this derivation will be built:
  /nix/store/b3py26z21z1w6hkjnhr87f2l54wp5qhb-treefmt-check.drv
building '/nix/store/b3py26z21z1w6hkjnhr87f2l54wp5qhb-treefmt-check.drv'
treefmt-check> traversed 554 files
treefmt-check> emitted 374 files for processing
treefmt-check> formatted 374 files (0 changed) in 28.842s

upload niks3: ok