[INFO] fetching crate blacken 0.0.1...
[INFO] checking blacken-0.0.1 against try#81185c2d21df0ba45fd33e65bbdce76dc0d89bd9 for pr-139646
[INFO] extracting crate blacken 0.0.1 into /workspace/builds/worker-0-tc2/source
[INFO] checking blacken-0.0.1 against try#81185c2d21df0ba45fd33e65bbdce76dc0d89bd9 for pr-139646
[INFO] extracting crate blacken 0.0.1 into /workspace/builds/worker-0-tc2/source
[INFO] checking blacken-0.0.1 against try#81185c2d21df0ba45fd33e65bbdce76dc0d89bd9 for pr-139646
[INFO] extracting crate blacken 0.0.1 into /workspace/builds/worker-0-tc2/source
[INFO] checking blacken-0.0.1 against try#81185c2d21df0ba45fd33e65bbdce76dc0d89bd9 for pr-139646
[INFO] extracting crate blacken 0.0.1 into /workspace/builds/worker-0-tc2/source
[INFO] checking blacken-0.0.1 against try#81185c2d21df0ba45fd33e65bbdce76dc0d89bd9 for pr-139646
[INFO] extracting crate blacken 0.0.1 into /workspace/builds/worker-0-tc2/source


unable to download blacken version 0.0.1

Caused by:
    unexpected end of file