this derivation will be built:
  /nix/store/y19vc0l8pc9671dw24f702bk34ax6nz9-treefmt-check.drv
building '/nix/store/y19vc0l8pc9671dw24f702bk34ax6nz9-treefmt-check.drv'
treefmt-check> treefmt v2.6.0traversed 2018 files
treefmt-check> emitted 556 files for processing
treefmt-check> formatted 556 files (0 changed) in 3.144s

upload niks3: ok