error[E0309]: the parameter type `T` may not live long enough
  --> $DIR/regions-struct-not-wf.rs:13:16
   |
LL | impl<'a, T> Trait<'a, T> for usize {
   |      -- the parameter type `T` must be valid for the lifetime `'a` as defined here...
LL |     type Out = &'a T;
   |                ^^^^^ ...so that the reference type `&'a T` does not outlive the data it points at
   |
help: consider adding an explicit lifetime bound
   |
LL | impl<'a, T: 'a> Trait<'a, T> for usize {
   |           ++++

error[E0309]: the parameter type `T` may not live long enough
  --> $DIR/regions-struct-not-wf.rs:21:16
   |
LL | impl<'a, T> Trait<'a, T> for u32 {
   |      -- the parameter type `T` must be valid for the lifetime `'a` as defined here...
LL |     type Out = RefOk<'a, T>;
   |                ^^^^^^^^^^^^ ...so that the type `T` will meet its required lifetime bounds...
   |
note: ...that is required by this bound
  --> $DIR/regions-struct-not-wf.rs:16:20
   |
LL | struct RefOk<'a, T:'a> {
   |                    ^^
help: consider adding an explicit lifetime bound
   |
LL | impl<'a, T: 'a> Trait<'a, T> for u32 {
   |           ++++

error[E0491]: in type `&'a &'b T`, reference has a longer lifetime than the data it references
  --> $DIR/regions-struct-not-wf.rs:25:16
   |
LL |     type Out = &'a &'b T;
   |                ^^^^^^^^^
   |
note: the pointer is valid for the lifetime `'a` as defined here
  --> $DIR/regions-struct-not-wf.rs:24:6
   |
LL | impl<'a, 'b, T> Trait1<'a, 'b, T> for u32 {
   |      ^^
note: but the referenced data is only valid for the lifetime `'b` as defined here
  --> $DIR/regions-struct-not-wf.rs:24:10
   |
LL | impl<'a, 'b, T> Trait1<'a, 'b, T> for u32 {
   |          ^^

error: aborting due to 3 previous errors

Some errors have detailed explanations: E0309, E0491.
For more information about an error, try `rustc --explain E0309`.