this derivation will be built:
  /nix/store/96z4vd5whv2l5kl08wqf31bhz9vhr7zs-treefmt-check.drv
building '/nix/store/96z4vd5whv2l5kl08wqf31bhz9vhr7zs-treefmt-check.drv'
treefmt-check> treefmt v2.6.0traversed 45 files
treefmt-check> emitted 30 files for processing
treefmt-check> formatted 30 files (0 changed) in 170ms