Rust

Bump version to 20.0.1 #4203

Job	Run time
fmt	10s
rust-analyzer-compat	3m 9s
build-and-test (ubuntu-latest, x86_64-unknown-linux-gnu)	5m 11s
build-and-test (ubuntu-latest, aarch64-unknown-linux-gnu)	4m 17s
build-and-test (macos-latest, x86_64-apple-darwin)	25m 0s
build-and-test (macos-latest, aarch64-apple-darwin)	16m 38s
build-and-test (windows-latest-8-cores, x86_64-pc-windows-msvc)	7m 54s
publish-dry-run (macos-latest, aarch64-apple-darwin, --feature-powerset) / publish-dry-run	31m 58s
publish-dry-run (macos-latest, x86_64-apple-darwin, --feature-powerset) / publish-dry-run	35m 33s
publish-dry-run (ubuntu-latest, aarch64-unknown-linux-gnu, --feature-powerset) / publish-dry-run	20m 17s
publish-dry-run (ubuntu-latest, x86_64-unknown-linux-gnu, --feature-powerset) / publish-dry-run	13m 41s
publish-dry-run (windows-latest-8-cores, x86_64-pc-windows-msvc, --features opt --ignore-unknown-... / publish-dry-run	7m 30s
publish-dry-run (windows-latest-8-cores, x86_64-pc-windows-msvc) / publish-dry-run	6m 35s
complete	1s
	2h 57m 54s

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