this derivation will be built:
  /nix/store/8in2z7n6m0ll00xywn8mvrh2bm6jd5na-treefmt-check.drv
building '/nix/store/8in2z7n6m0ll00xywn8mvrh2bm6jd5na-treefmt-check.drv'
treefmt-check> traversed 554 files
treefmt-check> emitted 374 files for processing
treefmt-check> formatted 374 files (0 changed) in 3.223s

upload niks3: ok