this derivation will be built:
  /nix/store/6gi9x1fd1656zy04qvfxmqmxq3qdx6id-treefmt-check.drv
building '/nix/store/6gi9x1fd1656zy04qvfxmqmxq3qdx6id-treefmt-check.drv'
treefmt-check> treefmt v2.5.0traversed 2195 files
treefmt-check> emitted 515 files for processing
treefmt-check> formatted 515 files (0 changed) in 3.678s

upload niks3: ok