[INFO] fetching crate persistent 0.4.0...
[INFO] testing persistent-0.4.0 against master#ebf0cf75d368c035f4c7e7246d203bd469ee4a51 for pr-137940
[INFO] extracting crate persistent 0.4.0 into /workspace/builds/worker-2-tc1/source


unable to download persistent version 0.4.0

Caused by:
    unexpected end of file