https://github.com/rust-lang/wg-traits/tree/master/minutes
https://github.com/rust-lang/lang-team/tree/master/minutes
https://rust-lang.github.io/compiler-team/
There's a youtube channel too. (Also start here: https://blog.rust-lang.org/inside-rust/2020/03/28/traits-spr... )
The important thing is the `chalk` work. And basically the rust-analyzer approach drives that.
Hah, this branch PR got merged 6 days ago into rust master: https://github.com/rust-lang/rust/pull/69406