Rust v1 56 0 is out with release of Rust 2021 edition

Question

Rust v1 56 0 is out with release of Rust 2021 edition <https blog rust lang org 2021 10 21 Rust 1 56 0 html>

fast-nail-55400 · Answer

and Pants upgrade to v1 56 0 but not 2021 edition here <https github com pantsbuild pants pull 13321>

fast-nail-55400 · Answer

also apparently includes an upgrade to LLVM 13