these 4 derivations will be built:
  /nix/store/n1nfqxgk9454nal9yxmv9h13q3nyqpkn-vendor-registry.drv
  /nix/store/dqr61kqbvgbkyw7wfv8z35rk6nzz99j9-vendor-cargo-deps.drv
  /nix/store/q1wsa1h4jx6xsjh7b67bnwj9zpax0c6b-tincd-deps-0.1.0.drv
  /nix/store/49i8lwdf737fq3raxb8mlhr6x9xg09ci-tincd-test-0.1.0.drv