this derivation will be built:
  /nix/store/gz9vvncg8n1a2gkixp69j1rsfyxrf9r2-treefmt-check.drv
building '/nix/store/gz9vvncg8n1a2gkixp69j1rsfyxrf9r2-treefmt-check.drv'
treefmt-check> treefmt v2.6.0traversed 1955 files
treefmt-check> emitted 530 files for processing
treefmt-check> formatted 530 files (0 changed) in 2.716s

upload niks3: ok