these 4 derivations will be built:
  /nix/store/b1fq0pklmc316xmilr4w13dp0nbqwwxg-Cargo.toml.drv
  /nix/store/z4q56m5gn6wm2sbkla6aac01hbacmlps-source.drv
  /nix/store/iv9kajhwvs32bllk5jalr4g768ffi89q-harmonia-deps-3.3.0.drv
  /nix/store/xcivcvpc3658cbyijq2fn4f3qrgabb79-harmonia-clippy-3.3.0.drv