From 06a2d2d001c7d75bfd6c006711f635f9f5f5effb Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Esteban=20K=C3=BCber?= <esteban@kuber.com.ar>
Date: Thu, 12 Jan 2023 23:46:58 +0000
Subject: [PATCH] Fix ICE formatting

---
 compiler/rustc_borrowck/src/diagnostics/region_errors.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/compiler/rustc_borrowck/src/diagnostics/region_errors.rs b/compiler/rustc_borrowck/src/diagnostics/region_errors.rs
index e8a4d1c37c187..f3050a6ef3f07 100644
--- a/compiler/rustc_borrowck/src/diagnostics/region_errors.rs
+++ b/compiler/rustc_borrowck/src/diagnostics/region_errors.rs
@@ -79,7 +79,7 @@ impl<'tcx> RegionErrors<'tcx> {
     #[track_caller]
     pub fn push(&mut self, val: impl Into<RegionErrorKind<'tcx>>) {
         let val = val.into();
-        self.1.sess.delay_span_bug(DUMMY_SP, "{val:?}");
+        self.1.sess.delay_span_bug(DUMMY_SP, format!("{val:?}"));
         self.0.push(val);
     }
     pub fn is_empty(&self) -> bool {