Dec 13 03:31:55.740 INFO testing shinkwhek/rs2048 against master#bd47d6825bf4090517549d33cfef10d3300b4a75 for pr-56550
Dec 13 03:31:55.740 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-4/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-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"`
Dec 13 03:31:56.179 INFO [stdout] 15109bc6df774c3549ad866fddee5fc9d82690559307f8e97ff42dc203918bc1
Dec 13 03:31:56.184 INFO running `"docker" "start" "-a" "15109bc6df774c3549ad866fddee5fc9d82690559307f8e97ff42dc203918bc1"`
Dec 13 03:31:57.537 INFO [stderr] usermod: no changes
Dec 13 03:31:57.690 INFO [stderr]    Compiling nix v0.5.1
Dec 13 03:32:02.477 INFO [stderr]    Compiling rustyline v1.0.0
Dec 13 03:32:05.259 INFO [stderr]    Compiling rs2048 v0.1.0 (/source)
Dec 13 03:32:05.987 INFO [stderr] warning: variant is never constructed: `Nothing`
Dec 13 03:32:05.987 INFO [stderr]   --> src/board.rs:13:5
Dec 13 03:32:05.987 INFO [stderr]    |
Dec 13 03:32:05.987 INFO [stderr] 13 |     Nothing,
Dec 13 03:32:05.987 INFO [stderr]    |     ^^^^^^^
Dec 13 03:32:05.987 INFO [stderr]    |
Dec 13 03:32:05.987 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 13 03:32:05.987 INFO [stderr] 
Dec 13 03:32:05.987 INFO [stderr] warning: variant is never constructed: `Exist`
Dec 13 03:32:05.987 INFO [stderr]   --> src/board.rs:14:5
Dec 13 03:32:05.987 INFO [stderr]    |
Dec 13 03:32:05.987 INFO [stderr] 14 |     Exist,
Dec 13 03:32:05.987 INFO [stderr]    |     ^^^^^
Dec 13 03:32:05.987 INFO [stderr] 
Dec 13 03:32:05.987 INFO [stderr] warning: method is never used: `new`
Dec 13 03:32:05.987 INFO [stderr]   --> src/board.rs:24:5
Dec 13 03:32:05.987 INFO [stderr]    |
Dec 13 03:32:05.987 INFO [stderr] 24 |     pub fn new(score: usize, status: Status) -> Tile {
Dec 13 03:32:05.987 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 03:32:05.987 INFO [stderr] 
Dec 13 03:32:05.987 INFO [stderr] warning: method is never used: `get_score`
Dec 13 03:32:05.987 INFO [stderr]   --> src/board.rs:31:5
Dec 13 03:32:05.987 INFO [stderr]    |
Dec 13 03:32:05.987 INFO [stderr] 31 |     pub fn get_score(&self) -> usize {
Dec 13 03:32:05.987 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 03:32:05.987 INFO [stderr] 
Dec 13 03:32:05.987 INFO [stderr] warning: method is never used: `is_exist`
Dec 13 03:32:05.987 INFO [stderr]   --> src/board.rs:35:5
Dec 13 03:32:05.987 INFO [stderr]    |
Dec 13 03:32:05.987 INFO [stderr] 35 |     pub fn is_exist(&self) -> bool {
Dec 13 03:32:05.987 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 03:32:05.987 INFO [stderr] 
Dec 13 03:32:05.987 INFO [stderr] warning: method is never used: `is_nothing`
Dec 13 03:32:05.987 INFO [stderr]   --> src/board.rs:39:5
Dec 13 03:32:05.987 INFO [stderr]    |
Dec 13 03:32:05.987 INFO [stderr] 39 |     pub fn is_nothing(&self) -> bool {
Dec 13 03:32:05.987 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 03:32:05.987 INFO [stderr] 
Dec 13 03:32:05.987 INFO [stderr] warning: struct is never constructed: `Board`
Dec 13 03:32:05.987 INFO [stderr]   --> src/board.rs:44:1
Dec 13 03:32:05.987 INFO [stderr]    |
Dec 13 03:32:05.987 INFO [stderr] 44 | pub struct Board {
