this derivation will be built:
  /nix/store/gqv80pc64vs1j5b2wnqj8m1a7zcjz7fl-treefmt-check.drv
building '/nix/store/gqv80pc64vs1j5b2wnqj8m1a7zcjz7fl-treefmt-check.drv'
treefmt-check> traversed 535 files
treefmt-check> emitted 363 files for processing
treefmt-check> formatted 363 files (0 changed) in 15.975s

upload niks3: ok