Dev windows support part2 #549

Job	Run time
test (x86_64-unknown-linux-gnu, stable)	4m 55s
test (x86_64-unknown-linux-gnu, nightly)	4m 53s
test (i686-unknown-linux-gnu, stable)	1m 36s
test (i686-unknown-linux-gnu, nightly)	1m 37s
test (aarch64-unknown-linux-gnu, stable)	1m 29s
test (aarch64-unknown-linux-gnu, nightly)	1m 25s
test (armv7-unknown-linux-gnueabihf, stable)	1m 35s
test (armv7-unknown-linux-gnueabihf, nightly)	1m 36s
test (riscv64gc-unknown-linux-gnu, stable)	2m 14s
test (riscv64gc-unknown-linux-gnu, nightly)	2m 0s
test (s390x-unknown-linux-gnu, stable)	1m 38s
test (s390x-unknown-linux-gnu, nightly)	1m 52s
test (x86_64-apple-darwin, stable)	5m 19s
test (x86_64-apple-darwin, nightly)	3m 44s
test (aarch64-apple-darwin, stable)	2m 33s
test (aarch64-apple-darwin, nightly)	2m 31s
test (x86_64-pc-windows-gnu, stable)	3m 6s
test (x86_64-pc-windows-gnu, nightly)	2m 40s
test (x86_64-pc-windows-msvc, stable)	1m 33s
test (x86_64-pc-windows-msvc, nightly)	1m 17s
test (i686-pc-windows-gnu, stable)	1m 57s
test (i686-pc-windows-gnu, nightly)	2m 1s
test (i686-pc-windows-msvc, stable)	2m 44s
test (i686-pc-windows-msvc, nightly)	2m 34s
	58m 49s

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