[INFO] cloning repository https://github.com/cxphong/Class-1---Basic-of-Rust-
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cxphong/Class-1---Basic-of-Rust-" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcxphong%2FClass-1---Basic-of-Rust-", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcxphong%2FClass-1---Basic-of-Rust-'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0e34422007173d0ec3f310e174df1cf45e0bc3dc
[INFO] documenting cxphong/Class-1---Basic-of-Rust- against 1.99.0-beta.8 for beta-rustdoc-1.100
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcxphong%2FClass-1---Basic-of-Rust-" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/cxphong/Class-1---Basic-of-Rust-
[INFO] finished tweaking git repo https://github.com/cxphong/Class-1---Basic-of-Rust-
[INFO] tweaked toml for git repo https://github.com/cxphong/Class-1---Basic-of-Rust- written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/cxphong/Class-1---Basic-of-Rust- on toolchain 1.99.0-beta.8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/cxphong/Class-1---Basic-of-Rust- 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" "+1.99.0-beta.8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: Cargo.toml: unused manifest key: bin.0.src
[INFO] [stderr] warning: Cargo.toml: unused manifest key: src
[INFO] [stderr] warning: `lab-01` (manifest) generated 2 warnings
[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