this derivation will be built:
  /nix/store/zsrcysdpi909y2926dp0qmr8q42hp63h-treefmt-check.drv
building '/nix/store/zsrcysdpi909y2926dp0qmr8q42hp63h-treefmt-check.drv'
treefmt-check> treefmt v2.5.0traversed 770 files
treefmt-check> emitted 471 files for processing
treefmt-check> formatted 471 files (0 changed) in 784ms