error[E0594]: cannot assign to data in a `&` reference
  --> $DIR/enum.rs:19:5
   |
LL |     let Wrap(x) = &Wrap(3);
   |              - help: consider changing this to be a mutable reference: `&mut`
LL |     *x += 1; //~ ERROR cannot assign to immutable
   |     ^^^^^^^

error[E0594]: cannot assign to data in a `&` reference
  --> $DIR/enum.rs:23:9
   |
LL |     if let Some(x) = &Some(3) {
   |                 - help: consider changing this to be a mutable reference: `&mut`
LL |         *x += 1; //~ ERROR cannot assign to immutable
   |         ^^^^^^^

error[E0594]: cannot assign to data in a `&` reference
  --> $DIR/enum.rs:29:9
   |
LL |     while let Some(x) = &Some(3) {
   |                    - help: consider changing this to be a mutable reference: `&mut`
LL |         *x += 1; //~ ERROR cannot assign to immutable
   |         ^^^^^^^

error: aborting due to 3 previous errors

For more information about this error, try `rustc --explain E0594`.