Test failures:

• https://k8s-testgrid.appspot.com/sig-node-containerd#containerd-e2e-gci
• https://k8s-testgrid.appspot.com/sig-node-containerd#containerd-e2e-ubuntu

Suspicious PRs based on the fact the failure started after 1/15/2019 8:21am before 1/15/2019 9:23am:

• 804faea
• 96f306e

One of the test failure is also attach related, which is similar with #2937.

96f306e seems unrelated to me. I think it is the ttrpc update. @crosbymichael @cpuguy83