this derivation will be built:
  /nix/store/l2gal9zphy3jr23hbn815bknx4rss587-treefmt-check.drv
building '/nix/store/l2gal9zphy3jr23hbn815bknx4rss587-treefmt-check.drv'
treefmt-check> treefmt v2.4.0traversed 922 files
treefmt-check> emitted 229 files for processing
treefmt-check> formatted 229 files (0 changed) in 588ms