X-Git-Url: https://git.lizzy.rs/?a=blobdiff_plain;f=compiler%2Frustc_trait_selection%2Fsrc%2Ftraits%2Ferror_reporting%2Fmod.rs;h=cc61e18743133c94ba0f5951a290937a8516f04d;hb=07fd8089a45cb917ae85eb06e33374db159332e3;hp=12cc72d30c87e09860f7a5a1454b4be6574b9b22;hpb=be3ad5d6b0d3292d53599b3325cb9e6bdf656749;p=rust.git

diff --git a/compiler/rustc_trait_selection/src/traits/error_reporting/mod.rs b/compiler/rustc_trait_selection/src/traits/error_reporting/mod.rs
index 12cc72d30c8..cc61e187431 100644
--- a/compiler/rustc_trait_selection/src/traits/error_reporting/mod.rs
+++ b/compiler/rustc_trait_selection/src/traits/error_reporting/mod.rs
@@ -1607,7 +1607,7 @@ fn report_projection_error(
                         | ObligationCauseCode::ObjectCastObligation(..)
                         | ObligationCauseCode::OpaqueType
                 );
-                let expected_ty = data.term.ty().unwrap();
+                let expected_ty = data.term.ty().unwrap_or_else(|| self.tcx.ty_error());
 
                 // constrain inference variables a bit more to nested obligations from normalize so
                 // we can have more helpful errors.