error: lifetime may not live long enough
  --> $DIR/implied-region-constraints.rs:17:56
   |
LL | fn _bad_st<'a, 'b, T>(x: St<'a, 'b, T>)
   |            --  -- lifetime `'b` defined here
   |            |
   |            lifetime `'a` defined here
...
LL |     let _failure_proves_not_implied_outlives_region_b: &'b T = &x.f0;
   |                                                        ^^^^^ type annotation requires that `'a` must outlive `'b`
   |
   = help: consider adding the following bound: `'a: 'b`

error: lifetime may not live long enough
  --> $DIR/implied-region-constraints.rs:38:64
   |
LL | fn _bad_en7<'a, 'b, T>(x: En7<'a, 'b, T>)
   |             --  -- lifetime `'b` defined here
   |             |
   |             lifetime `'a` defined here
...
LL |             let _failure_proves_not_implied_outlives_region_b: &'b T = &x;
   |                                                                ^^^^^ type annotation requires that `'a` must outlive `'b`
   |
   = help: consider adding the following bound: `'a: 'b`

error: aborting due to 2 previous errors