From: csmoe <csmoe@msn.com>
Date: Tue, 14 Jan 2020 13:22:19 +0000 (+0800)
Subject: suggest to limit lifetime of temporary borrow with let
X-Git-Url: https://git.lizzy.rs/?a=commitdiff_plain;h=b97560116785f2dbb488e66ab34aeee981ec2912;p=rust.git

suggest to limit lifetime of temporary borrow with let
---

diff --git a/src/librustc/traits/error_reporting.rs b/src/librustc/traits/error_reporting.rs
index 66737372bda..13eb47a041f 100644
--- a/src/librustc/traits/error_reporting.rs
+++ b/src/librustc/traits/error_reporting.rs
@@ -2578,7 +2578,7 @@ fn note_obligation_cause_for_async_await(
             };
 
             span.push_span_label(original_span, message);
-            err.set_span(span);
+            err.set_span(span.clone());
 
             format!("is not {}", trait_name)
         } else {