these 3 derivations will be built:
  /nix/store/ja4rngsr2zp28r8d7xl9j5wz0lijpfba-treefmt.toml.drv
  /nix/store/dlhb2lkslfx4l6g1ibs194xhhj9vwg91-treefmt.drv
  /nix/store/dbyx2jmapsrwxbrfzalgk9sfng9gv8fn-treefmt-check.drv