[INFO] cloning repository https://github.com/mahimahi42/chip8
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mahimahi42/chip8" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmahimahi42%2Fchip8"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmahimahi42%2Fchip8'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 094b1ec56ce474369a81daa3b4654a3b2b4afe3a
[INFO] testing mahimahi42/chip8 against 1.44.0 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmahimahi42%2Fchip8" "/workspace/builds/worker-4/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mahimahi42/chip8 on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/mahimahi42/chip8
[INFO] finished tweaking git repo https://github.com/mahimahi42/chip8
[INFO] tweaked toml for git repo https://github.com/mahimahi42/chip8 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/mahimahi42/chip8 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=warn" "-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" "+1.44.0" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a44b3b11a5cf6b575e232e32b7623a29c1cfc733b9340ef69005a0dd549eaa50
[INFO] running `"docker" "start" "-a" "a44b3b11a5cf6b575e232e32b7623a29c1cfc733b9340ef69005a0dd549eaa50"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling autocfg v0.1.5
[INFO] [stderr]    Compiling bitflags v1.1.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.5
[INFO] [stderr]    Compiling sdl2 v0.32.2
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling c_vec v1.3.3
[INFO] [stderr]    Compiling vec_map v0.8.1
[INFO] [stderr]    Compiling fps_clock v2.0.0
[INFO] [stderr]    Compiling sdl2-sys v0.32.6
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling getrandom v0.1.7
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling atty v0.2.13
[INFO] [stderr]    Compiling rand_core v0.5.0
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling c2-chacha v0.2.2
[INFO] [stderr]    Compiling rand_chacha v0.2.1
[INFO] [stderr]    Compiling rand v0.7.0
[INFO] [stderr]    Compiling num v0.1.42
[INFO] [stderr]    Compiling chip8 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused imports: `Rng`, `SeedableRng`
[INFO] [stderr]  --> src/cpu/cpu.rs:6:12
[INFO] [stderr]   |
[INFO] [stderr] 6 | use rand::{SeedableRng, RngCore, Rng};
[INFO] [stderr]   |            ^^^^^^^^^^^           ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `sdl2::EventPump`
[INFO] [stderr]  --> src/display/display.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use sdl2::EventPump;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Chip8Audio`
[INFO] [stderr]  --> src/audio/audio.rs:3:12
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub struct Chip8Audio {
[INFO] [stderr]   |            ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]  --> src/audio/audio.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     pub fn new(sdl: &sdl2::Sdl) -> Self {
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `play`
[INFO] [stderr]   --> src/audio/audio.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 30 |     pub fn play(&self) { self.device.resume(); }
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `stop`
[INFO] [stderr]   --> src/audio/audio.rs:31:5
[INFO] [stderr]    |
[INFO] [stderr] 31 |     pub fn stop(&self) { self.device.pause(); }
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `RAM`
