build127-b1 seems to be having issues

Builders failed on: 
- Mac Air 10.11 Perf: 
  https://build.chromium.org/p/chromium.perf/builders/Mac%20Air%2010.11%20Perf

The bot seems to fall offline a lot after running a task. Not exactly sure why? And it seems to die during tasks a lot. The task history for the bot https://chromium-swarm.appspot.com/bot?id=build127-b1&show_all_events=true&sort_stats=total%3Adesc is a bit deceiving, because it doesn't show all the expired tasks.


battor.steady_state on Intel GPU on Mac/Mac-10.11/ccfd12491a/Mac Air 10.11 Perf/1502	11/9/2017, 8:47:26 AM (PST)	7m 40s	SUCCESS
system_health.common_desktop.reference on Intel GPU on Mac/Mac-10.11/28c7903ae2/Mac Air 10.11 Perf/1499	11/8/2017, 1:42:27 AM (PST)	54m 41s	BOT_DIED

is in the task history though. It seems to have died running a task, and then taken forever to reboot.