui Hu <code@mrhooray.com>" ];
-    sha256 = "00m9jjqrddp3bqyanvyxv0hf6s56bx1wy51vcdcxg4n2jdhg109s";
-    inherit dependencies buildDependencies features;
-  };
-  crossbeam_channel_0_1_2_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "crossbeam-channel";
-    version = "0.1.2";
-    authors = [ "The Crossbeam Project Developers" ];
-    sha256 = "008xqz8w58sl43fmwpqqf08lp33sjq9gnmbgzw04l6ry7kidwm56";
-    inherit dependencies buildDependencies features;
-  };
-  crossbeam_deque_0_2_0_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "crossbeam-deque";
-    version = "0.2.0";
-    authors = [ "The Crossbeam Project Developers" ];
-    sha256 = "1h3n1p1qy45b6388j3svfy1m72xlcx9j9a5y0mww6jz8fmknipnb";
-    inherit dependencies buildDependencies features;
-  };
-  crossbeam_deque_0_3_1_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "crossbeam-deque";
-    version = "0.3.1";
-    authors = [ "The Crossbeam Project Developers" ];
-    sha256 = "1km0mavyp9ddwb7k7kcdmyryi3bwxf0nmr6jqcpyjzvzmxjlkqap";
-    inherit dependencies buildDependencies features;
-  };
-  crossbeam_epoch_0_2_0_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "crossbeam-epoch";
-    version = "0.2.0";
-    authors = [ "The Crossbeam Project Developers" ];
-    sha256 = "05hyrrbmz64z0gz6n9h6jmx7swnhika90h96fcyd83psjwpkap88";
-    inherit dependencies buildDependencies features;
-  };
-  crossbeam_epoch_0_3_1_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "crossbeam-epoch";
-    version = "0.3.1";
-    authors = [ "The Crossbeam Project Developers" ];
-    sha256 = "1ljrrpvalabi3r2nnpcz7rqkbl2ydmd0mrrr2fv335f7d46xgfxa";
-    inherit dependencies buildDependencies features;
-  };
-  crossbeam_epoch_0_4_1_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "crossbeam-epoch";
-    version = "0.4.1";
-    authors = [ "The Crossbeam Project Developers" ];
-    sha256 = "134565vkm0h14bk8c3bw0f7n8zzhwl6zi8127zvpa8iglchafn0a";
-    inherit dependencies buildDependencies features;
-  };
-  crossbeam_utils_0_2_2_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "crossbeam-utils";
-    version = "0.2.2";
-    authors = [ "The Crossbeam Project Developers" ];
-    sha256 = "0jiwzxv0lysjq68yk4bzkygrf69zhdidyw55nxlmimxlm6xv0j4m";
-    inherit dependencies buildDependencies features;
-  };
-  crossbeam_utils_0_3_2_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "crossbeam-utils";
-    version = "0.3.2";
-    authors = [ "The Crossbeam Project Developers" ];
-    sha256 = "1byx31nkxl48la58571h40ssk94faky26jwz15w40v2gba3v4fql";
-    inherit dependencies buildDependencies features;
-  };
-  dbghelp_sys_0_2_0_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "dbghelp-sys";
-    version = "0.2.0";
-    authors = [ "Peter Atashian <retep998@gmail.com>" ];
-    sha256 = "0ylpi3bbiy233m57hnisn1df1v0lbl7nsxn34b0anzsgg440hqpq";
-    libName = "dbghelp";
-    build = "build.rs";
-    inherit dependencies buildDependencies features;
-  };
-  diesel_1_2_2_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "diesel";
-    version = "1.2.2";
-    authors = [ "Sean Griffin <sean@seantheprogrammer.com>" ];
-    sha256 = "0bcy779ndq9l2l2vh3a7h1s1s2cw67365vkx4zhxdq22wyb8z90w";
-    inherit dependencies buildDependencies features;
-  };
-  diesel_derives_1_2_0_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "diesel_derives";
-    version = "1.2.0";
-    authors = [ "Sean Griffin <sean@seantheprogrammer.com>" ];
-    sha256 = "0ykq7c77zsdsak0r8d384nnca9fglhih6jq66d0b9sws8vjvn4m1";
-    procMacro = true;
-    inherit dependencies buildDependencies features;
-  };
-  dtoa_0_4_2_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "dtoa";
-    version = "0.4.2";
-    authors = [ "David Tolnay <dtolnay@gmail.com>" ];
-    sha256 = "1bxsh6fags7nr36vlz07ik2a1rzyipc8x1y30kjk832hf2pzadmw";
-    inherit dependencies buildDependencies features;
-  };
-  encoding_0_2_33_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "encoding";
-    version = "0.2.33";
-    authors = [ "Kang Seonghoon <public+rust@mearie.org>" ];
-    sha256 = "16ls6avhv5ll28zajl5q1jbiz1g80c4ygnw13zzqmij14wsp5329";
-    inherit dependencies buildDependencies features;
-  };
-  encoding_index_japanese_1_20141219_5_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "encoding-index-japanese";
-    version = "1.20141219.5";
-    authors = [ "Kang Seonghoon <public+rust@mearie.org>" ];
-    sha256 = "1pmfaabps0x6v6cd4fbk9ssykhkmc799dma2y78fhk7gvyr5gyl4";
-    libPath = "lib.rs";
-    libName = "encoding_index_japanese";
-    inherit dependencies buildDependencies features;
-  };
-  encoding_index_korean_1_20141219_5_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "encoding-index-korean";
-    version = "1.20141219.5";
-    authors = [ "Kang Seonghoon <public+rust@mearie.org>" ];
-    sha256 = "1b756n7gcilkx07y7zjrikcg0b8v8yd6mw8w01ji8sp3k1cabcf2";
-    libPath = "lib.rs";
-    libName = "encoding_index_korean";
-    inherit dependencies buildDependencies features;
-  };
-  encoding_index_simpchinese_1_20141219_5_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "encoding-index-simpchinese";
-    version = "1.20141219.5";
-    authors = [ "Kang Seonghoon <public+rust@mearie.org>" ];
-    sha256 = "0rb4xd8cqymhqffqqxdk18mf9n354vs50ar66jrysb1z6ymcvvpy";
-    libPath = "lib.rs";
-    libName = "encoding_index_simpchinese";
-    inherit dependencies buildDependencies features;
-  };
-  encoding_index_singlebyte_1_20141219_5_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "encoding-index-singlebyte";
-    version = "1.20141219.5";
-    authors = [ "Kang Seonghoon <public+rust@mearie.org>" ];
-    sha256 = "07df3jrfwfmzi2s352lvcpvy5dqpy2s45d2xx2dz1x7zh3q5284d";
-    libPath = "lib.rs";
-    libName = "encoding_index_singlebyte";
-    inherit dependencies buildDependencies features;
-  };
-  encoding_index_tradchinese_1_20141219_5_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "encoding-index-tradchinese";
-    version = "1.20141219.5";
-    authors = [ "Kang Seonghoon <public+rust@mearie.org>" ];
-    sha256 = "0lb12nbv29cy41gx26yz3v4kfi8h1xbn1ppja8szgqi2zm1wlywn";
-    libPath = "lib.rs";
-    libName = "encoding_index_tradchinese";
-    inherit dependencies buildDependencies features;
-  };
-  encoding_index_tests_0_1_4_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "encoding_index_tests";
-    version = "0.1.4";
-    authors = [ "Kang Seonghoon <public+rust@mearie.org>" ];
-    sha256 = "0z09kwh4z76q00cfr081rgjbnai4s2maq2vk88lgrq9d6bkf93f6";
-    libPath = "index_tests.rs";
-    inherit dependencies buildDependencies features;
-  };
-  encoding_rs_0_7_2_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "encoding_rs";
-    version = "0.7.2";
-    authors = [ "Henri Sivonen <hsivonen@hsivonen.fi>" ];
-    sha256 = "1c23bi3q4qmi2ci8g7p5j4b4i5abyggvyg6hkl7w4p4r527c9g3q";
-    inherit dependencies buildDependencies features;
-  };
-  entities_1_0_1_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "entities";
-    version = "1.0.1";
-    authors = [ "Philip Jackson <p-jackson@live.com>" ];
-    sha256 = "1wvhgyl5mbbh3psw7c5w3mli6h87bk78aqap49mhp0654k87zw5g";
-    inherit dependencies buildDependencies features;
-  };
-  env_logger_0_5_10_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "env_logger";
-    version = "0.5.10";
-    authors = [ "The Rust Project Developers" ];
-    sha256 = "0any21l2x4h4h4ggc6r69k14i57pzqrm1pf89vfm3faxfpa23nhk";
-    inherit dependencies buildDependencies features;
-  };
-  error_chain_0_1_12_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "error-chain";
-    version = "0.1.12";
-    authors = [ "Brian Anderson <banderson@mozilla.com>" "Paul Colomiets <paul@colomiets.name>" "Colin Kiegel <kiegel@gmx.de>" ];
-    sha256 = "0pc1b8zbmim3qhlb0wfpxbvjhpq411rs0l9jzxplyr7j0b0wgbg1";
-    inherit dependencies buildDependencies features;
-  };
-  error_chain_0_8_1_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "error-chain";
-    version = "0.8.1";
-    authors = [ "Brian Anderson <banderson@mozilla.com>" "Paul Colomiets <paul@colomiets.name>" "Colin Kiegel <kiegel@gmx.de>" "Yamakaky <yamakaky@yamaworld.fr>" ];
-    sha256 = "0jaipqr2l2v84raynz3bvb0vnzysk7515j3mnb9i7g1qqprg2waq";
-    inherit dependencies buildDependencies features;
-  };
-  error_chain_0_11_0_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "error-chain";
-    version = "0.11.0";
-    authors = [ "Brian Anderson <banderson@mozilla.com>" "Paul Colomiets <paul@colomiets.name>" "Colin Kiegel <kiegel@gmx.de>" "Yamakaky <yamakaky@yamaworld.fr>" ];
-    sha256 = "19nz17q6dzp0mx2jhh9qbj45gkvvgcl7zq9z2ai5a8ihbisfj6d7";
-    inherit dependencies buildDependencies features;
-  };
-  failure_0_1_1_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "failure";
-    version = "0.1.1";
-    authors = [ "Without Boats <boats@mozilla.com>" ];
-    sha256 = "0gf9cmkm9kc163sszgjksqp5pcgj689lnf2104nn4h4is18nhigk";
-    inherit dependencies buildDependencies features;
-  };
-  failure_derive_0_1_1_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "failure_derive";
-    version = "0.1.1";
-    authors = [ "Without Boats <woboats@gmail.com>" ];
-    sha256 = "1w895q4pbyx3rwnhgjwfcayk9ghbi166wc1c3553qh8zkbz52k8i";
-    procMacro = true;
-    inherit dependencies buildDependencies features;
-  };
-  flate2_1_0_1_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "flate2";
-    version = "1.0.1";
-    authors = [ "Alex Crichton <alex@alexcrichton.com>" ];
-    sha256 = "0hi1r0sz8ca750hq9ym6d3n99g6rmmm8m8hadz2v49pfh6jd6svc";
-    inherit dependencies buildDependencies features;
-  };
-  fnv_1_0_6_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "fnv";
-    version = "1.0.6";
-    authors = [ "Alex Crichton <alex@alexcrichton.com>" ];
-    sha256 = "128mlh23y3gg6ag5h8iiqlcbl59smisdzraqy88ldrf75kbw27ip";
-    libPath = "lib.rs";
-    inherit dependencies buildDependencies features;
-  };
-  foreign_types_0_3_2_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "foreign-types";
-    version = "0.3.2";
-    authors = [ "Steven Fackler <sfackler@gmail.com>" ];
-    sha256 = "105n8sp2djb1s5lzrw04p7ss3dchr5qa3canmynx396nh3vwm2p8";
-    inherit dependencies buildDependencies features;
-  };
-  foreign_types_shared_0_1_1_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "foreign-types-shared";
-    version = "0.1.1";
-    authors = [ "Steven Fackler <sfackler@gmail.com>" ];
-    sha256 = "0b6cnvqbflws8dxywk4589vgbz80049lz4x1g9dfy4s1ppd3g4z5";
-    inherit dependencies buildDependencies features;
-  };
-  fuchsia_zircon_0_3_3_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "fuchsia-zircon";
-    version = "0.3.3";
-    authors = [ "Raph Levien <raph@google.com>" ];
-    sha256 = "0jrf4shb1699r4la8z358vri8318w4mdi6qzfqy30p2ymjlca4gk";
-    inherit dependencies buildDependencies features;
-  };
-  fuchsia_zircon_sys_0_3_3_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "fuchsia-zircon-sys";
-    version = "0.3.3";
-    authors = [ "Raph Levien <raph@google.com>" ];
-    sha256 = "08jp1zxrm9jbrr6l26bjal4dbm8bxfy57ickdgibsqxr1n9j3hf5";
-    inherit dependencies buildDependencies features;
-  };
-  futures_0_1_21_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "futures";
-    version = "0.1.21";
-    authors = [ "Alex Crichton <alex@alexcrichton.com>" ];
-    sha256 = "0v4xrgkqx189b3b4lad2z5l9ay261p9412bzcdh1z6agxwhldr40";
-    inherit dependencies buildDependencies features;
-  };
-  futures_cpupool_0_1_8_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "futures-cpupool";
-    version = "0.1.8";
-    authors = [ "Alex Crichton <alex@alexcrichton.com>" ];
-    sha256 = "0ficd31n5ljiixy6x0vjglhq4fp0v1p4qzxm3v6ymsrb3z080l5c";
-    inherit dependencies buildDependencies features;
-  };
-  gcc_0_3_54_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "gcc";
-    version = "0.3.54";
-    authors = [ "Alex Crichton <alex@alexcrichton.com>" ];
-    sha256 = "07a5i47r8achc6gxsba3ga17h9gnh4b9a2cak8vjg4hx62aajkr4";
-    inherit dependencies buildDependencies features;
-  };
-  getopts_0_2_17_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "getopts";
-    version = "0.2.17";
-    authors = [ "The Rust Project Developers" ];
-    sha256 = "1rifkxn7njr2w1dsa29hrm26ywgcg8gv1ms00g3vs5mjiabxk0jv";
-    inherit dependencies buildDependencies features;
-  };
-  glob_0_2_11_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "glob";
-    version = "0.2.11";
-    authors = [ "The Rust Project Developers" ];
-    sha256 = "104389jjxs8r2f5cc9p0axhjmndgln60ih5x4f00ccgg9d3zarlf";
-    inherit dependencies buildDependencies features;
-  };
-  h2_0_1_7_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "h2";
-    version = "0.1.7";
-    authors = [ "Carl Lerche <me@carllerche.com>" ];
-    sha256 = "03zn4gx31w1jgbf408dmg71c6hiy71vr9s017lxhyjydg6dfzkac";
-    inherit dependencies buildDependencies features;
-  };
-  hostname_0_1_4_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "hostname";
-    version = "0.1.4";
-    authors = [ "fengcen <fengcen.love@gmail.com>" ];
-    sha256 = "1wfz2afh9xjd5rdxgyrhvhl6z1vvdch5nnd7miw2pi3i90fw4r1h";
-    libPath = "src/lib.rs";
-    inherit dependencies buildDependencies features;
-  };
-  http_0_1_5_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "http";
-    version = "0.1.5";
-    authors = [ "Alex Crichton <alex@alexcrichton.com>" "Carl Lerche <me@carllerche.com>" "Sean McArthur <sean@seanmonstar.com>" ];
-    sha256 = "07p5q6h45r0hlnd6vg344iy72jk7xphzf6p38gb4fhb9iibnwn08";
-    inherit dependencies buildDependencies features;
-  };
-  http_range_0_1_1_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "http-range";
-    version = "0.1.1";
-    authors = [ "Luka Zakrajšek <luka@bancek.net>" ];
-    sha256 = "1zl43iw110ybbl9g24jhwylqbwgwm25vpv9m47sfwy2ajaqb7b3g";
-    inherit dependencies buildDependencies features;
-  };
-  httparse_1_2_4_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "httparse";
-    version = "1.2.4";
-    authors = [ "Sean McArthur <sean@seanmonstar.com>" ];
-    sha256 = "169grgxpsq0jaa2fk913z692a6qi8c2n1kypsay124b37720d8ll";
-    inherit dependencies buildDependencies features;
-  };
-  humantime_1_1_1_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "humantime";
-    version = "1.1.1";
-    authors = [ "Paul Colomiets <paul@colomiets.name>" ];
-    sha256 = "1lzdfsfzdikcp1qb6wcdvnsdv16pmzr7p7cv171vnbnyz2lrwbgn";
-    libPath = "src/lib.rs";
-    inherit dependencies buildDependencies features;
-  };
-  hyper_0_11_27_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "hyper";
-    version = "0.11.27";
-    authors = [ "Sean McArthur <sean@seanmonstar.com>" ];
-    sha256 = "0q5as4lhvh31bzk4qm7j84snrmxyxyaqk040rfk72b42dn98mryi";
-    inherit dependencies buildDependencies features;
-  };
-  hyper_tls_0_1_3_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "hyper-tls";
-    version = "0.1.3";
-    authors = [ "Sean McArthur <sean.monstar@gmail.com>" ];
-    sha256 = "1dr5arj79pdyz9f2jggqmna1qpc578f9pdgsf2ana5amjpsp0j89";
-    inherit dependencies buildDependencies features;
-  };
-  idna_0_1_4_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "idna";
-    version = "0.1.4";
-    authors = [ "The rust-url developers" ];
-    sha256 = "15j44qgjx1skwg9i7f4cm36ni4n99b1ayx23yxx7axxcw8vjf336";
-    inherit dependencies buildDependencies features;
-  };
-  indexmap_1_0_1_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "indexmap";
-    version = "1.0.1";
-    authors = [ "bluss" "Josh Stone <cuviper@gmail.com>" ];
-    sha256 = "10ak26zp3i5iyb03l99312q66jl20qs45cm5jnghm9ymdhspw3r4";
-    inherit dependencies buildDependencies features;
-  };
-  iovec_0_1_2_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "iovec";
-    version = "0.1.2";
-    authors = [ "Carl Lerche <me@carllerche.com>" ];
-    sha256 = "0vjymmb7wj4v4kza5jjn48fcdb85j3k37y7msjl3ifz0p9yiyp2r";
-    inherit dependencies buildDependencies features;
-  };
-  ipconfig_0_1_6_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "ipconfig";
-    version = "0.1.6";
-    authors = [ "Liran Ringel <liranringel@gmail.com>" ];
-    sha256 = "1jax0paxr9m2qfmc5l386d65m2g2wyzy077wzmbryv14d6dncfp8";
-    inherit dependencies buildDependencies features;
-  };
-  itoa_0_4_1_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "itoa";
-    version = "0.4.1";
-    authors = [ "David Tolnay <dtolnay@gmail.com>" ];
-    sha256 = "1jyrsmrm5q4r2ipmq5hvvkqg0mgnlbk44lm7gr0v9ymvbrh2gbij";
-    inherit dependencies buildDependencies features;
-  };
-  kernel32_sys_0_2_2_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "kernel32-sys";
-    version = "0.2.2";
-    authors = [ "Peter Atashian <retep998@gmail.com>" ];
-    sha256 = "1lrw1hbinyvr6cp28g60z97w32w8vsk6pahk64pmrv2fmby8srfj";
-    libName = "kernel32";
-    build = "build.rs";
-    inherit dependencies buildDependencies features;
-  };
-  language_tags_0_2_2_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "language-tags";
-    version = "0.2.2";
-    authors = [ "Pyfisch <pyfisch@gmail.com>" ];
-    sha256 = "1zkrdzsqzzc7509kd7nngdwrp461glm2g09kqpzaqksp82frjdvy";
-    inherit dependencies buildDependencies features;
-  };
-  lazy_static_0_2_11_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "lazy_static";
-    version = "0.2.11";
-    authors = [ "Marvin Löbel <loebel.marvin@gmail.com>" ];
-    sha256 = "1x6871cvpy5b96yv4c7jvpq316fp5d4609s9py7qk6cd6x9k34vm";
-    inherit dependencies buildDependencies features;
-  };
-  lazy_static_1_0_0_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "lazy_static";
-    version = "1.0.0";
-    authors = [ "Marvin Löbel <loebel.marvin@gmail.com>" ];
-    sha256 = "0wfvqyr2nvx2mbsrscg5y7gfa9skhb8p72ayanl8vl49pw24v4fh";
-    inherit dependencies buildDependencies features;
-  };
-  lazycell_0_6_0_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "lazycell";
-    version = "0.6.0";
-    authors = [ "Alex Crichton <alex@alexcrichton.com>" "Nikita Pekin <contact@nikitapek.in>" ];
-    sha256 = "1ax148clinbvp6alxcih8s5i2bg3mc5mi69n3hvzvzbwlm6k532r";
-    inherit dependencies buildDependencies features;
-  };
-  libc_0_2_41_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "libc";
-    version = "0.2.41";
-    authors = [ "The Rust Project Developers" ];
-    sha256 = "00fj3gi8x3zvslbnisw8xfgmid3k6nvgjg8i0lly50cf3l8x0s00";
-    inherit dependencies buildDependencies features;
-  };
-  libflate_0_1_14_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "libflate";
-    version = "0.1.14";
-    authors = [ "Takeru Ohta <phjgt308@gmail.com>" ];
-    sha256 = "03zq769bfffg3iyp2vkkjsmkskabrxiyh5khzppyyngm8w9xpdsc";
-    inherit dependencies buildDependencies features;
-  };
-  linked_hash_map_0_4_2_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "linked-hash-map";
-    version = "0.4.2";
-    authors = [ "Stepan Koltsov <stepan.koltsov@gmail.com>" "Andrew Paseltiner <apaseltiner@gmail.com>" ];
-    sha256 = "04da208h6jb69f46j37jnvsw2i1wqplglp4d61csqcrhh83avbgl";
-    inherit dependencies buildDependencies features;
-  };
-  log_0_3_9_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "log";
-    version = "0.3.9";
-    authors = [ "The Rust Project Developers" ];
-    sha256 = "19i9pwp7lhaqgzangcpw00kc3zsgcqcx84crv07xgz3v7d3kvfa2";
-    inherit dependencies buildDependencies features;
-  };
-  log_0_4_1_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "log";
-    version = "0.4.1";
-    authors = [ "The Rust Project Developers" ];
-    sha256 = "01vm8yy3wngvyj6qp1x3xpcb4xq7v67yn9l7fsma8kz28mliz90d";
-    inherit dependencies buildDependencies features;
-  };
-  lru_cache_0_1_1_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "lru-cache";
-    version = "0.1.1";
-    authors = [ "Stepan Koltsov <stepan.koltsov@gmail.com>" ];
-    sha256 = "1hl6kii1g54sq649gnscv858mmw7a02xj081l4vcgvrswdi2z8fw";
-    inherit dependencies buildDependencies features;
-  };
-  matches_0_1_6_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "matches";
-    version = "0.1.6";
-    authors = [ "Simon Sapin <simon.sapin@exyr.org>" ];
-    sha256 = "1zlrqlbvzxdil8z8ial2ihvxjwvlvg3g8dr0lcdpsjclkclasjan";
-    libPath = "lib.rs";
-    inherit dependencies buildDependencies features;
-  };
-  md5_0_3_7_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "md5";
-    version = "0.3.7";
-    authors = [ "Ivan Ukhov <ivan.ukhov@gmail.com>" "Kamal Ahmad <shibe@openmailbox.org>" "Konstantin Stepanov <milezv@gmail.com>" "Lukas Kalbertodt <lukas.kalbertodt@gmail.com>" "Nathan Musoke <nathan.musoke@gmail.com>" "Tony Arcieri <bascule@gmail.com>" ];
-    sha256 = "1ga55k7asxln553m89ccka2hnp5gkvacxl98r3nmx4d9mzvwn352";
-    inherit dependencies buildDependencies features;
-  };
-  memchr_1_0_2_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "memchr";
-    version = "1.0.2";
-    authors = [ "Andrew Gallant <jamslam@gmail.com>" "bluss" ];
-    sha256 = "0dfb8ifl9nrc9kzgd5z91q6qg87sh285q1ih7xgrsglmqfav9lg7";
-    inherit dependencies buildDependencies features;
-  };
-  memchr_2_0_1_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "memchr";
-    version = "2.0.1";
-    authors = [ "Andrew Gallant <jamslam@gmail.com>" "bluss" ];
-    sha256 = "0ls2y47rjwapjdax6bp974gdp06ggm1v8d1h69wyydmh1nhgm5gr";
-    inherit dependencies buildDependencies features;
-  };
-  memoffset_0_1_0_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "memoffset";
-    version = "0.1.0";
-    authors = [ "Gilad Naaman <gilad.naaman@gmail.com>" ];
-    sha256 = "1jq5vcfwqwxl709985srmsxs229da2hq3ab11fx3abbx1bpxcgx1";
-    inherit dependencies buildDependencies features;
-  };
-  memoffset_0_2_1_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "memoffset";
-    version = "0.2.1";
-    authors = [ "Gilad Naaman <gilad.naaman@gmail.com>" ];
-    sha256 = "00vym01jk9slibq2nsiilgffp7n6k52a4q3n4dqp0xf5kzxvffcf";
-    inherit dependencies buildDependencies features;
-  };
-  mime_0_3_7_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "mime";
-    version = "0.3.7";
-    authors = [ "Sean McArthur <sean@seanmonstar.com>" ];
-    sha256 = "1hvhza86jqrzwgin3mi08c6l8fqvxlpnwxj2yzv8zyxkqa70h9ax";
-    inherit dependencies buildDependencies features;
-  };
-  mime_guess_2_0_0_alpha_4_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "mime_guess";
-    version = "2.0.0-alpha.4";
-    authors = [ "Austin Bonander <austin.bonander@gmail.com>" ];
-    sha256 = "1kz8j1hb4azgyzcs6bnrrygv0ykjp170llri0is031q01vi7fgnh";
-    inherit dependencies buildDependencies features;
-  };
-  miniz_sys_0_1_10_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "miniz-sys";
-    version = "0.1.10";
-    authors = [ "Alex Crichton <alex@alexcrichton.com>" ];
-    sha256 = "11vg6phafxil87nbxgrlhcx5hjr3145wsbwwkfmibvnmzxfdmvln";
-    libPath = "lib.rs";
-    libName = "miniz_sys";
-    build = "build.rs";
-    inherit dependencies buildDependencies features;
-  };
-  mio_0_6_14_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "mio";
-    version = "0.6.14";
-    authors = [ "Carl Lerche <me@carllerche.com>" ];
-    sha256 = "0zws9p0d734qps4wdv47d32mmpb85caf9l2arwhxc7pslqk4icap";
-    inherit dependencies buildDependencies features;
-  };
-  mio_uds_0_6_6_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "mio-uds";
-    version = "0.6.6";
-    authors = [ "Alex Crichton <alex@alexcrichton.com>" ];
-    sha256 = "1428ywzd30ayagqmagmzslzi70d91mj402wp4mw1mz1yhvjrj9v8";
-    inherit dependencies buildDependencies features;
-  };
-  miow_0_2_1_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "miow";
-    version = "0.2.1";
-    authors = [ "Alex Crichton <alex@alexcrichton.com>" ];
-    sha256 = "14f8zkc6ix7mkyis1vsqnim8m29b6l55abkba3p2yz7j1ibcvrl0";
-    inherit dependencies buildDependencies features;
-  };
-  native_tls_0_1_5_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "native-tls";
-    version = "0.1.5";
-    authors = [ "Steven Fackler <sfackler@gmail.com>" ];
-    sha256 = "11f75qmbny5pnn6zp0vlvadrvc9ph9qsxiyn4n6q02xyd93pxxlf";
-    inherit dependencies buildDependencies features;
-  };
-  net2_0_2_32_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "net2";
-    version = "0.2.32";
-    authors = [ "Alex Crichton <alex@alexcrichton.com>" ];
-    sha256 = "15q3il71qaqrwz8q1nz0jyw5q4fl0vrkajgaj909zradxsxv1mcq";
-    inherit dependencies buildDependencies features;
-  };
-  nodrop_0_1_12_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "nodrop";
-    version = "0.1.12";
-    authors = [ "bluss" ];
-    sha256 = "1b9rxvdg8061gxjc239l9slndf0ds3m6fy2sf3gs8f9kknqgl49d";
-    inherit dependencies buildDependencies features;
-  };
-  nom_3_2_1_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "nom";
-    version = "3.2.1";
-    authors = [ "contact@geoffroycouprie.com" ];
-    sha256 = "1vcllxrz9hdw6j25kn020ka3psz1vkaqh1hm3yfak2240zrxgi07";
-    inherit dependencies buildDependencies features;
-  };
-  num_integer_0_1_38_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "num-integer";
-    version = "0.1.38";
-    authors = [ "The Rust Project Developers" ];
-    sha256 = "0xcyvsg43zrmaanf546l67mz816g5jigxi8818rx5y95xid722yy";
-    build = "build.rs";
-    inherit dependencies buildDependencies features;
-  };
-  num_traits_0_2_4_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "num-traits";
-    version = "0.2.4";
-    authors = [ "The Rust Project Developers" ];
-    sha256 = "0j0n4lcxbqq8q9v2qcyybz6aqxvmghzl5q2p19ds0c8fl5wviqmj";
-    build = "build.rs";
-    inherit dependencies buildDependencies features;
-  };
-  num_cpus_1_8_0_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "num_cpus";
-    version = "1.8.0";
-    authors = [ "Sean McArthur <sean@seanmonstar.com>" ];
-    sha256 = "1y6qnd9r8ga6y8mvlabdrr73nc8cshjjlzbvnanzyj9b8zzkfwk2";
-    inherit dependencies buildDependencies features;
-  };
-  openssl_0_9_24_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "openssl";
-    version = "0.9.24";
-    authors = [ "Steven Fackler <sfackler@gmail.com>" ];
-    sha256 = "0wzm3c11g3ndaqyzq36mcdcm1q4a8pmsyi33ibybhjz28g2z0f79";
-    build = "build.rs";
-    inherit dependencies buildDependencies features;
-  };
-  openssl_sys_0_9_31_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "openssl-sys";
-    version = "0.9.31";
-    authors = [ "Alex Crichton <alex@alexcrichton.com>" "Steven Fackler <sfackler@gmail.com>" ];
-    sha256 = "0jqc6ij157z4xfsdrcg4ska7v9i6dlxyl4lnl4di5v716vlxc40c";
-    build = "build/main.rs";
-    inherit dependencies buildDependencies features;
-  };
-  owning_ref_0_3_3_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "owning_ref";
-    version = "0.3.3";
-    authors = [ "Marvin Löbel <loebel.marvin@gmail.com>" ];
-    sha256 = "13ivn0ydc0hf957ix0f5si9nnplzzykbr70hni1qz9m19i9kvmrh";
-    inherit dependencies buildDependencies features;
-  };
-  parking_lot_0_4_8_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "parking_lot";
-    version = "0.4.8";
-    authors = [ "Amanieu d'Antras <amanieu@gmail.com>" ];
-    sha256 = "0qrb2f0azglbsx7k3skgnc7mmv9z9spnqgk1m450g91r94nlklqi";
-    inherit dependencies buildDependencies features;
-  };
-  parking_lot_core_0_2_14_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "parking_lot_core";
-    version = "0.2.14";
-    authors = [ "Amanieu d'Antras <amanieu@gmail.com>" ];
-    sha256 = "0giypb8ckkpi34p14nfk4b19c7przj4jxs95gs7x2v5ncmi0y286";
-    inherit dependencies buildDependencies features;
-  };
-  percent_encoding_1_0_1_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "percent-encoding";
-    version = "1.0.1";
-    authors = [ "The rust-url developers" ];
-    sha256 = "04ahrp7aw4ip7fmadb0bknybmkfav0kk0gw4ps3ydq5w6hr0ib5i";
-    libPath = "lib.rs";
-    inherit dependencies buildDependencies features;
-  };
-  pest_1_0_6_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "pest";
-    version = "1.0.6";
-    authors = [ "Dragoș Tiselice <dragostiselice@gmail.com>" ];
-    sha256 = "07r7aq8fni6ycjn3mlpam95pd4hlwylqqprv62ni488pjbkhcp5d";
-    inherit dependencies buildDependencies features;
-  };
-  pest_derive_1_0_7_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "pest_derive";
-    version = "1.0.7";
-    authors = [ "Dragoș Tiselice <dragostiselice@gmail.com>" ];
-    sha256 = "1jmw7ai3adwrp81ygs2l9i9fqm33b0m87j6rwcn3rvis4gg12kyc";
-    procMacro = true;
-    inherit dependencies buildDependencies features;
-  };
-  phf_0_7_22_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "phf";
-    version = "0.7.22";
-    authors = [ "Steven Fackler <sfackler@gmail.com>" ];
-    sha256 = "0b58l863rhmqyqsfj2d89nmdzc21g9yvvvq1m4c3a615zpcykb3i";
-    libPath = "src/lib.rs";
-    inherit dependencies buildDependencies features;
-  };
-  phf_codegen_0_7_22_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "phf_codegen";
-    version = "0.7.22";
-    authors = [ "Steven Fackler <sfackler@gmail.com>" ];
-    sha256 = "0k8yx4gr9m6cfrvh21s6bhnh1azz13j4xih88bvm06r6blfl89fs";
-    inherit dependencies buildDependencies features;
-  };
-  phf_generator_0_7_22_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "phf_generator";
-    version = "0.7.22";
-    authors = [ "Steven Fackler <sfackler@gmail.com>" ];
-    sha256 = "093gla320qb6rbk8z7wqqxl79zrh874sa7sxir31q2p7mrw4b70k";
-    inherit dependencies buildDependencies features;
-  };
-  phf_shared_0_7_22_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "phf_shared";
-    version = "0.7.22";
-    authors = [ "Steven Fackler <sfackler@gmail.com>" ];
-    sha256 = "0ij9flicfi0ab5vpzdwbizpdyxhk891qxa8nxsqlv4sg4abqang6";
-    libPath = "src/lib.rs";
-    inherit dependencies buildDependencies features;
-  };
-  pkg_config_0_3_11_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "pkg-config";
-    version = "0.3.11";
-    authors = [ "Alex Crichton <alex@alexcrichton.com>" ];
-    sha256 = "177kbs465skvzmb2d9bh7aa5lqm0npfig12awcbd34c6k6nlyr5h";
-    inherit dependencies buildDependencies features;
-  };
-  pq_sys_0_4_4_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "pq-sys";
-    version = "0.4.4";
-    authors = [ "Sean Griffin <sean@seantheprogrammer.com>" ];
-    sha256 = "1iqgs12mzx711ab1idiq4ryj27f8srwh83syj0ahvmbp5b8szggg";
-    libName = "pq_sys";
-    build = "build.rs";
-    inherit dependencies buildDependencies features;
-  };
-  proc_macro2_0_2_3_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "proc-macro2";
-    version = "0.2.3";
-    authors = [ "Alex Crichton <alex@alexcrichton.com>" ];
-    sha256 = "1y47qagi1r1f13b4b66xagr3dn9hjlvba7i6f5mcb77qhkn8yg9c";
-    inherit dependencies buildDependencies features;
-  };
-  proc_macro2_0_3_8_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "proc-macro2";
-    version = "0.3.8";
-    authors = [ "Alex Crichton <alex@alexcrichton.com>" ];
-    sha256 = "0ixnavxcd6sk1861hjgnfxly7qgq4ch1iplsx0nclvjjkwg39qdc";
-    inherit dependencies buildDependencies features;
-  };
-  proc_macro2_0_4_3_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "proc-macro2";
-    version = "0.4.3";
-    authors = [ "Alex Crichton <alex@alexcrichton.com>" ];
-    sha256 = "0p713czp1039fhrw5cp67hw4f5wg492fsqascfqib5rgmrdimgwz";
-    inherit dependencies buildDependencies features;
-  };
-  pulldown_cmark_0_1_2_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "pulldown-cmark";
-    version = "0.1.2";
-    authors = [ "Raph Levien <raph@google.com>" ];
-    sha256 = "0imc6m2bxk4j8y5qfp9x9sjnbrz7cz4i7irv4dfqjp4cgblmg5l8";
-    crateBin = [ {  name = "pulldown-cmark"; } ];
-    build = "build.rs";
-    inherit dependencies buildDependencies features;
-  };
-  quick_error_1_2_1_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "quick-error";
-    version = "1.2.1";
-    authors = [ "Paul Colomiets <paul@colomiets.name>" "Colin Kiegel <kiegel@gmx.de>" ];
-    sha256 = "0vq41csw68ynaq2fy5dvldh4lx7pnbw6pr332kv5rvrz4pz0jnq6";
-    inherit dependencies buildDependencies features;
-  };
-  quote_0_3_15_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "quote";
-    version = "0.3.15";
-    authors = [ "David Tolnay <dtolnay@gmail.com>" ];
-    sha256 = "09il61jv4kd1360spaj46qwyl21fv1qz18fsv2jra8wdnlgl5jsg";
-    inherit dependencies buildDependencies features;
-  };
-  quote_0_4_2_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "quote";
-    version = "0.4.2";
-    authors = [ "David Tolnay <dtolnay@gmail.com>" ];
-    sha256 = "0rzka356p113f9hdcdc8ha78qar3qd6jpap9wnf5dza9hfs2k4bc";
-    inherit dependencies buildDependencies features;
-  };
-  quote_0_5_2_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "quote";
-    version = "0.5.2";
-    authors = [ "David Tolnay <dtolnay@gmail.com>" ];
-    sha256 = "062cnp12j09x0z0nj4j5pfh26h35zlrks07asxgqhfhcym1ba595";
-    inherit dependencies buildDependencies features;
-  };
-  quote_0_6_2_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "quote";
-    version = "0.6.2";
-    authors = [ "David Tolnay <dtolnay@gmail.com>" ];
-    sha256 = "077sxhymzf5px0xp23mpjbmamrrjmhvavj8xrlrcj64md9wrci1s";
-    inherit dependencies buildDependencies features;
-  };
-  r2d2_0_8_2_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "r2d2";
-    version = "0.8.2";
-    authors = [ "Steven Fackler <sfackler@gmail.com>" ];
-    sha256 = "1m8cvw9gpc5r922alyha2qq9nl79q3ldsjk1qwax36zrca0akvdi";
-    inherit dependencies buildDependencies features;
-  };
-  rand_0_3_22_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "rand";
-    version = "0.3.22";
-    authors = [ "The Rust Project Developers" ];
-    sha256 = "0wrj12acx7l4hr7ag3nz8b50yhp8ancyq988bzmnnsxln67rsys0";
-    inherit dependencies buildDependencies features;
-  };
-  rand_0_4_2_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "rand";
-    version = "0.4.2";
-    authors = [ "The Rust Project Developers" ];
-    sha256 = "0h8pkg23wb67i8904sm76iyr1jlmhklb85vbpz9c9191a24xzkfm";
-    inherit dependencies buildDependencies features;
-  };
-  rayon_0_8_2_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "rayon";
-    version = "0.8.2";
-    authors = [ "Niko Matsakis <niko@alum.mit.edu>" "Josh Stone <cuviper@gmail.com>" ];
-    sha256 = "0d0mddg1k75hb9138pn8lysy2095jijrinskqbpgfr73s0jx6dq8";
-    inherit dependencies buildDependencies features;
-  };
-  rayon_core_1_4_0_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "rayon-core";
-    version = "1.4.0";
-    authors = [ "Niko Matsakis <niko@alum.mit.edu>" "Josh Stone <cuviper@gmail.com>" ];
-    sha256 = "1gmg5fmgvhzks7b05g3ms7x8h1xxqnfkg28wvhzwpdzjljcbnr23";
-    build = "build.rs";
-    inherit dependencies buildDependencies features;
-  };
-  redox_syscall_0_1_38_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "redox_syscall";
-    version = "0.1.38";
-    authors = [ "Jeremy Soller <jackpot51@gmail.com>" ];
-    sha256 = "09giwh6n37sya45g9b2k7svmm42xh8bfrnab3g51qwm1czfz5xbx";
-    libName = "syscall";
-    inherit dependencies buildDependencies features;
-  };
-  redox_termios_0_1_1_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "redox_termios";
-    version = "0.1.1";
-    authors = [ "Jeremy Soller <jackpot51@gmail.com>" ];
-    sha256 = "04s6yyzjca552hdaqlvqhp3vw0zqbc304md5czyd3axh56iry8wh";
-    libPath = "src/lib.rs";
-    inherit dependencies buildDependencies features;
-  };
-  regex_0_2_11_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "regex";
-    version = "0.2.11";
-    authors = [ "The Rust Project Developers" ];
-    sha256 = "0r50cymxdqp0fv1dxd22mjr6y32q450nwacd279p9s7lh0cafijj";
-    inherit dependencies buildDependencies features;
-  };
-  regex_1_0_0_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "regex";
-    version = "1.0.0";
-    authors = [ "The Rust Project Developers" ];
-    sha256 = "1wynl7jmf6l2fnsayw1bzfh7km4wwqnqfpi8anj7wbhdk17i6j6b";
-    inherit dependencies buildDependencies features;
-  };
-  regex_syntax_0_5_6_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "regex-syntax";
-    version = "0.5.6";
-    authors = [ "The Rust Project Developers" ];
-    sha256 = "10vf3r34bgjnbrnqd5aszn35bjvm8insw498l1vjy8zx5yms3427";
-    inherit dependencies buildDependencies features;
-  };
-  regex_syntax_0_6_0_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "regex-syntax";
-    version = "0.6.0";
-    authors = [ "The Rust Project Developers" ];
-    sha256 = "1zlaq3y1zbiqilxbh0471bizcs4p14b58nqr815w3ssyam169cy6";
-    inherit dependencies buildDependencies features;
-  };
-  relay_0_1_1_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "relay";
-    version = "0.1.1";
-    authors = [ "Sean McArthur <sean@seanmonstar.com>" ];
-    sha256 = "16csfaslbmj25iaxs88p8wcfh2zfpkh9isg9adid0nxjxvknh07r";
-    inherit dependencies buildDependencies features;
-  };
-  remove_dir_all_0_5_1_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "remove_dir_all";
-    version = "0.5.1";
-    authors = [ "Aaronepower <theaaronepower@gmail.com>" ];
-    sha256 = "1chx3yvfbj46xjz4bzsvps208l46hfbcy0sm98gpiya454n4rrl7";
-    inherit dependencies buildDependencies features;
-  };
-  reqwest_0_8_5_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "reqwest";
-    version = "0.8.5";
-    authors = [ "Sean McArthur <sean@seanmonstar.com>" ];
-    sha256 = "1wrrv3kwh0pm5yzajf986z21pyf48vxskvn7pflzhrm9y11kalnf";
-    inherit dependencies buildDependencies features;
-  };
-  resolv_conf_0_6_0_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "resolv-conf";
-    version = "0.6.0";
-    authors = [ "paul@colomiets.name" ];
-    sha256 = "11aslgks1zdwwx5nj6fmrnigyvphgk0chd8isz4zwb3pik1jjvc0";
-    libPath = "src/lib.rs";
-    libName = "resolv_conf";
-    inherit dependencies buildDependencies features;
-  };
-  ring_0_12_1_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "ring";
-    version = "0.12.1";
-    authors = [ "Brian Smith <brian@briansmith.org>" ];
-    sha256 = "1i47apwkpa0wz9fwp4iqf0xks95b9nmhhlgvk5fsgbg0aphhw0p7";
-    build = "build.rs";
-    inherit dependencies buildDependencies features;
-  };
-  rustc_demangle_0_1_8_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "rustc-demangle";
-    version = "0.1.8";
-    authors = [ "Alex Crichton <alex@alexcrichton.com>" ];
-    sha256 = "0xn5l86qfwngmdsjbglj30wh37zplvch96jl9raysl3k06gkkv3c";
-    inherit dependencies buildDependencies features;
-  };
-  safemem_0_2_0_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "safemem";
-    version = "0.2.0";
-    authors = [ "Austin Bonander <austin.bonander@gmail.com>" ];
-    sha256 = "058m251q202n479ip1h6s91yw3plg66vsk5mpaflssn6rs5hijdm";
-    inherit dependencies buildDependencies features;
-  };
-  same_file_1_0_2_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "same-file";
-    version = "1.0.2";
-    authors = [ "Andrew Gallant <jamslam@gmail.com>" ];
-    sha256 = "1xjj93345qz4dqk1qwlah98dkqrbfvrg7i3hcm3dkjygjqdid2h7";
-    inherit dependencies buildDependencies features;
-  };
-  schannel_0_1_12_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "schannel";
-    version = "0.1.12";
-    authors = [ "Steven Fackler <sfackler@gmail.com>" "Steffen Butzer <steffen.butzer@outlook.com>" ];
-    sha256 = "1lqdzx8d4rql8ah9w760syvrbbyp26s9cgidvrh34h0hjglja42d";
-    inherit dependencies buildDependencies features;
-  };
-  scheduled_thread_pool_0_2_0_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "scheduled-thread-pool";
-    version = "0.2.0";
-    authors = [ "Steven Fackler <sfackler@gmail.com>" ];
-    sha256 = "0x8jxh3l4irj5hm7rwfwmfd0iazcpvcfvnqbsngrrn3dmzpy0ig9";
-    inherit dependencies buildDependencies features;
-  };
-  scoped_tls_0_1_2_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "scoped-tls";
-    version = "0.1.2";
-    authors = [ "Alex Crichton <alex@alexcrichton.com>" ];
-    sha256 = "0nblksgki698cqsclsnd6f1pq4yy34350dn2slaah9dlmx9z5xla";
-    inherit dependencies buildDependencies features;
-  };
-  scopeguard_0_3_3_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "scopeguard";
-    version = "0.3.3";
-    authors = [ "bluss" ];
-    sha256 = "0i1l013csrqzfz6c68pr5pi01hg5v5yahq8fsdmaxy6p8ygsjf3r";
-    inherit dependencies buildDependencies features;
-  };
-  security_framework_0_1_16_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "security-framework";
-    version = "0.1.16";
-    authors = [ "Steven Fackler <sfackler@gmail.com>" ];
-    sha256 = "1kxczsaj8gz4922jl5af2gkxh71rasb6khaf3dp7ldlnw9qf2sbm";
-    inherit dependencies buildDependencies features;
-  };
-  security_framework_sys_0_1_16_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "security-framework-sys";
-    version = "0.1.16";
-    authors = [ "Steven Fackler <sfackler@gmail.com>" ];
-    sha256 = "0ai2pivdr5fyc7czbkpcrwap0imyy0r8ndarrl3n5kiv0jha1js3";
-    build = "build.rs";
-    inherit dependencies buildDependencies features;
-  };
-  semver_0_9_0_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "semver";
-    version = "0.9.0";
-    authors = [ "Steve Klabnik <steve@steveklabnik.com>" "The Rust Project Developers" ];
-    sha256 = "0azak2lb2wc36s3x15az886kck7rpnksrw14lalm157rg9sc9z63";
-    inherit dependencies buildDependencies features;
-  };
-  semver_parser_0_7_0_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "semver-parser";
-    version = "0.7.0";
-    authors = [ "Steve Klabnik <steve@steveklabnik.com>" ];
-    sha256 = "1da66c8413yakx0y15k8c055yna5lyb6fr0fw9318kdwkrk5k12h";
-    inherit dependencies buildDependencies features;
-  };
-  serde_1_0_59_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "serde";
-    version = "1.0.59";
-    authors = [ "Erick Tryzelaar <erick.tryzelaar@gmail.com>" "David Tolnay <dtolnay@gmail.com>" ];
-    sha256 = "03izzw5514vqh2d1h50z8rhnrjx8wh3g8kxb959jimz1y8284w7s";
-    build = "build.rs";
-    inherit dependencies buildDependencies features;
-  };
-  serde_derive_1_0_59_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "serde_derive";
-    version = "1.0.59";
-    authors = [ "Erick Tryzelaar <erick.tryzelaar@gmail.com>" "David Tolnay <dtolnay@gmail.com>" ];
-    sha256 = "1izifndfm46pj4spa8xqhwrjbpj0j4sk9012q413dhs55daln320";
-    procMacro = true;
-    inherit dependencies buildDependencies features;
-  };
-  serde_json_1_0_17_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "serde_json";
-    version = "1.0.17";
-    authors = [ "Erick Tryzelaar <erick.tryzelaar@gmail.com>" "David Tolnay <dtolnay@gmail.com>" ];
-    sha256 = "1q4660h8yqq5y3wkpqfzwmyvncfb2z7qqxblngs4jfi1sndi2zlz";
-    inherit dependencies buildDependencies features;
-  };
-  serde_urlencoded_0_5_2_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "serde_urlencoded";
-    version = "0.5.2";
-    authors = [ "Anthony Ramine <n.oxyde@gmail.com>" ];
-    sha256 = "0m5pigng0665qrk4ii1z84pb4lchbsswhgb863yglljskmm056m0";
-    inherit dependencies buildDependencies features;
-  };
-  sha1_0_6_0_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "sha1";
-    version = "0.6.0";
-    authors = [ "Armin Ronacher <armin.ronacher@active-4.com>" ];
-    sha256 = "12cp2b8f3hbwhfpnv1j1afl285xxmmbxh9w4npzvwbdh7xfyww8v";
-    inherit dependencies buildDependencies features;
-  };
-  siphasher_0_2_2_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "siphasher";
-    version = "0.2.2";
-    authors = [ "Frank Denis <github@pureftpd.org>" ];
-    sha256 = "0iyx7nlzfny9ly1634a6zcq0yvrinhxhypwas4p8ry3zqnn76qqr";
-    inherit dependencies buildDependencies features;
-  };
-  skeptic_0_13_3_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "skeptic";
-    version = "0.13.3";
-    authors = [ "Brian Anderson <banderson@mozilla.com>" "Michał Budzyński <budziq@gmail.com>" ];
-    sha256 = "0zfxk41bqby451wd3fr0mnbq0q6l8f7gzp0n96ccgjcvh2nlcnrj";
-    libPath = "lib.rs";
-    inherit dependencies buildDependencies features;
-  };
-  slab_0_3_0_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "slab";
-    version = "0.3.0";
-    authors = [ "Carl Lerche <me@carllerche.com>" ];
-    sha256 = "0y6lhjggksh57hyfd3l6p9wgv5nhvw9c6djrysq7jnalz8fih21k";
-    inherit dependencies buildDependencies features;
-  };
-  slab_0_4_0_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "slab";
-    version = "0.4.0";
-    authors = [ "Carl Lerche <me@carllerche.com>" ];
-    sha256 = "1qy2vkgwqgj5z4ygdkh040n9yh1vz80v5flxb1xrvw3i4wxs7yx0";
-    inherit dependencies buildDependencies features;
-  };
-  smallvec_0_2_1_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "smallvec";
-    version = "0.2.1";
-    authors = [ "Simon Sapin <simon.sapin@exyr.org>" ];
-    sha256 = "0rnsll9af52bpjngz0067dpm1ndqmh76i64a58fc118l4lvnjxw2";
-    libPath = "lib.rs";
-    inherit dependencies buildDependencies features;
-  };
-  smallvec_0_6_1_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "smallvec";
-    version = "0.6.1";
-    authors = [ "Simon Sapin <simon.sapin@exyr.org>" ];
-    sha256 = "16m07xh67xcdpwjkbzbv9d7visxmz4fb4a8jfcrsrf333w7vkl1g";
-    libPath = "lib.rs";
-    inherit dependencies buildDependencies features;
-  };
-  socket2_0_3_5_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "socket2";
-    version = "0.3.5";
-    authors = [ "Alex Crichton <alex@alexcrichton.com>" ];
-    sha256 = "0bi6z6qvra16rwm3lk7xz4aakvcmmak6fpdmra1v7ccp40bss0kf";
-    inherit dependencies buildDependencies features;
-  };
-  stable_deref_trait_1_0_0_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "stable_deref_trait";
-    version = "1.0.0";
-    authors = [ "Robert Grosse <n210241048576@gmail.com>" ];
-    sha256 = "0ya5fms9qdwkd52d3a111w4vcz18j4rbfx4p88z44116cqd6cczr";
-    inherit dependencies buildDependencies features;
-  };
-  string_0_1_0_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "string";
-    version = "0.1.0";
-    authors = [ "Carl Lerche <me@carllerche.com>" ];
-    sha256 = "0pca6c4kf47izwapzz9bzmq7sb6hbzn26xxdfi8ld7mqf0dqg1z7";
-    inherit dependencies buildDependencies features;
-  };
-  strsim_0_7_0_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "strsim";
-    version = "0.7.0";
-    authors = [ "Danny Guo <dannyguo91@gmail.com>" ];
-    sha256 = "0fy0k5f2705z73mb3x9459bpcvrx4ky8jpr4zikcbiwan4bnm0iv";
-    inherit dependencies buildDependencies features;
-  };
-  syn_0_11_11_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "syn";
-    version = "0.11.11";
-    authors = [ "David Tolnay <dtolnay@gmail.com>" ];
-    sha256 = "0yw8ng7x1dn5a6ykg0ib49y7r9nhzgpiq2989rqdp7rdz3n85502";
-    inherit dependencies buildDependencies features;
-  };
-  syn_0_12_15_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "syn";
-    version = "0.12.15";
-    authors = [ "David Tolnay <dtolnay@gmail.com>" ];
-    sha256 = "0kkzav72yy0idzbh9zcg92dam3785xzrbxjjp8vxcis9z2zd6b13";
-    inherit dependencies buildDependencies features;
-  };
-  syn_0_13_11_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "syn";
-    version = "0.13.11";
-    authors = [ "David Tolnay <dtolnay@gmail.com>" ];
-    sha256 = "06ybhxbyv8zshli47w0ihcnix74d6ss5yic3imns895q8pqgia2k";
-    inherit dependencies buildDependencies features;
-  };
-  syn_0_14_0_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "syn";
-    version = "0.14.0";
-    authors = [ "David Tolnay <dtolnay@gmail.com>" ];
-    sha256 = "1h62k6ix5mga8b6xffc3f114fa34wsyq1wxakx6q84j1z9s7fbkd";
-    inherit dependencies buildDependencies features;
-  };
-  synom_0_11_3_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "synom";
-    version = "0.11.3";
-    authors = [ "David Tolnay <dtolnay@gmail.com>" ];
-    sha256 = "1l6d1s9qjfp6ng2s2z8219igvlv7gyk8gby97sdykqc1r93d8rhc";
-    inherit dependencies buildDependencies features;
-  };
-  synstructure_0_6_1_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "synstructure";
-    version = "0.6.1";
-    authors = [ "Michael Layzell <michael@thelayzells.com>" ];
-    sha256 = "1xnyw58va9zcqi4vvpnmpllacdj2a0mvy0cbd698izmr4qs92xlk";
-    inherit dependencies buildDependencies features;
-  };
-  take_0_1_0_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "take";
-    version = "0.1.0";
-    authors = [ "Carl Lerche <me@carllerche.com>" ];
-    sha256 = "17rfh39di5n8w9aghpic2r94cndi3dr04l60nkjylmxfxr3iwlhd";
-    inherit dependencies buildDependencies features;
-  };
-  tempdir_0_3_7_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "tempdir";
-    version = "0.3.7";
-    authors = [ "The Rust Project Developers" ];
-    sha256 = "0y53sxybyljrr7lh0x0ysrsa7p7cljmwv9v80acy3rc6n97g67vy";
-    inherit dependencies buildDependencies features;
-  };
-  termcolor_0_3_6_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "termcolor";
-    version = "0.3.6";
-    authors = [ "Andrew Gallant <jamslam@gmail.com>" ];
-    sha256 = "0w609sa1apl1kii67ln2g82r4rrycw45zgjq7mxxjrx1fa21v05z";
-    inherit dependencies buildDependencies features;
-  };
-  termion_1_5_1_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "termion";
-    version = "1.5.1";
-    authors = [ "ticki <Ticki@users.noreply.github.com>" "gycos <alexandre.bury@gmail.com>" "IGI-111 <igi-111@protonmail.com>" ];
-    sha256 = "02gq4vd8iws1f3gjrgrgpajsk2bk43nds5acbbb4s8dvrdvr8nf1";
-    inherit dependencies buildDependencies features;
-  };
-  textwrap_0_9_0_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "textwrap";
-    version = "0.9.0";
-    authors = [ "Martin Geisler <martin@geisler.net>" ];
-    sha256 = "18jg79ndjlwndz01mlbh82kkr2arqm658yn5kwp65l5n1hz8w4yb";
-    inherit dependencies buildDependencies features;
-  };
-  thread_local_0_3_5_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "thread_local";
-    version = "0.3.5";
-    authors = [ "Amanieu d'Antras <amanieu@gmail.com>" ];
-    sha256 = "0mkp0sp91aqsk7brgygai4igv751r1754rsxn37mig3ag5rx8np6";
-    inherit dependencies buildDependencies features;
-  };
-  time_0_1_40_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "time";
-    version = "0.1.40";
-    authors = [ "The Rust Project Developers" ];
-    sha256 = "0wgnbjamljz6bqxsd5axc4p2mmhkqfrryj4gf2yswjaxiw5dd01m";
-    inherit dependencies buildDependencies features;
-  };
-  tokio_0_1_6_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "tokio";
-    version = "0.1.6";
-    authors = [ "Carl Lerche <me@carllerche.com>" ];
-    sha256 = "03sw1pkl0pkrlrx2qc82c3r29bnibzbsy9gl16qsi75p3jqqj3g0";
-    inherit dependencies buildDependencies features;
-  };
-  tokio_core_0_1_17_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "tokio-core";
-    version = "0.1.17";
-    authors = [ "Carl Lerche <me@carllerche.com>" ];
-    sha256 = "1j6c5q3aakvb1hjx4r95xwl5ms8rp19k4qsr6v6ngwbvr6f9z6rs";
-    inherit dependencies buildDependencies features;
-  };
-  tokio_executor_0_1_2_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "tokio-executor";
-    version = "0.1.2";
-    authors = [ "Carl Lerche <me@carllerche.com>" ];
-    sha256 = "1y4mwqjw438x6jskigz1knvfbpbinxfv6h43s60w6wdb80xmyg48";
