{"ast_node_type":"other","tokens":[{"end":97,"kind":"keyword","start":0,"text":"span_err(slug.span().unwrap(),"}]}
                    span_err(slug.span().unwrap(), "diagnostic slug and crate name do not match")
                {
                        .note(format!("slug is `{slug_name}` but the crate name is `{crate_name}`"))