this derivation will be built:
  /nix/store/6p99bj96kmcd9sz461sh09xffzhypg0i-treefmt-check.drv
building '/nix/store/6p99bj96kmcd9sz461sh09xffzhypg0i-treefmt-check.drv'
treefmt-check> treefmt v2.4.0traversed 925 files
treefmt-check> emitted 231 files for processing
treefmt-check> formatted 231 files (0 changed) in 569ms