these 3 derivations will be built:
  /nix/store/5vhxdwz6ql41jqy92xk13m78jzpnx66x-similar-3.2.0.drv
  /nix/store/qs6dqzirg06b3wqmr4fsfwjm1c2g3558-cargo-vendor-dir.drv
  /nix/store/3dqb9pbbkd04m9wyjh3zcp1ilrrihb7p-nix-diff-0.1.0.drv