Auto merge of #56518 - pietroalbini:stable-additions, r=pietroalbini
[stable] Add a few critical fixes to the 1.31.0 release
This PR cherry-picks the following PRs to stable:
* #56467: Bump stack size to 32MB
* #56486: Propagate all closure requirements to the caller
* #56519: update edition guide
The changes will be included in the final 1.31.0 binary (to avoid a point release). To deploy the build to dev-static the old manifest needs to be removed from the bucket after the PR is merged.
cc @rust-lang/core @rust-lang/release @rust-lang/compiler
r? @alexcrichton
