[INFO] fetching crate sandy 0.2.7...
[INFO] checking sandy-0.2.7 against db8f076d2619ce2585b0380dda06e8da25a40da4 for pr-163699
[INFO] extracting crate sandy 0.2.7 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate sandy 0.2.7
[INFO] finished tweaking crates.io crate sandy 0.2.7
[INFO] tweaked toml for crates.io crate sandy 0.2.7 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate sandy 0.2.7 on toolchain db8f076d2619ce2585b0380dda06e8da25a40da4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+db8f076d2619ce2585b0380dda06e8da25a40da4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+db8f076d2619ce2585b0380dda06e8da25a40da4" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds


overridden task result to prepare-fail:timeout

Caused by:
    0: uncategorized prepare error
    1: no output for 300 seconds