[INFO] cloning repository https://github.com/JacobHaig/Rust_Elementary_Cellular_Automata
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/JacobHaig/Rust_Elementary_Cellular_Automata" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJacobHaig%2FRust_Elementary_Cellular_Automata", kill_on_drop: false }`
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[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3be58a5ca1f115b47656ced76ec7787574d82eda
[INFO] checking JacobHaig/Rust_Elementary_Cellular_Automata against try#3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f for pr-87248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJacobHaig%2FRust_Elementary_Cellular_Automata" "/workspace/builds/worker-6/source", kill_on_drop: false }`
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[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/JacobHaig/Rust_Elementary_Cellular_Automata on toolchain 3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/JacobHaig/Rust_Elementary_Cellular_Automata
[INFO] finished tweaking git repo https://github.com/JacobHaig/Rust_Elementary_Cellular_Automata
[INFO] tweaked toml for git repo https://github.com/JacobHaig/Rust_Elementary_Cellular_Automata written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/JacobHaig/Rust_Elementary_Cellular_Automata already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "-a" "b63597a04bd47b8609658233fa24fdffcd047468ad84c686603a49d13382d2a4", kill_on_drop: false }`
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[INFO] [stdout] warning: unused variable: `ctx`
[INFO] [stdout]   --> src/state.rs:12:20
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub fn new(mut ctx: &mut Context, rule: i32) -> GameState {
[INFO] [stdout]    |                    ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/state.rs:12:16
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub fn new(mut ctx: &mut Context, rule: i32) -> GameState {
[INFO] [stdout]    |                ----^^^
[INFO] [stdout]    |                |
[INFO] [stdout]    |                help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ctx`
[INFO] [stdout]   --> src/state.rs:12:20
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub fn new(mut ctx: &mut Context, rule: i32) -> GameState {
[INFO] [stdout]    |                    ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/state.rs:12:16
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub fn new(mut ctx: &mut Context, rule: i32) -> GameState {
[INFO] [stdout]    |                ----^^^
[INFO] [stdout]    |                |
[INFO] [stdout]    |                help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 31s
[INFO] running `Command { std: "docker" "inspect" "b63597a04bd47b8609658233fa24fdffcd047468ad84c686603a49d13382d2a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b63597a04bd47b8609658233fa24fdffcd047468ad84c686603a49d13382d2a4", kill_on_drop: false }`
[INFO] [stdout] b63597a04bd47b8609658233fa24fdffcd047468ad84c686603a49d13382d2a4