this derivation will be built:
  /nix/store/3hxhlk2i6jm72ib9d5nqigcfd96wq0is-treefmt-check.drv
bld4: building 3hxhlk2i6jm72ib9d5nqigcfd96wq0is-treefmt-check.drv
traversed 517 files
emitted 354 files for processing
formatted 354 files (0 changed) in 5.451s