[INFO] [stderr]  --> src/cpu/cpu.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | const RAM: usize = 4096;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `HEIGHT`
[INFO] [stderr]   --> src/cpu/cpu.rs:10:1
[INFO] [stderr]    |
[INFO] [stderr] 10 | const HEIGHT: usize = 32;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `WIDTH`
[INFO] [stderr]   --> src/cpu/cpu.rs:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | const WIDTH: usize = 64;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `PROG_START`
[INFO] [stderr]   --> src/cpu/cpu.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | const PROG_START: usize = 0x200;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `FONT`
[INFO] [stderr]   --> src/cpu/cpu.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | / const FONT: [u8; 80] = [
[INFO] [stderr] 14 | |     0xF0, 0x90, 0x90, 0x90, 0xF0,
[INFO] [stderr] 15 | |     0x20, 0x60, 0x20, 0x20, 0x70,
[INFO] [stderr] 16 | |     0xF0, 0x10, 0xF0, 0x80, 0xF0,
[INFO] [stderr] ...  |
[INFO] [stderr] 29 | |     0xF0, 0x80, 0xF0, 0x80, 0x80,
[INFO] [stderr] 30 | | ];
[INFO] [stderr]    | |__^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Chip8Cpu`
[INFO] [stderr]   --> src/cpu/cpu.rs:88:12
[INFO] [stderr]    |
[INFO] [stderr] 88 | pub struct Chip8Cpu {
[INFO] [stderr]    |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]    --> src/cpu/cpu.rs:103:5
[INFO] [stderr]     |
[INFO] [stderr] 103 |     pub fn new() -> Self {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `load_rom`
[INFO] [stderr]    --> src/cpu/cpu.rs:124:5
[INFO] [stderr]     |
[INFO] [stderr] 124 |     pub fn load_rom(&mut self, path: &str) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `read_rom`
[INFO] [stderr]    --> src/cpu/cpu.rs:138:5
[INFO] [stderr]     |
[INFO] [stderr] 138 |     fn read_rom(&self, path: &str) -> Result<Vec<u8>> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `fetch_opcode`
[INFO] [stderr]    --> src/cpu/cpu.rs:147:5
[INFO] [stderr]     |
[INFO] [stderr] 147 |     fn fetch_opcode(&self) -> Opcode {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `tick`
[INFO] [stderr]    --> src/cpu/cpu.rs:151:5
[INFO] [stderr]     |
[INFO] [stderr] 151 |     pub fn tick(&mut self, input: [bool; 16]) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `decode_opcode`
[INFO] [stderr]    --> src/cpu/cpu.rs:163:5
[INFO] [stderr]     |
[INFO] [stderr] 163 |     fn decode_opcode(&mut self, op: Opcode, input: [bool; 16]) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `cls_00E0`
[INFO] [stderr]    --> src/cpu/cpu.rs:207:5
[INFO] [stderr]     |
[INFO] [stderr] 207 |     fn cls_00E0(&mut self) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `ret_00EE`
[INFO] [stderr]    --> src/cpu/cpu.rs:217:5
[INFO] [stderr]     |
[INFO] [stderr] 217 |     fn ret_00EE(&mut self) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `jp_addr_1nnn`
[INFO] [stderr]    --> src/cpu/cpu.rs:222:5
[INFO] [stderr]     |
[INFO] [stderr] 222 |     fn jp_addr_1nnn(&mut self, op: Opcode) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `call_addr_2nnn`
[INFO] [stderr]    --> src/cpu/cpu.rs:226:5
[INFO] [stderr]     |
[INFO] [stderr] 226 |     fn call_addr_2nnn(&mut self, op: Opcode) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `se_vx_kk_3xkk`
[INFO] [stderr]    --> src/cpu/cpu.rs:232:5
[INFO] [stderr]     |
[INFO] [stderr] 232 |     fn se_vx_kk_3xkk(&mut self, op: Opcode) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `sne_vx_kk_4xkk`
[INFO] [stderr]    --> src/cpu/cpu.rs:236:5
