From c59f90d01f06f995e335c6de76aab0b9ba2c98e5 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bartek=20Iwa=C5=84czuk?= <biwanczuk@gmail.com>
Date: Sat, 4 Dec 2021 14:19:06 +0100
Subject: chore: upgrade to Rust 1.57.0 (#12968)

---
 core/async_cancel.rs | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

(limited to 'core/async_cancel.rs')

diff --git a/core/async_cancel.rs b/core/async_cancel.rs
index ab7ec2248..1cdddcdb5 100644
--- a/core/async_cancel.rs
+++ b/core/async_cancel.rs
@@ -511,7 +511,7 @@ mod internal {
       /// the heap allocation that contains the `CancelHandle`. Without this
       /// extra weak reference, `Rc::get_mut()` might succeed and allow the
       /// `CancelHandle` to be moved when it isn't safe to do so.
-      weak_pin: Weak<dyn Any>,
+      _weak_pin: Weak<dyn Any>,
     },
     /// All item nodes in a chain are associated with a `Cancelable` head node.
     Item {
@@ -523,8 +523,8 @@ mod internal {
 
   impl NodeKind {
     fn head(rc_pin: &Rc<dyn Any>) -> Self {
-      let weak_pin = Rc::downgrade(rc_pin);
-      Self::Head { weak_pin }
+      let _weak_pin = Rc::downgrade(rc_pin);
+      Self::Head { _weak_pin }
     }
 
     fn item(waker: &Waker) -> Self {
-- 
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