[INFO] fetching crate mcl_derive 0.5.0-alpha...
[INFO] checking mcl_derive-0.5.0-alpha against master#a9e7b30487235621751cc628f170c0f15fb215c4 for pr-136539
[INFO] extracting crate mcl_derive 0.5.0-alpha into /workspace/builds/worker-0-tc1/source


unable to download mcl_derive version 0.5.0-alpha

Caused by:
    unexpected end of file