these 4 derivations will be built:
  /nix/store/6h6zjgiqhscpd5m5xznr70ngvwqlfdl8-Cargo.toml.drv
  /nix/store/6f2957pnbq4icmhlpzmg4gkmy8hmxbdb-source.drv
  /nix/store/v8skdlmgkv9p4wmipb5jd4hm9c9cizlf-harmonia-deps-3.3.0.drv
  /nix/store/v1bb42n46cfgjf33v6hgqd8ikljlixz7-harmonia-clippy-3.3.0.drv