warning: not reporting region error due to nll
  --> $DIR/regions-close-object-into-object-4.rs:20:5
   |
LL |     box B(&*v) as Box<X> //~ ERROR cannot infer
   |     ^^^^^^^^^^^^^^^^^^^^

warning: not reporting region error due to nll
  --> $DIR/regions-close-object-into-object-4.rs:20:11
   |
LL |     box B(&*v) as Box<X> //~ ERROR cannot infer
   |           ^^^

warning: not reporting region error due to nll
  --> $DIR/regions-close-object-into-object-4.rs:20:9
   |
LL |     box B(&*v) as Box<X> //~ ERROR cannot infer
   |         ^

warning: not reporting region error due to nll
  --> $DIR/regions-close-object-into-object-4.rs:20:9
   |
LL |     box B(&*v) as Box<X> //~ ERROR cannot infer
   |         ^^^^^^

warning: not reporting region error due to nll
  --> $DIR/regions-close-object-into-object-4.rs:20:5
   |
LL |     box B(&*v) as Box<X> //~ ERROR cannot infer
   |     ^^^^^^^^^^

error: unsatisfied lifetime constraints
  --> $DIR/regions-close-object-into-object-4.rs:19:51
   |
LL |   fn i<'a, T, U>(v: Box<A<U>+'a>) -> Box<X+'static> {
   |  ______--___________________________________________^
   | |      |
   | |      lifetime `'a` defined here
LL | |     box B(&*v) as Box<X> //~ ERROR cannot infer
LL | | }
   | |_^ return requires that `'a` must outlive `'static`

error[E0310]: the parameter type `U` may not live long enough
  --> $DIR/regions-close-object-into-object-4.rs:20:5
   |
LL |     box B(&*v) as Box<X> //~ ERROR cannot infer
   |     ^^^^^^^^^^
   |
   = help: consider adding an explicit lifetime bound `U: 'static`...

error[E0310]: the parameter type `U` may not live long enough
  --> $DIR/regions-close-object-into-object-4.rs:20:9
   |
LL |     box B(&*v) as Box<X> //~ ERROR cannot infer
   |         ^^^^^^
   |
   = help: consider adding an explicit lifetime bound `U: 'static`...

error[E0597]: `*v` does not live long enough
  --> $DIR/regions-close-object-into-object-4.rs:20:11
   |
LL |     box B(&*v) as Box<X> //~ ERROR cannot infer
   |           ^^^ borrowed value does not live long enough
LL | }
   | - `*v` dropped here while still borrowed
   |
   = note: borrowed value must be valid for the static lifetime...

error: aborting due to 4 previous errors

Some errors occurred: E0310, E0597.
For more information about an error, try `rustc --explain E0310`.