[INFO] [stderr]     |
[INFO] [stderr] 236 |     fn sne_vx_kk_4xkk(&mut self, op: Opcode) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `se_vx_vy_5xy0`
[INFO] [stderr]    --> src/cpu/cpu.rs:240:5
[INFO] [stderr]     |
[INFO] [stderr] 240 |     fn se_vx_vy_5xy0(&mut self, op: Opcode) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `ld_vx_kk_6xkk`
[INFO] [stderr]    --> src/cpu/cpu.rs:244:5
[INFO] [stderr]     |
[INFO] [stderr] 244 |     fn ld_vx_kk_6xkk(&mut self, op: Opcode) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `add_vx_kk_7xkk`
[INFO] [stderr]    --> src/cpu/cpu.rs:249:5
[INFO] [stderr]     |
[INFO] [stderr] 249 |     fn add_vx_kk_7xkk(&mut self, op: Opcode) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `ld_vx_vy_8xy0`
[INFO] [stderr]    --> src/cpu/cpu.rs:255:5
[INFO] [stderr]     |
[INFO] [stderr] 255 |     fn ld_vx_vy_8xy0(&mut self, op: Opcode) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `or_vx_vy_8xy1`
[INFO] [stderr]    --> src/cpu/cpu.rs:260:5
[INFO] [stderr]     |
[INFO] [stderr] 260 |     fn or_vx_vy_8xy1(&mut self, op: Opcode) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `and_vx_vy_8xy2`
[INFO] [stderr]    --> src/cpu/cpu.rs:265:5
[INFO] [stderr]     |
[INFO] [stderr] 265 |     fn and_vx_vy_8xy2(&mut self, op: Opcode) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `xor_vx_vy_8xy3`
[INFO] [stderr]    --> src/cpu/cpu.rs:270:5
[INFO] [stderr]     |
[INFO] [stderr] 270 |     fn xor_vx_vy_8xy3(&mut self, op: Opcode) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `add_vx_vy_8xy4`
[INFO] [stderr]    --> src/cpu/cpu.rs:275:5
[INFO] [stderr]     |
[INFO] [stderr] 275 |     fn add_vx_vy_8xy4(&mut self, op: Opcode) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `sub_vx_vy_8xy5`
[INFO] [stderr]    --> src/cpu/cpu.rs:282:5
[INFO] [stderr]     |
[INFO] [stderr] 282 |     fn sub_vx_vy_8xy5(&mut self, op: Opcode) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `shr_vx_8xy6`
[INFO] [stderr]    --> src/cpu/cpu.rs:289:5
[INFO] [stderr]     |
[INFO] [stderr] 289 |     fn shr_vx_8xy6(&mut self, op: Opcode) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `subn_vx_vy_8xy7`
[INFO] [stderr]    --> src/cpu/cpu.rs:295:5
[INFO] [stderr]     |
[INFO] [stderr] 295 |     fn subn_vx_vy_8xy7(&mut self, op: Opcode) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `shl_vx_8xyE`
[INFO] [stderr]    --> src/cpu/cpu.rs:302:5
[INFO] [stderr]     |
[INFO] [stderr] 302 |     fn shl_vx_8xyE(&mut self, op: Opcode) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `sne_vx_vy_9xy0`
[INFO] [stderr]    --> src/cpu/cpu.rs:308:5
[INFO] [stderr]     |
[INFO] [stderr] 308 |     fn sne_vx_vy_9xy0(&mut self, op: Opcode) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `ld_i_addr_Annn`
[INFO] [stderr]    --> src/cpu/cpu.rs:312:5
[INFO] [stderr]     |
[INFO] [stderr] 312 |     fn ld_i_addr_Annn(&mut self, op: Opcode) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `jp_v0_addr_Bnnn`
[INFO] [stderr]    --> src/cpu/cpu.rs:317:5
[INFO] [stderr]     |
[INFO] [stderr] 317 |     fn jp_v0_addr_Bnnn(&mut self, op: Opcode) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `rnd_vx_kk_Cxkk`
[INFO] [stderr]    --> src/cpu/cpu.rs:321:5
[INFO] [stderr]     |
[INFO] [stderr] 321 |     fn rnd_vx_kk_Cxkk(&mut self, op: Opcode) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `drw_vx_vy_n_Dxyn`
[INFO] [stderr]    --> src/cpu/cpu.rs:328:5
