these 4 derivations will be built:
  /nix/store/0gdnqy1pj00w92bgfvca6ljsvvqyfdkk-crate-cc-1.4.7.tar.gz.drv
  /nix/store/b4mbslpwfn4khng6sw05a7g6s04y3vax-cc-1.4.7.drv
  /nix/store/hrl19d6g1dp2z401dky046n28bjdhxby-cargo-vendor-dir.drv
  /nix/store/580qjjgzlh14dm7s18rmzr7l0jmbng5a-nix-ld.drv