Vendor dependencies for 0.3.0 release

vendor/zerocopy/tests/ui-msrv/try_transmute_ref-dst-mutable.rs

@@ -0,0 +1,19 @@
+// Copyright 2024 The Fuchsia Authors
+//
+// Licensed under a BSD-style license <LICENSE-BSD>, Apache License, Version 2.0
+// <LICENSE-APACHE or https://www.apache.org/licenses/LICENSE-2.0>, or the MIT
+// license <LICENSE-MIT or https://opensource.org/licenses/MIT>, at your option.
+// This file may not be copied, modified, or distributed except according to
+// those terms.
+
+extern crate zerocopy;
+
+use zerocopy::try_transmute_ref;
+
+fn main() {}
+
+fn ref_dst_mutable() {
+    // `try_transmute_ref!` requires that its destination type be an immutable
+    // reference.
+    let _: Result<&mut u8, _> = try_transmute_ref!(&0u8);
+}