these 3 derivations will be built:
  /nix/store/s3668zv6yrzn4ph9j1dc1014kqkqpiwn-source.drv
  /nix/store/v2qgzg7ixap4qvrg29nal92hycb7r4vj-harmonia-deps-3.2.0.drv
  /nix/store/ivg404sijyyn8gg3l2klnving6kyn2v5-harmonia-clippy-3.2.0.drv