-    inherit dependencies buildDependencies features;
-  };
-  tokio_fs_0_1_0_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "tokio-fs";
-    version = "0.1.0";
-    authors = [ "Carl Lerche <me@carllerche.com>" ];
-    sha256 = "02w7py4i92vwa0zdap4p2inalglmklfm6xj6zf5fzbynxfj2jddm";
-    inherit dependencies buildDependencies features;
-  };
-  tokio_io_0_1_6_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "tokio-io";
-    version = "0.1.6";
-    authors = [ "Carl Lerche <me@carllerche.com>" ];
-    sha256 = "0awvw1cfylws2lqdls615hcnrz7x7krr7gm57bgj55xai14rmk9k";
-    inherit dependencies buildDependencies features;
-  };
-  tokio_proto_0_1_1_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "tokio-proto";
-    version = "0.1.1";
-    authors = [ "Carl Lerche <me@carllerche.com>" ];
-    sha256 = "030q9h8pn1ngm80klff5irglxxki60hf5maw0mppmmr46k773z66";
-    inherit dependencies buildDependencies features;
-  };
-  tokio_reactor_0_1_1_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "tokio-reactor";
-    version = "0.1.1";
-    authors = [ "Carl Lerche <me@carllerche.com>" ];
-    sha256 = "0crs57d2k4a69abqhjzs3crs3hfw7qia3phpc3saxpnwh1j51093";
-    inherit dependencies buildDependencies features;
-  };
-  tokio_service_0_1_0_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "tokio-service";
-    version = "0.1.0";
-    authors = [ "Carl Lerche <me@carllerche.com>" ];
-    sha256 = "0c85wm5qz9fabg0k6k763j89m43n6max72d3a8sxcs940id6qmih";
-    inherit dependencies buildDependencies features;
-  };
-  tokio_signal_0_1_5_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "tokio-signal";
-    version = "0.1.5";
-    authors = [ "Alex Crichton <alex@alexcrichton.com>" ];
-    sha256 = "1rqbb1n2kzzy3gqc4ha3rd3km1wdgy1mgbbngn5alpq9xvd4x1kz";
-    inherit dependencies buildDependencies features;
-  };
-  tokio_tcp_0_1_0_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "tokio-tcp";
-    version = "0.1.0";
-    authors = [ "Carl Lerche <me@carllerche.com>" ];
-    sha256 = "19cyajkqvvbn3qqnak0qzivdq6amfjymbc30k7bbqhx4y1pcgqvh";
-    inherit dependencies buildDependencies features;
-  };
-  tokio_threadpool_0_1_3_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "tokio-threadpool";
-    version = "0.1.3";
-    authors = [ "Carl Lerche <me@carllerche.com>" ];
-    sha256 = "03frrcrq0r8z7gl7k9i3qy7ijnk5mbwcszlcbfk7zfhy23ik46md";
-    inherit dependencies buildDependencies features;
-  };
-  tokio_timer_0_2_3_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "tokio-timer";
-    version = "0.2.3";
-    authors = [ "Carl Lerche <me@carllerche.com>" ];
-    sha256 = "13n45gbjv1wj5pf9v0s63qxpv88yifm8zfbq1pyhwdpf4nwnvn97";
-    inherit dependencies buildDependencies features;
-  };
-  tokio_tls_0_1_4_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "tokio-tls";
-    version = "0.1.4";
-    authors = [ "Carl Lerche <me@carllerche.com>" "Alex Crichton <alex@alexcrichton.com>" ];
-    sha256 = "07rwv3q6jbg65ln1ahzb4g648l8lcn4hvc0ax3r12bnsi1py7agp";
-    inherit dependencies buildDependencies features;
-  };
-  tokio_udp_0_1_0_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "tokio-udp";
-    version = "0.1.0";
-    authors = [ "Carl Lerche <me@carllerche.com>" ];
-    sha256 = "0c1wjiqri0xlfrqq2hmgppvl9j8pjy8469s67f08dc8lybmrb1q1";
-    inherit dependencies buildDependencies features;
-  };
-  trust_dns_proto_0_3_3_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "trust-dns-proto";
-    version = "0.3.3";
-    authors = [ "Benjamin Fry <benjaminfry@me.com>" ];
-    sha256 = "10cf1999j552fdxnk9cq84n26ybj5b8pk2914akag57g035iq1ql";
-    libPath = "src/lib.rs";
-    libName = "trust_dns_proto";
-    inherit dependencies buildDependencies features;
-  };
-  trust_dns_resolver_0_8_2_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "trust-dns-resolver";
-    version = "0.8.2";
-    authors = [ "Benjamin Fry <benjaminfry@me.com>" ];
-    sha256 = "0df4ls6gk97zc1931jwm8w9d1mg34h0j4zhm77aaxwq9cjk71xw1";
-    libPath = "src/lib.rs";
-    libName = "trust_dns_resolver";
-    inherit dependencies buildDependencies features;
-  };
-  try_lock_0_1_0_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "try-lock";
-    version = "0.1.0";
-    authors = [ "Sean McArthur <sean@seanmonstar.com>" ];
-    sha256 = "0kfrqrb2xkjig54s3qfy80dpldknr19p3rmp0n82yk5929j879k3";
-    inherit dependencies buildDependencies features;
-  };
-  twoway_0_1_8_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "twoway";
-    version = "0.1.8";
-    authors = [ "bluss" ];
-    sha256 = "0svrdcy08h0gm884f220hx37g8fsp5z6abaw6jb6g3f7djw1ir1g";
-    inherit dependencies buildDependencies features;
-  };
-  typed_arena_1_3_0_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "typed-arena";
-    version = "1.3.0";
-    authors = [ "Simon Sapin <simon.sapin@exyr.org>" ];
-    sha256 = "19yylpxv4mkx5285igiywh57snj6bgk8yw6139cjy7j86nz0mx9s";
-    libPath = "src/lib.rs";
-    libName = "typed_arena";
-    inherit dependencies buildDependencies features;
-  };
-  ucd_util_0_1_1_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "ucd-util";
-    version = "0.1.1";
-    authors = [ "Andrew Gallant <jamslam@gmail.com>" ];
-    sha256 = "02a8h3siipx52b832xc8m8rwasj6nx9jpiwfldw8hp6k205hgkn0";
-    inherit dependencies buildDependencies features;
-  };
-  unicase_1_4_2_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "unicase";
-    version = "1.4.2";
-    authors = [ "Sean McArthur <sean.monstar@gmail.com>" ];
-    sha256 = "0rbnhw2mnhcwrij3vczp0sl8zdfmvf2dlh8hly81kj7132kfj0mf";
-    build = "build.rs";
-    inherit dependencies buildDependencies features;
-  };
-  unicase_2_1_0_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "unicase";
-    version = "2.1.0";
-    authors = [ "Sean McArthur <sean@seanmonstar.com>" ];
-    sha256 = "1zzn16hh8fdx5pnbbnl32q8m2mh4vpd1jm9pdcv969ik83dw4byp";
-    build = "build.rs";
-    inherit dependencies buildDependencies features;
-  };
-  unicode_bidi_0_3_4_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "unicode-bidi";
-    version = "0.3.4";
-    authors = [ "The Servo Project Developers" ];
-    sha256 = "0lcd6jasrf8p9p0q20qyf10c6xhvw40m2c4rr105hbk6zy26nj1q";
-    libName = "unicode_bidi";
-    inherit dependencies buildDependencies features;
-  };
-  unicode_normalization_0_1_7_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "unicode-normalization";
-    version = "0.1.7";
-    authors = [ "kwantam <kwantam@gmail.com>" ];
-    sha256 = "1da2hv800pd0wilmn4idwpgv5p510hjxizjcfv6xzb40xcsjd8gs";
-    inherit dependencies buildDependencies features;
-  };
-  unicode_width_0_1_5_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "unicode-width";
-    version = "0.1.5";
-    authors = [ "kwantam <kwantam@gmail.com>" ];
-    sha256 = "0886lc2aymwgy0lhavwn6s48ik3c61ykzzd3za6prgnw51j7bi4w";
-    inherit dependencies buildDependencies features;
-  };
-  unicode_xid_0_0_4_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "unicode-xid";
-    version = "0.0.4";
-    authors = [ "erick.tryzelaar <erick.tryzelaar@gmail.com>" "kwantam <kwantam@gmail.com>" ];
-    sha256 = "1dc8wkkcd3s6534s5aw4lbjn8m67flkkbnajp5bl8408wdg8rh9v";
-    inherit dependencies buildDependencies features;
-  };
-  unicode_xid_0_1_0_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "unicode-xid";
-    version = "0.1.0";
-    authors = [ "erick.tryzelaar <erick.tryzelaar@gmail.com>" "kwantam <kwantam@gmail.com>" ];
-    sha256 = "05wdmwlfzxhq3nhsxn6wx4q8dhxzzfb9szsz6wiw092m1rjj01zj";
-    inherit dependencies buildDependencies features;
-  };
-  unicode_categories_0_1_1_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "unicode_categories";
-    version = "0.1.1";
-    authors = [ "Sean Gillespie <sean@swgillespie.me>" ];
-    sha256 = "0capsv7dgw45sh7gpdgpfnmrjx2rdmkp5m523h35apq51cf8fpdi";
-    inherit dependencies buildDependencies features;
-  };
-  unreachable_1_0_0_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "unreachable";
-    version = "1.0.0";
-    authors = [ "Jonathan Reem <jonathan.reem@gmail.com>" ];
-    sha256 = "1am8czbk5wwr25gbp2zr007744fxjshhdqjz9liz7wl4pnv3whcf";
-    inherit dependencies buildDependencies features;
-  };
-  untrusted_0_5_1_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "untrusted";
-    version = "0.5.1";
-    authors = [ "Brian Smith <brian@briansmith.org>" ];
-    sha256 = "10nbd2nd9asx0v2g59i188rbpclh2xjaj10cjmp8h8a7in4i9pvd";
-    inherit dependencies buildDependencies features;
-  };
-  url_1_7_0_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "url";
-    version = "1.7.0";
-    authors = [ "The rust-url developers" ];
-    sha256 = "0333ynhkp47hna88aamz1zpk4lxyzx4ab9n7yhc75g14w27cv8jj";
-    inherit dependencies buildDependencies features;
-  };
-  url_serde_0_2_0_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "url_serde";
-    version = "0.2.0";
-    authors = [ "The rust-url developers" ];
-    sha256 = "07ry87rw0pi1da6b53f7s3f52wx3ihxbcgjd4ldspfv5xh6wipsg";
-    inherit dependencies buildDependencies features;
-  };
-  utf8_ranges_1_0_0_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "utf8-ranges";
-    version = "1.0.0";
-    authors = [ "Andrew Gallant <jamslam@gmail.com>" ];
-    sha256 = "0rzmqprwjv9yp1n0qqgahgm24872x6c0xddfym5pfndy7a36vkn0";
-    inherit dependencies buildDependencies features;
-  };
-  uuid_0_5_1_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "uuid";
-    version = "0.5.1";
-    authors = [ "The Rust Project Developers" ];
-    sha256 = "17d4csjmy7fa3ckrm40d3c3v411rw5d4400w756mcrzyw2pm1i2r";
-    inherit dependencies buildDependencies features;
-  };
-  uuid_0_6_3_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "uuid";
-    version = "0.6.3";
-    authors = [ "Ashley Mannix<ashleymannix@live.com.au>" "Christopher Armstrong" "Dylan DPC<dylan.dpc@gmail.com>" "Hunar Roop Kahlon<hunar.roop@gmail.com>" ];
-    sha256 = "1kjp5xglhab4saaikn95zn3mr4zja7484pv307cb5bxm2sawb8p6";
-    inherit dependencies buildDependencies features;
-  };
-  vcpkg_0_2_3_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "vcpkg";
-    version = "0.2.3";
-    authors = [ "Jim McGrath <jimmc2@gmail.com>" ];
-    sha256 = "0achi8sfy0wm4q04gj7nwpq9xfx8ynk6vv4r12a3ijg26hispq0c";
-    inherit dependencies buildDependencies features;
-  };
-  vec_map_0_8_1_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "vec_map";
-    version = "0.8.1";
-    authors = [ "Alex Crichton <alex@alexcrichton.com>" "Jorge Aparicio <japaricious@gmail.com>" "Alexis Beingessner <a.beingessner@gmail.com>" "Brian Anderson <>" "tbu- <>" "Manish Goregaokar <>" "Aaron Turon <aturon@mozilla.com>" "Adolfo Ochagavía <>" "Niko Matsakis <>" "Steven Fackler <>" "Chase Southwood <csouth3@illinois.edu>" "Eduard Burtescu <>" "Florian Wilkens <>" "Félix Raimundo <>" "Tibor Benke <>" "Markus Siemens <markus@m-siemens.de>" "Josh Branchaud <jbranchaud@gmail.com>" "Huon Wilson <dbau.pp@gmail.com>" "Corey Farwell <coref@rwell.org>" "Aaron Liblong <>" "Nick Cameron <nrc@ncameron.org>" "Patrick Walton <pcwalton@mimiga.net>" "Felix S Klock II <>" "Andrew Paseltiner <apaseltiner@gmail.com>" "Sean McArthur <sean.monstar@gmail.com>" "Vadim Petrochenkov <>" ];
-    sha256 = "1jj2nrg8h3l53d43rwkpkikq5a5x15ms4rf1rw92hp5lrqhi8mpi";
-    inherit dependencies buildDependencies features;
-  };
-  version_check_0_1_3_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "version_check";
-    version = "0.1.3";
-    authors = [ "Sergio Benitez <sb@sergio.bz>" ];
-    sha256 = "0z635wdclv9bvafj11fpgndn7y79ibpsnc364pm61i1m4wwg8msg";
-    inherit dependencies buildDependencies features;
-  };
-  void_1_0_2_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "void";
-    version = "1.0.2";
-    authors = [ "Jonathan Reem <jonathan.reem@gmail.com>" ];
-    sha256 = "0h1dm0dx8dhf56a83k68mijyxigqhizpskwxfdrs1drwv2cdclv3";
-    inherit dependencies buildDependencies features;
-  };
-  walkdir_2_1_4_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "walkdir";
-    version = "2.1.4";
-    authors = [ "Andrew Gallant <jamslam@gmail.com>" ];
-    sha256 = "1bx9q2xnhgbjygn99zi8j5avhv8jmkbi5lxgg20h9kmgswqkbmny";
-    inherit dependencies buildDependencies features;
-  };
-  want_0_0_4_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "want";
-    version = "0.0.4";
-    authors = [ "Sean McArthur <sean@seanmonstar.com>" ];
-    sha256 = "1l1qy4pvg5q71nrzfjldw9xzqhhgicj4slly1bal89hr2aaibpy0";
-    inherit dependencies buildDependencies features;
-  };
-  widestring_0_2_2_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "widestring";
-    version = "0.2.2";
-    authors = [ "Kathryn Long <squeeself@gmail.com>" ];
-    sha256 = "07n6cmk47h8v4bvg7cwawipcn6ijqcfwhf9w6x3r2nw3ghsm2h0a";
-    inherit dependencies buildDependencies features;
-  };
-  winapi_0_2_8_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "winapi";
-    version = "0.2.8";
-    authors = [ "Peter Atashian <retep998@gmail.com>" ];
-    sha256 = "0a45b58ywf12vb7gvj6h3j264nydynmzyqz8d8rqxsj6icqv82as";
-    inherit dependencies buildDependencies features;
-  };
-  winapi_0_3_4_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "winapi";
-    version = "0.3.4";
-    authors = [ "Peter Atashian <retep998@gmail.com>" ];
-    sha256 = "1qbrf5dcnd8j36cawby5d9r5vx07r0l4ryf672pfncnp8895k9lx";
-    build = "build.rs";
-    inherit dependencies buildDependencies features;
-  };
-  winapi_build_0_1_1_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "winapi-build";
-    version = "0.1.1";
-    authors = [ "Peter Atashian <retep998@gmail.com>" ];
-    sha256 = "1lxlpi87rkhxcwp2ykf1ldw3p108hwm24nywf3jfrvmff4rjhqga";
-    libName = "build";
-    inherit dependencies buildDependencies features;
-  };
-  winapi_i686_pc_windows_gnu_0_4_0_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "winapi-i686-pc-windows-gnu";
-    version = "0.4.0";
-    authors = [ "Peter Atashian <retep998@gmail.com>" ];
-    sha256 = "05ihkij18r4gamjpxj4gra24514can762imjzlmak5wlzidplzrp";
-    build = "build.rs";
-    inherit dependencies buildDependencies features;
-  };
-  winapi_x86_64_pc_windows_gnu_0_4_0_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "winapi-x86_64-pc-windows-gnu";
-    version = "0.4.0";
-    authors = [ "Peter Atashian <retep998@gmail.com>" ];
-    sha256 = "0n1ylmlsb8yg1v583i4xy0qmqg42275flvbc51hdqjjfjcl9vlbj";
-    build = "build.rs";
-    inherit dependencies buildDependencies features;
-  };
-  wincolor_0_1_6_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "wincolor";
-    version = "0.1.6";
-    authors = [ "Andrew Gallant <jamslam@gmail.com>" ];
-    sha256 = "0f8m3l86pw6qi31jidqj78pgd15xj914850lyvsxkbln4f1drv47";
-    inherit dependencies buildDependencies features;
-  };
-  winreg_0_5_0_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "winreg";
-    version = "0.5.0";
-    authors = [ "Igor Shaula <gentoo90@gmail.com>" ];
-    sha256 = "0smhk0h5kcwzpjlhyvx2p6cjda28cchzjbnwbs658rz641q98rcd";
-    inherit dependencies buildDependencies features;
-  };
-  winutil_0_1_1_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "winutil";
-    version = "0.1.1";
-    authors = [ "Dave Lancaster <lancaster.dave@gmail.com>" ];
-    sha256 = "1wvq440hl1v3a65agjbp031gw5jim3qasfvmz703dlz95pbjv45r";
-    inherit dependencies buildDependencies features;
-  };
-  ws2_32_sys_0_2_1_ = { dependencies?[], buildDependencies?[], features?[] }: buildRustCrate {
-    crateName = "ws2_32-sys";
-    version = "0.2.1";
-    authors = [ "Peter Atashian <retep998@gmail.com>" ];
-    sha256 = "1zpy9d9wk11sj17fczfngcj28w4xxjs3b4n036yzpy38dxp4f7kc";
-    libName = "ws2_32";
-    build = "build.rs";
-    inherit dependencies buildDependencies features;
-  };
-  actix_0_5_7 = { features?(actix_0_5_7_features {}) }: actix_0_5_7_ {
-    dependencies = mapFeatures features ([ actix_derive_0_2_0 bitflags_1_0_3 bytes_0_4_7 crossbeam_channel_0_1_2 failure_0_1_1 futures_0_1_21 libc_0_2_41 log_0_4_1 smallvec_0_6_1 tokio_core_0_1_17 tokio_io_0_1_6 tokio_signal_0_1_5 trust_dns_resolver_0_8_2 uuid_0_6_3 ]);
-    buildDependencies = mapFeatures features ([ skeptic_0_13_3 ]);
-  };
-  actix_0_5_7_features = f: updateFeatures f (rec {
-    actix_0_5_7.default = (f.actix_0_5_7.default or true);
-    actix_derive_0_2_0.default = true;
-    bitflags_1_0_3.default = true;
-    bytes_0_4_7.default = true;
-    crossbeam_channel_0_1_2.default = true;
-    failure_0_1_1.default = true;
-    futures_0_1_21.default = true;
-    libc_0_2_41.default = true;
-    log_0_4_1.default = true;
-    skeptic_0_13_3.default = true;
-    smallvec_0_6_1.default = true;
-    tokio_core_0_1_17.default = true;
-    tokio_io_0_1_6.default = true;
-    tokio_signal_0_1_5.default = true;
-    trust_dns_resolver_0_8_2.default = true;
-    uuid_0_6_3."v4" = true;
-    uuid_0_6_3.default = true;
-  }) [ actix_derive_0_2_0_features bitflags_1_0_3_features bytes_0_4_7_features crossbeam_channel_0_1_2_features failure_0_1_1_features futures_0_1_21_features libc_0_2_41_features log_0_4_1_features smallvec_0_6_1_features tokio_core_0_1_17_features tokio_io_0_1_6_features tokio_signal_0_1_5_features trust_dns_resolver_0_8_2_features uuid_0_6_3_features skeptic_0_13_3_features ];
-  actix_web_0_6_9 = { features?(actix_web_0_6_9_features {}) }: actix_web_0_6_9_ {
-    dependencies = mapFeatures features ([ actix_0_5_7 base64_0_9_1 bitflags_1_0_3 byteorder_1_2_3 bytes_0_4_7 cookie_0_10_1 encoding_0_2_33 failure_0_1_1 futures_0_1_21 futures_cpupool_0_1_8 h2_0_1_7 http_0_1_5 http_range_0_1_1 httparse_1_2_4 language_tags_0_2_2 lazy_static_1_0_0 libc_0_2_41 log_0_4_1 mime_0_3_7 mime_guess_2_0_0_alpha_4 mio_0_6_14 net2_0_2_32 num_cpus_1_8_0 percent_encoding_1_0_1 rand_0_4_2 regex_1_0_0 serde_1_0_59 serde_json_1_0_17 serde_urlencoded_0_5_2 sha1_0_6_0 slab_0_4_0 smallvec_0_6_1 time_0_1_40 tokio_core_0_1_17 tokio_io_0_1_6 url_1_7_0 ]
-      ++ (if features.actix_web_0_6_9."brotli2" or false then [ brotli2_0_3_2 ] else [])
-      ++ (if features.actix_web_0_6_9."flate2" or false then [ flate2_1_0_1 ] else []));
-    buildDependencies = mapFeatures features ([ version_check_0_1_3 ]);
-    features = mkFeatures (features.actix_web_0_6_9 or {});
-  };
-  actix_web_0_6_9_features = f: updateFeatures f (rec {
-    actix_0_5_7.default = true;
-    actix_web_0_6_9."brotli2" =
-      (f.actix_web_0_6_9."brotli2" or false) ||
-      (f.actix_web_0_6_9.brotli or false) ||
-      (actix_web_0_6_9.brotli or false);
-    actix_web_0_6_9."flate2-c" =
-      (f.actix_web_0_6_9."flate2-c" or false) ||
-      (f.actix_web_0_6_9.default or false) ||
-      (actix_web_0_6_9.default or false);
-    actix_web_0_6_9."native-tls" =
-      (f.actix_web_0_6_9."native-tls" or false) ||
-      (f.actix_web_0_6_9.tls or false) ||
-      (actix_web_0_6_9.tls or false);
-    actix_web_0_6_9."tokio-openssl" =
-      (f.actix_web_0_6_9."tokio-openssl" or false) ||
-      (f.actix_web_0_6_9.alpn or false) ||
-      (actix_web_0_6_9.alpn or false);
-    actix_web_0_6_9."tokio-tls" =
-      (f.actix_web_0_6_9."tokio-tls" or false) ||
-      (f.actix_web_0_6_9.tls or false) ||
-      (actix_web_0_6_9.tls or false);
-    actix_web_0_6_9.brotli =
-      (f.actix_web_0_6_9.brotli or false) ||
-      (f.actix_web_0_6_9.default or false) ||
-      (actix_web_0_6_9.default or false);
-    actix_web_0_6_9.default = (f.actix_web_0_6_9.default or true);
-    actix_web_0_6_9.openssl =
-      (f.actix_web_0_6_9.openssl or false) ||
-      (f.actix_web_0_6_9.alpn or false) ||
-      (actix_web_0_6_9.alpn or false);
-    actix_web_0_6_9.session =
-      (f.actix_web_0_6_9.session or false) ||
-      (f.actix_web_0_6_9.default or false) ||
-      (actix_web_0_6_9.default or false);
-    base64_0_9_1.default = true;
-    bitflags_1_0_3.default = true;
-    brotli2_0_3_2.default = true;
-    byteorder_1_2_3.default = true;
-    bytes_0_4_7.default = true;
-    cookie_0_10_1."percent-encode" = true;
-    cookie_0_10_1.default = true;
-    cookie_0_10_1.secure =
-      (f.cookie_0_10_1.secure or false) ||
-      (actix_web_0_6_9.session or false) ||
-      (f.actix_web_0_6_9.session or false);
-    encoding_0_2_33.default = true;
-    failure_0_1_1.default = true;
-    flate2_1_0_1."miniz-sys" =
-      (f.flate2_1_0_1."miniz-sys" or false) ||
-      (actix_web_0_6_9."flate2-c" or false) ||
-      (f.actix_web_0_6_9."flate2-c" or false);
-    flate2_1_0_1.default = (f.flate2_1_0_1.default or false);
-    flate2_1_0_1.rust_backend =
-      (f.flate2_1_0_1.rust_backend or false) ||
-      (actix_web_0_6_9."flate2-rust" or false) ||
-      (f.actix_web_0_6_9."flate2-rust" or false);
-    futures_0_1_21.default = true;
-    futures_cpupool_0_1_8.default = true;
-    h2_0_1_7.default = true;
-    http_0_1_5.default = true;
-    http_range_0_1_1.default = true;
-    httparse_1_2_4.default = true;
-    language_tags_0_2_2.default = true;
-    lazy_static_1_0_0.default = true;
-    libc_0_2_41.default = true;
-    log_0_4_1.default = true;
-    mime_0_3_7.default = true;
-    mime_guess_2_0_0_alpha_4.default = true;
-    mio_0_6_14.default = true;
-    net2_0_2_32.default = true;
-    num_cpus_1_8_0.default = true;
-    percent_encoding_1_0_1.default = true;
-    rand_0_4_2.default = true;
-    regex_1_0_0.default = true;
-    serde_1_0_59.default = true;
-    serde_json_1_0_17.default = true;
-    serde_urlencoded_0_5_2.default = true;
-    sha1_0_6_0.default = true;
-    slab_0_4_0.default = true;
-    smallvec_0_6_1.default = true;
-    time_0_1_40.default = true;
-    tokio_core_0_1_17.default = true;
-    tokio_io_0_1_6.default = true;
-    url_1_7_0.default = true;
-    url_1_7_0.query_encoding = true;
-    version_check_0_1_3.default = true;
-  }) [ actix_0_5_7_features base64_0_9_1_features bitflags_1_0_3_features brotli2_0_3_2_features byteorder_1_2_3_features bytes_0_4_7_features cookie_0_10_1_features encoding_0_2_33_features failure_0_1_1_features flate2_1_0_1_features futures_0_1_21_features futures_cpupool_0_1_8_features h2_0_1_7_features http_0_1_5_features http_range_0_1_1_features httparse_1_2_4_features language_tags_0_2_2_features lazy_static_1_0_0_features libc_0_2_41_features log_0_4_1_features mime_0_3_7_features mime_guess_2_0_0_alpha_4_features mio_0_6_14_features net2_0_2_32_features num_cpus_1_8_0_features percent_encoding_1_0_1_features rand_0_4_2_features regex_1_0_0_features serde_1_0_59_features serde_json_1_0_17_features serde_urlencoded_0_5_2_features sha1_0_6_0_features slab_0_4_0_features smallvec_0_6_1_features time_0_1_40_features tokio_core_0_1_17_features tokio_io_0_1_6_features url_1_7_0_features version_check_0_1_3_features ];
-  actix_derive_0_2_0 = { features?(actix_derive_0_2_0_features {}) }: actix_derive_0_2_0_ {
-    dependencies = mapFeatures features ([ quote_0_3_15 rand_0_3_22 syn_0_11_11 ]);
-    buildDependencies = mapFeatures features ([ version_check_0_1_3 ]);
-  };
-  actix_derive_0_2_0_features = f: updateFeatures f (rec {
-    actix_derive_0_2_0.default = (f.actix_derive_0_2_0.default or true);
-    quote_0_3_15.default = true;
-    rand_0_3_22.default = true;
-    syn_0_11_11.default = true;
-    syn_0_11_11.full = true;
-    version_check_0_1_3.default = true;
-  }) [ quote_0_3_15_features rand_0_3_22_features syn_0_11_11_features version_check_0_1_3_features ];
-  adler32_1_0_2 = { features?(adler32_1_0_2_features {}) }: adler32_1_0_2_ {};
-  adler32_1_0_2_features = f: updateFeatures f (rec {
-    adler32_1_0_2.default = (f.adler32_1_0_2.default or true);
-  }) [];
-  aho_corasick_0_6_4 = { features?(aho_corasick_0_6_4_features {}) }: aho_corasick_0_6_4_ {
-    dependencies = mapFeatures features ([ memchr_2_0_1 ]);
-  };
-  aho_corasick_0_6_4_features = f: updateFeatures f (rec {
-    aho_corasick_0_6_4.default = (f.aho_corasick_0_6_4.default or true);
-    memchr_2_0_1.default = true;
-  }) [ memchr_2_0_1_features ];
-  ansi_term_0_11_0 = { features?(ansi_term_0_11_0_features {}) }: ansi_term_0_11_0_ {
-    dependencies = (if kernel == "windows" then mapFeatures features ([ winapi_0_3_4 ]) else []);
-  };
-  ansi_term_0_11_0_features = f: updateFeatures f (rec {
-    ansi_term_0_11_0.default = (f.ansi_term_0_11_0.default or true);
-    winapi_0_3_4.consoleapi = true;
-    winapi_0_3_4.default = true;
-    winapi_0_3_4.errhandlingapi = true;
-    winapi_0_3_4.processenv = true;
-  }) [ winapi_0_3_4_features ];
-  antidote_1_0_0 = { features?(antidote_1_0_0_features {}) }: antidote_1_0_0_ {};
-  antidote_1_0_0_features = f: updateFeatures f (rec {
-    antidote_1_0_0.default = (f.antidote_1_0_0.default or true);
-  }) [];
-  arrayvec_0_4_7 = { features?(arrayvec_0_4_7_features {}) }: arrayvec_0_4_7_ {
-    dependencies = mapFeatures features ([ nodrop_0_1_12 ]);
-    features = mkFeatures (features.arrayvec_0_4_7 or {});
-  };
-  arrayvec_0_4_7_features = f: updateFeatures f (rec {
-    arrayvec_0_4_7.default = (f.arrayvec_0_4_7.default or true);
-    arrayvec_0_4_7.serde =
-      (f.arrayvec_0_4_7.serde or false) ||
-      (f.arrayvec_0_4_7."serde-1" or false) ||
-      (arrayvec_0_4_7."serde-1" or false);
-    arrayvec_0_4_7.std =
-      (f.arrayvec_0_4_7.std or false) ||
-      (f.arrayvec_0_4_7.default or false) ||
-      (arrayvec_0_4_7.default or false);
-    nodrop_0_1_12.default = (f.nodrop_0_1_12.default or false);
-  }) [ nodrop_0_1_12_features ];
-  askama_0_6_4 = { features?(askama_0_6_4_features {}) }: askama_0_6_4_ {
-    dependencies = mapFeatures features ([ askama_derive_0_6_4 askama_shared_0_6_2 ]);
-    features = mkFeatures (features.askama_0_6_4 or {});
-  };
-  askama_0_6_4_features = f: updateFeatures f (rec {
-    askama_0_6_4.default = (f.askama_0_6_4.default or true);
-    askama_0_6_4.iron =
-      (f.askama_0_6_4.iron or false) ||
-      (f.askama_0_6_4."with-iron" or false) ||
-      (askama_0_6_4."with-iron" or false);
-    askama_0_6_4.rocket =
-      (f.askama_0_6_4.rocket or false) ||
-      (f.askama_0_6_4."with-rocket" or false) ||
-      (askama_0_6_4."with-rocket" or false);
-    askama_derive_0_6_4.default = true;
-    askama_derive_0_6_4.iron =
-      (f.askama_derive_0_6_4.iron or false) ||
-      (askama_0_6_4."with-iron" or false) ||
-      (f.askama_0_6_4."with-iron" or false);
-    askama_derive_0_6_4.rocket =
-      (f.askama_derive_0_6_4.rocket or false) ||
-      (askama_0_6_4."with-rocket" or false) ||
-      (f.askama_0_6_4."with-rocket" or false);
-    askama_shared_0_6_2."serde-json" =
-      (f.askama_shared_0_6_2."serde-json" or false) ||
-      (askama_0_6_4."serde-json" or false) ||
-      (f.askama_0_6_4."serde-json" or false);
-    askama_shared_0_6_2.default = true;
-  }) [ askama_derive_0_6_4_features askama_shared_0_6_2_features ];
-  askama_derive_0_6_4 = { features?(askama_derive_0_6_4_features {}) }: askama_derive_0_6_4_ {
-    dependencies = mapFeatures features ([ askama_shared_0_6_2 nom_3_2_1 quote_0_5_2 syn_0_13_11 ]);
-    features = mkFeatures (features.askama_derive_0_6_4 or {});
-  };
-  askama_derive_0_6_4_features = f: updateFeatures f (rec {
-    askama_derive_0_6_4.default = (f.askama_derive_0_6_4.default or true);
-    askama_shared_0_6_2.default = true;
-    askama_shared_0_6_2.iron =
-      (f.askama_shared_0_6_2.iron or false) ||
-      (askama_derive_0_6_4.iron or false) ||
-      (f.askama_derive_0_6_4.iron or false);
-    askama_shared_0_6_2.rocket =
-      (f.askama_shared_0_6_2.rocket or false) ||
-      (askama_derive_0_6_4.rocket or false) ||
-      (f.askama_derive_0_6_4.rocket or false);
-    nom_3_2_1.default = true;
-    quote_0_5_2.default = true;
-    syn_0_13_11.default = true;
-  }) [ askama_shared_0_6_2_features nom_3_2_1_features quote_0_5_2_features syn_0_13_11_features ];
-  askama_shared_0_6_2 = { features?(askama_shared_0_6_2_features {}) }: askama_shared_0_6_2_ {
-    dependencies = mapFeatures features ([ error_chain_0_11_0 ]);
-    features = mkFeatures (features.askama_shared_0_6_2 or {});
-  };
-  askama_shared_0_6_2_features = f: updateFeatures f (rec {
-    askama_shared_0_6_2.default = (f.askama_shared_0_6_2.default or true);
-    askama_shared_0_6_2.serde =
-      (f.askama_shared_0_6_2.serde or false) ||
-      (f.askama_shared_0_6_2."serde-json" or false) ||
-      (askama_shared_0_6_2."serde-json" or false);
-    askama_shared_0_6_2.serde_json =
-      (f.askama_shared_0_6_2.serde_json or false) ||
-      (f.askama_shared_0_6_2."serde-json" or false) ||
-      (askama_shared_0_6_2."serde-json" or false);
-    error_chain_0_11_0.default = true;
-  }) [ error_chain_0_11_0_features ];
-  atty_0_2_10 = { features?(atty_0_2_10_features {}) }: atty_0_2_10_ {
-    dependencies = (if kernel == "redox" then mapFeatures features ([ termion_1_5_1 ]) else [])
-      ++ (if (kernel == "linux" || kernel == "darwin") then mapFeatures features ([ libc_0_2_41 ]) else [])
-      ++ (if kernel == "windows" then mapFeatures features ([ winapi_0_3_4 ]) else []);
-  };
-  atty_0_2_10_features = f: updateFeatures f (rec {
-    atty_0_2_10.default = (f.atty_0_2_10.default or true);
-    libc_0_2_41.default = (f.libc_0_2_41.default or false);
-    termion_1_5_1.default = true;
-    winapi_0_3_4.consoleapi = true;
-    winapi_0_3_4.default = true;
-    winapi_0_3_4.minwinbase = true;
-    winapi_0_3_4.minwindef = true;
-    winapi_0_3_4.processenv = true;
-    winapi_0_3_4.winbase = true;
-  }) [ termion_1_5_1_features libc_0_2_41_features winapi_0_3_4_features ];
-  backtrace_0_2_3 = { features?(backtrace_0_2_3_features {}) }: backtrace_0_2_3_ {
-    dependencies = mapFeatures features ([ cfg_if_0_1_3 libc_0_2_41 rustc_demangle_0_1_8 ]
-      ++ (if features.backtrace_0_2_3."backtrace-sys" or false then [ backtrace_sys_0_1_16 ] else [])
-      ++ (if features.backtrace_0_2_3."dbghelp-sys" or false then [ dbghelp_sys_0_2_0 ] else [])
-      ++ (if features.backtrace_0_2_3."kernel32-sys" or false then [ kernel32_sys_0_2_2 ] else [])
-      ++ (if features.backtrace_0_2_3.winapi or false then [ winapi_0_2_8 ] else []));
-    buildDependencies = mapFeatures features ([]);
-    features = mkFeatures (features.backtrace_0_2_3 or {});
-  };
-  backtrace_0_2_3_features = f: updateFeatures f (rec {
-    backtrace_0_2_3."backtrace-sys" =
-      (f.backtrace_0_2_3."backtrace-sys" or false) ||
-      (f.backtrace_0_2_3.libbacktrace or false) ||
-      (backtrace_0_2_3.libbacktrace or false);
-    backtrace_0_2_3."dbghelp-sys" =
-      (f.backtrace_0_2_3."dbghelp-sys" or false) ||
-      (f.backtrace_0_2_3.dbghelp or false) ||
-      (backtrace_0_2_3.dbghelp or false);
-    backtrace_0_2_3."kernel32-sys" =
-      (f.backtrace_0_2_3."kernel32-sys" or false) ||
-      (f.backtrace_0_2_3.dbghelp or false) ||
-      (backtrace_0_2_3.dbghelp or false);
-    backtrace_0_2_3."rustc-serialize" =
-      (f.backtrace_0_2_3."rustc-serialize" or false) ||
-      (f.backtrace_0_2_3."serialize-rustc" or false) ||
-      (backtrace_0_2_3."serialize-rustc" or false);
-    backtrace_0_2_3.dbghelp =
-      (f.backtrace_0_2_3.dbghelp or false) ||
-      (f.backtrace_0_2_3.default or false) ||
-      (backtrace_0_2_3.default or false);
-    backtrace_0_2_3.default = (f.backtrace_0_2_3.default or true);
-    backtrace_0_2_3.dladdr =
-      (f.backtrace_0_2_3.dladdr or false) ||
-      (f.backtrace_0_2_3.default or false) ||
-      (backtrace_0_2_3.default or false);
-    backtrace_0_2_3.libbacktrace =
-      (f.backtrace_0_2_3.libbacktrace or false) ||
-      (f.backtrace_0_2_3.default or false) ||
-      (backtrace_0_2_3.default or false);
-    backtrace_0_2_3.libunwind =
-      (f.backtrace_0_2_3.libunwind or false) ||
-      (f.backtrace_0_2_3.default or false) ||
-      (backtrace_0_2_3.default or false);
-    backtrace_0_2_3.serde =
-      (f.backtrace_0_2_3.serde or false) ||
-      (f.backtrace_0_2_3."serialize-serde" or false) ||
-      (backtrace_0_2_3."serialize-serde" or false);
-    backtrace_0_2_3.serde_codegen =
-      (f.backtrace_0_2_3.serde_codegen or false) ||
-      (f.backtrace_0_2_3."serialize-serde" or false) ||
-      (backtrace_0_2_3."serialize-serde" or false);
-    backtrace_0_2_3.winapi =
-      (f.backtrace_0_2_3.winapi or false) ||
-      (f.backtrace_0_2_3.dbghelp or false) ||
-      (backtrace_0_2_3.dbghelp or false);
-    backtrace_sys_0_1_16.default = true;
-    cfg_if_0_1_3.default = true;
-    dbghelp_sys_0_2_0.default = true;
-    kernel32_sys_0_2_2.default = true;
-    libc_0_2_41.default = true;
-    rustc_demangle_0_1_8.default = true;
-    winapi_0_2_8.default = true;
-  }) [ backtrace_sys_0_1_16_features cfg_if_0_1_3_features dbghelp_sys_0_2_0_features kernel32_sys_0_2_2_features libc_0_2_41_features rustc_demangle_0_1_8_features winapi_0_2_8_features ];
-  backtrace_0_3_7 = { features?(backtrace_0_3_7_features {}) }: backtrace_0_3_7_ {
-    dependencies = mapFeatures features ([ cfg_if_0_1_3 rustc_demangle_0_1_8 ])
-      ++ (if (kernel == "linux" || kernel == "darwin") && !(kernel == "fuchsia") && !(kernel == "emscripten") && !(kernel == "darwin") && !(kernel == "ios") then mapFeatures features ([ ]
-      ++ (if features.backtrace_0_3_7."backtrace-sys" or false then [ backtrace_sys_0_1_16 ] else [])) else [])
-      ++ (if (kernel == "linux" || kernel == "darwin") then mapFeatures features ([ libc_0_2_41 ]) else [])
-      ++ (if kernel == "windows" then mapFeatures features ([ ]
-      ++ (if features.backtrace_0_3_7.winapi or false then [ winapi_0_3_4 ] else [])) else []);
-    features = mkFeatures (features.backtrace_0_3_7 or {});
-  };
-  backtrace_0_3_7_features = f: updateFeatures f (rec {
-    backtrace_0_3_7."addr2line" =
-      (f.backtrace_0_3_7."addr2line" or false) ||
-      (f.backtrace_0_3_7."gimli-symbolize" or false) ||
-      (backtrace_0_3_7."gimli-symbolize" or false);
-    backtrace_0_3_7."backtrace-sys" =
-      (f.backtrace_0_3_7."backtrace-sys" or false) ||
-      (f.backtrace_0_3_7.libbacktrace or false) ||
-      (backtrace_0_3_7.libbacktrace or false);
-    backtrace_0_3_7."rustc-serialize" =
-      (f.backtrace_0_3_7."rustc-serialize" or false) ||
-      (f.backtrace_0_3_7."serialize-rustc" or false) ||
-      (backtrace_0_3_7."serialize-rustc" or false);
-    backtrace_0_3_7.coresymbolication =
-      (f.backtrace_0_3_7.coresymbolication or false) ||
-      (f.backtrace_0_3_7.default or false) ||
-      (backtrace_0_3_7.default or false);
-    backtrace_0_3_7.dbghelp =
-      (f.backtrace_0_3_7.dbghelp or false) ||
-      (f.backtrace_0_3_7.default or false) ||
-      (backtrace_0_3_7.default or false);
-    backtrace_0_3_7.default = (f.backtrace_0_3_7.default or true);
-    backtrace_0_3_7.dladdr =
-      (f.backtrace_0_3_7.dladdr or false) ||
-      (f.backtrace_0_3_7.default or false) ||
-      (backtrace_0_3_7.default or false);
-    backtrace_0_3_7.findshlibs =
-      (f.backtrace_0_3_7.findshlibs or false) ||
-      (f.backtrace_0_3_7."gimli-symbolize" or false) ||
-      (backtrace_0_3_7."gimli-symbolize" or false);
-    backtrace_0_3_7.gimli =
-      (f.backtrace_0_3_7.gimli or false) ||
-      (f.backtrace_0_3_7."gimli-symbolize" or false) ||
-      (backtrace_0_3_7."gimli-symbolize" or false);
-    backtrace_0_3_7.libbacktrace =
-      (f.backtrace_0_3_7.libbacktrace or false) ||
-      (f.backtrace_0_3_7.default or false) ||
-      (backtrace_0_3_7.default or false);
-    backtrace_0_3_7.libunwind =
-      (f.backtrace_0_3_7.libunwind or false) ||
-      (f.backtrace_0_3_7.default or false) ||
-      (backtrace_0_3_7.default or false);
-    backtrace_0_3_7.memmap =
-      (f.backtrace_0_3_7.memmap or false) ||
-      (f.backtrace_0_3_7."gimli-symbolize" or false) ||
-      (backtrace_0_3_7."gimli-symbolize" or false);
-    backtrace_0_3_7.object =
-      (f.backtrace_0_3_7.object or false) ||
-      (f.backtrace_0_3_7."gimli-symbolize" or false) ||
-      (backtrace_0_3_7."gimli-symbolize" or false);
-    backtrace_0_3_7.serde =
-      (f.backtrace_0_3_7.serde or false) ||
-      (f.backtrace_0_3_7."serialize-serde" or false) ||
-      (backtrace_0_3_7."serialize-serde" or false);
-    backtrace_0_3_7.serde_derive =
-      (f.backtrace_0_3_7.serde_derive or false) ||
-      (f.backtrace_0_3_7."serialize-serde" or false) ||
-      (backtrace_0_3_7."serialize-serde" or false);
-    backtrace_0_3_7.winapi =
-      (f.backtrace_0_3_7.winapi or false) ||
-      (f.backtrace_0_3_7.dbghelp or false) ||
-      (backtrace_0_3_7.dbghelp or false);
-    backtrace_sys_0_1_16.default = true;
-    cfg_if_0_1_3.default = true;
-    libc_0_2_41.default = true;
-    rustc_demangle_0_1_8.default = true;
-    winapi_0_3_4.dbghelp = true;
-    winapi_0_3_4.default = true;
-    winapi_0_3_4.minwindef = true;
-    winapi_0_3_4.processthreadsapi = true;
-    winapi_0_3_4.std = true;
-    winapi_0_3_4.winnt = true;
-  }) [ cfg_if_0_1_3_features rustc_demangle_0_1_8_features backtrace_sys_0_1_16_features libc_0_2_41_features winapi_0_3_4_features ];
-  backtrace_sys_0_1_16 = { features?(backtrace_sys_0_1_16_features {}) }: backtrace_sys_0_1_16_ {
-    dependencies = mapFeatures features ([ libc_0_2_41 ]);
-    buildDependencies = mapFeatures features ([ cc_1_0_15 ]);
-  };
-  backtrace_sys_0_1_16_features = f: updateFeatures f (rec {
-    backtrace_sys_0_1_16.default = (f.backtrace_sys_0_1_16.default or true);
-    cc_1_0_15.default = true;
-    libc_0_2_41.default = true;
-  }) [ libc_0_2_41_features cc_1_0_15_features ];
-  base64_0_6_0 = { features?(base64_0_6_0_features {}) }: base64_0_6_0_ {
-    dependencies = mapFeatures features ([ byteorder_1_2_3 safemem_0_2_0 ]);
-  };
-  base64_0_6_0_features = f: updateFeatures f (rec {
-    base64_0_6_0.default = (f.base64_0_6_0.default or true);
-    byteorder_1_2_3.default = true;
-    safemem_0_2_0.default = true;
-  }) [ byteorder_1_2_3_features safemem_0_2_0_features ];
-  base64_0_9_1 = { features?(base64_0_9_1_features {}) }: base64_0_9_1_ {
-    dependencies = mapFeatures features ([ byteorder_1_2_3 safemem_0_2_0 ]);
-  };
-  base64_0_9_1_features = f: updateFeatures f (rec {
-    base64_0_9_1.default = (f.base64_0_9_1.default or true);
-    byteorder_1_2_3.default = true;
-    safemem_0_2_0.default = true;
-  }) [ byteorder_1_2_3_features safemem_0_2_0_features ];
-  bitflags_0_9_1 = { features?(bitflags_0_9_1_features {}) }: bitflags_0_9_1_ {
-    features = mkFeatures (features.bitflags_0_9_1 or {});
-  };
-  bitflags_0_9_1_features = f: updateFeatures f (rec {
-    bitflags_0_9_1.default = (f.bitflags_0_9_1.default or true);
-    bitflags_0_9_1.example_generated =
-      (f.bitflags_0_9_1.example_generated or false) ||
-      (f.bitflags_0_9_1.default or false) ||
-      (bitflags_0_9_1.default or false);
-  }) [];
-  bitflags_1_0_3 = { features?(bitflags_1_0_3_features {}) }: bitflags_1_0_3_ {
-    features = mkFeatures (features.bitflags_1_0_3 or {});
-  };
-  bitflags_1_0_3_features = f: updateFeatures f (rec {
-    bitflags_1_0_3.default = (f.bitflags_1_0_3.default or true);
-  }) [];
-  brotli_sys_0_3_2 = { features?(brotli_sys_0_3_2_features {}) }: brotli_sys_0_3_2_ {
-    dependencies = mapFeatures features ([ libc_0_2_41 ]);
-    buildDependencies = mapFeatures features ([ cc_1_0_15 ]);
-  };
-  brotli_sys_0_3_2_features = f: updateFeatures f (rec {
-    brotli_sys_0_3_2.default = (f.brotli_sys_0_3_2.default or true);
-    cc_1_0_15.default = true;
-    libc_0_2_41.default = true;
-  }) [ libc_0_2_41_features cc_1_0_15_features ];
-  brotli2_0_3_2 = { features?(brotli2_0_3_2_features {}) }: brotli2_0_3_2_ {
-    dependencies = mapFeatures features ([ brotli_sys_0_3_2 libc_0_2_41 ]);
-  };
-  brotli2_0_3_2_features = f: updateFeatures f (rec {
-    brotli2_0_3_2.default = (f.brotli2_0_3_2.default or true);
-    brotli_sys_0_3_2.default = true;
-    libc_0_2_41.default = true;
-  }) [ brotli_sys_0_3_2_features libc_0_2_41_features ];
-  build_const_0_2_1 = { features?(build_const_0_2_1_features {}) }: build_const_0_2_1_ {
-    features = mkFeatures (features.build_const_0_2_1 or {});
-  };
-  build_const_0_2_1_features = f: updateFeatures f (rec {
-    build_const_0_2_1.default = (f.build_const_0_2_1.default or true);
-    build_const_0_2_1.std =
-      (f.build_const_0_2_1.std or false) ||
-      (f.build_const_0_2_1.default or false) ||
-      (build_const_0_2_1.default or false);
-  }) [];
-  bytecount_0_3_1 = { features?(bytecount_0_3_1_features {}) }: bytecount_0_3_1_ {
-    dependencies = mapFeatures features ([]);
-    features = mkFeatures (features.bytecount_0_3_1 or {});
-  };
-  bytecount_0_3_1_features = f: updateFeatures f (rec {
-    bytecount_0_3_1."simd-accel" =
-      (f.bytecount_0_3_1."simd-accel" or false) ||
-      (f.bytecount_0_3_1."avx-accel" or false) ||
-      (bytecount_0_3_1."avx-accel" or false);
-    bytecount_0_3_1.default = (f.bytecount_0_3_1.default or true);
-    bytecount_0_3_1.simd =
-      (f.bytecount_0_3_1.simd or false) ||
-      (f.bytecount_0_3_1."simd-accel" or false) ||
-      (bytecount_0_3_1."simd-accel" or false);
-  }) [];
-  byteorder_1_2_3 = { features?(byteorder_1_2_3_features {}) }: byteorder_1_2_3_ {
-    features = mkFeatures (features.byteorder_1_2_3 or {});
-  };
-  byteorder_1_2_3_features = f: updateFeatures f (rec {
-    byteorder_1_2_3.default = (f.byteorder_1_2_3.default or true);
-    byteorder_1_2_3.std =
-      (f.byteorder_1_2_3.std or false) ||
-      (f.byteorder_1_2_3.default or false) ||
-      (byteorder_1_2_3.default or false);
-  }) [];
-  bytes_0_4_7 = { features?(bytes_0_4_7_features {}) }: bytes_0_4_7_ {
-    dependencies = mapFeatures features ([ byteorder_1_2_3 iovec_0_1_2 ]);
-  };
-  bytes_0_4_7_features = f: updateFeatures f (rec {
-    byteorder_1_2_3.default = true;
-    bytes_0_4_7.default = (f.bytes_0_4_7.default or true);
-    iovec_0_1_2.default = true;
-  }) [ byteorder_1_2_3_features iovec_0_1_2_features ];
-  cargo_metadata_0_5_4 = { features?(cargo_metadata_0_5_4_features {}) }: cargo_metadata_0_5_4_ {
-    dependencies = mapFeatures features ([ error_chain_0_11_0 semver_0_9_0 serde_1_0_59 serde_derive_1_0_59 serde_json_1_0_17 ]);
-  };
-  cargo_metadata_0_5_4_features = f: updateFeatures f (rec {
-    cargo_metadata_0_5_4.default = (f.cargo_metadata_0_5_4.default or true);
-    error_chain_0_11_0.default = true;
-    semver_0_9_0.default = true;
-    semver_0_9_0.serde = true;
-    serde_1_0_59.default = true;
-    serde_derive_1_0_59.default = true;
-    serde_json_1_0_17.default = true;
-  }) [ error_chain_0_11_0_features semver_0_9_0_features serde_1_0_59_features serde_derive_1_0_59_features serde_json_1_0_17_features ];
-  cc_1_0_15 = { features?(cc_1_0_15_features {}) }: cc_1_0_15_ {
-    dependencies = mapFeatures features ([]);
-    features = mkFeatures (features.cc_1_0_15 or {});
-  };
-  cc_1_0_15_features = f: updateFeatures f (rec {
-    cc_1_0_15.default = (f.cc_1_0_15.default or true);
-    cc_1_0_15.rayon =
-      (f.cc_1_0_15.rayon or false) ||
-      (f.cc_1_0_15.parallel or false) ||
-      (cc_1_0_15.parallel or false);
-  }) [];
-  cfg_if_0_1_3 = { features?(cfg_if_0_1_3_features {}) }: cfg_if_0_1_3_ {};
-  cfg_if_0_1_3_features = f: updateFeatures f (rec {
-    cfg_if_0_1_3.default = (f.cfg_if_0_1_3.default or true);
-  }) [];
-  chrono_0_4_2 = { features?(chrono_0_4_2_features {}) }: chrono_0_4_2_ {
-    dependencies = mapFeatures features ([ num_integer_0_1_38 num_traits_0_2_4 ]
-      ++ (if features.chrono_0_4_2.serde or false then [ serde_1_0_59 ] else [])
-      ++ (if features.chrono_0_4_2.time or false then [ time_0_1_40 ] else []));
-    features = mkFeatures (features.chrono_0_4_2 or {});
-  };
-  chrono_0_4_2_features = f: updateFeatures f (rec {
-    chrono_0_4_2.clock =
-      (f.chrono_0_4_2.clock or false) ||
-      (f.chrono_0_4_2.default or false) ||
-      (chrono_0_4_2.default or false);
-    chrono_0_4_2.default = (f.chrono_0_4_2.default or true);
-    chrono_0_4_2.time =
-      (f.chrono_0_4_2.time or false) ||
-      (f.chrono_0_4_2.clock or false) ||
-      (chrono_0_4_2.clock or false);
-    num_integer_0_1_38.default = (f.num_integer_0_1_38.default or false);
-    num_traits_0_2_4.default = (f.num_traits_0_2_4.default or false);
-    serde_1_0_59.default = true;
-    time_0_1_40.default = true;
-  }) [ num_integer_0_1_38_features num_traits_0_2_4_features serde_1_0_59_features time_0_1_40_features ];
-  clap_2_31_2 = { features?(clap_2_31_2_features {}) }: clap_2_31_2_ {
-    dependencies = mapFeatures features ([ bitflags_1_0_3 textwrap_0_9_0 unicode_width_0_1_5 ]
-      ++ (if features.clap_2_31_2.atty or false then [ atty_0_2_10 ] else [])
-      ++ (if features.clap_2_31_2.strsim or false then [ strsim_0_7_0 ] else [])
-      ++ (if features.clap_2_31_2.vec_map or false then [ vec_map_0_8_1 ] else []))
-      ++ (if !(kernel == "windows") then mapFeatures features ([ ]
-      ++ (if features.clap_2_31_2.ansi_term or false then [ ansi_term_0_11_0 ] else [])) else []);
-    features = mkFeatures (features.clap_2_31_2 or {});
-  };
-  clap_2_31_2_features = f: updateFeatures f (rec {
-    ansi_term_0_11_0.default = true;
-    atty_0_2_10.default = true;
-    bitflags_1_0_3.default = true;
-    clap_2_31_2."yaml-rust" =
-      (f.clap_2_31_2."yaml-rust" or false) ||
-      (f.clap_2_31_2.yaml or false) ||
-      (clap_2_31_2.yaml or false);
-    clap_2_31_2.ansi_term =
-      (f.clap_2_31_2.ansi_term or false) ||
-      (f.clap_2_31_2.color or false) ||
-      (clap_2_31_2.color or false);
-    clap_2_31_2.atty =
-      (f.clap_2_31_2.atty or false) ||
-      (f.clap_2_31_2.color or false) ||
-      (clap_2_31_2.color or false);
-    clap_2_31_2.clippy =
-      (f.clap_2_31_2.clippy or false) ||
-      (f.clap_2_31_2.lints or false) ||
-      (clap_2_31_2.lints or false);
-    clap_2_31_2.color =
-      (f.clap_2_31_2.color or false) ||
-      (f.clap_2_31_2.default or false) ||
-      (clap_2_31_2.default or false);
-    clap_2_31_2.default = (f.clap_2_31_2.default or true);
-    clap_2_31_2.strsim =
-      (f.clap_2_31_2.strsim or false) ||
-      (f.clap_2_31_2.suggestions or false) ||
-      (clap_2_31_2.suggestions or false);
-    clap_2_31_2.suggestions =
-      (f.clap_2_31_2.suggestions or false) ||
-      (f.clap_2_31_2.default or false) ||
-      (clap_2_31_2.default or false);
-    clap_2_31_2.term_size =
-      (f.clap_2_31_2.term_size or false) ||
-      (f.clap_2_31_2.wrap_help or false) ||
-      (clap_2_31_2.wrap_help or false);
-    clap_2_31_2.vec_map =
-      (f.clap_2_31_2.vec_map or false) ||
-      (f.clap_2_31_2.default or false) ||
-      (clap_2_31_2.default or false);
-    clap_2_31_2.yaml =
-      (f.clap_2_31_2.yaml or false) ||
-      (f.clap_2_31_2.doc or false) ||
-      (clap_2_31_2.doc or false);
-    strsim_0_7_0.default = true;
-    textwrap_0_9_0.default = true;
-    textwrap_0_9_0.term_size =
-      (f.textwrap_0_9_0.term_size or false) ||
-      (clap_2_31_2.wrap_help or false) ||
-      (f.clap_2_31_2.wrap_help or false);
-    unicode_width_0_1_5.default = true;
-    vec_map_0_8_1.default = true;
-  }) [ atty_0_2_10_features bitflags_1_0_3_features strsim_0_7_0_features textwrap_0_9_0_features unicode_width_0_1_5_features vec_map_0_8_1_features ansi_term_0_11_0_features ];
-  comrak_0_2_12 = { features?(comrak_0_2_12_features {}) }: (comrak_0_2_12_ {
-    dependencies = mapFeatures features ([ entities_1_0_1 lazy_static_1_0_0 pest_1_0_6 pest_derive_1_0_7 regex_0_2_11 twoway_0_1_8 typed_arena_1_3_0 unicode_categories_0_1_1 ]
-      ++ (if features.comrak_0_2_12.clap or false then [ clap_2_31_2 ] else []));
-    features = mkFeatures (features.comrak_0_2_12 or {});
-  }).overrideAttrs (oldAttrs: rec { CARGO_PKG_DESCRIPTION = "dummy"; });
-  comrak_0_2_12_features = f: updateFeatures f (rec {
-    clap_2_31_2.default = true;
-    comrak_0_2_12.clap =
-      (f.comrak_0_2_12.clap or false) ||
-      (f.comrak_0_2_12.default or false) ||
-      (comrak_0_2_12.default or false);
-    comrak_0_2_12.default = (f.comrak_0_2_12.default or true);
-    entities_1_0_1.default = true;
-    lazy_static_1_0_0.default = true;
-    pest_1_0_6.default = true;
-    pest_derive_1_0_7.default = true;
-    regex_0_2_11.default = true;
-    twoway_0_1_8.default = true;
-    typed_arena_1_3_0.default = true;
-    unicode_categories_0_1_1.default = true;
-  }) [ clap_2_31_2_features entities_1_0_1_features lazy_static_1_0_0_features pest_1_0_6_features pest_derive_1_0_7_features regex_0_2_11_features twoway_0_1_8_features typed_arena_1_3_0_features unicode_categories_0_1_1_features ];
-  converse_0_1_0 = { features?(converse_0_1_0_features {}) }: converse_0_1_0_ {
-    dependencies = mapFeatures features ([ actix_0_5_7 actix_web_0_6_9 askama_0_6_4 chrono_0_4_2 comrak_0_2_12 diesel_1_2_2 env_logger_0_5_10 failure_0_1_1 futures_0_1_21 hyper_0_11_27 log_0_4_1 md5_0_3_7 mime_guess_2_0_0_alpha_4 pq_sys_0_4_4 r2d2_0_8_2 rand_0_4_2 reqwest_0_8_5 serde_1_0_59 serde_derive_1_0_59 serde_json_1_0_17 tokio_0_1_6 tokio_timer_0_2_3 url_1_7_0 url_serde_0_2_0 ]);
-    buildDependencies = mapFeatures features ([ askama_0_6_4 pulldown_cmark_0_1_2 ]);
-  };
-  converse_0_1_0_features = f: updateFeatures f (rec {
-    actix_0_5_7.default = true;
-    actix_web_0_6_9.default = true;
-    askama_0_6_4.default = true;
-    chrono_0_4_2.default = true;
-    chrono_0_4_2.serde = true;
-    comrak_0_2_12.default = true;
-    converse_0_1_0.default = (f.converse_0_1_0.default or true);
-    diesel_1_2_2."r2d2" = true;
-    diesel_1_2_2.chrono = true;
-    diesel_1_2_2.default = true;
-    diesel_1_2_2.postgres = true;
-    env_logger_0_5_10.default = true;
-    failure_0_1_1.default = true;
-    futures_0_1_21.default = true;
-    hyper_0_11_27.default = true;
-    log_0_4_1.default = true;
-    md5_0_3_7.default = true;
-    mime_guess_2_0_0_alpha_4.default = true;
-    pq_sys_0_4_4.default = true;
-    pulldown_cmark_0_1_2.default = true;
-    r2d2_0_8_2.default = true;
-    rand_0_4_2.default = true;
-    reqwest_0_8_5.default = true;
-    serde_1_0_59.default = true;
-    serde_derive_1_0_59.default = true;
-    serde_json_1_0_17.default = true;
-    tokio_0_1_6.default = true;
-    tokio_timer_0_2_3.default = true;
-    url_1_7_0.default = true;
-    url_serde_0_2_0.default = true;
-  }) [ actix_0_5_7_features actix_web_0_6_9_features askama_0_6_4_features chrono_0_4_2_features comrak_0_2_12_features diesel_1_2_2_features env_logger_0_5_10_features failure_0_1_1_features futures_0_1_21_features hyper_0_11_27_features log_0_4_1_features md5_0_3_7_features mime_guess_2_0_0_alpha_4_features pq_sys_0_4_4_features r2d2_0_8_2_features rand_0_4_2_features reqwest_0_8_5_features serde_1_0_59_features serde_derive_1_0_59_features serde_json_1_0_17_features tokio_0_1_6_features tokio_timer_0_2_3_features url_1_7_0_features url_serde_0_2_0_features askama_0_6_4_features pulldown_cmark_0_1_2_features ];
-  cookie_0_10_1 = { features?(cookie_0_10_1_features {}) }: cookie_0_10_1_ {
