Adding upstream version 1.66.0+dfsg1.upstream/1.66.0+dfsg1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/compiler/rustc_infer/src/traits/structural_impls.rs b/compiler/rustc_infer/src/traits/structural_impls.rs
index 573d2d1e3..1c6ab6a08 100644
--- a/compiler/rustc_infer/src/traits/structural_impls.rs
+++ b/compiler/rustc_infer/src/traits/structural_impls.rs
@@ -47,6 +47,7 @@ impl<'tcx> fmt::Debug for traits::FulfillmentErrorCode<'tcx> {
                 write!(f, "CodeConstEquateError({:?}, {:?})", a, b)
             }
             super::CodeAmbiguity => write!(f, "Ambiguity"),
+            super::CodeCycle(ref cycle) => write!(f, "Cycle({:?})", cycle),
         }
     }
 }