Rust

Improve demo #7652

Job	Run time
Check wasm32 + wasm-bindgen	3m 33s
Format + check + test	4m 54s
cargo-deny aarch64-apple-darwin	42s
android	34s
Check Windows	1m 36s
cargo-deny aarch64-linux-android	59s
cargo-deny i686-pc-windows-gnu	54s
cargo-deny i686-pc-windows-msvc	53s
cargo-deny i686-unknown-linux-gnu	56s
cargo-deny wasm32-unknown-unknown	53s
cargo-deny x86_64-apple-darwin	44s
cargo-deny x86_64-pc-windows-gnu	49s
cargo-deny x86_64-pc-windows-msvc	43s
cargo-deny x86_64-unknown-linux-gnu	56s
cargo-deny x86_64-unknown-linux-musl	39s
cargo-deny x86_64-unknown-redox	1m 29s
	21m 14s

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