this derivation will be built:
  /nix/store/slcgaf27jx781a6vah3gz1pg1rpjl6z4-treefmt-check.drv
building '/nix/store/slcgaf27jx781a6vah3gz1pg1rpjl6z4-treefmt-check.drv'
treefmt-check> traversed 549 files
treefmt-check> emitted 372 files for processing
treefmt-check> formatted 372 files (0 changed) in 13.778s

upload niks3: ok