Data race condition

The value of the shared data will be determined by the interleaving of thread execution. Thread shared data is accessed without holding an appropriate lock, possibly causing a race condition
/src/mongo/db/repl/rollback_checker.cpp:62: MISSING_LOCK 175076 Accessing "<anonymous>.this" without holding lock "mongo::repl::RollbackChecker._mutex". Elsewhere, "mongo::repl::RollbackChecker::checkForRollback(std::function<void (mongo::StatusWith<bool> const &)> const &)::[lambda(mongo::executor::TaskExecutor::RemoteCommandCallbackArgs const &) (instance 1)].this" is written to with "RollbackChecker._mutex" held 1 out of 1 times.