these 4 derivations will be built:
  /nix/store/sgdgak720q7w9dq8akz26d1aqq02qx7d-clan-runtime.drv
  /nix/store/qwz62nn6qmkrqp77qs9bvkjvk94pr0lz-clan-cli-source.drv
  /nix/store/b4qcvz21d3mpd54np8rcyvic10xznpgc-clan-cli.drv
  /nix/store/x68bnjvh6qvfawv24kbx0fqkd03mks5y-nix-shell.drv