these 4 derivations will be built:
  /nix/store/dia5kny6a6b0d2g7dqxrs4djfgcv192c-Cargo.toml.drv
  /nix/store/n1dxm0nb982cyjwmf1f30hr5c9bdmxlh-source.drv
  /nix/store/p1b14pj9iasrv89w4zy9vl296fc4fb3v-harmonia-deps-3.3.0.drv
  /nix/store/qflf283qq6d603ryqvhwfhn4cbqbp7yn-harmonia-clippy-3.3.0.drv