these 3 derivations will be built:
  /nix/store/k8rbd3wahj7ydk2p9i4x23m0g0dgvab8-anyhow-1.0.104.drv
  /nix/store/3r2smgpdn9jzy7hc641war8iihvfw8j3-cargo-vendor-dir.drv
  /nix/store/f71kbywvwswjjc42262flciqlg7g3rsc-nix-wire-0.1.0.drv