[INFO] fetching crate span 0.1.0...
[INFO] testing span-0.1.0 against master#552a959051cebf8f88a8f558399baf733bec9ce0 for pr-136932
[INFO] extracting crate span 0.1.0 into /workspace/builds/worker-7-tc1/source


unable to download span version 0.1.0

Caused by:
    unexpected end of file