-    dependencies = mapFeatures features ([ time_0_1_40 ]
-      ++ (if features.cookie_0_10_1."base64" or false then [ base64_0_6_0 ] else [])
-      ++ (if features.cookie_0_10_1.ring or false then [ ring_0_12_1 ] else [])
-      ++ (if features.cookie_0_10_1.url or false then [ url_1_7_0 ] else []));
-    features = mkFeatures (features.cookie_0_10_1 or {});
-  };
-  cookie_0_10_1_features = f: updateFeatures f (rec {
-    base64_0_6_0.default = true;
-    cookie_0_10_1."base64" =
-      (f.cookie_0_10_1."base64" or false) ||
-      (f.cookie_0_10_1.secure or false) ||
-      (cookie_0_10_1.secure or false);
-    cookie_0_10_1.default = (f.cookie_0_10_1.default or true);
-    cookie_0_10_1.ring =
-      (f.cookie_0_10_1.ring or false) ||
-      (f.cookie_0_10_1.secure or false) ||
-      (cookie_0_10_1.secure or false);
-    cookie_0_10_1.url =
-      (f.cookie_0_10_1.url or false) ||
-      (f.cookie_0_10_1."percent-encode" or false) ||
-      (cookie_0_10_1."percent-encode" or false);
-    ring_0_12_1.default = true;
-    time_0_1_40.default = true;
-    url_1_7_0.default = true;
-  }) [ base64_0_6_0_features ring_0_12_1_features time_0_1_40_features url_1_7_0_features ];
-  core_foundation_0_2_3 = { features?(core_foundation_0_2_3_features {}) }: core_foundation_0_2_3_ {
-    dependencies = mapFeatures features ([ core_foundation_sys_0_2_3 libc_0_2_41 ]);
-  };
-  core_foundation_0_2_3_features = f: updateFeatures f (rec {
-    core_foundation_0_2_3.default = (f.core_foundation_0_2_3.default or true);
-    core_foundation_sys_0_2_3.default = true;
-    libc_0_2_41.default = true;
-  }) [ core_foundation_sys_0_2_3_features libc_0_2_41_features ];
-  core_foundation_sys_0_2_3 = { features?(core_foundation_sys_0_2_3_features {}) }: core_foundation_sys_0_2_3_ {
-    dependencies = mapFeatures features ([ libc_0_2_41 ]);
-  };
-  core_foundation_sys_0_2_3_features = f: updateFeatures f (rec {
-    core_foundation_sys_0_2_3.default = (f.core_foundation_sys_0_2_3.default or true);
-    libc_0_2_41.default = true;
-  }) [ libc_0_2_41_features ];
-  crc_1_8_1 = { features?(crc_1_8_1_features {}) }: crc_1_8_1_ {
-    buildDependencies = mapFeatures features ([ build_const_0_2_1 ]);
-    features = mkFeatures (features.crc_1_8_1 or {});
-  };
-  crc_1_8_1_features = f: updateFeatures f (rec {
-    build_const_0_2_1.default = true;
-    crc_1_8_1.default = (f.crc_1_8_1.default or true);
-    crc_1_8_1.std =
-      (f.crc_1_8_1.std or false) ||
-      (f.crc_1_8_1.default or false) ||
-      (crc_1_8_1.default or false);
-  }) [ build_const_0_2_1_features ];
-  crossbeam_channel_0_1_2 = { features?(crossbeam_channel_0_1_2_features {}) }: crossbeam_channel_0_1_2_ {
-    dependencies = mapFeatures features ([ crossbeam_epoch_0_2_0 crossbeam_utils_0_2_2 parking_lot_0_4_8 ]);
-    features = mkFeatures (features.crossbeam_channel_0_1_2 or {});
-  };
-  crossbeam_channel_0_1_2_features = f: updateFeatures f (rec {
-    crossbeam_channel_0_1_2.default = (f.crossbeam_channel_0_1_2.default or true);
-    crossbeam_epoch_0_2_0.default = true;
-    crossbeam_utils_0_2_2.default = true;
-    parking_lot_0_4_8.default = true;
-  }) [ crossbeam_epoch_0_2_0_features crossbeam_utils_0_2_2_features parking_lot_0_4_8_features ];
-  crossbeam_deque_0_2_0 = { features?(crossbeam_deque_0_2_0_features {}) }: crossbeam_deque_0_2_0_ {
-    dependencies = mapFeatures features ([ crossbeam_epoch_0_3_1 crossbeam_utils_0_2_2 ]);
-  };
-  crossbeam_deque_0_2_0_features = f: updateFeatures f (rec {
-    crossbeam_deque_0_2_0.default = (f.crossbeam_deque_0_2_0.default or true);
-    crossbeam_epoch_0_3_1.default = true;
-    crossbeam_utils_0_2_2.default = true;
-  }) [ crossbeam_epoch_0_3_1_features crossbeam_utils_0_2_2_features ];
-  crossbeam_deque_0_3_1 = { features?(crossbeam_deque_0_3_1_features {}) }: crossbeam_deque_0_3_1_ {
-    dependencies = mapFeatures features ([ crossbeam_epoch_0_4_1 crossbeam_utils_0_3_2 ]);
-  };
-  crossbeam_deque_0_3_1_features = f: updateFeatures f (rec {
-    crossbeam_deque_0_3_1.default = (f.crossbeam_deque_0_3_1.default or true);
-    crossbeam_epoch_0_4_1.default = true;
-    crossbeam_utils_0_3_2.default = true;
-  }) [ crossbeam_epoch_0_4_1_features crossbeam_utils_0_3_2_features ];
-  crossbeam_epoch_0_2_0 = { features?(crossbeam_epoch_0_2_0_features {}) }: crossbeam_epoch_0_2_0_ {
-    dependencies = mapFeatures features ([ arrayvec_0_4_7 cfg_if_0_1_3 crossbeam_utils_0_2_2 memoffset_0_1_0 scopeguard_0_3_3 ]
-      ++ (if features.crossbeam_epoch_0_2_0.lazy_static or false then [ lazy_static_0_2_11 ] else []));
-    features = mkFeatures (features.crossbeam_epoch_0_2_0 or {});
-  };
-  crossbeam_epoch_0_2_0_features = f: updateFeatures f (rec {
-    arrayvec_0_4_7.default = (f.arrayvec_0_4_7.default or false);
-    arrayvec_0_4_7.use_union =
-      (f.arrayvec_0_4_7.use_union or false) ||
-      (crossbeam_epoch_0_2_0.nightly or false) ||
-      (f.crossbeam_epoch_0_2_0.nightly or false);
-    cfg_if_0_1_3.default = true;
-    crossbeam_epoch_0_2_0.default = (f.crossbeam_epoch_0_2_0.default or true);
-    crossbeam_epoch_0_2_0.lazy_static =
-      (f.crossbeam_epoch_0_2_0.lazy_static or false) ||
-      (f.crossbeam_epoch_0_2_0.use_std or false) ||
-      (crossbeam_epoch_0_2_0.use_std or false);
-    crossbeam_epoch_0_2_0.use_std =
-      (f.crossbeam_epoch_0_2_0.use_std or false) ||
-      (f.crossbeam_epoch_0_2_0.default or false) ||
-      (crossbeam_epoch_0_2_0.default or false);
-    crossbeam_utils_0_2_2.default = (f.crossbeam_utils_0_2_2.default or false);
-    crossbeam_utils_0_2_2.use_std =
-      (f.crossbeam_utils_0_2_2.use_std or false) ||
-      (crossbeam_epoch_0_2_0.use_std or false) ||
-      (f.crossbeam_epoch_0_2_0.use_std or false);
-    lazy_static_0_2_11.default = true;
-    memoffset_0_1_0.default = (f.memoffset_0_1_0.default or false);
-    scopeguard_0_3_3.default = (f.scopeguard_0_3_3.default or false);
-  }) [ arrayvec_0_4_7_features cfg_if_0_1_3_features crossbeam_utils_0_2_2_features lazy_static_0_2_11_features memoffset_0_1_0_features scopeguard_0_3_3_features ];
-  crossbeam_epoch_0_3_1 = { features?(crossbeam_epoch_0_3_1_features {}) }: crossbeam_epoch_0_3_1_ {
-    dependencies = mapFeatures features ([ arrayvec_0_4_7 cfg_if_0_1_3 crossbeam_utils_0_2_2 memoffset_0_2_1 nodrop_0_1_12 scopeguard_0_3_3 ]
-      ++ (if features.crossbeam_epoch_0_3_1.lazy_static or false then [ lazy_static_1_0_0 ] else []));
-    features = mkFeatures (features.crossbeam_epoch_0_3_1 or {});
-  };
-  crossbeam_epoch_0_3_1_features = f: updateFeatures f (rec {
-    arrayvec_0_4_7.default = (f.arrayvec_0_4_7.default or false);
-    arrayvec_0_4_7.use_union =
-      (f.arrayvec_0_4_7.use_union or false) ||
-      (crossbeam_epoch_0_3_1.nightly or false) ||
-      (f.crossbeam_epoch_0_3_1.nightly or false);
-    cfg_if_0_1_3.default = true;
-    crossbeam_epoch_0_3_1.default = (f.crossbeam_epoch_0_3_1.default or true);
-    crossbeam_epoch_0_3_1.lazy_static =
-      (f.crossbeam_epoch_0_3_1.lazy_static or false) ||
-      (f.crossbeam_epoch_0_3_1.use_std or false) ||
-      (crossbeam_epoch_0_3_1.use_std or false);
-    crossbeam_epoch_0_3_1.use_std =
-      (f.crossbeam_epoch_0_3_1.use_std or false) ||
-      (f.crossbeam_epoch_0_3_1.default or false) ||
-      (crossbeam_epoch_0_3_1.default or false);
-    crossbeam_utils_0_2_2.default = (f.crossbeam_utils_0_2_2.default or false);
-    crossbeam_utils_0_2_2.use_std =
-      (f.crossbeam_utils_0_2_2.use_std or false) ||
-      (crossbeam_epoch_0_3_1.use_std or false) ||
-      (f.crossbeam_epoch_0_3_1.use_std or false);
-    lazy_static_1_0_0.default = true;
-    memoffset_0_2_1.default = true;
-    nodrop_0_1_12.default = (f.nodrop_0_1_12.default or false);
-    scopeguard_0_3_3.default = (f.scopeguard_0_3_3.default or false);
-  }) [ arrayvec_0_4_7_features cfg_if_0_1_3_features crossbeam_utils_0_2_2_features lazy_static_1_0_0_features memoffset_0_2_1_features nodrop_0_1_12_features scopeguard_0_3_3_features ];
-  crossbeam_epoch_0_4_1 = { features?(crossbeam_epoch_0_4_1_features {}) }: crossbeam_epoch_0_4_1_ {
-    dependencies = mapFeatures features ([ arrayvec_0_4_7 cfg_if_0_1_3 crossbeam_utils_0_3_2 memoffset_0_2_1 scopeguard_0_3_3 ]
-      ++ (if features.crossbeam_epoch_0_4_1.lazy_static or false then [ lazy_static_1_0_0 ] else []));
-    features = mkFeatures (features.crossbeam_epoch_0_4_1 or {});
-  };
-  crossbeam_epoch_0_4_1_features = f: updateFeatures f (rec {
-    arrayvec_0_4_7.default = (f.arrayvec_0_4_7.default or false);
-    arrayvec_0_4_7.use_union =
-      (f.arrayvec_0_4_7.use_union or false) ||
-      (crossbeam_epoch_0_4_1.nightly or false) ||
-      (f.crossbeam_epoch_0_4_1.nightly or false);
-    cfg_if_0_1_3.default = true;
-    crossbeam_epoch_0_4_1.default = (f.crossbeam_epoch_0_4_1.default or true);
-    crossbeam_epoch_0_4_1.lazy_static =
-      (f.crossbeam_epoch_0_4_1.lazy_static or false) ||
-      (f.crossbeam_epoch_0_4_1.use_std or false) ||
-      (crossbeam_epoch_0_4_1.use_std or false);
-    crossbeam_epoch_0_4_1.use_std =
-      (f.crossbeam_epoch_0_4_1.use_std or false) ||
-      (f.crossbeam_epoch_0_4_1.default or false) ||
-      (crossbeam_epoch_0_4_1.default or false);
-    crossbeam_utils_0_3_2.default = (f.crossbeam_utils_0_3_2.default or false);
-    crossbeam_utils_0_3_2.use_std =
-      (f.crossbeam_utils_0_3_2.use_std or false) ||
-      (crossbeam_epoch_0_4_1.use_std or false) ||
-      (f.crossbeam_epoch_0_4_1.use_std or false);
-    lazy_static_1_0_0.default = true;
-    memoffset_0_2_1.default = true;
-    scopeguard_0_3_3.default = (f.scopeguard_0_3_3.default or false);
-  }) [ arrayvec_0_4_7_features cfg_if_0_1_3_features crossbeam_utils_0_3_2_features lazy_static_1_0_0_features memoffset_0_2_1_features scopeguard_0_3_3_features ];
-  crossbeam_utils_0_2_2 = { features?(crossbeam_utils_0_2_2_features {}) }: crossbeam_utils_0_2_2_ {
-    dependencies = mapFeatures features ([ cfg_if_0_1_3 ]);
-    features = mkFeatures (features.crossbeam_utils_0_2_2 or {});
-  };
-  crossbeam_utils_0_2_2_features = f: updateFeatures f (rec {
-    cfg_if_0_1_3.default = true;
-    crossbeam_utils_0_2_2.default = (f.crossbeam_utils_0_2_2.default or true);
-    crossbeam_utils_0_2_2.use_std =
-      (f.crossbeam_utils_0_2_2.use_std or false) ||
-      (f.crossbeam_utils_0_2_2.default or false) ||
-      (crossbeam_utils_0_2_2.default or false);
-  }) [ cfg_if_0_1_3_features ];
-  crossbeam_utils_0_3_2 = { features?(crossbeam_utils_0_3_2_features {}) }: crossbeam_utils_0_3_2_ {
-    dependencies = mapFeatures features ([ cfg_if_0_1_3 ]);
-    features = mkFeatures (features.crossbeam_utils_0_3_2 or {});
-  };
-  crossbeam_utils_0_3_2_features = f: updateFeatures f (rec {
-    cfg_if_0_1_3.default = true;
-    crossbeam_utils_0_3_2.default = (f.crossbeam_utils_0_3_2.default or true);
-    crossbeam_utils_0_3_2.use_std =
-      (f.crossbeam_utils_0_3_2.use_std or false) ||
-      (f.crossbeam_utils_0_3_2.default or false) ||
-      (crossbeam_utils_0_3_2.default or false);
-  }) [ cfg_if_0_1_3_features ];
-  dbghelp_sys_0_2_0 = { features?(dbghelp_sys_0_2_0_features {}) }: dbghelp_sys_0_2_0_ {
-    dependencies = mapFeatures features ([ winapi_0_2_8 ]);
-    buildDependencies = mapFeatures features ([ winapi_build_0_1_1 ]);
-  };
-  dbghelp_sys_0_2_0_features = f: updateFeatures f (rec {
-    dbghelp_sys_0_2_0.default = (f.dbghelp_sys_0_2_0.default or true);
-    winapi_0_2_8.default = true;
-    winapi_build_0_1_1.default = true;
-  }) [ winapi_0_2_8_features winapi_build_0_1_1_features ];
-  diesel_1_2_2 = { features?(diesel_1_2_2_features {}) }: diesel_1_2_2_ {
-    dependencies = mapFeatures features ([ byteorder_1_2_3 diesel_derives_1_2_0 ]
-      ++ (if features.diesel_1_2_2.bitflags or false then [ bitflags_1_0_3 ] else [])
-      ++ (if features.diesel_1_2_2.chrono or false then [ chrono_0_4_2 ] else [])
-      ++ (if features.diesel_1_2_2."pq-sys" or false then [ pq_sys_0_4_4 ] else [])
-      ++ (if features.diesel_1_2_2."r2d2" or false then [ r2d2_0_8_2 ] else []));
-    features = mkFeatures (features.diesel_1_2_2 or {});
-  };
-  diesel_1_2_2_features = f: updateFeatures f (rec {
-    bitflags_1_0_3.default = true;
-    byteorder_1_2_3.default = true;
-    chrono_0_4_2.default = true;
-    diesel_1_2_2."128-column-tables" =
-      (f.diesel_1_2_2."128-column-tables" or false) ||
-      (f.diesel_1_2_2."x128-column-tables" or false) ||
-      (diesel_1_2_2."x128-column-tables" or false);
-    diesel_1_2_2."32-column-tables" =
-      (f.diesel_1_2_2."32-column-tables" or false) ||
-      (f.diesel_1_2_2."64-column-tables" or false) ||
-      (diesel_1_2_2."64-column-tables" or false) ||
-      (f.diesel_1_2_2.default or false) ||
-      (diesel_1_2_2.default or false) ||
-      (f.diesel_1_2_2."large-tables" or false) ||
-      (diesel_1_2_2."large-tables" or false) ||
-      (f.diesel_1_2_2."x32-column-tables" or false) ||
-      (diesel_1_2_2."x32-column-tables" or false);
-    diesel_1_2_2."64-column-tables" =
-      (f.diesel_1_2_2."64-column-tables" or false) ||
-      (f.diesel_1_2_2."128-column-tables" or false) ||
-      (diesel_1_2_2."128-column-tables" or false) ||
-      (f.diesel_1_2_2."huge-tables" or false) ||
-      (diesel_1_2_2."huge-tables" or false) ||
-      (f.diesel_1_2_2."x64-column-tables" or false) ||
-      (diesel_1_2_2."x64-column-tables" or false);
-    diesel_1_2_2."deprecated-time" =
-      (f.diesel_1_2_2."deprecated-time" or false) ||
-      (f.diesel_1_2_2.extras or false) ||
-      (diesel_1_2_2.extras or false);
-    diesel_1_2_2."libsqlite3-sys" =
-      (f.diesel_1_2_2."libsqlite3-sys" or false) ||
-      (f.diesel_1_2_2.sqlite or false) ||
-      (diesel_1_2_2.sqlite or false);
-    diesel_1_2_2."mysqlclient-sys" =
-      (f.diesel_1_2_2."mysqlclient-sys" or false) ||
-      (f.diesel_1_2_2.mysql or false) ||
-      (diesel_1_2_2.mysql or false);
-    diesel_1_2_2."network-address" =
-      (f.diesel_1_2_2."network-address" or false) ||
-      (f.diesel_1_2_2.extras or false) ||
-      (diesel_1_2_2.extras or false);
-    diesel_1_2_2."num-bigint" =
-      (f.diesel_1_2_2."num-bigint" or false) ||
-      (f.diesel_1_2_2.numeric or false) ||
-      (diesel_1_2_2.numeric or false);
-    diesel_1_2_2."num-integer" =
-      (f.diesel_1_2_2."num-integer" or false) ||
-      (f.diesel_1_2_2.numeric or false) ||
-      (diesel_1_2_2.numeric or false);
-    diesel_1_2_2."num-traits" =
-      (f.diesel_1_2_2."num-traits" or false) ||
-      (f.diesel_1_2_2.numeric or false) ||
-      (diesel_1_2_2.numeric or false);
-    diesel_1_2_2."pq-sys" =
-      (f.diesel_1_2_2."pq-sys" or false) ||
-      (f.diesel_1_2_2.postgres or false) ||
-      (diesel_1_2_2.postgres or false);
-    diesel_1_2_2."r2d2" =
-      (f.diesel_1_2_2."r2d2" or false) ||
-      (f.diesel_1_2_2.extras or false) ||
-      (diesel_1_2_2.extras or false);
-    diesel_1_2_2."with-deprecated" =
-      (f.diesel_1_2_2."with-deprecated" or false) ||
-      (f.diesel_1_2_2.default or false) ||
-      (diesel_1_2_2.default or false);
-    diesel_1_2_2.bigdecimal =
-      (f.diesel_1_2_2.bigdecimal or false) ||
-      (f.diesel_1_2_2.numeric or false) ||
-      (diesel_1_2_2.numeric or false);
-    diesel_1_2_2.bitflags =
-      (f.diesel_1_2_2.bitflags or false) ||
-      (f.diesel_1_2_2.postgres or false) ||
-      (diesel_1_2_2.postgres or false);
-    diesel_1_2_2.chrono =
-      (f.diesel_1_2_2.chrono or false) ||
-      (f.diesel_1_2_2.extras or false) ||
-      (diesel_1_2_2.extras or false);
-    diesel_1_2_2.clippy =
-      (f.diesel_1_2_2.clippy or false) ||
-      (f.diesel_1_2_2.lint or false) ||
-      (diesel_1_2_2.lint or false);
-    diesel_1_2_2.default = (f.diesel_1_2_2.default or true);
-    diesel_1_2_2.ipnetwork =
-      (f.diesel_1_2_2.ipnetwork or false) ||
-      (f.diesel_1_2_2."network-address" or false) ||
-      (diesel_1_2_2."network-address" or false);
-    diesel_1_2_2.libc =
-      (f.diesel_1_2_2.libc or false) ||
-      (f.diesel_1_2_2."network-address" or false) ||
-      (diesel_1_2_2."network-address" or false);
-    diesel_1_2_2.numeric =
-      (f.diesel_1_2_2.numeric or false) ||
-      (f.diesel_1_2_2.extras or false) ||
-      (diesel_1_2_2.extras or false);
-    diesel_1_2_2.serde_json =
-      (f.diesel_1_2_2.serde_json or false) ||
-      (f.diesel_1_2_2.extras or false) ||
-      (diesel_1_2_2.extras or false);
-    diesel_1_2_2.time =
-      (f.diesel_1_2_2.time or false) ||
-      (f.diesel_1_2_2."deprecated-time" or false) ||
-      (diesel_1_2_2."deprecated-time" or false);
-    diesel_1_2_2.url =
-      (f.diesel_1_2_2.url or false) ||
-      (f.diesel_1_2_2.mysql or false) ||
-      (diesel_1_2_2.mysql or false);
-    diesel_1_2_2.uuid =
-      (f.diesel_1_2_2.uuid or false) ||
-      (f.diesel_1_2_2.extras or false) ||
-      (diesel_1_2_2.extras or false);
-    diesel_derives_1_2_0.default = true;
-    diesel_derives_1_2_0.mysql =
-      (f.diesel_derives_1_2_0.mysql or false) ||
-      (diesel_1_2_2.mysql or false) ||
-      (f.diesel_1_2_2.mysql or false);
-    diesel_derives_1_2_0.nightly =
-      (f.diesel_derives_1_2_0.nightly or false) ||
-      (diesel_1_2_2.unstable or false) ||
-      (f.diesel_1_2_2.unstable or false);
-    diesel_derives_1_2_0.postgres =
-      (f.diesel_derives_1_2_0.postgres or false) ||
-      (diesel_1_2_2.postgres or false) ||
-      (f.diesel_1_2_2.postgres or false);
-    diesel_derives_1_2_0.sqlite =
-      (f.diesel_derives_1_2_0.sqlite or false) ||
-      (diesel_1_2_2.sqlite or false) ||
-      (f.diesel_1_2_2.sqlite or false);
-    pq_sys_0_4_4.default = true;
-    r2d2_0_8_2.default = true;
-  }) [ bitflags_1_0_3_features byteorder_1_2_3_features chrono_0_4_2_features diesel_derives_1_2_0_features pq_sys_0_4_4_features r2d2_0_8_2_features ];
-  diesel_derives_1_2_0 = { features?(diesel_derives_1_2_0_features {}) }: diesel_derives_1_2_0_ {
-    dependencies = mapFeatures features ([ proc_macro2_0_2_3 quote_0_4_2 syn_0_12_15 ]);
-    features = mkFeatures (features.diesel_derives_1_2_0 or {});
-  };
-  diesel_derives_1_2_0_features = f: updateFeatures f (rec {
-    diesel_derives_1_2_0.clippy =
-      (f.diesel_derives_1_2_0.clippy or false) ||
-      (f.diesel_derives_1_2_0.lint or false) ||
-      (diesel_derives_1_2_0.lint or false);
-    diesel_derives_1_2_0.default = (f.diesel_derives_1_2_0.default or true);
-    proc_macro2_0_2_3.default = true;
-    proc_macro2_0_2_3.nightly =
-      (f.proc_macro2_0_2_3.nightly or false) ||
-      (diesel_derives_1_2_0.nightly or false) ||
-      (f.diesel_derives_1_2_0.nightly or false);
-    quote_0_4_2.default = true;
-    syn_0_12_15.default = true;
-    syn_0_12_15.fold = true;
-    syn_0_12_15.full = true;
-  }) [ proc_macro2_0_2_3_features quote_0_4_2_features syn_0_12_15_features ];
-  dtoa_0_4_2 = { features?(dtoa_0_4_2_features {}) }: dtoa_0_4_2_ {};
-  dtoa_0_4_2_features = f: updateFeatures f (rec {
-    dtoa_0_4_2.default = (f.dtoa_0_4_2.default or true);
-  }) [];
-  encoding_0_2_33 = { features?(encoding_0_2_33_features {}) }: encoding_0_2_33_ {
-    dependencies = mapFeatures features ([ encoding_index_japanese_1_20141219_5 encoding_index_korean_1_20141219_5 encoding_index_simpchinese_1_20141219_5 encoding_index_singlebyte_1_20141219_5 encoding_index_tradchinese_1_20141219_5 ]);
-  };
-  encoding_0_2_33_features = f: updateFeatures f (rec {
-    encoding_0_2_33.default = (f.encoding_0_2_33.default or true);
-    encoding_index_japanese_1_20141219_5.default = true;
-    encoding_index_korean_1_20141219_5.default = true;
-    encoding_index_simpchinese_1_20141219_5.default = true;
-    encoding_index_singlebyte_1_20141219_5.default = true;
-    encoding_index_tradchinese_1_20141219_5.default = true;
-  }) [ encoding_index_japanese_1_20141219_5_features encoding_index_korean_1_20141219_5_features encoding_index_simpchinese_1_20141219_5_features encoding_index_singlebyte_1_20141219_5_features encoding_index_tradchinese_1_20141219_5_features ];
-  encoding_index_japanese_1_20141219_5 = { features?(encoding_index_japanese_1_20141219_5_features {}) }: encoding_index_japanese_1_20141219_5_ {
-    dependencies = mapFeatures features ([ encoding_index_tests_0_1_4 ]);
-  };
-  encoding_index_japanese_1_20141219_5_features = f: updateFeatures f (rec {
-    encoding_index_japanese_1_20141219_5.default = (f.encoding_index_japanese_1_20141219_5.default or true);
-    encoding_index_tests_0_1_4.default = true;
-  }) [ encoding_index_tests_0_1_4_features ];
-  encoding_index_korean_1_20141219_5 = { features?(encoding_index_korean_1_20141219_5_features {}) }: encoding_index_korean_1_20141219_5_ {
-    dependencies = mapFeatures features ([ encoding_index_tests_0_1_4 ]);
-  };
-  encoding_index_korean_1_20141219_5_features = f: updateFeatures f (rec {
-    encoding_index_korean_1_20141219_5.default = (f.encoding_index_korean_1_20141219_5.default or true);
-    encoding_index_tests_0_1_4.default = true;
-  }) [ encoding_index_tests_0_1_4_features ];
-  encoding_index_simpchinese_1_20141219_5 = { features?(encoding_index_simpchinese_1_20141219_5_features {}) }: encoding_index_simpchinese_1_20141219_5_ {
-    dependencies = mapFeatures features ([ encoding_index_tests_0_1_4 ]);
-  };
-  encoding_index_simpchinese_1_20141219_5_features = f: updateFeatures f (rec {
-    encoding_index_simpchinese_1_20141219_5.default = (f.encoding_index_simpchinese_1_20141219_5.default or true);
-    encoding_index_tests_0_1_4.default = true;
-  }) [ encoding_index_tests_0_1_4_features ];
-  encoding_index_singlebyte_1_20141219_5 = { features?(encoding_index_singlebyte_1_20141219_5_features {}) }: encoding_index_singlebyte_1_20141219_5_ {
-    dependencies = mapFeatures features ([ encoding_index_tests_0_1_4 ]);
-  };
-  encoding_index_singlebyte_1_20141219_5_features = f: updateFeatures f (rec {
-    encoding_index_singlebyte_1_20141219_5.default = (f.encoding_index_singlebyte_1_20141219_5.default or true);
-    encoding_index_tests_0_1_4.default = true;
-  }) [ encoding_index_tests_0_1_4_features ];
-  encoding_index_tradchinese_1_20141219_5 = { features?(encoding_index_tradchinese_1_20141219_5_features {}) }: encoding_index_tradchinese_1_20141219_5_ {
-    dependencies = mapFeatures features ([ encoding_index_tests_0_1_4 ]);
-  };
-  encoding_index_tradchinese_1_20141219_5_features = f: updateFeatures f (rec {
-    encoding_index_tests_0_1_4.default = true;
-    encoding_index_tradchinese_1_20141219_5.default = (f.encoding_index_tradchinese_1_20141219_5.default or true);
-  }) [ encoding_index_tests_0_1_4_features ];
-  encoding_index_tests_0_1_4 = { features?(encoding_index_tests_0_1_4_features {}) }: encoding_index_tests_0_1_4_ {};
-  encoding_index_tests_0_1_4_features = f: updateFeatures f (rec {
-    encoding_index_tests_0_1_4.default = (f.encoding_index_tests_0_1_4.default or true);
-  }) [];
-  encoding_rs_0_7_2 = { features?(encoding_rs_0_7_2_features {}) }: encoding_rs_0_7_2_ {
-    dependencies = mapFeatures features ([ cfg_if_0_1_3 ]);
-    features = mkFeatures (features.encoding_rs_0_7_2 or {});
-  };
-  encoding_rs_0_7_2_features = f: updateFeatures f (rec {
-    cfg_if_0_1_3.default = true;
-    encoding_rs_0_7_2.default = (f.encoding_rs_0_7_2.default or true);
-    encoding_rs_0_7_2.simd =
-      (f.encoding_rs_0_7_2.simd or false) ||
-      (f.encoding_rs_0_7_2."simd-accel" or false) ||
-      (encoding_rs_0_7_2."simd-accel" or false);
-  }) [ cfg_if_0_1_3_features ];
-  entities_1_0_1 = { features?(entities_1_0_1_features {}) }: entities_1_0_1_ {};
-  entities_1_0_1_features = f: updateFeatures f (rec {
-    entities_1_0_1.default = (f.entities_1_0_1.default or true);
-  }) [];
-  env_logger_0_5_10 = { features?(env_logger_0_5_10_features {}) }: env_logger_0_5_10_ {
-    dependencies = mapFeatures features ([ atty_0_2_10 humantime_1_1_1 log_0_4_1 termcolor_0_3_6 ]
-      ++ (if features.env_logger_0_5_10.regex or false then [ regex_1_0_0 ] else []));
-    features = mkFeatures (features.env_logger_0_5_10 or {});
-  };
-  env_logger_0_5_10_features = f: updateFeatures f (rec {
-    atty_0_2_10.default = true;
-    env_logger_0_5_10.default = (f.env_logger_0_5_10.default or true);
-    env_logger_0_5_10.regex =
-      (f.env_logger_0_5_10.regex or false) ||
-      (f.env_logger_0_5_10.default or false) ||
-      (env_logger_0_5_10.default or false);
-    humantime_1_1_1.default = true;
-    log_0_4_1.default = true;
-    log_0_4_1.std = true;
-    regex_1_0_0.default = true;
-    termcolor_0_3_6.default = true;
-  }) [ atty_0_2_10_features humantime_1_1_1_features log_0_4_1_features regex_1_0_0_features termcolor_0_3_6_features ];
-  error_chain_0_1_12 = { features?(error_chain_0_1_12_features {}) }: error_chain_0_1_12_ {
-    dependencies = mapFeatures features ([ backtrace_0_2_3 ]);
-  };
-  error_chain_0_1_12_features = f: updateFeatures f (rec {
-    backtrace_0_2_3.default = true;
-    error_chain_0_1_12.default = (f.error_chain_0_1_12.default or true);
-  }) [ backtrace_0_2_3_features ];
-  error_chain_0_8_1 = { features?(error_chain_0_8_1_features {}) }: error_chain_0_8_1_ {
-    dependencies = mapFeatures features ([ ]
-      ++ (if features.error_chain_0_8_1.backtrace or false then [ backtrace_0_3_7 ] else []));
-    features = mkFeatures (features.error_chain_0_8_1 or {});
-  };
-  error_chain_0_8_1_features = f: updateFeatures f (rec {
-    backtrace_0_3_7.default = true;
-    error_chain_0_8_1.backtrace =
-      (f.error_chain_0_8_1.backtrace or false) ||
-      (f.error_chain_0_8_1.default or false) ||
-      (error_chain_0_8_1.default or false);
-    error_chain_0_8_1.default = (f.error_chain_0_8_1.default or true);
-    error_chain_0_8_1.example_generated =
-      (f.error_chain_0_8_1.example_generated or false) ||
-      (f.error_chain_0_8_1.default or false) ||
-      (error_chain_0_8_1.default or false);
-  }) [ backtrace_0_3_7_features ];
-  error_chain_0_11_0 = { features?(error_chain_0_11_0_features {}) }: error_chain_0_11_0_ {
-    dependencies = mapFeatures features ([ ]
-      ++ (if features.error_chain_0_11_0.backtrace or false then [ backtrace_0_3_7 ] else []));
-    features = mkFeatures (features.error_chain_0_11_0 or {});
-  };
-  error_chain_0_11_0_features = f: updateFeatures f (rec {
-    backtrace_0_3_7.default = true;
-    error_chain_0_11_0.backtrace =
-      (f.error_chain_0_11_0.backtrace or false) ||
-      (f.error_chain_0_11_0.default or false) ||
-      (error_chain_0_11_0.default or false);
-    error_chain_0_11_0.default = (f.error_chain_0_11_0.default or true);
-    error_chain_0_11_0.example_generated =
-      (f.error_chain_0_11_0.example_generated or false) ||
-      (f.error_chain_0_11_0.default or false) ||
-      (error_chain_0_11_0.default or false);
-  }) [ backtrace_0_3_7_features ];
-  failure_0_1_1 = { features?(failure_0_1_1_features {}) }: failure_0_1_1_ {
-    dependencies = mapFeatures features ([ ]
-      ++ (if features.failure_0_1_1.backtrace or false then [ backtrace_0_3_7 ] else [])
-      ++ (if features.failure_0_1_1.failure_derive or false then [ failure_derive_0_1_1 ] else []));
-    features = mkFeatures (features.failure_0_1_1 or {});
-  };
-  failure_0_1_1_features = f: updateFeatures f (rec {
-    backtrace_0_3_7.default = true;
-    failure_0_1_1.backtrace =
-      (f.failure_0_1_1.backtrace or false) ||
-      (f.failure_0_1_1.std or false) ||
-      (failure_0_1_1.std or false);
-    failure_0_1_1.default = (f.failure_0_1_1.default or true);
-    failure_0_1_1.derive =
-      (f.failure_0_1_1.derive or false) ||
-      (f.failure_0_1_1.default or false) ||
-      (failure_0_1_1.default or false);
-    failure_0_1_1.failure_derive =
-      (f.failure_0_1_1.failure_derive or false) ||
-      (f.failure_0_1_1.derive or false) ||
-      (failure_0_1_1.derive or false);
-    failure_0_1_1.std =
-      (f.failure_0_1_1.std or false) ||
-      (f.failure_0_1_1.default or false) ||
-      (failure_0_1_1.default or false);
-    failure_derive_0_1_1.default = true;
-  }) [ backtrace_0_3_7_features failure_derive_0_1_1_features ];
-  failure_derive_0_1_1 = { features?(failure_derive_0_1_1_features {}) }: failure_derive_0_1_1_ {
-    dependencies = mapFeatures features ([ quote_0_3_15 syn_0_11_11 synstructure_0_6_1 ]);
-    features = mkFeatures (features.failure_derive_0_1_1 or {});
-  };
-  failure_derive_0_1_1_features = f: updateFeatures f (rec {
-    failure_derive_0_1_1.default = (f.failure_derive_0_1_1.default or true);
-    failure_derive_0_1_1.std =
-      (f.failure_derive_0_1_1.std or false) ||
-      (f.failure_derive_0_1_1.default or false) ||
-      (failure_derive_0_1_1.default or false);
-    quote_0_3_15.default = true;
-    syn_0_11_11.default = true;
-    synstructure_0_6_1.default = true;
-  }) [ quote_0_3_15_features syn_0_11_11_features synstructure_0_6_1_features ];
-  flate2_1_0_1 = { features?(flate2_1_0_1_features {}) }: flate2_1_0_1_ {
-    dependencies = mapFeatures features ([ libc_0_2_41 ]
-      ++ (if features.flate2_1_0_1."miniz-sys" or false then [ miniz_sys_0_1_10 ] else []));
-    features = mkFeatures (features.flate2_1_0_1 or {});
-  };
-  flate2_1_0_1_features = f: updateFeatures f (rec {
-    flate2_1_0_1."libz-sys" =
-      (f.flate2_1_0_1."libz-sys" or false) ||
-      (f.flate2_1_0_1.zlib or false) ||
-      (flate2_1_0_1.zlib or false);
-    flate2_1_0_1."miniz-sys" =
-      (f.flate2_1_0_1."miniz-sys" or false) ||
-      (f.flate2_1_0_1.default or false) ||
-      (flate2_1_0_1.default or false);
-    flate2_1_0_1."tokio-io" =
-      (f.flate2_1_0_1."tokio-io" or false) ||
-      (f.flate2_1_0_1.tokio or false) ||
-      (flate2_1_0_1.tokio or false);
-    flate2_1_0_1.default = (f.flate2_1_0_1.default or true);
-    flate2_1_0_1.futures =
-      (f.flate2_1_0_1.futures or false) ||
-      (f.flate2_1_0_1.tokio or false) ||
-      (flate2_1_0_1.tokio or false);
-    flate2_1_0_1.miniz_oxide_c_api =
-      (f.flate2_1_0_1.miniz_oxide_c_api or false) ||
-      (f.flate2_1_0_1.rust_backend or false) ||
-      (flate2_1_0_1.rust_backend or false);
-    libc_0_2_41.default = true;
-    miniz_sys_0_1_10.default = true;
-  }) [ libc_0_2_41_features miniz_sys_0_1_10_features ];
-  fnv_1_0_6 = { features?(fnv_1_0_6_features {}) }: fnv_1_0_6_ {};
-  fnv_1_0_6_features = f: updateFeatures f (rec {
-    fnv_1_0_6.default = (f.fnv_1_0_6.default or true);
-  }) [];
-  foreign_types_0_3_2 = { features?(foreign_types_0_3_2_features {}) }: foreign_types_0_3_2_ {
-    dependencies = mapFeatures features ([ foreign_types_shared_0_1_1 ]);
-  };
-  foreign_types_0_3_2_features = f: updateFeatures f (rec {
-    foreign_types_0_3_2.default = (f.foreign_types_0_3_2.default or true);
-    foreign_types_shared_0_1_1.default = true;
-  }) [ foreign_types_shared_0_1_1_features ];
-  foreign_types_shared_0_1_1 = { features?(foreign_types_shared_0_1_1_features {}) }: foreign_types_shared_0_1_1_ {};
-  foreign_types_shared_0_1_1_features = f: updateFeatures f (rec {
-    foreign_types_shared_0_1_1.default = (f.foreign_types_shared_0_1_1.default or true);
-  }) [];
-  fuchsia_zircon_0_3_3 = { features?(fuchsia_zircon_0_3_3_features {}) }: fuchsia_zircon_0_3_3_ {
-    dependencies = mapFeatures features ([ bitflags_1_0_3 fuchsia_zircon_sys_0_3_3 ]);
-  };
-  fuchsia_zircon_0_3_3_features = f: updateFeatures f (rec {
-    bitflags_1_0_3.default = true;
-    fuchsia_zircon_0_3_3.default = (f.fuchsia_zircon_0_3_3.default or true);
-    fuchsia_zircon_sys_0_3_3.default = true;
-  }) [ bitflags_1_0_3_features fuchsia_zircon_sys_0_3_3_features ];
-  fuchsia_zircon_sys_0_3_3 = { features?(fuchsia_zircon_sys_0_3_3_features {}) }: fuchsia_zircon_sys_0_3_3_ {};
-  fuchsia_zircon_sys_0_3_3_features = f: updateFeatures f (rec {
-    fuchsia_zircon_sys_0_3_3.default = (f.fuchsia_zircon_sys_0_3_3.default or true);
-  }) [];
-  futures_0_1_21 = { features?(futures_0_1_21_features {}) }: futures_0_1_21_ {
-    features = mkFeatures (features.futures_0_1_21 or {});
-  };
-  futures_0_1_21_features = f: updateFeatures f (rec {
-    futures_0_1_21."with-deprecated" =
-      (f.futures_0_1_21."with-deprecated" or false) ||
-      (f.futures_0_1_21.default or false) ||
-      (futures_0_1_21.default or false);
-    futures_0_1_21.default = (f.futures_0_1_21.default or true);
-    futures_0_1_21.use_std =
-      (f.futures_0_1_21.use_std or false) ||
-      (f.futures_0_1_21.default or false) ||
-      (futures_0_1_21.default or false);
-  }) [];
-  futures_cpupool_0_1_8 = { features?(futures_cpupool_0_1_8_features {}) }: futures_cpupool_0_1_8_ {
-    dependencies = mapFeatures features ([ futures_0_1_21 num_cpus_1_8_0 ]);
-    features = mkFeatures (features.futures_cpupool_0_1_8 or {});
-  };
-  futures_cpupool_0_1_8_features = f: updateFeatures f (rec {
-    futures_0_1_21."with-deprecated" =
-      (f.futures_0_1_21."with-deprecated" or false) ||
-      (futures_cpupool_0_1_8."with-deprecated" or false) ||
-      (f.futures_cpupool_0_1_8."with-deprecated" or false);
-    futures_0_1_21.default = (f.futures_0_1_21.default or false);
-    futures_0_1_21.use_std = true;
-    futures_cpupool_0_1_8."with-deprecated" =
-      (f.futures_cpupool_0_1_8."with-deprecated" or false) ||
-      (f.futures_cpupool_0_1_8.default or false) ||
-      (futures_cpupool_0_1_8.default or false);
-    futures_cpupool_0_1_8.default = (f.futures_cpupool_0_1_8.default or true);
-    num_cpus_1_8_0.default = true;
-  }) [ futures_0_1_21_features num_cpus_1_8_0_features ];
-  gcc_0_3_54 = { features?(gcc_0_3_54_features {}) }: gcc_0_3_54_ {
-    dependencies = mapFeatures features ([]);
-    features = mkFeatures (features.gcc_0_3_54 or {});
-  };
-  gcc_0_3_54_features = f: updateFeatures f (rec {
-    gcc_0_3_54.default = (f.gcc_0_3_54.default or true);
-    gcc_0_3_54.rayon =
-      (f.gcc_0_3_54.rayon or false) ||
-      (f.gcc_0_3_54.parallel or false) ||
-      (gcc_0_3_54.parallel or false);
-  }) [];
-  getopts_0_2_17 = { features?(getopts_0_2_17_features {}) }: getopts_0_2_17_ {};
-  getopts_0_2_17_features = f: updateFeatures f (rec {
-    getopts_0_2_17.default = (f.getopts_0_2_17.default or true);
-  }) [];
-  glob_0_2_11 = { features?(glob_0_2_11_features {}) }: glob_0_2_11_ {};
-  glob_0_2_11_features = f: updateFeatures f (rec {
-    glob_0_2_11.default = (f.glob_0_2_11.default or true);
-  }) [];
-  h2_0_1_7 = { features?(h2_0_1_7_features {}) }: h2_0_1_7_ {
-    dependencies = mapFeatures features ([ byteorder_1_2_3 bytes_0_4_7 fnv_1_0_6 futures_0_1_21 http_0_1_5 indexmap_1_0_1 log_0_4_1 slab_0_4_0 string_0_1_0 tokio_io_0_1_6 ]);
-    features = mkFeatures (features.h2_0_1_7 or {});
-  };
-  h2_0_1_7_features = f: updateFeatures f (rec {
-    byteorder_1_2_3.default = true;
-    bytes_0_4_7.default = true;
-    fnv_1_0_6.default = true;
-    futures_0_1_21.default = true;
-    h2_0_1_7.default = (f.h2_0_1_7.default or true);
-    http_0_1_5.default = true;
-    indexmap_1_0_1.default = true;
-    log_0_4_1.default = true;
-    slab_0_4_0.default = true;
-    string_0_1_0.default = true;
-    tokio_io_0_1_6.default = true;
-  }) [ byteorder_1_2_3_features bytes_0_4_7_features fnv_1_0_6_features futures_0_1_21_features http_0_1_5_features indexmap_1_0_1_features log_0_4_1_features slab_0_4_0_features string_0_1_0_features tokio_io_0_1_6_features ];
-  hostname_0_1_4 = { features?(hostname_0_1_4_features {}) }: hostname_0_1_4_ {
-    dependencies = (if (kernel == "linux" || kernel == "darwin") then mapFeatures features ([ libc_0_2_41 ]) else [])
-      ++ (if kernel == "windows" then mapFeatures features ([ winutil_0_1_1 ]) else []);
-    features = mkFeatures (features.hostname_0_1_4 or {});
-  };
-  hostname_0_1_4_features = f: updateFeatures f (rec {
-    hostname_0_1_4.default = (f.hostname_0_1_4.default or true);
-    libc_0_2_41.default = true;
-    winutil_0_1_1.default = true;
-  }) [ libc_0_2_41_features winutil_0_1_1_features ];
-  http_0_1_5 = { features?(http_0_1_5_features {}) }: http_0_1_5_ {
-    dependencies = mapFeatures features ([ bytes_0_4_7 fnv_1_0_6 ]);
-  };
-  http_0_1_5_features = f: updateFeatures f (rec {
-    bytes_0_4_7.default = true;
-    fnv_1_0_6.default = true;
-    http_0_1_5.default = (f.http_0_1_5.default or true);
-  }) [ bytes_0_4_7_features fnv_1_0_6_features ];
-  http_range_0_1_1 = { features?(http_range_0_1_1_features {}) }: http_range_0_1_1_ {};
-  http_range_0_1_1_features = f: updateFeatures f (rec {
-    http_range_0_1_1.default = (f.http_range_0_1_1.default or true);
-  }) [];
-  httparse_1_2_4 = { features?(httparse_1_2_4_features {}) }: httparse_1_2_4_ {
-    features = mkFeatures (features.httparse_1_2_4 or {});
-  };
-  httparse_1_2_4_features = f: updateFeatures f (rec {
-    httparse_1_2_4.default = (f.httparse_1_2_4.default or true);
-    httparse_1_2_4.std =
-      (f.httparse_1_2_4.std or false) ||
-      (f.httparse_1_2_4.default or false) ||
-      (httparse_1_2_4.default or false);
-  }) [];
-  humantime_1_1_1 = { features?(humantime_1_1_1_features {}) }: humantime_1_1_1_ {
-    dependencies = mapFeatures features ([ quick_error_1_2_1 ]);
-  };
-  humantime_1_1_1_features = f: updateFeatures f (rec {
-    humantime_1_1_1.default = (f.humantime_1_1_1.default or true);
-    quick_error_1_2_1.default = true;
-  }) [ quick_error_1_2_1_features ];
-  hyper_0_11_27 = { features?(hyper_0_11_27_features {}) }: hyper_0_11_27_ {
-    dependencies = mapFeatures features ([ base64_0_9_1 bytes_0_4_7 futures_0_1_21 futures_cpupool_0_1_8 httparse_1_2_4 iovec_0_1_2 language_tags_0_2_2 log_0_4_1 mime_0_3_7 net2_0_2_32 percent_encoding_1_0_1 relay_0_1_1 time_0_1_40 tokio_core_0_1_17 tokio_io_0_1_6 tokio_service_0_1_0 unicase_2_1_0 want_0_0_4 ]
-      ++ (if features.hyper_0_11_27."tokio-proto" or false then [ tokio_proto_0_1_1 ] else []));
-    features = mkFeatures (features.hyper_0_11_27 or {});
-  };
-  hyper_0_11_27_features = f: updateFeatures f (rec {
-    base64_0_9_1.default = true;
-    bytes_0_4_7.default = true;
-    futures_0_1_21.default = true;
-    futures_cpupool_0_1_8.default = true;
-    httparse_1_2_4.default = true;
-    hyper_0_11_27."server-proto" =
-      (f.hyper_0_11_27."server-proto" or false) ||
-      (f.hyper_0_11_27.default or false) ||
-      (hyper_0_11_27.default or false);
-    hyper_0_11_27."tokio-proto" =
-      (f.hyper_0_11_27."tokio-proto" or false) ||
-      (f.hyper_0_11_27."server-proto" or false) ||
-      (hyper_0_11_27."server-proto" or false);
-    hyper_0_11_27.default = (f.hyper_0_11_27.default or true);
-    hyper_0_11_27.http =
-      (f.hyper_0_11_27.http or false) ||
-      (f.hyper_0_11_27.compat or false) ||
-      (hyper_0_11_27.compat or false);
-    iovec_0_1_2.default = true;
-    language_tags_0_2_2.default = true;
-    log_0_4_1.default = true;
-    mime_0_3_7.default = true;
-    net2_0_2_32.default = true;
-    percent_encoding_1_0_1.default = true;
-    relay_0_1_1.default = true;
-    time_0_1_40.default = true;
-    tokio_core_0_1_17.default = true;
-    tokio_io_0_1_6.default = true;
-    tokio_proto_0_1_1.default = true;
-    tokio_service_0_1_0.default = true;
-    unicase_2_1_0.default = true;
-    want_0_0_4.default = true;
-  }) [ base64_0_9_1_features bytes_0_4_7_features futures_0_1_21_features futures_cpupool_0_1_8_features httparse_1_2_4_features iovec_0_1_2_features language_tags_0_2_2_features log_0_4_1_features mime_0_3_7_features net2_0_2_32_features percent_encoding_1_0_1_features relay_0_1_1_features time_0_1_40_features tokio_core_0_1_17_features tokio_io_0_1_6_features tokio_proto_0_1_1_features tokio_service_0_1_0_features unicase_2_1_0_features want_0_0_4_features ];
-  hyper_tls_0_1_3 = { features?(hyper_tls_0_1_3_features {}) }: hyper_tls_0_1_3_ {
-    dependencies = mapFeatures features ([ futures_0_1_21 hyper_0_11_27 native_tls_0_1_5 tokio_core_0_1_17 tokio_io_0_1_6 tokio_service_0_1_0 tokio_tls_0_1_4 ]);
-  };
-  hyper_tls_0_1_3_features = f: updateFeatures f (rec {
-    futures_0_1_21.default = true;
-    hyper_0_11_27.default = true;
-    hyper_tls_0_1_3.default = (f.hyper_tls_0_1_3.default or true);
-    native_tls_0_1_5.default = true;
-    tokio_core_0_1_17.default = true;
-    tokio_io_0_1_6.default = true;
-    tokio_service_0_1_0.default = true;
-    tokio_tls_0_1_4.default = true;
-  }) [ futures_0_1_21_features hyper_0_11_27_features native_tls_0_1_5_features tokio_core_0_1_17_features tokio_io_0_1_6_features tokio_service_0_1_0_features tokio_tls_0_1_4_features ];
-  idna_0_1_4 = { features?(idna_0_1_4_features {}) }: idna_0_1_4_ {
-    dependencies = mapFeatures features ([ matches_0_1_6 unicode_bidi_0_3_4 unicode_normalization_0_1_7 ]);
-  };
-  idna_0_1_4_features = f: updateFeatures f (rec {
-    idna_0_1_4.default = (f.idna_0_1_4.default or true);
-    matches_0_1_6.default = true;
-    unicode_bidi_0_3_4.default = true;
-    unicode_normalization_0_1_7.default = true;
-  }) [ matches_0_1_6_features unicode_bidi_0_3_4_features unicode_normalization_0_1_7_features ];
-  indexmap_1_0_1 = { features?(indexmap_1_0_1_features {}) }: indexmap_1_0_1_ {
-    dependencies = mapFeatures features ([]);
-    features = mkFeatures (features.indexmap_1_0_1 or {});
-  };
-  indexmap_1_0_1_features = f: updateFeatures f (rec {
-    indexmap_1_0_1.default = (f.indexmap_1_0_1.default or true);
-    indexmap_1_0_1.serde =
-      (f.indexmap_1_0_1.serde or false) ||
-      (f.indexmap_1_0_1."serde-1" or false) ||
-      (indexmap_1_0_1."serde-1" or false);
-  }) [];
-  iovec_0_1_2 = { features?(iovec_0_1_2_features {}) }: iovec_0_1_2_ {
-    dependencies = (if (kernel == "linux" || kernel == "darwin") then mapFeatures features ([ libc_0_2_41 ]) else [])
-      ++ (if kernel == "windows" then mapFeatures features ([ winapi_0_2_8 ]) else []);
-  };
-  iovec_0_1_2_features = f: updateFeatures f (rec {
-    iovec_0_1_2.default = (f.iovec_0_1_2.default or true);
-    libc_0_2_41.default = true;
-    winapi_0_2_8.default = true;
-  }) [ libc_0_2_41_features winapi_0_2_8_features ];
-  ipconfig_0_1_6 = { features?(ipconfig_0_1_6_features {}) }: ipconfig_0_1_6_ {
-    dependencies = (if kernel == "windows" then mapFeatures features ([ error_chain_0_8_1 socket2_0_3_5 widestring_0_2_2 winapi_0_3_4 winreg_0_5_0 ]) else []);
-  };
-  ipconfig_0_1_6_features = f: updateFeatures f (rec {
-    error_chain_0_8_1.default = true;
-    ipconfig_0_1_6.default = (f.ipconfig_0_1_6.default or true);
-    socket2_0_3_5.default = true;
-    widestring_0_2_2.default = true;
-    winapi_0_3_4.default = true;
-    winreg_0_5_0.default = true;
-  }) [ error_chain_0_8_1_features socket2_0_3_5_features widestring_0_2_2_features winapi_0_3_4_features winreg_0_5_0_features ];
-  itoa_0_4_1 = { features?(itoa_0_4_1_features {}) }: itoa_0_4_1_ {
-    features = mkFeatures (features.itoa_0_4_1 or {});
-  };
-  itoa_0_4_1_features = f: updateFeatures f (rec {
-    itoa_0_4_1.default = (f.itoa_0_4_1.default or true);
-    itoa_0_4_1.std =
-      (f.itoa_0_4_1.std or false) ||
-      (f.itoa_0_4_1.default or false) ||
-      (itoa_0_4_1.default or false);
-  }) [];
-  kernel32_sys_0_2_2 = { features?(kernel32_sys_0_2_2_features {}) }: kernel32_sys_0_2_2_ {
-    dependencies = mapFeatures features ([ winapi_0_2_8 ]);
-    buildDependencies = mapFeatures features ([ winapi_build_0_1_1 ]);
-  };
-  kernel32_sys_0_2_2_features = f: updateFeatures f (rec {
-    kernel32_sys_0_2_2.default = (f.kernel32_sys_0_2_2.default or true);
-    winapi_0_2_8.default = true;
-    winapi_build_0_1_1.default = true;
-  }) [ winapi_0_2_8_features winapi_build_0_1_1_features ];
-  language_tags_0_2_2 = { features?(language_tags_0_2_2_features {}) }: language_tags_0_2_2_ {
-    dependencies = mapFeatures features ([]);
-    features = mkFeatures (features.language_tags_0_2_2 or {});
-  };
-  language_tags_0_2_2_features = f: updateFeatures f (rec {
-    language_tags_0_2_2.default = (f.language_tags_0_2_2.default or true);
-    language_tags_0_2_2.heapsize =
-      (f.language_tags_0_2_2.heapsize or false) ||
-      (f.language_tags_0_2_2.heap_size or false) ||
-      (language_tags_0_2_2.heap_size or false);
-    language_tags_0_2_2.heapsize_plugin =
-      (f.language_tags_0_2_2.heapsize_plugin or false) ||
-      (f.language_tags_0_2_2.heap_size or false) ||
-      (language_tags_0_2_2.heap_size or false);
-  }) [];
-  lazy_static_0_2_11 = { features?(lazy_static_0_2_11_features {}) }: lazy_static_0_2_11_ {
-    dependencies = mapFeatures features ([]);
-    features = mkFeatures (features.lazy_static_0_2_11 or {});
-  };
-  lazy_static_0_2_11_features = f: updateFeatures f (rec {
-    lazy_static_0_2_11.compiletest_rs =
-      (f.lazy_static_0_2_11.compiletest_rs or false) ||
-      (f.lazy_static_0_2_11.compiletest or false) ||
-      (lazy_static_0_2_11.compiletest or false);
-    lazy_static_0_2_11.default = (f.lazy_static_0_2_11.default or true);
-    lazy_static_0_2_11.nightly =
-      (f.lazy_static_0_2_11.nightly or false) ||
-      (f.lazy_static_0_2_11.spin_no_std or false) ||
-      (lazy_static_0_2_11.spin_no_std or false);
-    lazy_static_0_2_11.spin =
-      (f.lazy_static_0_2_11.spin or false) ||
-      (f.lazy_static_0_2_11.spin_no_std or false) ||
-      (lazy_static_0_2_11.spin_no_std or false);
-  }) [];
-  lazy_static_1_0_0 = { features?(lazy_static_1_0_0_features {}) }: lazy_static_1_0_0_ {
-    dependencies = mapFeatures features ([]);
-    features = mkFeatures (features.lazy_static_1_0_0 or {});
-  };
-  lazy_static_1_0_0_features = f: updateFeatures f (rec {
-    lazy_static_1_0_0.compiletest_rs =
-      (f.lazy_static_1_0_0.compiletest_rs or false) ||
-      (f.lazy_static_1_0_0.compiletest or false) ||
-      (lazy_static_1_0_0.compiletest or false);
-    lazy_static_1_0_0.default = (f.lazy_static_1_0_0.default or true);
-    lazy_static_1_0_0.nightly =
-      (f.lazy_static_1_0_0.nightly or false) ||
-      (f.lazy_static_1_0_0.spin_no_std or false) ||
-      (lazy_static_1_0_0.spin_no_std or false);
-    lazy_static_1_0_0.spin =
-      (f.lazy_static_1_0_0.spin or false) ||
-      (f.lazy_static_1_0_0.spin_no_std or false) ||
-      (lazy_static_1_0_0.spin_no_std or false);
-  }) [];
-  lazycell_0_6_0 = { features?(lazycell_0_6_0_features {}) }: lazycell_0_6_0_ {
-    dependencies = mapFeatures features ([]);
-    features = mkFeatures (features.lazycell_0_6_0 or {});
-  };
-  lazycell_0_6_0_features = f: updateFeatures f (rec {
-    lazycell_0_6_0.clippy =
-      (f.lazycell_0_6_0.clippy or false) ||
-      (f.lazycell_0_6_0."nightly-testing" or false) ||
-      (lazycell_0_6_0."nightly-testing" or false);
-    lazycell_0_6_0.default = (f.lazycell_0_6_0.default or true);
-    lazycell_0_6_0.nightly =
-      (f.lazycell_0_6_0.nightly or false) ||
-      (f.lazycell_0_6_0."nightly-testing" or false) ||
-      (lazycell_0_6_0."nightly-testing" or false);
-  }) [];
-  libc_0_2_41 = { features?(libc_0_2_41_features {}) }: libc_0_2_41_ {
-    features = mkFeatures (features.libc_0_2_41 or {});
-  };
-  libc_0_2_41_features = f: updateFeatures f (rec {
-    libc_0_2_41.default = (f.libc_0_2_41.default or true);
-    libc_0_2_41.use_std =
-      (f.libc_0_2_41.use_std or false) ||
-      (f.libc_0_2_41.default or false) ||
-      (libc_0_2_41.default or false);
-  }) [];
-  libflate_0_1_14 = { features?(libflate_0_1_14_features {}) }: libflate_0_1_14_ {
-    dependencies = mapFeatures features ([ adler32_1_0_2 byteorder_1_2_3 crc_1_8_1 ]);
-  };
-  libflate_0_1_14_features = f: updateFeatures f (rec {
-    adler32_1_0_2.default = true;
-    byteorder_1_2_3.default = true;
-    crc_1_8_1.default = true;
-    libflate_0_1_14.default = (f.libflate_0_1_14.default or true);
-  }) [ adler32_1_0_2_features byteorder_1_2_3_features crc_1_8_1_features ];
-  linked_hash_map_0_4_2 = { features?(linked_hash_map_0_4_2_features {}) }: linked_hash_map_0_4_2_ {
-    dependencies = mapFeatures features ([]);
-    features = mkFeatures (features.linked_hash_map_0_4_2 or {});
-  };
-  linked_hash_map_0_4_2_features = f: updateFeatures f (rec {
-    linked_hash_map_0_4_2.default = (f.linked_hash_map_0_4_2.default or true);
-    linked_hash_map_0_4_2.heapsize =
-      (f.linked_hash_map_0_4_2.heapsize or false) ||
-      (f.linked_hash_map_0_4_2.heapsize_impl or false) ||
-      (linked_hash_map_0_4_2.heapsize_impl or false);
-    linked_hash_map_0_4_2.serde =
-      (f.linked_hash_map_0_4_2.serde or false) ||
-      (f.linked_hash_map_0_4_2.serde_impl or false) ||
-      (linked_hash_map_0_4_2.serde_impl or false);
-    linked_hash_map_0_4_2.serde_test =
-      (f.linked_hash_map_0_4_2.serde_test or false) ||
-      (f.linked_hash_map_0_4_2.serde_impl or false) ||
-      (linked_hash_map_0_4_2.serde_impl or false);
-  }) [];
-  log_0_3_9 = { features?(log_0_3_9_features {}) }: log_0_3_9_ {
-    dependencies = mapFeatures features ([ log_0_4_1 ]);
-    features = mkFeatures (features.log_0_3_9 or {});
-  };
-  log_0_3_9_features = f: updateFeatures f (rec {
-    log_0_3_9.default = (f.log_0_3_9.default or true);
-    log_0_3_9.use_std =
-      (f.log_0_3_9.use_std or false) ||
-      (f.log_0_3_9.default or false) ||
-      (log_0_3_9.default or false);
-    log_0_4_1.default = true;
-    log_0_4_1.max_level_debug =
-      (f.log_0_4_1.max_level_debug or false) ||
-      (log_0_3_9.max_level_debug or false) ||
-      (f.log_0_3_9.max_level_debug or false);
-    log_0_4_1.max_level_error =
-      (f.log_0_4_1.max_level_error or false) ||
-      (log_0_3_9.max_level_error or false) ||
-      (f.log_0_3_9.max_level_error or false);
-    log_0_4_1.max_level_info =
-      (f.log_0_4_1.max_level_info or false) ||
-      (log_0_3_9.max_level_info or false) ||
-      (f.log_0_3_9.max_level_info or false);
-    log_0_4_1.max_level_off =
-      (f.log_0_4_1.max_level_off or false) ||
-      (log_0_3_9.max_level_off or false) ||
-      (f.log_0_3_9.max_level_off or false);
-    log_0_4_1.max_level_trace =
-      (f.log_0_4_1.max_level_trace or false) ||
-      (log_0_3_9.max_level_trace or false) ||
-      (f.log_0_3_9.max_level_trace or false);
-    log_0_4_1.max_level_warn =
-      (f.log_0_4_1.max_level_warn or false) ||
-      (log_0_3_9.max_level_warn or false) ||
-      (f.log_0_3_9.max_level_warn or false);
-    log_0_4_1.release_max_level_debug =
-      (f.log_0_4_1.release_max_level_debug or false) ||
-      (log_0_3_9.release_max_level_debug or false) ||
-      (f.log_0_3_9.release_max_level_debug or false);
-    log_0_4_1.release_max_level_error =
-      (f.log_0_4_1.release_max_level_error or false) ||
-      (log_0_3_9.release_max_level_error or false) ||
-      (f.log_0_3_9.release_max_level_error or false);
-    log_0_4_1.release_max_level_info =
-      (f.log_0_4_1.release_max_level_info or false) ||
