[INFO] cloning repository https://github.com/r3g492/wasm-game
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/r3g492/wasm-game" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fr3g492%2Fwasm-game", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fr3g492%2Fwasm-game'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a3c3283cbe25baab0502aadf8b52b4d9f1b34248
[INFO] checking r3g492/wasm-game against master#8ecaad85f61375b18e1667b51a3ef350121d2ca0 for pr-106465
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fr3g492%2Fwasm-game" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/r3g492/wasm-game on toolchain 8ecaad85f61375b18e1667b51a3ef350121d2ca0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8ecaad85f61375b18e1667b51a3ef350121d2ca0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/r3g492/wasm-game
[INFO] finished tweaking git repo https://github.com/r3g492/wasm-game
[INFO] tweaked toml for git repo https://github.com/r3g492/wasm-game written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/r3g492/wasm-game already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8ecaad85f61375b18e1667b51a3ef350121d2ca0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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@sha256:9042d5c95763f71f7b0904716b98ccadf9fc47b0f382ee962aaaed2ac70c9b8d" "/opt/rustwide/cargo-home/bin/cargo" "+8ecaad85f61375b18e1667b51a3ef350121d2ca0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7481a18a91af175383652a2bae8dc60eb05a3803c1afd9ad22409bf19b77af70
[INFO] running `Command { std: "docker" "start" "-a" "7481a18a91af175383652a2bae8dc60eb05a3803c1afd9ad22409bf19b77af70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7481a18a91af175383652a2bae8dc60eb05a3803c1afd9ad22409bf19b77af70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7481a18a91af175383652a2bae8dc60eb05a3803c1afd9ad22409bf19b77af70", kill_on_drop: false }`
[INFO] [stdout] 7481a18a91af175383652a2bae8dc60eb05a3803c1afd9ad22409bf19b77af70
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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" "RUSTDOCFLAGS=--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@sha256:9042d5c95763f71f7b0904716b98ccadf9fc47b0f382ee962aaaed2ac70c9b8d" "/opt/rustwide/cargo-home/bin/cargo" "+8ecaad85f61375b18e1667b51a3ef350121d2ca0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 798af343a76c8bdfebba2ec1558d3220b2e432b1ba8916ef1f446bb72a994be0
[INFO] running `Command { std: "docker" "start" "-a" "798af343a76c8bdfebba2ec1558d3220b2e432b1ba8916ef1f446bb72a994be0", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.37
[INFO] [stderr]    Compiling unicode-xid v0.2.3
[INFO] [stderr]    Compiling syn v1.0.92
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.80
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling bumpalo v3.9.1
[INFO] [stderr]    Compiling wasm-bindgen v0.2.80
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.80
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.80
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.80
[INFO] [stderr]     Checking wasm-game v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]  --> src/lib.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::rc::Rc;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `wasm_bindgen::JsCast`
[INFO] [stdout]  --> src/lib.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use wasm_bindgen::JsCast;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]  --> src/lib.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::rc::Rc;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fmt`
[INFO] [stdout]  --> src/lib.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::fmt;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `wasm_bindgen::JsCast`
[INFO] [stdout]  --> src/lib.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use wasm_bindgen::JsCast;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fmt`
[INFO] [stdout]  --> src/lib.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::fmt;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: private type `World` in public interface (error E0446)
[INFO] [stdout]   --> src/lib.rs:57:1
[INFO] [stdout]    |
[INFO] [stdout] 57 | #[wasm_bindgen]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
[INFO] [stdout]    = note: `#[warn(private_in_public)]` on by default
[INFO] [stdout]    = note: this warning originates in the attribute macro `wasm_bindgen::prelude::__wasm_bindgen_class_marker` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: private type `World` in public interface (error E0446)
[INFO] [stdout]   --> src/lib.rs:57:1
[INFO] [stdout]    |
[INFO] [stdout] 57 | #[wasm_bindgen]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
[INFO] [stdout]    = note: `#[warn(private_in_public)]` on by default
