from src/mongo/db/exec/projection_exec_agg.cpp:36: src/mongo/db/matcher/expression_type.h: In member function 'virtual std::unique_ptr mongo::InternalSchemaBinDataSubTypeExpression::shallowClone() const': src/mongo/db/matcher/expression_type.h:196:25: warning: redundant move in return statement [-Wredundant-move] 196 | return std::move(expr); | ~~~~~~~~~^~~~~~ src/mongo/db/matcher/expression_type.h:196:25: note: remove 'std::move' call src/mongo/db/matcher/expression_type.h: In instantiation of 'std::unique_ptr mongo::TypeMatchExpressionBase::shallowClone() const [with T = mongo::InternalSchemaBinDataEncryptedTypeExpression]': src/mongo/db/matcher/expression_type.h:69:38: required from here src/mongo/db/matcher/expression_type.h:74:30: warning: redundant move in return statement [-Wredundant-move] 74 | return std::move(expr); | ^ src/mongo/db/matcher/expression_type.h:74:30: note: remove 'std::move' call src/mongo/db/matcher/expression_type.h: In instantiation of 'std::unique_ptr mongo::TypeMatchExpressionBase::shallowClone() const [with T = mongo::InternalSchemaTypeExpression]': src/mongo/db/matcher/expression_type.h:69:38: required from here src/mongo/db/matcher/expression_type.h:74:30: warning: redundant move in return statement [-Wredundant-move] src/mongo/db/matcher/expression_type.h:74:30: note: remove 'std::move' call src/mongo/db/matcher/expression_type.h: In instantiation of 'std::unique_ptr mongo::TypeMatchExpressionBase::shallowClone() const [with T = mongo::TypeMatchExpression]': src/mongo/db/matcher/expression_type.h:69:38: required from here src/mongo/db/matcher/expression_type.h:74:30: warning: redundant move in return statement [-Wredundant-move] src/mongo/db/matcher/expression_type.h:74:30: note: remove 'std::move' call /tmp/instance-0/output-1/host/bin/arm-linux-g++ -o build/opt/mongo/db/s/config/sharding_catalog_manager_chunk_operations.o -c -Woverloaded-virtual -Wpessimizing-move -Wredundant-move -Wno-maybe-uninitialized -fsized-deallocation -std=c++17 -fno-omit-frame-pointer -fno-strict-aliasing -ggdb -pthread -Wall -Wsign-compare -Wno-unknown-pragmas -Winvalid-pch -O2 -Wno-unused-local-typedefs -Wno-unused-function -Wno-deprecated-declarations -Wno-unused-const-variable -Wno-unused-but-set-variable -Wno-missing-braces -fstack-protector-strong -fno-builtin-memcmp -fPIE -DSAFEINT_USE_INTRINSICS=0 -DNDEBUG -D_XOPEN_SOURCE=700 -D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_FORTIFY_SOURCE=2 -DBOOST_SYSTEM_NO_DEPRECATED -DBOOST_MATH_NO_LONG_DOUBLE_MATH_FUNCTIONS -DBOOST_ENABLE_ASSERT_DEBUG_HANDLER -DABSL_FORCE_ALIGNED_ACCESS -Isrc/third_party/s2 -Isrc/third_party/SafeInt -Isrc/third_party/fmt/dist/include -Isrc/third_party/abseil-cpp-master/abseil-cpp -Ibuild/opt -Isrc src/mongo/db/s/config/sharding_catalog_manager_chunk_operations.cpp In file included from src/mongo/db/matcher/expression_text_base.h:32, from src/mongo/db/matcher/extensions_callback.h:33, from src/mongo/db/matcher/extensions_callback_noop.h:32, from src/mongo/db/query/canonical_query.h:37, from src/mongo/db/query/plan_cache.h:37, from src/mongo/db/catalog/collection_info_cache.h:33, from src/mongo/db/catalog/collection.h:42, from src/mongo/db/catalog_raii.h:33, from src/mongo/db/s/config/sharding_catalog_manager_chunk_operations.cpp:41: src/mongo/db/matcher/expression_leaf.h: In member function 'virtual std::unique_ptr mongo::EqualityMatchExpression::shallowClone() const': src/mongo/db/matcher/expression_leaf.h:199:25: warning: redundant move in return statement [-Wredundant-move] 199 | return std::move(e); | ~~~~~~~~~^~~ src/mongo/db/matcher/expression_leaf.h:199:25: note: remove 'std::move' call src/mongo/db/matcher/expression_leaf.h: In member function 'virtual std::unique_ptr mongo::LTEMatchExpression::shallowClone() const': src/mongo/db/matcher/expression_leaf.h:221:25: warning: redundant move in return statement [-Wredundant-move] 221 | return std::move(e); | ~~~~~~~~~^~~ src/mongo/db/matcher/expression_leaf.h:221:25: note: remove 'std::move' call src/mongo/db/matcher/expression_leaf.h: In member function 'virtual std::unique_ptr mongo::LTMatchExpression::shallowClone() const': src/mongo/db/matcher/expression_leaf.h:243:25: warning: redundant move in return statement [-Wredundant-move] 243 | return std::move(e); | ~~~~~~~~~^~~ src/mongo/db/matcher/expression_leaf.h:243:25: note: remove 'std::move' call src/mongo/db/matcher/expression_leaf.h: In member function 'virtual std::unique_ptr mongo::GTMatchExpression::shallowClone() const': src/mongo/db/matcher/expression_leaf.h:265:25: warning: redundant move in return statement [-Wredundant-move] 265 | return std::move(e); | ~~~~~~~~~^~~ src/mongo/db/matcher/expression_leaf.h:265:25: note: remove 'std::move' call src/mongo/db/matcher/expression_leaf.h: In member function 'virtual std::unique_ptr mongo::GTEMatchExpression::shallowClone() const': src/mongo/db/matcher/expression_leaf.h:287:25: warning: redundant move in return statement [-Wredundant-move] 287 | return std::move(e); | ~~~~~~~~~^~~ src/mongo/db/matcher/expression_leaf.h:287:25: note: remove 'std::move' call src/mongo/db/matcher/expression_leaf.h: In member function 'virtual std::unique_ptr mongo::RegexMatchExpression::shallowClone() const': src/mongo/db/matcher/expression_leaf.h:306:25: warning: redundant move in return statement [-Wredundant-move] 306 | return