this derivation will be built:
  /nix/store/ih3kv6xrs40npx1fkqig3cj6d67dm8hf-treefmt-check.drv
building '/nix/store/ih3kv6xrs40npx1fkqig3cj6d67dm8hf-treefmt-check.drv'
treefmt-check> treefmt v2.6.0traversed 1968 files
treefmt-check> emitted 531 files for processing
treefmt-check> formatted 531 files (0 changed) in 2.884s

upload niks3: ok