Rust

feat: make the hash type generic #194

Job	Run time
linting	14s
cross-testing (stable, ubuntu-latest, default)	20s
build	24s
cross-testing (stable, ubuntu-latest, with-serde)	17s
cross-testing (stable, windows-latest, default)	1m 22s
cross-testing (stable, windows-latest, with-serde)	1m 22s
cross-testing (stable, macos-latest, default)	18s
cross-testing (stable, macos-latest, with-serde)	24s
cross-testing (nightly, ubuntu-latest, default)	21s
cross-testing (nightly, ubuntu-latest, with-serde)	19s
cross-testing (nightly, windows-latest, default)	1m 15s
cross-testing (nightly, windows-latest, with-serde)	1m 10s
cross-testing (nightly, macos-latest, default)	25s
cross-testing (nightly, macos-latest, with-serde)	21s
cross-testing (1.41, ubuntu-latest, default)	18s
cross-testing (1.41, ubuntu-latest, with-serde)	26s
cross-testing (1.41, windows-latest, default)	1m 24s
cross-testing (1.41, windows-latest, with-serde)	1m 16s
cross-testing (1.41, macos-latest, default)	19s
cross-testing (1.41, macos-latest, with-serde)	20s
	12m 35s

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