[INFO] updating cached repository https://github.com/RainerBlessing/wasm_snake
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] [stderr] From https://github.com/RainerBlessing/wasm_snake
[INFO] [stderr]  - [deleted]         (none)     -> dependabot/npm_and_yarn/acorn-6.4.1
[INFO] [stderr]  - [deleted]         (none)     -> dependabot/npm_and_yarn/lodash-4.17.15
[INFO] [stderr]  * [new branch]      dependabot/npm_and_yarn/mixin-deep-1.3.2 -> dependabot/npm_and_yarn/mixin-deep-1.3.2
[INFO] [stderr]    8241e3a..376f682  master     -> master
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 376f6824f3dcaa7e7728abe3fdfefc8b13d99c78
[INFO] checking RainerBlessing/wasm_snake against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRainerBlessing%2Fwasm_snake" "/workspace/builds/worker-6/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/RainerBlessing/wasm_snake on toolchain 45d050cde277b22a755847338f2acc2c7b834141
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/RainerBlessing/wasm_snake
[INFO] finished tweaking git repo https://github.com/RainerBlessing/wasm_snake
[INFO] tweaked toml for git repo https://github.com/RainerBlessing/wasm_snake written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/RainerBlessing/wasm_snake already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 616436d6e8271e36f8c6d0bcf56bc771844cbf4728c6a4f0383dbdfee4d76117
[INFO] running `"docker" "start" "-a" "616436d6e8271e36f8c6d0bcf56bc771844cbf4728c6a4f0383dbdfee4d76117"`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling libc v0.2.58
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.47
[INFO] [stderr]    Compiling autocfg v0.1.4
[INFO] [stderr]    Compiling bumpalo v2.4.3
[INFO] [stderr]    Compiling lazy_static v1.3.0
[INFO] [stderr]    Compiling memchr v2.2.0
[INFO] [stderr]    Compiling wasm-bindgen v0.2.47
[INFO] [stderr]    Compiling sourcefile v0.1.4
[INFO] [stderr]    Compiling log v0.4.6
[INFO] [stderr]    Compiling backtrace-sys v0.1.29
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]    Compiling quote v0.6.12
[INFO] [stderr]    Compiling syn v0.15.39
[INFO] [stderr]    Compiling backtrace v0.3.32
[INFO] [stderr]    Compiling weedle v0.9.0
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.47
[INFO] [stderr]    Compiling synstructure v0.10.2
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.47
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling failure v0.1.5
[INFO] [stderr]    Compiling wasm-bindgen-webidl v0.2.47
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.47
[INFO] [stderr]     Checking js-sys v0.3.24
[INFO] [stderr]    Compiling web-sys v0.3.24
[INFO] [stderr]     Checking canvas v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `std::time::Duration`
[INFO] [stderr]  --> src/canvas.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::time::Duration;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::path::Path`
[INFO] [stderr]  --> src/canvas.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::path::Path;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `HtmlCanvasElement`
[INFO] [stderr]   --> src/canvas.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     HtmlCanvasElement,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `cell::Cell`, `cell::RefCell`, `rc::Rc`
[INFO] [stderr]   --> src/canvas.rs:22:11
[INFO] [stderr]    |
[INFO] [stderr] 22 | use std::{rc::Rc, cell::RefCell, cell::Cell};
[INFO] [stderr]    |           ^^^^^^  ^^^^^^^^^^^^^  ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/canvas.rs:191:23
[INFO] [stderr]     |
[INFO] [stderr] 191 |             }) as Box<FnMut(KeyboardEvent)>);
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(KeyboardEvent)`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `wasm_bindgen::prelude::*`
[INFO] [stderr]  --> src/snake.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use wasm_bindgen::prelude::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]   --> src/lib.rs:20:1
[INFO] [stderr]    |
[INFO] [stderr] 20 | / macro_rules! console_log {
[INFO] [stderr] 21 | |     ($($t:tt)*) => (log(&format_args!($($t)*).to_string()))
[INFO] [stderr] 22 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_macros)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::time::Duration`
[INFO] [stderr]  --> src/canvas.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::time::Duration;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::path::Path`
[INFO] [stderr]  --> src/canvas.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::path::Path;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `HtmlCanvasElement`
