Fix ICE formatting

rust-lang · Jan 12, 2023 · 06a2d2d · 06a2d2d
1 parent 1bc3683
commit 06a2d2d
Showing 1 changed file with 1 addition and 1 deletion.
diff --git 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 {