bug: Darwin tests are completely broken (failing to eval)

[booxter]

Are you following the right branch?

• My Nixpkgs and Home Manager versions are in sync

Is there an existing issue for this?

• I have searched the existing issues

Issue description

It can be reproduced by executing on Darwin:

$ nix build --reference-lock-file flake.lock ./tests#test-all

This can be seen in https://github.com/nix-community/home-manager/actions/runs/13360690687/job/37309875415?pr=6475

       error: assertion '(allDeps isBuiltByBootstrapFilesCompiler [ ((stage1Packages prevStage)) ((darwinPackages prevStage)) ((llvmLibrariesDeps prevStage)) ((llvmToolsDeps prevStage)) ((sdkPackages prevStage)) ((sdkDarwinPackages prevStage)) ])' failed
       at /nix/store/ja4c4d5w9r3jb0yawr9q9fk2y0j55fmm-source/pkgs/stdenv/darwin/default.nix:753:5:
          752|
          753|     assert allDeps isBuiltByBootstrapFilesCompiler [
             |     ^
          754|       (stage1Packages prevStage)

The tests were broken by #6404

There's some difference between Darwin and Linux stdenvs that was not considered in that PR. Darwin stdenv stage1 includes packages like jq and coreutils and gnugrep that I think are not part of Linux stdenv.

Maintainer CC

@rycee @khaneliman

System information

$ nix-shell -p nix-info --run "nix-info -m"
 - system: `"aarch64-darwin"`
 - host os: `Darwin 24.3.0, macOS 15.3`
 - multi-user?: `yes`
 - sandbox: `no`
 - version: `nix-env (Nix) 2.24.11`
 - channels(root): `"nixpkgs"`
 - nixpkgs: `/nix/store/wzhdvy8pvcrfc1flrnhrbrpyb0q38pp8-source`