error[E0308]: mismatched types
  --> $DIR/variance-associated-types2.rs:13:42
   |
LL |     let _: Box<dyn Foo<Bar = &'a u32>> = make();
   |                                          ^^^^^^ lifetime mismatch
   |
   = note: expected trait object `dyn Foo<Bar = &'a u32>`
              found trait object `dyn Foo<Bar = &'static u32>`
note: the lifetime `'a` as defined here...
  --> $DIR/variance-associated-types2.rs:12:9
   |
LL | fn take<'a>(_: &'a u32) {
   |         ^^
   = note: ...does not necessarily outlive the static lifetime

error: aborting due to previous error

For more information about this error, try `rustc --explain E0308`.