Dec 13 03:32:05.987 INFO [stderr]    | ^^^^^^^^^^^^^^^^
Dec 13 03:32:05.987 INFO [stderr] 
Dec 13 03:32:05.987 INFO [stderr] warning: method is never used: `new`
Dec 13 03:32:05.987 INFO [stderr]   --> src/board.rs:50:5
Dec 13 03:32:05.987 INFO [stderr]    |
Dec 13 03:32:05.987 INFO [stderr] 50 |     pub fn new() -> Board {
Dec 13 03:32:05.987 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Dec 13 03:32:05.987 INFO [stderr] 
Dec 13 03:32:05.987 INFO [stderr] warning: method is never used: `gen`
Dec 13 03:32:05.987 INFO [stderr]   --> src/board.rs:61:5
Dec 13 03:32:05.987 INFO [stderr]    |
Dec 13 03:32:05.987 INFO [stderr] 61 |     pub fn gen(&mut self) {
Dec 13 03:32:05.987 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Dec 13 03:32:05.987 INFO [stderr] 
Dec 13 03:32:05.987 INFO [stderr] warning: method is never used: `color`
Dec 13 03:32:05.987 INFO [stderr]   --> src/board.rs:72:5
Dec 13 03:32:05.987 INFO [stderr]    |
Dec 13 03:32:05.987 INFO [stderr] 72 |     fn color(n: usize) -> Colour {
Dec 13 03:32:05.987 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 03:32:05.987 INFO [stderr] 
Dec 13 03:32:05.988 INFO [stderr] warning: method is never used: `format_line`
Dec 13 03:32:05.988 INFO [stderr]   --> src/board.rs:89:5
Dec 13 03:32:05.988 INFO [stderr]    |
Dec 13 03:32:05.988 INFO [stderr] 89 |     fn format_line(&self, n: usize, t: Option<usize>) -> String {
Dec 13 03:32:05.988 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 03:32:05.988 INFO [stderr] 
Dec 13 03:32:05.988 INFO [stderr] warning: method is never used: `render`
Dec 13 03:32:05.988 INFO [stderr]    --> src/board.rs:118:5
Dec 13 03:32:05.988 INFO [stderr]     |
Dec 13 03:32:05.988 INFO [stderr] 118 |     pub fn render(&self) {
Dec 13 03:32:05.988 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^
Dec 13 03:32:05.988 INFO [stderr] 
Dec 13 03:32:05.988 INFO [stderr] warning: method is never used: `get_tile`
Dec 13 03:32:05.988 INFO [stderr]    --> src/board.rs:171:5
Dec 13 03:32:05.988 INFO [stderr]     |
Dec 13 03:32:05.988 INFO [stderr] 171 |     pub fn get_tile(&self, n: usize) -> Option<&Tile> {
Dec 13 03:32:05.988 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 03:32:05.988 INFO [stderr] 
Dec 13 03:32:05.988 INFO [stderr] warning: method is never used: `get_score`
Dec 13 03:32:05.988 INFO [stderr]    --> src/board.rs:178:5
Dec 13 03:32:05.988 INFO [stderr]     |
Dec 13 03:32:05.988 INFO [stderr] 178 |     fn get_score(&self) -> usize {
Dec 13 03:32:05.988 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 03:32:05.988 INFO [stderr] 
Dec 13 03:32:05.988 INFO [stderr] warning: method is never used: `sum_score`
Dec 13 03:32:05.988 INFO [stderr]    --> src/board.rs:182:5
Dec 13 03:32:05.988 INFO [stderr]     |
Dec 13 03:32:05.988 INFO [stderr] 182 |     fn sum_score(&mut self) {
Dec 13 03:32:05.988 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 03:32:05.988 INFO [stderr] 
Dec 13 03:32:05.988 INFO [stderr] warning: method is never used: `render_parameter_box`
Dec 13 03:32:05.988 INFO [stderr]    --> src/board.rs:191:5
Dec 13 03:32:05.988 INFO [stderr]     |
Dec 13 03:32:05.988 INFO [stderr] 191 |     pub fn render_parameter_box(&mut self) {
