these 3 derivations will be built:
  /nix/store/4x231xl9b27rb7v82zsvh2dj2v6jvfcn-cc-1.6.0.drv
  /nix/store/5nfvmxl82fbb6x6f0b7n11m6359ngrcg-cargo-vendor-dir.drv
  /nix/store/nr4m3mx7nlfjzspa2d81jfl3ff4qmqis-nix-ld.drv