this derivation will be built:
  /nix/store/1akr7xl21cxfr67l2ysgmrmx2cr0hdnn-treefmt-check.drv
building '/nix/store/1akr7xl21cxfr67l2ysgmrmx2cr0hdnn-treefmt-check.drv'
treefmt-check> treefmt v2.6.0traversed 2083 files
treefmt-check> emitted 556 files for processing
treefmt-check> formatted 556 files (0 changed) in 4.127s

upload niks3: ok