warning: unknown setting 'eval-cores'
warning: unknown setting 'lazy-trees'
this derivation will be built:
  /nix/store/w9vbqx68mgjhl312pzl09qvw2g9z6l2d-formatting.drv
building '/nix/store/w9vbqx68mgjhl312pzl09qvw2g9z6l2d-formatting.drv'