diff --git a/rust/pin-init/src/lib.rs b/rust/pin-init/src/lib.rs
index 3fc4a674a487..ef9f20b11034 100644
--- a/rust/pin-init/src/lib.rs
+++ b/rust/pin-init/src/lib.rs
@@ -959,13 +959,11 @@ unsafe impl<T: ?Sized, E, I, F> PinInit<T, E> for ChainPinInit<I, F, T, E>
 {
     unsafe fn __pinned_init(self, slot: *mut T) -> Result<(), E> {
         // SAFETY: All requirements fulfilled since this function is `__pinned_init`.
-        unsafe { self.0.__pinned_init(slot)? };
-        // SAFETY: The above call initialized `slot` and we still have unique access.
-        let val = unsafe { &mut *slot };
-        // SAFETY: `slot` is considered pinned.
-        let val = unsafe { Pin::new_unchecked(val) };
-        // SAFETY: `slot` was initialized above.
-        (self.1)(val).inspect_err(|_| unsafe { core::ptr::drop_in_place(slot) })
+        let slot = unsafe { __internal::Slot::<__internal::Pinned, _>::new(slot) };
+        let mut guard = slot.init(self.0)?;
+        (self.1)(guard.let_binding())?;
+        core::mem::forget(guard);
+        Ok(())
     }
 }
 
@@ -1065,11 +1063,11 @@ unsafe impl<T: ?Sized, E, I, F> Init<T, E> for ChainInit<I, F, T, E>
 {
     unsafe fn __init(self, slot: *mut T) -> Result<(), E> {
         // SAFETY: All requirements fulfilled since this function is `__init`.
-        unsafe { self.0.__pinned_init(slot)? };
-        // SAFETY: The above call initialized `slot` and we still have unique access.
-        (self.1)(unsafe { &mut *slot }).inspect_err(|_|
-            // SAFETY: `slot` was initialized above.
-            unsafe { core::ptr::drop_in_place(slot) })
+        let slot = unsafe { __internal::Slot::<__internal::Unpinned, _>::new(slot) };
+        let mut guard = slot.init(self.0)?;
+        (self.1)(guard.let_binding())?;
+        core::mem::forget(guard);
+        Ok(())
     }
 }