Rust

feat: make the hash type generic #197

Job	Run time
build	34s
cross-testing (stable, ubuntu-latest, default)	19s
cross-testing (stable, ubuntu-latest, with-serde)	18s
linting	19s
cross-testing (stable, windows-latest, default)	2m 3s
cross-testing (stable, windows-latest, with-serde)	1m 54s
cross-testing (stable, macos-latest, default)	24s
cross-testing (stable, macos-latest, with-serde)	18s
cross-testing (nightly, ubuntu-latest, default)	19s
cross-testing (nightly, ubuntu-latest, with-serde)	23s
cross-testing (nightly, windows-latest, default)	2m 6s
cross-testing (nightly, windows-latest, with-serde)	1m 59s
cross-testing (nightly, macos-latest, default)	17s
cross-testing (nightly, macos-latest, with-serde)	20s
cross-testing (1.41, ubuntu-latest, default)	18s
cross-testing (1.41, ubuntu-latest, with-serde)	21s
cross-testing (1.41, windows-latest, default)	1m 8s
cross-testing (1.41, windows-latest, with-serde)	1m 46s
cross-testing (1.41, macos-latest, default)	28s
cross-testing (1.41, macos-latest, with-serde)	37s
	16m 11s

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