Nov 16 13:40:17.426 INFO testing shinkwhek/rs2048 against try#2e026d6e5d7621634147ad4c8074f1d964dbb1be for pr-55982
Nov 16 13:40:17.427 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-4/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-55982/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/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 +2e026d6e5d7621634147ad4c8074f1d964dbb1be-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 16 13:40:17.867 INFO [stdout] 9a46f1823119fd0c08034a453ae1018ad755e4ea079cc70a0b9974a54b06463d
Nov 16 13:40:17.870 INFO running `"docker" "start" "-a" "9a46f1823119fd0c08034a453ae1018ad755e4ea079cc70a0b9974a54b06463d"`
Nov 16 13:40:19.082 INFO [stderr] usermod: no changes
Nov 16 13:40:19.247 INFO [stderr]    Compiling encode_unicode v0.1.3
Nov 16 13:40:19.247 INFO [stderr]    Compiling nix v0.5.1
Nov 16 13:40:25.007 INFO [stderr]    Compiling rustyline v1.0.0
Nov 16 13:40:27.552 INFO [stderr]    Compiling rs2048 v0.1.0 (/source)
Nov 16 13:40:28.156 INFO [stderr] warning: variant is never constructed: `Nothing`
Nov 16 13:40:28.156 INFO [stderr]   --> src/board.rs:13:5
Nov 16 13:40:28.156 INFO [stderr]    |
Nov 16 13:40:28.156 INFO [stderr] 13 |     Nothing,
Nov 16 13:40:28.156 INFO [stderr]    |     ^^^^^^^
Nov 16 13:40:28.156 INFO [stderr]    |
Nov 16 13:40:28.156 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 16 13:40:28.156 INFO [stderr] 
Nov 16 13:40:28.156 INFO [stderr] warning: variant is never constructed: `Exist`
Nov 16 13:40:28.156 INFO [stderr]   --> src/board.rs:14:5
Nov 16 13:40:28.156 INFO [stderr]    |
Nov 16 13:40:28.156 INFO [stderr] 14 |     Exist,
Nov 16 13:40:28.156 INFO [stderr]    |     ^^^^^
Nov 16 13:40:28.156 INFO [stderr] 
Nov 16 13:40:28.156 INFO [stderr] warning: method is never used: `new`
Nov 16 13:40:28.157 INFO [stderr]   --> src/board.rs:24:5
Nov 16 13:40:28.157 INFO [stderr]    |
Nov 16 13:40:28.157 INFO [stderr] 24 |     pub fn new(score: usize, status: Status) -> Tile {
Nov 16 13:40:28.157 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 16 13:40:28.157 INFO [stderr] 
Nov 16 13:40:28.157 INFO [stderr] warning: method is never used: `get_score`
Nov 16 13:40:28.157 INFO [stderr]   --> src/board.rs:31:5
Nov 16 13:40:28.157 INFO [stderr]    |
Nov 16 13:40:28.158 INFO [stderr] 31 |     pub fn get_score(&self) -> usize {
Nov 16 13:40:28.158 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 16 13:40:28.158 INFO [stderr] 
Nov 16 13:40:28.158 INFO [stderr] warning: method is never used: `is_exist`
Nov 16 13:40:28.158 INFO [stderr]   --> src/board.rs:35:5
Nov 16 13:40:28.158 INFO [stderr]    |
Nov 16 13:40:28.158 INFO [stderr] 35 |     pub fn is_exist(&self) -> bool {
Nov 16 13:40:28.158 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 16 13:40:28.158 INFO [stderr] 
Nov 16 13:40:28.158 INFO [stderr] warning: method is never used: `is_nothing`
Nov 16 13:40:28.158 INFO [stderr]   --> src/board.rs:39:5
Nov 16 13:40:28.158 INFO [stderr]    |
Nov 16 13:40:28.158 INFO [stderr] 39 |     pub fn is_nothing(&self) -> bool {
Nov 16 13:40:28.158 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 16 13:40:28.158 INFO [stderr] 
Nov 16 13:40:28.158 INFO [stderr] warning: struct is never constructed: `Board`
