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-rw-r--r--src/librustc_codegen_utils/symbol_names.rs1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/librustc_codegen_utils/symbol_names.rs b/src/librustc_codegen_utils/symbol_names.rs
index 39b88b225ed..7651dfe4f34 100644
--- a/src/librustc_codegen_utils/symbol_names.rs
+++ b/src/librustc_codegen_utils/symbol_names.rs
@@ -338,6 +338,7 @@ fn compute_symbol_name<'a, 'tcx>(tcx: TyCtxt<'a, 'tcx, 'tcx>, instance: Instance
 //
 // To be able to work on all platforms and get *some* reasonable output, we
 // use C++ name-mangling.
+#[derive(Debug)]
 struct SymbolPathBuffer {
     result: String,
     temp_buf: String,