Rust

Reintroduce debug_assert for widgets that change layer_id #12921

Job	Run time
Check wasm32 + wasm-bindgen	2m 23s
android	26s
cargo-deny aarch64-apple-darwin	34s
Check wasm32+atomics	1m 21s
cargo-deny aarch64-linux-android	40s
Format + check + test	2m 51s
cargo-deny i686-pc-windows-gnu	35s
cargo-deny i686-pc-windows-msvc	39s
ios	20s
cargo-deny i686-unknown-linux-gnu	38s
Check Windows	2m 20s
cargo-deny wasm32-unknown-unknown	38s
cargo-deny x86_64-apple-darwin	38s
cargo-deny x86_64-pc-windows-gnu	36s
cargo-deny x86_64-pc-windows-msvc	38s
cargo-deny x86_64-unknown-linux-gnu	37s
cargo-deny x86_64-unknown-linux-musl	35s
cargo-deny x86_64-unknown-redox	41s
	17m 10s

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