[INFO] cloning repository https://github.com/shinkwhek/rs2048
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/shinkwhek/rs2048" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshinkwhek%2Frs2048", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshinkwhek%2Frs2048'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9dead87635a1b8a31c8348147960801b2a0082f5
[INFO] testing shinkwhek/rs2048 against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshinkwhek%2Frs2048" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/shinkwhek/rs2048 on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/shinkwhek/rs2048
[INFO] finished tweaking git repo https://github.com/shinkwhek/rs2048
[INFO] tweaked toml for git repo https://github.com/shinkwhek/rs2048 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/shinkwhek/rs2048 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c71136ec917c318987e9c1478060bfc2f8d8570360e9bd088c9f6359f8cd53c0
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "c71136ec917c318987e9c1478060bfc2f8d8570360e9bd088c9f6359f8cd53c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c71136ec917c318987e9c1478060bfc2f8d8570360e9bd088c9f6359f8cd53c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c71136ec917c318987e9c1478060bfc2f8d8570360e9bd088c9f6359f8cd53c0", kill_on_drop: false }`
[INFO] [stdout] c71136ec917c318987e9c1478060bfc2f8d8570360e9bd088c9f6359f8cd53c0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 66d89f5cf8ef53d6973b2355f7aae16aabb340c4a8893281fca3f259c0a68ec6
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "66d89f5cf8ef53d6973b2355f7aae16aabb340c4a8893281fca3f259c0a68ec6", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.39
[INFO] [stderr]    Compiling unicode-width v0.1.4
[INFO] [stderr]    Compiling bitflags v0.4.0
[INFO] [stderr]    Compiling vec_map v0.8.0
[INFO] [stderr]    Compiling encode_unicode v0.1.3
[INFO] [stderr]    Compiling strsim v0.7.0
[INFO] [stderr]    Compiling bitflags v1.0.1
[INFO] [stderr]    Compiling ansi_term v0.9.0
[INFO] [stderr]    Compiling textwrap v0.9.0
[INFO] [stderr]    Compiling atty v0.2.8
[INFO] [stderr]    Compiling nix v0.5.1
[INFO] [stderr]    Compiling rand v0.4.2
[INFO] [stderr]    Compiling clap v2.31.1
[INFO] [stderr]    Compiling rustyline v1.0.0
[INFO] [stderr]    Compiling rs2048 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant is never constructed: `Nothing`
[INFO] [stdout]   --> src/board.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     Nothing,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Exist`
[INFO] [stdout]   --> src/board.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     Exist,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/board.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn new(score: usize, status: Status) -> Tile {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_score`
[INFO] [stdout]   --> src/board.rs:31:12
[INFO] [stdout]    |
[INFO] [stdout] 31 |     pub fn get_score(&self) -> usize {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_exist`
[INFO] [stdout]   --> src/board.rs:35:12
[INFO] [stdout]    |
[INFO] [stdout] 35 |     pub fn is_exist(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_nothing`
[INFO] [stdout]   --> src/board.rs:39:12
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub fn is_nothing(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Board`
[INFO] [stdout]   --> src/board.rs:44:12
[INFO] [stdout]    |
[INFO] [stdout] 44 | pub struct Board {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/board.rs:50:12
[INFO] [stdout]    |
[INFO] [stdout] 50 |     pub fn new() -> Board {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `gen`
[INFO] [stdout]   --> src/board.rs:61:12
[INFO] [stdout]    |
[INFO] [stdout] 61 |     pub fn gen(&mut self) {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `color`
[INFO] [stdout]   --> src/board.rs:72:8
[INFO] [stdout]    |
[INFO] [stdout] 72 |     fn color(n: usize) -> Colour {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `format_line`
[INFO] [stdout]   --> src/board.rs:89:8
[INFO] [stdout]    |
[INFO] [stdout] 89 |     fn format_line(&self, n: usize, t: Option<usize>) -> String {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `render`
[INFO] [stdout]    --> src/board.rs:118:12
[INFO] [stdout]     |
[INFO] [stdout] 118 |     pub fn render(&self) {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_tile`
[INFO] [stdout]    --> src/board.rs:171:12
[INFO] [stdout]     |
[INFO] [stdout] 171 |     pub fn get_tile(&self, n: usize) -> Option<&Tile> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_score`