Nov 16 13:40:28.158 INFO [stderr]   --> src/board.rs:44:1
Nov 16 13:40:28.158 INFO [stderr]    |
Nov 16 13:40:28.158 INFO [stderr] 44 | pub struct Board {
Nov 16 13:40:28.158 INFO [stderr]    | ^^^^^^^^^^^^^^^^
Nov 16 13:40:28.158 INFO [stderr] 
Nov 16 13:40:28.158 INFO [stderr] warning: method is never used: `new`
Nov 16 13:40:28.158 INFO [stderr]   --> src/board.rs:50:5
Nov 16 13:40:28.158 INFO [stderr]    |
Nov 16 13:40:28.158 INFO [stderr] 50 |     pub fn new() -> Board {
Nov 16 13:40:28.158 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Nov 16 13:40:28.158 INFO [stderr] 
Nov 16 13:40:28.158 INFO [stderr] warning: method is never used: `gen`
Nov 16 13:40:28.158 INFO [stderr]   --> src/board.rs:61:5
Nov 16 13:40:28.158 INFO [stderr]    |
Nov 16 13:40:28.158 INFO [stderr] 61 |     pub fn gen(&mut self) {
Nov 16 13:40:28.158 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Nov 16 13:40:28.158 INFO [stderr] 
Nov 16 13:40:28.158 INFO [stderr] warning: method is never used: `color`
Nov 16 13:40:28.159 INFO [stderr]   --> src/board.rs:72:5
Nov 16 13:40:28.159 INFO [stderr]    |
Nov 16 13:40:28.159 INFO [stderr] 72 |     fn color(n: usize) -> Colour {
Nov 16 13:40:28.159 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 16 13:40:28.159 INFO [stderr] 
Nov 16 13:40:28.159 INFO [stderr] warning: method is never used: `format_line`
Nov 16 13:40:28.159 INFO [stderr]   --> src/board.rs:89:5
Nov 16 13:40:28.159 INFO [stderr]    |
Nov 16 13:40:28.159 INFO [stderr] 89 |     fn format_line(&self, n: usize, t: Option<usize>) -> String {
Nov 16 13:40:28.159 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 16 13:40:28.159 INFO [stderr] 
Nov 16 13:40:28.159 INFO [stderr] warning: method is never used: `render`
Nov 16 13:40:28.159 INFO [stderr]    --> src/board.rs:118:5
Nov 16 13:40:28.159 INFO [stderr]     |
Nov 16 13:40:28.159 INFO [stderr] 118 |     pub fn render(&self) {
Nov 16 13:40:28.159 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^
Nov 16 13:40:28.159 INFO [stderr] 
Nov 16 13:40:28.159 INFO [stderr] warning: method is never used: `get_tile`
Nov 16 13:40:28.159 INFO [stderr]    --> src/board.rs:171:5
Nov 16 13:40:28.159 INFO [stderr]     |
Nov 16 13:40:28.159 INFO [stderr] 171 |     pub fn get_tile(&self, n: usize) -> Option<&Tile> {
Nov 16 13:40:28.159 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 16 13:40:28.159 INFO [stderr] 
Nov 16 13:40:28.159 INFO [stderr] warning: method is never used: `get_score`
Nov 16 13:40:28.159 INFO [stderr]    --> src/board.rs:178:5
Nov 16 13:40:28.159 INFO [stderr]     |
Nov 16 13:40:28.159 INFO [stderr] 178 |     fn get_score(&self) -> usize {
Nov 16 13:40:28.159 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 16 13:40:28.159 INFO [stderr] 
Nov 16 13:40:28.159 INFO [stderr] warning: method is never used: `sum_score`
Nov 16 13:40:28.159 INFO [stderr]    --> src/board.rs:182:5
Nov 16 13:40:28.159 INFO [stderr]     |
Nov 16 13:40:28.159 INFO [stderr] 182 |     fn sum_score(&mut self) {
Nov 16 13:40:28.159 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^
Nov 16 13:40:28.159 INFO [stderr] 
Nov 16 13:40:28.159 INFO [stderr] warning: method is never used: `render_parameter_box`
Nov 16 13:40:28.159 INFO [stderr]    --> src/board.rs:191:5
Nov 16 13:40:28.159 INFO [stderr]     |
