syntax_data: {"ast_node_type":"other","tokens":[{"end":55,"kind":"keyword","start":0,"text":"#[allow(rustc::diagnostic_outside_of_impl)]"}]}
source_snippet:             #[allow(rustc::diagnostic_outside_of_impl)]
context_before:         if err.code.is_none() {
context_after:             err.code(E0658);