[INFO] fetching crate proc-singleton 0.2.0...
[INFO] checking proc-singleton-0.2.0 against master#fc5af1813307d25a84d633f21e2e53c9376eb547 for pr-144386
[INFO] extracting crate proc-singleton 0.2.0 into /workspace/builds/worker-6-tc1/source


unable to download proc-singleton version 0.2.0

Caused by:
    unexpected end of file