Nov 16 13:40:28.159 INFO [stderr] 191 |     pub fn render_parameter_box(&mut self) {
Nov 16 13:40:28.159 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 16 13:40:28.159 INFO [stderr] 
Nov 16 13:40:28.159 INFO [stderr] warning: method is never used: `fin`
Nov 16 13:40:28.159 INFO [stderr]    --> src/board.rs:216:5
Nov 16 13:40:28.159 INFO [stderr]     |
Nov 16 13:40:28.159 INFO [stderr] 216 |     pub fn fin(&mut self) -> bool {
Nov 16 13:40:28.159 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 16 13:40:28.159 INFO [stderr] 
Nov 16 13:40:28.159 INFO [stderr] warning: struct is never constructed: `Update`
Nov 16 13:40:28.159 INFO [stderr]  --> src/app.rs:7:1
Nov 16 13:40:28.159 INFO [stderr]   |
Nov 16 13:40:28.159 INFO [stderr] 7 | pub struct Update();
Nov 16 13:40:28.159 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^
Nov 16 13:40:28.159 INFO [stderr] 
Nov 16 13:40:28.159 INFO [stderr] warning: method is never used: `update`
Nov 16 13:40:28.159 INFO [stderr]   --> src/app.rs:10:5
Nov 16 13:40:28.159 INFO [stderr]    |
Nov 16 13:40:28.159 INFO [stderr] 10 |     pub fn update(board: &mut board::Board) {
Nov 16 13:40:28.159 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 16 13:40:28.159 INFO [stderr] 
Nov 16 13:40:28.159 INFO [stderr] warning: method is never used: `up`
Nov 16 13:40:28.159 INFO [stderr]   --> src/app.rs:58:5
Nov 16 13:40:28.159 INFO [stderr]    |
Nov 16 13:40:28.159 INFO [stderr] 58 |     pub fn up(board: &mut board::Board) -> bool {
Nov 16 13:40:28.159 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 16 13:40:28.159 INFO [stderr] 
Nov 16 13:40:28.159 INFO [stderr] warning: method is never used: `down`
Nov 16 13:40:28.159 INFO [stderr]   --> src/app.rs:89:5
Nov 16 13:40:28.159 INFO [stderr]    |
Nov 16 13:40:28.159 INFO [stderr] 89 |     pub fn down(board: &mut board::Board) -> bool {
Nov 16 13:40:28.159 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 16 13:40:28.159 INFO [stderr] 
Nov 16 13:40:28.159 INFO [stderr] warning: method is never used: `left`
Nov 16 13:40:28.159 INFO [stderr]    --> src/app.rs:120:5
Nov 16 13:40:28.159 INFO [stderr]     |
Nov 16 13:40:28.159 INFO [stderr] 120 |     pub fn left(board: &mut board::Board) -> bool {
Nov 16 13:40:28.159 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 16 13:40:28.159 INFO [stderr] 
Nov 16 13:40:28.159 INFO [stderr] warning: method is never used: `right`
Nov 16 13:40:28.160 INFO [stderr]    --> src/app.rs:151:5
Nov 16 13:40:28.160 INFO [stderr]     |
Nov 16 13:40:28.160 INFO [stderr] 151 |     pub fn right(board: &mut board::Board) -> bool {
Nov 16 13:40:28.160 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 16 13:40:28.160 INFO [stderr] 
Nov 16 13:40:28.160 INFO [stderr] warning: method is never used: `is_finished`
Nov 16 13:40:28.160 INFO [stderr]    --> src/app.rs:182:5
Nov 16 13:40:28.160 INFO [stderr]     |
Nov 16 13:40:28.160 INFO [stderr] 182 |     pub fn is_finished(board: &board::Board) -> bool {
Nov 16 13:40:28.160 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 16 13:40:28.160 INFO [stderr] 
Nov 16 13:40:28.943 INFO [stderr] warning: method is never used: `is_nothing`
Nov 16 13:40:28.943 INFO [stderr]   --> src/board.rs:39:5
Nov 16 13:40:28.943 INFO [stderr]    |
