this derivation will be built:
  /nix/store/9d60134hrjbqaqy725w9m543yng9ih97-treefmt-check.drv
building '/nix/store/9d60134hrjbqaqy725w9m543yng9ih97-treefmt-check.drv'
treefmt-check> treefmt v2.5.0traversed 71 files
treefmt-check> emitted 31 files for processing
treefmt-check> formatted 31 files (0 changed) in 216ms