| error[E0033]: type `Box<(dyn MyTrait + 'static)>` cannot be dereferenced | |
| --> $DIR/issue-4972.rs:13:25 | |
| | | |
| LL | TraitWrapper::A(box ref map) => map, | |
| | ^^^^^^^^^^^ type `Box<(dyn MyTrait + 'static)>` cannot be dereferenced | |
| error: aborting due to 1 previous error | |
| For more information about this error, try `rustc --explain E0033`. |