[INFO] cloning repository https://github.com/howeih/Day-50-Conway-Game-of-Life
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/howeih/Day-50-Conway-Game-of-Life" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhoweih%2FDay-50-Conway-Game-of-Life", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhoweih%2FDay-50-Conway-Game-of-Life'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a7efad2dce0751a46dd7032f6b75d6ba548a0bee
[INFO] checking howeih/Day-50-Conway-Game-of-Life against 1af98b7cdf86932b76182a387f52f1be6f0c1be0 for pr-159706
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhoweih%2FDay-50-Conway-Game-of-Life" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/howeih/Day-50-Conway-Game-of-Life
[INFO] finished tweaking git repo https://github.com/howeih/Day-50-Conway-Game-of-Life
[INFO] tweaked toml for git repo https://github.com/howeih/Day-50-Conway-Game-of-Life written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/howeih/Day-50-Conway-Game-of-Life on toolchain 1af98b7cdf86932b76182a387f52f1be6f0c1be0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1af98b7cdf86932b76182a387f52f1be6f0c1be0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/howeih/Day-50-Conway-Game-of-Life 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" "+1af98b7cdf86932b76182a387f52f1be6f0c1be0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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