[INFO] [stdout]    --> src/board.rs:178:8
[INFO] [stdout]     |
[INFO] [stdout] 178 |     fn get_score(&self) -> usize {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `sum_score`
[INFO] [stdout]    --> src/board.rs:182:8
[INFO] [stdout]     |
[INFO] [stdout] 182 |     fn sum_score(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `render_parameter_box`
[INFO] [stdout]    --> src/board.rs:191:12
[INFO] [stdout]     |
[INFO] [stdout] 191 |     pub fn render_parameter_box(&mut self) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `fin`
[INFO] [stdout]    --> src/board.rs:216:12
[INFO] [stdout]     |
[INFO] [stdout] 216 |     pub fn fin(&mut self) -> bool {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Update`
[INFO] [stdout]  --> src/app.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct Update();
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `update`
[INFO] [stdout]   --> src/app.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 |     pub fn update(board: &mut board::Board) {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `up`
[INFO] [stdout]   --> src/app.rs:58:12
[INFO] [stdout]    |
[INFO] [stdout] 58 |     pub fn up(board: &mut board::Board) -> bool {
[INFO] [stdout]    |            ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `down`
[INFO] [stdout]   --> src/app.rs:89:12
[INFO] [stdout]    |
[INFO] [stdout] 89 |     pub fn down(board: &mut board::Board) -> bool {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `left`
[INFO] [stdout]    --> src/app.rs:120:12
[INFO] [stdout]     |
[INFO] [stdout] 120 |     pub fn left(board: &mut board::Board) -> bool {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `right`
[INFO] [stdout]    --> src/app.rs:151:12
[INFO] [stdout]     |
[INFO] [stdout] 151 |     pub fn right(board: &mut board::Board) -> bool {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_finished`
[INFO] [stdout]    --> src/app.rs:182:12
[INFO] [stdout]     |
[INFO] [stdout] 182 |     pub fn is_finished(board: &board::Board) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 24 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_nothing`
[INFO] [stdout]   --> src/board.rs:39:12
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub fn is_nothing(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 20.43s
[INFO] running `Command { std: "docker" "inspect" "66d89f5cf8ef53d6973b2355f7aae16aabb340c4a8893281fca3f259c0a68ec6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66d89f5cf8ef53d6973b2355f7aae16aabb340c4a8893281fca3f259c0a68ec6", kill_on_drop: false }`
[INFO] [stdout] 66d89f5cf8ef53d6973b2355f7aae16aabb340c4a8893281fca3f259c0a68ec6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e6c6654ab11f4c6281410ba258b12065ee673afdf4de0feacbe64b4158626ae6
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "e6c6654ab11f4c6281410ba258b12065ee673afdf4de0feacbe64b4158626ae6", kill_on_drop: false }`
[INFO] [stderr]    Compiling rs2048 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant is never constructed: `Nothing`
[INFO] [stdout]   --> src/board.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     Nothing,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Exist`
[INFO] [stdout]   --> src/board.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     Exist,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/board.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn new(score: usize, status: Status) -> Tile {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_score`
[INFO] [stdout]   --> src/board.rs:31:12
[INFO] [stdout]    |
[INFO] [stdout] 31 |     pub fn get_score(&self) -> usize {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_exist`
[INFO] [stdout]   --> src/board.rs:35:12
[INFO] [stdout]    |
[INFO] [stdout] 35 |     pub fn is_exist(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_nothing`
[INFO] [stdout]   --> src/board.rs:39:12
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub fn is_nothing(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Board`
[INFO] [stdout]   --> src/board.rs:44:12
[INFO] [stdout]    |
[INFO] [stdout] 44 | pub struct Board {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/board.rs:50:12
[INFO] [stdout]    |
[INFO] [stdout] 50 |     pub fn new() -> Board {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `gen`
[INFO] [stdout]   --> src/board.rs:61:12
[INFO] [stdout]    |
[INFO] [stdout] 61 |     pub fn gen(&mut self) {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `color`
[INFO] [stdout]   --> src/board.rs:72:8
[INFO] [stdout]    |
