message: warn instead of fail when unable to parse doc site
diff: @@ -1675,7 +1675,7 @@ fn check_object_doc_url(object: &str) -> Option<String> {
  fs::write(&cache_file, text.as_bytes()).unwrap();
  return Some(doc_url);
  } else {
  - panic!("fatal: documentation response didn't match the expected format.");
  + eprintln!("warning: documentation response at {} didn't match the expected format.", doc_url);
  }
  }
  }
  