this derivation will be built:
  /nix/store/d4a9719iiwkhh0j9gxb3xh0qcx33p9jk-treefmt-check.drv
building '/nix/store/d4a9719iiwkhh0j9gxb3xh0qcx33p9jk-treefmt-check.drv'
building '/nix/store/d4a9719iiwkhh0j9gxb3xh0qcx33p9jk-treefmt-check.drv'
treefmt-check> treefmt v2.6.0traversed 538 files
treefmt-check> emitted 135 files for processing
treefmt-check> formatted 135 files (0 changed) in 252ms