Dec 13 03:32:05.988 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 03:32:05.988 INFO [stderr] 
Dec 13 03:32:05.988 INFO [stderr] warning: method is never used: `fin`
Dec 13 03:32:05.988 INFO [stderr]    --> src/board.rs:216:5
Dec 13 03:32:05.988 INFO [stderr]     |
Dec 13 03:32:05.988 INFO [stderr] 216 |     pub fn fin(&mut self) -> bool {
Dec 13 03:32:05.988 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 03:32:05.988 INFO [stderr] 
Dec 13 03:32:05.988 INFO [stderr] warning: struct is never constructed: `Update`
Dec 13 03:32:05.988 INFO [stderr]  --> src/app.rs:7:1
Dec 13 03:32:05.988 INFO [stderr]   |
Dec 13 03:32:05.988 INFO [stderr] 7 | pub struct Update();
Dec 13 03:32:05.988 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^
Dec 13 03:32:05.988 INFO [stderr] 
Dec 13 03:32:05.988 INFO [stderr] warning: method is never used: `update`
Dec 13 03:32:05.988 INFO [stderr]   --> src/app.rs:10:5
Dec 13 03:32:05.988 INFO [stderr]    |
Dec 13 03:32:05.988 INFO [stderr] 10 |     pub fn update(board: &mut board::Board) {
Dec 13 03:32:05.988 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 03:32:05.988 INFO [stderr] 
Dec 13 03:32:05.988 INFO [stderr] warning: method is never used: `up`
Dec 13 03:32:05.988 INFO [stderr]   --> src/app.rs:58:5
Dec 13 03:32:05.988 INFO [stderr]    |
Dec 13 03:32:05.988 INFO [stderr] 58 |     pub fn up(board: &mut board::Board) -> bool {
Dec 13 03:32:05.988 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 03:32:05.988 INFO [stderr] 
Dec 13 03:32:05.988 INFO [stderr] warning: method is never used: `down`
Dec 13 03:32:05.988 INFO [stderr]   --> src/app.rs:89:5
Dec 13 03:32:05.988 INFO [stderr]    |
Dec 13 03:32:05.988 INFO [stderr] 89 |     pub fn down(board: &mut board::Board) -> bool {
Dec 13 03:32:05.988 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 03:32:05.988 INFO [stderr] 
Dec 13 03:32:05.988 INFO [stderr] warning: method is never used: `left`
Dec 13 03:32:05.988 INFO [stderr]    --> src/app.rs:120:5
Dec 13 03:32:05.988 INFO [stderr]     |
Dec 13 03:32:05.988 INFO [stderr] 120 |     pub fn left(board: &mut board::Board) -> bool {
Dec 13 03:32:05.988 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 03:32:05.988 INFO [stderr] 
Dec 13 03:32:05.988 INFO [stderr] warning: method is never used: `right`
Dec 13 03:32:05.988 INFO [stderr]    --> src/app.rs:151:5
Dec 13 03:32:05.988 INFO [stderr]     |
Dec 13 03:32:05.988 INFO [stderr] 151 |     pub fn right(board: &mut board::Board) -> bool {
Dec 13 03:32:05.988 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 03:32:05.988 INFO [stderr] 
Dec 13 03:32:05.988 INFO [stderr] warning: method is never used: `is_finished`
Dec 13 03:32:05.988 INFO [stderr]    --> src/app.rs:182:5
Dec 13 03:32:05.988 INFO [stderr]     |
Dec 13 03:32:05.988 INFO [stderr] 182 |     pub fn is_finished(board: &board::Board) -> bool {
Dec 13 03:32:05.988 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 03:32:05.988 INFO [stderr] 
Dec 13 03:32:06.763 INFO [stderr] warning: method is never used: `is_nothing`
Dec 13 03:32:06.763 INFO [stderr]   --> src/board.rs:39:5
Dec 13 03:32:06.763 INFO [stderr]    |
