error[E0478]: lifetime bound not satisfied
  --> $DIR/lifetime-not-long-enough-suggestion-regression-test-124563.rs:19:16
   |
LL |     type Bar = BarImpl<'a, 'b, T>;
   |                ^^^^^^^^^^^^^^^^^^
   |
note: lifetime parameter instantiated with the lifetime `'a` as defined here
  --> $DIR/lifetime-not-long-enough-suggestion-regression-test-124563.rs:14:6
   |
LL | impl<'a, 'b, T> Foo for FooImpl<'a, 'b, T>
   |      ^^
note: but lifetime parameter must outlive the lifetime `'b` as defined here
  --> $DIR/lifetime-not-long-enough-suggestion-regression-test-124563.rs:14:10
   |
LL | impl<'a, 'b, T> Foo for FooImpl<'a, 'b, T>
   |          ^^

error: lifetime may not live long enough
  --> $DIR/lifetime-not-long-enough-suggestion-regression-test-124563.rs:23:21
   |
LL |         self.enter_scope(|ctx| {
   |                           ---
   |                           |
   |                           has type `&'1 mut FooImpl<'_, '_, T>`
   |                           has type `&mut FooImpl<'2, '_, T>`
LL |             BarImpl(ctx);
   |                     ^^^ this usage requires that `'1` must outlive `'2`

error: lifetime may not live long enough
  --> $DIR/lifetime-not-long-enough-suggestion-regression-test-124563.rs:22:9
   |
LL |   impl<'a, 'b, T> Foo for FooImpl<'a, 'b, T>
   |        --  -- lifetime `'b` defined here
   |        |
   |        lifetime `'a` defined here
...
LL | /         self.enter_scope(|ctx| {
LL | |             BarImpl(ctx);
LL | |         });
   | |__________^ argument requires that `'a` must outlive `'b`
   |
   = help: consider adding the following bound: `'a: 'b`
   = note: requirement occurs because of a mutable reference to `FooImpl<'_, '_, T>`
   = note: mutable references are invariant over their type parameter
   = help: see <https://doc.rust-lang.org/nomicon/subtyping.html> for more information about variance

error: aborting due to 3 previous errors

For more information about this error, try `rustc --explain E0478`.