this derivation will be built:
  /nix/store/k8lvvwykjmxqh6indzxzy1m9x73a7xz4-treefmt-check.drv
building '/nix/store/k8lvvwykjmxqh6indzxzy1m9x73a7xz4-treefmt-check.drv'
treefmt-check> treefmt v2.5.0traversed 60 files
treefmt-check> emitted 41 files for processing
treefmt-check> formatted 41 files (0 changed) in 438ms