From b4091032abbadf586ea8c77bc547ec2ac403ef0a Mon Sep 17 00:00:00 2001
From: Takayuki Nakata <f.seasons017@gmail.com>
Date: Tue, 14 Jul 2020 08:08:13 +0900
Subject: [PATCH] Use `.is_some()` not `Some(_)`

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

diff --git a/clippy_lints/src/repeat_once.rs b/clippy_lints/src/repeat_once.rs
index 3a0b3b1c257..a3af369e41e 100644
--- a/clippy_lints/src/repeat_once.rs
+++ b/clippy_lints/src/repeat_once.rs
@@ -55,7 +55,7 @@ fn check_expr(&mut self, cx: &LateContext<'_>, expr: &'tcx Expr<'_>) {
                         format!("{}.to_string()", snippet(cx, args[0].span, r#""...""#)),
                         Applicability::MachineApplicable,
                     );
-                } else if let Some(_) = ty.builtin_index() {
+                } else if ty.builtin_index().is_some() {
                     span_lint_and_sugg(
                         cx,
                         REPEAT_ONCE,