The building where the perl.org datacenter is hosted was performing safety tests today that involved running on generator power for a few hours. No problems were expected, as our UPS would have (and did) covered the transition. And then a fuel pump failed in one of the generators, requiring it to be shut down, resulting in us losing power.
Several machines didn't come back up. So if your favorite perl.org service isn't available or isn't working right today, that's why.
Ask is on his way to the datacenter to get things sorted. We'll update this blog as we have more information.