this derivation will be built:
  /nix/store/hh9g2s6yrqxici29zaxw0cyg4fim9kr1-treefmt-check.drv
building '/nix/store/hh9g2s6yrqxici29zaxw0cyg4fim9kr1-treefmt-check.drv'
treefmt-check> traversed 554 files
treefmt-check> emitted 374 files for processing
treefmt-check> formatted 374 files (0 changed) in 19.32s

upload niks3: ok