From ad855fe6db641755c528fb5b1cc0308f3a4bf607 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?R=C3=A9my=20Rakic?= <remy.rakic+github@gmail.com>
Date: Sat, 24 Aug 2024 20:39:04 +0000
Subject: [PATCH] this needs the type for some reason

---
 compiler/rustc_type_ir/src/elaborate.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/compiler/rustc_type_ir/src/elaborate.rs b/compiler/rustc_type_ir/src/elaborate.rs
index f30419c801f..433c444e701 100644
--- a/compiler/rustc_type_ir/src/elaborate.rs
+++ b/compiler/rustc_type_ir/src/elaborate.rs
@@ -237,7 +237,7 @@ pub fn supertrait_def_ids<I: Interner>(
     cx: I,
     trait_def_id: I::DefId,
 ) -> impl Iterator<Item = I::DefId> {
-    let mut set = HashSet::default();
+    let mut set: HashSet<I::DefId> = HashSet::default();
     let mut stack = vec![trait_def_id];
 
     set.insert(trait_def_id);