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-rw-r--r--src/test/run-pass/arr_cycle.rs2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/test/run-pass/arr_cycle.rs b/src/test/run-pass/arr_cycle.rs
index 80434f36b42..400458b614b 100644
--- a/src/test/run-pass/arr_cycle.rs
+++ b/src/test/run-pass/arr_cycle.rs
@@ -10,7 +10,7 @@
 
 use std::cell::Cell;
 
-#[derive(Show)]
+#[derive(Debug)]
 struct B<'a> {
     a: [Cell<Option<&'a B<'a>>>; 2]
 }