these 7 derivations will be built:
  /nix/store/4qdiyjam1lfqxfq1zingbg1xv71g25s1-cargo-src-cc-1.8.0.drv
  /nix/store/ng1f1qa4w3fgix9bbgg6pwxgqrbccd2n-cargo-package-cc-1.8.0.drv
  /nix/store/rn35gwzjns3f3vsgfjzidsnah368gkki-vendor-registry.drv
  /nix/store/2g31763dmz4h2rq99n95sfsv4r1ldfmy-vendor-cargo-deps.drv
  /nix/store/9rfqgc3w9kp3mgichg90crlgxjkd7pmn-source.drv
  /nix/store/6yif1qam0ka7y2n1x36v3842sn75c22c-tincd-deps-0.1.0.drv
  /nix/store/klmkq37d75wq3103ki23ygn2c8lkfcvs-tincd-test-0.1.0.drv