this derivation will be built:
  /nix/store/k6ss9cxjx17hsnyaxypsxfxh5iz7isx1-treefmt-check.drv
building '/nix/store/k6ss9cxjx17hsnyaxypsxfxh5iz7isx1-treefmt-check.drv'
treefmt-check> traversed 535 files
treefmt-check> emitted 363 files for processing
treefmt-check> formatted 363 files (0 changed) in 2.324s

upload niks3: ok