[INFO] fetching crate os-core 0.2.0...
[INFO] testing os-core-0.2.0 against 1.95.0 for beta-1.96-1
[INFO] extracting crate os-core 0.2.0 into /workspace/builds/worker-5-tc1/source


overridden task result to prepare-fail:unknown

Caused by:
    0: uncategorized prepare error
    1: unable to download os-core version 0.2.0
    2: unexpected end of file