std::move(e); | ~~~~~~~~~^~~ src/mongo/db/matcher/expression_leaf.h:306:25: note: remove 'std::move' call src/mongo/db/matcher/expression_leaf.h: In member function 'virtual std::unique_ptr mongo::ModMatchExpression::shallowClone() const': src/mongo/db/matcher/expression_leaf.h:350:25: warning: redundant move in return statement [-Wredundant-move] 350 | return std::move(m); | ~~~~~~~~~^~~ src/mongo/db/matcher/expression_leaf.h:350:25: note: remove 'std::move' call src/mongo/db/matcher/expression_leaf.h: In member function 'virtual std::unique_ptr mongo::ExistsMatchExpression::shallowClone() const': src/mongo/db/matcher/expression_leaf.h:386:25: warning: redundant move in return statement [-Wredundant-move] 386 | return std::move(e); | ~~~~~~~~~^~~ src/mongo/db/matcher/expression_leaf.h:386:25: note: remove 'std::move' call src/mongo/db/matcher/expression_leaf.h: In member function 'virtual std::unique_ptr mongo::BitsAllSetMatchExpression::shallowClone() const': src/mongo/db/matcher/expression_leaf.h:570:25: warning: redundant move in return statement [-Wredundant-move] 570 | return std::move(bitTestMatchExpression); | ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~ src/mongo/db/matcher/expression_leaf.h:570:25: note: remove 'std::move' call src/mongo/db/matcher/expression_leaf.h: In member function 'virtual std::unique_ptr mongo::BitsAllClearMatchExpression::shallowClone() const': src/mongo/db/matcher/expression_leaf.h:591:25: warning: redundant move in return statement [-Wredundant-move] 591 | return std::move(bitTestMatchExpression); | ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~ src/mongo/db/matcher/expression_leaf.h:591:25: note: remove 'std::move' call src/mongo/db/matcher/expression_leaf.h: In member function 'virtual std::unique_ptr mongo::BitsAnySetMatchExpression::shallowClone() const': src/mongo/db/matcher/expression_leaf.h:612:25: warning: redundant move in return statement [-Wredundant-move] 612 | return std::move(bitTestMatchExpression); | ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~ src/mongo/db/matcher/expression_leaf.h:612:25: note: remove 'std::move' call src/mongo/db/matcher/expression_leaf.h: In member function 'virtual std::unique_ptr mongo::BitsAnyClearMatchExpression::shallowClone() const': src/mongo/db/matcher/expression_leaf.h:633:25: warning: redundant move in return statement [-Wredundant-move] 633 | return std::move(bitTestMatchExpression); | ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~ src/mongo/db/matcher/expression_leaf.h:633:25: note: remove 'std::move' call In file included from src/mongo/db/matcher/expression_parser.h:36, from src/mongo/db/query/parsed_projection.h:33, from src/mongo/db/query/canonical_query.h:39, from src/mongo/db/query/plan_cache.h:37, from src/mongo/db/catalog/collection_info_cache.h:33, from src/mongo/db/catalog/collection.h:42, from src/mongo/db/catalog_raii.h:33, from src/mongo/db/s/config/sharding_catalog_manager_chunk_operations.cpp:41: src/mongo/db/matcher/expression_tree.h: In member function 'virtual std::unique_ptr mongo::AndMatchExpression::shallowClone() const': src/mongo/db/matcher/expression_tree.h:125:25: warning: redundant move in return statement [-Wredundant-move] 125 | return std::move(self); | ~~~~~~~~~^~~~~~ src/mongo/db/matcher/expression_tree.h:125:25: note: remove 'std::move' call src/mongo/db/matcher/expression_tree.h: In member function 'virtual std::unique_ptr mongo::OrMatchExpression::shallowClone() const': src/mongo/db/matcher/expression_tree.h:154:25: warning: redundant move in return statement [-Wredundant-move] 154 | return std::move(self); | ~~~~~~~~~^~~~~~ src/mongo/db/matcher/expression_tree.h:154:25: note: remove 'std::move' call src/mongo/db/matcher/expression_tree.h: In member function 'virtual std::unique_ptr mongo::NorMatchExpression::shallowClone() const': src/mongo/db/matcher/expression_tree.h:183:25: warning: redundant move in return statement [-Wredundant-move] 183 | return std::move(self); | ~~~~~~~~~^~~~~~ src/mongo/db/matcher/expression_tree.h:183:25: note: remove 'std::move' call src/mongo/db/matcher/expression_tree.h: In member function 'virtual std::unique_ptr mongo::NotMatchExpression::shallowClone() const': src/mongo/db/matcher/expression_tree.h:201:25: warning: redundant move in return statement [-Wredundant-move] 201 | return std::move(self); | ~~~~~~~~~^~~~~~ src/mongo/db/matcher/expression_tree.h:201:25: note: remove 'std::move' call In file included from src/mongo/db/matcher/expression_parser.h:37, from src/mongo/db/query/parsed_projection.h:33, from src/mongo/db/query/canonical_query.h:39, from src/mongo/db/query/plan_cache.h:37, from src/mongo/db/catalog/collection_info_cache.h:33, from src/mongo/db/catalog/collection.h:42, from src/mongo/db/catalog_raii.h:33, from src/mongo/db/s/config/sharding_catalog_manager_chunk_operations.cpp:41: src/mongo/db/matcher/expression_type.h: In member function 'virtual std::unique_ptr mongo::InternalSchemaBinDataSubTypeExpression::shallowClone() const': src/mongo/db/matcher/expression_type.h:196:25: warning: redundant move in return statement [-Wredundant-move] 196 | return std::move(expr); | ~~~~~~~~~^~~~~~ src/mongo/db/matcher/expression_type.h:196:25: note: remove 'std::move' call In file included from src/mongo/db/pipeline/expression_context.h:41, from src/mongo/db/matcher/expression_with_placeholder.h:37, from