Nov 28 13:38:36.733 INFO checking FeliciousX/rust-2048 against try#db42d4dad33013eba11ef37342ad9f614e5652b8 for pr-56074
Nov 28 13:38:36.733 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-6/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56074/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/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 +db42d4dad33013eba11ef37342ad9f614e5652b8-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"`
Nov 28 13:38:37.163 INFO [stdout] 1fb2ab09bc307429b55a3fbfe80b8c4e85e417825feeaedfd55990d5eb6c89f1
Nov 28 13:38:37.166 INFO running `"docker" "start" "-a" "1fb2ab09bc307429b55a3fbfe80b8c4e85e417825feeaedfd55990d5eb6c89f1"`
Nov 28 13:38:38.300 INFO [stderr] usermod: no changes
Nov 28 13:38:38.364 INFO [stderr]     Checking 2048_game v0.1.0 (/source)
Nov 28 13:38:38.732 INFO [stderr] warning: unused import: `std::io`
Nov 28 13:38:38.732 INFO [stderr]  --> src/main.rs:1:5
Nov 28 13:38:38.732 INFO [stderr]   |
Nov 28 13:38:38.732 INFO [stderr] 1 | use std::io;
Nov 28 13:38:38.732 INFO [stderr]   |     ^^^^^^^
Nov 28 13:38:38.732 INFO [stderr]   |
Nov 28 13:38:38.732 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 28 13:38:38.732 INFO [stderr] 
Nov 28 13:38:38.765 INFO [stderr] warning: unused variable: `choice`
Nov 28 13:38:38.765 INFO [stderr]  --> src/app.rs:6:9
Nov 28 13:38:38.765 INFO [stderr]   |
Nov 28 13:38:38.765 INFO [stderr] 6 |     let choice = console::get_instruction();
Nov 28 13:38:38.765 INFO [stderr]   |         ^^^^^^ help: consider using `_choice` instead
Nov 28 13:38:38.765 INFO [stderr]   |
Nov 28 13:38:38.765 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Nov 28 13:38:38.765 INFO [stderr] 
Nov 28 13:38:38.765 INFO [stderr] warning: unused variable: `i`
Nov 28 13:38:38.765 INFO [stderr]  --> src/console.rs:2:9
Nov 28 13:38:38.765 INFO [stderr]   |
Nov 28 13:38:38.765 INFO [stderr] 2 |     for i in 0..42 {
Nov 28 13:38:38.765 INFO [stderr]   |         ^ help: consider using `_i` instead
Nov 28 13:38:38.765 INFO [stderr] 
Nov 28 13:38:38.767 INFO [stderr] warning: unused variable: `i`
Nov 28 13:38:38.767 INFO [stderr]  --> src/console.rs:6:9
Nov 28 13:38:38.767 INFO [stderr]   |
Nov 28 13:38:38.767 INFO [stderr] 6 |     for i in 0..42 {
Nov 28 13:38:38.767 INFO [stderr]   |         ^ help: consider using `_i` instead
Nov 28 13:38:38.767 INFO [stderr] 
Nov 28 13:38:38.767 INFO [stderr] warning: unused variable: `player1`
Nov 28 13:38:38.767 INFO [stderr]   --> src/main.rs:14:9
Nov 28 13:38:38.767 INFO [stderr]    |
Nov 28 13:38:38.767 INFO [stderr] 14 |     let player1 = player::Player::new(&name);
Nov 28 13:38:38.767 INFO [stderr]    |         ^^^^^^^ help: consider using `_player1` instead
Nov 28 13:38:38.767 INFO [stderr] 
Nov 28 13:38:38.767 INFO [stderr] warning: unused variable: `settings`
Nov 28 13:38:38.767 INFO [stderr]   --> src/main.rs:16:9
