[INFO] cloning repository https://github.com/zagdrath/library-of-babel
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/zagdrath/library-of-babel" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzagdrath%2Flibrary-of-babel", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzagdrath%2Flibrary-of-babel'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2e81dcd0086e04bd93f87863ff7311f877a83a92
[INFO] checking zagdrath/library-of-babel against 018018e881e2db0956f229dbb543e21f058d1ce7 for pr-162597
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzagdrath%2Flibrary-of-babel" "/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/zagdrath/library-of-babel
[INFO] finished tweaking git repo https://github.com/zagdrath/library-of-babel
[INFO] tweaked toml for git repo https://github.com/zagdrath/library-of-babel written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/zagdrath/library-of-babel on toolchain 018018e881e2db0956f229dbb543e21f058d1ce7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+018018e881e2db0956f229dbb543e21f058d1ce7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/zagdrath/library-of-babel 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" "+018018e881e2db0956f229dbb543e21f058d1ce7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: explicit `package.readme` can be inferred
[INFO] [stderr]   --> Cargo.toml:19:1
[INFO] [stderr]    |
[INFO] [stderr] 19 | readme = "README.md"
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::manual_readme` is set to `warn` by default
[INFO] [stderr] help: consider removing `package.readme`
[INFO] [stderr] warning: `babel` (manifest) generated 1 warning
[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