From ed711b71db616a1f1bf255d1e993463e93e1b0ec Mon Sep 17 00:00:00 2001
From: Nathan Stocks <cleancut@github.com>
Date: Thu, 18 Aug 2022 18:53:51 -0600
Subject: [PATCH] Add missing lifetime (#1439)

* fix incorrect #[note] syntax

* more syntax fixes

* add missing lifetime
---
 src/doc/rustc-dev-guide/src/diagnostics/diagnostic-structs.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/doc/rustc-dev-guide/src/diagnostics/diagnostic-structs.md b/src/doc/rustc-dev-guide/src/diagnostics/diagnostic-structs.md
index d30dd180bb1b..f676e7ff7613 100644
--- a/src/doc/rustc-dev-guide/src/diagnostics/diagnostic-structs.md
+++ b/src/doc/rustc-dev-guide/src/diagnostics/diagnostic-structs.md
@@ -113,7 +113,7 @@ In the end, the `SessionDiagnostic` derive will generate an implementation of
 `SessionDiagnostic` that looks like the following:
 
 ```rust,ignore
-impl SessionDiagnostic for FieldAlreadyDeclared {
+impl SessionDiagnostic<'_> for FieldAlreadyDeclared {
     fn into_diagnostic(self, sess: &'_ rustc_session::Session) -> DiagnosticBuilder<'_> {
         let mut diag = sess.struct_err(rustc_errors::fluent::typeck::field_already_declared);
         diag.set_span(self.span);