Nov 28 13:38:38.767 INFO [stderr]    |
Nov 28 13:38:38.767 INFO [stderr] 16 |     let settings = settings::Settings::new(4, 4);
Nov 28 13:38:38.767 INFO [stderr]    |         ^^^^^^^^ help: consider using `_settings` instead
Nov 28 13:38:38.770 INFO [stderr] 
Nov 28 13:38:38.781 INFO [stderr] warning: field is never used: `name`
Nov 28 13:38:38.781 INFO [stderr]  --> src/player.rs:2:5
Nov 28 13:38:38.781 INFO [stderr]   |
Nov 28 13:38:38.781 INFO [stderr] 2 |     name: String,
Nov 28 13:38:38.781 INFO [stderr]   |     ^^^^^^^^^^^^
Nov 28 13:38:38.781 INFO [stderr]   |
Nov 28 13:38:38.781 INFO [stderr]   = note: #[warn(dead_code)] on by default
Nov 28 13:38:38.781 INFO [stderr] 
Nov 28 13:38:38.781 INFO [stderr] warning: field is never used: `score`
Nov 28 13:38:38.781 INFO [stderr]  --> src/player.rs:3:5
Nov 28 13:38:38.781 INFO [stderr]   |
Nov 28 13:38:38.781 INFO [stderr] 3 |     score: i32,
Nov 28 13:38:38.781 INFO [stderr]   |     ^^^^^^^^^^
Nov 28 13:38:38.781 INFO [stderr] 
Nov 28 13:38:38.781 INFO [stderr] warning: field is never used: `steps`
Nov 28 13:38:38.781 INFO [stderr]  --> src/player.rs:4:5
Nov 28 13:38:38.781 INFO [stderr]   |
Nov 28 13:38:38.781 INFO [stderr] 4 |     steps: i32,
Nov 28 13:38:38.781 INFO [stderr]   |     ^^^^^^^^^^
Nov 28 13:38:38.781 INFO [stderr] 
Nov 28 13:38:38.781 INFO [stderr] warning: field is never used: `width`
Nov 28 13:38:38.781 INFO [stderr]  --> src/settings.rs:2:5
Nov 28 13:38:38.781 INFO [stderr]   |
Nov 28 13:38:38.781 INFO [stderr] 2 |     width: i16,
Nov 28 13:38:38.781 INFO [stderr]   |     ^^^^^^^^^^
Nov 28 13:38:38.781 INFO [stderr] 
Nov 28 13:38:38.781 INFO [stderr] warning: field is never used: `height`
Nov 28 13:38:38.781 INFO [stderr]  --> src/settings.rs:3:5
Nov 28 13:38:38.781 INFO [stderr]   |
Nov 28 13:38:38.781 INFO [stderr] 3 |     height: i16,
Nov 28 13:38:38.781 INFO [stderr]   |     ^^^^^^^^^^^
Nov 28 13:38:38.781 INFO [stderr] 
Nov 28 13:38:38.781 INFO [stderr] warning: struct is never constructed: `Board`
Nov 28 13:38:38.781 INFO [stderr]  --> src/board.rs:1:1
Nov 28 13:38:38.781 INFO [stderr]   |
Nov 28 13:38:38.781 INFO [stderr] 1 | struct Board;
Nov 28 13:38:38.781 INFO [stderr]   | ^^^^^^^^^^^^^
Nov 28 13:38:38.781 INFO [stderr] 
Nov 28 13:38:38.781 INFO [stderr] warning: struct is never constructed: `tiles`
Nov 28 13:38:38.781 INFO [stderr]  --> src/tiles.rs:1:1
Nov 28 13:38:38.781 INFO [stderr]   |
Nov 28 13:38:38.781 INFO [stderr] 1 | struct tiles;
Nov 28 13:38:38.781 INFO [stderr]   | ^^^^^^^^^^^^^
Nov 28 13:38:38.781 INFO [stderr] 
Nov 28 13:38:38.782 INFO [stderr] warning: type `tiles` should have a camel case name such as `Tiles`
Nov 28 13:38:38.782 INFO [stderr]  --> src/tiles.rs:1:1
Nov 28 13:38:38.782 INFO [stderr]   |
Nov 28 13:38:38.782 INFO [stderr] 1 | struct tiles;
Nov 28 13:38:38.782 INFO [stderr]   | ^^^^^^^^^^^^^
