Rust

Add tests for UDTs with tuple fields. #3541

Job	Run time
build-fuzz	2m 12s
check-git-rev-deps	10s
cargo-deny (advisories)	7m 58s
build-and-test (ubuntu-latest, x86_64-unknown-linux-gnu)	2m 30s
cargo-deny (bans licenses sources)	5m 20s
docs	3m 36s
fmt	7s
build-and-test (ubuntu-latest, aarch64-unknown-linux-gnu, true)	2m 26s
build-and-test (macos-latest, x86_64-apple-darwin)	9m 22s
publish-dry-run	0s
build-and-test (macos-latest, aarch64-apple-darwin)	5m 56s
rust-analyzer-compat	3m 38s
build-and-test (windows-latest, x86_64-pc-windows-msvc)	5m 38s
complete	2s
	48m 55s

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