Nov 17 16:24:11.563 INFO testing Cackbone/2048.rs against master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c for pr-55982
Nov 17 16:24:11.565 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-4/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-55982/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/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 +6b9b97bd9b704f85f0184f7a213cc4d62bd9654c-alt build --frozen" "-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"`
Nov 17 16:24:12.018 INFO [stdout] 5843aa34d01e3f76d319d77f467a2d729fca3201e0c2465a25136a708a0756cb
Nov 17 16:24:12.027 INFO running `"docker" "start" "-a" "5843aa34d01e3f76d319d77f467a2d729fca3201e0c2465a25136a708a0756cb"`
Nov 17 16:24:13.127 INFO [stderr] usermod: no changes
Nov 17 16:24:13.197 INFO [stderr]    Compiling rust_2048 v0.1.0 (/source)
Nov 17 16:24:13.763 INFO [stderr] warning: value assigned to `grid_bis` is never read
Nov 17 16:24:13.763 INFO [stderr]   --> src/main.rs:18:13
Nov 17 16:24:13.763 INFO [stderr]    |
Nov 17 16:24:13.763 INFO [stderr] 18 |     let mut grid_bis = [[0i8; 4];4];
Nov 17 16:24:13.763 INFO [stderr]    |             ^^^^^^^^
Nov 17 16:24:13.763 INFO [stderr]    |
Nov 17 16:24:13.767 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Nov 17 16:24:13.767 INFO [stderr] 
Nov 17 16:24:13.773 INFO [stderr] warning: variable does not need to be mutable
Nov 17 16:24:13.773 INFO [stderr]   --> src/main.rs:97:28
Nov 17 16:24:13.773 INFO [stderr]    |
Nov 17 16:24:13.773 INFO [stderr] 97 | fn move_grid(d: Direction, mut grid: &mut [[i8; 4]; 4])
Nov 17 16:24:13.773 INFO [stderr]    |                            ----^^^^
Nov 17 16:24:13.773 INFO [stderr]    |                            |
Nov 17 16:24:13.773 INFO [stderr]    |                            help: remove this `mut`
Nov 17 16:24:13.773 INFO [stderr]    |
Nov 17 16:24:13.773 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 17 16:24:13.773 INFO [stderr] 
Nov 17 16:24:13.775 INFO [stderr] warning: variable does not need to be mutable
Nov 17 16:24:13.775 INFO [stderr]    --> src/main.rs:137:13
Nov 17 16:24:13.775 INFO [stderr]     |
Nov 17 16:24:13.775 INFO [stderr] 137 | fn add_tile(mut grid: &mut [[i8; 4]; 4])
Nov 17 16:24:13.775 INFO [stderr]     |             ----^^^^
Nov 17 16:24:13.775 INFO [stderr]     |             |
Nov 17 16:24:13.775 INFO [stderr]     |             help: remove this `mut`
Nov 17 16:24:13.779 INFO [stderr] 
Nov 17 16:24:13.786 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 17 16:24:13.786 INFO [stderr]   --> src/main.rs:52:13
Nov 17 16:24:13.786 INFO [stderr]    |
Nov 17 16:24:13.786 INFO [stderr] 52 |             Command::new("clear").status();
Nov 17 16:24:13.786 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 16:24:13.786 INFO [stderr]    |
Nov 17 16:24:13.786 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 17 16:24:13.786 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 17 16:24:13.786 INFO [stderr] 
Nov 17 16:24:13.786 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 17 16:24:13.786 INFO [stderr]   --> src/main.rs:75:5
Nov 17 16:24:13.786 INFO [stderr]    |
Nov 17 16:24:13.786 INFO [stderr] 75 |     Command::new("clear").status();
Nov 17 16:24:13.786 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 16:24:13.786 INFO [stderr]    |
Nov 17 16:24:13.786 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 17 16:24:13.787 INFO [stderr] 
Nov 17 16:24:14.546 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.39s
Nov 17 16:24:14.549 INFO [stderr] su: No module specific data is present
Nov 17 16:24:15.027 INFO running `"docker" "inspect" "5843aa34d01e3f76d319d77f467a2d729fca3201e0c2465a25136a708a0756cb"`
Nov 17 16:24:15.388 INFO running `"docker" "rm" "-f" "5843aa34d01e3f76d319d77f467a2d729fca3201e0c2465a25136a708a0756cb"`
Nov 17 16:24:15.653 INFO [stdout] 5843aa34d01e3f76d319d77f467a2d729fca3201e0c2465a25136a708a0756cb
Nov 17 16:24:15.655 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-4/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-55982/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/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 +6b9b97bd9b704f85f0184f7a213cc4d62bd9654c-alt test --frozen --no-run" "-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"`
Nov 17 16:24:16.062 INFO [stdout] eb48d4b231232eeee734851f40dc142bd07cb19d9b913407d08fe231331c7e6a
Nov 17 16:24:16.068 INFO running `"docker" "start" "-a" "eb48d4b231232eeee734851f40dc142bd07cb19d9b913407d08fe231331c7e6a"`
Nov 17 16:24:17.075 INFO [stderr] usermod: no changes
