these 3 derivations will be built:
  /nix/store/g5vcx6jjfgycriah8rnbc9hmzxh7jxjk-treefmt.toml.drv
  /nix/store/6v8sz2p6r2hf212n34x908zb5gbh8z3w-treefmt.drv
  /nix/store/g9952zq6vy3v0wzgjbi6zdjfz4dabk4g-treefmt-check.drv