this derivation will be built:
  /nix/store/j7hsayhn4h4g1d4s8pn2ar6w80irl4h7-treefmt-check.drv
building '/nix/store/j7hsayhn4h4g1d4s8pn2ar6w80irl4h7-treefmt-check.drv'
treefmt-check> treefmt v2.4.0traversed 935 files
treefmt-check> emitted 233 files for processing
treefmt-check> formatted 233 files (0 changed) in 577ms