[INFO] fetching crate rust_book_tutorial_rpn_calc 0.1.0...
[INFO] testing rust_book_tutorial_rpn_calc-0.1.0 against master#562dee4820c458d823175268e41601d4c060588a for pr-154210
[INFO] extracting crate rust_book_tutorial_rpn_calc 0.1.0 into /workspace/builds/worker-0-tc1/source


overridden task result to prepare-fail:unknown

Caused by:
    0: uncategorized prepare error
    1: unable to download rust_book_tutorial_rpn_calc version 0.1.0
    2: unexpected end of file