these 3 derivations will be built:
  /nix/store/jvihxgg6gbgrhj132y2zjsd85sxbhd2a-clan-cli-source.drv
  /nix/store/1kxymwhh19h5xjsdmjjqmjalyb28cd69-clan-cli.drv
  /nix/store/05cd5sdfdc4db83cwc946qzhp4mb3mda-nix-shell.drv