[INFO] fetching crate pyon 0.0.0...
[INFO] checking pyon-0.0.0 against master#040e2f8b9ff2d76fbe2146d6003e297ed4532088 for pr-143619
[INFO] extracting crate pyon 0.0.0 into /workspace/builds/worker-4-tc1/source


unable to download pyon version 0.0.0

Caused by:
    unexpected end of file