Rust

Add "Looking for maintainer" to `egui_plot` docs and README.md #11782

Job	Run time
Format + check + test	5m 42s
android	36s
cargo-deny aarch64-apple-darwin	38s
Check wasm32 + wasm-bindgen	3m 1s
cargo-deny aarch64-linux-android	40s
Check Windows	1m 37s
cargo-deny i686-pc-windows-gnu	40s
cargo-deny i686-pc-windows-msvc	39s
cargo-deny i686-unknown-linux-gnu	39s
cargo-deny wasm32-unknown-unknown	38s
cargo-deny x86_64-apple-darwin	38s
cargo-deny x86_64-pc-windows-gnu	39s
cargo-deny x86_64-pc-windows-msvc	39s
cargo-deny x86_64-unknown-linux-gnu	36s
cargo-deny x86_64-unknown-linux-musl	37s
cargo-deny x86_64-unknown-redox	37s
	18m 36s

Provide feedback