these 5 derivations will be built:
  /nix/store/jrmwgg46in0a79vzq76dgyqw6s4f8lwj-clan-runtime.drv
  /nix/store/qlflak8qc113wdvhnbb83lyiah75djjw-clan-cli-source.drv
  /nix/store/jnvkjfsy01g6mm7knb0hf0lrkfvd3jhh-clan-cli.drv
  /nix/store/wj8c4bslwgc6n24s81k4hs4rcbif68fa-closure-info.drv
  /nix/store/x9s4lx9i9g6wx9ry3s1aaaw7z70zz7hp-check-vars.drv