Dec 13 03:32:06.763 INFO [stderr] 39 |     pub fn is_nothing(&self) -> bool {
Dec 13 03:32:06.763 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 03:32:06.763 INFO [stderr]    |
Dec 13 03:32:06.763 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 13 03:32:06.763 INFO [stderr] 
Dec 13 03:32:08.727 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.17s
Dec 13 03:32:08.731 INFO [stderr] su: No module specific data is present
Dec 13 03:32:10.078 INFO running `"docker" "inspect" "15109bc6df774c3549ad866fddee5fc9d82690559307f8e97ff42dc203918bc1"`
Dec 13 03:32:10.405 INFO running `"docker" "rm" "-f" "15109bc6df774c3549ad866fddee5fc9d82690559307f8e97ff42dc203918bc1"`
Dec 13 03:32:10.795 INFO [stdout] 15109bc6df774c3549ad866fddee5fc9d82690559307f8e97ff42dc203918bc1
Dec 13 03:32:10.801 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-4/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-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"`
Dec 13 03:32:11.264 INFO [stdout] 0b2000b94b35ece3e7b3fd0a2bdda63bda493d5b7c7321c6b80ccf06d340ea44
Dec 13 03:32:11.266 INFO running `"docker" "start" "-a" "0b2000b94b35ece3e7b3fd0a2bdda63bda493d5b7c7321c6b80ccf06d340ea44"`
Dec 13 03:32:12.778 INFO [stderr] usermod: no changes
Dec 13 03:32:12.891 INFO [stderr]    Compiling rs2048 v0.1.0 (/source)
Dec 13 03:32:13.871 INFO [stderr] warning: variant is never constructed: `Nothing`
Dec 13 03:32:13.871 INFO [stderr]   --> src/board.rs:13:5
Dec 13 03:32:13.871 INFO [stderr]    |
Dec 13 03:32:13.871 INFO [stderr] 13 |     Nothing,
Dec 13 03:32:13.871 INFO [stderr]    |     ^^^^^^^
Dec 13 03:32:13.871 INFO [stderr]    |
Dec 13 03:32:13.871 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 13 03:32:13.871 INFO [stderr] 
Dec 13 03:32:13.875 INFO [stderr] warning: variant is never constructed: `Exist`
Dec 13 03:32:13.875 INFO [stderr]   --> src/board.rs:14:5
Dec 13 03:32:13.875 INFO [stderr]    |
Dec 13 03:32:13.875 INFO [stderr] 14 |     Exist,
Dec 13 03:32:13.875 INFO [stderr]    |     ^^^^^
Dec 13 03:32:13.875 INFO [stderr] 
Dec 13 03:32:13.875 INFO [stderr] warning: method is never used: `new`
Dec 13 03:32:13.875 INFO [stderr]   --> src/board.rs:24:5
Dec 13 03:32:13.875 INFO [stderr]    |
Dec 13 03:32:13.875 INFO [stderr] 24 |     pub fn new(score: usize, status: Status) -> Tile {
Dec 13 03:32:13.875 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 03:32:13.875 INFO [stderr] 
Dec 13 03:32:13.875 INFO [stderr] warning: method is never used: `get_score`
Dec 13 03:32:13.875 INFO [stderr]   --> src/board.rs:31:5
Dec 13 03:32:13.875 INFO [stderr]    |
Dec 13 03:32:13.875 INFO [stderr] 31 |     pub fn get_score(&self) -> usize {
Dec 13 03:32:13.875 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 03:32:13.875 INFO [stderr] 
Dec 13 03:32:13.875 INFO [stderr] warning: method is never used: `is_exist`
Dec 13 03:32:13.875 INFO [stderr]   --> src/board.rs:35:5
Dec 13 03:32:13.875 INFO [stderr]    |
Dec 13 03:32:13.875 INFO [stderr] 35 |     pub fn is_exist(&self) -> bool {
Dec 13 03:32:13.875 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 03:32:13.875 INFO [stderr] 
Dec 13 03:32:13.875 INFO [stderr] warning: method is never used: `is_nothing`
