Rust

Add support for `generic-array` crate #228

Job	Run time
build_test (ubuntu-latest, 1.47.0)	1m 59s
build_test (ubuntu-latest, stable)	26s
build_test (ubuntu-latest, beta)	32s
build_test (ubuntu-latest, nightly)	30s
build_test (nightly, windows-latest)	1m 26s
	4m 53s

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