error[E0657]: `impl Trait` can only capture lifetimes bound at the fn or impl level
  --> $DIR/implicit-capture-late.rs:10:36
   |
LL | fn foo(x: Vec<i32>) -> Box<dyn for<'a> Deref<Target = impl ?Sized>> {
   |                                    ^^

error: aborting due to 1 previous error

For more information about this error, try `rustc --explain E0657`.