these 5 derivations will be built:
  /nix/store/5i8yhz6bmnwzfk4azx0mbfyc9vmkw7kc-Cargo.toml.drv
  /nix/store/6r0116gmdzlac9smm8r9m4zq160lm3iq-Cargo.toml.drv
  /nix/store/66kmkkslfxb5k5wcljgw6dp92868sx1w-source.drv
  /nix/store/vndlmb7z9pfl8814sq40c3y8wx6qbzaf-herdr-eternal-deps-0.1.0.drv
  /nix/store/5nldz01nx54b42qrbv6ahddn8lzcb6ki-herdr-eternal-clippy-0.1.0.drv