this derivation will be built:
  /nix/store/m49m6x2z0vcc2m7ym2qy8hi54f0c12cc-treefmt-check.drv
building '/nix/store/m49m6x2z0vcc2m7ym2qy8hi54f0c12cc-treefmt-check.drv'
treefmt-check> traversed 549 files
treefmt-check> emitted 371 files for processing
treefmt-check> formatted 371 files (0 changed) in 3.762s

upload niks3: ok