warning: unknown setting 'eval-cores'
warning: unknown setting 'lazy-trees'
this derivation will be built:
  /nix/store/6f3xym8q5zd8nrahvl4x6l4v23c7kggv-formatting.drv
building '/nix/store/6f3xym8q5zd8nrahvl4x6l4v23c7kggv-formatting.drv'