Using a moved object
Using a moved object may lead to an unexpected/undefined behavior. An object is used after it's moved.
/src/mongo/db/query/query_solution.cpp:634: USE_AFTER_MOVE 123168 "index" is moved (indicated by "std::move(index)").
/src/mongo/db/query/query_solution.cpp:637: USE_AFTER_MOVE 123168 "index" is used after it has been already moved.