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-rw-r--r--compiler/rustc_ty_utils/src/instance.rs1
1 files changed, 1 insertions, 0 deletions
diff --git a/compiler/rustc_ty_utils/src/instance.rs b/compiler/rustc_ty_utils/src/instance.rs
index 8c6e3c86bf5..d059d6dcd13 100644
--- a/compiler/rustc_ty_utils/src/instance.rs
+++ b/compiler/rustc_ty_utils/src/instance.rs
@@ -112,6 +112,7 @@ fn resolve_associated_item<'tcx>(
             | CodegenObligationError::Unimplemented
             | CodegenObligationError::FulfillmentError,
         ) => return Ok(None),
+        Err(CodegenObligationError::UnconstrainedParam(guar)) => return Err(guar),
     };
 
     // Now that we know which impl is being used, we can dispatch to