[INFO] cloning repository https://github.com/Orenchon/chip8_mary
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Orenchon/chip8_mary" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FOrenchon%2Fchip8_mary", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FOrenchon%2Fchip8_mary'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f65357200c2ab94fe42abde662b620beeee0ea3b
[INFO] checking Orenchon/chip8_mary against master#cfbc6d4cf1acbac5c025acf8ed68929caa551df3 for pr-75494-beta
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FOrenchon%2Fchip8_mary" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Orenchon/chip8_mary on toolchain cfbc6d4cf1acbac5c025acf8ed68929caa551df3
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cfbc6d4cf1acbac5c025acf8ed68929caa551df3" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Orenchon/chip8_mary
[INFO] finished tweaking git repo https://github.com/Orenchon/chip8_mary
[INFO] tweaked toml for git repo https://github.com/Orenchon/chip8_mary written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/Orenchon/chip8_mary already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cfbc6d4cf1acbac5c025acf8ed68929caa551df3" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+cfbc6d4cf1acbac5c025acf8ed68929caa551df3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dbae5dc05dc2f01ab2856af2bd1dd57b20e58a35fbdf25d8cd460c32583a772b
[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" "dbae5dc05dc2f01ab2856af2bd1dd57b20e58a35fbdf25d8cd460c32583a772b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dbae5dc05dc2f01ab2856af2bd1dd57b20e58a35fbdf25d8cd460c32583a772b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dbae5dc05dc2f01ab2856af2bd1dd57b20e58a35fbdf25d8cd460c32583a772b", kill_on_drop: false }`
[INFO] [stdout] dbae5dc05dc2f01ab2856af2bd1dd57b20e58a35fbdf25d8cd460c32583a772b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+cfbc6d4cf1acbac5c025acf8ed68929caa551df3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ae87f205b0c6e778f8829a30dc9e110aabf639818845b94b500dfc3a59e76cbd
[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" "ae87f205b0c6e778f8829a30dc9e110aabf639818845b94b500dfc3a59e76cbd", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking libc v0.2.43
[INFO] [stderr]    Compiling cfg-if v0.1.5
[INFO] [stderr]     Checking rand_core v0.2.1
[INFO] [stderr]     Checking num-integer v0.1.39
[INFO] [stderr]    Compiling sdl2-sys v0.31.0
[INFO] [stderr]     Checking num-iter v0.1.37
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking rand v0.4.3
[INFO] [stderr]     Checking rand v0.5.5
[INFO] [stderr]     Checking rand v0.3.22
[INFO] [stderr]     Checking sdl2 v0.31.0
[INFO] [stderr]     Checking chip8_mary v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::time`
[INFO] [stdout]   --> src/cpu.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |     use std::time;
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `audio::*`
[INFO] [stdout]  --> src/lib.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use audio::*;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `cpu::*`
[INFO] [stdout]  --> src/lib.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use cpu::*;
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::time`
[INFO] [stdout]   --> src/cpu.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |     use std::time;
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `audio::*`
[INFO] [stdout]  --> src/lib.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use audio::*;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `cpu::*`
[INFO] [stdout]  --> src/lib.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use cpu::*;
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `MEMORY_SIZE`
[INFO] [stdout]  --> src/cpu.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     const MEMORY_SIZE: usize = 4096;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `STACK_SIZE`
[INFO] [stdout]  --> src/cpu.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     const STACK_SIZE: usize = 16;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `GFX_SIZE`
[INFO] [stdout]  --> src/cpu.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     const GFX_SIZE: usize = 64 * 32;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `COWGOD_VER`
