[INFO] fetching crate flatten_structs 0.1.0...
[INFO] testing flatten_structs-0.1.0 against master#562dee4820c458d823175268e41601d4c060588a for pr-154210
[INFO] extracting crate flatten_structs 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 flatten_structs version 0.1.0
    2: unexpected end of file