Test

ST: Use clock_gettime to prevent time jumping backwards. v7.0.17 #3140

Job	Run time
multiple-arch-aarch64	5m 38s
cygwin64-cache	2m 50s
multiple-arch-armv7	5m 40s
utest-regression-blackbox-test	4m 59s
fast	1s
cygwin64	8m 19s
build-centos7	2m 18s
build-ubuntu18	1m 35s
build-ubuntu20	1m 39s
build-cross-aarch64	2m 20s
build-cross-arm	2m 32s
build-ubuntu16	1m 35s
multiple-arch-amd64	1m 23s
coverage	2m 30s
test-done	1s
	43m 20s

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