[INFO] fetching crate sweep-bptree 0.4.1...
[INFO] testing sweep-bptree-0.4.1 against master#ec6f9a5b4413f74386267ef8efc93712c2ce6db6 for pr-155739
[INFO] extracting crate sweep-bptree 0.4.1 into /workspace/builds/worker-3-tc1/source


overridden task result to prepare-fail:unknown

Caused by:
    0: uncategorized prepare error
    1: unable to download sweep-bptree version 0.4.1
    2: failed to unpack `sweep-bptree-0.4.1/src/tree/iterator.rs` into `/workspace/builds/worker-3-tc1/source/src/tree/iterator.rs`
    3: No space left on device (os error 28)