this derivation will be built:
  /nix/store/sa6hz3jmhn3cknv5hzqprm1wvrn9jmh3-treefmt-check.drv
building '/nix/store/sa6hz3jmhn3cknv5hzqprm1wvrn9jmh3-treefmt-check.drv'
treefmt-check> traversed 554 files
treefmt-check> emitted 375 files for processing
treefmt-check> formatted 375 files (0 changed) in 12.331s

upload niks3: ok