-      (log_0_3_9.release_max_level_info or false) ||
-      (f.log_0_3_9.release_max_level_info or false);
-    log_0_4_1.release_max_level_off =
-      (f.log_0_4_1.release_max_level_off or false) ||
-      (log_0_3_9.release_max_level_off or false) ||
-      (f.log_0_3_9.release_max_level_off or false);
-    log_0_4_1.release_max_level_trace =
-      (f.log_0_4_1.release_max_level_trace or false) ||
-      (log_0_3_9.release_max_level_trace or false) ||
-      (f.log_0_3_9.release_max_level_trace or false);
-    log_0_4_1.release_max_level_warn =
-      (f.log_0_4_1.release_max_level_warn or false) ||
-      (log_0_3_9.release_max_level_warn or false) ||
-      (f.log_0_3_9.release_max_level_warn or false);
-    log_0_4_1.std =
-      (f.log_0_4_1.std or false) ||
-      (log_0_3_9.use_std or false) ||
-      (f.log_0_3_9.use_std or false);
-  }) [ log_0_4_1_features ];
-  log_0_4_1 = { features?(log_0_4_1_features {}) }: log_0_4_1_ {
-    dependencies = mapFeatures features ([ cfg_if_0_1_3 ]);
-    features = mkFeatures (features.log_0_4_1 or {});
-  };
-  log_0_4_1_features = f: updateFeatures f (rec {
-    cfg_if_0_1_3.default = true;
-    log_0_4_1.default = (f.log_0_4_1.default or true);
-  }) [ cfg_if_0_1_3_features ];
-  lru_cache_0_1_1 = { features?(lru_cache_0_1_1_features {}) }: lru_cache_0_1_1_ {
-    dependencies = mapFeatures features ([ linked_hash_map_0_4_2 ]);
-    features = mkFeatures (features.lru_cache_0_1_1 or {});
-  };
-  lru_cache_0_1_1_features = f: updateFeatures f (rec {
-    linked_hash_map_0_4_2.default = true;
-    linked_hash_map_0_4_2.heapsize_impl =
-      (f.linked_hash_map_0_4_2.heapsize_impl or false) ||
-      (lru_cache_0_1_1.heapsize_impl or false) ||
-      (f.lru_cache_0_1_1.heapsize_impl or false);
-    lru_cache_0_1_1.default = (f.lru_cache_0_1_1.default or true);
-    lru_cache_0_1_1.heapsize =
-      (f.lru_cache_0_1_1.heapsize or false) ||
-      (f.lru_cache_0_1_1.heapsize_impl or false) ||
-      (lru_cache_0_1_1.heapsize_impl or false);
-  }) [ linked_hash_map_0_4_2_features ];
-  matches_0_1_6 = { features?(matches_0_1_6_features {}) }: matches_0_1_6_ {};
-  matches_0_1_6_features = f: updateFeatures f (rec {
-    matches_0_1_6.default = (f.matches_0_1_6.default or true);
-  }) [];
-  md5_0_3_7 = { features?(md5_0_3_7_features {}) }: md5_0_3_7_ {};
-  md5_0_3_7_features = f: updateFeatures f (rec {
-    md5_0_3_7.default = (f.md5_0_3_7.default or true);
-  }) [];
-  memchr_1_0_2 = { features?(memchr_1_0_2_features {}) }: memchr_1_0_2_ {
-    dependencies = mapFeatures features ([ ]
-      ++ (if features.memchr_1_0_2.libc or false then [ libc_0_2_41 ] else []));
-    features = mkFeatures (features.memchr_1_0_2 or {});
-  };
-  memchr_1_0_2_features = f: updateFeatures f (rec {
-    libc_0_2_41.default = (f.libc_0_2_41.default or false);
-    libc_0_2_41.use_std =
-      (f.libc_0_2_41.use_std or false) ||
-      (memchr_1_0_2.use_std or false) ||
-      (f.memchr_1_0_2.use_std or false);
-    memchr_1_0_2.default = (f.memchr_1_0_2.default or true);
-    memchr_1_0_2.libc =
-      (f.memchr_1_0_2.libc or false) ||
-      (f.memchr_1_0_2.default or false) ||
-      (memchr_1_0_2.default or false) ||
-      (f.memchr_1_0_2.use_std or false) ||
-      (memchr_1_0_2.use_std or false);
-    memchr_1_0_2.use_std =
-      (f.memchr_1_0_2.use_std or false) ||
-      (f.memchr_1_0_2.default or false) ||
-      (memchr_1_0_2.default or false);
-  }) [ libc_0_2_41_features ];
-  memchr_2_0_1 = { features?(memchr_2_0_1_features {}) }: memchr_2_0_1_ {
-    dependencies = mapFeatures features ([ ]
-      ++ (if features.memchr_2_0_1.libc or false then [ libc_0_2_41 ] else []));
-    features = mkFeatures (features.memchr_2_0_1 or {});
-  };
-  memchr_2_0_1_features = f: updateFeatures f (rec {
-    libc_0_2_41.default = (f.libc_0_2_41.default or false);
-    libc_0_2_41.use_std =
-      (f.libc_0_2_41.use_std or false) ||
-      (memchr_2_0_1.use_std or false) ||
-      (f.memchr_2_0_1.use_std or false);
-    memchr_2_0_1.default = (f.memchr_2_0_1.default or true);
-    memchr_2_0_1.libc =
-      (f.memchr_2_0_1.libc or false) ||
-      (f.memchr_2_0_1.default or false) ||
-      (memchr_2_0_1.default or false) ||
-      (f.memchr_2_0_1.use_std or false) ||
-      (memchr_2_0_1.use_std or false);
-    memchr_2_0_1.use_std =
-      (f.memchr_2_0_1.use_std or false) ||
-      (f.memchr_2_0_1.default or false) ||
-      (memchr_2_0_1.default or false);
-  }) [ libc_0_2_41_features ];
-  memoffset_0_1_0 = { features?(memoffset_0_1_0_features {}) }: memoffset_0_1_0_ {
-    features = mkFeatures (features.memoffset_0_1_0 or {});
-  };
-  memoffset_0_1_0_features = f: updateFeatures f (rec {
-    memoffset_0_1_0.default = (f.memoffset_0_1_0.default or true);
-    memoffset_0_1_0.std =
-      (f.memoffset_0_1_0.std or false) ||
-      (f.memoffset_0_1_0.default or false) ||
-      (memoffset_0_1_0.default or false);
-  }) [];
-  memoffset_0_2_1 = { features?(memoffset_0_2_1_features {}) }: memoffset_0_2_1_ {};
-  memoffset_0_2_1_features = f: updateFeatures f (rec {
-    memoffset_0_2_1.default = (f.memoffset_0_2_1.default or true);
-  }) [];
-  mime_0_3_7 = { features?(mime_0_3_7_features {}) }: mime_0_3_7_ {
-    dependencies = mapFeatures features ([ unicase_2_1_0 ]);
-  };
-  mime_0_3_7_features = f: updateFeatures f (rec {
-    mime_0_3_7.default = (f.mime_0_3_7.default or true);
-    unicase_2_1_0.default = true;
-  }) [ unicase_2_1_0_features ];
-  mime_guess_2_0_0_alpha_4 = { features?(mime_guess_2_0_0_alpha_4_features {}) }: mime_guess_2_0_0_alpha_4_ {
-    dependencies = mapFeatures features ([ mime_0_3_7 phf_0_7_22 unicase_1_4_2 ]);
-    buildDependencies = mapFeatures features ([ phf_codegen_0_7_22 unicase_1_4_2 ]);
-    features = mkFeatures (features.mime_guess_2_0_0_alpha_4 or {});
-  };
-  mime_guess_2_0_0_alpha_4_features = f: updateFeatures f (rec {
-    mime_0_3_7.default = true;
-    mime_guess_2_0_0_alpha_4.default = (f.mime_guess_2_0_0_alpha_4.default or true);
-    phf_0_7_22.default = true;
-    phf_0_7_22.unicase = true;
-    phf_codegen_0_7_22.default = true;
-    unicase_1_4_2.default = true;
-  }) [ mime_0_3_7_features phf_0_7_22_features unicase_1_4_2_features phf_codegen_0_7_22_features unicase_1_4_2_features ];
-  miniz_sys_0_1_10 = { features?(miniz_sys_0_1_10_features {}) }: miniz_sys_0_1_10_ {
-    dependencies = mapFeatures features ([ libc_0_2_41 ]);
-    buildDependencies = mapFeatures features ([ cc_1_0_15 ]);
-  };
-  miniz_sys_0_1_10_features = f: updateFeatures f (rec {
-    cc_1_0_15.default = true;
-    libc_0_2_41.default = true;
-    miniz_sys_0_1_10.default = (f.miniz_sys_0_1_10.default or true);
-  }) [ libc_0_2_41_features cc_1_0_15_features ];
-  mio_0_6_14 = { features?(mio_0_6_14_features {}) }: mio_0_6_14_ {
-    dependencies = mapFeatures features ([ iovec_0_1_2 lazycell_0_6_0 log_0_4_1 net2_0_2_32 slab_0_4_0 ])
-      ++ (if kernel == "fuchsia" then mapFeatures features ([ fuchsia_zircon_0_3_3 fuchsia_zircon_sys_0_3_3 ]) else [])
-      ++ (if (kernel == "linux" || kernel == "darwin") then mapFeatures features ([ libc_0_2_41 ]) else [])
-      ++ (if kernel == "windows" then mapFeatures features ([ kernel32_sys_0_2_2 miow_0_2_1 winapi_0_2_8 ]) else []);
-    features = mkFeatures (features.mio_0_6_14 or {});
-  };
-  mio_0_6_14_features = f: updateFeatures f (rec {
-    fuchsia_zircon_0_3_3.default = true;
-    fuchsia_zircon_sys_0_3_3.default = true;
-    iovec_0_1_2.default = true;
-    kernel32_sys_0_2_2.default = true;
-    lazycell_0_6_0.default = true;
-    libc_0_2_41.default = true;
-    log_0_4_1.default = true;
-    mio_0_6_14."with-deprecated" =
-      (f.mio_0_6_14."with-deprecated" or false) ||
-      (f.mio_0_6_14.default or false) ||
-      (mio_0_6_14.default or false);
-    mio_0_6_14.default = (f.mio_0_6_14.default or true);
-    miow_0_2_1.default = true;
-    net2_0_2_32.default = true;
-    slab_0_4_0.default = true;
-    winapi_0_2_8.default = true;
-  }) [ iovec_0_1_2_features lazycell_0_6_0_features log_0_4_1_features net2_0_2_32_features slab_0_4_0_features fuchsia_zircon_0_3_3_features fuchsia_zircon_sys_0_3_3_features libc_0_2_41_features kernel32_sys_0_2_2_features miow_0_2_1_features winapi_0_2_8_features ];
-  mio_uds_0_6_6 = { features?(mio_uds_0_6_6_features {}) }: mio_uds_0_6_6_ {
-    dependencies = (if (kernel == "linux" || kernel == "darwin") then mapFeatures features ([ iovec_0_1_2 libc_0_2_41 mio_0_6_14 ]) else []);
-  };
-  mio_uds_0_6_6_features = f: updateFeatures f (rec {
-    iovec_0_1_2.default = true;
-    libc_0_2_41.default = true;
-    mio_0_6_14.default = true;
-    mio_uds_0_6_6.default = (f.mio_uds_0_6_6.default or true);
-  }) [ iovec_0_1_2_features libc_0_2_41_features mio_0_6_14_features ];
-  miow_0_2_1 = { features?(miow_0_2_1_features {}) }: miow_0_2_1_ {
-    dependencies = mapFeatures features ([ kernel32_sys_0_2_2 net2_0_2_32 winapi_0_2_8 ws2_32_sys_0_2_1 ]);
-  };
-  miow_0_2_1_features = f: updateFeatures f (rec {
-    kernel32_sys_0_2_2.default = true;
-    miow_0_2_1.default = (f.miow_0_2_1.default or true);
-    net2_0_2_32.default = (f.net2_0_2_32.default or false);
-    winapi_0_2_8.default = true;
-    ws2_32_sys_0_2_1.default = true;
-  }) [ kernel32_sys_0_2_2_features net2_0_2_32_features winapi_0_2_8_features ws2_32_sys_0_2_1_features ];
-  native_tls_0_1_5 = { features?(native_tls_0_1_5_features {}) }: native_tls_0_1_5_ {
-    dependencies = mapFeatures features ([ lazy_static_0_2_11 ])
-      ++ (if kernel == "darwin" || kernel == "ios" then mapFeatures features ([ libc_0_2_41 security_framework_0_1_16 security_framework_sys_0_1_16 tempdir_0_3_7 ]) else [])
-      ++ (if !(kernel == "windows" || kernel == "darwin" || kernel == "ios") then mapFeatures features ([ openssl_0_9_24 ]) else [])
-      ++ (if kernel == "windows" then mapFeatures features ([ schannel_0_1_12 ]) else []);
-  };
-  native_tls_0_1_5_features = f: updateFeatures f (rec {
-    lazy_static_0_2_11.default = true;
-    libc_0_2_41.default = true;
-    native_tls_0_1_5.default = (f.native_tls_0_1_5.default or true);
-    openssl_0_9_24.default = true;
-    schannel_0_1_12.default = true;
-    security_framework_0_1_16."OSX_10_8" = true;
-    security_framework_0_1_16.default = true;
-    security_framework_sys_0_1_16.default = true;
-    tempdir_0_3_7.default = true;
-  }) [ lazy_static_0_2_11_features libc_0_2_41_features security_framework_0_1_16_features security_framework_sys_0_1_16_features tempdir_0_3_7_features openssl_0_9_24_features schannel_0_1_12_features ];
-  net2_0_2_32 = { features?(net2_0_2_32_features {}) }: net2_0_2_32_ {
-    dependencies = mapFeatures features ([ cfg_if_0_1_3 ])
-      ++ (if (kernel == "linux" || kernel == "darwin") then mapFeatures features ([ libc_0_2_41 ]) else [])
-      ++ (if kernel == "windows" then mapFeatures features ([ winapi_0_3_4 ]) else [])
-      ++ (if kernel == "i686-apple-darwin" then mapFeatures features ([ libc_0_2_41 ]) else [])
-      ++ (if kernel == "i686-unknown-linux-gnu" then mapFeatures features ([ libc_0_2_41 ]) else [])
-      ++ (if kernel == "x86_64-apple-darwin" then mapFeatures features ([ libc_0_2_41 ]) else [])
-      ++ (if kernel == "x86_64-unknown-linux-gnu" then mapFeatures features ([ libc_0_2_41 ]) else []);
-    features = mkFeatures (features.net2_0_2_32 or {});
-  };
-  net2_0_2_32_features = f: updateFeatures f (rec {
-    cfg_if_0_1_3.default = true;
-    libc_0_2_41.default = true;
-    net2_0_2_32.default = (f.net2_0_2_32.default or true);
-    net2_0_2_32.duration =
-      (f.net2_0_2_32.duration or false) ||
-      (f.net2_0_2_32.default or false) ||
-      (net2_0_2_32.default or false);
-    winapi_0_3_4."winsock2" = true;
-    winapi_0_3_4."ws2def" = true;
-    winapi_0_3_4."ws2ipdef" = true;
-    winapi_0_3_4."ws2tcpip" = true;
-    winapi_0_3_4.default = true;
-    winapi_0_3_4.handleapi = true;
-  }) [ cfg_if_0_1_3_features libc_0_2_41_features winapi_0_3_4_features libc_0_2_41_features libc_0_2_41_features libc_0_2_41_features libc_0_2_41_features ];
-  nodrop_0_1_12 = { features?(nodrop_0_1_12_features {}) }: nodrop_0_1_12_ {
-    dependencies = mapFeatures features ([]);
-    features = mkFeatures (features.nodrop_0_1_12 or {});
-  };
-  nodrop_0_1_12_features = f: updateFeatures f (rec {
-    nodrop_0_1_12."nodrop-union" =
-      (f.nodrop_0_1_12."nodrop-union" or false) ||
-      (f.nodrop_0_1_12.use_union or false) ||
-      (nodrop_0_1_12.use_union or false);
-    nodrop_0_1_12.default = (f.nodrop_0_1_12.default or true);
-    nodrop_0_1_12.std =
-      (f.nodrop_0_1_12.std or false) ||
-      (f.nodrop_0_1_12.default or false) ||
-      (nodrop_0_1_12.default or false);
-  }) [];
-  nom_3_2_1 = { features?(nom_3_2_1_features {}) }: nom_3_2_1_ {
-    dependencies = mapFeatures features ([ memchr_1_0_2 ]);
-    features = mkFeatures (features.nom_3_2_1 or {});
-  };
-  nom_3_2_1_features = f: updateFeatures f (rec {
-    memchr_1_0_2.default = (f.memchr_1_0_2.default or false);
-    memchr_1_0_2.use_std =
-      (f.memchr_1_0_2.use_std or false) ||
-      (nom_3_2_1.std or false) ||
-      (f.nom_3_2_1.std or false);
-    nom_3_2_1.compiler_error =
-      (f.nom_3_2_1.compiler_error or false) ||
-      (f.nom_3_2_1.nightly or false) ||
-      (nom_3_2_1.nightly or false);
-    nom_3_2_1.default = (f.nom_3_2_1.default or true);
-    nom_3_2_1.lazy_static =
-      (f.nom_3_2_1.lazy_static or false) ||
-      (f.nom_3_2_1.regexp_macros or false) ||
-      (nom_3_2_1.regexp_macros or false);
-    nom_3_2_1.regex =
-      (f.nom_3_2_1.regex or false) ||
-      (f.nom_3_2_1.regexp or false) ||
-      (nom_3_2_1.regexp or false);
-    nom_3_2_1.regexp =
-      (f.nom_3_2_1.regexp or false) ||
-      (f.nom_3_2_1.regexp_macros or false) ||
-      (nom_3_2_1.regexp_macros or false);
-    nom_3_2_1.std =
-      (f.nom_3_2_1.std or false) ||
-      (f.nom_3_2_1.default or false) ||
-      (nom_3_2_1.default or false);
-    nom_3_2_1.stream =
-      (f.nom_3_2_1.stream or false) ||
-      (f.nom_3_2_1.default or false) ||
-      (nom_3_2_1.default or false);
-  }) [ memchr_1_0_2_features ];
-  num_integer_0_1_38 = { features?(num_integer_0_1_38_features {}) }: num_integer_0_1_38_ {
-    dependencies = mapFeatures features ([ num_traits_0_2_4 ]);
-    features = mkFeatures (features.num_integer_0_1_38 or {});
-  };
-  num_integer_0_1_38_features = f: updateFeatures f (rec {
-    num_integer_0_1_38.default = (f.num_integer_0_1_38.default or true);
-    num_integer_0_1_38.std =
-      (f.num_integer_0_1_38.std or false) ||
-      (f.num_integer_0_1_38.default or false) ||
-      (num_integer_0_1_38.default or false);
-    num_traits_0_2_4."i128" =
-      (f.num_traits_0_2_4."i128" or false) ||
-      (num_integer_0_1_38."i128" or false) ||
-      (f.num_integer_0_1_38."i128" or false);
-    num_traits_0_2_4.default = (f.num_traits_0_2_4.default or false);
-    num_traits_0_2_4.std =
-      (f.num_traits_0_2_4.std or false) ||
-      (num_integer_0_1_38.std or false) ||
-      (f.num_integer_0_1_38.std or false);
-  }) [ num_traits_0_2_4_features ];
-  num_traits_0_2_4 = { features?(num_traits_0_2_4_features {}) }: num_traits_0_2_4_ {
-    features = mkFeatures (features.num_traits_0_2_4 or {});
-  };
-  num_traits_0_2_4_features = f: updateFeatures f (rec {
-    num_traits_0_2_4.default = (f.num_traits_0_2_4.default or true);
-    num_traits_0_2_4.std =
-      (f.num_traits_0_2_4.std or false) ||
-      (f.num_traits_0_2_4.default or false) ||
-      (num_traits_0_2_4.default or false);
-  }) [];
-  num_cpus_1_8_0 = { features?(num_cpus_1_8_0_features {}) }: num_cpus_1_8_0_ {
-    dependencies = mapFeatures features ([ libc_0_2_41 ]);
-  };
-  num_cpus_1_8_0_features = f: updateFeatures f (rec {
-    libc_0_2_41.default = true;
-    num_cpus_1_8_0.default = (f.num_cpus_1_8_0.default or true);
-  }) [ libc_0_2_41_features ];
-  openssl_0_9_24 = { features?(openssl_0_9_24_features {}) }: openssl_0_9_24_ {
-    dependencies = mapFeatures features ([ bitflags_0_9_1 foreign_types_0_3_2 lazy_static_1_0_0 libc_0_2_41 openssl_sys_0_9_31 ]);
-    features = mkFeatures (features.openssl_0_9_24 or {});
-  };
-  openssl_0_9_24_features = f: updateFeatures f (rec {
-    bitflags_0_9_1.default = true;
-    foreign_types_0_3_2.default = true;
-    lazy_static_1_0_0.default = true;
-    libc_0_2_41.default = true;
-    openssl_0_9_24.default = (f.openssl_0_9_24.default or true);
-    openssl_sys_0_9_31.default = true;
-  }) [ bitflags_0_9_1_features foreign_types_0_3_2_features lazy_static_1_0_0_features libc_0_2_41_features openssl_sys_0_9_31_features ];
-  openssl_sys_0_9_31 = { features?(openssl_sys_0_9_31_features {}) }: openssl_sys_0_9_31_ {
-    dependencies = mapFeatures features ([ libc_0_2_41 ])
-      ++ (if abi == "msvc" then mapFeatures features ([]) else []);
-    buildDependencies = mapFeatures features ([ cc_1_0_15 pkg_config_0_3_11 ]);
-  };
-  openssl_sys_0_9_31_features = f: updateFeatures f (rec {
-    cc_1_0_15.default = true;
-    libc_0_2_41.default = true;
-    openssl_sys_0_9_31.default = (f.openssl_sys_0_9_31.default or true);
-    pkg_config_0_3_11.default = true;
-  }) [ libc_0_2_41_features cc_1_0_15_features pkg_config_0_3_11_features ];
-  owning_ref_0_3_3 = { features?(owning_ref_0_3_3_features {}) }: owning_ref_0_3_3_ {
-    dependencies = mapFeatures features ([ stable_deref_trait_1_0_0 ]);
-  };
-  owning_ref_0_3_3_features = f: updateFeatures f (rec {
-    owning_ref_0_3_3.default = (f.owning_ref_0_3_3.default or true);
-    stable_deref_trait_1_0_0.default = true;
-  }) [ stable_deref_trait_1_0_0_features ];
-  parking_lot_0_4_8 = { features?(parking_lot_0_4_8_features {}) }: parking_lot_0_4_8_ {
-    dependencies = mapFeatures features ([ parking_lot_core_0_2_14 ]
-      ++ (if features.parking_lot_0_4_8.owning_ref or false then [ owning_ref_0_3_3 ] else []));
-    features = mkFeatures (features.parking_lot_0_4_8 or {});
-  };
-  parking_lot_0_4_8_features = f: updateFeatures f (rec {
-    owning_ref_0_3_3.default = true;
-    parking_lot_0_4_8.default = (f.parking_lot_0_4_8.default or true);
-    parking_lot_0_4_8.owning_ref =
-      (f.parking_lot_0_4_8.owning_ref or false) ||
-      (f.parking_lot_0_4_8.default or false) ||
-      (parking_lot_0_4_8.default or false);
-    parking_lot_core_0_2_14.deadlock_detection =
-      (f.parking_lot_core_0_2_14.deadlock_detection or false) ||
-      (parking_lot_0_4_8.deadlock_detection or false) ||
-      (f.parking_lot_0_4_8.deadlock_detection or false);
-    parking_lot_core_0_2_14.default = true;
-    parking_lot_core_0_2_14.nightly =
-      (f.parking_lot_core_0_2_14.nightly or false) ||
-      (parking_lot_0_4_8.nightly or false) ||
-      (f.parking_lot_0_4_8.nightly or false);
-  }) [ owning_ref_0_3_3_features parking_lot_core_0_2_14_features ];
-  parking_lot_core_0_2_14 = { features?(parking_lot_core_0_2_14_features {}) }: parking_lot_core_0_2_14_ {
-    dependencies = mapFeatures features ([ rand_0_4_2 smallvec_0_6_1 ])
-      ++ (if (kernel == "linux" || kernel == "darwin") then mapFeatures features ([ libc_0_2_41 ]) else [])
-      ++ (if kernel == "windows" then mapFeatures features ([ winapi_0_3_4 ]) else []);
-    features = mkFeatures (features.parking_lot_core_0_2_14 or {});
-  };
-  parking_lot_core_0_2_14_features = f: updateFeatures f (rec {
-    libc_0_2_41.default = true;
-    parking_lot_core_0_2_14."thread-id" =
-      (f.parking_lot_core_0_2_14."thread-id" or false) ||
-      (f.parking_lot_core_0_2_14.deadlock_detection or false) ||
-      (parking_lot_core_0_2_14.deadlock_detection or false);
-    parking_lot_core_0_2_14.backtrace =
-      (f.parking_lot_core_0_2_14.backtrace or false) ||
-      (f.parking_lot_core_0_2_14.deadlock_detection or false) ||
-      (parking_lot_core_0_2_14.deadlock_detection or false);
-    parking_lot_core_0_2_14.default = (f.parking_lot_core_0_2_14.default or true);
-    parking_lot_core_0_2_14.petgraph =
-      (f.parking_lot_core_0_2_14.petgraph or false) ||
-      (f.parking_lot_core_0_2_14.deadlock_detection or false) ||
-      (parking_lot_core_0_2_14.deadlock_detection or false);
-    rand_0_4_2.default = true;
-    smallvec_0_6_1.default = true;
-    winapi_0_3_4.default = true;
-    winapi_0_3_4.errhandlingapi = true;
-    winapi_0_3_4.handleapi = true;
-    winapi_0_3_4.minwindef = true;
-    winapi_0_3_4.ntstatus = true;
-    winapi_0_3_4.winbase = true;
-    winapi_0_3_4.winerror = true;
-    winapi_0_3_4.winnt = true;
-  }) [ rand_0_4_2_features smallvec_0_6_1_features libc_0_2_41_features winapi_0_3_4_features ];
-  percent_encoding_1_0_1 = { features?(percent_encoding_1_0_1_features {}) }: percent_encoding_1_0_1_ {};
-  percent_encoding_1_0_1_features = f: updateFeatures f (rec {
-    percent_encoding_1_0_1.default = (f.percent_encoding_1_0_1.default or true);
-  }) [];
-  pest_1_0_6 = { features?(pest_1_0_6_features {}) }: pest_1_0_6_ {};
-  pest_1_0_6_features = f: updateFeatures f (rec {
-    pest_1_0_6.default = (f.pest_1_0_6.default or true);
-  }) [];
-  pest_derive_1_0_7 = { features?(pest_derive_1_0_7_features {}) }: pest_derive_1_0_7_ {
-    dependencies = mapFeatures features ([ pest_1_0_6 quote_0_3_15 syn_0_11_11 ]);
-  };
-  pest_derive_1_0_7_features = f: updateFeatures f (rec {
-    pest_1_0_6.default = true;
-    pest_derive_1_0_7.default = (f.pest_derive_1_0_7.default or true);
-    quote_0_3_15.default = true;
-    syn_0_11_11.default = true;
-  }) [ pest_1_0_6_features quote_0_3_15_features syn_0_11_11_features ];
-  phf_0_7_22 = { features?(phf_0_7_22_features {}) }: phf_0_7_22_ {
-    dependencies = mapFeatures features ([ phf_shared_0_7_22 ]);
-    features = mkFeatures (features.phf_0_7_22 or {});
-  };
-  phf_0_7_22_features = f: updateFeatures f (rec {
-    phf_0_7_22.default = (f.phf_0_7_22.default or true);
-    phf_shared_0_7_22.core =
-      (f.phf_shared_0_7_22.core or false) ||
-      (phf_0_7_22.core or false) ||
-      (f.phf_0_7_22.core or false);
-    phf_shared_0_7_22.default = true;
-    phf_shared_0_7_22.unicase =
-      (f.phf_shared_0_7_22.unicase or false) ||
-      (phf_0_7_22.unicase or false) ||
-      (f.phf_0_7_22.unicase or false);
-  }) [ phf_shared_0_7_22_features ];
-  phf_codegen_0_7_22 = { features?(phf_codegen_0_7_22_features {}) }: phf_codegen_0_7_22_ {
-    dependencies = mapFeatures features ([ phf_generator_0_7_22 phf_shared_0_7_22 ]);
-  };
-  phf_codegen_0_7_22_features = f: updateFeatures f (rec {
-    phf_codegen_0_7_22.default = (f.phf_codegen_0_7_22.default or true);
-    phf_generator_0_7_22.default = true;
-    phf_shared_0_7_22.default = true;
-  }) [ phf_generator_0_7_22_features phf_shared_0_7_22_features ];
-  phf_generator_0_7_22 = { features?(phf_generator_0_7_22_features {}) }: phf_generator_0_7_22_ {
-    dependencies = mapFeatures features ([ phf_shared_0_7_22 rand_0_4_2 ]);
-  };
-  phf_generator_0_7_22_features = f: updateFeatures f (rec {
-    phf_generator_0_7_22.default = (f.phf_generator_0_7_22.default or true);
-    phf_shared_0_7_22.default = true;
-    rand_0_4_2.default = true;
-  }) [ phf_shared_0_7_22_features rand_0_4_2_features ];
-  phf_shared_0_7_22 = { features?(phf_shared_0_7_22_features {}) }: phf_shared_0_7_22_ {
-    dependencies = mapFeatures features ([ siphasher_0_2_2 ]
-      ++ (if features.phf_shared_0_7_22.unicase or false then [ unicase_1_4_2 ] else []));
-    features = mkFeatures (features.phf_shared_0_7_22 or {});
-  };
-  phf_shared_0_7_22_features = f: updateFeatures f (rec {
-    phf_shared_0_7_22.default = (f.phf_shared_0_7_22.default or true);
-    siphasher_0_2_2.default = true;
-    unicase_1_4_2.default = true;
-  }) [ siphasher_0_2_2_features unicase_1_4_2_features ];
-  pkg_config_0_3_11 = { features?(pkg_config_0_3_11_features {}) }: pkg_config_0_3_11_ {};
-  pkg_config_0_3_11_features = f: updateFeatures f (rec {
-    pkg_config_0_3_11.default = (f.pkg_config_0_3_11.default or true);
-  }) [];
-  pq_sys_0_4_4 = { features?(pq_sys_0_4_4_features {}) }: pq_sys_0_4_4_ {
-    dependencies = (if abi == "msvc" then mapFeatures features ([]) else []);
-    buildDependencies = mapFeatures features ([]);
-  };
-  pq_sys_0_4_4_features = f: updateFeatures f (rec {
-    pq_sys_0_4_4.default = (f.pq_sys_0_4_4.default or true);
-  }) [];
-  proc_macro2_0_2_3 = { features?(proc_macro2_0_2_3_features {}) }: proc_macro2_0_2_3_ {
-    dependencies = mapFeatures features ([ unicode_xid_0_1_0 ]);
-    features = mkFeatures (features.proc_macro2_0_2_3 or {});
-  };
-  proc_macro2_0_2_3_features = f: updateFeatures f (rec {
-    proc_macro2_0_2_3."proc-macro" =
-      (f.proc_macro2_0_2_3."proc-macro" or false) ||
-      (f.proc_macro2_0_2_3.default or false) ||
-      (proc_macro2_0_2_3.default or false) ||
-      (f.proc_macro2_0_2_3.nightly or false) ||
-      (proc_macro2_0_2_3.nightly or false);
-    proc_macro2_0_2_3.default = (f.proc_macro2_0_2_3.default or true);
-    unicode_xid_0_1_0.default = true;
-  }) [ unicode_xid_0_1_0_features ];
-  proc_macro2_0_3_8 = { features?(proc_macro2_0_3_8_features {}) }: proc_macro2_0_3_8_ {
-    dependencies = mapFeatures features ([ unicode_xid_0_1_0 ]);
-    features = mkFeatures (features.proc_macro2_0_3_8 or {});
-  };
-  proc_macro2_0_3_8_features = f: updateFeatures f (rec {
-    proc_macro2_0_3_8."proc-macro" =
-      (f.proc_macro2_0_3_8."proc-macro" or false) ||
-      (f.proc_macro2_0_3_8.default or false) ||
-      (proc_macro2_0_3_8.default or false) ||
-      (f.proc_macro2_0_3_8.nightly or false) ||
-      (proc_macro2_0_3_8.nightly or false);
-    proc_macro2_0_3_8.default = (f.proc_macro2_0_3_8.default or true);
-    unicode_xid_0_1_0.default = true;
-  }) [ unicode_xid_0_1_0_features ];
-  proc_macro2_0_4_3 = { features?(proc_macro2_0_4_3_features {}) }: proc_macro2_0_4_3_ {
-    dependencies = mapFeatures features ([ unicode_xid_0_1_0 ]);
-    features = mkFeatures (features.proc_macro2_0_4_3 or {});
-  };
-  proc_macro2_0_4_3_features = f: updateFeatures f (rec {
-    proc_macro2_0_4_3."proc-macro" =
-      (f.proc_macro2_0_4_3."proc-macro" or false) ||
-      (f.proc_macro2_0_4_3.default or false) ||
-      (proc_macro2_0_4_3.default or false) ||
-      (f.proc_macro2_0_4_3.nightly or false) ||
-      (proc_macro2_0_4_3.nightly or false);
-    proc_macro2_0_4_3.default = (f.proc_macro2_0_4_3.default or true);
-    unicode_xid_0_1_0.default = true;
-  }) [ unicode_xid_0_1_0_features ];
-  pulldown_cmark_0_1_2 = { features?(pulldown_cmark_0_1_2_features {}) }: pulldown_cmark_0_1_2_ {
-    dependencies = mapFeatures features ([ bitflags_0_9_1 ]
-      ++ (if features.pulldown_cmark_0_1_2.getopts or false then [ getopts_0_2_17 ] else []));
-    features = mkFeatures (features.pulldown_cmark_0_1_2 or {});
-  };
-  pulldown_cmark_0_1_2_features = f: updateFeatures f (rec {
-    bitflags_0_9_1.default = true;
-    getopts_0_2_17.default = true;
-    pulldown_cmark_0_1_2.default = (f.pulldown_cmark_0_1_2.default or true);
-    pulldown_cmark_0_1_2.getopts =
-      (f.pulldown_cmark_0_1_2.getopts or false) ||
-      (f.pulldown_cmark_0_1_2.default or false) ||
-      (pulldown_cmark_0_1_2.default or false);
-  }) [ bitflags_0_9_1_features getopts_0_2_17_features ];
-  quick_error_1_2_1 = { features?(quick_error_1_2_1_features {}) }: quick_error_1_2_1_ {};
-  quick_error_1_2_1_features = f: updateFeatures f (rec {
-    quick_error_1_2_1.default = (f.quick_error_1_2_1.default or true);
-  }) [];
-  quote_0_3_15 = { features?(quote_0_3_15_features {}) }: quote_0_3_15_ {};
-  quote_0_3_15_features = f: updateFeatures f (rec {
-    quote_0_3_15.default = (f.quote_0_3_15.default or true);
-  }) [];
-  quote_0_4_2 = { features?(quote_0_4_2_features {}) }: quote_0_4_2_ {
-    dependencies = mapFeatures features ([ proc_macro2_0_2_3 ]);
-  };
-  quote_0_4_2_features = f: updateFeatures f (rec {
-    proc_macro2_0_2_3.default = true;
-    quote_0_4_2.default = (f.quote_0_4_2.default or true);
-  }) [ proc_macro2_0_2_3_features ];
-  quote_0_5_2 = { features?(quote_0_5_2_features {}) }: quote_0_5_2_ {
-    dependencies = mapFeatures features ([ proc_macro2_0_3_8 ]);
-    features = mkFeatures (features.quote_0_5_2 or {});
-  };
-  quote_0_5_2_features = f: updateFeatures f (rec {
-    proc_macro2_0_3_8."proc-macro" =
-      (f.proc_macro2_0_3_8."proc-macro" or false) ||
-      (quote_0_5_2."proc-macro" or false) ||
-      (f.quote_0_5_2."proc-macro" or false);
-    proc_macro2_0_3_8.default = (f.proc_macro2_0_3_8.default or false);
-    quote_0_5_2."proc-macro" =
-      (f.quote_0_5_2."proc-macro" or false) ||
-      (f.quote_0_5_2.default or false) ||
-      (quote_0_5_2.default or false);
-    quote_0_5_2.default = (f.quote_0_5_2.default or true);
-  }) [ proc_macro2_0_3_8_features ];
-  quote_0_6_2 = { features?(quote_0_6_2_features {}) }: quote_0_6_2_ {
-    dependencies = mapFeatures features ([ proc_macro2_0_4_3 ]);
-    features = mkFeatures (features.quote_0_6_2 or {});
-  };
-  quote_0_6_2_features = f: updateFeatures f (rec {
-    proc_macro2_0_4_3."proc-macro" =
-      (f.proc_macro2_0_4_3."proc-macro" or false) ||
-      (quote_0_6_2."proc-macro" or false) ||
-      (f.quote_0_6_2."proc-macro" or false);
-    proc_macro2_0_4_3.default = (f.proc_macro2_0_4_3.default or false);
-    quote_0_6_2."proc-macro" =
-      (f.quote_0_6_2."proc-macro" or false) ||
-      (f.quote_0_6_2.default or false) ||
-      (quote_0_6_2.default or false);
-    quote_0_6_2.default = (f.quote_0_6_2.default or true);
-  }) [ proc_macro2_0_4_3_features ];
-  r2d2_0_8_2 = { features?(r2d2_0_8_2_features {}) }: r2d2_0_8_2_ {
-    dependencies = mapFeatures features ([ antidote_1_0_0 log_0_4_1 scheduled_thread_pool_0_2_0 ]);
-  };
-  r2d2_0_8_2_features = f: updateFeatures f (rec {
-    antidote_1_0_0.default = true;
-    log_0_4_1.default = true;
-    r2d2_0_8_2.default = (f.r2d2_0_8_2.default or true);
-    scheduled_thread_pool_0_2_0.default = true;
-  }) [ antidote_1_0_0_features log_0_4_1_features scheduled_thread_pool_0_2_0_features ];
-  rand_0_3_22 = { features?(rand_0_3_22_features {}) }: rand_0_3_22_ {
-    dependencies = mapFeatures features ([ libc_0_2_41 rand_0_4_2 ])
-      ++ (if kernel == "fuchsia" then mapFeatures features ([ fuchsia_zircon_0_3_3 ]) else []);
-    features = mkFeatures (features.rand_0_3_22 or {});
-  };
-  rand_0_3_22_features = f: updateFeatures f (rec {
-    fuchsia_zircon_0_3_3.default = true;
-    libc_0_2_41.default = true;
-    rand_0_3_22."i128_support" =
-      (f.rand_0_3_22."i128_support" or false) ||
-      (f.rand_0_3_22.nightly or false) ||
-      (rand_0_3_22.nightly or false);
-    rand_0_3_22.default = (f.rand_0_3_22.default or true);
-    rand_0_4_2.default = true;
-  }) [ libc_0_2_41_features rand_0_4_2_features fuchsia_zircon_0_3_3_features ];
-  rand_0_4_2 = { features?(rand_0_4_2_features {}) }: rand_0_4_2_ {
-    dependencies = (if kernel == "fuchsia" then mapFeatures features ([ fuchsia_zircon_0_3_3 ]) else [])
-      ++ (if (kernel == "linux" || kernel == "darwin") then mapFeatures features ([ ]
-      ++ (if features.rand_0_4_2.libc or false then [ libc_0_2_41 ] else [])) else [])
-      ++ (if kernel == "windows" then mapFeatures features ([ winapi_0_3_4 ]) else []);
-    features = mkFeatures (features.rand_0_4_2 or {});
-  };
-  rand_0_4_2_features = f: updateFeatures f (rec {
-    fuchsia_zircon_0_3_3.default = true;
-    libc_0_2_41.default = true;
-    rand_0_4_2."i128_support" =
-      (f.rand_0_4_2."i128_support" or false) ||
-      (f.rand_0_4_2.nightly or false) ||
-      (rand_0_4_2.nightly or false);
-    rand_0_4_2.default = (f.rand_0_4_2.default or true);
-    rand_0_4_2.libc =
-      (f.rand_0_4_2.libc or false) ||
-      (f.rand_0_4_2.std or false) ||
-      (rand_0_4_2.std or false);
-    rand_0_4_2.std =
-      (f.rand_0_4_2.std or false) ||
-      (f.rand_0_4_2.default or false) ||
-      (rand_0_4_2.default or false);
-    winapi_0_3_4.default = true;
-    winapi_0_3_4.minwindef = true;
-    winapi_0_3_4.ntsecapi = true;
-    winapi_0_3_4.profileapi = true;
-    winapi_0_3_4.winnt = true;
-  }) [ fuchsia_zircon_0_3_3_features libc_0_2_41_features winapi_0_3_4_features ];
-  rayon_0_8_2 = { features?(rayon_0_8_2_features {}) }: rayon_0_8_2_ {
-    dependencies = mapFeatures features ([ rayon_core_1_4_0 ]);
-  };
-  rayon_0_8_2_features = f: updateFeatures f (rec {
-    rayon_0_8_2.default = (f.rayon_0_8_2.default or true);
-    rayon_core_1_4_0.default = true;
-  }) [ rayon_core_1_4_0_features ];
-  rayon_core_1_4_0 = { features?(rayon_core_1_4_0_features {}) }: rayon_core_1_4_0_ {
-    dependencies = mapFeatures features ([ crossbeam_deque_0_2_0 lazy_static_1_0_0 libc_0_2_41 num_cpus_1_8_0 rand_0_4_2 ]);
-  };
-  rayon_core_1_4_0_features = f: updateFeatures f (rec {
-    crossbeam_deque_0_2_0.default = true;
-    lazy_static_1_0_0.default = true;
-    libc_0_2_41.default = true;
-    num_cpus_1_8_0.default = true;
-    rand_0_4_2.default = true;
-    rayon_core_1_4_0.default = (f.rayon_core_1_4_0.default or true);
-  }) [ crossbeam_deque_0_2_0_features lazy_static_1_0_0_features libc_0_2_41_features num_cpus_1_8_0_features rand_0_4_2_features ];
-  redox_syscall_0_1_38 = { features?(redox_syscall_0_1_38_features {}) }: redox_syscall_0_1_38_ {};
-  redox_syscall_0_1_38_features = f: updateFeatures f (rec {
-    redox_syscall_0_1_38.default = (f.redox_syscall_0_1_38.default or true);
-  }) [];
-  redox_termios_0_1_1 = { features?(redox_termios_0_1_1_features {}) }: redox_termios_0_1_1_ {
-    dependencies = mapFeatures features ([ redox_syscall_0_1_38 ]);
-  };
-  redox_termios_0_1_1_features = f: updateFeatures f (rec {
-    redox_syscall_0_1_38.default = true;
-    redox_termios_0_1_1.default = (f.redox_termios_0_1_1.default or true);
-  }) [ redox_syscall_0_1_38_features ];
-  regex_0_2_11 = { features?(regex_0_2_11_features {}) }: regex_0_2_11_ {
-    dependencies = mapFeatures features ([ aho_corasick_0_6_4 memchr_2_0_1 regex_syntax_0_5_6 thread_local_0_3_5 utf8_ranges_1_0_0 ]);
-    features = mkFeatures (features.regex_0_2_11 or {});
-  };
-  regex_0_2_11_features = f: updateFeatures f (rec {
-    aho_corasick_0_6_4.default = true;
-    memchr_2_0_1.default = true;
-    regex_0_2_11.default = (f.regex_0_2_11.default or true);
-    regex_0_2_11.pattern =
-      (f.regex_0_2_11.pattern or false) ||
-      (f.regex_0_2_11.unstable or false) ||
-      (regex_0_2_11.unstable or false);
-    regex_syntax_0_5_6.default = true;
-    thread_local_0_3_5.default = true;
-    utf8_ranges_1_0_0.default = true;
-  }) [ aho_corasick_0_6_4_features memchr_2_0_1_features regex_syntax_0_5_6_features thread_local_0_3_5_features utf8_ranges_1_0_0_features ];
-  regex_1_0_0 = { features?(regex_1_0_0_features {}) }: regex_1_0_0_ {
-    dependencies = mapFeatures features ([ aho_corasick_0_6_4 memchr_2_0_1 regex_syntax_0_6_0 thread_local_0_3_5 utf8_ranges_1_0_0 ]);
-    features = mkFeatures (features.regex_1_0_0 or {});
-  };
-  regex_1_0_0_features = f: updateFeatures f (rec {
-    aho_corasick_0_6_4.default = true;
-    memchr_2_0_1.default = true;
-    regex_1_0_0.default = (f.regex_1_0_0.default or true);
-    regex_1_0_0.pattern =
-      (f.regex_1_0_0.pattern or false) ||
-      (f.regex_1_0_0.unstable or false) ||
-      (regex_1_0_0.unstable or false);
-    regex_1_0_0.use_std =
-      (f.regex_1_0_0.use_std or false) ||
-      (f.regex_1_0_0.default or false) ||
-      (regex_1_0_0.default or false);
-    regex_syntax_0_6_0.default = true;
-    thread_local_0_3_5.default = true;
-    utf8_ranges_1_0_0.default = true;
-  }) [ aho_corasick_0_6_4_features memchr_2_0_1_features regex_syntax_0_6_0_features thread_local_0_3_5_features utf8_ranges_1_0_0_features ];
-  regex_syntax_0_5_6 = { features?(regex_syntax_0_5_6_features {}) }: regex_syntax_0_5_6_ {
-    dependencies = mapFeatures features ([ ucd_util_0_1_1 ]);
-  };
-  regex_syntax_0_5_6_features = f: updateFeatures f (rec {
-    regex_syntax_0_5_6.default = (f.regex_syntax_0_5_6.default or true);
-    ucd_util_0_1_1.default = true;
-  }) [ ucd_util_0_1_1_features ];
-  regex_syntax_0_6_0 = { features?(regex_syntax_0_6_0_features {}) }: regex_syntax_0_6_0_ {
-    dependencies = mapFeatures features ([ ucd_util_0_1_1 ]);
-  };
-  regex_syntax_0_6_0_features = f: updateFeatures f (rec {
-    regex_syntax_0_6_0.default = (f.regex_syntax_0_6_0.default or true);
-    ucd_util_0_1_1.default = true;
-  }) [ ucd_util_0_1_1_features ];
-  relay_0_1_1 = { features?(relay_0_1_1_features {}) }: relay_0_1_1_ {
-    dependencies = mapFeatures features ([ futures_0_1_21 ]);
-  };
-  relay_0_1_1_features = f: updateFeatures f (rec {
-    futures_0_1_21.default = true;
-    relay_0_1_1.default = (f.relay_0_1_1.default or true);
-  }) [ futures_0_1_21_features ];
-  remove_dir_all_0_5_1 = { features?(remove_dir_all_0_5_1_features {}) }: remove_dir_all_0_5_1_ {
-    dependencies = (if kernel == "windows" then mapFeatures features ([ winapi_0_3_4 ]) else []);
-  };
-  remove_dir_all_0_5_1_features = f: updateFeatures f (rec {
-    remove_dir_all_0_5_1.default = (f.remove_dir_all_0_5_1.default or true);
-    winapi_0_3_4.default = true;
-    winapi_0_3_4.errhandlingapi = true;
-    winapi_0_3_4.fileapi = true;
-    winapi_0_3_4.std = true;
-    winapi_0_3_4.winbase = true;
-    winapi_0_3_4.winerror = true;
-  }) [ winapi_0_3_4_features ];
-  reqwest_0_8_5 = { features?(reqwest_0_8_5_features {}) }: reqwest_0_8_5_ {
-    dependencies = mapFeatures features ([ bytes_0_4_7 encoding_rs_0_7_2 futures_0_1_21 hyper_0_11_27 hyper_tls_0_1_3 libflate_0_1_14 log_0_4_1 mime_guess_2_0_0_alpha_4 native_tls_0_1_5 serde_1_0_59 serde_json_1_0_17 serde_urlencoded_0_5_2 tokio_core_0_1_17 tokio_io_0_1_6 tokio_tls_0_1_4 url_1_7_0 uuid_0_5_1 ]);
-    features = mkFeatures (features.reqwest_0_8_5 or {});
-  };
-  reqwest_0_8_5_features = f: updateFeatures f (rec {
-    bytes_0_4_7.default = true;
-    encoding_rs_0_7_2.default = true;
-    futures_0_1_21.default = true;
-    hyper_0_11_27.default = true;
-    hyper_tls_0_1_3.default = true;
-    libflate_0_1_14.default = true;
-    log_0_4_1.default = true;
-    mime_guess_2_0_0_alpha_4.default = true;
-    native_tls_0_1_5.default = true;
-    reqwest_0_8_5.default = (f.reqwest_0_8_5.default or true);
-    serde_1_0_59.default = true;
-    serde_json_1_0_17.default = true;
-    serde_urlencoded_0_5_2.default = true;
-    tokio_core_0_1_17.default = true;
-    tokio_io_0_1_6.default = true;
-    tokio_tls_0_1_4.default = true;
-    url_1_7_0.default = true;
-    uuid_0_5_1."v4" = true;
-    uuid_0_5_1.default = true;
-  }) [ bytes_0_4_7_features encoding_rs_0_7_2_features futures_0_1_21_features hyper_0_11_27_features hyper_tls_0_1_3_features libflate_0_1_14_features log_0_4_1_features mime_guess_2_0_0_alpha_4_features native_tls_0_1_5_features serde_1_0_59_features serde_json_1_0_17_features serde_urlencoded_0_5_2_features tokio_core_0_1_17_features tokio_io_0_1_6_features tokio_tls_0_1_4_features url_1_7_0_features uuid_0_5_1_features ];
-  resolv_conf_0_6_0 = { features?(resolv_conf_0_6_0_features {}) }: resolv_conf_0_6_0_ {
-    dependencies = mapFeatures features ([ quick_error_1_2_1 ]
-      ++ (if features.resolv_conf_0_6_0.hostname or false then [ hostname_0_1_4 ] else []));
-    features = mkFeatures (features.resolv_conf_0_6_0 or {});
-  };
-  resolv_conf_0_6_0_features = f: updateFeatures f (rec {
-    hostname_0_1_4.default = true;
-    quick_error_1_2_1.default = true;
-    resolv_conf_0_6_0.default = (f.resolv_conf_0_6_0.default or true);
-    resolv_conf_0_6_0.hostname =
-      (f.resolv_conf_0_6_0.hostname or false) ||
-      (f.resolv_conf_0_6_0.system or false) ||
-      (resolv_conf_0_6_0.system or false);
-  }) [ hostname_0_1_4_features quick_error_1_2_1_features ];
-  ring_0_12_1 = { features?(ring_0_12_1_features {}) }: ring_0_12_1_ {
-    dependencies = mapFeatures features ([ libc_0_2_41 untrusted_0_5_1 ])
-      ++ (if kernel == "redox" || (kernel == "linux" || kernel == "darwin") && !(kernel == "darwin" || kernel == "ios") then mapFeatures features ([ lazy_static_0_2_11 ]) else []);
-    buildDependencies = mapFeatures features ([ gcc_0_3_54 rayon_0_8_2 ]);
-    features = mkFeatures (features.ring_0_12_1 or {});
-  };
-  ring_0_12_1_features = f: updateFeatures f (rec {
-    gcc_0_3_54.default = true;
-    lazy_static_0_2_11.default = true;
-    libc_0_2_41.default = true;
-    rayon_0_8_2.default = true;
-    ring_0_12_1.default = (f.ring_0_12_1.default or true);
-    ring_0_12_1.dev_urandom_fallback =
-      (f.ring_0_12_1.dev_urandom_fallback or false) ||
-      (f.ring_0_12_1.default or false) ||
-      (ring_0_12_1.default or false);
-    ring_0_12_1.use_heap =
-      (f.ring_0_12_1.use_heap or false) ||
-      (f.ring_0_12_1.default or false) ||
-      (ring_0_12_1.default or false) ||
-      (f.ring_0_12_1.rsa_signing or false) ||
-      (ring_0_12_1.rsa_signing or false);
-    untrusted_0_5_1.default = true;
-  }) [ libc_0_2_41_features untrusted_0_5_1_features gcc_0_3_54_features rayon_0_8_2_features lazy_static_0_2_11_features ];
-  rustc_demangle_0_1_8 = { features?(rustc_demangle_0_1_8_features {}) }: rustc_demangle_0_1_8_ {};
-  rustc_demangle_0_1_8_features = f: updateFeatures f (rec {
-    rustc_demangle_0_1_8.default = (f.rustc_demangle_0_1_8.default or true);
-  }) [];
-  safemem_0_2_0 = { features?(safemem_0_2_0_features {}) }: safemem_0_2_0_ {};
-  safemem_0_2_0_features = f: updateFeatures f (rec {
-    safemem_0_2_0.default = (f.safemem_0_2_0.default or true);
-  }) [];
-  same_file_1_0_2 = { features?(same_file_1_0_2_features {}) }: same_file_1_0_2_ {
-    dependencies = (if kernel == "windows" then mapFeatures features ([ winapi_0_3_4 ]) else []);
-  };
-  same_file_1_0_2_features = f: updateFeatures f (rec {
-    same_file_1_0_2.default = (f.same_file_1_0_2.default or true);
-    winapi_0_3_4.default = true;
-    winapi_0_3_4.fileapi = true;
-    winapi_0_3_4.minwindef = true;
-    winapi_0_3_4.processenv = true;
-    winapi_0_3_4.std = true;
-    winapi_0_3_4.winbase = true;
-  }) [ winapi_0_3_4_features ];
-  schannel_0_1_12 = { features?(schannel_0_1_12_features {}) }: schannel_0_1_12_ {
-    dependencies = mapFeatures features ([ lazy_static_1_0_0 winapi_0_3_4 ]);
-  };
-  schannel_0_1_12_features = f: updateFeatures f (rec {
-    lazy_static_1_0_0.default = true;
-    schannel_0_1_12.default = (f.schannel_0_1_12.default or true);
-    winapi_0_3_4.default = true;
-    winapi_0_3_4.lmcons = true;
-    winapi_0_3_4.minschannel = true;
-    winapi_0_3_4.schannel = true;
-    winapi_0_3_4.securitybaseapi = true;
-    winapi_0_3_4.sysinfoapi = true;
-    winapi_0_3_4.timezoneapi = true;
-    winapi_0_3_4.winbase = true;
-    winapi_0_3_4.wincrypt = true;
-    winapi_0_3_4.winerror = true;
-  }) [ lazy_static_1_0_0_features winapi_0_3_4_features ];
-  scheduled_thread_pool_0_2_0 = { features?(scheduled_thread_pool_0_2_0_features {}) }: scheduled_thread_pool_0_2_0_ {
-    dependencies = mapFeatures features ([ antidote_1_0_0 ]);
-  };
-  scheduled_thread_pool_0_2_0_features = f: updateFeatures f (rec {
-    antidote_1_0_0.default = true;
-    scheduled_thread_pool_0_2_0.default = (f.scheduled_thread_pool_0_2_0.default or true);
-  }) [ antidote_1_0_0_features ];
-  scoped_tls_0_1_2 = { features?(scoped_tls_0_1_2_features {}) }: scoped_tls_0_1_2_ {
-    features = mkFeatures (features.scoped_tls_0_1_2 or {});
-  };
-  scoped_tls_0_1_2_features = f: updateFeatures f (rec {
-    scoped_tls_0_1_2.default = (f.scoped_tls_0_1_2.default or true);
-  }) [];
-  scopeguard_0_3_3 = { features?(scopeguard_0_3_3_features {}) }: scopeguard_0_3_3_ {
-    features = mkFeatures (features.scopeguard_0_3_3 or {});
-  };
-  scopeguard_0_3_3_features = f: updateFeatures f (rec {
-    scopeguard_0_3_3.default = (f.scopeguard_0_3_3.default or true);
-    scopeguard_0_3_3.use_std =
-      (f.scopeguard_0_3_3.use_std or false) ||
-      (f.scopeguard_0_3_3.default or false) ||
-      (scopeguard_0_3_3.default or false);
-  }) [];
-  security_framework_0_1_16 = { features?(security_framework_0_1_16_features {}) }: security_framework_0_1_16_ {
-    dependencies = mapFeatures features ([ core_foundation_0_2_3 core_foundation_sys_0_2_3 libc_0_2_41 security_framework_sys_0_1_16 ]);
-    features = mkFeatures (features.security_framework_0_1_16 or {});
-  };
-  security_framework_0_1_16_features = f: updateFeatures f (rec {
-    core_foundation_0_2_3.default = true;
-    core_foundation_sys_0_2_3.default = true;
-    libc_0_2_41.default = true;
-    security_framework_0_1_16."OSX_10_10" =
-      (f.security_framework_0_1_16."OSX_10_10" or false) ||
-      (f.security_framework_0_1_16."OSX_10_11" or false) ||
-      (security_framework_0_1_16."OSX_10_11" or false);
-    security_framework_0_1_16."OSX_10_11" =
-      (f.security_framework_0_1_16."OSX_10_11" or false) ||
-      (f.security_framework_0_1_16."OSX_10_12" or false) ||
-      (security_framework_0_1_16."OSX_10_12" or false);
-    security_framework_0_1_16."OSX_10_8" =
-      (f.security_framework_0_1_16."OSX_10_8" or false) ||
-      (f.security_framework_0_1_16."OSX_10_9" or false) ||
-      (security_framework_0_1_16."OSX_10_9" or false);
-    security_framework_0_1_16."OSX_10_9" =
-      (f.security_framework_0_1_16."OSX_10_9" or false) ||
-      (f.security_framework_0_1_16."OSX_10_10" or false) ||
-      (security_framework_0_1_16."OSX_10_10" or false);
-    security_framework_0_1_16.default = (f.security_framework_0_1_16.default or true);
-    security_framework_sys_0_1_16."OSX_10_10" =
-      (f.security_framework_sys_0_1_16."OSX_10_10" or false) ||
-      (security_framework_0_1_16."OSX_10_10" or false) ||
-      (f.security_framework_0_1_16."OSX_10_10" or false);
-    security_framework_sys_0_1_16."OSX_10_11" =
-      (f.security_framework_sys_0_1_16."OSX_10_11" or false) ||
-      (security_framework_0_1_16."OSX_10_11" or false) ||
-      (f.security_framework_0_1_16."OSX_10_11" or false) ||
-      (security_framework_0_1_16."OSX_10_12" or false) ||
-      (f.security_framework_0_1_16."OSX_10_12" or false);
-    security_framework_sys_0_1_16."OSX_10_8" =
-      (f.security_framework_sys_0_1_16."OSX_10_8" or false) ||
-      (security_framework_0_1_16."OSX_10_8" or false) ||
-      (f.security_framework_0_1_16."OSX_10_8" or false);
-    security_framework_sys_0_1_16."OSX_10_9" =
-      (f.security_framework_sys_0_1_16."OSX_10_9" or false) ||
-      (security_framework_0_1_16."OSX_10_9" or false) ||
-      (f.security_framework_0_1_16."OSX_10_9" or false);
-    security_framework_sys_0_1_16.default = true;
-  }) [ core_foundation_0_2_3_features core_foundation_sys_0_2_3_features libc_0_2_41_features security_framework_sys_0_1_16_features ];
-  security_framework_sys_0_1_16 = { features?(security_framework_sys_0_1_16_features {}) }: security_framework_sys_0_1_16_ {
-    dependencies = mapFeatures features ([ core_foundation_sys_0_2_3 libc_0_2_41 ]);
-    features = mkFeatures (features.security_framework_sys_0_1_16 or {});
-  };
-  security_framework_sys_0_1_16_features = f: updateFeatures f (rec {
-    core_foundation_sys_0_2_3.default = true;
-    libc_0_2_41.default = true;
-    security_framework_sys_0_1_16."OSX_10_10" =
-      (f.security_framework_sys_0_1_16."OSX_10_10" or false) ||
-      (f.security_framework_sys_0_1_16."OSX_10_11" or false) ||
-      (security_framework_sys_0_1_16."OSX_10_11" or false);
-    security_framework_sys_0_1_16."OSX_10_11" =
-      (f.security_framework_sys_0_1_16."OSX_10_11" or false) ||
-      (f.security_framework_sys_0_1_16."OSX_10_12" or false) ||
-      (security_framework_sys_0_1_16."OSX_10_12" or false);
-    security_framework_sys_0_1_16."OSX_10_8" =
-      (f.security_framework_sys_0_1_16."OSX_10_8" or false) ||
-      (f.security_framework_sys_0_1_16."OSX_10_9" or false) ||
-      (security_framework_sys_0_1_16."OSX_10_9" or false);
-    security_framework_sys_0_1_16."OSX_10_9" =
-      (f.security_framework_sys_0_1_16."OSX_10_9" or false) ||
-      (f.security_framework_sys_0_1_16."OSX_10_10" or false) ||
-      (security_framework_sys_0_1_16."OSX_10_10" or false);
-    security_framework_sys_0_1_16.default = (f.security_framework_sys_0_1_16.default or true);
-  }) [ core_foundation_sys_0_2_3_features libc_0_2_41_features ];
-  semver_0_9_0 = { features?(semver_0_9_0_features {}) }: semver_0_9_0_ {
-    dependencies = mapFeatures features ([ semver_parser_0_7_0 ]
-      ++ (if features.semver_0_9_0.serde or false then [ serde_1_0_59 ] else []));
-    features = mkFeatures (features.semver_0_9_0 or {});
-  };
-  semver_0_9_0_features = f: updateFeatures f (rec {
-    semver_0_9_0.default = (f.semver_0_9_0.default or true);
-    semver_0_9_0.serde =
-      (f.semver_0_9_0.serde or false) ||
-      (f.semver_0_9_0.ci or false) ||
-      (semver_0_9_0.ci or false);
-    semver_parser_0_7_0.default = true;
-    serde_1_0_59.default = true;
-  }) [ semver_parser_0_7_0_features serde_1_0_59_features ];
-  semver_parser_0_7_0 = { features?(semver_parser_0_7_0_features {}) }: semver_parser_0_7_0_ {};
-  semver_parser_0_7_0_features = f: updateFeatures f (rec {
-    semver_parser_0_7_0.default = (f.semver_parser_0_7_0.default or true);
-  }) [];
-  serde_1_0_59 = { features?(serde_1_0_59_features {}) }: serde_1_0_59_ {
-    dependencies = mapFeatures features ([]);
-    features = mkFeatures (features.serde_1_0_59 or {});
-  };
-  serde_1_0_59_features = f: updateFeatures f (rec {
-    serde_1_0_59.default = (f.serde_1_0_59.default or true);
-    serde_1_0_59.serde_derive =
-      (f.serde_1_0_59.serde_derive or false) ||
-      (f.serde_1_0_59.derive or false) ||
-      (serde_1_0_59.derive or false);
-    serde_1_0_59.std =
-      (f.serde_1_0_59.std or false) ||
-      (f.serde_1_0_59.default or false) ||
-      (serde_1_0_59.default or false);
-    serde_1_0_59.unstable =
-      (f.serde_1_0_59.unstable or false) ||
-      (f.serde_1_0_59.alloc or false) ||
-      (serde_1_0_59.alloc or false);
-  }) [];
-  serde_derive_1_0_59 = { features?(serde_derive_1_0_59_features {}) }: serde_derive_1_0_59_ {
-    dependencies = mapFeatures features ([ proc_macro2_0_4_3 quote_0_6_2 syn_0_14_0 ]);
-    features = mkFeatures (features.serde_derive_1_0_59 or {});
-  };
-  serde_derive_1_0_59_features = f: updateFeatures f (rec {
-    proc_macro2_0_4_3.default = true;
-    quote_0_6_2.default = true;
-    serde_derive_1_0_59.default = (f.serde_derive_1_0_59.default or true);
-    syn_0_14_0.default = true;
-    syn_0_14_0.visit = true;
-  }) [ proc_macro2_0_4_3_features quote_0_6_2_features syn_0_14_0_features ];
-  serde_json_1_0_17 = { features?(serde_json_1_0_17_features {}) }: serde_json_1_0_17_ {
