[INFO] fetching crate tokio-copy-with-buffer 0.1.0...
[INFO] testing tokio-copy-with-buffer-0.1.0 against master#ec6f9a5b4413f74386267ef8efc93712c2ce6db6 for pr-155739
[INFO] extracting crate tokio-copy-with-buffer 0.1.0 into /workspace/builds/worker-4-tc1/source


overridden task result to prepare-fail:unknown

Caused by:
    0: uncategorized prepare error
    1: unable to download tokio-copy-with-buffer version 0.1.0
    2: unexpected end of file