Merge pull request #1291 from Nathaniel-Wu/master #325

Job	Run time
Build (linux, amd64)	51s
Build (linux, 386)	1m 1s
Build (freebsd, amd64)	1m 8s
Build (freebsd, 386)	32s
Build (openbsd, amd64)	44s
Build (openbsd, 386)	26s
Build (dragonfly, amd64)	48s
Build (windows, amd64)	32s
Build (windows, 386)	36s
Build (darwin, amd64)	52s
Build (linux, arm, 5)	42s
Build (linux, arm, 6)	45s
Build (linux, arm, 7)	40s
Build (linux, arm64)	31s
Build (linux, mips, softfloat)	54s
Build (linux, mips, hardfloat)	44s
Build (linux, mipsle, softfloat)	33s
Build (linux, mipsle, hardfloat)	53s
Build (linux, mips64)	58s
Build (linux, mips64le)	35s
Build (linux, ppc64)	31s
Build (linux, ppc64le)	45s
Build (linux, s390x)	53s
Build (windows, arm)	40s
Build (android, arm64)	40s
Build (darwin, arm64)	55s
Build (freebsd, arm64)	1m 4s
	20m 13s

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