[INFO] cloning repository https://github.com/zgrannan/rust-lints
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/zgrannan/rust-lints" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzgrannan%2Frust-lints", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzgrannan%2Frust-lints'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fbab1747a308d98ead256434d42d6ce9c4cff269
[INFO] checking zgrannan/rust-lints/fbab1747a308d98ead256434d42d6ce9c4cff269 against master#c756124775121dea0e640652c5ee3c89e3dd0eb4 for pr-154971
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzgrannan%2Frust-lints" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/zgrannan/rust-lints
[INFO] finished tweaking git repo https://github.com/zgrannan/rust-lints
[INFO] tweaked toml for git repo https://github.com/zgrannan/rust-lints written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/zgrannan/rust-lints on toolchain c756124775121dea0e640652c5ee3c89e3dd0eb4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c756124775121dea0e640652c5ee3c89e3dd0eb4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/zgrannan/rust-lints 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" "+c756124775121dea0e640652c5ee3c89e3dd0eb4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: /workspace/builds/worker-0-tc1/source/long_path/Cargo.toml: unused manifest key: dependencies.clippy_utils.subdirectory
[INFO] [stderr] warning: /workspace/builds/worker-0-tc1/source/redundant_enum_variant/Cargo.toml: unused manifest key: dependencies.clippy_utils.subdirectory
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating git repository `https://github.com/rust-lang/rust`
[INFO] [stderr]     Updating git submodule `https://github.com/rust-lang/backtrace-rs.git`
[INFO] [stderr]     Updating git submodule `https://github.com/rust-lang/book.git`
[INFO] [stderr]     Updating git submodule `https://github.com/rust-lang/edition-guide.git`
[INFO] [stderr]     Updating git submodule `https://github.com/rust-embedded/book.git`
[INFO] [stderr]     Updating git submodule `https://github.com/rust-lang/nomicon.git`
[INFO] [stderr]     Updating git submodule `https://github.com/rust-lang/reference.git`
[INFO] [stderr]     Updating git submodule `https://github.com/rust-lang/rust-by-example.git`
[INFO] [stderr]     Updating git submodule `https://github.com/rust-lang/gcc.git`
[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