this derivation will be built:
  /nix/store/6zzgyhadr8xyqzznj7w3fi6mdi95rljj-treefmt-check.drv
bld4: building 6zzgyhadr8xyqzznj7w3fi6mdi95rljj-treefmt-check.drv
traversed 517 files
emitted 354 files for processing
formatted 354 files (0 changed) in 9.887s