Nov 16 13:40:28.943 INFO [stderr] 39 |     pub fn is_nothing(&self) -> bool {
Nov 16 13:40:28.944 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 16 13:40:28.944 INFO [stderr]    |
Nov 16 13:40:28.944 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 16 13:40:28.944 INFO [stderr] 
Nov 16 13:40:30.503 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.38s
Nov 16 13:40:30.511 INFO [stderr] su: No module specific data is present
Nov 16 13:40:32.005 INFO running `"docker" "inspect" "9a46f1823119fd0c08034a453ae1018ad755e4ea079cc70a0b9974a54b06463d"`
Nov 16 13:40:32.375 INFO running `"docker" "rm" "-f" "9a46f1823119fd0c08034a453ae1018ad755e4ea079cc70a0b9974a54b06463d"`
Nov 16 13:40:32.743 INFO [stdout] 9a46f1823119fd0c08034a453ae1018ad755e4ea079cc70a0b9974a54b06463d
Nov 16 13:40:32.746 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-4/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-55982/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/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 +2e026d6e5d7621634147ad4c8074f1d964dbb1be-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 16 13:40:33.220 INFO [stdout] 2c615cd302e63240e1c7b92ab83a557ffa66a5c8f71e2c5233500c6029541958
Nov 16 13:40:33.223 INFO running `"docker" "start" "-a" "2c615cd302e63240e1c7b92ab83a557ffa66a5c8f71e2c5233500c6029541958"`
Nov 16 13:40:35.136 INFO [stderr] usermod: no changes
Nov 16 13:40:35.247 INFO [stderr]    Compiling rs2048 v0.1.0 (/source)
Nov 16 13:40:36.186 INFO [stderr] warning: method is never used: `is_nothing`
Nov 16 13:40:36.203 INFO [stderr]   --> src/board.rs:39:5
Nov 16 13:40:36.204 INFO [stderr]    |
Nov 16 13:40:36.205 INFO [stderr] 39 |     pub fn is_nothing(&self) -> bool {
Nov 16 13:40:36.205 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 16 13:40:36.205 INFO [stderr]    |
Nov 16 13:40:36.206 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 16 13:40:36.206 INFO [stderr] 
Nov 16 13:40:36.354 INFO [stderr] warning: variant is never constructed: `Nothing`
Nov 16 13:40:36.354 INFO [stderr]   --> src/board.rs:13:5
Nov 16 13:40:36.354 INFO [stderr]    |
Nov 16 13:40:36.354 INFO [stderr] 13 |     Nothing,
Nov 16 13:40:36.354 INFO [stderr]    |     ^^^^^^^
Nov 16 13:40:36.354 INFO [stderr]    |
Nov 16 13:40:36.354 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 16 13:40:36.354 INFO [stderr] 
Nov 16 13:40:36.354 INFO [stderr] warning: variant is never constructed: `Exist`
Nov 16 13:40:36.354 INFO [stderr]   --> src/board.rs:14:5
Nov 16 13:40:36.354 INFO [stderr]    |
Nov 16 13:40:36.354 INFO [stderr] 14 |     Exist,
Nov 16 13:40:36.354 INFO [stderr]    |     ^^^^^
Nov 16 13:40:36.354 INFO [stderr] 
Nov 16 13:40:36.363 INFO [stderr] warning: method is never used: `new`
Nov 16 13:40:36.363 INFO [stderr]   --> src/board.rs:24:5
Nov 16 13:40:36.363 INFO [stderr]    |
Nov 16 13:40:36.363 INFO [stderr] 24 |     pub fn new(score: usize, status: Status) -> Tile {
Nov 16 13:40:36.363 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 16 13:40:36.363 INFO [stderr] 
Nov 16 13:40:36.363 INFO [stderr] warning: method is never used: `get_score`
Nov 16 13:40:36.363 INFO [stderr]   --> src/board.rs:31:5
Nov 16 13:40:36.363 INFO [stderr]    |
Nov 16 13:40:36.363 INFO [stderr] 31 |     pub fn get_score(&self) -> usize {
