this derivation will be built:
  /nix/store/mm54k1sfrc4wwqpic4a3qp9b88xrypg9-treefmt-check.drv
building '/nix/store/mm54k1sfrc4wwqpic4a3qp9b88xrypg9-treefmt-check.drv'
treefmt-check> treefmt v2.5.0traversed 23 files
treefmt-check> emitted 11 files for processing
treefmt-check> formatted 11 files (0 changed) in 219ms