1 files changed, 9 insertions, 0 deletions
diff --git a/compiler/rustc_trait_selection/src/traits/select/mod.rs b/compiler/rustc_trait_selection/src/traits/select/mod.rs
index 6a6adcbb680..e79277b89c4 100644
--- a/compiler/rustc_trait_selection/src/traits/select/mod.rs
+++ b/compiler/rustc_trait_selection/src/traits/select/mod.rs
@@ -2106,6 +2106,7 @@ impl<'tcx> SelectionContext<'_, 'tcx> {
             | ty::CoroutineWitness(..)
             | ty::Array(..)
             | ty::Closure(..)
+            | ty::CoroutineClosure(..)
             | ty::Never
             | ty::Dynamic(_, _, ty::DynStar)
             | ty::Error(_) => {
@@ -2227,6 +2228,9 @@ impl<'tcx> SelectionContext<'_, 'tcx> {
                 }
             }
 
+            // FIXME(async_closures): These are never clone, for now.
+            ty::CoroutineClosure(_, _) => None,
+
             ty::Adt(..) | ty::Alias(..) | ty::Param(..) | ty::Placeholder(..) => {
                 // Fallback to whatever user-defined impls exist in this case.
                 None
@@ -2305,6 +2309,11 @@ impl<'tcx> SelectionContext<'_, 'tcx> {
                 t.rebind(vec![ty])
             }
 
+            ty::CoroutineClosure(_, args) => {
+                let ty = self.infcx.shallow_resolve(args.as_coroutine_closure().tupled_upvars_ty());
+                t.rebind(vec![ty])
+            }
+
             ty::Coroutine(_, args) => {
                 let ty = self.infcx.shallow_resolve(args.as_coroutine().tupled_upvars_ty());
                 let witness = args.as_coroutine().witness();