this derivation will be built:
  /nix/store/k5l08vfkmfqz9xmrr8nx9x27r6my8h3z-treefmt-check.drv
building '/nix/store/k5l08vfkmfqz9xmrr8nx9x27r6my8h3z-treefmt-check.drv'
treefmt-check> traversed 526 files
treefmt-check> emitted 359 files for processing
treefmt-check> formatted 359 files (0 changed) in 12.649s

upload niks3: ok