these 4 derivations will be built:
  /nix/store/dyikisf3mz5fwa8jg3qlyymjdhmz0mp3-crate-cc-1.2.67.tar.gz.drv
  /nix/store/yybim0m93n7z02i2fmycvwixhj4rlkd8-cc-1.2.67.drv
  /nix/store/a687czpabh4i0ybzwlp0hqph7x9jgbd6-cargo-vendor-dir.drv
  /nix/store/gr1ybaka9knz0hnhyyvgsbj5lql7vhjc-nix-ld.drv