error[E0495]: cannot infer an appropriate lifetime for lifetime parameter `'d` due to conflicting requirements
  --> $DIR/normalization-bounds-error.rs:12:31
   |
LL | fn visit_seq<'d, 'a: 'd>() -> <&'a () as Visitor<'d>>::Value {}
   |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
note: first, the lifetime cannot outlive the lifetime `'d` as defined here...
  --> $DIR/normalization-bounds-error.rs:12:14
   |
LL | fn visit_seq<'d, 'a: 'd>() -> <&'a () as Visitor<'d>>::Value {}
   |              ^^
note: ...but the lifetime must also be valid for the lifetime `'a` as defined here...
  --> $DIR/normalization-bounds-error.rs:12:18
   |
LL | fn visit_seq<'d, 'a: 'd>() -> <&'a () as Visitor<'d>>::Value {}
   |                  ^^
note: ...so that the types are compatible
  --> $DIR/normalization-bounds-error.rs:12:31
   |
LL | fn visit_seq<'d, 'a: 'd>() -> <&'a () as Visitor<'d>>::Value {}
   |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   = note: expected `Visitor<'d>`
              found `Visitor<'_>`

error: lifetime may not live long enough
  --> $DIR/normalization-bounds-error.rs:12:1
   |
LL | fn visit_seq<'d, 'a: 'd>() -> <&'a () as Visitor<'d>>::Value {}
   | ^^^^^^^^^^^^^--^^--^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   | |            |   |
   | |            |   lifetime `'a` defined here
   | |            lifetime `'d` defined here
   | requires that `'d` must outlive `'a`
   |
   = help: consider adding the following bound: `'d: 'a`

error: aborting due to 2 previous errors

For more information about this error, try `rustc --explain E0495`.