{"ast_node_type":"other","tokens":[{"end":70,"kind":"keyword","start":0,"text":"err.span_label(self.mk_sp(start,"}]}
            err.span_label(self.mk_sp(start, start + BytePos(2)), msg)
        if let Some((nested_open_idx, nested_close_idx)) = last_nested_block_comment_idxs {
                .span_label(