these 3 derivations will be built:
  /nix/store/q2faw95qibzv0fdfj23xqmbbvl9imzhf-similar-3.2.0.drv
  /nix/store/rc3ddl8j779lqd24hc0p4ndg2njyjyp5-cargo-vendor-dir.drv
  /nix/store/7kxx1gvlyriyz1z1x6adrfsi0vy0f83g-nix-diff-0.1.0.drv