/external/envoy/test/mocks/config/BUILD:11:1: C++ compilation of rule '@envoy//test/mocks/config:config_mocks' failed (Exit 1) gcc failed: error executing command /usr/bin/gcc -U_FORTIFY_SOURCE -fstack-protector -Wall -Wunused-but-set-parameter -Wno-free-nonheap-object -fno-omit-frame-pointer '-std=c++0x' -MD -MF ...

Use --sandbox_debug to see verbose messages from the sandbox
In file included from bazel-out/k8-fastbuild/bin/external/envoy/include/envoy/upstream/_virtual_includes/cluster_manager_interface/envoy/upstream/cluster_manager.h:15,
                 from bazel-out/k8-fastbuild/bin/external/envoy/include/envoy/server/_virtual_includes/factory_context_interface/envoy/server/factory_context.h:26,
                 from bazel-out/k8-fastbuild/bin/external/envoy/include/envoy/server/_virtual_includes/filter_config_interface/envoy/server/filter_config.h:10,
                 from bazel-out/k8-fastbuild/bin/external/envoy/include/envoy/config/_virtual_includes/config_provider_manager_interface/envoy/config/config_provider_manager.h:6,
                 from external/envoy/test/mocks/config/mocks.h:3,
                 from external/envoy/test/mocks/config/mocks.cc:1:
bazel-out/k8-fastbuild/bin/external/envoy/include/envoy/config/_virtual_includes/grpc_mux_interface/envoy/config/grpc_mux.h:75:16: error: 'virtual void Envoy::Config::GrpcMux::pause(std::vector<std::__cxx11::basic_string<char> >)' was hidden [-Werror=overloaded-virtual]
   75 |   virtual void pause(const std::vector<std::string> type_urls) PURE;
      |                ^~~~~
In file included from external/com_google_googletest/googlemock/include/gmock/gmock.h:61,
                 from external/envoy/test/test_common/utility.h:35,
                 from external/envoy/test/mocks/config/mocks.h:15,
                 from external/envoy/test/mocks/config/mocks.cc:1:
external/envoy/test/mocks/config/mocks.h:74:21: error:   by 'virtual testing::internal::Function<void(const std::__cxx11::basic_string<char>&)>::Result Envoy::Config::MockGrpcMux::pause(testing::internal::ElemFromListImpl<const std::__cxx11::basic_string<char>&, 0, 0>::type)' [-Werror=overloaded-virtual]
   74 |   MOCK_METHOD(void, pause, (const std::string& type_url));
      |                     ^~~~~
In file included from bazel-out/k8-fastbuild/bin/external/envoy/include/envoy/upstream/_virtual_includes/cluster_manager_interface/envoy/upstream/cluster_manager.h:15,
                 from bazel-out/k8-fastbuild/bin/external/envoy/include/envoy/server/_virtual_includes/factory_context_interface/envoy/server/factory_context.h:26,
                 from bazel-out/k8-fastbuild/bin/external/envoy/include/envoy/server/_virtual_includes/filter_config_interface/envoy/server/filter_config.h:10,
                 from bazel-out/k8-fastbuild/bin/external/envoy/include/envoy/config/_virtual_includes/config_provider_manager_interface/envoy/config/config_provider_manager.h:6,
                 from external/envoy/test/mocks/config/mocks.h:3,
                 from external/envoy/test/mocks/config/mocks.cc:1:
bazel-out/k8-fastbuild/bin/external/envoy/include/envoy/config/_virtual_includes/grpc_mux_interface/envoy/config/grpc_mux.h:106:16: error: 'virtual bool Envoy::Config::GrpcMux::paused(std::vector<std::__cxx11::basic_string<char> >) const' was hidden [-Werror=overloaded-virtual]
  106 |   virtual bool paused(const std::vector<std::string> type_urls) const PURE;
      |                ^~~~~~
In file included from external/com_google_googletest/googlemock/include/gmock/gmock.h:61,
                 from external/envoy/test/test_common/utility.h:35,
                 from external/envoy/test/mocks/config/mocks.h:15,
                 from external/envoy/test/mocks/config/mocks.cc:1:
external/envoy/test/mocks/config/mocks.h:76:21: error:   by 'virtual testing::internal::Function<bool(const std::__cxx11::basic_string<char>&)>::Result Envoy::Config::MockGrpcMux::paused(testing::internal::ElemFromListImpl<const std::__cxx11::basic_string<char>&, 0, 0>::type) const' [-Werror=overloaded-virtual]
   76 |   MOCK_METHOD(bool, paused, (const std::string& type_url), (const));
      |                     ^~~~~~
In file included from bazel-out/k8-fastbuild/bin/external/envoy/include/envoy/upstream/_virtual_includes/cluster_manager_interface/envoy/upstream/cluster_manager.h:15,
                 from bazel-out/k8-fastbuild/bin/external/envoy/include/envoy/server/_virtual_includes/factory_context_interface/envoy/server/factory_context.h:26,
                 from bazel-out/k8-fastbuild/bin/external/envoy/include/envoy/server/_virtual_includes/filter_config_interface/envoy/server/filter_config.h:10,
                 from bazel-out/k8-fastbuild/bin/external/envoy/include/envoy/config/_virtual_includes/config_provider_manager_interface/envoy/config/config_provider_manager.h:6,
                 from external/envoy/test/mocks/config/mocks.h:3,
                 from external/envoy/test/mocks/config/mocks.cc:1:
bazel-out/k8-fastbuild/bin/external/envoy/include/envoy/config/_virtual_includes/grpc_mux_interface/envoy/config/grpc_mux.h:90:16: error: 'virtual void Envoy::Config::GrpcMux::resume(std::vector<std::__cxx11::basic_string<char> >)' was hidden [-Werror=overloaded-virtual]
   90 |   virtual void resume(const std::vector<std::string> type_urls) PURE;
      |                ^~~~~~
In file included from external/com_google_googletest/googlemock/include/gmock/gmock.h:61,
                 from external/envoy/test/test_common/utility.h:35,
                 from external/envoy/test/mocks/config/mocks.h:15,
                 from external/envoy/test/mocks/config/mocks.cc:1:
external/envoy/test/mocks/config/mocks.h:75:21: error:   by 'virtual testing::internal::Function<void(const std::__cxx11::basic_string<char>&)>::Result Envoy::Config::MockGrpcMux::resume(testing::internal::ElemFromListImpl<const std::__cxx11::basic_string<char>&, 0, 0>::type)' [-Werror=overloaded-virtual]
   75 |   MOCK_METHOD(void, resume, (const std::string& type_url));
      |                     ^~~~~~