this derivation will be built:
  /nix/store/1x5zrw9x6i1ks77mlspw3sf8y8cnyrcw-treefmt-check.drv
building '/nix/store/1x5zrw9x6i1ks77mlspw3sf8y8cnyrcw-treefmt-check.drv'
treefmt-check> traversed 517 files
treefmt-check> emitted 354 files for processing
treefmt-check> formatted 354 files (0 changed) in 3.84s

upload niks3: ok