this derivation will be built:
  /nix/store/f9y82hvgvinxmi7jmm838cfzh9smdh4g-treefmt-check.drv
building '/nix/store/f9y82hvgvinxmi7jmm838cfzh9smdh4g-treefmt-check.drv'
treefmt-check> treefmt v2.5.0traversed 45 files
treefmt-check> emitted 29 files for processing
treefmt-check> formatted 29 files (0 changed) in 40ms