error[E0560]: struct `S` has no field named `0b1`
  --> $DIR/numeric-fields.rs:4:15
   |
LL | struct S(u8, u16);
   |        - `S` defined here
...
LL |     let s = S{0b1: 10, 0: 11};
   |               ^^^ field does not exist
   |
help: `S` is a tuple struct, use the appropriate syntax
   |
LL -     let s = S{0b1: 10, 0: 11};
LL +     let s = S(/* u8 */, /* u16 */);
   |

error[E0026]: struct `S` does not have a field named `0x1`
  --> $DIR/numeric-fields.rs:7:17
   |
LL |         S{0: a, 0x1: b, ..} => {}
   |                 ^^^
   |                 |
   |                 struct `S` does not have this field
   |                 help: `S` has a field named `1`

error: aborting due to 2 previous errors

Some errors have detailed explanations: E0026, E0560.
For more information about an error, try `rustc --explain E0026`.