[INFO] fetching crate contextual 0.1.6...
[INFO] checking contextual-0.1.6 against master#613bdd49978298648ed05ace086bd1ecad54b44a for pr-136458
[INFO] extracting crate contextual 0.1.6 into /workspace/builds/worker-7-tc1/source


unable to download contextual version 0.1.6

Caused by:
    unexpected end of file