error: lifetime may not live long enough
  --> $DIR/regions-close-object-into-object-2.rs:10:5
   |
LL | fn g<'a, T: 'static>(v: Box<dyn A<T> + 'a>) -> Box<dyn X + 'static> {
   |      -- lifetime `'a` defined here
LL |     box B(&*v) as Box<dyn X>
   |     ^^^^^^^^^^^^^^^^^^^^^^^^ returning this value requires that `'a` must outlive `'static`
   |
   = help: consider replacing `'a` with `'static`

error[E0515]: cannot return value referencing local data `*v`
  --> $DIR/regions-close-object-into-object-2.rs:10:5
   |
LL |     box B(&*v) as Box<dyn X>
   |     ^^^^^^---^^^^^^^^^^^^^^^
   |     |     |
   |     |     `*v` is borrowed here
   |     returns a value referencing data owned by the current function

error: aborting due to 2 previous errors

For more information about this error, try `rustc --explain E0515`.