these 4 derivations will be built:
  /nix/store/d485vzf7fxncfpq2kmnqsg6k2z75lj4f-source.drv
  /nix/store/ddlkdr3lkj7ksgfi5yizrbk58d6g5z61-vendor-cargo-deps.drv
  /nix/store/7jwdzcl4ccprn8zm4csb3bbf56dihx6g-tincd-deps-0.1.0.drv
  /nix/store/gkl5rjxgzk3pkrrgpl3zknx9qyqswhw0-tincd-0.1.0.drv