error: lifetime may not live long enough
  --> $DIR/static-return-lifetime-infered.rs:6:35
   |
LL |     fn iter_values_anon(&self) -> impl Iterator<Item=u32> {
   |                         -         ^^^^^^^^^^^^^^^^^^^^^^^ opaque type requires that `'1` must outlive `'static`
   |                         |
   |                         let's call the lifetime of this reference `'1`
   |
help: to allow this `impl Trait` to capture borrowed data with lifetime `'1`, add `'_` as a bound
   |
LL |     fn iter_values_anon(&self) -> impl Iterator<Item=u32> + '_ {
   |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: lifetime may not live long enough
  --> $DIR/static-return-lifetime-infered.rs:9:37
   |
LL |     fn iter_values<'a>(&'a self) -> impl Iterator<Item=u32> {
   |                    --               ^^^^^^^^^^^^^^^^^^^^^^^ opaque type requires that `'a` must outlive `'static`
   |                    |
   |                    lifetime `'a` defined here
   |
   = help: consider replacing `'a` with `'static`
help: to allow this `impl Trait` to capture borrowed data with lifetime `'a`, add `'a` as a bound
   |
LL |     fn iter_values<'a>(&'a self) -> impl Iterator<Item=u32> + 'a {
   |                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: aborting due to 2 previous errors