[INFO] fetching crate optional-field 0.1.6...
[INFO] checking optional-field-0.1.6 against master#8365fcb2b840c95eeb0bc377af8bd498fad22245 for pr-145604
[INFO] extracting crate optional-field 0.1.6 into /workspace/builds/worker-6-tc1/source


unable to download optional-field version 0.1.6

Caused by:
    unexpected end of file