this derivation will be built:
  /nix/store/g32ii6qbip3bf3mg2dg1v9h5aif0r8j3-treefmt-check.drv
building '/nix/store/g32ii6qbip3bf3mg2dg1v9h5aif0r8j3-treefmt-check.drv'
treefmt-check> traversed 550 files
treefmt-check> emitted 372 files for processing
treefmt-check> formatted 372 files (0 changed) in 2.949s

upload niks3: ok