[INFO] fetching crate superscript 0.2.3...
[INFO] testing superscript-0.2.3 against master#562dee4820c458d823175268e41601d4c060588a for pr-154210
[INFO] extracting crate superscript 0.2.3 into /workspace/builds/worker-3-tc1/source


overridden task result to prepare-fail:unknown

Caused by:
    0: uncategorized prepare error
    1: unable to download superscript version 0.2.3
    2: failed to unpack `superscript-0.2.3/src/lib.rs` into `/workspace/builds/worker-3-tc1/source/src/lib.rs`
    3: No space left on device (os error 28)