this derivation will be built:
  /nix/store/nixkbz7hm9h0afp77prmh9phg2fm7dl3-treefmt-check.drv
building '/nix/store/nixkbz7hm9h0afp77prmh9phg2fm7dl3-treefmt-check.drv'
treefmt-check> traversed 526 files
treefmt-check> emitted 359 files for processing
treefmt-check> formatted 359 files (0 changed) in 19.92s

upload niks3: ok