From de411d046cca77cae529bdd28bfdb70e75188c55 Mon Sep 17 00:00:00 2001
From: Tim Peters <mail@darksecond.nl>
Date: Thu, 5 Mar 2020 20:55:06 +0100
Subject: [PATCH] Fix build on nightly 1.43.0 (05-03-2020).

The AllocRef trait has been changed slightly.
See https://doc.rust-lang.org/nightly/std/alloc/trait.AllocRef.html#tymethod.alloc
---
 src/lib.rs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/lib.rs b/src/lib.rs
index dbccde9..7b2177a 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -130,8 +130,8 @@ impl Heap {
 }
 
 unsafe impl AllocRef for Heap {
-    unsafe fn alloc(&mut self, layout: Layout) -> Result<NonNull<u8>, AllocErr> {
-        self.allocate_first_fit(layout)
+    unsafe fn alloc(&mut self, layout: Layout) -> Result<(NonNull<u8>, usize), AllocErr> {
+        Ok((self.allocate_first_fit(layout)?, layout.size()))
     }
 
     unsafe fn dealloc(&mut self, ptr: NonNull<u8>, layout: Layout) {