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-rw-r--r--compiler/rustc_errors/src/diagnostic.rs6
1 files changed, 3 insertions, 3 deletions
diff --git a/compiler/rustc_errors/src/diagnostic.rs b/compiler/rustc_errors/src/diagnostic.rs
index 643f3c12134..eaceecc1667 100644
--- a/compiler/rustc_errors/src/diagnostic.rs
+++ b/compiler/rustc_errors/src/diagnostic.rs
@@ -827,7 +827,7 @@ impl Diagnostic {
         self
     }
 
-    pub fn styled_message(&self) -> &Vec<(DiagnosticMessage, Style)> {
+    pub fn styled_message(&self) -> &[(DiagnosticMessage, Style)] {
         &self.message
     }
 
@@ -888,11 +888,11 @@ impl Diagnostic {
         &self,
     ) -> (
         &Level,
-        &Vec<(DiagnosticMessage, Style)>,
+        &[(DiagnosticMessage, Style)],
         &Option<DiagnosticId>,
         &MultiSpan,
         &Result<Vec<CodeSuggestion>, SuggestionsDisabled>,
-        Option<&Vec<SubDiagnostic>>,
+        Option<&[SubDiagnostic]>,
     ) {
         (
             &self.level,