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-rw-r--r--src/test/run-pass/trait-bounds-recursion.rs2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/test/run-pass/trait-bounds-recursion.rs b/src/test/run-pass/trait-bounds-recursion.rs
index 7135dad7d19..d10e098f9d6 100644
--- a/src/test/run-pass/trait-bounds-recursion.rs
+++ b/src/test/run-pass/trait-bounds-recursion.rs
@@ -8,6 +8,8 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
+#![feature(core)]
+
 trait I { fn i(&self) -> Self; }
 
 trait A<T:I> : ::std::marker::MarkerTrait {