chore(deps): update rust to v1.68.0

[renovate[bot]]

This PR contains the following updates:

Package	Update	Change
rust	minor	1.67.1 -> 1.68.0

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Release Notes

rust-lang/rust

### [`v1.68.0`](https://togithub.com/rust-lang/rust/blob/HEAD/RELEASES.md#Version-1680-2023-03-09) [Compare Source](https://togithub.com/rust-lang/rust/compare/1.67.1...1.68.0) \========================== ## Language - [Stabilize default_alloc_error_handler](https://togithub.com/rust-lang/rust/pull/102318/) This allows usage of `alloc` on stable without requiring the definition of a handler for allocation failure. Defining custom handlers is still unstable. - [Stabilize `efiapi` calling convention.](https://togithub.com/rust-lang/rust/pull/105795/) - [Remove implicit promotion for types with drop glue](https://togithub.com/rust-lang/rust/pull/105085/) ## Compiler - [Change `bindings_with_variant_name` to deny-by-default](https://togithub.com/rust-lang/rust/pull/104154/) - [Allow .. to be parsed as let initializer](https://togithub.com/rust-lang/rust/pull/105701/) - [Add `armv7-sony-vita-newlibeabihf` as a tier 3 target](https://togithub.com/rust-lang/rust/pull/105712/) - [Always check alignment during compile-time const evaluation](https://togithub.com/rust-lang/rust/pull/104616/) - [Disable "split dwarf inlining" by default.](https://togithub.com/rust-lang/rust/pull/106709/) - [Add vendor to Fuchsia's target triple](https://togithub.com/rust-lang/rust/pull/106429/) - [Enable sanitizers for s390x-linux](https://togithub.com/rust-lang/rust/pull/107127/) ## Libraries - [Loosen the bound on the Debug implementation of Weak.](https://togithub.com/rust-lang/rust/pull/90291/) - [Make `std::task::Context` !Send and !Sync](https://togithub.com/rust-lang/rust/pull/95985/) - [PhantomData layout guarantees](https://togithub.com/rust-lang/rust/pull/104081/) - [Don't derive Debug for `OnceWith` & `RepeatWith`](https://togithub.com/rust-lang/rust/pull/104163/) - [Implement DerefMut for PathBuf](https://togithub.com/rust-lang/rust/pull/105018/) - [Add O(1) `Vec -> VecDeque` conversion guarantee](https://togithub.com/rust-lang/rust/pull/105128/) - [Leak amplification for peek_mut() to ensure BinaryHeap's invariant is always met](https://togithub.com/rust-lang/rust/pull/105851/) ## Stabilized APIs - [`{core,std}::pin::pin!`](https://doc.rust-lang.org/stable/std/pin/macro.pin.html) - [`impl From for {f32,f64}`](https://doc.rust-lang.org/stable/std/primitive.f32.html#impl-From%3Cbool%3E-for-f32) - [`std::path::MAIN_SEPARATOR_STR`](https://doc.rust-lang.org/stable/std/path/constant.MAIN_SEPARATOR_STR.html) - [`impl DerefMut for PathBuf`](https://doc.rust-lang.org/stable/std/path/struct.PathBuf.html#impl-DerefMut-for-PathBuf) These APIs are now stable in const contexts: - [`VecDeque::new`](https://doc.rust-lang.org/stable/std/collections/struct.VecDeque.html#method.new) ## Cargo - [Stabilize sparse registry support for crates.io](https://togithub.com/rust-lang/cargo/pull/11224/) - [`cargo build --verbose` tells you more about why it recompiles.](https://togithub.com/rust-lang/cargo/pull/11407/) - [Show progress of crates.io index update even `net.git-fetch-with-cli` option enabled](https://togithub.com/rust-lang/cargo/pull/11579/) ## Misc ## Compatibility Notes - [Add `SEMICOLON_IN_EXPRESSIONS_FROM_MACROS` to future-incompat report](https://togithub.com/rust-lang/rust/pull/103418/) - [Only specify `--target` by default for `-Zgcc-ld=lld` on wasm](https://togithub.com/rust-lang/rust/pull/101792/) - [Bump `IMPLIED_BOUNDS_ENTAILMENT` to Deny + ReportNow](https://togithub.com/rust-lang/rust/pull/106465/) - [`std::task::Context` no longer implements Send and Sync](https://togithub.com/rust-lang/rust/pull/95985) ## Internal Changes These changes do not affect any public interfaces of Rust, but they represent significant improvements to the performance or internals of rustc and related tools. - [Encode spans relative to the enclosing item](https://togithub.com/rust-lang/rust/pull/84762/) - [Don't normalize in AstConv](https://togithub.com/rust-lang/rust/pull/101947/) - [Find the right lower bound region in the scenario of partial order relations](https://togithub.com/rust-lang/rust/pull/104765/) - [Fix impl block in const expr](https://togithub.com/rust-lang/rust/pull/104889/) - [Check ADT fields for copy implementations considering regions](https://togithub.com/rust-lang/rust/pull/105102/) - [rustdoc: simplify JS search routine by not messing with lev distance](https://togithub.com/rust-lang/rust/pull/105796/) - [Enable ThinLTO for rustc on `x86_64-pc-windows-msvc`](https://togithub.com/rust-lang/rust/pull/103591/) - [Enable ThinLTO for rustc on `x86_64-apple-darwin`](https://togithub.com/rust-lang/rust/pull/103647/)

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