this derivation will be built:
  /nix/store/jy51nnc1x0ldsq8hbl15q7pdxy914wm7-treefmt-check.drv
building '/nix/store/jy51nnc1x0ldsq8hbl15q7pdxy914wm7-treefmt-check.drv'
treefmt-check> traversed 517 files
treefmt-check> emitted 354 files for processing
treefmt-check> formatted 354 files (0 changed) in 3.374s

upload niks3: ok