Rust

Add `Context::debug_text` #8782

Job	Run time
android	24s
Format + check + test	59s
Check wasm32 + wasm-bindgen	47s
cargo-deny aarch64-apple-darwin	42s
Check Windows	1m 19s
cargo-deny aarch64-linux-android	40s
cargo-deny i686-pc-windows-gnu	39s
cargo-deny i686-pc-windows-msvc	39s
cargo-deny i686-unknown-linux-gnu	46s
cargo-deny wasm32-unknown-unknown	43s
cargo-deny x86_64-apple-darwin	38s
cargo-deny x86_64-pc-windows-gnu	42s
cargo-deny x86_64-pc-windows-msvc	39s
cargo-deny x86_64-unknown-linux-gnu	41s
cargo-deny x86_64-unknown-linux-musl	39s
cargo-deny x86_64-unknown-redox	39s
	11m 36s

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