-    dependencies = mapFeatures features ([ dtoa_0_4_2 itoa_0_4_1 serde_1_0_59 ]);
-    features = mkFeatures (features.serde_json_1_0_17 or {});
-  };
-  serde_json_1_0_17_features = f: updateFeatures f (rec {
-    dtoa_0_4_2.default = true;
-    itoa_0_4_1.default = true;
-    serde_1_0_59.default = true;
-    serde_json_1_0_17."linked-hash-map" =
-      (f.serde_json_1_0_17."linked-hash-map" or false) ||
-      (f.serde_json_1_0_17.preserve_order or false) ||
-      (serde_json_1_0_17.preserve_order or false);
-    serde_json_1_0_17.default = (f.serde_json_1_0_17.default or true);
-  }) [ dtoa_0_4_2_features itoa_0_4_1_features serde_1_0_59_features ];
-  serde_urlencoded_0_5_2 = { features?(serde_urlencoded_0_5_2_features {}) }: serde_urlencoded_0_5_2_ {
-    dependencies = mapFeatures features ([ dtoa_0_4_2 itoa_0_4_1 serde_1_0_59 url_1_7_0 ]);
-  };
-  serde_urlencoded_0_5_2_features = f: updateFeatures f (rec {
-    dtoa_0_4_2.default = true;
-    itoa_0_4_1.default = true;
-    serde_1_0_59.default = true;
-    serde_urlencoded_0_5_2.default = (f.serde_urlencoded_0_5_2.default or true);
-    url_1_7_0.default = true;
-  }) [ dtoa_0_4_2_features itoa_0_4_1_features serde_1_0_59_features url_1_7_0_features ];
-  sha1_0_6_0 = { features?(sha1_0_6_0_features {}) }: sha1_0_6_0_ {
-    dependencies = mapFeatures features ([]);
-    features = mkFeatures (features.sha1_0_6_0 or {});
-  };
-  sha1_0_6_0_features = f: updateFeatures f (rec {
-    sha1_0_6_0.default = (f.sha1_0_6_0.default or true);
-  }) [];
-  siphasher_0_2_2 = { features?(siphasher_0_2_2_features {}) }: siphasher_0_2_2_ {
-    dependencies = mapFeatures features ([]);
-  };
-  siphasher_0_2_2_features = f: updateFeatures f (rec {
-    siphasher_0_2_2.default = (f.siphasher_0_2_2.default or true);
-  }) [];
-  skeptic_0_13_3 = { features?(skeptic_0_13_3_features {}) }: skeptic_0_13_3_ {
-    dependencies = mapFeatures features ([ bytecount_0_3_1 cargo_metadata_0_5_4 error_chain_0_11_0 glob_0_2_11 pulldown_cmark_0_1_2 serde_json_1_0_17 tempdir_0_3_7 walkdir_2_1_4 ]);
-  };
-  skeptic_0_13_3_features = f: updateFeatures f (rec {
-    bytecount_0_3_1.default = true;
-    cargo_metadata_0_5_4.default = true;
-    error_chain_0_11_0.default = (f.error_chain_0_11_0.default or false);
-    glob_0_2_11.default = true;
-    pulldown_cmark_0_1_2.default = (f.pulldown_cmark_0_1_2.default or false);
-    serde_json_1_0_17.default = true;
-    skeptic_0_13_3.default = (f.skeptic_0_13_3.default or true);
-    tempdir_0_3_7.default = true;
-    walkdir_2_1_4.default = true;
-  }) [ bytecount_0_3_1_features cargo_metadata_0_5_4_features error_chain_0_11_0_features glob_0_2_11_features pulldown_cmark_0_1_2_features serde_json_1_0_17_features tempdir_0_3_7_features walkdir_2_1_4_features ];
-  slab_0_3_0 = { features?(slab_0_3_0_features {}) }: slab_0_3_0_ {};
-  slab_0_3_0_features = f: updateFeatures f (rec {
-    slab_0_3_0.default = (f.slab_0_3_0.default or true);
-  }) [];
-  slab_0_4_0 = { features?(slab_0_4_0_features {}) }: slab_0_4_0_ {};
-  slab_0_4_0_features = f: updateFeatures f (rec {
-    slab_0_4_0.default = (f.slab_0_4_0.default or true);
-  }) [];
-  smallvec_0_2_1 = { features?(smallvec_0_2_1_features {}) }: smallvec_0_2_1_ {};
-  smallvec_0_2_1_features = f: updateFeatures f (rec {
-    smallvec_0_2_1.default = (f.smallvec_0_2_1.default or true);
-  }) [];
-  smallvec_0_6_1 = { features?(smallvec_0_6_1_features {}) }: smallvec_0_6_1_ {
-    dependencies = mapFeatures features ([]);
-    features = mkFeatures (features.smallvec_0_6_1 or {});
-  };
-  smallvec_0_6_1_features = f: updateFeatures f (rec {
-    smallvec_0_6_1.default = (f.smallvec_0_6_1.default or true);
-    smallvec_0_6_1.std =
-      (f.smallvec_0_6_1.std or false) ||
-      (f.smallvec_0_6_1.default or false) ||
-      (smallvec_0_6_1.default or false);
-  }) [];
-  socket2_0_3_5 = { features?(socket2_0_3_5_features {}) }: socket2_0_3_5_ {
-    dependencies = (if (kernel == "linux" || kernel == "darwin") then mapFeatures features ([ cfg_if_0_1_3 libc_0_2_41 ]) else [])
-      ++ (if kernel == "windows" then mapFeatures features ([ winapi_0_3_4 ]) else []);
-    features = mkFeatures (features.socket2_0_3_5 or {});
-  };
-  socket2_0_3_5_features = f: updateFeatures f (rec {
-    cfg_if_0_1_3.default = true;
-    libc_0_2_41.default = true;
-    socket2_0_3_5.default = (f.socket2_0_3_5.default or true);
-    winapi_0_3_4."ws2def" = true;
-    winapi_0_3_4."ws2ipdef" = true;
-    winapi_0_3_4."ws2tcpip" = true;
-    winapi_0_3_4.default = true;
-    winapi_0_3_4.handleapi = true;
-    winapi_0_3_4.minwindef = true;
-  }) [ cfg_if_0_1_3_features libc_0_2_41_features winapi_0_3_4_features ];
-  stable_deref_trait_1_0_0 = { features?(stable_deref_trait_1_0_0_features {}) }: stable_deref_trait_1_0_0_ {
-    features = mkFeatures (features.stable_deref_trait_1_0_0 or {});
-  };
-  stable_deref_trait_1_0_0_features = f: updateFeatures f (rec {
-    stable_deref_trait_1_0_0.default = (f.stable_deref_trait_1_0_0.default or true);
-    stable_deref_trait_1_0_0.std =
-      (f.stable_deref_trait_1_0_0.std or false) ||
-      (f.stable_deref_trait_1_0_0.default or false) ||
-      (stable_deref_trait_1_0_0.default or false);
-  }) [];
-  string_0_1_0 = { features?(string_0_1_0_features {}) }: string_0_1_0_ {};
-  string_0_1_0_features = f: updateFeatures f (rec {
-    string_0_1_0.default = (f.string_0_1_0.default or true);
-  }) [];
-  strsim_0_7_0 = { features?(strsim_0_7_0_features {}) }: strsim_0_7_0_ {};
-  strsim_0_7_0_features = f: updateFeatures f (rec {
-    strsim_0_7_0.default = (f.strsim_0_7_0.default or true);
-  }) [];
-  syn_0_11_11 = { features?(syn_0_11_11_features {}) }: syn_0_11_11_ {
-    dependencies = mapFeatures features ([ ]
-      ++ (if features.syn_0_11_11.quote or false then [ quote_0_3_15 ] else [])
-      ++ (if features.syn_0_11_11.synom or false then [ synom_0_11_3 ] else [])
-      ++ (if features.syn_0_11_11."unicode-xid" or false then [ unicode_xid_0_0_4 ] else []));
-    features = mkFeatures (features.syn_0_11_11 or {});
-  };
-  syn_0_11_11_features = f: updateFeatures f (rec {
-    quote_0_3_15.default = true;
-    syn_0_11_11."unicode-xid" =
-      (f.syn_0_11_11."unicode-xid" or false) ||
-      (f.syn_0_11_11.parsing or false) ||
-      (syn_0_11_11.parsing or false);
-    syn_0_11_11.default = (f.syn_0_11_11.default or true);
-    syn_0_11_11.parsing =
-      (f.syn_0_11_11.parsing or false) ||
-      (f.syn_0_11_11.default or false) ||
-      (syn_0_11_11.default or false);
-    syn_0_11_11.printing =
-      (f.syn_0_11_11.printing or false) ||
-      (f.syn_0_11_11.default or false) ||
-      (syn_0_11_11.default or false);
-    syn_0_11_11.quote =
-      (f.syn_0_11_11.quote or false) ||
-      (f.syn_0_11_11.printing or false) ||
-      (syn_0_11_11.printing or false);
-    syn_0_11_11.synom =
-      (f.syn_0_11_11.synom or false) ||
-      (f.syn_0_11_11.parsing or false) ||
-      (syn_0_11_11.parsing or false);
-    synom_0_11_3.default = true;
-    unicode_xid_0_0_4.default = true;
-  }) [ quote_0_3_15_features synom_0_11_3_features unicode_xid_0_0_4_features ];
-  syn_0_12_15 = { features?(syn_0_12_15_features {}) }: syn_0_12_15_ {
-    dependencies = mapFeatures features ([ proc_macro2_0_2_3 unicode_xid_0_1_0 ]
-      ++ (if features.syn_0_12_15.quote or false then [ quote_0_4_2 ] else []));
-    features = mkFeatures (features.syn_0_12_15 or {});
-  };
-  syn_0_12_15_features = f: updateFeatures f (rec {
-    proc_macro2_0_2_3.default = true;
-    quote_0_4_2.default = true;
-    syn_0_12_15."clone-impls" =
-      (f.syn_0_12_15."clone-impls" or false) ||
-      (f.syn_0_12_15.default or false) ||
-      (syn_0_12_15.default or false);
-    syn_0_12_15.default = (f.syn_0_12_15.default or true);
-    syn_0_12_15.derive =
-      (f.syn_0_12_15.derive or false) ||
-      (f.syn_0_12_15.default or false) ||
-      (syn_0_12_15.default or false);
-    syn_0_12_15.parsing =
-      (f.syn_0_12_15.parsing or false) ||
-      (f.syn_0_12_15.default or false) ||
-      (syn_0_12_15.default or false);
-    syn_0_12_15.printing =
-      (f.syn_0_12_15.printing or false) ||
-      (f.syn_0_12_15.default or false) ||
-      (syn_0_12_15.default or false);
-    syn_0_12_15.quote =
-      (f.syn_0_12_15.quote or false) ||
-      (f.syn_0_12_15.printing or false) ||
-      (syn_0_12_15.printing or false);
-    unicode_xid_0_1_0.default = true;
-  }) [ proc_macro2_0_2_3_features quote_0_4_2_features unicode_xid_0_1_0_features ];
-  syn_0_13_11 = { features?(syn_0_13_11_features {}) }: syn_0_13_11_ {
-    dependencies = mapFeatures features ([ proc_macro2_0_3_8 unicode_xid_0_1_0 ]
-      ++ (if features.syn_0_13_11.quote or false then [ quote_0_5_2 ] else []));
-    features = mkFeatures (features.syn_0_13_11 or {});
-  };
-  syn_0_13_11_features = f: updateFeatures f (rec {
-    proc_macro2_0_3_8."proc-macro" =
-      (f.proc_macro2_0_3_8."proc-macro" or false) ||
-      (syn_0_13_11."proc-macro" or false) ||
-      (f.syn_0_13_11."proc-macro" or false);
-    proc_macro2_0_3_8.default = (f.proc_macro2_0_3_8.default or false);
-    quote_0_5_2."proc-macro" =
-      (f.quote_0_5_2."proc-macro" or false) ||
-      (syn_0_13_11."proc-macro" or false) ||
-      (f.syn_0_13_11."proc-macro" or false);
-    quote_0_5_2.default = (f.quote_0_5_2.default or false);
-    syn_0_13_11."clone-impls" =
-      (f.syn_0_13_11."clone-impls" or false) ||
-      (f.syn_0_13_11.default or false) ||
-      (syn_0_13_11.default or false);
-    syn_0_13_11."proc-macro" =
-      (f.syn_0_13_11."proc-macro" or false) ||
-      (f.syn_0_13_11.default or false) ||
-      (syn_0_13_11.default or false);
-    syn_0_13_11.default = (f.syn_0_13_11.default or true);
-    syn_0_13_11.derive =
-      (f.syn_0_13_11.derive or false) ||
-      (f.syn_0_13_11.default or false) ||
-      (syn_0_13_11.default or false);
-    syn_0_13_11.parsing =
-      (f.syn_0_13_11.parsing or false) ||
-      (f.syn_0_13_11.default or false) ||
-      (syn_0_13_11.default or false);
-    syn_0_13_11.printing =
-      (f.syn_0_13_11.printing or false) ||
-      (f.syn_0_13_11.default or false) ||
-      (syn_0_13_11.default or false);
-    syn_0_13_11.quote =
-      (f.syn_0_13_11.quote or false) ||
-      (f.syn_0_13_11.printing or false) ||
-      (syn_0_13_11.printing or false);
-    unicode_xid_0_1_0.default = true;
-  }) [ proc_macro2_0_3_8_features quote_0_5_2_features unicode_xid_0_1_0_features ];
-  syn_0_14_0 = { features?(syn_0_14_0_features {}) }: syn_0_14_0_ {
-    dependencies = mapFeatures features ([ proc_macro2_0_4_3 unicode_xid_0_1_0 ]
-      ++ (if features.syn_0_14_0.quote or false then [ quote_0_6_2 ] else []));
-    features = mkFeatures (features.syn_0_14_0 or {});
-  };
-  syn_0_14_0_features = f: updateFeatures f (rec {
-    proc_macro2_0_4_3."proc-macro" =
-      (f.proc_macro2_0_4_3."proc-macro" or false) ||
-      (syn_0_14_0."proc-macro" or false) ||
-      (f.syn_0_14_0."proc-macro" or false);
-    proc_macro2_0_4_3.default = (f.proc_macro2_0_4_3.default or false);
-    quote_0_6_2."proc-macro" =
-      (f.quote_0_6_2."proc-macro" or false) ||
-      (syn_0_14_0."proc-macro" or false) ||
-      (f.syn_0_14_0."proc-macro" or false);
-    quote_0_6_2.default = (f.quote_0_6_2.default or false);
-    syn_0_14_0."clone-impls" =
-      (f.syn_0_14_0."clone-impls" or false) ||
-      (f.syn_0_14_0.default or false) ||
-      (syn_0_14_0.default or false);
-    syn_0_14_0."proc-macro" =
-      (f.syn_0_14_0."proc-macro" or false) ||
-      (f.syn_0_14_0.default or false) ||
-      (syn_0_14_0.default or false);
-    syn_0_14_0.default = (f.syn_0_14_0.default or true);
-    syn_0_14_0.derive =
-      (f.syn_0_14_0.derive or false) ||
-      (f.syn_0_14_0.default or false) ||
-      (syn_0_14_0.default or false);
-    syn_0_14_0.parsing =
-      (f.syn_0_14_0.parsing or false) ||
-      (f.syn_0_14_0.default or false) ||
-      (syn_0_14_0.default or false);
-    syn_0_14_0.printing =
-      (f.syn_0_14_0.printing or false) ||
-      (f.syn_0_14_0.default or false) ||
-      (syn_0_14_0.default or false);
-    syn_0_14_0.quote =
-      (f.syn_0_14_0.quote or false) ||
-      (f.syn_0_14_0.printing or false) ||
-      (syn_0_14_0.printing or false);
-    unicode_xid_0_1_0.default = true;
-  }) [ proc_macro2_0_4_3_features quote_0_6_2_features unicode_xid_0_1_0_features ];
-  synom_0_11_3 = { features?(synom_0_11_3_features {}) }: synom_0_11_3_ {
-    dependencies = mapFeatures features ([ unicode_xid_0_0_4 ]);
-  };
-  synom_0_11_3_features = f: updateFeatures f (rec {
-    synom_0_11_3.default = (f.synom_0_11_3.default or true);
-    unicode_xid_0_0_4.default = true;
-  }) [ unicode_xid_0_0_4_features ];
-  synstructure_0_6_1 = { features?(synstructure_0_6_1_features {}) }: synstructure_0_6_1_ {
-    dependencies = mapFeatures features ([ quote_0_3_15 syn_0_11_11 ]);
-    features = mkFeatures (features.synstructure_0_6_1 or {});
-  };
-  synstructure_0_6_1_features = f: updateFeatures f (rec {
-    quote_0_3_15.default = true;
-    syn_0_11_11.default = true;
-    syn_0_11_11.visit = true;
-    synstructure_0_6_1.default = (f.synstructure_0_6_1.default or true);
-  }) [ quote_0_3_15_features syn_0_11_11_features ];
-  take_0_1_0 = { features?(take_0_1_0_features {}) }: take_0_1_0_ {};
-  take_0_1_0_features = f: updateFeatures f (rec {
-    take_0_1_0.default = (f.take_0_1_0.default or true);
-  }) [];
-  tempdir_0_3_7 = { features?(tempdir_0_3_7_features {}) }: tempdir_0_3_7_ {
-    dependencies = mapFeatures features ([ rand_0_4_2 remove_dir_all_0_5_1 ]);
-  };
-  tempdir_0_3_7_features = f: updateFeatures f (rec {
-    rand_0_4_2.default = true;
-    remove_dir_all_0_5_1.default = true;
-    tempdir_0_3_7.default = (f.tempdir_0_3_7.default or true);
-  }) [ rand_0_4_2_features remove_dir_all_0_5_1_features ];
-  termcolor_0_3_6 = { features?(termcolor_0_3_6_features {}) }: termcolor_0_3_6_ {
-    dependencies = (if kernel == "windows" then mapFeatures features ([ wincolor_0_1_6 ]) else []);
-  };
-  termcolor_0_3_6_features = f: updateFeatures f (rec {
-    termcolor_0_3_6.default = (f.termcolor_0_3_6.default or true);
-    wincolor_0_1_6.default = true;
-  }) [ wincolor_0_1_6_features ];
-  termion_1_5_1 = { features?(termion_1_5_1_features {}) }: termion_1_5_1_ {
-    dependencies = (if !(kernel == "redox") then mapFeatures features ([ libc_0_2_41 ]) else [])
-      ++ (if kernel == "redox" then mapFeatures features ([ redox_syscall_0_1_38 redox_termios_0_1_1 ]) else []);
-  };
-  termion_1_5_1_features = f: updateFeatures f (rec {
-    libc_0_2_41.default = true;
-    redox_syscall_0_1_38.default = true;
-    redox_termios_0_1_1.default = true;
-    termion_1_5_1.default = (f.termion_1_5_1.default or true);
-  }) [ libc_0_2_41_features redox_syscall_0_1_38_features redox_termios_0_1_1_features ];
-  textwrap_0_9_0 = { features?(textwrap_0_9_0_features {}) }: textwrap_0_9_0_ {
-    dependencies = mapFeatures features ([ unicode_width_0_1_5 ]);
-  };
-  textwrap_0_9_0_features = f: updateFeatures f (rec {
-    textwrap_0_9_0.default = (f.textwrap_0_9_0.default or true);
-    unicode_width_0_1_5.default = true;
-  }) [ unicode_width_0_1_5_features ];
-  thread_local_0_3_5 = { features?(thread_local_0_3_5_features {}) }: thread_local_0_3_5_ {
-    dependencies = mapFeatures features ([ lazy_static_1_0_0 unreachable_1_0_0 ]);
-  };
-  thread_local_0_3_5_features = f: updateFeatures f (rec {
-    lazy_static_1_0_0.default = true;
-    thread_local_0_3_5.default = (f.thread_local_0_3_5.default or true);
-    unreachable_1_0_0.default = true;
-  }) [ lazy_static_1_0_0_features unreachable_1_0_0_features ];
-  time_0_1_40 = { features?(time_0_1_40_features {}) }: time_0_1_40_ {
-    dependencies = mapFeatures features ([ libc_0_2_41 ])
-      ++ (if kernel == "redox" then mapFeatures features ([ redox_syscall_0_1_38 ]) else [])
-      ++ (if kernel == "windows" then mapFeatures features ([ winapi_0_3_4 ]) else []);
-  };
-  time_0_1_40_features = f: updateFeatures f (rec {
-    libc_0_2_41.default = true;
-    redox_syscall_0_1_38.default = true;
-    time_0_1_40.default = (f.time_0_1_40.default or true);
-    winapi_0_3_4.default = true;
-    winapi_0_3_4.minwinbase = true;
-    winapi_0_3_4.minwindef = true;
-    winapi_0_3_4.ntdef = true;
-    winapi_0_3_4.profileapi = true;
-    winapi_0_3_4.std = true;
-    winapi_0_3_4.sysinfoapi = true;
-    winapi_0_3_4.timezoneapi = true;
-  }) [ libc_0_2_41_features redox_syscall_0_1_38_features winapi_0_3_4_features ];
-  tokio_0_1_6 = { features?(tokio_0_1_6_features {}) }: tokio_0_1_6_ {
-    dependencies = mapFeatures features ([ futures_0_1_21 mio_0_6_14 tokio_executor_0_1_2 tokio_fs_0_1_0 tokio_io_0_1_6 tokio_reactor_0_1_1 tokio_tcp_0_1_0 tokio_threadpool_0_1_3 tokio_timer_0_2_3 tokio_udp_0_1_0 ]);
-  };
-  tokio_0_1_6_features = f: updateFeatures f (rec {
-    futures_0_1_21.default = true;
-    mio_0_6_14.default = true;
-    tokio_0_1_6.default = (f.tokio_0_1_6.default or true);
-    tokio_executor_0_1_2.default = true;
-    tokio_fs_0_1_0.default = true;
-    tokio_io_0_1_6.default = true;
-    tokio_reactor_0_1_1.default = true;
-    tokio_tcp_0_1_0.default = true;
-    tokio_threadpool_0_1_3.default = true;
-    tokio_timer_0_2_3.default = true;
-    tokio_udp_0_1_0.default = true;
-  }) [ futures_0_1_21_features mio_0_6_14_features tokio_executor_0_1_2_features tokio_fs_0_1_0_features tokio_io_0_1_6_features tokio_reactor_0_1_1_features tokio_tcp_0_1_0_features tokio_threadpool_0_1_3_features tokio_timer_0_2_3_features tokio_udp_0_1_0_features ];
-  tokio_core_0_1_17 = { features?(tokio_core_0_1_17_features {}) }: tokio_core_0_1_17_ {
-    dependencies = mapFeatures features ([ bytes_0_4_7 futures_0_1_21 iovec_0_1_2 log_0_4_1 mio_0_6_14 scoped_tls_0_1_2 tokio_0_1_6 tokio_executor_0_1_2 tokio_io_0_1_6 tokio_reactor_0_1_1 tokio_timer_0_2_3 ]);
-  };
-  tokio_core_0_1_17_features = f: updateFeatures f (rec {
-    bytes_0_4_7.default = true;
-    futures_0_1_21.default = true;
-    iovec_0_1_2.default = true;
-    log_0_4_1.default = true;
-    mio_0_6_14.default = true;
-    scoped_tls_0_1_2.default = true;
-    tokio_0_1_6.default = true;
-    tokio_core_0_1_17.default = (f.tokio_core_0_1_17.default or true);
-    tokio_executor_0_1_2.default = true;
-    tokio_io_0_1_6.default = true;
-    tokio_reactor_0_1_1.default = true;
-    tokio_timer_0_2_3.default = true;
-  }) [ bytes_0_4_7_features futures_0_1_21_features iovec_0_1_2_features log_0_4_1_features mio_0_6_14_features scoped_tls_0_1_2_features tokio_0_1_6_features tokio_executor_0_1_2_features tokio_io_0_1_6_features tokio_reactor_0_1_1_features tokio_timer_0_2_3_features ];
-  tokio_executor_0_1_2 = { features?(tokio_executor_0_1_2_features {}) }: tokio_executor_0_1_2_ {
-    dependencies = mapFeatures features ([ futures_0_1_21 ]);
-    features = mkFeatures (features.tokio_executor_0_1_2 or {});
-  };
-  tokio_executor_0_1_2_features = f: updateFeatures f (rec {
-    futures_0_1_21.default = true;
-    tokio_executor_0_1_2."futures2" =
-      (f.tokio_executor_0_1_2."futures2" or false) ||
-      (f.tokio_executor_0_1_2."unstable-futures" or false) ||
-      (tokio_executor_0_1_2."unstable-futures" or false);
-    tokio_executor_0_1_2.default = (f.tokio_executor_0_1_2.default or true);
-  }) [ futures_0_1_21_features ];
-  tokio_fs_0_1_0 = { features?(tokio_fs_0_1_0_features {}) }: tokio_fs_0_1_0_ {
-    dependencies = mapFeatures features ([ futures_0_1_21 tokio_io_0_1_6 tokio_threadpool_0_1_3 ]);
-  };
-  tokio_fs_0_1_0_features = f: updateFeatures f (rec {
-    futures_0_1_21.default = true;
-    tokio_fs_0_1_0.default = (f.tokio_fs_0_1_0.default or true);
-    tokio_io_0_1_6.default = true;
-    tokio_threadpool_0_1_3.default = true;
-  }) [ futures_0_1_21_features tokio_io_0_1_6_features tokio_threadpool_0_1_3_features ];
-  tokio_io_0_1_6 = { features?(tokio_io_0_1_6_features {}) }: tokio_io_0_1_6_ {
-    dependencies = mapFeatures features ([ bytes_0_4_7 futures_0_1_21 log_0_4_1 ]);
-  };
-  tokio_io_0_1_6_features = f: updateFeatures f (rec {
-    bytes_0_4_7.default = true;
-    futures_0_1_21.default = true;
-    log_0_4_1.default = true;
-    tokio_io_0_1_6.default = (f.tokio_io_0_1_6.default or true);
-  }) [ bytes_0_4_7_features futures_0_1_21_features log_0_4_1_features ];
-  tokio_proto_0_1_1 = { features?(tokio_proto_0_1_1_features {}) }: tokio_proto_0_1_1_ {
-    dependencies = mapFeatures features ([ futures_0_1_21 log_0_3_9 net2_0_2_32 rand_0_3_22 slab_0_3_0 smallvec_0_2_1 take_0_1_0 tokio_core_0_1_17 tokio_io_0_1_6 tokio_service_0_1_0 ]);
-  };
-  tokio_proto_0_1_1_features = f: updateFeatures f (rec {
-    futures_0_1_21.default = true;
-    log_0_3_9.default = true;
-    net2_0_2_32.default = true;
-    rand_0_3_22.default = true;
-    slab_0_3_0.default = true;
-    smallvec_0_2_1.default = true;
-    take_0_1_0.default = true;
-    tokio_core_0_1_17.default = true;
-    tokio_io_0_1_6.default = true;
-    tokio_proto_0_1_1.default = (f.tokio_proto_0_1_1.default or true);
-    tokio_service_0_1_0.default = true;
-  }) [ futures_0_1_21_features log_0_3_9_features net2_0_2_32_features rand_0_3_22_features slab_0_3_0_features smallvec_0_2_1_features take_0_1_0_features tokio_core_0_1_17_features tokio_io_0_1_6_features tokio_service_0_1_0_features ];
-  tokio_reactor_0_1_1 = { features?(tokio_reactor_0_1_1_features {}) }: tokio_reactor_0_1_1_ {
-    dependencies = mapFeatures features ([ futures_0_1_21 log_0_4_1 mio_0_6_14 slab_0_4_0 tokio_executor_0_1_2 tokio_io_0_1_6 ]);
-    features = mkFeatures (features.tokio_reactor_0_1_1 or {});
-  };
-  tokio_reactor_0_1_1_features = f: updateFeatures f (rec {
-    futures_0_1_21.default = true;
-    log_0_4_1.default = true;
-    mio_0_6_14.default = true;
-    slab_0_4_0.default = true;
-    tokio_executor_0_1_2.default = true;
-    tokio_io_0_1_6.default = true;
-    tokio_reactor_0_1_1."futures2" =
-      (f.tokio_reactor_0_1_1."futures2" or false) ||
-      (f.tokio_reactor_0_1_1."unstable-futures" or false) ||
-      (tokio_reactor_0_1_1."unstable-futures" or false);
-    tokio_reactor_0_1_1.default = (f.tokio_reactor_0_1_1.default or true);
-  }) [ futures_0_1_21_features log_0_4_1_features mio_0_6_14_features slab_0_4_0_features tokio_executor_0_1_2_features tokio_io_0_1_6_features ];
-  tokio_service_0_1_0 = { features?(tokio_service_0_1_0_features {}) }: tokio_service_0_1_0_ {
-    dependencies = mapFeatures features ([ futures_0_1_21 ]);
-  };
-  tokio_service_0_1_0_features = f: updateFeatures f (rec {
-    futures_0_1_21.default = true;
-    tokio_service_0_1_0.default = (f.tokio_service_0_1_0.default or true);
-  }) [ futures_0_1_21_features ];
-  tokio_signal_0_1_5 = { features?(tokio_signal_0_1_5_features {}) }: tokio_signal_0_1_5_ {
-    dependencies = mapFeatures features ([ futures_0_1_21 mio_0_6_14 tokio_core_0_1_17 tokio_io_0_1_6 ])
-      ++ (if (kernel == "linux" || kernel == "darwin") then mapFeatures features ([ libc_0_2_41 mio_uds_0_6_6 ]) else [])
-      ++ (if kernel == "windows" then mapFeatures features ([ winapi_0_3_4 ]) else []);
-  };
-  tokio_signal_0_1_5_features = f: updateFeatures f (rec {
-    futures_0_1_21.default = true;
-    libc_0_2_41.default = true;
-    mio_0_6_14.default = true;
-    mio_uds_0_6_6.default = true;
-    tokio_core_0_1_17.default = true;
-    tokio_io_0_1_6.default = true;
-    tokio_signal_0_1_5.default = (f.tokio_signal_0_1_5.default or true);
-    winapi_0_3_4.default = true;
-    winapi_0_3_4.minwindef = true;
-    winapi_0_3_4.wincon = true;
-  }) [ futures_0_1_21_features mio_0_6_14_features tokio_core_0_1_17_features tokio_io_0_1_6_features libc_0_2_41_features mio_uds_0_6_6_features winapi_0_3_4_features ];
-  tokio_tcp_0_1_0 = { features?(tokio_tcp_0_1_0_features {}) }: tokio_tcp_0_1_0_ {
-    dependencies = mapFeatures features ([ bytes_0_4_7 futures_0_1_21 iovec_0_1_2 mio_0_6_14 tokio_io_0_1_6 tokio_reactor_0_1_1 ]);
-    features = mkFeatures (features.tokio_tcp_0_1_0 or {});
-  };
-  tokio_tcp_0_1_0_features = f: updateFeatures f (rec {
-    bytes_0_4_7.default = true;
-    futures_0_1_21.default = true;
-    iovec_0_1_2.default = true;
-    mio_0_6_14.default = true;
-    tokio_io_0_1_6.default = true;
-    tokio_reactor_0_1_1.default = true;
-    tokio_tcp_0_1_0."futures2" =
-      (f.tokio_tcp_0_1_0."futures2" or false) ||
-      (f.tokio_tcp_0_1_0."unstable-futures" or false) ||
-      (tokio_tcp_0_1_0."unstable-futures" or false);
-    tokio_tcp_0_1_0.default = (f.tokio_tcp_0_1_0.default or true);
-  }) [ bytes_0_4_7_features futures_0_1_21_features iovec_0_1_2_features mio_0_6_14_features tokio_io_0_1_6_features tokio_reactor_0_1_1_features ];
-  tokio_threadpool_0_1_3 = { features?(tokio_threadpool_0_1_3_features {}) }: tokio_threadpool_0_1_3_ {
-    dependencies = mapFeatures features ([ crossbeam_deque_0_3_1 futures_0_1_21 log_0_4_1 num_cpus_1_8_0 rand_0_4_2 tokio_executor_0_1_2 ]);
-  };
-  tokio_threadpool_0_1_3_features = f: updateFeatures f (rec {
-    crossbeam_deque_0_3_1.default = true;
-    futures_0_1_21.default = true;
-    log_0_4_1.default = true;
-    num_cpus_1_8_0.default = true;
-    rand_0_4_2.default = true;
-    tokio_executor_0_1_2.default = true;
-    tokio_threadpool_0_1_3.default = (f.tokio_threadpool_0_1_3.default or true);
-  }) [ crossbeam_deque_0_3_1_features futures_0_1_21_features log_0_4_1_features num_cpus_1_8_0_features rand_0_4_2_features tokio_executor_0_1_2_features ];
-  tokio_timer_0_2_3 = { features?(tokio_timer_0_2_3_features {}) }: tokio_timer_0_2_3_ {
-    dependencies = mapFeatures features ([ futures_0_1_21 tokio_executor_0_1_2 ]);
-  };
-  tokio_timer_0_2_3_features = f: updateFeatures f (rec {
-    futures_0_1_21.default = true;
-    tokio_executor_0_1_2.default = true;
-    tokio_timer_0_2_3.default = (f.tokio_timer_0_2_3.default or true);
-  }) [ futures_0_1_21_features tokio_executor_0_1_2_features ];
-  tokio_tls_0_1_4 = { features?(tokio_tls_0_1_4_features {}) }: tokio_tls_0_1_4_ {
-    dependencies = mapFeatures features ([ futures_0_1_21 native_tls_0_1_5 tokio_core_0_1_17 tokio_io_0_1_6 ])
-      ++ (if !(kernel == "darwin") && !(kernel == "windows") && !(kernel == "ios") then mapFeatures features ([]) else [])
-      ++ (if kernel == "darwin" || kernel == "ios" then mapFeatures features ([]) else [])
-      ++ (if kernel == "windows" then mapFeatures features ([]) else []);
-  };
-  tokio_tls_0_1_4_features = f: updateFeatures f (rec {
-    futures_0_1_21.default = true;
-    native_tls_0_1_5.default = true;
-    tokio_core_0_1_17.default = true;
-    tokio_io_0_1_6.default = true;
-    tokio_tls_0_1_4.default = (f.tokio_tls_0_1_4.default or true);
-  }) [ futures_0_1_21_features native_tls_0_1_5_features tokio_core_0_1_17_features tokio_io_0_1_6_features ];
-  tokio_udp_0_1_0 = { features?(tokio_udp_0_1_0_features {}) }: tokio_udp_0_1_0_ {
-    dependencies = mapFeatures features ([ bytes_0_4_7 futures_0_1_21 log_0_4_1 mio_0_6_14 tokio_io_0_1_6 tokio_reactor_0_1_1 ]);
-    features = mkFeatures (features.tokio_udp_0_1_0 or {});
-  };
-  tokio_udp_0_1_0_features = f: updateFeatures f (rec {
-    bytes_0_4_7.default = true;
-    futures_0_1_21.default = true;
-    log_0_4_1.default = true;
-    mio_0_6_14.default = true;
-    tokio_io_0_1_6.default = true;
-    tokio_reactor_0_1_1.default = true;
-    tokio_udp_0_1_0."futures2" =
-      (f.tokio_udp_0_1_0."futures2" or false) ||
-      (f.tokio_udp_0_1_0."unstable-futures" or false) ||
-      (tokio_udp_0_1_0."unstable-futures" or false);
-    tokio_udp_0_1_0.default = (f.tokio_udp_0_1_0.default or true);
-  }) [ bytes_0_4_7_features futures_0_1_21_features log_0_4_1_features mio_0_6_14_features tokio_io_0_1_6_features tokio_reactor_0_1_1_features ];
-  trust_dns_proto_0_3_3 = { features?(trust_dns_proto_0_3_3_features {}) }: trust_dns_proto_0_3_3_ {
-    dependencies = mapFeatures features ([ byteorder_1_2_3 error_chain_0_1_12 futures_0_1_21 idna_0_1_4 lazy_static_1_0_0 log_0_4_1 rand_0_4_2 tokio_core_0_1_17 tokio_io_0_1_6 url_1_7_0 ]);
-    features = mkFeatures (features.trust_dns_proto_0_3_3 or {});
-  };
-  trust_dns_proto_0_3_3_features = f: updateFeatures f (rec {
-    byteorder_1_2_3.default = true;
-    error_chain_0_1_12.default = (f.error_chain_0_1_12.default or false);
-    futures_0_1_21.default = true;
-    idna_0_1_4.default = true;
-    lazy_static_1_0_0.default = true;
-    log_0_4_1.default = true;
-    rand_0_4_2.default = true;
-    tokio_core_0_1_17.default = true;
-    tokio_io_0_1_6.default = true;
-    trust_dns_proto_0_3_3."data-encoding" =
-      (f.trust_dns_proto_0_3_3."data-encoding" or false) ||
-      (f.trust_dns_proto_0_3_3.dnssec or false) ||
-      (trust_dns_proto_0_3_3.dnssec or false);
-    trust_dns_proto_0_3_3.default = (f.trust_dns_proto_0_3_3.default or true);
-    trust_dns_proto_0_3_3.dnssec =
-      (f.trust_dns_proto_0_3_3.dnssec or false) ||
-      (f.trust_dns_proto_0_3_3."dnssec-openssl" or false) ||
-      (trust_dns_proto_0_3_3."dnssec-openssl" or false) ||
-      (f.trust_dns_proto_0_3_3."dnssec-ring" or false) ||
-      (trust_dns_proto_0_3_3."dnssec-ring" or false);
-    trust_dns_proto_0_3_3.openssl =
-      (f.trust_dns_proto_0_3_3.openssl or false) ||
-      (f.trust_dns_proto_0_3_3."dnssec-openssl" or false) ||
-      (trust_dns_proto_0_3_3."dnssec-openssl" or false);
-    trust_dns_proto_0_3_3.ring =
-      (f.trust_dns_proto_0_3_3.ring or false) ||
-      (f.trust_dns_proto_0_3_3."dnssec-ring" or false) ||
-      (trust_dns_proto_0_3_3."dnssec-ring" or false);
-    trust_dns_proto_0_3_3.untrusted =
-      (f.trust_dns_proto_0_3_3.untrusted or false) ||
-      (f.trust_dns_proto_0_3_3."dnssec-ring" or false) ||
-      (trust_dns_proto_0_3_3."dnssec-ring" or false);
-    url_1_7_0.default = true;
-  }) [ byteorder_1_2_3_features error_chain_0_1_12_features futures_0_1_21_features idna_0_1_4_features lazy_static_1_0_0_features log_0_4_1_features rand_0_4_2_features tokio_core_0_1_17_features tokio_io_0_1_6_features url_1_7_0_features ];
-  trust_dns_resolver_0_8_2 = { features?(trust_dns_resolver_0_8_2_features {}) }: trust_dns_resolver_0_8_2_ {
-    dependencies = mapFeatures features ([ error_chain_0_1_12 futures_0_1_21 lazy_static_1_0_0 log_0_4_1 lru_cache_0_1_1 resolv_conf_0_6_0 tokio_core_0_1_17 trust_dns_proto_0_3_3 ])
-      ++ (if kernel == "windows" then mapFeatures features ([ ipconfig_0_1_6 ]) else []);
-    features = mkFeatures (features.trust_dns_resolver_0_8_2 or {});
-  };
-  trust_dns_resolver_0_8_2_features = f: updateFeatures f (rec {
-    error_chain_0_1_12.default = (f.error_chain_0_1_12.default or false);
-    futures_0_1_21.default = true;
-    ipconfig_0_1_6.default = true;
-    lazy_static_1_0_0.default = true;
-    log_0_4_1.default = true;
-    lru_cache_0_1_1.default = true;
-    resolv_conf_0_6_0.default = true;
-    resolv_conf_0_6_0.system = true;
-    tokio_core_0_1_17.default = true;
-    trust_dns_proto_0_3_3."dnssec-openssl" =
-      (f.trust_dns_proto_0_3_3."dnssec-openssl" or false) ||
-      (trust_dns_resolver_0_8_2."dnssec-openssl" or false) ||
-      (f.trust_dns_resolver_0_8_2."dnssec-openssl" or false);
-    trust_dns_proto_0_3_3."dnssec-ring" =
-      (f.trust_dns_proto_0_3_3."dnssec-ring" or false) ||
-      (trust_dns_resolver_0_8_2."dnssec-ring" or false) ||
-      (f.trust_dns_resolver_0_8_2."dnssec-ring" or false);
-    trust_dns_proto_0_3_3.default = true;
-    trust_dns_resolver_0_8_2.default = (f.trust_dns_resolver_0_8_2.default or true);
-    trust_dns_resolver_0_8_2.dnssec =
-      (f.trust_dns_resolver_0_8_2.dnssec or false) ||
-      (f.trust_dns_resolver_0_8_2."dnssec-openssl" or false) ||
-      (trust_dns_resolver_0_8_2."dnssec-openssl" or false) ||
-      (f.trust_dns_resolver_0_8_2."dnssec-ring" or false) ||
-      (trust_dns_resolver_0_8_2."dnssec-ring" or false);
-  }) [ error_chain_0_1_12_features futures_0_1_21_features lazy_static_1_0_0_features log_0_4_1_features lru_cache_0_1_1_features resolv_conf_0_6_0_features tokio_core_0_1_17_features trust_dns_proto_0_3_3_features ipconfig_0_1_6_features ];
-  try_lock_0_1_0 = { features?(try_lock_0_1_0_features {}) }: try_lock_0_1_0_ {};
-  try_lock_0_1_0_features = f: updateFeatures f (rec {
-    try_lock_0_1_0.default = (f.try_lock_0_1_0.default or true);
-  }) [];
-  twoway_0_1_8 = { features?(twoway_0_1_8_features {}) }: twoway_0_1_8_ {
-    dependencies = mapFeatures features ([ memchr_2_0_1 ]);
-    features = mkFeatures (features.twoway_0_1_8 or {});
-  };
-  twoway_0_1_8_features = f: updateFeatures f (rec {
-    memchr_2_0_1.default = (f.memchr_2_0_1.default or false);
-    memchr_2_0_1.use_std =
-      (f.memchr_2_0_1.use_std or false) ||
-      (twoway_0_1_8.use_std or false) ||
-      (f.twoway_0_1_8.use_std or false);
-    twoway_0_1_8."galil-seiferas" =
-      (f.twoway_0_1_8."galil-seiferas" or false) ||
-      (f.twoway_0_1_8.benchmarks or false) ||
-      (twoway_0_1_8.benchmarks or false);
-    twoway_0_1_8."test-set" =
-      (f.twoway_0_1_8."test-set" or false) ||
-      (f.twoway_0_1_8.all or false) ||
-      (twoway_0_1_8.all or false);
-    twoway_0_1_8."unchecked-index" =
-      (f.twoway_0_1_8."unchecked-index" or false) ||
-      (f.twoway_0_1_8.benchmarks or false) ||
-      (twoway_0_1_8.benchmarks or false) ||
-      (f.twoway_0_1_8.pcmp or false) ||
-      (twoway_0_1_8.pcmp or false);
-    twoway_0_1_8.default = (f.twoway_0_1_8.default or true);
-    twoway_0_1_8.jetscii =
-      (f.twoway_0_1_8.jetscii or false) ||
-      (f.twoway_0_1_8.all or false) ||
-      (twoway_0_1_8.all or false);
-    twoway_0_1_8.pattern =
-      (f.twoway_0_1_8.pattern or false) ||
-      (f.twoway_0_1_8.all or false) ||
-      (twoway_0_1_8.all or false) ||
-      (f.twoway_0_1_8.benchmarks or false) ||
-      (twoway_0_1_8.benchmarks or false);
-    twoway_0_1_8.pcmp =
-      (f.twoway_0_1_8.pcmp or false) ||
-      (f.twoway_0_1_8.all or false) ||
-      (twoway_0_1_8.all or false);
-    twoway_0_1_8.use_std =
-      (f.twoway_0_1_8.use_std or false) ||
-      (f.twoway_0_1_8.default or false) ||
-      (twoway_0_1_8.default or false);
-  }) [ memchr_2_0_1_features ];
-  typed_arena_1_3_0 = { features?(typed_arena_1_3_0_features {}) }: typed_arena_1_3_0_ {};
-  typed_arena_1_3_0_features = f: updateFeatures f (rec {
-    typed_arena_1_3_0.default = (f.typed_arena_1_3_0.default or true);
-  }) [];
-  ucd_util_0_1_1 = { features?(ucd_util_0_1_1_features {}) }: ucd_util_0_1_1_ {};
-  ucd_util_0_1_1_features = f: updateFeatures f (rec {
-    ucd_util_0_1_1.default = (f.ucd_util_0_1_1.default or true);
-  }) [];
-  unicase_1_4_2 = { features?(unicase_1_4_2_features {}) }: unicase_1_4_2_ {
-    dependencies = mapFeatures features ([]);
-    buildDependencies = mapFeatures features ([ version_check_0_1_3 ]);
-    features = mkFeatures (features.unicase_1_4_2 or {});
-  };
-  unicase_1_4_2_features = f: updateFeatures f (rec {
-    unicase_1_4_2.default = (f.unicase_1_4_2.default or true);
-    unicase_1_4_2.heapsize =
-      (f.unicase_1_4_2.heapsize or false) ||
-      (f.unicase_1_4_2.heap_size or false) ||
-      (unicase_1_4_2.heap_size or false);
-    unicase_1_4_2.heapsize_plugin =
-      (f.unicase_1_4_2.heapsize_plugin or false) ||
-      (f.unicase_1_4_2.heap_size or false) ||
-      (unicase_1_4_2.heap_size or false);
-    version_check_0_1_3.default = true;
-  }) [ version_check_0_1_3_features ];
-  unicase_2_1_0 = { features?(unicase_2_1_0_features {}) }: unicase_2_1_0_ {
-    buildDependencies = mapFeatures features ([ version_check_0_1_3 ]);
-    features = mkFeatures (features.unicase_2_1_0 or {});
-  };
-  unicase_2_1_0_features = f: updateFeatures f (rec {
-    unicase_2_1_0.default = (f.unicase_2_1_0.default or true);
-    version_check_0_1_3.default = true;
-  }) [ version_check_0_1_3_features ];
-  unicode_bidi_0_3_4 = { features?(unicode_bidi_0_3_4_features {}) }: unicode_bidi_0_3_4_ {
-    dependencies = mapFeatures features ([ matches_0_1_6 ]);
-    features = mkFeatures (features.unicode_bidi_0_3_4 or {});
-  };
-  unicode_bidi_0_3_4_features = f: updateFeatures f (rec {
-    matches_0_1_6.default = true;
-    unicode_bidi_0_3_4.default = (f.unicode_bidi_0_3_4.default or true);
-    unicode_bidi_0_3_4.flame =
-      (f.unicode_bidi_0_3_4.flame or false) ||
-      (f.unicode_bidi_0_3_4.flame_it or false) ||
-      (unicode_bidi_0_3_4.flame_it or false);
-    unicode_bidi_0_3_4.flamer =
-      (f.unicode_bidi_0_3_4.flamer or false) ||
-      (f.unicode_bidi_0_3_4.flame_it or false) ||
-      (unicode_bidi_0_3_4.flame_it or false);
-    unicode_bidi_0_3_4.serde =
-      (f.unicode_bidi_0_3_4.serde or false) ||
-      (f.unicode_bidi_0_3_4.with_serde or false) ||
-      (unicode_bidi_0_3_4.with_serde or false);
-  }) [ matches_0_1_6_features ];
-  unicode_normalization_0_1_7 = { features?(unicode_normalization_0_1_7_features {}) }: unicode_normalization_0_1_7_ {};
-  unicode_normalization_0_1_7_features = f: updateFeatures f (rec {
-    unicode_normalization_0_1_7.default = (f.unicode_normalization_0_1_7.default or true);
-  }) [];
-  unicode_width_0_1_5 = { features?(unicode_width_0_1_5_features {}) }: unicode_width_0_1_5_ {
-    features = mkFeatures (features.unicode_width_0_1_5 or {});
-  };
-  unicode_width_0_1_5_features = f: updateFeatures f (rec {
-    unicode_width_0_1_5.default = (f.unicode_width_0_1_5.default or true);
-  }) [];
-  unicode_xid_0_0_4 = { features?(unicode_xid_0_0_4_features {}) }: unicode_xid_0_0_4_ {
-    features = mkFeatures (features.unicode_xid_0_0_4 or {});
-  };
-  unicode_xid_0_0_4_features = f: updateFeatures f (rec {
-    unicode_xid_0_0_4.default = (f.unicode_xid_0_0_4.default or true);
-  }) [];
-  unicode_xid_0_1_0 = { features?(unicode_xid_0_1_0_features {}) }: unicode_xid_0_1_0_ {
-    features = mkFeatures (features.unicode_xid_0_1_0 or {});
-  };
-  unicode_xid_0_1_0_features = f: updateFeatures f (rec {
-    unicode_xid_0_1_0.default = (f.unicode_xid_0_1_0.default or true);
-  }) [];
-  unicode_categories_0_1_1 = { features?(unicode_categories_0_1_1_features {}) }: unicode_categories_0_1_1_ {};
-  unicode_categories_0_1_1_features = f: updateFeatures f (rec {
-    unicode_categories_0_1_1.default = (f.unicode_categories_0_1_1.default or true);
-  }) [];
-  unreachable_1_0_0 = { features?(unreachable_1_0_0_features {}) }: unreachable_1_0_0_ {
-    dependencies = mapFeatures features ([ void_1_0_2 ]);
-  };
-  unreachable_1_0_0_features = f: updateFeatures f (rec {
-    unreachable_1_0_0.default = (f.unreachable_1_0_0.default or true);
-    void_1_0_2.default = (f.void_1_0_2.default or false);
-  }) [ void_1_0_2_features ];
-  untrusted_0_5_1 = { features?(untrusted_0_5_1_features {}) }: untrusted_0_5_1_ {};
-  untrusted_0_5_1_features = f: updateFeatures f (rec {
-    untrusted_0_5_1.default = (f.untrusted_0_5_1.default or true);
-  }) [];
-  url_1_7_0 = { features?(url_1_7_0_features {}) }: url_1_7_0_ {
-    dependencies = mapFeatures features ([ idna_0_1_4 matches_0_1_6 percent_encoding_1_0_1 ]
-      ++ (if features.url_1_7_0.encoding or false then [ encoding_0_2_33 ] else []));
-    features = mkFeatures (features.url_1_7_0 or {});
-  };
-  url_1_7_0_features = f: updateFeatures f (rec {
-    encoding_0_2_33.default = true;
-    idna_0_1_4.default = true;
-    matches_0_1_6.default = true;
-    percent_encoding_1_0_1.default = true;
-    url_1_7_0.default = (f.url_1_7_0.default or true);
-    url_1_7_0.encoding =
-      (f.url_1_7_0.encoding or false) ||
-      (f.url_1_7_0.query_encoding or false) ||
-      (url_1_7_0.query_encoding or false);
-    url_1_7_0.heapsize =
-      (f.url_1_7_0.heapsize or false) ||
-      (f.url_1_7_0.heap_size or false) ||
-      (url_1_7_0.heap_size or false);
-  }) [ encoding_0_2_33_features idna_0_1_4_features matches_0_1_6_features percent_encoding_1_0_1_features ];
-  url_serde_0_2_0 = { features?(url_serde_0_2_0_features {}) }: url_serde_0_2_0_ {
-    dependencies = mapFeatures features ([ serde_1_0_59 url_1_7_0 ]);
-  };
-  url_serde_0_2_0_features = f: updateFeatures f (rec {
-    serde_1_0_59.default = true;
-    url_1_7_0.default = true;
-    url_serde_0_2_0.default = (f.url_serde_0_2_0.default or true);
-  }) [ serde_1_0_59_features url_1_7_0_features ];
-  utf8_ranges_1_0_0 = { features?(utf8_ranges_1_0_0_features {}) }: utf8_ranges_1_0_0_ {};
-  utf8_ranges_1_0_0_features = f: updateFeatures f (rec {
-    utf8_ranges_1_0_0.default = (f.utf8_ranges_1_0_0.default or true);
-  }) [];
-  uuid_0_5_1 = { features?(uuid_0_5_1_features {}) }: uuid_0_5_1_ {
-    dependencies = mapFeatures features ([ ]
-      ++ (if features.uuid_0_5_1.rand or false then [ rand_0_3_22 ] else []));
-    features = mkFeatures (features.uuid_0_5_1 or {});
-  };
-  uuid_0_5_1_features = f: updateFeatures f (rec {
-    rand_0_3_22.default = true;
-    uuid_0_5_1."md5" =
-      (f.uuid_0_5_1."md5" or false) ||
-      (f.uuid_0_5_1."v3" or false) ||
-      (uuid_0_5_1."v3" or false);
-    uuid_0_5_1."sha1" =
-      (f.uuid_0_5_1."sha1" or false) ||
-      (f.uuid_0_5_1."v5" or false) ||
-      (uuid_0_5_1."v5" or false);
-    uuid_0_5_1.default = (f.uuid_0_5_1.default or true);
-    uuid_0_5_1.rand =
-      (f.uuid_0_5_1.rand or false) ||
-      (f.uuid_0_5_1."v1" or false) ||
-      (uuid_0_5_1."v1" or false) ||
-      (f.uuid_0_5_1."v4" or false) ||
-      (uuid_0_5_1."v4" or false);
-  }) [ rand_0_3_22_features ];
-  uuid_0_6_3 = { features?(uuid_0_6_3_features {}) }: uuid_0_6_3_ {
-    dependencies = mapFeatures features ([ cfg_if_0_1_3 ]
-      ++ (if features.uuid_0_6_3.rand or false then [ rand_0_4_2 ] else []));
-    features = mkFeatures (features.uuid_0_6_3 or {});
-  };
-  uuid_0_6_3_features = f: updateFeatures f (rec {
-    cfg_if_0_1_3.default = true;
-    rand_0_4_2.default = true;
-    uuid_0_6_3."md5" =
-      (f.uuid_0_6_3."md5" or false) ||
-      (f.uuid_0_6_3."v3" or false) ||
-      (uuid_0_6_3."v3" or false);
-    uuid_0_6_3."sha1" =
-      (f.uuid_0_6_3."sha1" or false) ||
-      (f.uuid_0_6_3."v5" or false) ||
-      (uuid_0_6_3."v5" or false);
-    uuid_0_6_3."v1" =
-      (f.uuid_0_6_3."v1" or false) ||
-      (f.uuid_0_6_3.playground or false) ||
-      (uuid_0_6_3.playground or false);
-    uuid_0_6_3."v3" =
-      (f.uuid_0_6_3."v3" or false) ||
-      (f.uuid_0_6_3.playground or false) ||
-      (uuid_0_6_3.playground or false);
-    uuid_0_6_3."v4" =
-      (f.uuid_0_6_3."v4" or false) ||
-      (f.uuid_0_6_3.playground or false) ||
-      (uuid_0_6_3.playground or false);
-    uuid_0_6_3."v5" =
-      (f.uuid_0_6_3."v5" or false) ||
-      (f.uuid_0_6_3.playground or false) ||
-      (uuid_0_6_3.playground or false);
-    uuid_0_6_3.default = (f.uuid_0_6_3.default or true);
-    uuid_0_6_3.rand =
-      (f.uuid_0_6_3.rand or false) ||
-      (f.uuid_0_6_3."v3" or false) ||
-      (uuid_0_6_3."v3" or false) ||
-      (f.uuid_0_6_3."v4" or false) ||
-      (uuid_0_6_3."v4" or false) ||
-      (f.uuid_0_6_3."v5" or false) ||
-      (uuid_0_6_3."v5" or false);
-    uuid_0_6_3.serde =
-      (f.uuid_0_6_3.serde or false) ||
-      (f.uuid_0_6_3.playground or false) ||
-      (uuid_0_6_3.playground or false);
-    uuid_0_6_3.std =
-      (f.uuid_0_6_3.std or false) ||
-      (f.uuid_0_6_3.default or false) ||
-      (uuid_0_6_3.default or false) ||
-      (f.uuid_0_6_3.use_std or false) ||
-      (uuid_0_6_3.use_std or false);
-  }) [ cfg_if_0_1_3_features rand_0_4_2_features ];
-  vcpkg_0_2_3 = { features?(vcpkg_0_2_3_features {}) }: vcpkg_0_2_3_ {};
-  vcpkg_0_2_3_features = f: updateFeatures f (rec {
-    vcpkg_0_2_3.default = (f.vcpkg_0_2_3.default or true);
-  }) [];
-  vec_map_0_8_1 = { features?(vec_map_0_8_1_features {}) }: vec_map_0_8_1_ {
-    dependencies = mapFeatures features ([]);
-    features = mkFeatures (features.vec_map_0_8_1 or {});
-  };
-  vec_map_0_8_1_features = f: updateFeatures f (rec {
-    vec_map_0_8_1.default = (f.vec_map_0_8_1.default or true);
-    vec_map_0_8_1.serde =
-      (f.vec_map_0_8_1.serde or false) ||
-      (f.vec_map_0_8_1.eders or false) ||
-      (vec_map_0_8_1.eders or false);
-  }) [];
-  version_check_0_1_3 = { features?(version_check_0_1_3_features {}) }: version_check_0_1_3_ {};
-  version_check_0_1_3_features = f: updateFeatures f (rec {
-    version_check_0_1_3.default = (f.version_check_0_1_3.default or true);
-  }) [];
-  void_1_0_2 = { features?(void_1_0_2_features {}) }: void_1_0_2_ {
-    features = mkFeatures (features.void_1_0_2 or {});
-  };
-  void_1_0_2_features = f: updateFeatures f (rec {
-    void_1_0_2.default = (f.void_1_0_2.default or true);
-    void_1_0_2.std =
-      (f.void_1_0_2.std or false) ||
-      (f.void_1_0_2.default or false) ||
-      (void_1_0_2.default or false);
-  }) [];
-  walkdir_2_1_4 = { features?(walkdir_2_1_4_features {}) }: walkdir_2_1_4_ {
-    dependencies = mapFeatures features ([ same_file_1_0_2 ])
-      ++ (if kernel == "windows" then mapFeatures features ([ winapi_0_3_4 ]) else []);
-  };
-  walkdir_2_1_4_features = f: updateFeatures f (rec {
-    same_file_1_0_2.default = true;
-    walkdir_2_1_4.default = (f.walkdir_2_1_4.default or true);
-    winapi_0_3_4.default = true;
-    winapi_0_3_4.std = true;
-    winapi_0_3_4.winnt = true;
-  }) [ same_file_1_0_2_features winapi_0_3_4_features ];
-  want_0_0_4 = { features?(want_0_0_4_features {}) }: want_0_0_4_ {
-    dependencies = mapFeatures features ([ futures_0_1_21 log_0_4_1 try_lock_0_1_0 ]);
-  };
-  want_0_0_4_features = f: updateFeatures f (rec {
-    futures_0_1_21.default = true;
-    log_0_4_1.default = true;
-    try_lock_0_1_0.default = true;
-    want_0_0_4.default = (f.want_0_0_4.default or true);
-  }) [ futures_0_1_21_features log_0_4_1_features try_lock_0_1_0_features ];
-  widestring_0_2_2 = { features?(widestring_0_2_2_features {}) }: widestring_0_2_2_ {};
-  widestring_0_2_2_features = f: updateFeatures f (rec {
-    widestring_0_2_2.default = (f.widestring_0_2_2.default or true);
-  }) [];
-  winapi_0_2_8 = { features?(winapi_0_2_8_features {}) }: winapi_0_2_8_ {};
-  winapi_0_2_8_features = f: updateFeatures f (rec {
-    winapi_0_2_8.default = (f.winapi_0_2_8.default or true);
-  }) [];
-  winapi_0_3_4 = { features?(winapi_0_3_4_features {}) }: winapi_0_3_4_ {
-    dependencies = (if kernel == "i686-pc-windows-gnu" then mapFeatures features ([ winapi_i686_pc_windows_gnu_0_4_0 ]) else [])
-      ++ (if kernel == "x86_64-pc-windows-gnu" then mapFeatures features ([ winapi_x86_64_pc_windows_gnu_0_4_0 ]) else []);
-    features = mkFeatures (features.winapi_0_3_4 or {});
-  };
-  winapi_0_3_4_features = f: updateFeatures f (rec {
-    winapi_0_3_4.default = (f.winapi_0_3_4.default or true);
-    winapi_i686_pc_windows_gnu_0_4_0.default = true;
-    winapi_x86_64_pc_windows_gnu_0_4_0.default = true;
-  }) [ winapi_i686_pc_windows_gnu_0_4_0_features winapi_x86_64_pc_windows_gnu_0_4_0_features ];
-  winapi_build_0_1_1 = { features?(winapi_build_0_1_1_features {}) }: winapi_build_0_1_1_ {};
-  winapi_build_0_1_1_features = f: updateFeatures f (rec {
-    winapi_build_0_1_1.default = (f.winapi_build_0_1_1.default or true);
-  }) [];
-  winapi_i686_pc_windows_gnu_0_4_0 = { features?(winapi_i686_pc_windows_gnu_0_4_0_features {}) }: winapi_i686_pc_windows_gnu_0_4_0_ {};
-  winapi_i686_pc_windows_gnu_0_4_0_features = f: updateFeatures f (rec {
-    winapi_i686_pc_windows_gnu_0_4_0.default = (f.winapi_i686_pc_windows_gnu_0_4_0.default or true);
-  }) [];
-  winapi_x86_64_pc_windows_gnu_0_4_0 = { features?(winapi_x86_64_pc_windows_gnu_0_4_0_features {}) }: winapi_x86_64_pc_windows_gnu_0_4_0_ {};
-  winapi_x86_64_pc_windows_gnu_0_4_0_features = f: updateFeatures f (rec {
-    winapi_x86_64_pc_windows_gnu_0_4_0.default = (f.winapi_x86_64_pc_windows_gnu_0_4_0.default or true);
-  }) [];
-  wincolor_0_1_6 = { features?(wincolor_0_1_6_features {}) }: wincolor_0_1_6_ {
-    dependencies = mapFeatures features ([ winapi_0_3_4 ]);
-  };
-  wincolor_0_1_6_features = f: updateFeatures f (rec {
-    winapi_0_3_4.consoleapi = true;
-    winapi_0_3_4.default = true;
-    winapi_0_3_4.minwindef = true;
-    winapi_0_3_4.processenv = true;
-    winapi_0_3_4.winbase = true;
-    winapi_0_3_4.wincon = true;
-    wincolor_0_1_6.default = (f.wincolor_0_1_6.default or true);
-  }) [ winapi_0_3_4_features ];
-  winreg_0_5_0 = { features?(winreg_0_5_0_features {}) }: winreg_0_5_0_ {
-    dependencies = mapFeatures features ([ winapi_0_3_4 ]);
-    features = mkFeatures (features.winreg_0_5_0 or {});
-  };
-  winreg_0_5_0_features = f: updateFeatures f (rec {
-    winapi_0_3_4."ktmw32" =
-      (f.winapi_0_3_4."ktmw32" or false) ||
-      (winreg_0_5_0.transactions or false) ||
-      (f.winreg_0_5_0.transactions or false);
-    winapi_0_3_4.default = true;
-    winapi_0_3_4.handleapi = true;
-    winapi_0_3_4.minwindef = true;
-    winapi_0_3_4.winerror = true;
-    winapi_0_3_4.winnt = true;
-    winapi_0_3_4.winreg = true;
-    winreg_0_5_0.default = (f.winreg_0_5_0.default or true);
-    winreg_0_5_0.serde =
-      (f.winreg_0_5_0.serde or false) ||
-      (f.winreg_0_5_0."serialization-serde" or false) ||
-      (winreg_0_5_0."serialization-serde" or false);
-    winreg_0_5_0.transactions =
-      (f.winreg_0_5_0.transactions or false) ||
-      (f.winreg_0_5_0."serialization-serde" or false) ||
-      (winreg_0_5_0."serialization-serde" or false);
-  }) [ winapi_0_3_4_features ];
-  winutil_0_1_1 = { features?(winutil_0_1_1_features {}) }: winutil_0_1_1_ {
-    dependencies = (if kernel == "windows" then mapFeatures features ([ winapi_0_3_4 ]) else []);
-  };
-  winutil_0_1_1_features = f: updateFeatures f (rec {
-    winapi_0_3_4."wow64apiset" = true;
-    winapi_0_3_4.default = true;
-    winapi_0_3_4.processthreadsapi = true;
-    winapi_0_3_4.winbase = true;
-    winutil_0_1_1.default = (f.winutil_0_1_1.default or true);
-  }) [ winapi_0_3_4_features ];
-  ws2_32_sys_0_2_1 = { features?(ws2_32_sys_0_2_1_features {}) }: ws2_32_sys_0_2_1_ {
-    dependencies = mapFeatures features ([ winapi_0_2_8 ]);
-    buildDependencies = mapFeatures features ([ winapi_build_0_1_1 ]);
-  };
-  ws2_32_sys_0_2_1_features = f: updateFeatures f (rec {
-    winapi_0_2_8.default = true;
-    winapi_build_0_1_1.default = true;
-    ws2_32_sys_0_2_1.default = (f.ws2_32_sys_0_2_1.default or true);
-  }) [ winapi_0_2_8_features winapi_build_0_1_1_features ];
-}
diff --git a/web/converse/Cargo.toml b/web/converse/Cargo.toml
index ddba316a9e..5ace4dabe1 100644
--- a/web/converse/Cargo.toml
+++ b/web/converse/Cargo.toml
@@ -2,11 +2,11 @@
 name = "converse"
 version = "0.1.0"
 authors = ["Vincent Ambo <mail@tazj.in>"]
-license = "AGPL-3.0-or-later"
+license = "GPL-3.0"
 
