Comment 7 for bug 1950268

On retry a few recovered as expected - dovcot and libreoffice
Asterisk is a non related installability issue and actually always failed.

But plv8 continued to fail and looked suspicious.
Running that in local autopkgtest VMs with and without the new PPA for comparison.

History LGTM
https://autopkgtest.ubuntu.com/packages/p/plv8/bionic/ppc64el

New tests fail reliably
https://autopkgtest.ubuntu.com/results/autopkgtest-bionic-ci-train-ppa-service-4705/bionic/ppc64el/p/plv8/20211110_100157_2e92e@/log.gz
https://autopkgtest.ubuntu.com/results/autopkgtest-bionic-ci-train-ppa-service-4705/bionic/ppc64el/p/plv8/20211110_135629_6fce0@/log.gz
https://autopkgtest.ubuntu.com/results/autopkgtest-bionic-ci-train-ppa-service-4705/bionic/ppc64el/p/plv8/20211110_135634_ece63@/log.gz

The upstream https://github.com/plv8/plv8 is at a much newer version nowadays.
And removed from Debian/Ubuntu since a long time (for issues with v8 AFAIK).

It is clearly working on non ppc64 and even on a ppc64 bare metal retry was fine.
I have asked upstream if they can make sense of it, but will probably file a test hint-for if no solution comes up.