this derivation will be built:
  /nix/store/s3b7sd9fypxsdn4fn673dzy0bmiaslmf-treefmt-check.drv
building '/nix/store/s3b7sd9fypxsdn4fn673dzy0bmiaslmf-treefmt-check.drv'
treefmt-check> treefmt v2.6.0traversed 1956 files
treefmt-check> emitted 531 files for processing
treefmt-check> formatted 531 files (0 changed) in 2.69s

upload niks3: ok