this derivation will be built:
  /nix/store/6f5z4p90qd1q13kny0q3f32hjyfng9mm-treefmt-check.drv
building '/nix/store/6f5z4p90qd1q13kny0q3f32hjyfng9mm-treefmt-check.drv'
treefmt-check> traversed 519 files
treefmt-check> emitted 355 files for processing
treefmt-check> formatted 355 files (0 changed) in 2.83s

upload niks3: ok