1 files changed, 4 insertions, 2 deletions
diff --git a/compiler/rustc_lint/src/internal.rs b/compiler/rustc_lint/src/internal.rs
index 595b50c4063..0082aaa4a38 100644
--- a/compiler/rustc_lint/src/internal.rs
+++ b/compiler/rustc_lint/src/internal.rs
@@ -478,8 +478,10 @@ impl EarlyLintPass for Diagnostics {
         }
         if !segments.iter().all(|(name, args)| {
             let arg = match name.as_str() {
-                "struct_span_err" | "span_note" | "span_label" | "span_help" => &args[1],
-                "note" | "help" => &args[0],
+                "struct_span_err" | "span_note" | "span_label" | "span_help" if args.len() == 2 => {
+                    &args[1]
+                }
+                "note" | "help" if args.len() == 1 => &args[0],
                 _ => {
                     return false;
                 }