these 5 derivations will be built:
  /nix/store/n9k1g5ybbfyrfakaj39smdja97w68s53-clan-runtime.drv
  /nix/store/b59vgpig3whm9yjrnnlc57h5987q0wf2-clan-cli-source.drv
  /nix/store/2l8lv5h52szkvr8fdwa8ns8kk93a7mcb-clan-cli.drv
  /nix/store/g3i7di9j07ni5izapzpihwv9i7116wp7-closure-info.drv
  /nix/store/lvyj4mshgcg4aarvn28kqsljzyanrbay-check-vars.drv