Dec 12 01:25:40.629 INFO checking Meyhem/rust-sdl2-gol against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 12 01:25:40.629 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-5/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56677/master#3a75e80557a103497cffbcab395a2f37061a77ea:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +3a75e80557a103497cffbcab395a2f37061a77ea-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 12 01:25:41.153 INFO [stdout] df18f0b3820627d8827469c3d6d0528b5d5f002a6aa09a6b1296b73ad72e34f8
Dec 12 01:25:41.155 INFO running `"docker" "start" "-a" "df18f0b3820627d8827469c3d6d0528b5d5f002a6aa09a6b1296b73ad72e34f8"`
Dec 12 01:25:43.667 INFO [stderr] usermod: no changes
Dec 12 01:25:43.837 INFO [stderr]    Compiling sdl2-sys v0.32.1
Dec 12 01:25:47.886 INFO [stderr]     Checking sdl2 v0.32.0-beta.2
Dec 12 01:25:51.592 INFO [stderr]     Checking rust-sdl2-gol v0.1.0 (/source)
Dec 12 01:25:52.869 INFO [stderr] warning: value assigned to `current_tick` is never read
Dec 12 01:25:52.869 INFO [stderr]   --> src/main.rs:82:13
Dec 12 01:25:52.869 INFO [stderr]    |
Dec 12 01:25:52.869 INFO [stderr] 82 |     let mut current_tick = Instant::now();
Dec 12 01:25:52.869 INFO [stderr]    |             ^^^^^^^^^^^^
Dec 12 01:25:52.869 INFO [stderr]    |
Dec 12 01:25:52.869 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Dec 12 01:25:52.869 INFO [stderr] 
Dec 12 01:25:52.903 INFO [stderr] warning: method is never used: `dump_matrix`
Dec 12 01:25:52.903 INFO [stderr]   --> src/life_engine.rs:93:5
Dec 12 01:25:52.903 INFO [stderr]    |
Dec 12 01:25:52.903 INFO [stderr] 93 |     pub fn dump_matrix(&self) {
Dec 12 01:25:52.903 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 01:25:52.905 INFO [stderr]    |
Dec 12 01:25:52.905 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 12 01:25:52.905 INFO [stderr] 
Dec 12 01:25:52.990 INFO [stderr] warning: value assigned to `current_tick` is never read
Dec 12 01:25:52.990 INFO [stderr]   --> src/main.rs:82:13
Dec 12 01:25:52.991 INFO [stderr]    |
Dec 12 01:25:52.991 INFO [stderr] 82 |     let mut current_tick = Instant::now();
Dec 12 01:25:53.008 INFO [stderr]    |             ^^^^^^^^^^^^
Dec 12 01:25:53.009 INFO [stderr]    |
Dec 12 01:25:53.009 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Dec 12 01:25:53.009 INFO [stderr] 
Dec 12 01:25:53.027 INFO [stderr] warning: method is never used: `dump_matrix`
Dec 12 01:25:53.027 INFO [stderr]   --> src/life_engine.rs:93:5
Dec 12 01:25:53.027 INFO [stderr]    |
Dec 12 01:25:53.027 INFO [stderr] 93 |     pub fn dump_matrix(&self) {
Dec 12 01:25:53.027 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 01:25:53.027 INFO [stderr]    |
Dec 12 01:25:53.027 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 12 01:25:53.027 INFO [stderr] 
Dec 12 01:25:53.057 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.36s
Dec 12 01:25:53.092 INFO [stderr] su: No module specific data is present
Dec 12 01:25:54.091 INFO running `"docker" "inspect" "df18f0b3820627d8827469c3d6d0528b5d5f002a6aa09a6b1296b73ad72e34f8"`
Dec 12 01:25:54.392 INFO running `"docker" "rm" "-f" "df18f0b3820627d8827469c3d6d0528b5d5f002a6aa09a6b1296b73ad72e34f8"`
Dec 12 01:25:54.668 INFO [stdout] df18f0b3820627d8827469c3d6d0528b5d5f002a6aa09a6b1296b73ad72e34f8