Nov 16 13:40:36.363 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 16 13:40:36.363 INFO [stderr] 
Nov 16 13:40:36.363 INFO [stderr] warning: method is never used: `is_exist`
Nov 16 13:40:36.363 INFO [stderr]   --> src/board.rs:35:5
Nov 16 13:40:36.363 INFO [stderr]    |
Nov 16 13:40:36.363 INFO [stderr] 35 |     pub fn is_exist(&self) -> bool {
Nov 16 13:40:36.363 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 16 13:40:36.363 INFO [stderr] 
Nov 16 13:40:36.363 INFO [stderr] warning: method is never used: `is_nothing`
Nov 16 13:40:36.363 INFO [stderr]   --> src/board.rs:39:5
Nov 16 13:40:36.363 INFO [stderr]    |
Nov 16 13:40:36.363 INFO [stderr] 39 |     pub fn is_nothing(&self) -> bool {
Nov 16 13:40:36.363 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 16 13:40:36.363 INFO [stderr] 
Nov 16 13:40:36.363 INFO [stderr] warning: struct is never constructed: `Board`
Nov 16 13:40:36.363 INFO [stderr]   --> src/board.rs:44:1
Nov 16 13:40:36.363 INFO [stderr]    |
Nov 16 13:40:36.363 INFO [stderr] 44 | pub struct Board {
Nov 16 13:40:36.363 INFO [stderr]    | ^^^^^^^^^^^^^^^^
Nov 16 13:40:36.363 INFO [stderr] 
Nov 16 13:40:36.363 INFO [stderr] warning: method is never used: `new`
Nov 16 13:40:36.363 INFO [stderr]   --> src/board.rs:50:5
Nov 16 13:40:36.363 INFO [stderr]    |
Nov 16 13:40:36.363 INFO [stderr] 50 |     pub fn new() -> Board {
Nov 16 13:40:36.363 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Nov 16 13:40:36.363 INFO [stderr] 
Nov 16 13:40:36.363 INFO [stderr] warning: method is never used: `gen`
Nov 16 13:40:36.363 INFO [stderr]   --> src/board.rs:61:5
Nov 16 13:40:36.363 INFO [stderr]    |
Nov 16 13:40:36.363 INFO [stderr] 61 |     pub fn gen(&mut self) {
Nov 16 13:40:36.363 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Nov 16 13:40:36.363 INFO [stderr] 
Nov 16 13:40:36.363 INFO [stderr] warning: method is never used: `color`
Nov 16 13:40:36.363 INFO [stderr]   --> src/board.rs:72:5
Nov 16 13:40:36.363 INFO [stderr]    |
Nov 16 13:40:36.363 INFO [stderr] 72 |     fn color(n: usize) -> Colour {
Nov 16 13:40:36.363 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 16 13:40:36.363 INFO [stderr] 
Nov 16 13:40:36.363 INFO [stderr] warning: method is never used: `format_line`
Nov 16 13:40:36.363 INFO [stderr]   --> src/board.rs:89:5
Nov 16 13:40:36.363 INFO [stderr]    |
Nov 16 13:40:36.363 INFO [stderr] 89 |     fn format_line(&self, n: usize, t: Option<usize>) -> String {
Nov 16 13:40:36.363 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 16 13:40:36.363 INFO [stderr] 
Nov 16 13:40:36.363 INFO [stderr] warning: method is never used: `render`
Nov 16 13:40:36.363 INFO [stderr]    --> src/board.rs:118:5
Nov 16 13:40:36.363 INFO [stderr]     |
Nov 16 13:40:36.364 INFO [stderr] 118 |     pub fn render(&self) {
Nov 16 13:40:36.364 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^
Nov 16 13:40:36.364 INFO [stderr] 
Nov 16 13:40:36.364 INFO [stderr] warning: method is never used: `get_tile`
Nov 16 13:40:36.364 INFO [stderr]    --> src/board.rs:171:5
Nov 16 13:40:36.364 INFO [stderr]     |
Nov 16 13:40:36.364 INFO [stderr] 171 |     pub fn get_tile(&self, n: usize) -> Option<&Tile> {
Nov 16 13:40:36.364 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 16 13:40:36.364 INFO [stderr] 
