From 672828e07750eaf6cd55dde953272413cc64391e Mon Sep 17 00:00:00 2001
From: justanotheranonymoususer
 <justanotheranonymoususer@users.noreply.github.com>
Date: Mon, 5 Jan 2026 17:55:54 +0200
Subject: [PATCH] Add missing mut to pin.rs docs

Per my understanding, needed for mut access next line.
---
 library/core/src/pin.rs | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/library/core/src/pin.rs b/library/core/src/pin.rs
index 74ecb5ee4946f..e49faf9eddbdc 100644
--- a/library/core/src/pin.rs
+++ b/library/core/src/pin.rs
@@ -831,15 +831,13 @@
 //!     <code>fn get_pin_mut(self: [Pin]<[`&mut Self`]>) -> [Pin]<[`&mut T`]></code>.
 //!     Then we could do the following:
 //!     ```compile_fail
-//!     # use std::cell::RefCell;
-//!     # use std::pin::Pin;
-//!     fn exploit_ref_cell<T>(rc: Pin<&mut RefCell<T>>) {
+//!     fn exploit_ref_cell<T>(mut rc: Pin<&mut RefCell<T>>) {
 //!         // Here we get pinned access to the `T`.
 //!         let _: Pin<&mut T> = rc.as_mut().get_pin_mut();
 //!
 //!         // And here we have `&mut T` to the same data.
 //!         let shared: &RefCell<T> = rc.into_ref().get_ref();
-//!         let borrow = shared.borrow_mut();
+//!         let mut borrow = shared.borrow_mut();
 //!         let content = &mut *borrow;
 //!     }
 //!     ```