these 5 derivations will be built:
  /nix/store/aq2kd5p7p21i1b9lsbih1dzw3n61bnlb-vendor-registry.drv
  /nix/store/1qwc864j3qmd0yifxp4xslnwb3xn3sjl-vendor-cargo-deps.drv
  /nix/store/h9w850rzffwmgsixkbh7zsk2kgr21scf-source.drv
  /nix/store/w9c1w6gq1n48mbxhcspv81ni5vrrmgqw-harmonia-deps-3.2.0.drv
  /nix/store/pg4g4jd13l2n45f2yr54pcj4nr3iyn3d-harmonia-3.2.0.drv