[INFO] [stderr]   --> src/canvas.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     HtmlCanvasElement,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `cell::Cell`, `cell::RefCell`, `rc::Rc`
[INFO] [stderr]   --> src/canvas.rs:22:11
[INFO] [stderr]    |
[INFO] [stderr] 22 | use std::{rc::Rc, cell::RefCell, cell::Cell};
[INFO] [stderr]    |           ^^^^^^  ^^^^^^^^^^^^^  ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/canvas.rs:191:23
[INFO] [stderr]     |
[INFO] [stderr] 191 |             }) as Box<FnMut(KeyboardEvent)>);
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(KeyboardEvent)`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `wasm_bindgen::prelude::*`
[INFO] [stderr]  --> src/snake.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use wasm_bindgen::prelude::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]   --> src/lib.rs:20:1
[INFO] [stderr]    |
[INFO] [stderr] 20 | / macro_rules! console_log {
[INFO] [stderr] 21 | |     ($($t:tt)*) => (log(&format_args!($($t)*).to_string()))
[INFO] [stderr] 22 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_macros)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `start_time`
[INFO] [stderr]   --> src/lib.rs:38:13
[INFO] [stderr]    |
[INFO] [stderr] 38 |         let start_time = perf.now();
[INFO] [stderr]    |             ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_start_time`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `state`
[INFO] [stderr]    --> src/canvas.rs:261:25
[INFO] [stderr]     |
[INFO] [stderr] 261 | pub fn on_key(key: u32, state: bool) {
[INFO] [stderr]     |                         ^^^^^ help: if this is intentional, prefix it with an underscore: `_state`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `text`
[INFO] [stderr]   --> src/canvas.rs:83:41
[INFO] [stderr]    |
[INFO] [stderr] 83 |     pub fn create_score_text(&mut self, text: &str) -> () {
[INFO] [stderr]    |                                         ^^^^ help: if this is intentional, prefix it with an underscore: `_text`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `start_time`
[INFO] [stderr]   --> src/lib.rs:38:13
[INFO] [stderr]    |
[INFO] [stderr] 38 |         let start_time = perf.now();
[INFO] [stderr]    |             ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_start_time`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `state`
[INFO] [stderr]    --> src/canvas.rs:261:25
[INFO] [stderr]     |
[INFO] [stderr] 261 | pub fn on_key(key: u32, state: bool) {
[INFO] [stderr]     |                         ^^^^^ help: if this is intentional, prefix it with an underscore: `_state`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `text`
[INFO] [stderr]   --> src/canvas.rs:83:41
[INFO] [stderr]    |
[INFO] [stderr] 83 |     pub fn create_score_text(&mut self, text: &str) -> () {
[INFO] [stderr]    |                                         ^^^^ help: if this is intentional, prefix it with an underscore: `_text`
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Up`
[INFO] [stderr]   --> src/constants.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 |     Up,
[INFO] [stderr]    |     ^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Up`
[INFO] [stderr]   --> src/constants.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 |     Up,
[INFO] [stderr]    |     ^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Down`
[INFO] [stderr]   --> src/constants.rs:25:5
[INFO] [stderr]    |
[INFO] [stderr] 25 |     Down,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Left`
[INFO] [stderr]   --> src/constants.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 26 |     Left,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Down`
[INFO] [stderr]   --> src/constants.rs:25:5
[INFO] [stderr]    |
[INFO] [stderr] 25 |     Down,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Left`
[INFO] [stderr]   --> src/constants.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 26 |     Left,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Right`
[INFO] [stderr]   --> src/constants.rs:27:5
[INFO] [stderr]    |
[INFO] [stderr] 27 |     Right,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Unknown`
[INFO] [stderr]   --> src/constants.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 30 |     Unknown,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `canvas`
[INFO] [stderr]   --> src/canvas.rs:37:5
[INFO] [stderr]    |
[INFO] [stderr] 37 |     canvas: web_sys::HtmlCanvasElement,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `frame_delay`
