Dec 02 08:54:20.021 INFO testing Cackbone/2048.rs against master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61 for beta-1.31-5
Dec 02 08:54:20.022 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-3/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/beta-1.31-5/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/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 +8940af3cea4a9a9deabcaf843b2f8cad9a83fc61-alt 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 08:54:20.755 INFO [stdout] ef37b6017dbdeb27e04c18dca5ad872a675ed7254fbd8f4b7f67b805f0abf888
Dec 02 08:54:20.757 INFO running `"docker" "start" "-a" "ef37b6017dbdeb27e04c18dca5ad872a675ed7254fbd8f4b7f67b805f0abf888"`
Dec 02 08:54:21.657 INFO [stderr] usermod: no changes
Dec 02 08:54:21.715 INFO [stderr]    Compiling rust_2048 v0.1.0 (/source)
Dec 02 08:54:22.451 INFO [stderr] warning: value assigned to `grid_bis` is never read
Dec 02 08:54:22.451 INFO [stderr]   --> src/main.rs:18:13
Dec 02 08:54:22.451 INFO [stderr]    |
Dec 02 08:54:22.451 INFO [stderr] 18 |     let mut grid_bis = [[0i8; 4];4];
Dec 02 08:54:22.451 INFO [stderr]    |             ^^^^^^^^
Dec 02 08:54:22.451 INFO [stderr]    |
Dec 02 08:54:22.451 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Dec 02 08:54:22.451 INFO [stderr] 
Dec 02 08:54:22.453 INFO [stderr] warning: variable does not need to be mutable
Dec 02 08:54:22.453 INFO [stderr]   --> src/main.rs:97:28
Dec 02 08:54:22.453 INFO [stderr]    |
Dec 02 08:54:22.453 INFO [stderr] 97 | fn move_grid(d: Direction, mut grid: &mut [[i8; 4]; 4])
Dec 02 08:54:22.453 INFO [stderr]    |                            ----^^^^
Dec 02 08:54:22.453 INFO [stderr]    |                            |
Dec 02 08:54:22.453 INFO [stderr]    |                            help: remove this `mut`
Dec 02 08:54:22.453 INFO [stderr]    |
Dec 02 08:54:22.456 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 02 08:54:22.456 INFO [stderr] 
Dec 02 08:54:22.456 INFO [stderr] warning: variable does not need to be mutable
Dec 02 08:54:22.456 INFO [stderr]    --> src/main.rs:137:13
Dec 02 08:54:22.456 INFO [stderr]     |
Dec 02 08:54:22.456 INFO [stderr] 137 | fn add_tile(mut grid: &mut [[i8; 4]; 4])
Dec 02 08:54:22.456 INFO [stderr]     |             ----^^^^
Dec 02 08:54:22.456 INFO [stderr]     |             |
Dec 02 08:54:22.456 INFO [stderr]     |             help: remove this `mut`
Dec 02 08:54:22.456 INFO [stderr] 
Dec 02 08:54:22.469 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 02 08:54:22.469 INFO [stderr]   --> src/main.rs:52:13
Dec 02 08:54:22.469 INFO [stderr]    |
Dec 02 08:54:22.469 INFO [stderr] 52 |             Command::new("clear").status();
Dec 02 08:54:22.469 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 08:54:22.469 INFO [stderr]    |
Dec 02 08:54:22.469 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 02 08:54:22.469 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 02 08:54:22.469 INFO [stderr] 
Dec 02 08:54:22.469 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 02 08:54:22.469 INFO [stderr]   --> src/main.rs:75:5
Dec 02 08:54:22.469 INFO [stderr]    |
Dec 02 08:54:22.469 INFO [stderr] 75 |     Command::new("clear").status();
Dec 02 08:54:22.469 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 08:54:22.469 INFO [stderr]    |
Dec 02 08:54:22.469 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 02 08:54:22.469 INFO [stderr] 
Dec 02 08:54:23.407 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.73s
Dec 02 08:54:23.411 INFO [stderr] su: No module specific data is present
Dec 02 08:54:23.933 INFO running `"docker" "inspect" "ef37b6017dbdeb27e04c18dca5ad872a675ed7254fbd8f4b7f67b805f0abf888"`
Dec 02 08:54:24.221 INFO running `"docker" "rm" "-f" "ef37b6017dbdeb27e04c18dca5ad872a675ed7254fbd8f4b7f67b805f0abf888"`
Dec 02 08:54:24.535 INFO [stdout] ef37b6017dbdeb27e04c18dca5ad872a675ed7254fbd8f4b7f67b805f0abf888
Dec 02 08:54:24.541 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-3/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/beta-1.31-5/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/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 +8940af3cea4a9a9deabcaf843b2f8cad9a83fc61-alt 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 08:54:24.975 INFO [stdout] 2815f642a05cfbd07a9746df3da0a71ff244926758b3fe0a44c5b87fa878ee83
Dec 02 08:54:24.978 INFO running `"docker" "start" "-a" "2815f642a05cfbd07a9746df3da0a71ff244926758b3fe0a44c5b87fa878ee83"`
Dec 02 08:54:26.942 INFO [stderr] usermod: no changes
