{"ast_node_type":"variable","tokens":[{"end":64,"kind":"keyword","start":0,"text":"let"}]}
        let extra_filename = dep.map(|d| &d.extra_filename[..]);
        let host_hash = dep.map(|d| d.host_hash).flatten();
        let path_kind = if dep.is_some() { PathKind::Dependency } else { PathKind::Crate };