this derivation will be built:
  /nix/store/ihaw8qzdkn6s8ggxyy4vx5fr2akbln84-treefmt-check.drv
building '/nix/store/ihaw8qzdkn6s8ggxyy4vx5fr2akbln84-treefmt-check.drv'
treefmt-check> treefmt v2.5.0traversed 70 files
treefmt-check> emitted 30 files for processing
treefmt-check> formatted 30 files (0 changed) in 178ms