Rust

Bump version to 20.4.0 (#1237) #3863

Job	Run time
fmt	14s
cargo-deny (advisories)	4m 57s
build-fuzz	1m 22s
cargo-deny (bans licenses sources)	5m 0s
check-git-rev-deps	21s
build-and-test (msrv, ubuntu-latest, x86_64-unknown-linux-gnu)	9m 17s
build-and-test (msrv, ubuntu-latest, aarch64-unknown-linux-gnu, true)	5m 47s
docs	3m 19s
readme	1m 8s
build-and-test (msrv, macos-latest, x86_64-apple-darwin)	25m 35s
build-and-test (msrv, macos-latest, aarch64-apple-darwin)	17m 21s
rust-analyzer-compat	2m 8s
build-and-test (msrv, windows-latest, x86_64-pc-windows-msvc)	13m 20s
semver-checks	3m 51s
build-and-test (latest, ubuntu-latest, x86_64-unknown-linux-gnu)	8m 40s
build-and-test (latest, ubuntu-latest, aarch64-unknown-linux-gnu, true)	5m 23s
build-and-test (latest, macos-latest, x86_64-apple-darwin)	16m 7s
build-and-test (latest, macos-latest, aarch64-apple-darwin)	8m 58s
build-and-test (latest, windows-latest, x86_64-pc-windows-msvc)	13m 8s
publish-dry-run (ubuntu-latest, wasm32-unknown-unknown) / publish-dry-run	3m 27s
publish-dry-run (ubuntu-latest, x86_64-unknown-linux-gnu, --feature-powerset --exclude-features d... / publish-dry-run	4m 38s
complete	1s
	2h 34m 2s

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