From 06fbd599cf55b9e49dc54f5f7f356d19e4c2ffec Mon Sep 17 00:00:00 2001
From: QuietMisdreavus <grey@quietmisdreavus.net>
Date: Tue, 19 Dec 2017 15:04:03 -0600
Subject: [PATCH] turn errors with external docs into actual errors

---
 src/libsyntax/ext/expand.rs | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/src/libsyntax/ext/expand.rs b/src/libsyntax/ext/expand.rs
index edf3d40be94..735588d2949 100644
--- a/src/libsyntax/ext/expand.rs
+++ b/src/libsyntax/ext/expand.rs
@@ -1111,10 +1111,10 @@ impl<'a, 'b> Folder for InvocationCollector<'a, 'b> {
                     match File::open(&filename).and_then(|mut f| f.read_to_end(&mut buf)) {
                         Ok(..) => {}
                         Err(e) => {
-                            self.cx.span_warn(at.span,
-                                              &format!("couldn't read {}: {}",
-                                                       filename.display(),
-                                                       e));
+                            self.cx.span_err(at.span,
+                                             &format!("couldn't read {}: {}",
+                                                      filename.display(),
+                                                      e));
                         }
                     }
 
@@ -1133,9 +1133,9 @@ impl<'a, 'b> Folder for InvocationCollector<'a, 'b> {
                                         attr::mk_list_item("include".into(), include_info))));
                         }
                         Err(_) => {
-                            self.cx.span_warn(at.span,
-                                              &format!("{} wasn't a utf-8 file",
-                                                       filename.display()));
+                            self.cx.span_err(at.span,
+                                             &format!("{} wasn't a utf-8 file",
+                                                      filename.display()));
                         }
                     }
                 } else {