Uncaught exception

If the exception is ever thrown, the program will crash. A C++ exception is thrown but never caught
/data/mci/c85365eaa2083bcd0d4cb70cd7ee4685/bazel_cache/a97afe52cd9ebe41e9e1334ac4ba1428/execroot/_main_/src/mongo/db/query/optimizer/explain.cpp:122: UNCAUGHT_EXCEPT 172434 An exception of type "mongo::ExceptionFor<(mongo::ErrorCodes::Error)0>" is thrown but the exception specification "/implicit/noexcept" doesn't allow it to be thrown. This will result in a call to terminate().