{"ast_node_type":"variable","tokens":[{"end":98,"kind":"keyword","start":0,"text":"let"}]}
                    let LintExpectationId::Unstable { lint_index: None, attr_id: _ } = unstable_id
                Some((Level::Expect, Some(unstable_id))) if let Some(hir_id) = source_hir_id => {
                    else {