these 3 derivations will be built:
  /nix/store/p7hkzzzz1h6lypnql7qyx8k6hckrnibd-treefmt.toml.drv
  /nix/store/6mrrv9g3myhydfza16ysx4i0bbyc4rng-treefmt.drv
  /nix/store/j1jh1mpdxjk9yap9balajlz4gx6v41j3-treefmt-check.drv