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+# `alloc_error_handler`
+
+The tracking issue for this feature is: [#51540]
+
+[#51540]: https://github.com/rust-lang/rust/issues/51540
+
+------------------------
+
+This attribute is mandatory when using the alloc crate without the std crate. It is used when handling out of memory (OOM) allocation error, and is called
+by `alloc::alloc::handle_alloc_error`
+
+``` rust,ignore (partial-example)
+#![feature(alloc_error_handler)]
+#![no_std]
+
+#[alloc_error_handler]
+fn foo(_: core::alloc::Layout) -> ! {
+    // …
+}
+```