Rust

Merge branch 'main' into release/v20.3.5 #210

Job	Run time
build-and-test (msrv)	3m 27s
fmt	14s
build-and-test (latest)	3m 7s
publish-dry-run (macos-latest, aarch64-apple-darwin, --feature-powerset) / publish-dry-run	3m 23s
publish-dry-run (macos-latest, x86_64-apple-darwin, --feature-powerset) / publish-dry-run	3m 39s
publish-dry-run (ubuntu-latest, x86_64-unknown-linux-gnu, --feature-powerset) / publish-dry-run	1m 41s
publish-dry-run (windows-latest-8-cores, x86_64-pc-windows-msvc, --features opt --ignore-unknown-... / publish-dry-run	3m 25s
publish-dry-run (windows-latest-8-cores, x86_64-pc-windows-msvc) / publish-dry-run	3m 20s
publish-dry-run (ubuntu-latest, aarch64-unknown-linux-gnu, --feature-powerset) / publish-dry-run	2m 18s
complete	1s
	24m 35s

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