error: arbitrary expressions aren't allowed in patterns --> $DIR/patkind-litrange-no-expr.rs:30:13 | LL | Arith = 1 + 1, //~ ERROR arbitrary expressions aren't allowed in patterns | ^^^^^ error[E0029]: only char and numeric types are allowed in range patterns --> $DIR/patkind-litrange-no-expr.rs:30:13 | LL | Arith = 1 + 1, //~ ERROR arbitrary expressions aren't allowed in patterns | ^^^^^ ranges require char or numeric types | = note: start type: {integer} = note: end type: {integer} error: aborting due to 2 previous errors For more information about this error, try `rustc --explain E0029`.