these 6 derivations will be built:
  /nix/store/3lmscy7hkpckhcxb4zil9axz532bcfm1-cargo-package-tokio-1.53.1.drv
  /nix/store/mn5m2lwcx56203axl2kfhfymb7904mm6-vendor-registry.drv
  /nix/store/6707vx2zgk05g7r92g6rv9292xmwxf9r-vendor-cargo-deps.drv
  /nix/store/fkxr2wcynmk96rzkhabw3wjcrmf13qlj-source.drv
  /nix/store/rgxgjwy7al7l4m9cq7xlm1y7daivz9sy-harmonia-deps-3.1.0.drv
  /nix/store/c969yf9xvya1vg6853n2kfcbm8dwv783-harmonia-llvm-cov-3.1.0.drv