[INFO] cloning repository https://github.com/syetti/rust_rollback
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/syetti/rust_rollback" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsyetti%2Frust_rollback", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsyetti%2Frust_rollback'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9261ba7854a0cdfd465fc6f704353a8da90733d6
[INFO] checking syetti/rust_rollback against 018018e881e2db0956f229dbb543e21f058d1ce7 for pr-162600
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsyetti%2Frust_rollback" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/syetti/rust_rollback
[INFO] finished tweaking git repo https://github.com/syetti/rust_rollback
[INFO] tweaked toml for git repo https://github.com/syetti/rust_rollback written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/syetti/rust_rollback 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/syetti/rust_rollback 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: binary `rust_rollback` should have a kebab-case name
[INFO] [stderr]    |
[INFO] [stderr]  1 | /workspace/builds/worker-4-tc1/source/target/.../rust_rollback
[INFO] [stderr]    |                                                  ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::non_kebab_case_bins` is set to `warn` by default
[INFO] [stderr] help: to change the binary name to `rust-rollback`, convert `package.name`
[INFO] [stderr]   --> Cargo.toml:17:8
[INFO] [stderr]    |
[INFO] [stderr] 17 - name = "rust_rollback"
[INFO] [stderr] 17 + name = "rust-rollback"
[INFO] [stderr]    |
[INFO] [stderr] help: to change the binary name to `rust-rollback`, specify `bin.name`
[INFO] [stderr]   --> Cargo.toml:29:19
[INFO] [stderr]    |
[INFO] [stderr] 29 ~ strip = "symbols"
[INFO] [stderr] 30 + [[bin]]
[INFO] [stderr] 31 + name = "rust-rollback"
[INFO] [stderr] 32 + path = "src/main.rs"
[INFO] [stderr]    |
[INFO] [stderr] warning: `rust_rollback` (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