[INFO] fetching crate openrtb 0.2.1...
[INFO] testing openrtb-0.2.1 against 1.95.0 for beta-1.96-1
[INFO] extracting crate openrtb 0.2.1 into /workspace/builds/worker-2-tc1/source


overridden task result to prepare-fail:unknown

Caused by:
    0: uncategorized prepare error
    1: unable to download openrtb version 0.2.1
    2: failed to unpack `openrtb-0.2.1/src/v2_5/bid_request.rs` into `/workspace/builds/worker-2-tc1/source/src/v2_5/bid_request.rs`
    3: No space left on device (os error 28)