[INFO] [stderr]     |
[INFO] [stderr] 328 |     fn drw_vx_vy_n_Dxyn(&mut self, op: Opcode) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `skp_vx_Ex9E`
[INFO] [stderr]    --> src/cpu/cpu.rs:343:5
[INFO] [stderr]     |
[INFO] [stderr] 343 |     fn skp_vx_Ex9E(&mut self, op: Opcode, input: [bool; 16]) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `sknp_vx_ExA1`
[INFO] [stderr]    --> src/cpu/cpu.rs:352:5
[INFO] [stderr]     |
[INFO] [stderr] 352 |     fn sknp_vx_ExA1(&mut self, op: Opcode, input: [bool; 16]) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `ld_vx_dt_Fx07`
[INFO] [stderr]    --> src/cpu/cpu.rs:361:5
[INFO] [stderr]     |
[INFO] [stderr] 361 |     fn ld_vx_dt_Fx07(&mut self, op: Opcode) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `ld_vx_k_Fx0A`
[INFO] [stderr]    --> src/cpu/cpu.rs:366:5
[INFO] [stderr]     |
[INFO] [stderr] 366 |     fn ld_vx_k_Fx0A(&mut self, op: Opcode, input: [bool; 16]) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `ld_dt_vx_Fx15`
[INFO] [stderr]    --> src/cpu/cpu.rs:375:5
[INFO] [stderr]     |
[INFO] [stderr] 375 |     fn ld_dt_vx_Fx15(&mut self, op: Opcode) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `ld_st_vx_Fx18`
[INFO] [stderr]    --> src/cpu/cpu.rs:380:5
[INFO] [stderr]     |
[INFO] [stderr] 380 |     fn ld_st_vx_Fx18(&mut self, op: Opcode) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `add_i_vx_Fx1E`
[INFO] [stderr]    --> src/cpu/cpu.rs:385:5
[INFO] [stderr]     |
[INFO] [stderr] 385 |     fn add_i_vx_Fx1E(&mut self, op: Opcode) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `ld_f_vx_Fx29`
[INFO] [stderr]    --> src/cpu/cpu.rs:391:5
[INFO] [stderr]     |
[INFO] [stderr] 391 |     fn ld_f_vx_Fx29(&mut self, op: Opcode) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `ld_b_vx_Fx33`
[INFO] [stderr]    --> src/cpu/cpu.rs:396:5
[INFO] [stderr]     |
[INFO] [stderr] 396 |     fn ld_b_vx_Fx33(&mut self, op: Opcode) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `ld_i_vx_Fx55`
[INFO] [stderr]    --> src/cpu/cpu.rs:403:5
[INFO] [stderr]     |
[INFO] [stderr] 403 |     fn ld_i_vx_Fx55(&mut self, op: Opcode) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `ld_vx_i_Fx65`
[INFO] [stderr]    --> src/cpu/cpu.rs:410:5
[INFO] [stderr]     |
[INFO] [stderr] 410 |     fn ld_vx_i_Fx65(&mut self, op: Opcode) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `SCALE`
[INFO] [stderr]  --> src/display/display.rs:8:1
[INFO] [stderr]   |
[INFO] [stderr] 8 | const SCALE: u32 = 10;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `HEIGHT`
[INFO] [stderr]  --> src/display/display.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | const HEIGHT: u32 = 32;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `WIDTH`
[INFO] [stderr]   --> src/display/display.rs:10:1
[INFO] [stderr]    |
[INFO] [stderr] 10 | const WIDTH: u32 = 64;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `SCREEN_HEIGHT`
[INFO] [stderr]   --> src/display/display.rs:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | const SCREEN_HEIGHT: u32 = SCALE * HEIGHT;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `SCREEN_WIDTH`
[INFO] [stderr]   --> src/display/display.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | const SCREEN_WIDTH: u32 = SCALE * WIDTH;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Chip8Display`
[INFO] [stderr]   --> src/display/display.rs:14:12
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub struct Chip8Display {