[INFO] [stderr]   --> src/canvas.rs:38:5
[INFO] [stderr]    |
[INFO] [stderr] 38 |     frame_delay: i32,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `ticks`
[INFO] [stderr]   --> src/canvas.rs:39:5
[INFO] [stderr]    |
[INFO] [stderr] 39 |     ticks: i32,
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `HEIGHT`
[INFO] [stderr]   --> src/canvas.rs:46:1
[INFO] [stderr]    |
[INFO] [stderr] 46 | const HEIGHT: u32 = 800;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Right`
[INFO] [stderr]   --> src/constants.rs:27:5
[INFO] [stderr]    |
[INFO] [stderr] 27 |     Right,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `create_score_text`
[INFO] [stderr]   --> src/canvas.rs:83:5
[INFO] [stderr]    |
[INFO] [stderr] 83 |     pub fn create_score_text(&mut self, text: &str) -> () {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `parse_event`
[INFO] [stderr]    --> src/canvas.rs:143:5
[INFO] [stderr]     |
[INFO] [stderr] 143 |     fn parse_event(&mut self, snake_event: SnakeEvent) -> () {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `SnakeEvent`
[INFO] [stderr]  --> src/events.rs:6:12
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub struct SnakeEvent {
[INFO] [stderr]   |            ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Unknown`
[INFO] [stderr]   --> src/constants.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 30 |     Unknown,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/events.rs:11:9
[INFO] [stderr]    |
[INFO] [stderr] 11 |         pub fn new(key_code: u32) -> SnakeEvent {
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_key`
[INFO] [stderr]   --> src/events.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     pub fn get_key(&self) -> Keyboard {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/snake.rs:29:5
[INFO] [stderr]    |
[INFO] [stderr] 29 |     pub fn new() -> Snake {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `canvas`
[INFO] [stderr]   --> src/canvas.rs:37:5
[INFO] [stderr]    |
[INFO] [stderr] 37 |     canvas: web_sys::HtmlCanvasElement,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `perf_to_system`
[INFO] [stderr]   --> src/lib.rs:54:4
[INFO] [stderr]    |
[INFO] [stderr] 54 | fn perf_to_system(amt: f64) -> SystemTime {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `frame_delay`
[INFO] [stderr]   --> src/canvas.rs:38:5
[INFO] [stderr]    |
[INFO] [stderr] 38 |     frame_delay: i32,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `ticks`
[INFO] [stderr]   --> src/canvas.rs:39:5
[INFO] [stderr]    |
[INFO] [stderr] 39 |     ticks: i32,
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `HEIGHT`
[INFO] [stderr]   --> src/canvas.rs:46:1
[INFO] [stderr]    |
[INFO] [stderr] 46 | const HEIGHT: u32 = 800;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `create_score_text`
[INFO] [stderr]   --> src/canvas.rs:83:5
[INFO] [stderr]    |
[INFO] [stderr] 83 |     pub fn create_score_text(&mut self, text: &str) -> () {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `parse_event`
[INFO] [stderr]    --> src/canvas.rs:143:5
[INFO] [stderr]     |
[INFO] [stderr] 143 |     fn parse_event(&mut self, snake_event: SnakeEvent) -> () {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `SnakeEvent`
[INFO] [stderr]  --> src/events.rs:6:12
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub struct SnakeEvent {
[INFO] [stderr]   |            ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/events.rs:11:9
[INFO] [stderr]    |
[INFO] [stderr] 11 |         pub fn new(key_code: u32) -> SnakeEvent {
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_key`
[INFO] [stderr]   --> src/events.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     pub fn get_key(&self) -> Keyboard {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/snake.rs:29:5
[INFO] [stderr]    |
[INFO] [stderr] 29 |     pub fn new() -> Snake {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `perf_to_system`
[INFO] [stderr]   --> src/lib.rs:54:4
[INFO] [stderr]    |
[INFO] [stderr] 54 | fn perf_to_system(amt: f64) -> SystemTime {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 26 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 26 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 21s
[INFO] running `"docker" "inspect" "616436d6e8271e36f8c6d0bcf56bc771844cbf4728c6a4f0383dbdfee4d76117"`
[INFO] running `"docker" "rm" "-f" "616436d6e8271e36f8c6d0bcf56bc771844cbf4728c6a4f0383dbdfee4d76117"`
[INFO] [stdout] 616436d6e8271e36f8c6d0bcf56bc771844cbf4728c6a4f0383dbdfee4d76117