Address potential future UB by only using raw pointers

rust-lang/unsafe-code-guidelines#346

src/raw/mod.rs

@@ -1330,11 +1330,12 @@ impl<T, A: Allocator> RawTable<T, A> {
     ) -> [Option<NonNull<T>>; N] {
         // TODO use `MaybeUninit::uninit_array` here instead once that's stable.
         let mut outs: MaybeUninit<[Option<NonNull<T>>; N]> = MaybeUninit::uninit();
-        let outs_ptr = outs.as_mut_ptr();
+        // TODO use `*mut [T; N]::as_mut_ptr` here instead once that's stable.
+        let outs_ptr = outs.as_mut_ptr() as *mut Option<NonNull<T>>;
 
         for (i, &hash) in hashes.iter().enumerate() {
             let cur = self.find(hash, |k| eq(i, k)).map(|cur| cur.as_non_null());
-            *(*outs_ptr).get_unchecked_mut(i) = cur;
+            outs_ptr.add(i).write(cur);
         }
 
         outs.assume_init()