Rust 1.85.0 released

Version1.85.0 of the Rust language has been released. Changes in the releaseinclude support for async closures, some convenience iterators for tuples,and a number of stabilized APIs. The headline feature, though, is thatthis release stabilizes the Rust 2024edition, described as "the largest edition we have released".The 2024edition guide has a detailed listing of all the changes that wereincorporated this time around.