these 4 derivations will be built:
  /nix/store/p8fc1kdw1dx1c0nc9ppy24ac6x2may8q-Cargo.toml.drv
  /nix/store/g5lhz84sdlz9lnpk380w0qni0pzxyl2s-source.drv
  /nix/store/lwmli2aidm81661dqcpmd0fpnwybvaik-harmonia-deps-3.3.0.drv
  /nix/store/nhhaj16acgf59zkb2hj08ilhw4aix8vj-harmonia-clippy-3.3.0.drv