Fix Memory Leak Risk of Cpp Target #933

Job	Run time
cpp-lib-build (macos-11, clang, ON)	4m 19s
cpp-lib-build (macos-11, clang, OFF)	7m 30s
build (macos-11, tool)	1m 55s
cpp-lib-build (macos-11, gcc, ON)	4m 40s
build (macos-11, cpp)	28m 45s
cpp-lib-build (macos-11, gcc, OFF)	7m 44s
build (macos-11, csharp)	10m 28s
cpp-lib-build (ubuntu-20.04, clang, ON)	2m 53s
build (macos-11, dart)	6m 41s
cpp-lib-build (ubuntu-20.04, clang, OFF)	4m 17s
build (macos-11, go)	4m 45s
cpp-lib-build (ubuntu-20.04, gcc, ON)	2m 56s
build (macos-11, java)	2m 10s
cpp-lib-build (ubuntu-20.04, gcc, OFF)	4m 20s
build (macos-11, javascript)	2m 30s
cpp-lib-build (windows-2022, clang, ON)	5m 23s
build (macos-11, typescript)	18m 37s
cpp-lib-build (windows-2022, clang, OFF)	7m 9s
build (macos-11, php)	2m 7s
cpp-lib-build (windows-2022, cl)	4m 13s
build (macos-11, python3)	1m 51s
build (ubuntu-20.04, tool)	1m 9s
build (ubuntu-20.04, cpp)	16m 56s
build (ubuntu-20.04, csharp)	5m 49s
build (ubuntu-20.04, dart)	3m 45s
build (ubuntu-20.04, go)	2m 41s
build (ubuntu-20.04, java)	1m 15s
build (ubuntu-20.04, javascript)	1m 31s
build (ubuntu-20.04, typescript)	10m 5s
build (ubuntu-20.04, php)	1m 34s
build (ubuntu-20.04, python3)	1m 18s
build (windows-2022, tool)	1m 39s
build (windows-2022, cpp)	21m 47s
build (windows-2022, csharp)	9m 4s
build (windows-2022, dart)	4m 27s
build (windows-2022, go)	6m 0s
build (windows-2022, java)	1m 58s
build (windows-2022, javascript)	2m 32s
build (windows-2022, typescript)	23m 16s
build (windows-2022, php)	2m 45s
build (windows-2022, python3)	2m 42s
	4h 17m 26s

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