this derivation will be built:
  /nix/store/cs6xpyipw141r4zl1iwabicm1w7f8xi6-treefmt-check.drv
building '/nix/store/cs6xpyipw141r4zl1iwabicm1w7f8xi6-treefmt-check.drv'
treefmt-check> traversed 526 files
treefmt-check> emitted 359 files for processing
treefmt-check> formatted 359 files (0 changed) in 4.715s

upload niks3: ok