[INFO] [stdout]   --> src/cpu.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     const COWGOD_VER: u8 = 0;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `MATTMIK_VER`
[INFO] [stdout]   --> src/cpu.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     const MATTMIK_VER: u8 = 1;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Chip`
[INFO] [stdout]   --> src/cpu.rs:17:16
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub struct Chip {
[INFO] [stdout]    |                ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/cpu.rs:53:16
[INFO] [stdout]    |
[INFO] [stdout] 53 |         pub fn new(version: u8) -> Chip {
[INFO] [stdout]    |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `load_program`
[INFO] [stdout]   --> src/cpu.rs:74:16
[INFO] [stdout]    |
[INFO] [stdout] 74 |         pub fn load_program(&mut self, program: &[u8]) {
[INFO] [stdout]    |                ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `cycle`
[INFO] [stdout]   --> src/cpu.rs:86:16
[INFO] [stdout]    |
[INFO] [stdout] 86 |         pub fn cycle(&mut self) {
[INFO] [stdout]    |                ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `give_keypress`
[INFO] [stdout]    --> src/cpu.rs:153:16
[INFO] [stdout]     |
[INFO] [stdout] 153 |         pub fn give_keypress(&mut self, key_pressed: Option<u8>) {
[INFO] [stdout]     |                ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `give_keyrelease`
[INFO] [stdout]    --> src/cpu.rs:167:16
[INFO] [stdout]     |
[INFO] [stdout] 167 |         pub fn give_keyrelease(&mut self, key_pressed: Option<u8>) {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `cls`
[INFO] [stdout]    --> src/cpu.rs:174:16
[INFO] [stdout]     |
[INFO] [stdout] 174 |         pub fn cls(&mut self) {
[INFO] [stdout]     |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `jump`
[INFO] [stdout]    --> src/cpu.rs:181:16
[INFO] [stdout]     |
[INFO] [stdout] 181 |         pub fn jump(&mut self) {
[INFO] [stdout]     |                ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `jump_plus_reg`
[INFO] [stdout]    --> src/cpu.rs:185:16
[INFO] [stdout]     |
[INFO] [stdout] 185 |         pub fn jump_plus_reg(&mut self) {
[INFO] [stdout]     |                ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `gen_random`
[INFO] [stdout]    --> src/cpu.rs:189:16
[INFO] [stdout]     |
[INFO] [stdout] 189 |         pub fn gen_random(&mut self) {
[INFO] [stdout]     |                ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `index_sprite`
[INFO] [stdout]    --> src/cpu.rs:195:16
[INFO] [stdout]     |
[INFO] [stdout] 195 |         pub fn index_sprite(&mut self) {
[INFO] [stdout]     |                ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `should_draw`
[INFO] [stdout]    --> src/cpu.rs:201:16
[INFO] [stdout]     |
[INFO] [stdout] 201 |         pub fn should_draw(&mut self) -> bool {
[INFO] [stdout]     |                ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `should_clear`
[INFO] [stdout]    --> src/cpu.rs:216:16
[INFO] [stdout]     |
[INFO] [stdout] 216 |         pub fn should_clear(&mut self) -> bool {
[INFO] [stdout]     |                ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `call_sub`
[INFO] [stdout]    --> src/cpu.rs:224:16
[INFO] [stdout]     |
[INFO] [stdout] 224 |         pub fn call_sub(&mut self) {
[INFO] [stdout]     |                ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `copy_to_memory`
[INFO] [stdout]    --> src/cpu.rs:230:16
[INFO] [stdout]     |
[INFO] [stdout] 230 |         pub fn copy_to_memory(&mut self) {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `copy_to_registers`
[INFO] [stdout]    --> src/cpu.rs:240:16
[INFO] [stdout]     |
[INFO] [stdout] 240 |         pub fn copy_to_registers(&mut self) {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `equal_to`
[INFO] [stdout]    --> src/cpu.rs:250:16
[INFO] [stdout]     |
[INFO] [stdout] 250 |         pub fn equal_to(&mut self) {
[INFO] [stdout]     |                ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `not_equal_to`
[INFO] [stdout]    --> src/cpu.rs:260:16
