[ISSUE #231] Enhance CI #489

Job	Run time
test (x86_64-unknown-linux-gnu, stable)	4m 50s
test (x86_64-unknown-linux-gnu, stable)	4m 50s
test (x86_64-unknown-linux-gnu, nightly)	4m 41s
test (x86_64-unknown-linux-gnu, nightly)	4m 41s
test (i686-unknown-linux-gnu, stable)	2m 5s
test (i686-unknown-linux-gnu, stable)	2m 5s
test (i686-unknown-linux-gnu, nightly)	1m 39s
test (i686-unknown-linux-gnu, nightly)	2m 53s
test (aarch64-unknown-linux-gnu, stable)	1m 56s
test (aarch64-unknown-linux-gnu, stable)	1m 56s
test (aarch64-unknown-linux-gnu, nightly)	1m 39s
test (aarch64-unknown-linux-gnu, nightly)	1m 39s
test (armv7-unknown-linux-gnueabihf, stable)	1m 32s
test (armv7-unknown-linux-gnueabihf, stable)	1m 32s
test (armv7-unknown-linux-gnueabihf, nightly)	1m 36s
test (armv7-unknown-linux-gnueabihf, nightly)	1m 36s
test (riscv64gc-unknown-linux-gnu, stable)	1m 37s
test (riscv64gc-unknown-linux-gnu, stable)	1m 37s
test (riscv64gc-unknown-linux-gnu, nightly)	1m 31s
test (riscv64gc-unknown-linux-gnu, nightly)	1m 31s
test (s390x-unknown-linux-gnu, stable)	1m 36s
test (s390x-unknown-linux-gnu, stable)	1m 36s
test (s390x-unknown-linux-gnu, nightly)	1m 38s
test (s390x-unknown-linux-gnu, nightly)	1m 38s
test (x86_64-apple-darwin, stable)	3m 3s
test (x86_64-apple-darwin, stable)	3m 3s
test (x86_64-apple-darwin, nightly)	2m 15s
test (x86_64-apple-darwin, nightly)	2m 15s
test (aarch64-apple-darwin, stable)	1m 25s
test (aarch64-apple-darwin, stable)	1m 25s
test (aarch64-apple-darwin, nightly)	1m 51s
test (aarch64-apple-darwin, nightly)	1m 51s
	1h 11m 2s

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