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-rw-r--r--library/core/tests/lib.rs2
1 files changed, 2 insertions, 0 deletions
diff --git a/library/core/tests/lib.rs b/library/core/tests/lib.rs
index d849561bb21..aac9250aa4f 100644
--- a/library/core/tests/lib.rs
+++ b/library/core/tests/lib.rs
@@ -2,6 +2,8 @@
 #![feature(array_chunks)]
 #![feature(array_methods)]
 #![feature(array_windows)]
+#![feature(ascii_char)]
+#![feature(ascii_char_variants)]
 #![feature(bigint_helper_methods)]
 #![feature(cell_update)]
 #![feature(const_align_offset)]