This is an auto-filled bug because dev-python/pylibacl fails tests.
The issue was originally discovered on ppc64, but it may be reproducible on other arches as well.
Attached build log and emerge --info.
Created attachment 634110 [details]
build log and emerge --info
That's curious. I wouldn't think of PPC64 the kind of arch likely to trigger random segfaults.
Created attachment 636190 [details]
build.log (Talos II)
Same failure on a POWER9 machine with a more recent toolchain.