Nov 28 13:38:38.782 INFO [stderr]   |
Nov 28 13:38:38.782 INFO [stderr]   = note: #[warn(non_camel_case_types)] on by default
Nov 28 13:38:38.782 INFO [stderr] 
Nov 28 13:38:38.787 INFO [stderr] warning: unused import: `std::io`
Nov 28 13:38:38.787 INFO [stderr]  --> src/main.rs:1:5
Nov 28 13:38:38.787 INFO [stderr]   |
Nov 28 13:38:38.787 INFO [stderr] 1 | use std::io;
Nov 28 13:38:38.787 INFO [stderr]   |     ^^^^^^^
Nov 28 13:38:38.787 INFO [stderr]   |
Nov 28 13:38:38.787 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 28 13:38:38.787 INFO [stderr] 
Nov 28 13:38:38.815 INFO [stderr] warning: unused variable: `choice`
Nov 28 13:38:38.815 INFO [stderr]  --> src/app.rs:6:9
Nov 28 13:38:38.815 INFO [stderr]   |
Nov 28 13:38:38.815 INFO [stderr] 6 |     let choice = console::get_instruction();
Nov 28 13:38:38.815 INFO [stderr]   |         ^^^^^^ help: consider using `_choice` instead
Nov 28 13:38:38.815 INFO [stderr]   |
Nov 28 13:38:38.815 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Nov 28 13:38:38.815 INFO [stderr] 
Nov 28 13:38:38.816 INFO [stderr] warning: unused variable: `i`
Nov 28 13:38:38.816 INFO [stderr]  --> src/console.rs:2:9
Nov 28 13:38:38.816 INFO [stderr]   |
Nov 28 13:38:38.816 INFO [stderr] 2 |     for i in 0..42 {
Nov 28 13:38:38.816 INFO [stderr]   |         ^ help: consider using `_i` instead
Nov 28 13:38:38.816 INFO [stderr] 
Nov 28 13:38:38.816 INFO [stderr] warning: unused variable: `i`
Nov 28 13:38:38.816 INFO [stderr]  --> src/console.rs:6:9
Nov 28 13:38:38.816 INFO [stderr]   |
Nov 28 13:38:38.816 INFO [stderr] 6 |     for i in 0..42 {
Nov 28 13:38:38.816 INFO [stderr]   |         ^ help: consider using `_i` instead
Nov 28 13:38:38.816 INFO [stderr] 
Nov 28 13:38:38.816 INFO [stderr] warning: unused variable: `player1`
Nov 28 13:38:38.816 INFO [stderr]   --> src/main.rs:14:9
Nov 28 13:38:38.816 INFO [stderr]    |
Nov 28 13:38:38.816 INFO [stderr] 14 |     let player1 = player::Player::new(&name);
Nov 28 13:38:38.816 INFO [stderr]    |         ^^^^^^^ help: consider using `_player1` instead
Nov 28 13:38:38.816 INFO [stderr] 
Nov 28 13:38:38.816 INFO [stderr] warning: unused variable: `settings`
Nov 28 13:38:38.816 INFO [stderr]   --> src/main.rs:16:9
Nov 28 13:38:38.816 INFO [stderr]    |
Nov 28 13:38:38.816 INFO [stderr] 16 |     let settings = settings::Settings::new(4, 4);
Nov 28 13:38:38.816 INFO [stderr]    |         ^^^^^^^^ help: consider using `_settings` instead
Nov 28 13:38:38.816 INFO [stderr] 
Nov 28 13:38:38.821 INFO [stderr] warning: field is never used: `name`
Nov 28 13:38:38.821 INFO [stderr]  --> src/player.rs:2:5
Nov 28 13:38:38.822 INFO [stderr]   |
Nov 28 13:38:38.822 INFO [stderr] 2 |     name: String,
Nov 28 13:38:38.822 INFO [stderr]   |     ^^^^^^^^^^^^
Nov 28 13:38:38.822 INFO [stderr]   |
Nov 28 13:38:38.822 INFO [stderr]   = note: #[warn(dead_code)] on by default
