these 6 derivations will be built:
  /nix/store/0dzs0jgqvrb256d34nv7cxq0nx6bsv6x-crate-rstest_macros-0.28.0.tar.gz.drv
  /nix/store/d293bfdwi44d2lla8rvrivxa3d2j7w13-rstest_macros-0.28.0.drv
  /nix/store/p12cg4k31f17zqll56zcwr7grqw1bry2-crate-rstest-0.28.0.tar.gz.drv
  /nix/store/jv0ayflj3gld7vvnk05cgdcd36a3srgx-rstest-0.28.0.drv
  /nix/store/nr4rnap1ghx4dsni1w0irjbkcbwk34s6-cargo-vendor-dir.drv
  /nix/store/sj1pbhp3r6rndk2115dinh0rgk6aljp7-nix-ld.drv