these 3 derivations will be built:
  /nix/store/8l2v1ddc61p8kl3shlrc26klnydkj4va-similar-3.2.0.drv
  /nix/store/8ga8hh1hqqz96fj4ka17y0v18phsfbnv-cargo-vendor-dir.drv
  /nix/store/z52597ifvn7h1g0q8w4k3zm9f2k8py6d-nix-diff-0.1.0.drv