[INFO] [stdout]    = note: this warning originates in the attribute macro `wasm_bindgen::prelude::__wasm_bindgen_class_marker` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: private type `SnakeCell` in public interface (error E0446)
[INFO] [stdout]   --> src/lib.rs:57:1
[INFO] [stdout]    |
[INFO] [stdout] 57 | #[wasm_bindgen]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
[INFO] [stdout]    = note: this warning originates in the attribute macro `wasm_bindgen::prelude::__wasm_bindgen_class_marker` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: private type `SnakeCell` in public interface (error E0446)
[INFO] [stdout]   --> src/lib.rs:57:1
[INFO] [stdout]    |
[INFO] [stdout] 57 | #[wasm_bindgen]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
[INFO] [stdout]    = note: this warning originates in the attribute macro `wasm_bindgen::prelude::__wasm_bindgen_class_marker` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `body` and `direction` are never read
[INFO] [stdout]   --> src/lib.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub struct Snake {
[INFO] [stdout]    |            ----- fields in this struct
[INFO] [stdout] 30 |     body: Vec<SnakeCell>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 31 |     direction: Direction,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `body` and `direction` are never read
[INFO] [stdout]   --> src/lib.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub struct Snake {
[INFO] [stdout]    |            ----- fields in this struct
[INFO] [stdout] 30 |     body: Vec<SnakeCell>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 31 |     direction: Direction,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple fields are never read
[INFO] [stdout]   --> src/lib.rs:48:5
[INFO] [stdout]    |
[INFO] [stdout] 47 | struct World {
[INFO] [stdout]    |        ----- fields in this struct
[INFO] [stdout] 48 |     width: usize,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 49 |     size: usize,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 50 |     snake: Snake,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 51 |     next_cell: Option<SnakeCell>,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 52 |     reward_cell: Option<usize>,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 53 |     status: Option<GameStatus>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 54 |     points: usize,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple fields are never read
[INFO] [stdout]   --> src/lib.rs:48:5
[INFO] [stdout]    |
[INFO] [stdout] 47 | struct World {
[INFO] [stdout]    |        ----- fields in this struct
[INFO] [stdout] 48 |     width: usize,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 49 |     size: usize,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 50 |     snake: Snake,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 51 |     next_cell: Option<SnakeCell>,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 52 |     reward_cell: Option<usize>,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 53 |     status: Option<GameStatus>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 54 |     points: usize,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/lib.rs:34:8
[INFO] [stdout]    |
[INFO] [stdout] 34 |     fn new(spawn_index: usize, size: usize) -> Snake {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/lib.rs:59:12
[INFO] [stdout]    |
[INFO] [stdout] 59 |     pub fn new(width: usize, snake_idx: usize) -> World {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/lib.rs:34:8
[INFO] [stdout]    |
[INFO] [stdout] 34 |     fn new(spawn_index: usize, size: usize) -> Snake {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `gen_reward_cell` is never used
[INFO] [stdout]   --> src/lib.rs:74:8
[INFO] [stdout]    |
[INFO] [stdout] 74 |     fn gen_reward_cell(max: usize, snake_body: &Vec<SnakeCell>) -> Option<usize> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `points` is never used
[INFO] [stdout]   --> src/lib.rs:86:12
[INFO] [stdout]    |
[INFO] [stdout] 86 |     pub fn points(&self) -> usize {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `reward_cell` is never used
[INFO] [stdout]   --> src/lib.rs:91:12
[INFO] [stdout]    |
[INFO] [stdout] 91 |     pub fn reward_cell(&self) -> Option<usize> {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/lib.rs:59:12
[INFO] [stdout]    |
[INFO] [stdout] 59 |     pub fn new(width: usize, snake_idx: usize) -> World {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `start_game` is never used
[INFO] [stdout]   --> src/lib.rs:95:12
[INFO] [stdout]    |
[INFO] [stdout] 95 |     pub fn start_game(&mut self) {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `gen_reward_cell` is never used
[INFO] [stdout]   --> src/lib.rs:74:8
[INFO] [stdout]    |
[INFO] [stdout] 74 |     fn gen_reward_cell(max: usize, snake_body: &Vec<SnakeCell>) -> Option<usize> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `game_status` is never used