[INFO] [stdout] 72 |     fn color(n: usize) -> Colour {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `format_line`
[INFO] [stdout]   --> src/board.rs:89:8
[INFO] [stdout]    |
[INFO] [stdout] 89 |     fn format_line(&self, n: usize, t: Option<usize>) -> String {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `render`
[INFO] [stdout]    --> src/board.rs:118:12
[INFO] [stdout]     |
[INFO] [stdout] 118 |     pub fn render(&self) {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_tile`
[INFO] [stdout]    --> src/board.rs:171:12
[INFO] [stdout]     |
[INFO] [stdout] 171 |     pub fn get_tile(&self, n: usize) -> Option<&Tile> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_score`
[INFO] [stdout]    --> src/board.rs:178:8
[INFO] [stdout]     |
[INFO] [stdout] 178 |     fn get_score(&self) -> usize {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `sum_score`
[INFO] [stdout]    --> src/board.rs:182:8
[INFO] [stdout]     |
[INFO] [stdout] 182 |     fn sum_score(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `render_parameter_box`
[INFO] [stdout]    --> src/board.rs:191:12
[INFO] [stdout]     |
[INFO] [stdout] 191 |     pub fn render_parameter_box(&mut self) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `fin`
[INFO] [stdout]    --> src/board.rs:216:12
[INFO] [stdout]     |
[INFO] [stdout] 216 |     pub fn fin(&mut self) -> bool {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Update`
[INFO] [stdout]  --> src/app.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct Update();
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `update`
[INFO] [stdout]   --> src/app.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 |     pub fn update(board: &mut board::Board) {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `up`
[INFO] [stdout]   --> src/app.rs:58:12
[INFO] [stdout]    |
[INFO] [stdout] 58 |     pub fn up(board: &mut board::Board) -> bool {
[INFO] [stdout]    |            ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `down`
[INFO] [stdout]   --> src/app.rs:89:12
[INFO] [stdout]    |
[INFO] [stdout] 89 |     pub fn down(board: &mut board::Board) -> bool {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `left`
[INFO] [stdout]    --> src/app.rs:120:12
[INFO] [stdout]     |
[INFO] [stdout] 120 |     pub fn left(board: &mut board::Board) -> bool {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `right`
[INFO] [stdout]    --> src/app.rs:151:12
[INFO] [stdout]     |
[INFO] [stdout] 151 |     pub fn right(board: &mut board::Board) -> bool {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_finished`
[INFO] [stdout]    --> src/app.rs:182:12
[INFO] [stdout]     |
[INFO] [stdout] 182 |     pub fn is_finished(board: &board::Board) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 24 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Nothing`
[INFO] [stdout]   --> src/board.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     Nothing,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Exist`
[INFO] [stdout]   --> src/board.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     Exist,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/board.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn new(score: usize, status: Status) -> Tile {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_score`
[INFO] [stdout]   --> src/board.rs:31:12
[INFO] [stdout]    |
[INFO] [stdout] 31 |     pub fn get_score(&self) -> usize {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_exist`
[INFO] [stdout]   --> src/board.rs:35:12
[INFO] [stdout]    |
[INFO] [stdout] 35 |     pub fn is_exist(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_nothing`
[INFO] [stdout]   --> src/board.rs:39:12
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub fn is_nothing(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Board`
[INFO] [stdout]   --> src/board.rs:44:12
[INFO] [stdout]    |
[INFO] [stdout] 44 | pub struct Board {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/board.rs:50:12
[INFO] [stdout]    |
[INFO] [stdout] 50 |     pub fn new() -> Board {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `gen`
[INFO] [stdout]   --> src/board.rs:61:12
[INFO] [stdout]    |
[INFO] [stdout] 61 |     pub fn gen(&mut self) {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `color`
[INFO] [stdout]   --> src/board.rs:72:8
[INFO] [stdout]    |
[INFO] [stdout] 72 |     fn color(n: usize) -> Colour {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `format_line`
[INFO] [stdout]   --> src/board.rs:89:8
[INFO] [stdout]    |
