this derivation will be built:
  /nix/store/mf5mmnby8byvd9xmky02h7hbz9fk3nsr-treefmt-check.drv
building '/nix/store/mf5mmnby8byvd9xmky02h7hbz9fk3nsr-treefmt-check.drv'
treefmt-check> treefmt v2.4.0traversed 931 files
treefmt-check> emitted 232 files for processing
treefmt-check> formatted 232 files (0 changed) in 635ms