these 4 derivations will be built:
  /nix/store/8mdlz3srqp7iijangaa54yk0fr1xn1v1-closure-info.drv
  /nix/store/9p3mk1pvzrpmlg0dggra3qg96jwnb1v9-clan-cli-source.drv
  /nix/store/yjpglz1ykv7h3bfrblkxwrkkgbi75x3s-clan-cli.drv
  /nix/store/x723hg03smkvs9ddlfnqn66l5q9rzz6r-check-vars.drv