check crossbuild github action #366

Job	Run time
pre-ci	4s
v3.2.x-gh-ubuntu20-linux-gcc-lean	2m 30s
v3.2.x-gh-ubuntu20-linux-gcc	3m 8s
v3.2.x-gh-ubuntu20-linux-gcc-reproducible	2m 43s
v3.2.x-gh-ubuntu20-linux-gcc-O2-g3	3m 18s
v3.2.x-gh-ubuntu20-linux-clang-lean	5m 16s
v3.2.x-gh-ubuntu20-linux-clang	6m 6s
v3.2.x-gh-ubuntu20-linux-clang-altlibs	10m 9s
v3.2.x-gh-ubuntu20-linux-clang-reproducible	6m 6s
v3.2.x-gh-ubuntu20-linux-clang-sanitizer	6m 31s
v3.2.x-gh-ubuntu20-linux-clang-O2-g3	5m 26s
Merge preflight	1s
Merge into upstream	0s
	51m 18s

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