Dec 13 03:32:13.875 INFO [stderr]   --> src/board.rs:39:5
Dec 13 03:32:13.875 INFO [stderr]    |
Dec 13 03:32:13.875 INFO [stderr] 39 |     pub fn is_nothing(&self) -> bool {
Dec 13 03:32:13.875 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 03:32:13.876 INFO [stderr] 
Dec 13 03:32:13.876 INFO [stderr] warning: struct is never constructed: `Board`
Dec 13 03:32:13.876 INFO [stderr]   --> src/board.rs:44:1
Dec 13 03:32:13.876 INFO [stderr]    |
Dec 13 03:32:13.876 INFO [stderr] 44 | pub struct Board {
Dec 13 03:32:13.876 INFO [stderr]    | ^^^^^^^^^^^^^^^^
Dec 13 03:32:13.876 INFO [stderr] 
Dec 13 03:32:13.876 INFO [stderr] warning: method is never used: `new`
Dec 13 03:32:13.876 INFO [stderr]   --> src/board.rs:50:5
Dec 13 03:32:13.876 INFO [stderr]    |
Dec 13 03:32:13.876 INFO [stderr] 50 |     pub fn new() -> Board {
Dec 13 03:32:13.876 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Dec 13 03:32:13.876 INFO [stderr] 
Dec 13 03:32:13.876 INFO [stderr] warning: method is never used: `gen`
Dec 13 03:32:13.876 INFO [stderr]   --> src/board.rs:61:5
Dec 13 03:32:13.876 INFO [stderr]    |
Dec 13 03:32:13.876 INFO [stderr] 61 |     pub fn gen(&mut self) {
Dec 13 03:32:13.876 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Dec 13 03:32:13.876 INFO [stderr] 
Dec 13 03:32:13.876 INFO [stderr] warning: method is never used: `color`
Dec 13 03:32:13.876 INFO [stderr]   --> src/board.rs:72:5
Dec 13 03:32:13.876 INFO [stderr]    |
Dec 13 03:32:13.876 INFO [stderr] 72 |     fn color(n: usize) -> Colour {
Dec 13 03:32:13.876 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 03:32:13.876 INFO [stderr] 
Dec 13 03:32:13.876 INFO [stderr] warning: method is never used: `format_line`
Dec 13 03:32:13.876 INFO [stderr]   --> src/board.rs:89:5
Dec 13 03:32:13.876 INFO [stderr]    |
Dec 13 03:32:13.876 INFO [stderr] 89 |     fn format_line(&self, n: usize, t: Option<usize>) -> String {
Dec 13 03:32:13.876 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 03:32:13.876 INFO [stderr] 
Dec 13 03:32:13.876 INFO [stderr] warning: method is never used: `render`
Dec 13 03:32:13.876 INFO [stderr]    --> src/board.rs:118:5
Dec 13 03:32:13.876 INFO [stderr]     |
Dec 13 03:32:13.876 INFO [stderr] 118 |     pub fn render(&self) {
Dec 13 03:32:13.876 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^
Dec 13 03:32:13.876 INFO [stderr] 
Dec 13 03:32:13.876 INFO [stderr] warning: method is never used: `get_tile`
Dec 13 03:32:13.876 INFO [stderr]    --> src/board.rs:171:5
Dec 13 03:32:13.876 INFO [stderr]     |
Dec 13 03:32:13.876 INFO [stderr] 171 |     pub fn get_tile(&self, n: usize) -> Option<&Tile> {
Dec 13 03:32:13.876 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 03:32:13.876 INFO [stderr] 
Dec 13 03:32:13.876 INFO [stderr] warning: method is never used: `get_score`
Dec 13 03:32:13.876 INFO [stderr]    --> src/board.rs:178:5
Dec 13 03:32:13.876 INFO [stderr]     |
Dec 13 03:32:13.876 INFO [stderr] 178 |     fn get_score(&self) -> usize {
Dec 13 03:32:13.876 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 03:32:13.876 INFO [stderr] 
Dec 13 03:32:13.876 INFO [stderr] warning: method is never used: `sum_score`
