this derivation will be built:
  /nix/store/iyi6m7dlz754b1y5bn2da7zq1w4ns09g-treefmt-check.drv
building '/nix/store/iyi6m7dlz754b1y5bn2da7zq1w4ns09g-treefmt-check.drv'
treefmt-check> treefmt v2.5.0traversed 1648 files
treefmt-check> emitted 424 files for processing
treefmt-check> formatted 424 files (0 changed) in 4.508s

upload niks3: ok