{"ast_node_type":"import","tokens":[{"end":97,"kind":"keyword","start":0,"text":"trace!(\"local"}]}
                trace!("local {:?} can't be propagated because it's used: {:?}", local, context);
            | MutatingUse(MutatingUseContext::RawBorrow) => {
                self.can_const_prop[local] = ConstPropMode::NoPropagation;