Test mem leak #1032

Job	Run time
clang-sanitizers (,thread)	2m 54s
linux-compat (manylinux1-x64)	2m 16s
linux-shared-libs	2m 7s
clang-sanitizers (,address,undefined)	2m 59s
linux-compat (manylinux1-x86)	2m 14s
linux-compat (manylinux2014-x64)	2m 15s
windows	11m 49s
linux-compat (manylinux2014-x86)	2m 7s
linux-compat (al2-x64)	2m 0s
linux-compat (fedora-34-x64)	2m 16s
windows-app-verifier	12m 59s
linux-compat (opensuse-leap)	2m 16s
linux-compiler-compat (clang-3)	2m 22s
linux-compat (rhel8-x64)	2m 16s
linux-compiler-compat (clang-6)	2m 29s
linux-compiler-compat (clang-8)	2m 31s
linux-compiler-compat (clang-9)	2m 30s
windows-shared-libs	3m 40s
linux-compiler-compat (clang-10)	2m 30s
windows-vc14 (x86)	10m 51s
linux-compiler-compat (clang-11)	2m 29s
windows-vc14 (x64)	16m 21s
linux-compiler-compat (gcc-4.8)	2m 27s
linux-compiler-compat (gcc-5)	2m 29s
linux-compiler-compat (gcc-6)	2m 19s
linux-compiler-compat (gcc-7)	2m 12s
linux-compiler-compat (gcc-8)	2m 29s
downstream	2m 13s
osx	2m 17s
	1h 52m 37s

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