these 5 derivations will be built:
  /nix/store/5z5z06f1zjigk9b280gi9iafgyhiyk2i-vendor-registry.drv
  /nix/store/9f64s0wfc3wy237mbf5p5f7jasvbjjy2-vendor-cargo-deps.drv
  /nix/store/nchswb3qgizsn7hb5yzi71qipnp07mvm-source.drv
  /nix/store/5bznginh1ffny02x3srbb1l0zc8ccl8l-harmonia-deps-3.1.0.drv
  /nix/store/6qax3amgw10qvpk5p27gf712f1sf6vaa-harmonia-3.1.0.drv