these 3 derivations will be built:
  /nix/store/xq5kb79ll66858md3f7a0rpb4qaid7qv-similar-3.2.0.drv
  /nix/store/5x9d98cfg4l0207038zyijx69p8nnm6p-cargo-vendor-dir.drv
  /nix/store/3wrfhprd3gz5dym1l1p88d4cw84zhvql-nix-diff-0.1.0.drv