Tests

Update zerocopy requirement from =0.8.0-alpha.5 to =0.8.0-alpha.6 #694

Job	Run time
test-ios	25s
test-ios	25s
test-cross (ubuntu-latest, powerpc-unknown-linux-gnu, stable)	2m 9s
test-cross (ubuntu-latest, powerpc-unknown-linux-gnu, stable)	1m 41s
test (ubuntu-latest, x86_64-unknown-linux-gnu, stable)	55s
test (ubuntu-latest, x86_64-unknown-linux-gnu, stable)	55s
Check doc	1m 5s
Check doc	1m 8s
test (macos-latest, x86_64-apple-darwin, stable)	1m 26s
test (macos-latest, x86_64-apple-darwin, stable)	1m 36s
test-miri	2m 16s
test-miri	3m 23s
test-no-std	14s
test-no-std	15s
test (windows-latest, x86_64-pc-windows-gnu, stable)	2m 57s
test (windows-latest, x86_64-pc-windows-gnu, stable)	2m 30s
test (windows-latest, x86_64-pc-windows-msvc, beta)	1m 48s
test (windows-latest, x86_64-pc-windows-msvc, beta)	2m 0s
test (ubuntu-latest, x86_64-unknown-linux-gnu, MSRV, 1.60.0)	4m 38s
test (ubuntu-latest, x86_64-unknown-linux-gnu, MSRV, 1.60.0)	1m 46s
test (ubuntu-latest, sudo apt-get update ; sudo apt install gcc-multilib, i686-unknown-linux-gnu,...	1m 37s
test (ubuntu-latest, sudo apt-get update ; sudo apt install gcc-multilib, i686-unknown-linux-gnu,...	2m 12s
test (ubuntu-latest, x86_64-unknown-linux-gnu, nightly, minimal_versions)	33s
test (ubuntu-latest, x86_64-unknown-linux-gnu, nightly, minimal_versions)	1m 23s
	39m 17s

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