Dec 02 08:54:34.488 INFO testing Cackbone/2048.rs against 1.30.1 for beta-1.31-5
Dec 02 08:54:34.489 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-3/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/beta-1.31-5/1.30.1:/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 +1.30.1 build --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 02 08:54:34.683 INFO [stdout] ba6e03c3b5551218425850962880b9773e99f16754285486fc39035551c185c6
Dec 02 08:54:34.689 INFO running `"docker" "start" "-a" "ba6e03c3b5551218425850962880b9773e99f16754285486fc39035551c185c6"`
Dec 02 08:54:35.979 INFO [stderr] usermod: no changes
Dec 02 08:54:36.075 INFO [stderr]    Compiling rust_2048 v0.1.0 (/source)
Dec 02 08:54:36.692 INFO [stderr] warning: value assigned to `grid_bis` is never read
Dec 02 08:54:36.692 INFO [stderr]   --> src/main.rs:18:13
Dec 02 08:54:36.692 INFO [stderr]    |
Dec 02 08:54:36.692 INFO [stderr] 18 |     let mut grid_bis = [[0i8; 4];4];
Dec 02 08:54:36.692 INFO [stderr]    |             ^^^^^^^^
Dec 02 08:54:36.692 INFO [stderr]    |
Dec 02 08:54:36.692 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Dec 02 08:54:36.692 INFO [stderr] 
Dec 02 08:54:36.700 INFO [stderr] warning: variable does not need to be mutable
Dec 02 08:54:36.700 INFO [stderr]   --> src/main.rs:97:28
Dec 02 08:54:36.700 INFO [stderr]    |
Dec 02 08:54:36.700 INFO [stderr] 97 | fn move_grid(d: Direction, mut grid: &mut [[i8; 4]; 4])
Dec 02 08:54:36.700 INFO [stderr]    |                            ----^^^^
Dec 02 08:54:36.700 INFO [stderr]    |                            |
Dec 02 08:54:36.700 INFO [stderr]    |                            help: remove this `mut`
Dec 02 08:54:36.700 INFO [stderr]    |
Dec 02 08:54:36.700 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 02 08:54:36.700 INFO [stderr] 
Dec 02 08:54:36.702 INFO [stderr] warning: variable does not need to be mutable
Dec 02 08:54:36.702 INFO [stderr]    --> src/main.rs:137:13
Dec 02 08:54:36.702 INFO [stderr]     |
Dec 02 08:54:36.702 INFO [stderr] 137 | fn add_tile(mut grid: &mut [[i8; 4]; 4])
Dec 02 08:54:36.702 INFO [stderr]     |             ----^^^^
Dec 02 08:54:36.702 INFO [stderr]     |             |
Dec 02 08:54:36.702 INFO [stderr]     |             help: remove this `mut`
Dec 02 08:54:36.702 INFO [stderr] 
Dec 02 08:54:36.711 INFO [stderr] warning: unused `std::result::Result` which must be used
Dec 02 08:54:36.711 INFO [stderr]   --> src/main.rs:52:13
Dec 02 08:54:36.711 INFO [stderr]    |
Dec 02 08:54:36.711 INFO [stderr] 52 |             Command::new("clear").status();
Dec 02 08:54:36.711 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 08:54:36.711 INFO [stderr]    |
Dec 02 08:54:36.711 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 02 08:54:36.711 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 02 08:54:36.711 INFO [stderr] 
Dec 02 08:54:36.711 INFO [stderr] warning: unused `std::result::Result` which must be used
Dec 02 08:54:36.711 INFO [stderr]   --> src/main.rs:75:5
Dec 02 08:54:36.711 INFO [stderr]    |
Dec 02 08:54:36.711 INFO [stderr] 75 |     Command::new("clear").status();
Dec 02 08:54:36.711 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 08:54:36.711 INFO [stderr]    |
Dec 02 08:54:36.711 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 02 08:54:36.711 INFO [stderr] 
Dec 02 08:54:37.295 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.28s
Dec 02 08:54:37.303 INFO [stderr] su: No module specific data is present
Dec 02 08:54:37.980 INFO running `"docker" "inspect" "ba6e03c3b5551218425850962880b9773e99f16754285486fc39035551c185c6"`
Dec 02 08:54:38.089 INFO running `"docker" "rm" "-f" "ba6e03c3b5551218425850962880b9773e99f16754285486fc39035551c185c6"`
Dec 02 08:54:38.200 INFO [stdout] ba6e03c3b5551218425850962880b9773e99f16754285486fc39035551c185c6
Dec 02 08:54:38.202 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-3/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/beta-1.31-5/1.30.1:/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 +1.30.1 test --frozen --no-run" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 02 08:54:38.379 INFO [stdout] ebe61c9305aa2a67967af52334379a099268a441e1c130ac66948ae144cfb1d0
Dec 02 08:54:38.384 INFO running `"docker" "start" "-a" "ebe61c9305aa2a67967af52334379a099268a441e1c130ac66948ae144cfb1d0"`
Dec 02 08:54:38.881 INFO [stderr] usermod: no changes
Dec 02 08:54:38.914 INFO [stderr]    Compiling rust_2048 v0.1.0 (/source)
