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-rw-r--r--tests/ui/feature-gates/feature-gate-allocator_internals.rs3
1 files changed, 3 insertions, 0 deletions
diff --git a/tests/ui/feature-gates/feature-gate-allocator_internals.rs b/tests/ui/feature-gates/feature-gate-allocator_internals.rs
new file mode 100644
index 00000000000..a17d17da607
--- /dev/null
+++ b/tests/ui/feature-gates/feature-gate-allocator_internals.rs
@@ -0,0 +1,3 @@
+#![default_lib_allocator] //~ ERROR: attribute is an experimental feature
+
+fn main() {}