warning: unknown setting 'eval-cores'
warning: unknown setting 'lazy-trees'
this derivation will be built:
  /nix/store/lqwy5v60zf07d3b9y40g65xwmparn5wm-formatting.drv
building '/nix/store/lqwy5v60zf07d3b9y40g65xwmparn5wm-formatting.drv'