[INFO] [stdout]     |
[INFO] [stdout] 260 |         pub fn not_equal_to(&mut self) {
[INFO] [stdout]     |                ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `reg_to_reg`
[INFO] [stdout]    --> src/cpu.rs:270:16
[INFO] [stdout]     |
[INFO] [stdout] 270 |         pub fn reg_to_reg(&mut self) {
[INFO] [stdout]     |                ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `reg_or_reg`
[INFO] [stdout]    --> src/cpu.rs:276:16
[INFO] [stdout]     |
[INFO] [stdout] 276 |         pub fn reg_or_reg(&mut self) {
[INFO] [stdout]     |                ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `reg_and_reg`
[INFO] [stdout]    --> src/cpu.rs:282:16
[INFO] [stdout]     |
[INFO] [stdout] 282 |         pub fn reg_and_reg(&mut self) {
[INFO] [stdout]     |                ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `reg_xor_reg`
[INFO] [stdout]    --> src/cpu.rs:288:16
[INFO] [stdout]     |
[INFO] [stdout] 288 |         pub fn reg_xor_reg(&mut self) {
[INFO] [stdout]     |                ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `reg_minus_reg`
[INFO] [stdout]    --> src/cpu.rs:294:16
[INFO] [stdout]     |
[INFO] [stdout] 294 |         pub fn reg_minus_reg(&mut self) {
[INFO] [stdout]     |                ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `inv_reg_minus_reg`
[INFO] [stdout]    --> src/cpu.rs:308:16
[INFO] [stdout]     |
[INFO] [stdout] 308 |         pub fn inv_reg_minus_reg(&mut self) {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `shift_reg_right`
[INFO] [stdout]    --> src/cpu.rs:324:16
[INFO] [stdout]     |
[INFO] [stdout] 324 |         pub fn shift_reg_right(&mut self) {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `shift_reg_left`
[INFO] [stdout]    --> src/cpu.rs:346:16
[INFO] [stdout]     |
[INFO] [stdout] 346 |         pub fn shift_reg_left(&mut self) {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `reg_not_reg`
[INFO] [stdout]    --> src/cpu.rs:366:16
[INFO] [stdout]     |
[INFO] [stdout] 366 |         pub fn reg_not_reg(&mut self) {
[INFO] [stdout]     |                ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `reg_equals_reg`
[INFO] [stdout]    --> src/cpu.rs:376:16
[INFO] [stdout]     |
[INFO] [stdout] 376 |         pub fn reg_equals_reg(&mut self) {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `assign`
[INFO] [stdout]    --> src/cpu.rs:386:16
[INFO] [stdout]     |
[INFO] [stdout] 386 |         pub fn assign(&mut self) {
[INFO] [stdout]     |                ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `sum_to`
[INFO] [stdout]    --> src/cpu.rs:391:16
[INFO] [stdout]     |
[INFO] [stdout] 391 |         pub fn sum_to(&mut self) {
[INFO] [stdout]     |                ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `sub_return`
[INFO] [stdout]    --> src/cpu.rs:398:16
[INFO] [stdout]     |
[INFO] [stdout] 398 |         pub fn sub_return(&mut self) {
[INFO] [stdout]     |                ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `skip_pressed`
[INFO] [stdout]    --> src/cpu.rs:403:16
[INFO] [stdout]     |
[INFO] [stdout] 403 |         pub fn skip_pressed(&mut self) {
[INFO] [stdout]     |                ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `skip_not_pressed`
[INFO] [stdout]    --> src/cpu.rs:411:16
[INFO] [stdout]     |
[INFO] [stdout] 411 |         pub fn skip_not_pressed(&mut self) {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `store_delay_timer`
[INFO] [stdout]    --> src/cpu.rs:419:16
[INFO] [stdout]     |
[INFO] [stdout] 419 |         pub fn store_delay_timer(&mut self) {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_delay_timer`
[INFO] [stdout]    --> src/cpu.rs:424:16
[INFO] [stdout]     |
[INFO] [stdout] 424 |         pub fn set_delay_timer(&mut self) {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `index_plus_reg`
[INFO] [stdout]    --> src/cpu.rs:429:16
[INFO] [stdout]     |
[INFO] [stdout] 429 |         pub fn index_plus_reg(&mut self) {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_sound_timer`
[INFO] [stdout]    --> src/cpu.rs:435:16
[INFO] [stdout]     |
[INFO] [stdout] 435 |         pub fn set_sound_timer(&mut self) {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `wait_for_key`
