warning: not reporting region error due to -Znll
  --> $DIR/projection-implied-bounds.rs:45:36
   |
LL |     twice(value, |value_ref, item| invoke2(value_ref, item));
   |                                    ^^^^^^^

error[E0310]: the parameter type `T` may not live long enough
  --> $DIR/projection-implied-bounds.rs:45:18
   |
LL |     twice(value, |value_ref, item| invoke2(value_ref, item));
   |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = help: consider adding an explicit lifetime bound `T: 'static`...

error: aborting due to previous error

If you want more information on this error, try using "rustc --explain E0310"