these 3 derivations will be built:
  /nix/store/qs3lfbyn5prcs8kd2djmxgzkbkwphlyr-treefmt.toml.drv
  /nix/store/hqc9sf388cwjhv19ynn6dh5m0hbxwvh9-treefmt.drv
  /nix/store/b203q5a3ljbnyx4pk5nmpvgphadgfkp0-treefmt-check.drv