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-rw-r--r--compiler/rustc_codegen_ssa/src/back/write.rs4
1 files changed, 2 insertions, 2 deletions
diff --git a/compiler/rustc_codegen_ssa/src/back/write.rs b/compiler/rustc_codegen_ssa/src/back/write.rs
index e3d11cfaf4f..8445d16befb 100644
--- a/compiler/rustc_codegen_ssa/src/back/write.rs
+++ b/compiler/rustc_codegen_ssa/src/back/write.rs
@@ -514,7 +514,7 @@ pub(crate) fn start_async_codegen<B: ExtraBackendMethods>(
             future: Some(coordinator_thread),
             phantom: PhantomData,
         },
-        output_filenames: tcx.output_filenames(()).clone(),
+        output_filenames: Arc::clone(tcx.output_filenames(())),
     }
 }
 
@@ -1203,7 +1203,7 @@ fn start_executing_work<B: ExtraBackendMethods>(
         coordinator_send,
         expanded_args: tcx.sess.expanded_args.clone(),
         diag_emitter: shared_emitter.clone(),
-        output_filenames: tcx.output_filenames(()).clone(),
+        output_filenames: Arc::clone(tcx.output_filenames(())),
         regular_module_config: regular_config,
         metadata_module_config: metadata_config,
         allocator_module_config: allocator_config,