these 3 derivations will be built:
  /nix/store/21gg0l2mxsff7qc931r2x52qyjk8k1dr-source.drv
  /nix/store/b70clai3hn32macssf5dbgdny7zg6zf6-harmonia-deps-3.2.0.drv
  /nix/store/024aajaf01wncjfcc2wl1v4nc9ym2mjs-harmonia-clippy-3.2.0.drv