Dec 13 03:32:13.876 INFO [stderr]    --> src/board.rs:182:5
Dec 13 03:32:13.876 INFO [stderr]     |
Dec 13 03:32:13.876 INFO [stderr] 182 |     fn sum_score(&mut self) {
Dec 13 03:32:13.876 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 03:32:13.876 INFO [stderr] 
Dec 13 03:32:13.876 INFO [stderr] warning: method is never used: `render_parameter_box`
Dec 13 03:32:13.876 INFO [stderr]    --> src/board.rs:191:5
Dec 13 03:32:13.876 INFO [stderr]     |
Dec 13 03:32:13.876 INFO [stderr] 191 |     pub fn render_parameter_box(&mut self) {
Dec 13 03:32:13.876 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 03:32:13.876 INFO [stderr] 
Dec 13 03:32:13.876 INFO [stderr] warning: method is never used: `fin`
Dec 13 03:32:13.876 INFO [stderr]    --> src/board.rs:216:5
Dec 13 03:32:13.876 INFO [stderr]     |
Dec 13 03:32:13.876 INFO [stderr] 216 |     pub fn fin(&mut self) -> bool {
Dec 13 03:32:13.876 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 03:32:13.876 INFO [stderr] 
Dec 13 03:32:13.876 INFO [stderr] warning: struct is never constructed: `Update`
Dec 13 03:32:13.876 INFO [stderr]  --> src/app.rs:7:1
Dec 13 03:32:13.876 INFO [stderr]   |
Dec 13 03:32:13.876 INFO [stderr] 7 | pub struct Update();
Dec 13 03:32:13.876 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^
Dec 13 03:32:13.876 INFO [stderr] 
Dec 13 03:32:13.876 INFO [stderr] warning: method is never used: `update`
Dec 13 03:32:13.876 INFO [stderr]   --> src/app.rs:10:5
Dec 13 03:32:13.876 INFO [stderr]    |
Dec 13 03:32:13.876 INFO [stderr] 10 |     pub fn update(board: &mut board::Board) {
Dec 13 03:32:13.876 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 03:32:13.876 INFO [stderr] 
Dec 13 03:32:13.876 INFO [stderr] warning: method is never used: `up`
Dec 13 03:32:13.876 INFO [stderr]   --> src/app.rs:58:5
Dec 13 03:32:13.876 INFO [stderr]    |
Dec 13 03:32:13.876 INFO [stderr] 58 |     pub fn up(board: &mut board::Board) -> bool {
Dec 13 03:32:13.876 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 03:32:13.876 INFO [stderr] 
Dec 13 03:32:13.876 INFO [stderr] warning: method is never used: `down`
Dec 13 03:32:13.876 INFO [stderr]   --> src/app.rs:89:5
Dec 13 03:32:13.876 INFO [stderr]    |
Dec 13 03:32:13.877 INFO [stderr] 89 |     pub fn down(board: &mut board::Board) -> bool {
Dec 13 03:32:13.877 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 03:32:13.877 INFO [stderr] 
Dec 13 03:32:13.877 INFO [stderr] warning: method is never used: `left`
Dec 13 03:32:13.877 INFO [stderr]    --> src/app.rs:120:5
Dec 13 03:32:13.877 INFO [stderr]     |
Dec 13 03:32:13.877 INFO [stderr] 120 |     pub fn left(board: &mut board::Board) -> bool {
Dec 13 03:32:13.877 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 03:32:13.877 INFO [stderr] 
Dec 13 03:32:13.877 INFO [stderr] warning: method is never used: `right`
Dec 13 03:32:13.877 INFO [stderr]    --> src/app.rs:151:5
Dec 13 03:32:13.877 INFO [stderr]     |
Dec 13 03:32:13.877 INFO [stderr] 151 |     pub fn right(board: &mut board::Board) -> bool {
Dec 13 03:32:13.877 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 03:32:13.877 INFO [stderr] 
