these 4 derivations will be built:
  /nix/store/739f7iqqb2rydnabnbrmdlyx4cylgwvp-closure-info.drv
  /nix/store/x07qwq3mzwpqwyf3ldxkwfb24cdq6rw0-clan-cli-source.drv
  /nix/store/r38jfwi9dfd4jn8gsxnjkacyvsld82l6-clan-cli.drv
  /nix/store/yz48w3cf2nlnanr5sqyn09px73rfy87g-check-vars.drv