Nov 28 13:38:38.822 INFO [stderr] 
Nov 28 13:38:38.822 INFO [stderr] warning: field is never used: `score`
Nov 28 13:38:38.822 INFO [stderr]  --> src/player.rs:3:5
Nov 28 13:38:38.822 INFO [stderr]   |
Nov 28 13:38:38.822 INFO [stderr] 3 |     score: i32,
Nov 28 13:38:38.822 INFO [stderr]   |     ^^^^^^^^^^
Nov 28 13:38:38.822 INFO [stderr] 
Nov 28 13:38:38.822 INFO [stderr] warning: field is never used: `steps`
Nov 28 13:38:38.822 INFO [stderr]  --> src/player.rs:4:5
Nov 28 13:38:38.822 INFO [stderr]   |
Nov 28 13:38:38.822 INFO [stderr] 4 |     steps: i32,
Nov 28 13:38:38.822 INFO [stderr]   |     ^^^^^^^^^^
Nov 28 13:38:38.822 INFO [stderr] 
Nov 28 13:38:38.822 INFO [stderr] warning: field is never used: `width`
Nov 28 13:38:38.822 INFO [stderr]  --> src/settings.rs:2:5
Nov 28 13:38:38.822 INFO [stderr]   |
Nov 28 13:38:38.822 INFO [stderr] 2 |     width: i16,
Nov 28 13:38:38.822 INFO [stderr]   |     ^^^^^^^^^^
Nov 28 13:38:38.822 INFO [stderr] 
Nov 28 13:38:38.822 INFO [stderr] warning: field is never used: `height`
Nov 28 13:38:38.822 INFO [stderr]  --> src/settings.rs:3:5
Nov 28 13:38:38.822 INFO [stderr]   |
Nov 28 13:38:38.822 INFO [stderr] 3 |     height: i16,
Nov 28 13:38:38.822 INFO [stderr]   |     ^^^^^^^^^^^
Nov 28 13:38:38.822 INFO [stderr] 
Nov 28 13:38:38.822 INFO [stderr] warning: struct is never constructed: `Board`
Nov 28 13:38:38.822 INFO [stderr]  --> src/board.rs:1:1
Nov 28 13:38:38.822 INFO [stderr]   |
Nov 28 13:38:38.822 INFO [stderr] 1 | struct Board;
Nov 28 13:38:38.822 INFO [stderr]   | ^^^^^^^^^^^^^
Nov 28 13:38:38.822 INFO [stderr] 
Nov 28 13:38:38.822 INFO [stderr] warning: struct is never constructed: `tiles`
Nov 28 13:38:38.822 INFO [stderr]  --> src/tiles.rs:1:1
Nov 28 13:38:38.822 INFO [stderr]   |
Nov 28 13:38:38.822 INFO [stderr] 1 | struct tiles;
Nov 28 13:38:38.822 INFO [stderr]   | ^^^^^^^^^^^^^
Nov 28 13:38:38.822 INFO [stderr] 
Nov 28 13:38:38.822 INFO [stderr] warning: type `tiles` should have a camel case name such as `Tiles`
Nov 28 13:38:38.822 INFO [stderr]  --> src/tiles.rs:1:1
Nov 28 13:38:38.822 INFO [stderr]   |
Nov 28 13:38:38.823 INFO [stderr] 1 | struct tiles;
Nov 28 13:38:38.823 INFO [stderr]   | ^^^^^^^^^^^^^
Nov 28 13:38:38.823 INFO [stderr]   |
Nov 28 13:38:38.823 INFO [stderr]   = note: #[warn(non_camel_case_types)] on by default
Nov 28 13:38:38.823 INFO [stderr] 
Nov 28 13:38:38.832 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.51s
Nov 28 13:38:38.835 INFO [stderr] su: No module specific data is present
Nov 28 13:38:39.104 INFO running `"docker" "inspect" "1fb2ab09bc307429b55a3fbfe80b8c4e85e417825feeaedfd55990d5eb6c89f1"`
Nov 28 13:38:39.179 INFO running `"docker" "rm" "-f" "1fb2ab09bc307429b55a3fbfe80b8c4e85e417825feeaedfd55990d5eb6c89f1"`
Nov 28 13:38:39.258 INFO [stdout] 1fb2ab09bc307429b55a3fbfe80b8c4e85e417825feeaedfd55990d5eb6c89f1