Rust

Remove some clones #84

Job	Run time
android	22s
Format + check + test	4m 52s
Check wasm32 + wasm-bindgen	4m 17s
cargo-deny aarch64-apple-darwin	42s
Check Windows	1m 26s
cargo-deny aarch64-linux-android	1m 3s
cargo-deny i686-pc-windows-gnu	39s
cargo-deny i686-pc-windows-msvc	55s
cargo-deny i686-unknown-linux-gnu	49s
cargo-deny wasm32-unknown-unknown	43s
cargo-deny x86_64-apple-darwin	40s
cargo-deny x86_64-pc-windows-gnu	1m 8s
cargo-deny x86_64-pc-windows-msvc	40s
cargo-deny x86_64-unknown-linux-gnu	49s
cargo-deny x86_64-unknown-linux-musl	53s
cargo-deny x86_64-unknown-redox	55s
	20m 53s

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