 [dependencies]
-actix = "0.5"
-actix-web = "0.6"
+actix = "0.7"
+actix-web = "0.7"
 askama = "0.6"
 chrono = { version = "0.4", features = ["serde"] }
 comrak = "0.2"
@@ -21,7 +21,7 @@ mime_guess = "2.0.0-alpha"
 pq-sys = "=0.4.4"
 r2d2 = "0.8"
 rand = "0.4"
-reqwest = "0.8"
+reqwest = "0.9"
 serde = "1.0"
 serde_derive = "1.0"
 serde_json = "1.0"
diff --git a/web/converse/default.nix b/web/converse/default.nix
index 24d24cf035..a750671196 100644
--- a/web/converse/default.nix
+++ b/web/converse/default.nix
@@ -1,18 +1,7 @@
-# This Nix derivation imports the generated Carnix sources and builds
-# Converse.
-#
-# To work around an issue in Carnix ([1] & [2]) the attributes of the
-# comrak crate have been overridden with a dummy environment variable
-# to simulate a Cargo-based build. This requires a manual change to
-# `Cargo.nix` when updating dependencies.
-#
-# [1]: https://nest.pijul.com/pmeunier/carnix/discussions/2
-# [2]: https://nest.pijul.com/pmeunier/carnix/discussions/3
+{ pkgs, ... }:
 