Dec 02 08:54:27.003 INFO [stderr]    Compiling rust_2048 v0.1.0 (/source)
Dec 02 08:54:27.939 INFO [stderr] warning: value assigned to `grid_bis` is never read
Dec 02 08:54:27.939 INFO [stderr]   --> src/main.rs:18:13
Dec 02 08:54:27.939 INFO [stderr]    |
Dec 02 08:54:27.940 INFO [stderr] 18 |     let mut grid_bis = [[0i8; 4];4];
Dec 02 08:54:27.940 INFO [stderr]    |             ^^^^^^^^
Dec 02 08:54:27.940 INFO [stderr]    |
Dec 02 08:54:27.940 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Dec 02 08:54:27.940 INFO [stderr] 
Dec 02 08:54:27.949 INFO [stderr] warning: variable does not need to be mutable
Dec 02 08:54:27.949 INFO [stderr]   --> src/main.rs:97:28
Dec 02 08:54:27.950 INFO [stderr]    |
Dec 02 08:54:27.950 INFO [stderr] 97 | fn move_grid(d: Direction, mut grid: &mut [[i8; 4]; 4])
Dec 02 08:54:27.950 INFO [stderr]    |                            ----^^^^
Dec 02 08:54:27.950 INFO [stderr]    |                            |
Dec 02 08:54:27.951 INFO [stderr]    |                            help: remove this `mut`
Dec 02 08:54:27.951 INFO [stderr]    |
Dec 02 08:54:27.951 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 02 08:54:27.951 INFO [stderr] 
Dec 02 08:54:27.951 INFO [stderr] warning: variable does not need to be mutable
Dec 02 08:54:27.952 INFO [stderr]    --> src/main.rs:137:13
Dec 02 08:54:27.952 INFO [stderr]     |
Dec 02 08:54:27.952 INFO [stderr] 137 | fn add_tile(mut grid: &mut [[i8; 4]; 4])
Dec 02 08:54:27.952 INFO [stderr]     |             ----^^^^
Dec 02 08:54:27.952 INFO [stderr]     |             |
Dec 02 08:54:27.953 INFO [stderr]     |             help: remove this `mut`
Dec 02 08:54:27.953 INFO [stderr] 
Dec 02 08:54:27.961 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 02 08:54:27.961 INFO [stderr]   --> src/main.rs:52:13
Dec 02 08:54:27.961 INFO [stderr]    |
Dec 02 08:54:27.962 INFO [stderr] 52 |             Command::new("clear").status();
Dec 02 08:54:27.962 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 08:54:27.962 INFO [stderr]    |
Dec 02 08:54:27.962 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 02 08:54:27.963 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 02 08:54:27.963 INFO [stderr] 
Dec 02 08:54:27.963 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 02 08:54:27.963 INFO [stderr]   --> src/main.rs:75:5
Dec 02 08:54:27.963 INFO [stderr]    |
Dec 02 08:54:27.964 INFO [stderr] 75 |     Command::new("clear").status();
Dec 02 08:54:27.964 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 08:54:27.964 INFO [stderr]    |
Dec 02 08:54:27.964 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 02 08:54:27.964 INFO [stderr] 
Dec 02 08:54:28.495 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.53s
Dec 02 08:54:28.498 INFO [stderr] su: No module specific data is present
Dec 02 08:54:29.760 INFO running `"docker" "inspect" "2815f642a05cfbd07a9746df3da0a71ff244926758b3fe0a44c5b87fa878ee83"`
Dec 02 08:54:30.081 INFO running `"docker" "rm" "-f" "2815f642a05cfbd07a9746df3da0a71ff244926758b3fe0a44c5b87fa878ee83"`
Dec 02 08:54:30.515 INFO [stdout] 2815f642a05cfbd07a9746df3da0a71ff244926758b3fe0a44c5b87fa878ee83
Dec 02 08:54:30.519 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-3/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/beta-1.31-5/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/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 +8940af3cea4a9a9deabcaf843b2f8cad9a83fc61-alt 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 08:54:31.104 INFO [stdout] 9e281dee1a853ab0fc9f33e98f8a587bfd67711edf0fa99d85513d83faf73e25
Dec 02 08:54:31.106 INFO running `"docker" "start" "-a" "9e281dee1a853ab0fc9f33e98f8a587bfd67711edf0fa99d85513d83faf73e25"`
Dec 02 08:54:32.773 INFO [stderr] usermod: no changes
Dec 02 08:54:32.829 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
Dec 02 08:54:32.840 INFO [stderr]      Running /target/debug/deps/rust_2048-181c04e31bd39fa2
Dec 02 08:54:32.852 INFO [stdout] 
Dec 02 08:54:32.852 INFO [stdout] running 0 tests
Dec 02 08:54:32.852 INFO [stdout] 
Dec 02 08:54:32.852 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 02 08:54:32.852 INFO [stdout] 
Dec 02 08:54:32.859 INFO [stderr] su: No module specific data is present
Dec 02 08:54:33.803 INFO running `"docker" "inspect" "9e281dee1a853ab0fc9f33e98f8a587bfd67711edf0fa99d85513d83faf73e25"`
Dec 02 08:54:34.149 INFO running `"docker" "rm" "-f" "9e281dee1a853ab0fc9f33e98f8a587bfd67711edf0fa99d85513d83faf73e25"`
Dec 02 08:54:34.383 INFO [stdout] 9e281dee1a853ab0fc9f33e98f8a587bfd67711edf0fa99d85513d83faf73e25
