{"ast_node_type":"other","tokens":[{"end":100,"kind":"keyword","start":0,"text":"Rvalue::NullaryOp(NullOp::UbChecks,"}]}
            Rvalue::NullaryOp(NullOp::UbChecks, _) => Some((tcx.sess.ub_checks() as u128, targets)),
        match rvalue {
            Rvalue::Use(Operand::Constant(constant)) => {