-{ pkgs ? import <nixpkgs> {}, ... }:
-
-let cargo = pkgs.callPackage ./Cargo.nix {};
-in {
-  # Build is not yet fixed up for the depot.
-  meta.ci = false;
+pkgs.naersk.buildPackage {
+  src = ./.;
+  buildInputs = with pkgs; [ openssl postgresql.lib ];
+  nativeBuildInputs = [ pkgs.pkgconfig ];
 }
diff --git a/web/converse/src/handlers.rs b/web/converse/src/handlers.rs
index efdffb3f91..d558afbe12 100644
--- a/web/converse/src/handlers.rs
+++ b/web/converse/src/handlers.rs
@@ -46,13 +46,13 @@ const NEW_THREAD_LENGTH_ERR: &'static str = "Title and body can not be empty!";
 /// Represents the state carried by the web server actors.
 pub struct AppState {
     /// Address of the database actor
-    pub db: Addr<Syn, DbExecutor>,
+    pub db: Addr<DbExecutor>,
 
     /// Address of the OIDC actor
-    pub oidc: Addr<Syn, OidcExecutor>,
+    pub oidc: Addr<OidcExecutor>,
 
     /// Address of the rendering actor
-    pub renderer: Addr<Syn, Renderer>,
+    pub renderer: Addr<Renderer>,
 }
 
