767     type PointerMetadata: PointerMetadata;  typedef
812     fn pointer_to_metadata(ptr: *mut Self) -> Self::PointerMetadata;  in pointer_to_metadata()
892     T: ?Sized + KnownLayout<PointerMetadata = usize>,  in trailing_slice_layout()
943 pub trait PointerMetadata: Copy + Eq + Debug + Ord {  trait
972 impl PointerMetadata for () {  impl
1032     type PointerMetadata = usize;  typedef
2524         Self: KnownLayout<PointerMetadata = usize> + Immutable,  in try_ref_from_bytes_with_elems()
2645         Self: KnownLayout<PointerMetadata = usize> + Immutable,  in try_ref_from_prefix_with_elems()
2753         Self: KnownLayout<PointerMetadata = usize> + Immutable,  in try_ref_from_suffix_with_elems()
2849         Self: KnownLayout<PointerMetadata = usize> + IntoBytes,  in try_mut_from_bytes_with_elems()
2960         Self: KnownLayout<PointerMetadata = usize> + IntoBytes,  in try_mut_from_prefix_with_elems()
3060         Self: KnownLayout<PointerMetadata = usize> + IntoBytes,  in try_mut_from_suffix_with_elems()
3301     meta: Option<T::PointerMetadata>,  in try_ref_from_prefix_suffix()
3321     meta: Option<T::PointerMetadata>,  in try_mut_from_prefix_suffix()
3701         Self: KnownLayout<PointerMetadata = usize>,  in new_box_zeroed_with_elems()
4714         Self: KnownLayout<PointerMetadata = usize> + Immutable,  in ref_from_bytes_with_elems()
4813         Self: KnownLayout<PointerMetadata = usize> + Immutable,  in ref_from_prefix_with_elems()
4907         Self: KnownLayout<PointerMetadata = usize> + Immutable,  in ref_from_suffix_with_elems()
4988         Self: IntoBytes + KnownLayout<PointerMetadata = usize> + Immutable,  in mut_from_bytes_with_elems()
5078         Self: IntoBytes + KnownLayout<PointerMetadata = usize>,  in mut_from_prefix_with_elems()
5163         Self: IntoBytes + KnownLayout<PointerMetadata = usize>,  in mut_from_suffix_with_elems()
5477     meta: Option<T::PointerMetadata>,  in ref_from_prefix_suffix()
5497     meta: Option<T::PointerMetadata>,  in mut_from_prefix_suffix()