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-rw-r--r--library/core/tests/lib.rs1
1 files changed, 1 insertions, 0 deletions
diff --git a/library/core/tests/lib.rs b/library/core/tests/lib.rs
index 3947a64e5c6..ccb7be68eb1 100644
--- a/library/core/tests/lib.rs
+++ b/library/core/tests/lib.rs
@@ -67,6 +67,7 @@
 #![feature(slice_internals)]
 #![feature(slice_partition_dedup)]
 #![feature(ip)]
+#![feature(ip_in_core)]
 #![feature(iter_advance_by)]
 #![feature(iter_array_chunks)]
 #![feature(iter_collect_into)]