Always try and enable the new_uninit feature.

The crate won't build without it anyway, so unconditionally
try and enable it.

Change-Id: Ief8a7dbf8d0af3040b1832424007150987ce654d
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/74947
Auto-Submit: Pete Bentley <prb@google.com>
Commit-Queue: Adam Langley <agl@google.com>
Reviewed-by: Adam Langley <agl@google.com>

rust/bssl-crypto/src/lib.rs

diff --git a/rust/bssl-crypto/src/lib.rs b/rust/bssl-crypto/src/lib.rs
index bd68760..5cc3a7a 100644
--- a/rust/bssl-crypto/src/lib.rs
+++ b/rust/bssl-crypto/src/lib.rs
@@ -23,6 +23,10 @@
 )]
 #![cfg_attr(not(any(feature = "std", test)), no_std)]
 
+// This crate requires the |new_uninit| feature which is available by
+// default in Rust 1.82 but present and usable in some earlier versions.
+#![feature(new_uninit)]
+
 //! Rust BoringSSL bindings
 
 extern crate alloc;