[PATCH] rust: pin-init: replace clippy `expect` with `allow`

[Benno Lossin]

`clippy` has changed behavior in [1] (Rust 1.95) where it no longer
warns about the `let_and_return` lint when a comment is placed between
the let binding and the return expression. Nightly thus fails to build,
because the expectation is no longer fulfilled.

Thus replace the expectation with an `allow`.

Link: https://github.com/rust-lang/rust-clippy/pull/16461 [1]
Signed-off-by: Benno Lossin <lossin@xxxxxxxxxx>
---
 rust/pin-init/src/lib.rs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/rust/pin-init/src/lib.rs b/rust/pin-init/src/lib.rs
index 49945fc07f25..fe4c85ae3f02 100644
--- a/rust/pin-init/src/lib.rs
+++ b/rust/pin-init/src/lib.rs
@@ -1143,13 +1143,13 @@ unsafe fn __pinned_init(self, slot: *mut T) -> Result<(), E> {
 ///
 /// - `*mut U` must be castable to `*mut T` and any value of type `T` written through such a
 ///   pointer must result in a valid `U`.
-#[expect(clippy::let_and_return)]
 pub const unsafe fn cast_pin_init<T, U, E>(init: impl PinInit<T, E>) -> impl PinInit<U, E> {
     // SAFETY: initialization delegated to a valid initializer. Cast is valid by function safety
     // requirements.
     let res = unsafe { pin_init_from_closure(|ptr: *mut U| init.__pinned_init(ptr.cast::<T>())) };
     // FIXME: remove the let statement once the nightly-MSRV allows it (1.78 otherwise encounters a
     // cycle when computing the type returned by this function)
+    #[allow(clippy::let_and_return)]
     res
 }
 
@@ -1159,13 +1159,13 @@ unsafe fn __pinned_init(self, slot: *mut T) -> Result<(), E> {
 ///
 /// - `*mut U` must be castable to `*mut T` and any value of type `T` written through such a
 ///   pointer must result in a valid `U`.
-#[expect(clippy::let_and_return)]
 pub const unsafe fn cast_init<T, U, E>(init: impl Init<T, E>) -> impl Init<U, E> {
     // SAFETY: initialization delegated to a valid initializer. Cast is valid by function safety
     // requirements.
     let res = unsafe { init_from_closure(|ptr: *mut U| init.__init(ptr.cast::<T>())) };
     // FIXME: remove the let statement once the nightly-MSRV allows it (1.78 otherwise encounters a
     // cycle when computing the type returned by this function)
+    #[allow(clippy::let_and_return)]
     res
 }
 

base-commit: ca4ee40bf13dbd3a4be3b40a00c33a1153d487e5
-- 
2.52.0