these 4 derivations will be built:
  /nix/store/3zjsh9jd4f19bvs4dj74qqfd8zpxg005-nil.drv
  /nix/store/7jmqgmy5hs3ld34z2as92axn6k5p3axj-treefmt.toml.drv
  /nix/store/q5arwjsq55azgrnyf10cbc0qxaqfx6p8-treefmt.drv
  /nix/store/5z12vv7qkjzq9qxv2rpdz0zvlxisfj5k-treefmt-check.drv