src/mongo/db/matcher/expression_parser.h:38, from src/mongo/db/query/parsed_projection.h:33, from src/mongo/db/query/canonical_query.h:39, from src/mongo/db/query/plan_cache.h:37, from src/mongo/db/catalog/collection_info_cache.h:33, from src/mongo/db/catalog/collection.h:42, from src/mongo/db/catalog_raii.h:33, from src/mongo/db/s/config/sharding_catalog_manager_chunk_operations.cpp:41: src/mongo/db/pipeline/aggregation_request.h: In static member function 'static mongo::StatusWith > mongo::AggregationRequest::parsePipelineFromBSON(mongo::BSONElement)': src/mongo/db/pipeline/aggregation_request.h:90:25: warning: redundant move in return statement [-Wredundant-move] 90 | return std::move(pipeline); | ~~~~~~~~~^~~~~~~~~~ src/mongo/db/pipeline/aggregation_request.h:90:25: note: remove 'std::move' call In file included from src/mongo/db/matcher/expression_parser.h:37, from src/mongo/db/query/parsed_projection.h:33, from src/mongo/db/query/canonical_query.h:39, from src/mongo/db/query/plan_cache.h:37, from src/mongo/db/catalog/collection_info_cache.h:33, from src/mongo/db/catalog/collection.h:42, from src/mongo/db/catalog_raii.h:33, from src/mongo/db/s/config/sharding_catalog_manager_chunk_operations.cpp:41: src/mongo/db/matcher/expression_type.h: In instantiation of 'std::unique_ptr mongo::TypeMatchExpressionBase::shallowClone() const [with T = mongo::InternalSchemaBinDataEncryptedTypeExpression]': src/mongo/db/matcher/expression_type.h:69:38: required from here src/mongo/db/matcher/expression_type.h:74:30: warning: redundant move in return statement [-Wredundant-move] 74 | return std::move(expr); | ^ src/mongo/db/matcher/expression_type.h:74:30: note: remove 'std::move' call src/mongo/db/matcher/expression_type.h: In instantiation of 'std::unique_ptr mongo::TypeMatchExpressionBase::shallowClone() const [with T = mongo::InternalSchemaTypeExpression]': src/mongo/db/matcher/expression_type.h:69:38: required from here src/mongo/db/matcher/expression_type.h:74:30: warning: redundant move in return statement [-Wredundant-move] src/mongo/db/matcher/expression_type.h:74:30: note: remove 'std::move' call src/mongo/db/matcher/expression_type.h: In instantiation of 'std::unique_ptr mongo::TypeMatchExpressionBase::shallowClone() const [with T = mongo::TypeMatchExpression]': src/mongo/db/matcher/expression_type.h:69:38: required from here src/mongo/db/matcher/expression_type.h:74:30: warning: redundant move in return statement [-Wredundant-move] src/mongo/db/matcher/expression_type.h:74:30: note: remove 'std::move' call In file included from /tmp/instance-0/output-1/host/opt/ext-toolchain/arm-buildroot-linux-gnueabihf/include/c++/10.2.0/vector:72, from /tmp/instance-0/output-1/host/opt/ext-toolchain/arm-buildroot-linux-gnueabihf/include/c++/10.2.0/functional:62, from /tmp/instance-0/output-1/host/arm-buildroot-linux-gnueabihf/sysroot/usr/include/boost/utility/compare_pointees.hpp:15, from /tmp/instance-0/output-1/host/arm-buildroot-linux-gnueabihf/sysroot/usr/include/boost/optional/optional.hpp:55, from /tmp/instance-0/output-1/host/arm-buildroot-linux-gnueabihf/sysroot/usr/include/boost/optional.hpp:15, from src/mongo/base/status_with.h:32, from src/mongo/db/s/config/sharding_catalog_manager.h:32, from src/mongo/db/s/config/sharding_catalog_manager_chunk_operations.cpp:34: /tmp/instance-0/output-1/host/opt/ext-toolchain/arm-buildroot-linux-gnueabihf/include/c++/10.2.0/bits/vector.tcc: In member function 'void std::vector<_Tp, _Alloc>::_M_realloc_insert(std::vector<_Tp, _Alloc>::iterator, _Args&& ...) [with _Args = {const mongo::ChunkType&}; _Tp = mongo::ChunkType; _Alloc = std::allocator]': /tmp/instance-0/output-1/host/opt/ext-toolchain/arm-buildroot-linux-gnueabihf/include/c++/10.2.0/bits/vector.tcc:426:7: note: parameter passing for argument of type 'std::vector::iterator' changed in GCC 7.1 426 | vector<_Tp, _Alloc>:: | ^~~~~~~~~~~~~~~~~~~ In file included from /tmp/instance-0/output-1/host/opt/ext-toolchain/arm-buildroot-linux-gnueabihf/include/c++/10.2.0/vector:67, from /tmp/instance-0/output-1/host/opt/ext-toolchain/arm-buildroot-linux-gnueabihf/include/c++/10.2.0/functional:62, from /tmp/instance-0/output-1/host/arm-buildroot-linux-gnueabihf/sysroot/usr/include/boost/utility/compare_pointees.hpp:15, from /tmp/instance-0/output-1/host/arm-buildroot-linux-gnueabihf/sysroot/usr/include/boost/optional/optional.hpp:55, from /tmp/instance-0/output-1/host/arm-buildroot-linux-gnueabihf/sysroot/usr/include/boost/optional.hpp:15, from src/mongo/base/status_with.h:32, from src/mongo/db/s/config/sharding_catalog_manager.h:32, from src/mongo/db/s/config/sharding_catalog_manager_chunk_operations.cpp:34: /tmp/instance-0/output-1/host/opt/ext-toolchain/arm-buildroot-linux-gnueabihf/include/c++/10.2.0/bits/stl_vector.h: In member function 'mongo::Status mongo::ShardingCatalogManager::commitChunkMerge(mongo::OperationContext*, const mongo::NamespaceString&, const mongo::OID&, const std::vector&, const string&, const boost::optional&)': /tmp/instance-0/output-1/host/opt/ext-toolchain/arm-buildroot-linux-gnueabihf/include/c++/10.2.0/bits/stl_vector.h:1198:21: note: parameter passing for argument of type '__gnu_cxx::__normal_iterator >' changed in GCC 7.1 1198 | _M_realloc_insert(end(), __x); | ~~~~~~~~~~~~~~~~~^~~~~~~~~~~~ In file included from /tmp/instance-0/output-1/host/opt/ext-toolchain/arm-buildroot-linux-gnueabihf/include/c++/10.2.0/vector:72, from /tmp/instance-0/output-1/host/opt/ext-toolchain/arm-buildroot-linux-gnueabihf/include/c++/10.2.0/functional:62, from /tmp/instance-0/output-1/host/arm-buildroot-linux-gnueabihf/sysroot/usr/include/boost/utility/compare_pointees.hpp:15, from /tmp/instance-0/output-1/host/arm-buildroot-linux-gnueabihf/sysroot/usr/include/boost/optional/optional.hpp:55, from /tmp/instance-0/output-1/host/arm-buildroot-linux-gnueabihf/sysroot/usr/include/boost/optional.hpp:15, from src/mongo/base/status_with.h:32, from src/mongo/db/s/config/sharding_catalog_manager.h:32, from src/mongo/db/s/config/sharding_catalog_manager_chunk_operations.cpp:34: /tmp/instance-0/output-1/host/opt/ext-toolchain/arm-buildroot-linux-gnueabihf/include/c++/10.2.0/bits/vector.tcc: In member function 'void std::vector<_Tp, _Alloc>::_M_realloc_insert(std::vector<_Tp, _Alloc>::iterator, _Args&& ...) [with _Args = {mongo::ChunkType}; _Tp = mongo::ChunkType; _Alloc = std::allocator]': /tmp/instance-0/output-1/host/opt/ext-toolchain/arm-buildroot-linux-gnueabihf/include/c++/10.2.0/bits/vector.tcc:426:7: note: parameter passing for argument of type 'std::vector::iterator' changed in GCC 7.1 426 | vector<_Tp, _Alloc>:: | ^~~~~~~~~~~~~~~~~~~ /tmp/instance-0/output-1/host/opt/ext-toolchain/arm-buildroot-linux-gnueabihf/include/c++/10.2.0/bits/vector.tcc: In member function 'mongo::Status mongo::ShardingCatalogManager::commitChunkSplit(mongo::OperationContext*, const mongo::NamespaceString&, const mongo::OID&, const mongo::ChunkRange&, const std::vector&, const string&)': /tmp/instance-0/output-1/host/opt/ext-toolchain/arm-buildroot-linux-gnueabihf/include/c++/10.2.0/bits/vector.tcc:121:21: note: parameter passing for argument of type '__gnu_cxx::__normal_iterator >' changed in GCC 7.1 121 | _M_realloc_insert(end(), std::forward<_Args>(__args)...); | ~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ /tmp/instance-0/output-1/host/bin/arm-linux-g++ -o build/opt/mongo/db/concurrency/flow_control_ticketholder.o -c -Woverloaded-virtual -Wpessimizing-move -Wredundant-move -Wno-maybe-uninitialized -fsized-deallocation -std=c++17 -fno-omit-frame-pointer -fno-strict-aliasing -ggdb -pthread -Wall -Wsign-compare -Wno-unknown-pragmas -Winvalid-pch -O2 -Wno-unused-local-typedefs -Wno-unused-function -Wno-deprecated-declarations -Wno-unused-const-variable -Wno-unused-but-set-variable -Wno-missing-braces -fstack-protector-strong -fno-builtin-memcmp -fPIE -DSAFEINT_USE_INTRINSICS=0 -DNDEBUG -D_XOPEN_SOURCE=700 -D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_FORTIFY_SOURCE=2 -DBOOST_SYSTEM_NO_DEPRECATED -DBOOST_MATH_NO_LONG_DOUBLE_MATH_FUNCTIONS -DBOOST_ENABLE_ASSERT_DEBUG_HANDLER -DABSL_FORCE_ALIGNED_ACCESS -Isrc/third_party/s2 -Isrc/third_party/SafeInt -Isrc/third_party/fmt/dist/include -Isrc/third_party/abseil-cpp-master/abseil-cpp -Ibuild/opt -Isrc src/mongo/db/concurrency/flow_control_ticketholder.cpp ar rcsTD build/opt/mongo/db/concurrency/libflow_control_ticketholder.a build/opt/mongo/db/concurrency/flow_control_ticketholder.o Skipping ranlib for thin archive build/opt/mongo/db/concurrency/libflow_control_ticketholder.a /tmp/instance-0/output-1/host/bin/python3 buildscripts/idl/idlc.py --include src --base_dir build/opt --target_arch arm --header build/opt/mongo/db/repl/dbcheck_gen.h --output build/opt/mongo/db/repl/dbcheck_gen.cpp src/mongo/db/repl/dbcheck.idl /tmp/instance-0/output-1/host/bin/python3 buildscripts/idl/idlc.py --include src --base_dir build/opt --target_arch arm --header build/opt/mongo/db/catalog/health_log_gen.h --output build/opt/mongo/db/catalog/health_log_gen.cpp src/mongo/db/catalog/health_log.idl /tmp/instance-0/output-1/host/bin/arm-linux-g++ -o build/opt/mongo/db/repl/dbcheck.o -c -Woverloaded-virtual -Wpessimizing-move -Wredundant-move -Wno-maybe-uninitialized -fsized-deallocation -std=c++17 -fno-omit-frame-pointer -fno-strict-aliasing -ggdb -pthread -Wall -Wsign-compare -Wno-unknown-pragmas -Winvalid-pch -O2 -Wno-unused-local-typedefs -Wno-unused-function -Wno-deprecated-declarations -Wno-unused-const-variable -Wno-unused-but-set-variable -Wno-missing-braces -fstack-protector-strong -fno-builtin-memcmp -fPIE -DSAFEINT_USE_INTRINSICS=0 -DNDEBUG -D_XOPEN_SOURCE=700 -D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_FORTIFY_SOURCE=2 -DBOOST_SYSTEM_NO_DEPRECATED -DBOOST_MATH_NO_LONG_DOUBLE_MATH_FUNCTIONS -DBOOST_ENABLE_ASSERT_DEBUG_HANDLER -DABSL_FORCE_ALIGNED_ACCESS -Isrc/third_party/s2 -Isrc/third_party/SafeInt -Isrc/third_party/fmt/dist/include -Isrc/third_party/abseil-cpp-master/abseil-cpp -Ibuild/opt -Isrc src/mongo/db/repl/dbcheck.cpp In file included from src/mongo/db/matcher/expression_text_base.h:32, from src/mongo/db/matcher/extensions_callback.h:33, from src/mongo/db/matcher/extensions_callback_noop.h:32, from src/mongo/db/query/canonical_query.h:37, from src/mongo/db/query/plan_cache.h:37, from src/mongo/db/catalog/collection_info_cache.h:33, from src/mongo/db/catalog/collection.h:42, from src/mongo/db/catalog/collection_catalog.h:35, from src/mongo/db/repl/dbcheck.cpp:33: src/mongo/db/matcher/expression_leaf.h: In member function 'virtual std::unique_ptr mongo::EqualityMatchExpression::shallowClone() const': src/mongo/db/matcher/expression_leaf.h:199:25: warning: redundant move in return statement [-Wredundant-move] 199 | return std::move(e); | ~~~~~~~~~^~~ src/mongo/db/matcher/expression_leaf.h:199:25: note: remove 'std::move' call src/mongo/db/matcher/expression_leaf.h: In member function 'virtual std::unique_ptr mongo::LTEMatchExpression::shallowClone() const': src/mongo/db/matcher/expression_leaf.h:221:25: warning: redundant move in return statement [-Wredundant-move] 221 | return std::move(e); | ~~~~~~~~~^~~ src/mongo/db/matcher/expression_leaf.h:221:25: note: remove 'std::move' call src/mongo/db/matcher/expression_leaf.h: In member function 'virtual std::unique_ptr mongo::LTMatchExpression::shallowClone() const': src/mongo/db/matcher/expression_leaf.h:243:25: warning: redundant move in return statement [-Wredundant-move] 243 | return std::move(e); | ~~~~~~~~~^~~ src/mongo/db/matcher/expression_leaf.h:243:25: note: remove 'std::move' call src/mongo/db/matcher/expression_leaf.h: In member function 'virtual std::unique_ptr mongo::GTMatchExpression::shallowClone() const': src/mongo/db/matcher/expression_leaf.h:265:25: warning: redundant move in return statement [-Wredundant-move] 265 | return std::move(e); | ~~~~~~~~~^~~ src/mongo/db/matcher/expression_leaf.h:265:25: note: remove 'std::move' call src/mongo/db/matcher/expression_leaf.h: In member function 'virtual std::unique_ptr mongo::GTEMatchExpression::shallowClone() const': src/mongo/db/matcher/expression_leaf.h:287:25: warning: redundant move in return statement [-Wredundant-move] 287 | return std::move(e); | ~~~~~~~~~^~~ src/mongo/db/matcher/expression_leaf.h:287:25: note: remove 'std::move' call src/mongo/db/matcher/expression_leaf.h: In member function 'virtual std::unique_ptr mongo::RegexMatchExpression::shallowClone() const': src/mongo/db/matcher/expression_leaf.h:306:25: warning: redundant move in return statement [-Wredundant-move] 306 | return std::move(e); | ~~~~~~~~~^~~ src/mongo/db/matcher/expression_leaf.h:306:25: note: remove 'std::move' call src/mongo/db/matcher/expression_leaf.h: In member function 'virtual std::unique_ptr mongo::ModMatchExpression::shallowClone() const': src/mongo/db/matcher/expression_leaf.h:350:25: warning: redundant move in return statement [-Wredundant-move] 350 | return std::move(m); | ~~~~~~~~~^~~ src/mongo/db/matcher/expression_leaf.h:350:25: note: remove 'std::move' call src/mongo/db/matcher/expression_leaf.h: In member function 'virtual std::unique_ptr mongo::ExistsMatchExpression::shallowClone() const': src/mongo/db/matcher/expression_leaf.h:386:25: warning: redundant move in return statement [-Wredundant-move] 386 | return std::move(e); | ~~~~~~~~~^~~ src/mongo/db/matcher/expression_leaf.h:386:25: note: remove 'std::move' call src/mongo/db/matcher/expression_leaf.h: In member function 'virtual std::unique_ptr mongo::BitsAllSetMatchExpression::shallowClone() const': src/mongo/db/matcher/expression_leaf.h:570:25: warning: redundant move in return statement [-Wredundant-move] 570 | return std::move(bitTestMatchExpression); | ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~ src/mongo/db/matcher/expression_leaf.h:570:25: note: remove 'std::move' call src/mongo/db/matcher/expression_leaf.h: In member function 'virtual std::unique_ptr mongo::BitsAllClearMatchExpression::shallowClone() const': src/mongo/db/matcher/expression_leaf.h:591:25: warning: redundant move in return statement [-Wredundant-move] 591 | return std::move(bitTestMatchExpression); | ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~ src/mongo/db/matcher/expression_leaf.h:591:25: note: remove 'std::move' call src/mongo/db/matcher/expression_leaf.h: In member function 'virtual std::unique_ptr mongo::BitsAnySetMatchExpression::shallowClone() const': src/mongo/db/matcher/expression_leaf.h:612:25: warning: redundant move in return statement [-Wredundant-move] 612 | return std::move(bitTestMatchExpression); | ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~ src/mongo/db/matcher/expression_leaf.h:612:25: note: remove 'std::move' call src/mongo/db/matcher/expression_leaf.h: In member function 'virtual std::unique_ptr mongo::BitsAnyClearMatchExpression::shallowClone() const': src/mongo/db/matcher/expression_leaf.h:633:25: warning: redundant move in return statement [-Wredundant-move] 633 | return std::move(bitTestMatchExpression); | ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~ src/mongo/db/matcher/expression_leaf.h:633:25: note: remove 'std::move' call In file included from src/mongo/db/matcher/expression_parser.h:36, from src/mongo/db/query/parsed_projection.h:33, from src/mongo/db/query/canonical_query.h:39, from src/mongo/db/query/plan_cache.h:37, from src/mongo/db/catalog/collection_info_cache.h:33, from src/mongo/db/catalog/collection.h:42, from src/mongo/db/catalog/collection_catalog.h:35, from src/mongo/db/repl/dbcheck.cpp:33: src/mongo/db/matcher/expression_tree.h: In member function 'virtual std::unique_ptr mongo::AndMatchExpression::shallowClone() const': src/mongo/db/matcher/expression_tree.h:125:25: warning: redundant move in return statement [-Wredundant-move] 125 | return std::move(self); | ~~~~~~~~~^~~~~~ src/mongo/db/matcher/expression_tree.h:125:25: note: remove 'std::move' call src/mongo/db/matcher/expression_tree.h: In member function 'virtual std::unique_ptr mongo::OrMatchExpression::shallowClone() const': src/mongo/db/matcher/expression_tree.h:154:25: warning: redundant move