{"ast_node_type":"variable","tokens":[{"end":40,"kind":"keyword","start":0,"text":"let"}]}
            let did: DefId = did.into();
        if cfg!(debug_assertions) && !rustc_feature::is_valid_for_get_attr(attr) {
            bug!("get_attr: unexpected called with DefId `{:?}`, attr `{:?}`", did, attr);