Dec 02 08:54:39.683 INFO [stderr] warning: value assigned to `grid_bis` is never read
Dec 02 08:54:39.683 INFO [stderr]   --> src/main.rs:18:13
Dec 02 08:54:39.683 INFO [stderr]    |
Dec 02 08:54:39.683 INFO [stderr] 18 |     let mut grid_bis = [[0i8; 4];4];
Dec 02 08:54:39.683 INFO [stderr]    |             ^^^^^^^^
Dec 02 08:54:39.683 INFO [stderr]    |
Dec 02 08:54:39.683 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Dec 02 08:54:39.683 INFO [stderr] 
Dec 02 08:54:39.687 INFO [stderr] warning: variable does not need to be mutable
Dec 02 08:54:39.689 INFO [stderr]   --> src/main.rs:97:28
Dec 02 08:54:39.689 INFO [stderr]    |
Dec 02 08:54:39.689 INFO [stderr] 97 | fn move_grid(d: Direction, mut grid: &mut [[i8; 4]; 4])
Dec 02 08:54:39.689 INFO [stderr]    |                            ----^^^^
Dec 02 08:54:39.689 INFO [stderr]    |                            |
Dec 02 08:54:39.689 INFO [stderr]    |                            help: remove this `mut`
Dec 02 08:54:39.689 INFO [stderr]    |
Dec 02 08:54:39.689 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 02 08:54:39.689 INFO [stderr] 
Dec 02 08:54:39.691 INFO [stderr] warning: variable does not need to be mutable
Dec 02 08:54:39.691 INFO [stderr]    --> src/main.rs:137:13
Dec 02 08:54:39.691 INFO [stderr]     |
Dec 02 08:54:39.691 INFO [stderr] 137 | fn add_tile(mut grid: &mut [[i8; 4]; 4])
Dec 02 08:54:39.691 INFO [stderr]     |             ----^^^^
Dec 02 08:54:39.691 INFO [stderr]     |             |
Dec 02 08:54:39.691 INFO [stderr]     |             help: remove this `mut`
Dec 02 08:54:39.691 INFO [stderr] 
Dec 02 08:54:39.699 INFO [stderr] warning: unused `std::result::Result` which must be used
Dec 02 08:54:39.699 INFO [stderr]   --> src/main.rs:52:13
Dec 02 08:54:39.699 INFO [stderr]    |
Dec 02 08:54:39.699 INFO [stderr] 52 |             Command::new("clear").status();
Dec 02 08:54:39.699 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 08:54:39.699 INFO [stderr]    |
Dec 02 08:54:39.699 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 02 08:54:39.699 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 02 08:54:39.699 INFO [stderr] 
Dec 02 08:54:39.699 INFO [stderr] warning: unused `std::result::Result` which must be used
Dec 02 08:54:39.699 INFO [stderr]   --> src/main.rs:75:5
Dec 02 08:54:39.699 INFO [stderr]    |
Dec 02 08:54:39.699 INFO [stderr] 75 |     Command::new("clear").status();
Dec 02 08:54:39.699 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 08:54:39.699 INFO [stderr]    |
Dec 02 08:54:39.699 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 02 08:54:39.699 INFO [stderr] 
Dec 02 08:54:40.051 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.15s
Dec 02 08:54:40.053 INFO [stderr] su: No module specific data is present
Dec 02 08:54:40.396 INFO running `"docker" "inspect" "ebe61c9305aa2a67967af52334379a099268a441e1c130ac66948ae144cfb1d0"`
Dec 02 08:54:40.558 INFO running `"docker" "rm" "-f" "ebe61c9305aa2a67967af52334379a099268a441e1c130ac66948ae144cfb1d0"`
Dec 02 08:54:40.658 INFO [stdout] ebe61c9305aa2a67967af52334379a099268a441e1c130ac66948ae144cfb1d0
Dec 02 08:54:40.660 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-3/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/beta-1.31-5/1.30.1:/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 +1.30.1 test --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 02 08:54:40.903 INFO [stdout] 82c4b0453c2b59aa42c0607c95583fcb41c6fcfcd51b0aeaffc90979f4e0004d
Dec 02 08:54:40.905 INFO running `"docker" "start" "-a" "82c4b0453c2b59aa42c0607c95583fcb41c6fcfcd51b0aeaffc90979f4e0004d"`
Dec 02 08:54:41.382 INFO [stderr] usermod: no changes
Dec 02 08:54:41.415 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
Dec 02 08:54:41.416 INFO [stderr]      Running /target/debug/deps/rust_2048-ecdbcc24f1911368
Dec 02 08:54:41.417 INFO [stdout] 
Dec 02 08:54:41.417 INFO [stdout] running 0 tests
Dec 02 08:54:41.417 INFO [stdout] 
Dec 02 08:54:41.418 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 02 08:54:41.418 INFO [stdout] 
Dec 02 08:54:41.420 INFO [stderr] su: No module specific data is present
Dec 02 08:54:41.843 INFO running `"docker" "inspect" "82c4b0453c2b59aa42c0607c95583fcb41c6fcfcd51b0aeaffc90979f4e0004d"`
Dec 02 08:54:42.192 INFO running `"docker" "rm" "-f" "82c4b0453c2b59aa42c0607c95583fcb41c6fcfcd51b0aeaffc90979f4e0004d"`
Dec 02 08:54:42.325 INFO [stdout] 82c4b0453c2b59aa42c0607c95583fcb41c6fcfcd51b0aeaffc90979f4e0004d
