error[E0277]: `Helper<'a, T>` is not an iterator
  --> $DIR/inherent-bound-in-probe.rs:39:21
   |
LL |     type IntoIter = Helper<'a, T>;
   |                     ^^^^^^^^^^^^^ `Helper<'a, T>` is not an iterator
   |
help: the trait `Iterator` is not implemented for `Helper<'a, T>`
  --> $DIR/inherent-bound-in-probe.rs:15:1
   |
LL | struct Helper<'a, T>
   | ^^^^^^^^^^^^^^^^^^^^
note: required by a bound in `std::iter::IntoIterator::IntoIter`
  --> $SRC_DIR/core/src/iter/traits/collect.rs:LL:COL

error[E0275]: overflow evaluating the requirement `&_: IntoIterator`
  --> $DIR/inherent-bound-in-probe.rs:43:9
   |
LL |         Helper::new(&self.0)
   |         ^^^^^^
   |
   = help: consider increasing the recursion limit by adding a `#![recursion_limit = "256"]` attribute to your crate (`inherent_bound_in_probe`)
note: required for `&BitReaderWrapper<_>` to implement `IntoIterator`
  --> $DIR/inherent-bound-in-probe.rs:33:13
   |
LL | impl<'a, T> IntoIterator for &'a BitReaderWrapper<T>
   |             ^^^^^^^^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^
LL | where
LL |     &'a T: IntoIterator<Item = &'a u8>,
   |                         ------------- unsatisfied trait bound introduced here
   = note: 126 redundant requirements hidden
   = note: required for `&BitReaderWrapper<BitReaderWrapper<BitReaderWrapper<...>>>` to implement `IntoIterator`
note: required by a bound in `Helper`
  --> $DIR/inherent-bound-in-probe.rs:17:12
   |
LL | struct Helper<'a, T>
   |        ------ required by a bound in this struct
LL | where
LL |     &'a T: IntoIterator<Item = &'a u8>,
   |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `Helper`
   = note: the full name for the type has been written to '$TEST_BUILD_DIR/inherent-bound-in-probe.long-type-$LONG_TYPE_HASH.txt'
   = note: consider using `--verbose` to print the full type name to the console

error: aborting due to 2 previous errors

Some errors have detailed explanations: E0275, E0277.
For more information about an error, try `rustc --explain E0275`.