From 54e8216348a1cd47a7fe43bbfbf7fd469ae83c44 Mon Sep 17 00:00:00 2001
From: Guillaume Gomez <guillaume1.gomez@gmail.com>
Date: Tue, 14 Jul 2020 14:44:12 +0200
Subject: [PATCH] Update error code detection in compile_fail doctests

---
 src/librustdoc/doctest.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/librustdoc/doctest.rs b/src/librustdoc/doctest.rs
index b49bbf3f8011..478a72f400ad 100644
--- a/src/librustdoc/doctest.rs
+++ b/src/librustdoc/doctest.rs
@@ -333,7 +333,7 @@ fn run_test(
         (true, false) => {}
         (false, true) => {
             if !error_codes.is_empty() {
-                error_codes.retain(|err| !out.contains(&format!("error[{}]: ", err)));
+                error_codes.retain(|err| !out.contains(&format!("error[{}]", err)));
 
                 if !error_codes.is_empty() {
                     return Err(TestFailure::MissingErrorCodes(error_codes));