src/mongo/db/repl/oplog_fetcher.cpp: In function 'mongo::StatusWith<boost::optional<mongo::rpc::OplogQueryMetadata> > mongo::repl::{anonymous}::parseOplogQueryMetadata(mongo::Fetcher::QueryResponse)':
src/mongo/db/repl/oplog_fetcher.cpp:248:93: error: no matching function for call to 'make_optional<mongo::rpc::OplogQueryMetadata>(mongo::rpc::OplogQueryMetadata&)'
         oqMetadata = boost::make_optional<rpc::OplogQueryMetadata>(metadataResult.getValue());
                                                                                             ^
In file included from /usr/include/boost/optional.hpp:15:0,
                 from src/mongo/base/status_with.h:30,
                 from src/mongo/db/repl/oplog_fetcher.h:34,
                 from src/mongo/db/repl/oplog_fetcher.cpp:33:
/usr/include/boost/optional/optional.hpp:1367:56: note: candidate: template<class T> boost::optional<typename boost::decay<T>::type> boost::make_optional(T&&)
 optional<BOOST_DEDUCED_TYPENAME boost::decay<T>::type> make_optional ( T && v  )
                                                        ^~~~~~~~~~~~~
/usr/include/boost/optional/optional.hpp:1367:56: note:   template argument deduction/substitution failed:
src/mongo/db/repl/oplog_fetcher.cpp:248:91: note:   cannot convert 'metadataResult.mongo::StatusWith<mongo::rpc::OplogQueryMetadata>::getValue()' (type 'mongo::rpc::OplogQueryMetadata') to type 'mongo::rpc::OplogQueryMetadata&&'
         oqMetadata = boost::make_optional<rpc::OplogQueryMetadata>(metadataResult.getValue());
                                                                    ~~~~~~~~~~~~~~~~~~~~~~~^~
In file included from /usr/include/boost/optional.hpp:15:0,
                 from src/mongo/base/status_with.h:30,
                 from src/mongo/db/repl/oplog_fetcher.h:34,
                 from src/mongo/db/repl/oplog_fetcher.cpp:33:
/usr/include/boost/optional/optional.hpp:1375:56: note: candidate: template<class T> boost::optional<typename boost::decay<T>::type> boost::make_optional(bool, T&&)
 optional<BOOST_DEDUCED_TYPENAME boost::decay<T>::type> make_optional ( bool cond, T && v )
                                                        ^~~~~~~~~~~~~
/usr/include/boost/optional/optional.hpp:1375:56: note:   template argument deduction/substitution failed:
src/mongo/db/repl/oplog_fetcher.cpp:248:93: note:   candidate expects 2 arguments, 1 provided
         oqMetadata = boost::make_optional<rpc::OplogQueryMetadata>(metadataResult.getValue());
                                                                                             ^
scons: *** [build/opt/mongo/db/repl/oplog_fetcher.o] Error 1
scons: building terminated because of errors.
build/opt/mongo/db/repl/oplog_fetcher.o failed: Error 1