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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 11765e3ef56..87612b7e818 100644
--- a/src/libcore/tests/lib.rs
+++ b/src/libcore/tests/lib.rs
@@ -27,6 +27,7 @@
 #![feature(pattern)]
 #![feature(range_is_empty)]
 #![feature(raw)]
+#![feature(refcell_map_split)]
 #![feature(refcell_replace_swap)]
 #![feature(slice_patterns)]
 #![feature(slice_rotate)]