[Python-buildbots] Current build stuck for four days(!)

[Chris Angelico]

Turns out that this isn't a massive queue of builds happening, but
just one single build.

https://buildbot.python.org/all/#/builders/211/builds/46

The builder is saturating one CPU core and has been doing so for
literally days. I don't think it's going to get anywhere at this
point. Is there a way to bomb the build and tell it to start over?

ChrisA