this derivation will be built:
  /nix/store/y6xnbxrcx5wllrbdp7h2w27zyrgaw1dg-treefmt-check.drv
building '/nix/store/y6xnbxrcx5wllrbdp7h2w27zyrgaw1dg-treefmt-check.drv'
treefmt-check> treefmt v2.5.0traversed 1658 files
treefmt-check> emitted 428 files for processing
treefmt-check> formatted 428 files (0 changed) in 3.701s

upload niks3: ok