this derivation will be built:
  /nix/store/s6mp11fw7kixyvclggyar61yki1g8kn0-treefmt-check.drv
building '/nix/store/s6mp11fw7kixyvclggyar61yki1g8kn0-treefmt-check.drv'
treefmt-check> treefmt v2.4.0traversed 942 files
treefmt-check> emitted 236 files for processing
treefmt-check> formatted 236 files (0 changed) in 620ms