this derivation will be built:
  /nix/store/8krxm3sn6brrhzmn4f6qgwddxdgd1z1v-treefmt-check.drv
building '/nix/store/8krxm3sn6brrhzmn4f6qgwddxdgd1z1v-treefmt-check.drv'
treefmt-check> treefmt v2.4.0traversed 946 files
treefmt-check> emitted 239 files for processing
treefmt-check> formatted 239 files (0 changed) in 646ms