From 8f05d12c6778b524e9209a6a32cbfe617f92428c Mon Sep 17 00:00:00 2001
From: Camille GILLOT <gillot.camille@gmail.com>
Date: Sun, 29 Dec 2019 12:17:56 +0100
Subject: [PATCH] Duplicate allocations in lowering.

---
 src/librustc/hir/lowering/item.rs | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/librustc/hir/lowering/item.rs b/src/librustc/hir/lowering/item.rs
index 48c93547603bd..37450b25d8523 100644
--- a/src/librustc/hir/lowering/item.rs
+++ b/src/librustc/hir/lowering/item.rs
@@ -1122,7 +1122,7 @@ impl<'hir> LoweringContext<'_, 'hir> {
                     let stmt = this.stmt_let_pat(
                         stmt_attrs,
                         desugared_span,
-                        Some(this.arena.alloc(expr)),
+                        Some(expr),
                         parameter.pat,
                         hir::LocalSource::AsyncFn,
                     );
@@ -1152,7 +1152,7 @@ impl<'hir> LoweringContext<'_, 'hir> {
                     let move_stmt = this.stmt_let_pat(
                         AttrVec::new(),
                         desugared_span,
-                        Some(this.arena.alloc(move_expr)),
+                        Some(move_expr),
                         move_pat,
                         hir::LocalSource::AsyncFn,
                     );
@@ -1163,7 +1163,7 @@ impl<'hir> LoweringContext<'_, 'hir> {
                     let pattern_stmt = this.stmt_let_pat(
                         stmt_attrs,
                         desugared_span,
-                        Some(this.arena.alloc(pattern_expr)),
+                        Some(pattern_expr),
                         parameter.pat,
                         hir::LocalSource::AsyncFn,
                     );