[INFO] [stdout] 89 |     fn format_line(&self, n: usize, t: Option<usize>) -> String {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `render`
[INFO] [stdout]    --> src/board.rs:118:12
[INFO] [stdout]     |
[INFO] [stdout] 118 |     pub fn render(&self) {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_tile`
[INFO] [stdout]    --> src/board.rs:171:12
[INFO] [stdout]     |
[INFO] [stdout] 171 |     pub fn get_tile(&self, n: usize) -> Option<&Tile> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_score`
[INFO] [stdout]    --> src/board.rs:178:8
[INFO] [stdout]     |
[INFO] [stdout] 178 |     fn get_score(&self) -> usize {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `sum_score`
[INFO] [stdout]    --> src/board.rs:182:8
[INFO] [stdout]     |
[INFO] [stdout] 182 |     fn sum_score(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `render_parameter_box`
[INFO] [stdout]    --> src/board.rs:191:12
[INFO] [stdout]     |
[INFO] [stdout] 191 |     pub fn render_parameter_box(&mut self) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `fin`
[INFO] [stdout]    --> src/board.rs:216:12
[INFO] [stdout]     |
[INFO] [stdout] 216 |     pub fn fin(&mut self) -> bool {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Update`
[INFO] [stdout]  --> src/app.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct Update();
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `update`
[INFO] [stdout]   --> src/app.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 |     pub fn update(board: &mut board::Board) {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `up`
[INFO] [stdout]   --> src/app.rs:58:12
[INFO] [stdout]    |
[INFO] [stdout] 58 |     pub fn up(board: &mut board::Board) -> bool {
[INFO] [stdout]    |            ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `down`
[INFO] [stdout]   --> src/app.rs:89:12
[INFO] [stdout]    |
[INFO] [stdout] 89 |     pub fn down(board: &mut board::Board) -> bool {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `left`
[INFO] [stdout]    --> src/app.rs:120:12
[INFO] [stdout]     |
[INFO] [stdout] 120 |     pub fn left(board: &mut board::Board) -> bool {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `right`
[INFO] [stdout]    --> src/app.rs:151:12
[INFO] [stdout]     |
[INFO] [stdout] 151 |     pub fn right(board: &mut board::Board) -> bool {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_finished`
[INFO] [stdout]    --> src/app.rs:182:12
[INFO] [stdout]     |
[INFO] [stdout] 182 |     pub fn is_finished(board: &board::Board) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_nothing`
[INFO] [stdout]   --> src/board.rs:39:12
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub fn is_nothing(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 24 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.85s
[INFO] running `Command { std: "docker" "inspect" "e6c6654ab11f4c6281410ba258b12065ee673afdf4de0feacbe64b4158626ae6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e6c6654ab11f4c6281410ba258b12065ee673afdf4de0feacbe64b4158626ae6", kill_on_drop: false }`
[INFO] [stdout] e6c6654ab11f4c6281410ba258b12065ee673afdf4de0feacbe64b4158626ae6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 99cd93c66380a9fb6249ceedc92ce6d2cceecb1aaa9c2c8e246d74bca1e9a49c
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "99cd93c66380a9fb6249ceedc92ce6d2cceecb1aaa9c2c8e246d74bca1e9a49c", kill_on_drop: false }`
[INFO] [stderr] warning: variant is never constructed: `Nothing`
[INFO] [stderr]   --> src/board.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     Nothing,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Exist`
[INFO] [stderr]   --> src/board.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     Exist,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/board.rs:24:12
[INFO] [stderr]    |
[INFO] [stderr] 24 |     pub fn new(score: usize, status: Status) -> Tile {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `get_score`
[INFO] [stderr]   --> src/board.rs:31:12
[INFO] [stderr]    |
[INFO] [stderr] 31 |     pub fn get_score(&self) -> usize {
[INFO] [stderr]    |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `is_exist`
[INFO] [stderr]   --> src/board.rs:35:12
[INFO] [stderr]    |
[INFO] [stderr] 35 |     pub fn is_exist(&self) -> bool {
[INFO] [stderr]    |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `is_nothing`
[INFO] [stderr]   --> src/board.rs:39:12
[INFO] [stderr]    |
[INFO] [stderr] 39 |     pub fn is_nothing(&self) -> bool {
[INFO] [stderr]    |            ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Board`
[INFO] [stderr]   --> src/board.rs:44:12