[INFO] [stdout]   --> src/lib.rs:99:12
[INFO] [stdout]    |
[INFO] [stdout] 99 |     pub fn game_status(&self) -> Option<GameStatus> {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `points` is never used
[INFO] [stdout]   --> src/lib.rs:86:12
[INFO] [stdout]    |
[INFO] [stdout] 86 |     pub fn points(&self) -> usize {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `game_status_text` is never used
[INFO] [stdout]    --> src/lib.rs:103:12
[INFO] [stdout]     |
[INFO] [stdout] 103 |     pub fn game_status_text(&self) -> String {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `reward_cell` is never used
[INFO] [stdout]   --> src/lib.rs:91:12
[INFO] [stdout]    |
[INFO] [stdout] 91 |     pub fn reward_cell(&self) -> Option<usize> {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `change_snake_dir` is never used
[INFO] [stdout]    --> src/lib.rs:112:12
[INFO] [stdout]     |
[INFO] [stdout] 112 |     pub fn change_snake_dir(&mut self, direction: Direction) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `start_game` is never used
[INFO] [stdout]   --> src/lib.rs:95:12
[INFO] [stdout]    |
[INFO] [stdout] 95 |     pub fn start_game(&mut self) {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `snake_length` is never used
[INFO] [stdout]    --> src/lib.rs:129:12
[INFO] [stdout]     |
[INFO] [stdout] 129 |     pub fn snake_length(&self) -> usize {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `game_status` is never used
[INFO] [stdout]   --> src/lib.rs:99:12
[INFO] [stdout]    |
[INFO] [stdout] 99 |     pub fn game_status(&self) -> Option<GameStatus> {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `snake_cells` is never used
[INFO] [stdout]    --> src/lib.rs:134:12
[INFO] [stdout]     |
[INFO] [stdout] 134 |     pub fn snake_cells(&self) -> *const SnakeCell {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `game_status_text` is never used
[INFO] [stdout]    --> src/lib.rs:103:12
[INFO] [stdout]     |
[INFO] [stdout] 103 |     pub fn game_status_text(&self) -> String {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `width` is never used
[INFO] [stdout]    --> src/lib.rs:138:12
[INFO] [stdout]     |
[INFO] [stdout] 138 |     pub fn width(&self) -> usize {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `snake_head_idx` is never used
[INFO] [stdout]    --> src/lib.rs:141:12
[INFO] [stdout]     |
[INFO] [stdout] 141 |     pub fn snake_head_idx(&self) -> usize {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `step` is never used
[INFO] [stdout]    --> src/lib.rs:144:12
[INFO] [stdout]     |
[INFO] [stdout] 144 |     pub fn step(&mut self) {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `change_snake_dir` is never used
[INFO] [stdout]    --> src/lib.rs:112:12
[INFO] [stdout]     |
[INFO] [stdout] 112 |     pub fn change_snake_dir(&mut self, direction: Direction) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `gen_next_snake_cell` is never used
[INFO] [stdout]    --> src/lib.rs:189:8
[INFO] [stdout]     |
[INFO] [stdout] 189 |     fn gen_next_snake_cell(&self, direction : &Direction) -> SnakeCell {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `snake_length` is never used
[INFO] [stdout]    --> src/lib.rs:129:12
[INFO] [stdout]     |
[INFO] [stdout] 129 |     pub fn snake_length(&self) -> usize {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `snake_cells` is never used
[INFO] [stdout]    --> src/lib.rs:134:12
[INFO] [stdout]     |
[INFO] [stdout] 134 |     pub fn snake_cells(&self) -> *const SnakeCell {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `width` is never used
[INFO] [stdout]    --> src/lib.rs:138:12
[INFO] [stdout]     |
[INFO] [stdout] 138 |     pub fn width(&self) -> usize {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `snake_head_idx` is never used
[INFO] [stdout]    --> src/lib.rs:141:12
[INFO] [stdout]     |
[INFO] [stdout] 141 |     pub fn snake_head_idx(&self) -> usize {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `step` is never used
[INFO] [stdout]    --> src/lib.rs:144:12
[INFO] [stdout]     |
[INFO] [stdout] 144 |     pub fn step(&mut self) {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `gen_next_snake_cell` is never used
[INFO] [stdout]    --> src/lib.rs:189:8
[INFO] [stdout]     |
[INFO] [stdout] 189 |     fn gen_next_snake_cell(&self, direction : &Direction) -> SnakeCell {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 22 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 22 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.73s
[INFO] running `Command { std: "docker" "inspect" "798af343a76c8bdfebba2ec1558d3220b2e432b1ba8916ef1f446bb72a994be0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "798af343a76c8bdfebba2ec1558d3220b2e432b1ba8916ef1f446bb72a994be0", kill_on_drop: false }`
[INFO] [stdout] 798af343a76c8bdfebba2ec1558d3220b2e432b1ba8916ef1f446bb72a994be0