Any workarounds for slow compilation?

Hi all

I experience really nasty slowdown which seems to be caused by It leads to about 80-100 sec build time using current nightly Rust. Curiously, incremental builds take even longer.

I also see that that bug was down-prioritized and lives already for a year. It seems that it's no longer in development. Unfortunately, I cannot use boxing to ease that pain.

Any thoughts on this?