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-rw-r--r--src/libcore/lib.rs1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/libcore/lib.rs b/src/libcore/lib.rs
index 78a467e3657..94408072932 100644
--- a/src/libcore/lib.rs
+++ b/src/libcore/lib.rs
@@ -79,6 +79,7 @@
 #![feature(optin_builtin_traits)]
 #![feature(reflect)]
 #![feature(rustc_attrs)]
+#![feature(unwind_attributes)]
 #![cfg_attr(stage0, feature(simd))]
 #![cfg_attr(not(stage0), feature(repr_simd, platform_intrinsics))]
 #![feature(staged_api)]