update to Rust 1.65.0

Summary:
Added `fbcode` symlinks for `platform010` & `platform010-aarch64` and addressed the following fixes:
* Account for stabilized [`#![feature(backtrace)]`](rust-lang/rust#99573) and [`#![feature(generic_associated_types)]`](rust-lang/rust#99573)
* Account for removal of [`#![feature(result_into_ok_or_err)]`](rust-lang/rust#100604)
* Account for migration of [`std::io::ReadBuf` to `std::io::BorrowBuf|BorrowCursor`](rust-lang/rust#97015)
* Account for [`Error` trait move into core](rust-lang/rust#99917)
* Account for `#[warn(non_camel_case_types)]`
* Various function signature, lifetime requirement changes and lint fixes

Reviewed By: zertosh

Differential Revision: D40923615

fbshipit-source-id: f7ac2828d74edeae39aae517172207b0ee998a59

Author: diliop

below/src/main.rs

@@ -12,7 +12,6 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#![cfg_attr(feature = "enable_backtrace", feature(backtrace))]
 #![recursion_limit = "256"]
 
 use std::cell::RefCell;