[INFO] cloning repository https://github.com/clearviewai/msgpack-numpy-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/clearviewai/msgpack-numpy-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fclearviewai%2Fmsgpack-numpy-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fclearviewai%2Fmsgpack-numpy-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 87af48ea9f325069f7bc6932ecdac5a1e94d5888
[INFO] checking clearviewai/msgpack-numpy-rs against master#12f35ad39ed3e39df4d953c46d4f6cc6c82adc96 for pr-155299
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fclearviewai%2Fmsgpack-numpy-rs" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/clearviewai/msgpack-numpy-rs
[INFO] finished tweaking git repo https://github.com/clearviewai/msgpack-numpy-rs
[INFO] tweaked toml for git repo https://github.com/clearviewai/msgpack-numpy-rs written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/clearviewai/msgpack-numpy-rs on toolchain 12f35ad39ed3e39df4d953c46d4f6cc6c82adc96
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+12f35ad39ed3e39df4d953c46d4f6cc6c82adc96" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/clearviewai/msgpack-numpy-rs 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" "+12f35ad39ed3e39df4d953c46d4f6cc6c82adc96" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: file `/workspace/builds/worker-7-tc1/source/benches/bench_serialize_and_deserialize.rs` found to be present in multiple build targets:
[INFO] [stderr]   * `bin` target `bench_serialize_and_deserialize`
[INFO] [stderr]   * `bench` target `bench_serialize_and_deserialize`
[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