{"ast_node_type":"other","tokens":[{"end":44,"kind":"keyword","start":0,"text":"Err(ReceiverValidityError::DoesNotDeref)"}]}
    Err(ReceiverValidityError::DoesNotDeref)
    debug!("receiver_is_valid: type `{:?}` does not deref to `{:?}`", receiver_ty, self_ty);
}