these 3 derivations will be built:
  /nix/store/8gdilmy39znvla0ip0vil89qjkajmqcj-source.drv
  /nix/store/aw97d6xqivwkjiv3z36bvjzdn1vc6pv9-harmonia-deps-3.3.0.drv
  /nix/store/cqn2gg7l7bg24c61cjq313ji6j0zj31s-harmonia-clippy-3.3.0.drv