[INFO] fetching crate core_rustc-serialize 0.3.20-v0.3.19patch1...
[INFO] checking core_rustc-serialize-0.3.20-v0.3.19patch1 against try#9d63f825c0d409b0e1743a2c84b33f86965e5929 for pr-136968
[INFO] extracting crate core_rustc-serialize 0.3.20-v0.3.19patch1 into /workspace/builds/worker-4-tc2/source
[INFO] checking core_rustc-serialize-0.3.20-v0.3.19patch1 against try#9d63f825c0d409b0e1743a2c84b33f86965e5929 for pr-136968
[INFO] extracting crate core_rustc-serialize 0.3.20-v0.3.19patch1 into /workspace/builds/worker-4-tc2/source
[INFO] checking core_rustc-serialize-0.3.20-v0.3.19patch1 against try#9d63f825c0d409b0e1743a2c84b33f86965e5929 for pr-136968
[INFO] extracting crate core_rustc-serialize 0.3.20-v0.3.19patch1 into /workspace/builds/worker-4-tc2/source
[INFO] checking core_rustc-serialize-0.3.20-v0.3.19patch1 against try#9d63f825c0d409b0e1743a2c84b33f86965e5929 for pr-136968
[INFO] extracting crate core_rustc-serialize 0.3.20-v0.3.19patch1 into /workspace/builds/worker-4-tc2/source
[INFO] checking core_rustc-serialize-0.3.20-v0.3.19patch1 against try#9d63f825c0d409b0e1743a2c84b33f86965e5929 for pr-136968
[INFO] extracting crate core_rustc-serialize 0.3.20-v0.3.19patch1 into /workspace/builds/worker-4-tc2/source


unable to download core_rustc-serialize version 0.3.20-v0.3.19patch1

Caused by:
    No space left on device (os error 28)