Uncaught exception
If the exception is ever thrown, the program will crash. A C++ exception is thrown but never caught
/src/mongo/transport/asio/asio_transport_layer.cpp:188: UNCAUGHT_EXCEPT 173634 An exception of type "asio::system_error const" is thrown but the exception specification "noexcept" doesn't allow it to be thrown. This will result in a call to terminate().