[INFO] updating cached repository bantic/game_of_life_rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/bantic/game_of_life_rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/bantic/game_of_life_rust" "work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/bantic/game_of_life_rust"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/bantic/game_of_life_rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/bantic/game_of_life_rust" "work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/bantic/game_of_life_rust"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/bantic/game_of_life_rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 1974d86370fb67210052124d927a51bcb5e8ee3e
[INFO] sha for GitHub repo bantic/game_of_life_rust: 1974d86370fb67210052124d927a51bcb5e8ee3e
[INFO] validating manifest of bantic/game_of_life_rust on toolchain master#60960a260f7b5c695fd0717311d72ce62dd4eb43
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of bantic/game_of_life_rust on toolchain try#266783e4e09e4e9d5307c1c8e695659c58bbcac7
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing bantic/game_of_life_rust
[INFO] finished frobbing bantic/game_of_life_rust
[INFO] frobbed toml for bantic/game_of_life_rust written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/bantic/game_of_life_rust/Cargo.toml
[INFO] started frobbing bantic/game_of_life_rust
[INFO] finished frobbing bantic/game_of_life_rust
[INFO] frobbed toml for bantic/game_of_life_rust written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/bantic/game_of_life_rust/Cargo.toml
[INFO] crate bantic/game_of_life_rust already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking bantic/game_of_life_rust against try#266783e4e09e4e9d5307c1c8e695659c58bbcac7 for pr-63376
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-5/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/bantic/game_of_life_rust:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 0843780ac7c9bc2d032b65bc5fe0d287c7c85002ce5f2b90a95e5861abd22c7b
[INFO] running `"docker" "start" "-a" "0843780ac7c9bc2d032b65bc5fe0d287c7c85002ce5f2b90a95e5861abd22c7b"`
[INFO] [stderr]    Compiling serde v1.0.84
[INFO] [stderr]     Checking arc-swap v0.3.7
[INFO] [stderr]    Compiling ncurses v5.98.0
[INFO] [stderr]     Checking rand_os v0.1.1
[INFO] [stderr]     Checking term_size v0.3.1
[INFO] [stderr]    Compiling syn v0.15.24
[INFO] [stderr]     Checking enum-map v0.4.1
[INFO] [stderr]     Checking rand v0.6.4
[INFO] [stderr]     Checking signal-hook v0.1.7
[INFO] [stderr]     Checking parking_lot_core v0.4.0
[INFO] [stderr]     Checking parking_lot v0.7.1
[INFO] [stderr]     Checking crossbeam-channel v0.3.6
[INFO] [stderr]    Compiling enumset_derive v0.2.0
[INFO] [stderr]     Checking enumset v0.3.15
[INFO] [stderr]     Checking toml v0.4.10
[INFO] [stderr]     Checking cursive v0.10.0
[INFO] [stderr]     Checking gol v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: function is never used: `print_grid`
[INFO] [stderr]    --> src/main.rs:102:1
[INFO] [stderr]     |
[INFO] [stderr] 102 | fn print_grid(grid: Grid) {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `print_grid`
[INFO] [stderr]    --> src/main.rs:102:1
[INFO] [stderr]     |
[INFO] [stderr] 102 | fn print_grid(grid: Grid) {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 28.99s
[INFO] running `"docker" "inspect" "0843780ac7c9bc2d032b65bc5fe0d287c7c85002ce5f2b90a95e5861abd22c7b"`
[INFO] running `"docker" "rm" "-f" "0843780ac7c9bc2d032b65bc5fe0d287c7c85002ce5f2b90a95e5861abd22c7b"`
[INFO] [stdout] 0843780ac7c9bc2d032b65bc5fe0d287c7c85002ce5f2b90a95e5861abd22c7b