[INFO] fetching crate ser_der 0.1.0-alpha.1...
[INFO] testing ser_der-0.1.0-alpha.1 against master#ebf0cf75d368c035f4c7e7246d203bd469ee4a51 for pr-137940
[INFO] extracting crate ser_der 0.1.0-alpha.1 into /workspace/builds/worker-0-tc1/source


unable to download ser_der version 0.1.0-alpha.1

Caused by:
    unexpected end of file