these 3 derivations will be built:
  /nix/store/zibqfac6anpm33lh96bfxnx9zka7b98z-similar-3.2.0.drv
  /nix/store/5cgsvj2p4qkf1vsyy2d6nqsvlanxm61z-cargo-vendor-dir.drv
  /nix/store/qhwjnhxn7pfr9vjlz3jcv4l9m51zgidh-nix-diff-0.1.0.drv