error[E0284]: type annotations needed: cannot satisfy `<usize as SliceIndex<[u8]>>::Output == _`
  --> $DIR/ub-nonnull.rs:19:30
   |
LL |     let out_of_bounds_ptr = &ptr[255];
   |                              ^^^^^^^^ cannot satisfy `<usize as SliceIndex<[u8]>>::Output == _`

error: aborting due to 1 previous error

For more information about this error, try `rustc --explain E0284`.