[INFO] [stderr]    |            ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/display/display.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 |     pub fn new(sdl: &sdl2::Sdl) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `draw`
[INFO] [stderr]   --> src/display/display.rs:37:5
[INFO] [stderr]    |
[INFO] [stderr] 37 |     pub fn draw(&mut self, vram: &[[u8; WIDTH as usize]; HEIGHT as usize]) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `pix_color`
[INFO] [stderr]   --> src/display/display.rs:50:5
[INFO] [stderr]    |
[INFO] [stderr] 50 |     fn pix_color(pix: u8) -> pixels::Color {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Chip8Input`
[INFO] [stderr]  --> src/input/input.rs:3:12
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub struct Chip8Input {
[INFO] [stderr]   |            ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]  --> src/input/input.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     pub fn new(sdl: &sdl2::Sdl) -> Self {
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `poll`
[INFO] [stderr]   --> src/input/input.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     pub fn poll(&self) -> [bool; 16] {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `cls_00E0` should have a snake case name
[INFO] [stderr]    --> src/cpu/cpu.rs:207:8
[INFO] [stderr]     |
[INFO] [stderr] 207 |     fn cls_00E0(&mut self) {
[INFO] [stderr]     |        ^^^^^^^^ help: convert the identifier to snake case: `cls_00_e0`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method `ret_00EE` should have a snake case name
[INFO] [stderr]    --> src/cpu/cpu.rs:217:8
[INFO] [stderr]     |
[INFO] [stderr] 217 |     fn ret_00EE(&mut self) {
[INFO] [stderr]     |        ^^^^^^^^ help: convert the identifier to snake case: `ret_00_ee`
[INFO] [stderr] 
[INFO] [stderr] warning: method `shl_vx_8xyE` should have a snake case name
[INFO] [stderr]    --> src/cpu/cpu.rs:302:8
[INFO] [stderr]     |
[INFO] [stderr] 302 |     fn shl_vx_8xyE(&mut self, op: Opcode) {
[INFO] [stderr]     |        ^^^^^^^^^^^ help: convert the identifier to snake case: `shl_vx_8xy_e`
[INFO] [stderr] 
[INFO] [stderr] warning: method `ld_i_addr_Annn` should have a snake case name
[INFO] [stderr]    --> src/cpu/cpu.rs:312:8
[INFO] [stderr]     |
[INFO] [stderr] 312 |     fn ld_i_addr_Annn(&mut self, op: Opcode) {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^ help: convert the identifier to snake case: `ld_i_addr_annn`
[INFO] [stderr] 
[INFO] [stderr] warning: method `jp_v0_addr_Bnnn` should have a snake case name
[INFO] [stderr]    --> src/cpu/cpu.rs:317:8
[INFO] [stderr]     |
[INFO] [stderr] 317 |     fn jp_v0_addr_Bnnn(&mut self, op: Opcode) {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `jp_v0_addr_bnnn`
[INFO] [stderr] 
[INFO] [stderr] warning: method `rnd_vx_kk_Cxkk` should have a snake case name
[INFO] [stderr]    --> src/cpu/cpu.rs:321:8
[INFO] [stderr]     |
[INFO] [stderr] 321 |     fn rnd_vx_kk_Cxkk(&mut self, op: Opcode) {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `rnd_vx_kk_cxkk`
[INFO] [stderr] 
[INFO] [stderr] warning: method `drw_vx_vy_n_Dxyn` should have a snake case name
[INFO] [stderr]    --> src/cpu/cpu.rs:328:8
[INFO] [stderr]     |
[INFO] [stderr] 328 |     fn drw_vx_vy_n_Dxyn(&mut self, op: Opcode) {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `drw_vx_vy_n_dxyn`
[INFO] [stderr] 
