this derivation will be built:
  /nix/store/ix1l5537zr9k3wj0kwqgp8yzh0vcwblr-treefmt-check.drv
building '/nix/store/ix1l5537zr9k3wj0kwqgp8yzh0vcwblr-treefmt-check.drv'
treefmt-check> treefmt v2.6.0traversed 1967 files
treefmt-check> emitted 533 files for processing
treefmt-check> formatted 533 files (0 changed) in 2.889s

upload niks3: ok