these 3 derivations will be built:
  /nix/store/vfgygnhvlc2lcm46f9jy6xki6ipwy9ms-treefmt.toml.drv
  /nix/store/bf426g8nvgs1ji9yh5xbkcqd493shi5x-treefmt.drv
  /nix/store/j2b61l84jxcr6c0fvj1kdkawcg9gi74q-treefmt-check.drv