these 5 derivations will be built:
  /nix/store/ccjf1myic2f5nqkh2r7bzgg71q8hwg24-source.drv
  /nix/store/j4a0bvkv0vldikqzki0bkgb6nhwywp7r-vendor-registry.drv
  /nix/store/g779k5l22slizishia3x0h4d2p7q397w-vendor-cargo-deps.drv
  /nix/store/7xilmc4iqczqd2kbhqzgs3mk40f2y4hv-harmonia-deps-3.2.0.drv
  /nix/store/j2asfgkf2i3p0s7qfdgmcgfyldmw55a3-harmonia-3.2.0.drv