validate port #955

Job	Run time
clang-sanitizers (,thread)	9m 34s
linux-compat (manylinux1-x64)	8m 49s
clang-sanitizers (,address,undefined)	9m 31s
linux-compat (manylinux1-x86)	8m 53s
linux-compiler-compat (clang-3)	9m 18s
linux-shared-libs	9m 2s
linux-compat (manylinux2014-x64)	8m 59s
linux-compiler-compat (clang-6)	9m 45s
linux-compat (manylinux2014-x86)	8m 58s
linux-compiler-compat (clang-8)	9m 41s
windows-shared-libs	2m 8s
linux-compat (al2-x64)	8m 34s
linux-compiler-compat (clang-9)	9m 47s
linux-compat (fedora-34-x64)	8m 57s
linux-compiler-compat (clang-10)	9m 31s
linux-compat (opensuse-leap)	9m 57s
linux-compiler-compat (clang-11)	9m 36s
linux-compiler-compat (gcc-4.8)	8m 41s
linux-compat (rhel8-x64)	9m 46s
linux-compiler-compat (gcc-5)	9m 2s
linux-compiler-compat (gcc-6)	9m 21s
linux-compiler-compat (gcc-7)	8m 57s
linux-compiler-compat (gcc-8)	9m 26s
osx	9m 37s
windows	2m 46s
windows-app-verifier	2m 49s
windows-vc14 (x86)	1m 10s
windows-vc14 (x64)	1m 43s
downstream	9m 36s
	3h 53m 54s

Provide feedback