Nov 16 13:40:36.364 INFO [stderr] warning: method is never used: `get_score`
Nov 16 13:40:36.364 INFO [stderr]    --> src/board.rs:178:5
Nov 16 13:40:36.364 INFO [stderr]     |
Nov 16 13:40:36.364 INFO [stderr] 178 |     fn get_score(&self) -> usize {
Nov 16 13:40:36.364 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 16 13:40:36.364 INFO [stderr] 
Nov 16 13:40:36.364 INFO [stderr] warning: method is never used: `sum_score`
Nov 16 13:40:36.364 INFO [stderr]    --> src/board.rs:182:5
Nov 16 13:40:36.364 INFO [stderr]     |
Nov 16 13:40:36.364 INFO [stderr] 182 |     fn sum_score(&mut self) {
Nov 16 13:40:36.364 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^
Nov 16 13:40:36.364 INFO [stderr] 
Nov 16 13:40:36.364 INFO [stderr] warning: method is never used: `render_parameter_box`
Nov 16 13:40:36.364 INFO [stderr]    --> src/board.rs:191:5
Nov 16 13:40:36.364 INFO [stderr]     |
Nov 16 13:40:36.364 INFO [stderr] 191 |     pub fn render_parameter_box(&mut self) {
Nov 16 13:40:36.364 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 16 13:40:36.364 INFO [stderr] 
Nov 16 13:40:36.364 INFO [stderr] warning: method is never used: `fin`
Nov 16 13:40:36.364 INFO [stderr]    --> src/board.rs:216:5
Nov 16 13:40:36.364 INFO [stderr]     |
Nov 16 13:40:36.364 INFO [stderr] 216 |     pub fn fin(&mut self) -> bool {
Nov 16 13:40:36.364 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 16 13:40:36.364 INFO [stderr] 
Nov 16 13:40:36.364 INFO [stderr] warning: struct is never constructed: `Update`
Nov 16 13:40:36.364 INFO [stderr]  --> src/app.rs:7:1
Nov 16 13:40:36.364 INFO [stderr]   |
Nov 16 13:40:36.364 INFO [stderr] 7 | pub struct Update();
Nov 16 13:40:36.364 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^
Nov 16 13:40:36.364 INFO [stderr] 
Nov 16 13:40:36.364 INFO [stderr] warning: method is never used: `update`
Nov 16 13:40:36.364 INFO [stderr]   --> src/app.rs:10:5
Nov 16 13:40:36.364 INFO [stderr]    |
Nov 16 13:40:36.364 INFO [stderr] 10 |     pub fn update(board: &mut board::Board) {
Nov 16 13:40:36.364 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 16 13:40:36.364 INFO [stderr] 
Nov 16 13:40:36.364 INFO [stderr] warning: method is never used: `up`
Nov 16 13:40:36.364 INFO [stderr]   --> src/app.rs:58:5
Nov 16 13:40:36.364 INFO [stderr]    |
Nov 16 13:40:36.364 INFO [stderr] 58 |     pub fn up(board: &mut board::Board) -> bool {
Nov 16 13:40:36.364 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 16 13:40:36.364 INFO [stderr] 
Nov 16 13:40:36.364 INFO [stderr] warning: method is never used: `down`
Nov 16 13:40:36.364 INFO [stderr]   --> src/app.rs:89:5
Nov 16 13:40:36.364 INFO [stderr]    |
Nov 16 13:40:36.364 INFO [stderr] 89 |     pub fn down(board: &mut board::Board) -> bool {
Nov 16 13:40:36.364 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 16 13:40:36.364 INFO [stderr] 
Nov 16 13:40:36.364 INFO [stderr] warning: method is never used: `left`
Nov 16 13:40:36.364 INFO [stderr]    --> src/app.rs:120:5
Nov 16 13:40:36.364 INFO [stderr]     |
Nov 16 13:40:36.364 INFO [stderr] 120 |     pub fn left(board: &mut board::Board) -> bool {
Nov 16 13:40:36.364 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 16 13:40:36.364 INFO [stderr] 
