{"ast_node_type":"other","tokens":[{"end":120,"kind":"keyword","start":0,"text":"441..530:"}]}
            441..530: exactly one generic type parameter must be marked as `#[pointee]` to derive `CoercePointee` traits
            328..439: only one type parameter can be marked as `#[pointee]` when deriving `CoercePointee` traits
            532..621: `derive(CoercePointee)` requires `T` to be marked `?Sized`