these 3 derivations will be built:
  /nix/store/v3kmx5ny5rdaygh70lhl2s123pqmg2x3-source.drv
  /nix/store/vq8hd8fikqimjvmkjy3xw007xrpj0gn1-harmonia-deps-3.3.0.drv
  /nix/store/8d1als6nx3s5k23vdd7lhvxzazs1rsla-harmonia-clippy-3.3.0.drv