these 5 derivations will be built:
  /nix/store/l87kynm9raz94mhmxrchs45h6yifyszn-vendor-registry.drv
  /nix/store/4a9wka62sj1lgnxvj7h7hs3nkw23rb1j-vendor-cargo-deps.drv
  /nix/store/l7llpiliqqhy4frsvgd12zmnryvkcr83-source.drv
  /nix/store/7w6c0lkyy011c7yc3s096aybhj4vb95r-harmonia-deps-3.1.0.drv
  /nix/store/ck2ssr22qipymmvlcqxw09bsqhybif56-harmonia-3.1.0.drv