these 4 derivations will be built:
  /nix/store/cgx18mdhjx08y86mnmm0piip2m71lfxr-crate-cc-1.11.1.tar.gz.drv
  /nix/store/38nrxz9bc7kx15z8ni8nlpz0qgjlr8k9-cc-1.11.1.drv
  /nix/store/yvr803bvrbjlp7avq19ad3s59kqz2ph6-cargo-vendor-dir.drv
  /nix/store/5vy5lr4b3qx9fxs1wz7gjb7n14zlzjn8-nix-ld.drv