rocksdb (mongo-rocks) compilation failure

In file included from src/mongo/db/modules/rocksdb/src/rocks_record_store.h:42:0,

                 from src/mongo/db/modules/rocksdb/src/rocks_record_store.cpp:34:

src/mongo/db/storage/record_store.h:374:34: error: 'virtual mongo::StatusWith<mongo::RecordId> mongo::RecordStore::insertRecord(mongo::OperationContext*, const char*, int, mongo::Timestamp, bool)' was hidden [-Werror=overloaded-virtual]

     virtual StatusWith<RecordId> insertRecord(OperationContext* opCtx,

                                  ^

In file included from src/mongo/db/modules/rocksdb/src/rocks_record_store.cpp:34:0:

src/mongo/db/modules/rocksdb/src/rocks_record_store.h:139:38: error:   by 'virtual mongo::StatusWith<mongo::RecordId> mongo::RocksRecordStore::insertRecord(mongo::OperationContext*, const char*, int, bool)' [-Werror=overloaded-virtual]

         virtual StatusWith<RecordId> insertRecord( OperationContext* opCtx,

                                      ^

In file included from src/mongo/db/modules/rocksdb/src/rocks_record_store.h:42:0,

                 from src/mongo/db/modules/rocksdb/src/rocks_record_store.cpp:34:

src/mongo/db/storage/record_store.h:408:20: error: 'virtual mongo::Status mongo::RecordStore::insertRecordsWithDocWriter(mongo::OperationContext*, const mongo::DocWriter* const*, const mongo::Timestamp*, size_t, mongo::RecordId*)' was hidden [-Werror=overloaded-virtual]

     virtual Status insertRecordsWithDocWriter(OperationContext* opCtx,

                    ^

In file included from src/mongo/db/modules/rocksdb/src/rocks_record_store.cpp:34:0:

src/mongo/db/modules/rocksdb/src/rocks_record_store.h:144:24: error:   by 'virtual mongo::Status mongo::RocksRecordStore::insertRecordsWithDocWriter(mongo::OperationContext*, const mongo::DocWriter* const*, size_t, mongo::RecordId*)' [-Werror=overloaded-virtual]

         virtual Status insertRecordsWithDocWriter(OperationContext* opCtx,

                        ^