Nov 17 16:24:17.123 INFO [stderr]    Compiling rust_2048 v0.1.0 (/source)
Nov 17 16:24:17.771 INFO [stderr] warning: value assigned to `grid_bis` is never read
Nov 17 16:24:17.771 INFO [stderr]   --> src/main.rs:18:13
Nov 17 16:24:17.771 INFO [stderr]    |
Nov 17 16:24:17.771 INFO [stderr] 18 |     let mut grid_bis = [[0i8; 4];4];
Nov 17 16:24:17.771 INFO [stderr]    |             ^^^^^^^^
Nov 17 16:24:17.771 INFO [stderr]    |
Nov 17 16:24:17.771 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Nov 17 16:24:17.771 INFO [stderr] 
Nov 17 16:24:17.771 INFO [stderr] warning: variable does not need to be mutable
Nov 17 16:24:17.771 INFO [stderr]   --> src/main.rs:97:28
Nov 17 16:24:17.771 INFO [stderr]    |
Nov 17 16:24:17.771 INFO [stderr] 97 | fn move_grid(d: Direction, mut grid: &mut [[i8; 4]; 4])
Nov 17 16:24:17.771 INFO [stderr]    |                            ----^^^^
Nov 17 16:24:17.771 INFO [stderr]    |                            |
Nov 17 16:24:17.771 INFO [stderr]    |                            help: remove this `mut`
Nov 17 16:24:17.771 INFO [stderr]    |
Nov 17 16:24:17.771 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 17 16:24:17.771 INFO [stderr] 
Nov 17 16:24:17.771 INFO [stderr] warning: variable does not need to be mutable
Nov 17 16:24:17.771 INFO [stderr]    --> src/main.rs:137:13
Nov 17 16:24:17.771 INFO [stderr]     |
Nov 17 16:24:17.771 INFO [stderr] 137 | fn add_tile(mut grid: &mut [[i8; 4]; 4])
Nov 17 16:24:17.771 INFO [stderr]     |             ----^^^^
Nov 17 16:24:17.771 INFO [stderr]     |             |
Nov 17 16:24:17.771 INFO [stderr]     |             help: remove this `mut`
Nov 17 16:24:17.771 INFO [stderr] 
Nov 17 16:24:17.783 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 17 16:24:17.783 INFO [stderr]   --> src/main.rs:52:13
Nov 17 16:24:17.783 INFO [stderr]    |
Nov 17 16:24:17.783 INFO [stderr] 52 |             Command::new("clear").status();
Nov 17 16:24:17.783 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 16:24:17.783 INFO [stderr]    |
Nov 17 16:24:17.783 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 17 16:24:17.783 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 17 16:24:17.783 INFO [stderr] 
Nov 17 16:24:17.783 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 17 16:24:17.783 INFO [stderr]   --> src/main.rs:75:5
Nov 17 16:24:17.783 INFO [stderr]    |
Nov 17 16:24:17.783 INFO [stderr] 75 |     Command::new("clear").status();
Nov 17 16:24:17.783 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 16:24:17.783 INFO [stderr]    |
Nov 17 16:24:17.783 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 17 16:24:17.783 INFO [stderr] 
Nov 17 16:24:18.191 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.08s
Nov 17 16:24:18.192 INFO [stderr] su: No module specific data is present
Nov 17 16:24:18.853 INFO running `"docker" "inspect" "eb48d4b231232eeee734851f40dc142bd07cb19d9b913407d08fe231331c7e6a"`
Nov 17 16:24:19.201 INFO running `"docker" "rm" "-f" "eb48d4b231232eeee734851f40dc142bd07cb19d9b913407d08fe231331c7e6a"`
Nov 17 16:24:19.469 INFO [stdout] eb48d4b231232eeee734851f40dc142bd07cb19d9b913407d08fe231331c7e6a
Nov 17 16:24:19.479 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-4/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-55982/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/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 +6b9b97bd9b704f85f0184f7a213cc4d62bd9654c-alt test --frozen" "-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"`
Nov 17 16:24:19.896 INFO [stdout] 1dd23fc2b8ba05cce0ff74fb8e6b0cc061daf80d2f7efaf5fd585b35bdc46d66
Nov 17 16:24:19.903 INFO running `"docker" "start" "-a" "1dd23fc2b8ba05cce0ff74fb8e6b0cc061daf80d2f7efaf5fd585b35bdc46d66"`
Nov 17 16:24:20.999 INFO [stderr] usermod: no changes
Nov 17 16:24:21.100 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.06s
Nov 17 16:24:21.107 INFO [stderr]      Running /target/debug/deps/rust_2048-3c603b540d84dff0
Nov 17 16:24:21.107 INFO [stdout] 
Nov 17 16:24:21.108 INFO [stdout] running 0 tests
Nov 17 16:24:21.108 INFO [stdout] 
Nov 17 16:24:21.108 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Nov 17 16:24:21.108 INFO [stdout] 
Nov 17 16:24:21.127 INFO [stderr] su: No module specific data is present
Nov 17 16:24:22.487 INFO running `"docker" "inspect" "1dd23fc2b8ba05cce0ff74fb8e6b0cc061daf80d2f7efaf5fd585b35bdc46d66"`
Nov 17 16:24:22.789 INFO running `"docker" "rm" "-f" "1dd23fc2b8ba05cce0ff74fb8e6b0cc061daf80d2f7efaf5fd585b35bdc46d66"`
Nov 17 16:24:23.317 INFO [stdout] 1dd23fc2b8ba05cce0ff74fb8e6b0cc061daf80d2f7efaf5fd585b35bdc46d66