crossbeam-epoch release for miri support?

[Imberflur]

It looks like tree borrows doesn't support int2ptr casts and this is now enforced in miri rust-lang/miri#4109.

Since crossbeam-epoch doesn't work with SB right now and the latest release doesn't include int2ptr removal from #796, I can't find any way to run miri with an aliasing model in projects that depend on this. In my case, I believe the dependency is via rayon.

A release of crossbeam-epoch with these changes seems like it would address my issue. Although, I understand it will be breaking change, so I'm not sure how easy this will be.

[taiki-e]

The breaking changes we want to include in the next breaking release have been completed in the master branch with the exception of #946, so we can release crossbeam-epoch 0.10 when #946 is implemented.

(We will probably postpone #871 which is another open braking change proposal as said in #871 (comment).)