these 4 derivations will be built:
  /nix/store/3zjsh9jd4f19bvs4dj74qqfd8zpxg005-nil.drv
  /nix/store/7jmqgmy5hs3ld34z2as92axn6k5p3axj-treefmt.toml.drv
  /nix/store/zslv9pg0j274sq8zk4f7jwr7wi2nc5sa-treefmt.drv
  /nix/store/6vknwb2rm007358i5l9g8226ygxm3gpr-treefmt-check.drv