 pub fn forum_index(state: State<AppState>) -> ConverseResponse {
@@ -113,9 +113,9 @@ pub struct NewThreadForm {
 
 /// This handler receives a "New thread"-form and redirects the user
 /// to the new thread after creation.
-pub fn submit_thread(state: State<AppState>,
-                     input: Form<NewThreadForm>,
-                     req: HttpRequest<AppState>) -> ConverseResponse {
+pub fn submit_thread((state, input, req): (State<AppState>,
+                                           Form<NewThreadForm>,
+                                           HttpRequest<AppState>)) -> ConverseResponse {
     // Trim whitespace out of inputs:
     let input = NewThreadForm {
         title: input.title.trim().into(),
@@ -328,7 +328,7 @@ impl EmbeddedFile for App<AppState> {
 pub struct RequireLogin;
 
 impl <S> Middleware<S> for RequireLogin {
-    fn start(&self, req: &mut HttpRequest<S>) -> actix_web::Result<Started> {
+    fn start(&self, req: &HttpRequest<S>) -> actix_web::Result<Started> {
         let logged_in = req.identity().is_some();
         let is_oidc_req = req.path().starts_with("/oidc");
 
diff --git a/web/converse/src/main.rs b/web/converse/src/main.rs
index 55d84b981b..5c8a188fc3 100644
--- a/web/converse/src/main.rs
+++ b/web/converse/src/main.rs
@@ -90,7 +90,7 @@ fn config_default(name: &str, default: &str) -> String {
     env::var(name).unwrap_or(default.into())
 }
 
-fn start_db_executor() -> Addr<Syn, DbExecutor> {
+fn start_db_executor() -> Addr<DbExecutor> {
     info!("Initialising database connection pool ...");
     let db_url = config("DATABASE_URL");
 
@@ -100,7 +100,7 @@ fn start_db_executor() -> Addr<Syn, DbExecutor> {
     SyncArbiter::start(2, move || DbExecutor(pool.clone()))
 }
 
-fn schedule_search_refresh(db: Addr<Syn, DbExecutor>) {
+fn schedule_search_refresh(db: Addr<DbExecutor>) {
     use tokio::prelude::*;
     use tokio::timer::Interval;
     use std::time::{Duration, Instant};
@@ -114,7 +114,7 @@ fn schedule_search_refresh(db: Addr<Syn, DbExecutor>) {
     thread::spawn(|| tokio::run(task));
 }
 
-fn start_oidc_executor(base_url: &str) -> Addr<Syn, OidcExecutor> {
+fn start_oidc_executor(base_url: &str) -> Addr<OidcExecutor> {
     info!("Initialising OIDC integration ...");
     let oidc_url = config("OIDC_DISCOVERY_URL");
     let oidc_config = oidc::load_oidc(&oidc_url)
@@ -130,7 +130,7 @@ fn start_oidc_executor(base_url: &str) -> Addr<Syn, OidcExecutor> {
     oidc.start()
 }
 
-fn start_renderer() -> Addr<Syn, Renderer> {
+fn start_renderer() -> Addr<Renderer> {
     let comrak = comrak::ComrakOptions{
         github_pre_lang: true,
         ext_strikethrough: true,
@@ -155,9 +155,9 @@ fn gen_session_key() -> [u8; 64] {
 }
 
 fn start_http_server(base_url: String,
-                     db_addr: Addr<Syn, DbExecutor>,
-                     oidc_addr: Addr<Syn, OidcExecutor>,
-                     renderer_addr: Addr<Syn, Renderer>) {
+                     db_addr: Addr<DbExecutor>,
+                     oidc_addr: Addr<OidcExecutor>,
+                     renderer_addr: Addr<Renderer>) {
     info!("Initialising HTTP server ...");
     let bind_host = config_default("CONVERSE_BIND_HOST", "127.0.0.1:4567");
     let key = gen_session_key();
@@ -182,14 +182,14 @@ fn start_http_server(base_url: String,
             .middleware(identity)
             .resource("/", |r| r.method(Method::GET).with(forum_index))
             .resource("/thread/new", |r| r.method(Method::GET).with(new_thread))
-            .resource("/thread/submit", |r| r.method(Method::POST).with3(submit_thread))
-            .resource("/thread/reply", |r| r.method(Method::POST).with3(reply_thread))
-            .resource("/thread/{id}", |r| r.method(Method::GET).with3(forum_thread))
-            .resource("/post/{id}/edit", |r| r.method(Method::GET).with3(edit_form))
-            .resource("/post/edit", |r| r.method(Method::POST).with3(edit_post))
-            .resource("/search", |r| r.method(Method::GET).with2(search_forum))
+            .resource("/thread/submit", |r| r.method(Method::POST).with(submit_thread))
+            .resource("/thread/reply", |r| r.method(Method::POST).with(reply_thread))
+            .resource("/thread/{id}", |r| r.method(Method::GET).with(forum_thread))
+            .resource("/post/{id}/edit", |r| r.method(Method::GET).with(edit_form))
+            .resource("/post/edit", |r| r.method(Method::POST).with(edit_post))
+            .resource("/search", |r| r.method(Method::GET).with(search_forum))
             .resource("/oidc/login", |r| r.method(Method::GET).with(login))
-            .resource("/oidc/callback", |r| r.method(Method::POST).with3(callback))
+            .resource("/oidc/callback", |r| r.method(Method::POST).with(callback))
             .static_file("/static/highlight.css", include_bytes!("../static/highlight.css"))
             .static_file("/static/highlight.js", include_bytes!("../static/highlight.js"))
             .static_file("/static/styles.css", include_bytes!("../static/styles.css"));
diff --git a/web/converse/src/oidc.rs b/web/converse/src/oidc.rs
index 970aeb92aa..8491435968 100644
--- a/web/converse/src/oidc.rs
+++ b/web/converse/src/oidc.rs
@@ -27,8 +27,6 @@ use reqwest;
 use url::Url;
 use url_serde;
 use errors::*;
-use reqwest::header::Authorization;
-use hyper::header::Bearer;
 
 /// This structure represents the contents of an OIDC discovery
 /// document.
@@ -130,7 +128,7 @@ impl Handler<RetrieveToken> for OidcExecutor {
         let token: TokenResponse = response.json()?;
 
         let user: Userinfo = client.get(&self.oidc_config.userinfo_endpoint)
-            .header(Authorization(Bearer { token: token.access_token }))
+            .header("Authorization", format!("Bearer {}", token.access_token ))
             .send()?
             .json()?;