[INFO] [stderr] warning: method `skp_vx_Ex9E` should have a snake case name
[INFO] [stderr]    --> src/cpu/cpu.rs:343:8
[INFO] [stderr]     |
[INFO] [stderr] 343 |     fn skp_vx_Ex9E(&mut self, op: Opcode, input: [bool; 16]) {
[INFO] [stderr]     |        ^^^^^^^^^^^ help: convert the identifier to snake case: `skp_vx_ex9_e`
[INFO] [stderr] 
[INFO] [stderr] warning: method `sknp_vx_ExA1` should have a snake case name
[INFO] [stderr]    --> src/cpu/cpu.rs:352:8
[INFO] [stderr]     |
[INFO] [stderr] 352 |     fn sknp_vx_ExA1(&mut self, op: Opcode, input: [bool; 16]) {
[INFO] [stderr]     |        ^^^^^^^^^^^^ help: convert the identifier to snake case: `sknp_vx_ex_a1`
[INFO] [stderr] 
[INFO] [stderr] warning: method `ld_vx_dt_Fx07` should have a snake case name
[INFO] [stderr]    --> src/cpu/cpu.rs:361:8
[INFO] [stderr]     |
[INFO] [stderr] 361 |     fn ld_vx_dt_Fx07(&mut self, op: Opcode) {
[INFO] [stderr]     |        ^^^^^^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `ld_vx_dt_fx07`
[INFO] [stderr] 
[INFO] [stderr] warning: method `ld_vx_k_Fx0A` should have a snake case name
[INFO] [stderr]    --> src/cpu/cpu.rs:366:8
[INFO] [stderr]     |
[INFO] [stderr] 366 |     fn ld_vx_k_Fx0A(&mut self, op: Opcode, input: [bool; 16]) {
[INFO] [stderr]     |        ^^^^^^^^^^^^ help: convert the identifier to snake case: `ld_vx_k_fx0_a`
[INFO] [stderr] 
[INFO] [stderr] warning: method `ld_dt_vx_Fx15` should have a snake case name
[INFO] [stderr]    --> src/cpu/cpu.rs:375:8
[INFO] [stderr]     |
[INFO] [stderr] 375 |     fn ld_dt_vx_Fx15(&mut self, op: Opcode) {
[INFO] [stderr]     |        ^^^^^^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `ld_dt_vx_fx15`
[INFO] [stderr] 
[INFO] [stderr] warning: method `ld_st_vx_Fx18` should have a snake case name
[INFO] [stderr]    --> src/cpu/cpu.rs:380:8
[INFO] [stderr]     |
[INFO] [stderr] 380 |     fn ld_st_vx_Fx18(&mut self, op: Opcode) {
[INFO] [stderr]     |        ^^^^^^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `ld_st_vx_fx18`
[INFO] [stderr] 
[INFO] [stderr] warning: method `add_i_vx_Fx1E` should have a snake case name
[INFO] [stderr]    --> src/cpu/cpu.rs:385:8
[INFO] [stderr]     |
[INFO] [stderr] 385 |     fn add_i_vx_Fx1E(&mut self, op: Opcode) {
[INFO] [stderr]     |        ^^^^^^^^^^^^^ help: convert the identifier to snake case: `add_i_vx_fx1_e`
[INFO] [stderr] 
[INFO] [stderr] warning: method `ld_f_vx_Fx29` should have a snake case name
[INFO] [stderr]    --> src/cpu/cpu.rs:391:8
[INFO] [stderr]     |
[INFO] [stderr] 391 |     fn ld_f_vx_Fx29(&mut self, op: Opcode) {
[INFO] [stderr]     |        ^^^^^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `ld_f_vx_fx29`
[INFO] [stderr] 
[INFO] [stderr] warning: method `ld_b_vx_Fx33` should have a snake case name
[INFO] [stderr]    --> src/cpu/cpu.rs:396:8
[INFO] [stderr]     |
[INFO] [stderr] 396 |     fn ld_b_vx_Fx33(&mut self, op: Opcode) {
[INFO] [stderr]     |        ^^^^^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `ld_b_vx_fx33`
[INFO] [stderr] 
[INFO] [stderr] warning: method `ld_i_vx_Fx55` should have a snake case name
[INFO] [stderr]    --> src/cpu/cpu.rs:403:8
[INFO] [stderr]     |
[INFO] [stderr] 403 |     fn ld_i_vx_Fx55(&mut self, op: Opcode) {
[INFO] [stderr]     |        ^^^^^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `ld_i_vx_fx55`
[INFO] [stderr] 
[INFO] [stderr] warning: method `ld_vx_i_Fx65` should have a snake case name
[INFO] [stderr]    --> src/cpu/cpu.rs:410:8
