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path: root/compiler/rustc_mir_transform/src/shim.rs
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-rw-r--r--compiler/rustc_mir_transform/src/shim.rs2
1 files changed, 1 insertions, 1 deletions
diff --git a/compiler/rustc_mir_transform/src/shim.rs b/compiler/rustc_mir_transform/src/shim.rs
index 9688ac8ed2e..6d45bbc6e16 100644
--- a/compiler/rustc_mir_transform/src/shim.rs
+++ b/compiler/rustc_mir_transform/src/shim.rs
@@ -98,7 +98,7 @@ fn make_shim<'tcx>(tcx: TyCtxt<'tcx>, instance: ty::InstanceKind<'tcx>) -> Body<
             build_call_shim(tcx, instance, None, CallKind::Direct(def_id))
         }
         ty::InstanceKind::ClosureOnceShim { call_once: _, track_caller: _ } => {
-            let fn_mut = tcx.require_lang_item(LangItem::FnMut, None);
+            let fn_mut = tcx.require_lang_item(LangItem::FnMut, DUMMY_SP);
             let call_mut = tcx
                 .associated_items(fn_mut)
                 .in_definition_order()