[INFO] fetching crate buttboost 0.0.1-alpha.0...
[INFO] checking buttboost-0.0.1-alpha.0 against master#e3e432d4d65a55e6db167598e96db2bcb163e316 for pr-140313
[INFO] extracting crate buttboost 0.0.1-alpha.0 into /workspace/builds/worker-3-tc1/source


unable to download buttboost version 0.0.1-alpha.0

Caused by:
    unexpected end of file