From f3330cea7f43288362fec9b010b04e22dfbf45a2 Mon Sep 17 00:00:00 2001
From: Shaun Steenkamp <theguywholikeslinux@gmail.com>
Date: Tue, 13 Feb 2018 17:15:58 +0000
Subject: [PATCH] 38880 fix incorrect negation

---
 src/libstd/collections/hash/map.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/libstd/collections/hash/map.rs b/src/libstd/collections/hash/map.rs
index fdc62be3dd9..a8f419d6c6c 100644
--- a/src/libstd/collections/hash/map.rs
+++ b/src/libstd/collections/hash/map.rs
@@ -564,7 +564,7 @@ impl<K, V, S> HashMap<K, V, S>
         where K: Borrow<Q>,
               Q: Eq + Hash
     {
-        if !self.is_empty() {
+        if self.is_empty() {
             return None;
         }