[INFO] [stderr]    |
[INFO] [stderr] 44 | pub struct Board {
[INFO] [stderr]    |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/board.rs:50:12
[INFO] [stderr]    |
[INFO] [stderr] 50 |     pub fn new() -> Board {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `gen`
[INFO] [stderr]   --> src/board.rs:61:12
[INFO] [stderr]    |
[INFO] [stderr] 61 |     pub fn gen(&mut self) {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `color`
[INFO] [stderr]   --> src/board.rs:72:8
[INFO] [stderr]    |
[INFO] [stderr] 72 |     fn color(n: usize) -> Colour {
[INFO] [stderr]    |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `format_line`
[INFO] [stderr]   --> src/board.rs:89:8
[INFO] [stderr]    |
[INFO] [stderr] 89 |     fn format_line(&self, n: usize, t: Option<usize>) -> String {
[INFO] [stderr]    |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `render`
[INFO] [stderr]    --> src/board.rs:118:12
[INFO] [stderr]     |
[INFO] [stderr] 118 |     pub fn render(&self) {
[INFO] [stderr]     |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `get_tile`
[INFO] [stderr]    --> src/board.rs:171:12
[INFO] [stderr]     |
[INFO] [stderr] 171 |     pub fn get_tile(&self, n: usize) -> Option<&Tile> {
[INFO] [stderr]     |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `get_score`
[INFO] [stderr]    --> src/board.rs:178:8
[INFO] [stderr]     |
[INFO] [stderr] 178 |     fn get_score(&self) -> usize {
[INFO] [stderr]     |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `sum_score`
[INFO] [stderr]    --> src/board.rs:182:8
[INFO] [stderr]     |
[INFO] [stderr] 182 |     fn sum_score(&mut self) {
[INFO] [stderr]     |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `render_parameter_box`
[INFO] [stderr]    --> src/board.rs:191:12
[INFO] [stderr]     |
[INFO] [stderr] 191 |     pub fn render_parameter_box(&mut self) {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `fin`
[INFO] [stderr]    --> src/board.rs:216:12
[INFO] [stderr]     |
[INFO] [stderr] 216 |     pub fn fin(&mut self) -> bool {
[INFO] [stderr]     |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Update`
[INFO] [stderr]  --> src/app.rs:7:12
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub struct Update();
[INFO] [stderr]   |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `update`
[INFO] [stderr]   --> src/app.rs:10:12
[INFO] [stderr]    |
[INFO] [stderr] 10 |     pub fn update(board: &mut board::Board) {
[INFO] [stderr]    |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `up`
[INFO] [stderr]   --> src/app.rs:58:12
[INFO] [stderr]    |
[INFO] [stderr] 58 |     pub fn up(board: &mut board::Board) -> bool {
[INFO] [stderr]    |            ^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `down`
[INFO] [stderr]   --> src/app.rs:89:12
[INFO] [stderr]    |
[INFO] [stderr] 89 |     pub fn down(board: &mut board::Board) -> bool {
[INFO] [stderr]    |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `left`
[INFO] [stderr]    --> src/app.rs:120:12
[INFO] [stderr]     |
[INFO] [stderr] 120 |     pub fn left(board: &mut board::Board) -> bool {
[INFO] [stderr]     |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `right`
[INFO] [stderr]    --> src/app.rs:151:12
[INFO] [stderr]     |
[INFO] [stderr] 151 |     pub fn right(board: &mut board::Board) -> bool {
[INFO] [stderr]     |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `is_finished`
[INFO] [stderr]    --> src/app.rs:182:12
[INFO] [stderr]     |
[INFO] [stderr] 182 |     pub fn is_finished(board: &board::Board) -> bool {
[INFO] [stderr]     |            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `rs2048` (lib) generated 24 warnings
[INFO] [stderr] warning: `rs2048` (lib test) generated 24 warnings (24 duplicates)
[INFO] [stderr] warning: associated function is never used: `is_nothing`
[INFO] [stderr]   --> src/board.rs:39:12
[INFO] [stderr]    |
[INFO] [stderr] 39 |     pub fn is_nothing(&self) -> bool {
[INFO] [stderr]    |            ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `rs2048` (bin "rs2048" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rs2048-6ec7a76fbb50018b)
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rs2048-63334cd007496ee7)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rs2048
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "99cd93c66380a9fb6249ceedc92ce6d2cceecb1aaa9c2c8e246d74bca1e9a49c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "99cd93c66380a9fb6249ceedc92ce6d2cceecb1aaa9c2c8e246d74bca1e9a49c", kill_on_drop: false }`
[INFO] [stdout] 99cd93c66380a9fb6249ceedc92ce6d2cceecb1aaa9c2c8e246d74bca1e9a49c