Nov 16 13:40:36.364 INFO [stderr] warning: method is never used: `right`
Nov 16 13:40:36.364 INFO [stderr]    --> src/app.rs:151:5
Nov 16 13:40:36.364 INFO [stderr]     |
Nov 16 13:40:36.364 INFO [stderr] 151 |     pub fn right(board: &mut board::Board) -> bool {
Nov 16 13:40:36.364 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 16 13:40:36.364 INFO [stderr] 
Nov 16 13:40:36.365 INFO [stderr] warning: method is never used: `is_finished`
Nov 16 13:40:36.365 INFO [stderr]    --> src/app.rs:182:5
Nov 16 13:40:36.365 INFO [stderr]     |
Nov 16 13:40:36.365 INFO [stderr] 182 |     pub fn is_finished(board: &board::Board) -> bool {
Nov 16 13:40:36.365 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 16 13:40:36.365 INFO [stderr] 
Nov 16 13:40:36.840 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.68s
Nov 16 13:40:36.846 INFO [stderr] su: No module specific data is present
Nov 16 13:40:37.979 INFO running `"docker" "inspect" "2c615cd302e63240e1c7b92ab83a557ffa66a5c8f71e2c5233500c6029541958"`
Nov 16 13:40:38.283 INFO running `"docker" "rm" "-f" "2c615cd302e63240e1c7b92ab83a557ffa66a5c8f71e2c5233500c6029541958"`
Nov 16 13:40:38.538 INFO [stdout] 2c615cd302e63240e1c7b92ab83a557ffa66a5c8f71e2c5233500c6029541958
Nov 16 13:40:38.547 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-4/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-55982/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/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 +2e026d6e5d7621634147ad4c8074f1d964dbb1be-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 16 13:40:38.905 INFO [stdout] 65b16551ae55f61b06fbc6d2a0bf28ea5574564fd80d4cf1a94621105e1d0370
Nov 16 13:40:38.907 INFO running `"docker" "start" "-a" "65b16551ae55f61b06fbc6d2a0bf28ea5574564fd80d4cf1a94621105e1d0370"`
Nov 16 13:40:40.674 INFO [stderr] usermod: no changes
Nov 16 13:40:40.763 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.06s
Nov 16 13:40:40.775 INFO [stderr]      Running /target/debug/deps/rs2048-79aa4fa4ba48e797
Nov 16 13:40:40.775 INFO [stderr]      Running /target/debug/deps/rs2048-f97328dc2f8bf3fc
Nov 16 13:40:40.775 INFO [stdout] 
Nov 16 13:40:40.775 INFO [stdout] running 0 tests
Nov 16 13:40:40.775 INFO [stdout] 
Nov 16 13:40:40.775 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Nov 16 13:40:40.775 INFO [stdout] 
Nov 16 13:40:40.775 INFO [stdout] 
Nov 16 13:40:40.775 INFO [stdout] running 0 tests
Nov 16 13:40:40.775 INFO [stdout] 
Nov 16 13:40:40.775 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Nov 16 13:40:40.775 INFO [stdout] 
Nov 16 13:40:40.779 INFO [stderr]    Doc-tests rs2048
Nov 16 13:40:41.151 INFO [stdout] 
Nov 16 13:40:41.151 INFO [stdout] running 0 tests
Nov 16 13:40:41.151 INFO [stdout] 
Nov 16 13:40:41.151 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Nov 16 13:40:41.151 INFO [stdout] 
Nov 16 13:40:41.155 INFO [stderr] su: No module specific data is present
Nov 16 13:40:42.179 INFO running `"docker" "inspect" "65b16551ae55f61b06fbc6d2a0bf28ea5574564fd80d4cf1a94621105e1d0370"`
Nov 16 13:40:42.485 INFO running `"docker" "rm" "-f" "65b16551ae55f61b06fbc6d2a0bf28ea5574564fd80d4cf1a94621105e1d0370"`
Nov 16 13:40:42.851 INFO [stdout] 65b16551ae55f61b06fbc6d2a0bf28ea5574564fd80d4cf1a94621105e1d0370