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-rw-r--r--src/libcore/tests/lib.rs1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/libcore/tests/lib.rs b/src/libcore/tests/lib.rs
index d92c378160d..528ab3bc845 100644
--- a/src/libcore/tests/lib.rs
+++ b/src/libcore/tests/lib.rs
@@ -20,6 +20,7 @@
 #![feature(fixed_size_array)]
 #![feature(flt2dec)]
 #![feature(fmt_internals)]
+#![feature(iter_rfind)]
 #![feature(libc)]
 #![feature(nonzero)]
 #![feature(rand)]