[INFO] cloning repository https://github.com/graves/awful_knowledge_synthesizer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/graves/awful_knowledge_synthesizer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgraves%2Fawful_knowledge_synthesizer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgraves%2Fawful_knowledge_synthesizer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] da0cbbe58304a13c12acabd62273cd88c75f4d9a
[INFO] checking graves/awful_knowledge_synthesizer against master#bfc05d6b072585dfd0c792ec1b8728c08a3511fe for pr-154149
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgraves%2Fawful_knowledge_synthesizer" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
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Updating files: 100% (9068/9068), done.
[INFO] started tweaking git repo https://github.com/graves/awful_knowledge_synthesizer
[INFO] finished tweaking git repo https://github.com/graves/awful_knowledge_synthesizer
[INFO] tweaked toml for git repo https://github.com/graves/awful_knowledge_synthesizer written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/graves/awful_knowledge_synthesizer on toolchain bfc05d6b072585dfd0c792ec1b8728c08a3511fe
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bfc05d6b072585dfd0c792ec1b8728c08a3511fe" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/graves/awful_knowledge_synthesizer already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bfc05d6b072585dfd0c792ec1b8728c08a3511fe" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[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