[INFO] fetching crate tokio-core 0.1.18...
[INFO] testing tokio-core-0.1.18 against master#ec6f9a5b4413f74386267ef8efc93712c2ce6db6 for pr-155739
[INFO] extracting crate tokio-core 0.1.18 into /workspace/builds/worker-3-tc1/source


overridden task result to prepare-fail:unknown

Caused by:
    0: uncategorized prepare error
    1: unable to download tokio-core version 0.1.18
    2: failed to unpack `tokio-core-0.1.18/README.md` into `/workspace/builds/worker-3-tc1/source/README.md`
    3: No space left on device (os error 28)