From f408d4bb8ca382bd981fedb7eb809893271f9859 Mon Sep 17 00:00:00 2001
From: The8472 <git@infinite-source.de>
Date: Thu, 5 Aug 2021 09:32:41 +0200
Subject: [PATCH] use box->vec conversion API that doesn't reallocate

---
 compiler/rustc_middle/src/mir/interpret/allocation.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/compiler/rustc_middle/src/mir/interpret/allocation.rs b/compiler/rustc_middle/src/mir/interpret/allocation.rs
index a503c86c59b..ada6e097766 100644
--- a/compiler/rustc_middle/src/mir/interpret/allocation.rs
+++ b/compiler/rustc_middle/src/mir/interpret/allocation.rs
@@ -147,7 +147,7 @@ impl<Tag> Allocation<Tag> {
         })?;
         // SAFETY: This turns a Box<[MaybeUninit<u8>]> into a Vec<u8>. This is safe since the box
         // was zero-allocated which is a valid value for u8.
-        let bytes = unsafe { bytes.assume_init().to_vec() };
+        let bytes = unsafe { bytes.assume_init().into_vec() };
         Ok(Allocation {
             bytes,
             relocations: Relocations::new(),