these 4 derivations will be built:
  /nix/store/xm2ma0kbyxia4ykl0pk2c2aw145ihdc7-Cargo.toml.drv
  /nix/store/g2fg4ypncb6airipfqiwny553p9sv1h4-source.drv
  /nix/store/zz75xp5mjh5siy49pchjb893phxhk88i-tincd-deps-0.1.0.drv
  /nix/store/f52kjd9x7wv4krn5njgd1x7awvq831ww-tincd-0.1.0.drv