Rust

Update scroll_area.rs #1034

Job	Run time
Check wasm32+atomics	2m 11s
Format + check	2m 31s
Check wasm32 + wasm-bindgen	2m 52s
ios	26s
cargo-deny aarch64-linux-android	36s
cargo-deny aarch64-apple-darwin	34s
cargo-deny wasm32-unknown-unknown	37s
cargo-deny i686-pc-windows-msvc	37s
cargo-deny i686-pc-windows-gnu	37s
cargo-deny i686-unknown-linux-gnu	36s
cargo-deny x86_64-unknown-linux-musl	34s
cargo-deny x86_64-unknown-linux-gnu	37s
Run tests	2m 32s
cargo-deny x86_64-unknown-redox	42s
cargo-deny x86_64-pc-windows-gnu	35s
android	26s
cargo-deny x86_64-pc-windows-msvc	35s
cargo-deny x86_64-apple-darwin	39s
Check Windows	1m 47s
	20m 4s

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