error[E0637]: `&` without an explicit lifetime name cannot be used here
  --> $DIR/issue-65285-incorrect-explicit-lifetime-name-needed.rs:5:37
   |
LL | fn should_error<T>() where T : Into<&u32> {}
   |                                     ^ explicit lifetime name needed here

error[E0106]: missing lifetime specifier
  --> $DIR/issue-65285-incorrect-explicit-lifetime-name-needed.rs:9:21
   |
LL |     fn foo<'b, L: X<&'b Nested<K>>>();
   |                     ^ expected named lifetime parameter
   |
note: these named lifetimes are available to use
  --> $DIR/issue-65285-incorrect-explicit-lifetime-name-needed.rs:8:9
   |
LL | trait X<'a, K: 'a> {
   |         ^^
LL |     fn foo<'b, L: X<&'b Nested<K>>>();
   |            ^^
help: consider using one of the available lifetimes here
   |
LL |     fn foo<'b, L: X<'lifetime, &'b Nested<K>>>();
   |                     ^^^^^^^^^^

error[E0106]: missing lifetime specifier
  --> $DIR/issue-65285-incorrect-explicit-lifetime-name-needed.rs:13:17
   |
LL | fn bar<'b, L: X<&'b Nested<i32>>>(){}
   |                 ^ expected named lifetime parameter
   |
help: consider using the `'b` lifetime
   |
LL | fn bar<'b, L: X<'b, &'b Nested<i32>>>(){}
   |                 ^^^

error: aborting due to 3 previous errors

Some errors have detailed explanations: E0106, E0637.
For more information about an error, try `rustc --explain E0106`.