[INFO] [stdout]    --> src/cpu.rs:440:16
[INFO] [stdout]     |
[INFO] [stdout] 440 |         pub fn wait_for_key(&mut self) {
[INFO] [stdout]     |                ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `reg_plus_reg`
[INFO] [stdout]    --> src/cpu.rs:444:16
[INFO] [stdout]     |
[INFO] [stdout] 444 |         pub fn reg_plus_reg(&mut self) {
[INFO] [stdout]     |                ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `store_dec`
[INFO] [stdout]    --> src/cpu.rs:458:16
[INFO] [stdout]     |
[INFO] [stdout] 458 |         pub fn store_dec(&mut self) {
[INFO] [stdout]     |                ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `draw_sprite`
[INFO] [stdout]    --> src/cpu.rs:468:16
[INFO] [stdout]     |
[INFO] [stdout] 468 |         pub fn draw_sprite(&mut self) {
[INFO] [stdout]     |                ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `CHIP8_FONTSET`
[INFO] [stdout]    --> src/cpu.rs:499:5
[INFO] [stdout]     |
[INFO] [stdout] 499 | /     const CHIP8_FONTSET: [u8; 80] = [
[INFO] [stdout] 500 | |         0xF0, 0x90, 0x90, 0x90, 0xF0, // 0
[INFO] [stdout] 501 | |         0x20, 0x60, 0x20, 0x20, 0x70, // 1
[INFO] [stdout] 502 | |         0xF0, 0x10, 0xF0, 0x80, 0xF0, // 2
[INFO] [stdout] ...   |
[INFO] [stdout] 515 | |         0xF0, 0x80, 0xF0, 0x80, 0x80, // F
[INFO] [stdout] 516 | |     ];
[INFO] [stdout]     | |______^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 50 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `MEMORY_SIZE`
[INFO] [stdout]  --> src/cpu.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     const MEMORY_SIZE: usize = 4096;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `STACK_SIZE`
[INFO] [stdout]  --> src/cpu.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     const STACK_SIZE: usize = 16;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `GFX_SIZE`
[INFO] [stdout]  --> src/cpu.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     const GFX_SIZE: usize = 64 * 32;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `COWGOD_VER`
[INFO] [stdout]   --> src/cpu.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     const COWGOD_VER: u8 = 0;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `MATTMIK_VER`
[INFO] [stdout]   --> src/cpu.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     const MATTMIK_VER: u8 = 1;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Chip`
[INFO] [stdout]   --> src/cpu.rs:17:16
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub struct Chip {
[INFO] [stdout]    |                ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/cpu.rs:53:16
[INFO] [stdout]    |
[INFO] [stdout] 53 |         pub fn new(version: u8) -> Chip {
[INFO] [stdout]    |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `load_program`
[INFO] [stdout]   --> src/cpu.rs:74:16
[INFO] [stdout]    |
[INFO] [stdout] 74 |         pub fn load_program(&mut self, program: &[u8]) {
[INFO] [stdout]    |                ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `cycle`
[INFO] [stdout]   --> src/cpu.rs:86:16
[INFO] [stdout]    |
[INFO] [stdout] 86 |         pub fn cycle(&mut self) {
[INFO] [stdout]    |                ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `give_keypress`
[INFO] [stdout]    --> src/cpu.rs:153:16
[INFO] [stdout]     |
[INFO] [stdout] 153 |         pub fn give_keypress(&mut self, key_pressed: Option<u8>) {
[INFO] [stdout]     |                ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `give_keyrelease`
[INFO] [stdout]    --> src/cpu.rs:167:16
[INFO] [stdout]     |
[INFO] [stdout] 167 |         pub fn give_keyrelease(&mut self, key_pressed: Option<u8>) {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `cls`
[INFO] [stdout]    --> src/cpu.rs:174:16
[INFO] [stdout]     |
[INFO] [stdout] 174 |         pub fn cls(&mut self) {
[INFO] [stdout]     |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `jump`
[INFO] [stdout]    --> src/cpu.rs:181:16
[INFO] [stdout]     |
[INFO] [stdout] 181 |         pub fn jump(&mut self) {
[INFO] [stdout]     |                ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `jump_plus_reg`
[INFO] [stdout]    --> src/cpu.rs:185:16
