this derivation will be built: /nix/store/d4zz7y83myg7d60nra0kkzkzlr40z2m9-treefmt-check.drv building '/nix/store/d4zz7y83myg7d60nra0kkzkzlr40z2m9-treefmt-check.drv' treefmt-check> treefmt v2.4.0traversed 939 files treefmt-check> emitted 234 files for processing treefmt-check> formatted 234 files (0 changed) in 624ms