this derivation will be built:
  /nix/store/0hzwzpyq9qz2amn34006xr9axhk2b1zm-treefmt-check.drv
building '/nix/store/0hzwzpyq9qz2amn34006xr9axhk2b1zm-treefmt-check.drv'
building '/nix/store/0hzwzpyq9qz2amn34006xr9axhk2b1zm-treefmt-check.drv'
treefmt-check> treefmt v2.6.0traversed 537 files
treefmt-check> emitted 135 files for processing
treefmt-check> formatted 135 files (0 changed) in 378ms