Rust #691

Job	Run time
rustfmt	8s
Test stable ubuntu-latest --no-default-features	2m 18s
Test stable ubuntu-latest	3m 0s
Test stable ubuntu-latest --all-features	3m 28s
Test stable macos-latest --no-default-features	4m 45s
Test stable macos-latest	7m 19s
Test stable macos-latest --all-features	4m 46s
Test stable windows-latest --no-default-features	6m 31s
Test stable windows-latest	9m 39s
Test stable windows-latest --all-features	7m 18s
Test beta ubuntu-latest --all-features	3m 32s
Test nightly ubuntu-latest --all-features	3m 55s
Release x86_64-unknown-linux-gnu	4m 10s
Release aarch64-unknown-linux-gnu	3m 25s
Release armv7-unknown-linux-gnueabihf	3m 28s
Release arm-unknown-linux-gnueabihf	3m 33s
Release x86_64-apple-darwin	3m 56s
Release aarch64-apple-darwin	3m 35s
Release x86_64-pc-windows-msvc	6m 5s
	1h 24m 51s

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