[INFO] cloning repository https://github.com/Sumoren/game_of_life
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Sumoren/game_of_life" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSumoren%2Fgame_of_life", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSumoren%2Fgame_of_life'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6379538aca0bb1de4c1e09245590cceb2a5e493d
[INFO] checking Sumoren/game_of_life against master#c1feb3eceef7d5f0126c309a87062cf413fe0a25 for pr-121053
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSumoren%2Fgame_of_life" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Sumoren/game_of_life on toolchain c1feb3eceef7d5f0126c309a87062cf413fe0a25
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c1feb3eceef7d5f0126c309a87062cf413fe0a25" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Sumoren/game_of_life
[INFO] finished tweaking git repo https://github.com/Sumoren/game_of_life
[INFO] tweaked toml for git repo https://github.com/Sumoren/game_of_life written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Sumoren/game_of_life 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" "+c1feb3eceef7d5f0126c309a87062cf413fe0a25" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[ERROR] this task or one of its parent failed!
[ERROR] no output for 300 seconds
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] checking Sumoren/game_of_life against try#0d3c0c4551bd9d6b6a4bd51e251b596e0195adf5 for pr-121053
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSumoren%2Fgame_of_life" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Sumoren/game_of_life on toolchain 0d3c0c4551bd9d6b6a4bd51e251b596e0195adf5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0d3c0c4551bd9d6b6a4bd51e251b596e0195adf5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Sumoren/game_of_life
[INFO] finished tweaking git repo https://github.com/Sumoren/game_of_life
[INFO] tweaked toml for git repo https://github.com/Sumoren/game_of_life written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/Sumoren/game_of_life 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" "+0d3c0c4551bd9d6b6a4bd51e251b596e0195adf5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking Sumoren/game_of_life against try#0d3c0c4551bd9d6b6a4bd51e251b596e0195adf5 for pr-121053
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSumoren%2Fgame_of_life" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Sumoren/game_of_life on toolchain 0d3c0c4551bd9d6b6a4bd51e251b596e0195adf5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0d3c0c4551bd9d6b6a4bd51e251b596e0195adf5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Sumoren/game_of_life
[INFO] finished tweaking git repo https://github.com/Sumoren/game_of_life
[INFO] tweaked toml for git repo https://github.com/Sumoren/game_of_life written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/Sumoren/game_of_life 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" "+0d3c0c4551bd9d6b6a4bd51e251b596e0195adf5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+0d3c0c4551bd9d6b6a4bd51e251b596e0195adf5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a5b562ba195ee0311459efd3639f018fd109de4f134c431a3bdf2c81dd97f1a4
[INFO] running `Command { std: "docker" "start" "-a" "a5b562ba195ee0311459efd3639f018fd109de4f134c431a3bdf2c81dd97f1a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a5b562ba195ee0311459efd3639f018fd109de4f134c431a3bdf2c81dd97f1a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5b562ba195ee0311459efd3639f018fd109de4f134c431a3bdf2c81dd97f1a4", kill_on_drop: false }`
[INFO] [stdout] a5b562ba195ee0311459efd3639f018fd109de4f134c431a3bdf2c81dd97f1a4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+0d3c0c4551bd9d6b6a4bd51e251b596e0195adf5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3ba1df8009a0a6c75e80d9e611257ec9d555f717ff4cdf7f644becafe1ce1715
[INFO] running `Command { std: "docker" "start" "-a" "3ba1df8009a0a6c75e80d9e611257ec9d555f717ff4cdf7f644becafe1ce1715", kill_on_drop: false }`
[INFO] [stderr]     Checking game_of_life v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/gol/simulation.rs:51:30
[INFO] [stdout]    |
[INFO] [stdout] 51 |     fn get_next_state(&self, i: usize) -> State {
[INFO] [stdout]    |                              ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `off_grid` is never read
[INFO] [stdout]  --> src/gol/simulation.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct Simulation {
[INFO] [stdout]   |            ---------- field in this struct
[INFO] [stdout] 8 |     grid: Vec<State>,
[INFO] [stdout] 9 |     off_grid: Vec<State>,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new_from_state`, `get_state_at`, `tick`, and `get_next_state` are never used
[INFO] [stdout]   --> src/gol/simulation.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl Simulation {
[INFO] [stdout]    | --------------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 22 |     pub fn new_from_state(initial_state: &[State]) -> Simulation{
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 35 |     pub fn get_state_at(&self, column: usize, line: usize) -> State {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 43 |     pub fn tick(&mut self) {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 51 |     fn get_next_state(&self, i: usize) -> State {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/gol/simulation.rs:51:30
[INFO] [stdout]    |
[INFO] [stdout] 51 |     fn get_next_state(&self, i: usize) -> State {
[INFO] [stdout]    |                              ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] running `Command { std: "docker" "inspect" "3ba1df8009a0a6c75e80d9e611257ec9d555f717ff4cdf7f644becafe1ce1715", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ba1df8009a0a6c75e80d9e611257ec9d555f717ff4cdf7f644becafe1ce1715", kill_on_drop: false }`
[INFO] [stdout] 3ba1df8009a0a6c75e80d9e611257ec9d555f717ff4cdf7f644becafe1ce1715