[INFO] fetching crate proton 0.0.0...
[INFO] checking proton-0.0.0 against master#64b185eddaa1d7ddf5e0c024be23b9cbba6c1722 for pr-143929
[INFO] extracting crate proton 0.0.0 into /workspace/builds/worker-3-tc1/source


unable to download proton version 0.0.0

Caused by:
    unexpected end of file