[INFO] fetching crate polywrap_msgpack 0.1.6-beta.7...
[INFO] testing polywrap_msgpack-0.1.6-beta.7 against master#ebf0cf75d368c035f4c7e7246d203bd469ee4a51 for pr-137940
[INFO] extracting crate polywrap_msgpack 0.1.6-beta.7 into /workspace/builds/worker-6-tc1/source


unable to download polywrap_msgpack version 0.1.6-beta.7

Caused by:
    unexpected end of file