Dev windows support part2 #548

Job	Run time
test (x86_64-unknown-linux-gnu, stable)	4m 40s
test (x86_64-unknown-linux-gnu, nightly)	4m 40s
test (i686-unknown-linux-gnu, stable)	3m 45s
test (i686-unknown-linux-gnu, nightly)	2m 23s
test (aarch64-unknown-linux-gnu, stable)	1m 36s
test (aarch64-unknown-linux-gnu, nightly)	1m 25s
test (armv7-unknown-linux-gnueabihf, stable)	1m 53s
test (armv7-unknown-linux-gnueabihf, nightly)	1m 39s
test (riscv64gc-unknown-linux-gnu, stable)	1m 53s
test (riscv64gc-unknown-linux-gnu, nightly)	1m 43s
test (s390x-unknown-linux-gnu, stable)	1m 48s
test (s390x-unknown-linux-gnu, nightly)	1m 46s
test (x86_64-apple-darwin, stable)	3m 55s
test (x86_64-apple-darwin, nightly)	5m 23s
test (aarch64-apple-darwin, stable)	2m 36s
test (aarch64-apple-darwin, nightly)	2m 34s
test (x86_64-pc-windows-gnu, stable)	2m 16s
test (x86_64-pc-windows-gnu, nightly)	1m 27s
test (x86_64-pc-windows-msvc, stable)	1m 50s
test (x86_64-pc-windows-msvc, nightly)	1m 32s
test (i686-pc-windows-gnu, stable)	1m 39s
test (i686-pc-windows-gnu, nightly)	1m 41s
test (i686-pc-windows-msvc, stable)	2m 58s
test (i686-pc-windows-msvc, nightly)	1m 14s
	58m 16s

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