Concerned Rust Issues & PRs

[davidli2010]

Trait

• 🔬 Tracking issue for generic associated types (GAT) rust-lang/rust#44265
• 🔬 Tracking issue for RFC 2089: Extended Implied bounds rust-lang/rust#44491
• https://github.com/rust-lang/rust/issues?q=is%3Aissue+is%3Aopen+GAT

Allocator & fallible allocation

• vec: add try_* methods and a try_vec! macro to make Vec usable in without infallible allocation methods rust-lang/rust#95051
• Add support for allocators in Rc & Arc rust-lang/rust#89132

Misc

• Add round_ties_even to f32 and f64 rust-lang/rust#95317

Waiting stabilization

• Tracking Issue for mutex_unpoison rust-lang/rust#96469
• Stabilize arbitrary_enum_discriminant, take 2 rust-lang/rust#95710
• Stabilize const_ptr_offset_from. rust-lang/rust#96240