these 3 derivations will be built:
  /nix/store/kk7xnlaw6c8ywhmdbdnr505lbmcvw5h5-source.drv
  /nix/store/a0l5pcm57bhbxxcp4gsy7rfghj5m46da-harmonia-deps-3.2.0.drv
  /nix/store/92f31908d2yyvdfhpf8rywfwdmapzn9b-harmonia-clippy-3.2.0.drv