this derivation will be built:
  /nix/store/wv2b3qx6bz1k29iq38vim87xr6na67av-treefmt-check.drv
building '/nix/store/wv2b3qx6bz1k29iq38vim87xr6na67av-treefmt-check.drv'
treefmt-check> treefmt v2.4.0traversed 939 files
treefmt-check> emitted 234 files for processing
treefmt-check> formatted 234 files (0 changed) in 745ms