Created attachment 630610 [details] emerge --info E fixture 'xprocess' not found
Created attachment 630612 [details] build.log
I'm afraid I can't reproduce this. It's time to stabilize the new version anyway, so could you let me know whether it fixes the problem for you?
I now cannot reproduce it either.
Let's assume the package was having a bad day then, and open a new bug if it happens again.