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error[E0495]: cannot infer an appropriate lifetime for lifetime parameter `'d` due to conflicting requirements
  --> $DIR/normalization-bounds-error.rs:13:1
   |
LL | fn visit_seq<'d, 'a: 'd>() -> <&'a () as Visitor<'d>>::Value {}
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
note: first, the lifetime cannot outlive the lifetime 'd as defined on the function body at 13:14...
  --> $DIR/normalization-bounds-error.rs:13:14
   |
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 on the function body at 13:18...
  --> $DIR/normalization-bounds-error.rs:13:18
   |
LL | fn visit_seq<'d, 'a: 'd>() -> <&'a () as Visitor<'d>>::Value {}
   |                  ^^
   = note: ...so that the types are compatible:
           expected Visitor<'d>
              found Visitor<'_>

error: aborting due to previous error

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