enable `missing_assert_message` lint #12962

Job	Run time
Check wasm32 + wasm-bindgen	2m 33s
android	21s
cargo-deny aarch64-apple-darwin	37s
cargo-deny aarch64-linux-android	40s
Check wasm32+atomics	1m 18s
cargo-deny i686-pc-windows-gnu	39s
Format + check + test	5m 34s
ios	20s
cargo-deny i686-pc-windows-msvc	37s
cargo-deny i686-unknown-linux-gnu	40s
Check Windows	2m 21s
cargo-deny wasm32-unknown-unknown	35s
cargo-deny x86_64-apple-darwin	38s
cargo-deny x86_64-pc-windows-gnu	39s
cargo-deny x86_64-pc-windows-msvc	37s
cargo-deny x86_64-unknown-linux-gnu	35s
cargo-deny x86_64-unknown-linux-musl	35s
cargo-deny x86_64-unknown-redox	36s
	19m 55s

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