this derivation will be built:
  /nix/store/nazfvy3cdvz50d3ihxc2lw1x7q8ccjnl-treefmt-check.drv
building '/nix/store/nazfvy3cdvz50d3ihxc2lw1x7q8ccjnl-treefmt-check.drv'
treefmt-check> traversed 551 files
treefmt-check> emitted 372 files for processing
treefmt-check> formatted 372 files (0 changed) in 2.656s

upload niks3: ok