[INFO] [stdout]     |
[INFO] [stdout] 185 |         pub fn jump_plus_reg(&mut self) {
[INFO] [stdout]     |                ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `gen_random`
[INFO] [stdout]    --> src/cpu.rs:189:16
[INFO] [stdout]     |
[INFO] [stdout] 189 |         pub fn gen_random(&mut self) {
[INFO] [stdout]     |                ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `index_sprite`
[INFO] [stdout]    --> src/cpu.rs:195:16
[INFO] [stdout]     |
[INFO] [stdout] 195 |         pub fn index_sprite(&mut self) {
[INFO] [stdout]     |                ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `should_draw`
[INFO] [stdout]    --> src/cpu.rs:201:16
[INFO] [stdout]     |
[INFO] [stdout] 201 |         pub fn should_draw(&mut self) -> bool {
[INFO] [stdout]     |                ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `should_clear`
[INFO] [stdout]    --> src/cpu.rs:216:16
[INFO] [stdout]     |
[INFO] [stdout] 216 |         pub fn should_clear(&mut self) -> bool {
[INFO] [stdout]     |                ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `call_sub`
[INFO] [stdout]    --> src/cpu.rs:224:16
[INFO] [stdout]     |
[INFO] [stdout] 224 |         pub fn call_sub(&mut self) {
[INFO] [stdout]     |                ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `copy_to_memory`
[INFO] [stdout]    --> src/cpu.rs:230:16
[INFO] [stdout]     |
[INFO] [stdout] 230 |         pub fn copy_to_memory(&mut self) {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `copy_to_registers`
[INFO] [stdout]    --> src/cpu.rs:240:16
[INFO] [stdout]     |
[INFO] [stdout] 240 |         pub fn copy_to_registers(&mut self) {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `equal_to`
[INFO] [stdout]    --> src/cpu.rs:250:16
[INFO] [stdout]     |
[INFO] [stdout] 250 |         pub fn equal_to(&mut self) {
[INFO] [stdout]     |                ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `not_equal_to`
[INFO] [stdout]    --> src/cpu.rs:260:16
[INFO] [stdout]     |
[INFO] [stdout] 260 |         pub fn not_equal_to(&mut self) {
[INFO] [stdout]     |                ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `reg_to_reg`
[INFO] [stdout]    --> src/cpu.rs:270:16
[INFO] [stdout]     |
[INFO] [stdout] 270 |         pub fn reg_to_reg(&mut self) {
[INFO] [stdout]     |                ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `reg_or_reg`
[INFO] [stdout]    --> src/cpu.rs:276:16
[INFO] [stdout]     |
[INFO] [stdout] 276 |         pub fn reg_or_reg(&mut self) {
[INFO] [stdout]     |                ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `reg_and_reg`
[INFO] [stdout]    --> src/cpu.rs:282:16
[INFO] [stdout]     |
[INFO] [stdout] 282 |         pub fn reg_and_reg(&mut self) {
[INFO] [stdout]     |                ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `reg_xor_reg`
[INFO] [stdout]    --> src/cpu.rs:288:16
[INFO] [stdout]     |
[INFO] [stdout] 288 |         pub fn reg_xor_reg(&mut self) {
[INFO] [stdout]     |                ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `reg_minus_reg`
[INFO] [stdout]    --> src/cpu.rs:294:16
[INFO] [stdout]     |
[INFO] [stdout] 294 |         pub fn reg_minus_reg(&mut self) {
[INFO] [stdout]     |                ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `inv_reg_minus_reg`
[INFO] [stdout]    --> src/cpu.rs:308:16
[INFO] [stdout]     |
[INFO] [stdout] 308 |         pub fn inv_reg_minus_reg(&mut self) {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `shift_reg_right`
[INFO] [stdout]    --> src/cpu.rs:324:16
[INFO] [stdout]     |
[INFO] [stdout] 324 |         pub fn shift_reg_right(&mut self) {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `shift_reg_left`
[INFO] [stdout]    --> src/cpu.rs:346:16
[INFO] [stdout]     |
[INFO] [stdout] 346 |         pub fn shift_reg_left(&mut self) {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `reg_not_reg`
[INFO] [stdout]    --> src/cpu.rs:366:16
[INFO] [stdout]     |
[INFO] [stdout] 366 |         pub fn reg_not_reg(&mut self) {
[INFO] [stdout]     |                ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `reg_equals_reg`
[INFO] [stdout]    --> src/cpu.rs:376:16
