this derivation will be built:
  /nix/store/j3qqjcmy32d5y8rrsbigh6nx5np7garx-treefmt-check.drv
building '/nix/store/j3qqjcmy32d5y8rrsbigh6nx5np7garx-treefmt-check.drv'
treefmt-check> traversed 553 files
treefmt-check> emitted 374 files for processing
treefmt-check> formatted 374 files (0 changed) in 7.366s

upload niks3: ok