message: Warning in change stream tests
diff: @@ -40,7 +40,7 @@ template <typename T>
  bsoncxx::document::value doc(std::string key, T val) {
  bsoncxx::builder::basic::document out{};
  out.append(kvp(key, val));
  - return std::move(out.extract());
  + return out.extract();
  }
  // Generates lambda/interpose for change_stream_next
  