[INFO] [stdout]     |
[INFO] [stdout] 376 |         pub fn reg_equals_reg(&mut self) {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `assign`
[INFO] [stdout]    --> src/cpu.rs:386:16
[INFO] [stdout]     |
[INFO] [stdout] 386 |         pub fn assign(&mut self) {
[INFO] [stdout]     |                ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `sum_to`
[INFO] [stdout]    --> src/cpu.rs:391:16
[INFO] [stdout]     |
[INFO] [stdout] 391 |         pub fn sum_to(&mut self) {
[INFO] [stdout]     |                ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `sub_return`
[INFO] [stdout]    --> src/cpu.rs:398:16
[INFO] [stdout]     |
[INFO] [stdout] 398 |         pub fn sub_return(&mut self) {
[INFO] [stdout]     |                ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `skip_pressed`
[INFO] [stdout]    --> src/cpu.rs:403:16
[INFO] [stdout]     |
[INFO] [stdout] 403 |         pub fn skip_pressed(&mut self) {
[INFO] [stdout]     |                ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `skip_not_pressed`
[INFO] [stdout]    --> src/cpu.rs:411:16
[INFO] [stdout]     |
[INFO] [stdout] 411 |         pub fn skip_not_pressed(&mut self) {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `store_delay_timer`
[INFO] [stdout]    --> src/cpu.rs:419:16
[INFO] [stdout]     |
[INFO] [stdout] 419 |         pub fn store_delay_timer(&mut self) {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_delay_timer`
[INFO] [stdout]    --> src/cpu.rs:424:16
[INFO] [stdout]     |
[INFO] [stdout] 424 |         pub fn set_delay_timer(&mut self) {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `index_plus_reg`
[INFO] [stdout]    --> src/cpu.rs:429:16
[INFO] [stdout]     |
[INFO] [stdout] 429 |         pub fn index_plus_reg(&mut self) {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_sound_timer`
[INFO] [stdout]    --> src/cpu.rs:435:16
[INFO] [stdout]     |
[INFO] [stdout] 435 |         pub fn set_sound_timer(&mut self) {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `wait_for_key`
[INFO] [stdout]    --> src/cpu.rs:440:16
[INFO] [stdout]     |
[INFO] [stdout] 440 |         pub fn wait_for_key(&mut self) {
[INFO] [stdout]     |                ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `reg_plus_reg`
[INFO] [stdout]    --> src/cpu.rs:444:16
[INFO] [stdout]     |
[INFO] [stdout] 444 |         pub fn reg_plus_reg(&mut self) {
[INFO] [stdout]     |                ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `store_dec`
[INFO] [stdout]    --> src/cpu.rs:458:16
[INFO] [stdout]     |
[INFO] [stdout] 458 |         pub fn store_dec(&mut self) {
[INFO] [stdout]     |                ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `draw_sprite`
[INFO] [stdout]    --> src/cpu.rs:468:16
[INFO] [stdout]     |
[INFO] [stdout] 468 |         pub fn draw_sprite(&mut self) {
[INFO] [stdout]     |                ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `CHIP8_FONTSET`
[INFO] [stdout]    --> src/cpu.rs:499:5
[INFO] [stdout]     |
[INFO] [stdout] 499 | /     const CHIP8_FONTSET: [u8; 80] = [
[INFO] [stdout] 500 | |         0xF0, 0x90, 0x90, 0x90, 0xF0, // 0
[INFO] [stdout] 501 | |         0x20, 0x60, 0x20, 0x20, 0x70, // 1
[INFO] [stdout] 502 | |         0xF0, 0x10, 0xF0, 0x80, 0xF0, // 2
[INFO] [stdout] ...   |
[INFO] [stdout] 515 | |         0xF0, 0x80, 0xF0, 0x80, 0x80, // F
[INFO] [stdout] 516 | |     ];
[INFO] [stdout]     | |______^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 50 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::time`
[INFO] [stdout]   --> src/cpu.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |     use std::time;
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::time`
[INFO] [stdout]   --> src/cpu.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |     use std::time;
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.32s
[INFO] running `Command { std: "docker" "inspect" "ae87f205b0c6e778f8829a30dc9e110aabf639818845b94b500dfc3a59e76cbd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae87f205b0c6e778f8829a30dc9e110aabf639818845b94b500dfc3a59e76cbd", kill_on_drop: false }`
[INFO] [stdout] ae87f205b0c6e778f8829a30dc9e110aabf639818845b94b500dfc3a59e76cbd
