this derivation will be built:
  /nix/store/b9gqplch1h9x77q9n2q86wp21mwv4qxc-treefmt-check.drv
building '/nix/store/b9gqplch1h9x77q9n2q86wp21mwv4qxc-treefmt-check.drv'
treefmt-check> traversed 549 files
treefmt-check> emitted 372 files for processing
treefmt-check> formatted 372 files (0 changed) in 3.732s

upload niks3: ok