Capture this instead of all references in scope for call to std::visit to route CoordinatorWorker messages

src/coordinator/coordinator_worker.hpp

@@ -142,7 +142,7 @@ class CoordinatorWorker {
       Message message = queue_.Pop();
 
       const bool should_continue =
-          std::visit([&](auto &&msg) { return Process(std::forward<decltype(msg)>(msg)); }, std::move(message));
+          std::visit([this](auto &&msg) { return Process(std::forward<decltype(msg)>(msg)); }, std::move(message));
 
       if (!should_continue) {
         return;