these 3 derivations will be built:
  /nix/store/hj98rv4fc9avf1ywzrmj7vxdlbi0llw4-treefmt.toml.drv
  /nix/store/i4vp3c51fck7l76ds8dc7rblpgg1bhkz-treefmt.drv
  /nix/store/7g8cyf6kvkwipnnnrlwr8sg8galn9c7w-treefmt-check.drv