Created attachment 699870 [details]
net-misc/curl failure is not related, please ignore.
Notice that packages emerge fine until dev-python/pypy3 is upgraded, then the next package (mesa) dies in pretend phase with "AssertionError: SRE module mismatch".
All later packages fail without a log.
Created attachment 699873 [details]
pypy3 merge log
Notice "AssertionError: SRE module mismatch" errors in phases after install.
Created attachment 699879 [details]
Mesa was the package scheduled for merging after pypy3, here is its log.
No other packages after this one had a log, as seen in the emerge output attachment.
I should note that running the original emerge command a second time was successful, so it might be something to do with upgrading pypy3 while it is in use.