From 4e7526144285ecdf92846785d32097d35aab5cef Mon Sep 17 00:00:00 2001
From: Alice Ryhl <aliceryhl@google.com>
Date: Tue, 7 Apr 2026 08:42:09 +0000
Subject: [PATCH] Add Sized supertrait for CoerceUnsized and DispatchFromDyn

---
 library/core/src/ops/unsize.rs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/library/core/src/ops/unsize.rs b/library/core/src/ops/unsize.rs
index f0781ee01fd5..45a6e973ca71 100644
--- a/library/core/src/ops/unsize.rs
+++ b/library/core/src/ops/unsize.rs
@@ -33,7 +33,7 @@
 /// [nomicon-coerce]: ../../nomicon/coercions.html
 #[unstable(feature = "coerce_unsized", issue = "18598")]
 #[lang = "coerce_unsized"]
-pub trait CoerceUnsized<T: PointeeSized> {
+pub trait CoerceUnsized<T: PointeeSized>: Sized {
     // Empty.
 }
 
@@ -116,7 +116,7 @@ impl<T: PointeeSized + Unsize<U>, U: PointeeSized> CoerceUnsized<*const U> for *
 /// [^1]: Formerly known as *object safety*.
 #[unstable(feature = "dispatch_from_dyn", issue = "none")]
 #[lang = "dispatch_from_dyn"]
-pub trait DispatchFromDyn<T> {
+pub trait DispatchFromDyn<T>: Sized {
     // Empty.
 }