src/mongo/client/dbclient.cpp:336:16: error: moving a temporary object prevents copy elision [-Werror,-Wpessimizing-move]
        info = std::move(commandReply->getCommandReply().getOwned());
               ^
src/mongo/client/dbclient.cpp:336:16: note: remove std::move call here
        info = std::move(commandReply->getCommandReply().getOwned());
               ^~~~~~~~~~                                          ~

src/mongo/rpc/legacy_reply_builder.cpp:97:16: error: moving a local object in a return statement prevents copy elision [-Werror,-Wpessimizing-move]
        return std::move(message);
               ^
src/mongo/rpc/legacy_reply_builder.cpp:97:16: note: remove std::move call here
        return std::move(message);
               ^~~~~~~~~~       ~

src/mongo/rpc/metadata.cpp:54:57: error: moving a temporary object prevents copy elision [-Werror,-Wpessimizing-move]
        return std::make_tuple(std::move(legacyCmdObj), std::move(metadataBob.obj()));
                                                        ^
src/mongo/rpc/metadata.cpp:54:57: note: remove std::move call here
        return std::make_tuple(std::move(legacyCmdObj), std::move(metadataBob.obj()));

src/third_party/s2/base/logging.cc:33:51: error: moving a temporary object prevents copy elision [-Werror,-Wpessimizing-move]
LogMessageInfo::LogMessageInfo() : LogMessageBase(std::move(mongo::log())) { }
                                                  ^
src/third_party/s2/base/logging.cc:33:51: note: remove std::move call here
LogMessageInfo::LogMessageInfo() : LogMessageBase(std::move(mongo::log())) { }

src/mongo/util/decoration_registry.h:66:21: error: moving a temporary object prevents copy elision [-Werror,-Wpessimizing-move]
                    std::move(declareDecoration(sizeof(T),
                    ^
src/mongo/util/decorable.h:105:49: note: in instantiation of function template specialization 'mongo::DecorationRegistry::declareDecoration<std::unique_ptr<mongo::AuthenticationSession, std::default_delete<mongo::AuthenticationSession> > >' requested here
            return Decoration<T>(getRegistry()->declareDecoration<T>());
                                                ^
src/mongo/db/auth/auth_decorations.cpp:63:22: note: in instantiation of function template specialization 'mongo::Decorable<mongo::ClientBasic>::declareDecoration<std::unique_ptr<mongo::AuthenticationSession, std::default_delete<mongo::AuthenticationSession> > >'
      requested here
        ClientBasic::declareDecoration<std::unique_ptr<AuthenticationSession>>();
                     ^
src/mongo/util/decoration_registry.h:66:21: note: remove std::move call here
                    std::move(declareDecoration(sizeof(T),
                    ^~~~~~~~~~
src/mongo/util/decoration_registry.h:66:21: error: moving a temporary object prevents copy elision [-Werror,-Wpessimizing-move]
                    std::move(declareDecoration(sizeof(T),
                    ^
src/mongo/util/decorable.h:105:49: note: in instantiation of function template specialization 'mongo::DecorationRegistry::declareDecoration<std::unique_ptr<mongo::AuthorizationManager, std::default_delete<mongo::AuthorizationManager> > >' requested here
            return Decoration<T>(getRegistry()->declareDecoration<T>());
                                                ^
src/mongo/db/auth/auth_decorations.cpp:66:25: note: in instantiation of function template specialization 'mongo::Decorable<mongo::ServiceContext>::declareDecoration<std::unique_ptr<mongo::AuthorizationManager, std::default_delete<mongo::AuthorizationManager> > >'
      requested here
        ServiceContext::declareDecoration<std::unique_ptr<AuthorizationManager>>();
                        ^
src/mongo/util/decoration_registry.h:66:21: note: remove std::move call here
                    std::move(declareDecoration(sizeof(T),
                    ^~~~~~~~~~
src/mongo/util/decoration_registry.h:66:21: error: moving a temporary object prevents copy elision [-Werror,-Wpessimizing-move]
                    std::move(declareDecoration(sizeof(T),
                    ^
src/mongo/util/decorable.h:105:49: note: in instantiation of function template specialization 'mongo::DecorationRegistry::declareDecoration<std::unique_ptr<mongo::AuthorizationSession, std::default_delete<mongo::AuthorizationSession> > >' requested here
            return Decoration<T>(getRegistry()->declareDecoration<T>());
                                                ^
src/mongo/db/auth/auth_decorations.cpp:69:22: note: in instantiation of function template specialization 'mongo::Decorable<mongo::ClientBasic>::declareDecoration<std::unique_ptr<mongo::AuthorizationSession, std::default_delete<mongo::AuthorizationSession> > >' requested
      here
        ClientBasic::declareDecoration<std::unique_ptr<AuthorizationSession>>();
                     ^
src/mongo/util/decoration_registry.h:66:21: note: remove std::move call here
                    std::move(declareDecoration(sizeof(T),
                    ^~~~~~~~~~

src/mongo/s/balance.cpp:573:40: error: moving a temporary object prevents copy elision [-Werror,-Wpessimizing-move]
                        writeConcern = std::move(balancerConfig.getWriteConcern());
                                       ^
src/mongo/s/balance.cpp:573:40: note: remove std::move call here
                        writeConcern = std::move(balancerConfig.getWriteConcern());