Don't worry, it's a known bug, there is an open bpo issue for it :-)
It's an old OS and old GCC version. Upgrading the buildbot worker should be enough to fix it.
The compiler fails randomly since at least 1 year.
Le samedi 29 décembre 2018, Pablo Galindo Salgado <firstname.lastname@example.org> a écrit :
> Oh wow, a bug in gcc!!
> Objects/unicodeobject.c: In function ‘unicode_isupper_impl’:
> Objects/unicodeobject.c:15661:1: internal compiler error: in create_edge, at cgraph.c:850
> Please submit a full bug report,
> with preprocessed source if appropriate.
> See <file:///usr/share/doc/gcc-6/README.Bugs> for instructions.
> I wonder if this is because the builder was updating gcc in the middle of this operation, as this looks very suspiciously related to:
> New builds are OK.
> On Wed, 12 Dec 2018 at 03:14, <email@example.com> wrote:
>> The Buildbot has detected a failed build on builder AMD64 Debian PGO 3.7 while building python/cpython.
>> Full details are available at:
>> Buildbot URL: https://buildbot.python.org/all/
>> Worker for this Build: gps-debian-profile-opt
>> Build Reason: <unknown>
>> Blamelist: Ned Deily <firstname.lastname@example.org>
>> BUILD FAILED: failed compile (failure)
>> -The Buildbot
>> Buildbot-status mailing list -- email@example.com
>> To unsubscribe send an email to firstname.lastname@example.org
Night gathers, and now my watch begins. It shall not end until my death.