this derivation will be built:
  /nix/store/rwy7j2nlz8ihlg9mwlw0r8q9vrd745p3-treefmt-check.drv
building '/nix/store/rwy7j2nlz8ihlg9mwlw0r8q9vrd745p3-treefmt-check.drv'
treefmt-check> traversed 520 files
treefmt-check> emitted 356 files for processing
treefmt-check> formatted 356 files (0 changed) in 2.371s

upload niks3: ok