in return statement [-Wredundant-move] 154 | return std::move(self); | ~~~~~~~~~^~~~~~ src/mongo/db/matcher/expression_tree.h:154:25: note: remove 'std::move' call src/mongo/db/matcher/expression_tree.h: In member function 'virtual std::unique_ptr mongo::NorMatchExpression::shallowClone() const': src/mongo/db/matcher/expression_tree.h:183:25: warning: redundant move in return statement [-Wredundant-move] 183 | return std::move(self); | ~~~~~~~~~^~~~~~ src/mongo/db/matcher/expression_tree.h:183:25: note: remove 'std::move' call src/mongo/db/matcher/expression_tree.h: In member function 'virtual std::unique_ptr mongo::NotMatchExpression::shallowClone() const': src/mongo/db/matcher/expression_tree.h:201:25: warning: redundant move in return statement [-Wredundant-move] 201 | return std::move(self); | ~~~~~~~~~^~~~~~ src/mongo/db/matcher/expression_tree.h:201:25: note: remove 'std::move' call In file included from src/mongo/db/matcher/expression_parser.h:37, from src/mongo/db/query/parsed_projection.h:33, from src/mongo/db/query/canonical_query.h:39, from src/mongo/db/query/plan_cache.h:37, from src/mongo/db/catalog/collection_info_cache.h:33, from src/mongo/db/catalog/collection.h:42, from src/mongo/db/catalog/collection_catalog.h:35, from src/mongo/db/repl/dbcheck.cpp:33: src/mongo/db/matcher/expression_type.h: In member function 'virtual std::unique_ptr mongo::InternalSchemaBinDataSubTypeExpression::shallowClone() const': src/mongo/db/matcher/expression_type.h:196:25: warning: redundant move in return statement [-Wredundant-move] 196 | return std::move(expr); | ~~~~~~~~~^~~~~~ src/mongo/db/matcher/expression_type.h:196:25: note: remove 'std::move' call In file included from src/mongo/db/pipeline/expression_context.h:41, from src/mongo/db/matcher/expression_with_placeholder.h:37, from src/mongo/db/matcher/expression_parser.h:38, from src/mongo/db/query/parsed_projection.h:33, from src/mongo/db/query/canonical_query.h:39, from src/mongo/db/query/plan_cache.h:37, from src/mongo/db/catalog/collection_info_cache.h:33, from src/mongo/db/catalog/collection.h:42, from src/mongo/db/catalog/collection_catalog.h:35, from src/mongo/db/repl/dbcheck.cpp:33: src/mongo/db/pipeline/aggregation_request.h: In static member function 'static mongo::StatusWith > mongo::AggregationRequest::parsePipelineFromBSON(mongo::BSONElement)': src/mongo/db/pipeline/aggregation_request.h:90:25: warning: redundant move in return statement [-Wredundant-move] 90 | return std::move(pipeline); | ~~~~~~~~~^~~~~~~~~~ src/mongo/db/pipeline/aggregation_request.h:90:25: note: remove 'std::move' call In file included from src/mongo/db/matcher/expression_parser.h:37, from src/mongo/db/query/parsed_projection.h:33, from src/mongo/db/query/canonical_query.h:39, from src/mongo/db/query/plan_cache.h:37, from src/mongo/db/catalog/collection_info_cache.h:33, from src/mongo/db/catalog/collection.h:42, from src/mongo/db/catalog/collection_catalog.h:35, from src/mongo/db/repl/dbcheck.cpp:33: src/mongo/db/matcher/expression_type.h: In instantiation of 'std::unique_ptr mongo::TypeMatchExpressionBase::shallowClone() const [with T = mongo::InternalSchemaBinDataEncryptedTypeExpression]': src/mongo/db/matcher/expression_type.h:69:38: required from here src/mongo/db/matcher/expression_type.h:74:30: warning: redundant move in return statement [-Wredundant-move] 74 | return std::move(expr); | ^ src/mongo/db/matcher/expression_type.h:74:30: note: remove 'std::move' call src/mongo/db/matcher/expression_type.h: In instantiation of 'std::unique_ptr mongo::TypeMatchExpressionBase::shallowClone() const [with T = mongo::InternalSchemaTypeExpression]': src/mongo/db/matcher/expression_type.h:69:38: required from here src/mongo/db/matcher/expression_type.h:74:30: warning: redundant move in return statement [-Wredundant-move] src/mongo/db/matcher/expression_type.h:74:30: note: remove 'std::move' call src/mongo/db/matcher/expression_type.h: In instantiation of 'std::unique_ptr mongo::TypeMatchExpressionBase::shallowClone() const [with T = mongo::TypeMatchExpression]': src/mongo/db/matcher/expression_type.h:69:38: required from here src/mongo/db/matcher/expression_type.h:74:30: warning: redundant move in return statement [-Wredundant-move] src/mongo/db/matcher/expression_type.h:74:30: note: remove 'std::move' call /tmp/instance-0/output-1/host/bin/arm-linux-g++ -o build/opt/mongo/db/repl/dbcheck_idl.o -c -Woverloaded-virtual -Wpessimizing-move -Wredundant-move -Wno-maybe-uninitialized -fsized-deallocation -std=c++17 -fno-omit-frame-pointer -fno-strict-aliasing -ggdb -pthread -Wall -Wsign-compare -Wno-unknown-pragmas -Winvalid-pch -O2 -Wno-unused-local-typedefs -Wno-unused-function -Wno-deprecated-declarations -Wno-unused-const-variable -Wno-unused-but-set-variable -Wno-missing-braces -fstack-protector-strong -fno-builtin-memcmp -fPIE -DSAFEINT_USE_INTRINSICS=0 -DNDEBUG -D_XOPEN_SOURCE=700 -D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_FORTIFY_SOURCE=2 -DBOOST_SYSTEM_NO_DEPRECATED -DBOOST_MATH_NO_LONG_DOUBLE_MATH_FUNCTIONS -DBOOST_ENABLE_ASSERT_DEBUG_HANDLER -DABSL_FORCE_ALIGNED_ACCESS -Isrc/third_party/s2 -Isrc/third_party/SafeInt -Isrc/third_party/fmt/dist/include -Isrc/third_party/abseil-cpp-master/abseil-cpp -Ibuild/opt -Isrc src/mongo/db/repl/dbcheck_idl.cpp /tmp/instance-0/output-1/host/bin/arm-linux-g++ -o build/opt/mongo/db/repl/dbcheck_gen.o -c -Woverloaded-virtual -Wpessimizing-move -Wredundant-move -Wno-maybe-uninitialized -fsized-deallocation -std=c++17 -fno-omit-frame-pointer -fno-strict-aliasing -ggdb -pthread -Wall -Wsign-compare -Wno-unknown-pragmas -Winvalid-pch -O2 -Wno-unused-local-typedefs -Wno-unused-function -Wno-deprecated-declarations -Wno-unused-const-variable -Wno-unused-but-set-variable -Wno-missing-braces -fstack-protector-strong -fno-builtin-memcmp -fPIE -DSAFEINT_USE_INTRINSICS=0 -DNDEBUG -D_XOPEN_SOURCE=700 -D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_FORTIFY_SOURCE=2 -DBOOST_SYSTEM_NO_DEPRECATED -DBOOST_MATH_NO_LONG_DOUBLE_MATH_FUNCTIONS -DBOOST_ENABLE_ASSERT_DEBUG_HANDLER -DABSL_FORCE_ALIGNED_ACCESS -Isrc/third_party/s2 -Isrc/third_party/SafeInt -Isrc/third_party/fmt/dist/include -Isrc/third_party/abseil-cpp-master/abseil-cpp -Ibuild/opt -Isrc build/opt/mongo/db/repl/dbcheck_gen.cpp In file included from src/mongo/db/matcher/expression_text_base.h:32, from src/mongo/db/matcher/extensions_callback.h:33, from src/mongo/db/matcher/extensions_callback_noop.h:32, from src/mongo/db/query/canonical_query.h:37, from src/mongo/db/query/explain.h:34, from src/mongo/db/commands.h:46, from build/opt/mongo/db/repl/dbcheck_gen.cpp:16: src/mongo/db/matcher/expression_leaf.h: In member function 'virtual std::unique_ptr mongo::EqualityMatchExpression::shallowClone() const': src/mongo/db/matcher/expression_leaf.h:199:25: warning: redundant move in return statement [-Wredundant-move] 199 | return std::move(e); | ~~~~~~~~~^~~ src/mongo/db/matcher/expression_leaf.h:199:25: note: remove 'std::move' call src/mongo/db/matcher/expression_leaf.h: In member function 'virtual std::unique_ptr mongo::LTEMatchExpression::shallowClone() const': src/mongo/db/matcher/expression_leaf.h:221:25: warning: redundant move in return statement [-Wredundant-move] 221 | return std::move(e); | ~~~~~~~~~^~~ src/mongo/db/matcher/expression_leaf.h:221:25: note: remove 'std::move' call src/mongo/db/matcher/expression_leaf.h: In member function 'virtual std::unique_ptr mongo::LTMatchExpression::shallowClone() const': src/mongo/db/matcher/expression_leaf.h:243:25: warning: redundant move in return statement [-Wredundant-move] 243 | return std::move(e); | ~~~~~~~~~^~~ src/mongo/db/matcher/expression_leaf.h:243:25: note: remove 'std::move' call src/mongo/db/matcher/expression_leaf.h: In member function 'virtual std::unique_ptr mongo::GTMatchExpression::shallowClone() const': src/mongo/db/matcher/expression_leaf.h:265:25: warning: redundant move in return statement [-Wredundant-move] 265 | return std::move(e); | ~~~~~~~~~^~~ src/mongo/db/matcher/expression_leaf.h:265:25: note: remove 'std::move' call src/mongo/db/matcher/expression_leaf.h: In member function 'virtual std::unique_ptr mongo::GTEMatchExpression::shallowClone() const': src/mongo/db/matcher/expression_leaf.h:287:25: warning: redundant move in return statement [-Wredundant-move] 287 | return std::move(e); | ~~~~~~~~~^~~ src/mongo/db/matcher/expression_leaf.h:287:25: note: remove 'std::move' call src/mongo/db/matcher/expression_leaf.h: In member function 'virtual std::unique_ptr mongo::RegexMatchExpression::shallowClone() const': src/mongo/db/matcher/expression_leaf.h:306:25: warning: redundant move in return statement [-Wredundant-move] 306 | return std::move(e); | ~~~~~~~~~^~~ src/mongo/db/matcher/expression_leaf.h:306:25: note: remove 'std::move' call src/mongo/db/matcher/expression_leaf.h: In member function 'virtual std::unique_ptr mongo::ModMatchExpression::shallowClone() const': src/mongo/db/matcher/expression_leaf.h:350:25: warning: redundant move in return statement [-Wredundant-move] 350 | return std::move(m); | ~~~~~~~~~^~~ src/mongo/db/matcher/expression_leaf.h:350:25: note: remove 'std::move' call src/mongo/db/matcher/expression_leaf.h: In member function 'virtual std::unique_ptr mongo::ExistsMatchExpression::shallowClone() const': src/mongo/db/matcher/expression_leaf.h:386:25: warning: redundant move in return statement [-Wredundant-move] 386 | return std::move(e); | ~~~~~~~~~^~~ src/mongo/db/matcher/expression_leaf.h:386:25: note: remove 'std::move' call src/mongo/db/matcher/expression_leaf.h: In member function 'virtual std::unique_ptr mongo::BitsAllSetMatchExpression::shallowClone() const': src/mongo/db/matcher/expression_leaf.h:570:25: warning: redundant move in return statement [-Wredundant-move] 570 | return std::move(bitTestMatchExpression); | ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~ src/mongo/db/matcher/expression_leaf.h:570:25: note: remove 'std::move' call src/mongo/db/matcher/expression_leaf.h: In member function 'virtual std::unique_ptr mongo::BitsAllClearMatchExpression::shallowClone() const': src/mongo/db/matcher/expression_leaf.h:591:25: warning: redundant move in return statement [-Wredundant-move] 591 | return std::move(bitTestMatchExpression); | ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~ src/mongo/db/matcher/expression_leaf.h:591:25: note: remove 'std::move' call src/mongo/db/matcher/expression_leaf.h: In member function 'virtual std::unique_ptr mongo::BitsAnySetMatchExpression::shallowClone() const': src/mongo/db/matcher/expression_leaf.h:612:25: warning: redundant move in return statement [-Wredundant-move] 612 | return std::move(bitTestMatchExpression); | ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~ src/mongo/db/matcher/expression_leaf.h:612:25: note: remove 'std::move' call src/mongo/db/matcher/expression_leaf.h: In member function 'virtual std::unique_ptr mongo::BitsAnyClearMatchExpression::shallowClone() const': src/mongo/db/matcher/expression_leaf.h:633:25: warning: redundant move in return statement [-Wredundant-move] 633 | return std::move(bitTestMatchExpression); | ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~ src/mongo/db/matcher/expression_leaf.h:633:25: note: remove 'std::move' call In file included from src/mongo/db/matcher/expression_parser.h:36, from src/mongo/db/query/parsed_projection.h:33, from src/mongo/db/query/canonical_query.h:39, from src/mongo/db/query/explain.h:34, from src/mongo/db/commands.h:46, from build/opt/mongo/db/repl/dbcheck_gen.cpp:16: src/mongo/db/matcher/expression_tree.h: In member function 'virtual std::unique_ptr mongo::AndMatchExpression::shallowClone() const': src/mongo/db/matcher/expression_tree.h:125:25: warning: redundant move in return statement [-Wredundant-move] 125 | return std::move(self); | ~~~~~~~~~^~~~~~ src/mongo/db/matcher/expression_tree.h:125:25: note: remove 'std::move' call src/mongo/db/matcher/expression_tree.h: In member function 'virtual std::unique_ptr mongo::OrMatchExpression::shallowClone() const': src/mongo/db/matcher/expression_tree.h:154:25: warning: redundant move in return statement [-Wredundant-move] 154 | return std::move(self); | ~~~~~~~~~^~~~~~ src/mongo/db/matcher/expression_tree.h:154:25: note: remove 'std::move' call src/mongo/db/matcher/expression_tree.h: In member function 'virtual std::unique_ptr mongo::NorMatchExpression::shallowClone() const': src/mongo/db/matcher/expression_tree.h:183:25: warning: redundant move in return statement [-Wredundant-move] 183 | return std::move(self); | ~~~~~~~~~^~~~~~ src/mongo/db/matcher/expression_tree.h:183:25: note: remove 'std::move' call src/mongo/db/matcher/expression_tree.h: In member function 'virtual std::unique_ptr mongo::NotMatchExpression::shallowClone() const': src/mongo/db/matcher/expression_tree.h:201:25: warning: redundant move in return statement [-Wredundant-move] 201 | return std::move(self); | ~~~~~~~~~^~~~~~ src/mongo/db/matcher/expression_tree.h:201:25: note: remove 'std::move' call In file included from src/mongo/db/matcher/expression_parser.h:37, from src/mongo/db/query/parsed_projection.h:33, from src/mongo/db/query/canonical_query.h:39, from src/mongo/db/query/explain.h:34, from src/mongo/db/commands.h:46, from build/opt/mongo/db/repl/dbcheck_gen.cpp:16: src/mongo/db/matcher/expression_type.h: In member function 'virtual std::unique_ptr mongo::InternalSchemaBinDataSubTypeExpression::shallowClone() const': src/mongo/db/matcher/expression_type.h:196:25: warning: redundant move in return statement [-Wredundant-move] 196 | return std::move(expr); | ~~~~~~~~~^~~~~~ src/mongo/db/matcher/expression_type.h:196:25: note: remove 'std::move' call In file included from src/mongo/db/pipeline/expression_context.h:41, from src/mongo/db/matcher/expression_with_placeholder.h:37, from src/mongo/db/matcher/expression_parser.h:38, from src/mongo/db/query/parsed_projection.h:33, from src/mongo/db/query/canonical_query.h:39, from src/mongo/db/query/explain.h:34, from src/mongo/db/commands.h:46, from build/opt/mongo/db/repl/dbcheck_gen.cpp:16: src/mongo/db/pipeline/aggregation_request.h: In static member function 'static mongo::StatusWith > mongo::AggregationRequest::parsePipelineFromBSON(mongo::BSONElement)': src/mongo/db/pipeline/aggregation_request.h:90:25: warning: redundant move in return statement [-Wredundant-move] 90 | return std::move(pipeline); | ~~~~~~~~~^~~~~~~~~~ src/mongo/db/pipeline/aggregation_request.h:90:25: note: remove 'std::move' call In file included from src/mongo/db/matcher/expression_parser.h:37, from src/mongo/db/query/parsed_projection.h:33, from src/mongo/db/query/canonical_query.h:39, from src/mongo/db/query/explain.h:34, from src/mongo/db/commands.h:46, from build/opt/mongo/db/repl/dbcheck_gen.cpp:16: src/mongo/db/matcher/expression_type.h: In instantiation of 'std::unique_ptr mongo::TypeMatchExpressionBase::shallowClone() const [with T = mongo::InternalSchemaBinDataEncryptedTypeExpression]': src/mongo/db/matcher/expression_type.h:69:38: required from here src/mongo/db/matcher/expression_type.h:74:30: warning: redundant move in return statement [-Wredundant-move] 74 | return std::move(expr); | ^ src/mongo/db/matcher/expression_type.h:74:30: note: remove 'std::move' call src/mongo/db/matcher/expression_type.h: In instantiation of 'std::unique_ptr mongo::TypeMatchExpressionBase::shallowClone() const [with T = mongo::InternalSchemaTypeExpression]': src/mongo/db/matcher/expression_type.h:69:38: required from here src/mongo/db/matcher/expression_type.h:74:30: warning: redundant move in return statement [-Wredundant-move] src/mongo/db/matcher/expression_type.h:74:30: note: remove 'std::move' call src/mongo/db/matcher/expression_type.h: In instantiation of 'std::unique_ptr mongo::TypeMatchExpressionBase::shallowClone() const [with T = mongo::TypeMatchExpression]': src/mongo/db/matcher/expression_type.h:69:38: required from here src/mongo/db/matcher/expression_type.h:74:30: warning: redundant move in return statement [-Wredundant-move] src/mongo/db/matcher/expression_type.h:74:30: note: remove 'std::move' call