From a3957236ce752b03d0ba3c388422b730129c6085 Mon Sep 17 00:00:00 2001
From: Sergei Trofimovich <slyich@gmail.com>
Date: Thu, 28 Dec 2023 20:30:19 +0000
Subject: [PATCH] cargo: fix `tests` eval

Without the change `cargo` tests fail the eval as:

    $ nix build --no-link -f. cargo.tests
    error: attribute 'tests' missing

           at pkgs/development/compilers/rust/cargo.nix:22:15:

               21|
               22|   passthru = {
                 |               ^
               23|     rustc = rustc;

The test teried to pull `tests` attribute from `rustc`, which is a
wrapper without `tests`. Pull tests from unwrapped rust instead.
---
 pkgs/development/compilers/rust/cargo.nix | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pkgs/development/compilers/rust/cargo.nix b/pkgs/development/compilers/rust/cargo.nix
index 1bc1777acd47..ff0ecf45fd23 100644
--- a/pkgs/development/compilers/rust/cargo.nix
+++ b/pkgs/development/compilers/rust/cargo.nix
@@ -21,7 +21,7 @@ rustPlatform.buildRustPackage.override {
 
   passthru = {
     rustc = rustc;
-    inherit (rustc) tests;
+    inherit (rustc.unwrapped) tests;
   };
 
   # Upstream rustc still assumes that musl = static[1].  The fix for