Bug 2123899

.Rust Toolset rebased to version 1.66.1 Rust Toolset has been updated to version 1.66.1. Notable changes include: * The `thread::scope` API creates a lexical scope in which local variables can be safely borrowed by newly spawned threads, and those threads are all guaranteed to exit before the scope ends. * The `hint::black_box` API adds a barrier to compiler optimization, which is useful for preserving behavior in benchmarks that might otherwise be optimized away. * The `.await` keyword now makes conversions with the `IntoFuture` trait, similar to the relationship between `for` and `IntoIterator`. * Generic associated types (GATs) allow traits to include type aliases with generic parameters, enabling new abstractions over both types and lifetimes. * A new `let`-`else` statement allows binding local variables with conditional pattern matching, executing a divergent `else` block when the pattern does not match. * Labeled blocks allow `break` statements to jump to the end of the block, optionally including an expression value. * `rust-analyzer` is a new implementation of the Language Server Protocol, enabling Rust support in many editors. This replaces the former `rls` package, but you might need to adjust your editor configuration to migrate to `rust-analyzer` . * Cargo has a new `cargo remove` subcommand for removing dependencies from `Cargo.toml`. //* For more details, please see the series of upstream release announcements: // ** link:https://blog.rust-lang.org/2022/08/11/Rust-1.63.0.html[Announcing Rust 1.63.0] // ** link:https://blog.rust-lang.org/2022/09/22/Rust-1.64.0.html[Announcing Rust 1.64.0] // ** link:https://blog.rust-lang.org/2022/11/03/Rust-1.65.0.html[Announcing Rust 1.65.0] // ** link:https://blog.rust-lang.org/2022/12/15/Rust-1.66.0.html[Announcing Rust 1.66.0]