[INFO] fetching crate vc-holder 0.1.0-alpha...
[INFO] testing vc-holder-0.1.0-alpha against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210
[INFO] extracting crate vc-holder 0.1.0-alpha into /workspace/builds/worker-2-tc2/source
[INFO] testing vc-holder-0.1.0-alpha against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210
[INFO] extracting crate vc-holder 0.1.0-alpha into /workspace/builds/worker-2-tc2/source
[INFO] testing vc-holder-0.1.0-alpha against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210
[INFO] extracting crate vc-holder 0.1.0-alpha into /workspace/builds/worker-2-tc2/source
[INFO] testing vc-holder-0.1.0-alpha against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210
[INFO] extracting crate vc-holder 0.1.0-alpha into /workspace/builds/worker-2-tc2/source
[INFO] testing vc-holder-0.1.0-alpha against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210
[INFO] extracting crate vc-holder 0.1.0-alpha into /workspace/builds/worker-2-tc2/source


overridden task result to prepare-fail:unknown

Caused by:
    0: uncategorized prepare error
    1: unable to download vc-holder version 0.1.0-alpha
    2: unexpected end of file