{"ast_node_type":"other","tokens":[{"end":65,"kind":"keyword","start":0,"text":"DynCompatibilityViolation::SupertraitSelf(spans)"}]}
            DynCompatibilityViolation::SupertraitSelf(spans) => {
            DynCompatibilityViolation::SizedSelf(_) => "it requires `Self: Sized`".into(),
                if spans.iter().any(|sp| *sp != DUMMY_SP) {