fix(tvix/nix-compat): require async and async,wire for some tests r/8210

Makes the following build:
  `cargo test --no-default-features --features async`
  `cargo test --no-default-features --features wire`

Change-Id: I47ba0c944f08895f67ed3b861706ef2e4ba384b3
Reviewed-on: https://cl.tvl.fyi/c/depot/+/11739
Tested-by: BuildkiteCI
Reviewed-by: flokli <flokli@flokli.de>

2 files changed, 3 insertions, 1 deletions

diff --git a/tvix/nix-compat/src/nar/wire/mod.rs b/tvix/nix-compat/src/nar/wire/mod.rs
index 9e99b530ce15..26da04e67ce1 100644
--- a/tvix/nix-compat/src/nar/wire/mod.rs
+++ b/tvix/nix-compat/src/nar/wire/mod.rs
@@ -97,7 +97,7 @@ const TOK_PAD_PAR: [u8; 24] = *b"\0\0\0\0\0\0\0\0\x01\0\0\0\0\0\0\0)\0\0\0\0\0\0
 #[derive(Debug)]
 pub(crate) enum PadPar {}
 
-#[cfg(feature = "async")]
+#[cfg(all(feature = "async", feature = "wire"))]
 impl crate::wire::reader::Tag for PadPar {
     const PATTERN: &'static [u8] = &TOK_PAD_PAR;
 
diff --git a/tvix/nix-compat/src/wire/bytes/reader/mod.rs b/tvix/nix-compat/src/wire/bytes/reader/mod.rs
index 6bd376c06fb8..c0227f4e6cff 100644
--- a/tvix/nix-compat/src/wire/bytes/reader/mod.rs
+++ b/tvix/nix-compat/src/wire/bytes/reader/mod.rs
@@ -414,6 +414,7 @@ mod tests {
     }
 
     /// Read the trailer immediately if there is no payload.
+    #[cfg(feature = "async")]
     #[tokio::test]
     async fn read_trailer_immediately() {
         use crate::nar::wire::PadPar;
@@ -431,6 +432,7 @@ mod tests {
     }
 
     /// Read the trailer even if we only read the exact payload size.
+    #[cfg(feature = "async")]
     #[tokio::test]
     async fn read_exact_trailer() {
         use crate::nar::wire::PadPar;