[INFO] fetching crate delta 0.2.1...
[INFO] checking delta-0.2.1 against master#9bfa31f632912180dc742809bcc51a97f2d7079d for pr-140151
[INFO] extracting crate delta 0.2.1 into /workspace/builds/worker-2-tc1/source


unable to download delta version 0.2.1

Caused by:
    unexpected end of file