feat(tvix): add CI targets for checking crate features powerset r/8211

Closes: https://b.tvl.fyi/issues/401

With this change all crate features (and their combinations) will be built and
tested in CI.

From now on, when adding/removing a Cargo feature for a crate,
you will want to add it to the features power set that gets tested in CI.
For each crate there's a default.nix with a `mkFeaturePowerset` invocation,
modify the list to include/remove the feature.
Note that you don't want to add "collection" features,
such as `fs` for tvix-[ca]store or `default`.

Change-Id: I966dde1413d057770787da3296cce9c1924570e0
Reviewed-on: https://cl.tvl.fyi/c/depot/+/11717
Reviewed-by: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI

1 files changed, 2 insertions, 0 deletions

diff --git a/tvix/default.nix b/tvix/default.nix
index cffea7b95487..9a362658c8d3 100644
--- a/tvix/default.nix
+++ b/tvix/default.nix
@@ -293,4 +293,6 @@ in
     "shell"
     "rust-docs"
   ];
+
+  utils = import ./utils.nix { inherit lib depot; };
 }