{"ast_node_type":"variable","tokens":[{"end":94,"kind":"keyword","start":0,"text":"let"}]}
        let web_link = Url::parse(&format!("https://doc.rust-lang.org/{channel}/core/")).ok();
    if let Definition::BuiltinType(..) = def {
        let system_link = system_doc.and_then(|it| it.join("core/").ok());