these 5 derivations will be built:
  /nix/store/c9lnk7cjsk9s7d0v736mirg6kzrrzjca-vendor-registry.drv
  /nix/store/nfpa27gdf87xi5s09zhjfxggnc521x04-vendor-cargo-deps.drv
  /nix/store/dgp575p486a090rdjs2833ycm55f27np-source.drv
  /nix/store/rha90zc4y01z0mc8jd13d1v21gai2q7s-harmonia-deps-3.1.0.drv
  /nix/store/7pcbwa7d74f91kzpci67mpqyv30s1ll6-harmonia-3.1.0.drv