Dec 13 03:32:13.877 INFO [stderr] warning: method is never used: `is_finished`
Dec 13 03:32:13.877 INFO [stderr]    --> src/app.rs:182:5
Dec 13 03:32:13.877 INFO [stderr]     |
Dec 13 03:32:13.877 INFO [stderr] 182 |     pub fn is_finished(board: &board::Board) -> bool {
Dec 13 03:32:13.877 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 03:32:13.877 INFO [stderr] 
Dec 13 03:32:14.531 INFO [stderr] warning: method is never used: `is_nothing`
Dec 13 03:32:14.531 INFO [stderr]   --> src/board.rs:39:5
Dec 13 03:32:14.531 INFO [stderr]    |
Dec 13 03:32:14.531 INFO [stderr] 39 |     pub fn is_nothing(&self) -> bool {
Dec 13 03:32:14.531 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 03:32:14.531 INFO [stderr]    |
Dec 13 03:32:14.531 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 13 03:32:14.531 INFO [stderr] 
Dec 13 03:32:15.132 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.33s
Dec 13 03:32:15.137 INFO [stderr] su: No module specific data is present
Dec 13 03:32:16.343 INFO running `"docker" "inspect" "0b2000b94b35ece3e7b3fd0a2bdda63bda493d5b7c7321c6b80ccf06d340ea44"`
Dec 13 03:32:16.592 INFO running `"docker" "rm" "-f" "0b2000b94b35ece3e7b3fd0a2bdda63bda493d5b7c7321c6b80ccf06d340ea44"`
Dec 13 03:32:16.931 INFO [stdout] 0b2000b94b35ece3e7b3fd0a2bdda63bda493d5b7c7321c6b80ccf06d340ea44
Dec 13 03:32:16.939 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-4/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-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"`
Dec 13 03:32:17.583 INFO [stdout] 4a528342df0a0f1751202ca7c4383b61a9fa7864eafc8d6405b4d96252360728
Dec 13 03:32:17.583 INFO running `"docker" "start" "-a" "4a528342df0a0f1751202ca7c4383b61a9fa7864eafc8d6405b4d96252360728"`
Dec 13 03:32:19.327 INFO [stderr] usermod: no changes
Dec 13 03:32:19.459 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.09s
Dec 13 03:32:19.459 INFO [stderr]      Running /target/debug/deps/rs2048-0e85b732364904ea
Dec 13 03:32:19.467 INFO [stdout] 
Dec 13 03:32:19.467 INFO [stdout] running 0 tests
Dec 13 03:32:19.467 INFO [stdout] 
Dec 13 03:32:19.467 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 13 03:32:19.467 INFO [stdout] 
Dec 13 03:32:19.471 INFO [stderr]      Running /target/debug/deps/rs2048-8db28680d338c108
Dec 13 03:32:19.475 INFO [stderr]    Doc-tests rs2048
Dec 13 03:32:19.475 INFO [stdout] 
Dec 13 03:32:19.475 INFO [stdout] running 0 tests
Dec 13 03:32:19.475 INFO [stdout] 
Dec 13 03:32:19.475 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 13 03:32:19.475 INFO [stdout] 
Dec 13 03:32:19.955 INFO [stdout] 
Dec 13 03:32:19.955 INFO [stdout] running 0 tests
Dec 13 03:32:19.956 INFO [stdout] 
Dec 13 03:32:19.956 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 13 03:32:19.956 INFO [stdout] 
Dec 13 03:32:19.963 INFO [stderr] su: No module specific data is present
Dec 13 03:32:20.580 INFO running `"docker" "inspect" "4a528342df0a0f1751202ca7c4383b61a9fa7864eafc8d6405b4d96252360728"`
Dec 13 03:32:20.887 INFO running `"docker" "rm" "-f" "4a528342df0a0f1751202ca7c4383b61a9fa7864eafc8d6405b4d96252360728"`
Dec 13 03:32:21.187 INFO [stdout] 4a528342df0a0f1751202ca7c4383b61a9fa7864eafc8d6405b4d96252360728