Travis failure due to "disk quota exceeded"

[jeehoonkang]

Failure for #43: https://travis-ci.org/crossbeam-rs/crossbeam-epoch/jobs/307321581

Worker information
hostname: 35e2f4c1-1904-4473-ad74-88cd5057ba23@1.i-0c83b98-production-2-worker-org-ec2.travisci.net
version: v3.4.0 https://github.com/travis-ci/worker/tree/ce0440bc30c289a49a9b0c21e4e1e6f7d7825101
instance: f176a01 travisci/ci-garnet:packer-1503972846 (via amqp)
startup: 6.573325344s
oci runtime error: exec failed: container_linux.go:265: starting container process caused "could not create session key: disk quota exceeded"

[ghost]

It's just a random glitch in Travis. Clicking "Restart job" fixed the problem. :)