this derivation will be built:
  /nix/store/j866c3whg9hiag2sv9p7kxk2kfyiv0y1-treefmt-check.drv
building '/nix/store/j866c3whg9hiag2sv9p7kxk2kfyiv0y1-treefmt-check.drv'
treefmt-check> traversed 535 files
treefmt-check> emitted 363 files for processing
treefmt-check> formatted 363 files (0 changed) in 17.299s

upload niks3: ok