these 3 derivations will be built:
  /nix/store/9n4bv889gaqrndz4j7nxkcq2wm244idg-treefmt.toml.drv
  /nix/store/mz7d7ck757q62xxxlqg0ha8mlngj5cbx-treefmt.drv
  /nix/store/f3npghx9ldycfdsnw4sfzdzsvxfk7pyn-treefmt-check.drv