this derivation will be built:
  /nix/store/3kn4651d8jinw0lb53n5y5wmzj3c2z46-treefmt-check.drv
building '/nix/store/3kn4651d8jinw0lb53n5y5wmzj3c2z46-treefmt-check.drv'
treefmt-check> traversed 519 files
treefmt-check> emitted 355 files for processing
treefmt-check> formatted 355 files (0 changed) in 13.421s

upload niks3: ok