[INFO] fetching crate si-img 0.5.0...
[INFO] testing si-img-0.5.0 against master#ec6f9a5b4413f74386267ef8efc93712c2ce6db6 for pr-155739
[INFO] extracting crate si-img 0.5.0 into /workspace/builds/worker-4-tc1/source


overridden task result to prepare-fail:unknown

Caused by:
    0: uncategorized prepare error
    1: unable to download si-img version 0.5.0
    2: failed to unpack `si-img-0.5.0/src/lib.rs` into `/workspace/builds/worker-4-tc1/source/src/lib.rs`
    3: No space left on device (os error 28)