[INFO] [stderr]     |
[INFO] [stderr] 410 |     fn ld_vx_i_Fx65(&mut self, op: Opcode) {
[INFO] [stderr]     |        ^^^^^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `ld_vx_i_fx65`
[INFO] [stderr] 
[INFO] [stderr] warning: 82 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Rng`, `SeedableRng`
[INFO] [stderr]  --> src/cpu/cpu.rs:6:12
[INFO] [stderr]   |
[INFO] [stderr] 6 | use rand::{SeedableRng, RngCore, Rng};
[INFO] [stderr]   |            ^^^^^^^^^^^           ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `sdl2::EventPump`
[INFO] [stderr]  --> src/display/display.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use sdl2::EventPump;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `cls_00E0` should have a snake case name
[INFO] [stderr]    --> src/cpu/cpu.rs:207:8
[INFO] [stderr]     |
[INFO] [stderr] 207 |     fn cls_00E0(&mut self) {
[INFO] [stderr]     |        ^^^^^^^^ help: convert the identifier to snake case: `cls_00_e0`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method `ret_00EE` should have a snake case name
[INFO] [stderr]    --> src/cpu/cpu.rs:217:8
[INFO] [stderr]     |
[INFO] [stderr] 217 |     fn ret_00EE(&mut self) {
[INFO] [stderr]     |        ^^^^^^^^ help: convert the identifier to snake case: `ret_00_ee`
[INFO] [stderr] 
[INFO] [stderr] warning: method `shl_vx_8xyE` should have a snake case name
[INFO] [stderr]    --> src/cpu/cpu.rs:302:8
[INFO] [stderr]     |
[INFO] [stderr] 302 |     fn shl_vx_8xyE(&mut self, op: Opcode) {
[INFO] [stderr]     |        ^^^^^^^^^^^ help: convert the identifier to snake case: `shl_vx_8xy_e`
[INFO] [stderr] 
[INFO] [stderr] warning: method `ld_i_addr_Annn` should have a snake case name
[INFO] [stderr]    --> src/cpu/cpu.rs:312:8
[INFO] [stderr]     |
[INFO] [stderr] 312 |     fn ld_i_addr_Annn(&mut self, op: Opcode) {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^ help: convert the identifier to snake case: `ld_i_addr_annn`
[INFO] [stderr] 
[INFO] [stderr] warning: method `jp_v0_addr_Bnnn` should have a snake case name
[INFO] [stderr]    --> src/cpu/cpu.rs:317:8
[INFO] [stderr]     |
[INFO] [stderr] 317 |     fn jp_v0_addr_Bnnn(&mut self, op: Opcode) {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `jp_v0_addr_bnnn`
[INFO] [stderr] 
[INFO] [stderr] warning: method `rnd_vx_kk_Cxkk` should have a snake case name
[INFO] [stderr]    --> src/cpu/cpu.rs:321:8
[INFO] [stderr]     |
[INFO] [stderr] 321 |     fn rnd_vx_kk_Cxkk(&mut self, op: Opcode) {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `rnd_vx_kk_cxkk`
[INFO] [stderr] 
[INFO] [stderr] warning: method `drw_vx_vy_n_Dxyn` should have a snake case name
[INFO] [stderr]    --> src/cpu/cpu.rs:328:8
[INFO] [stderr]     |
[INFO] [stderr] 328 |     fn drw_vx_vy_n_Dxyn(&mut self, op: Opcode) {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `drw_vx_vy_n_dxyn`
[INFO] [stderr] 
[INFO] [stderr] warning: method `skp_vx_Ex9E` should have a snake case name
[INFO] [stderr]    --> src/cpu/cpu.rs:343:8
[INFO] [stderr]     |
[INFO] [stderr] 343 |     fn skp_vx_Ex9E(&mut self, op: Opcode, input: [bool; 16]) {
[INFO] [stderr]     |        ^^^^^^^^^^^ help: convert the identifier to snake case: `skp_vx_ex9_e`
[INFO] [stderr] 
[INFO] [stderr] warning: method `sknp_vx_ExA1` should have a snake case name
[INFO] [stderr]    --> src/cpu/cpu.rs:352:8
[INFO] [stderr]     |
[INFO] [stderr] 352 |     fn sknp_vx_ExA1(&mut self, op: Opcode, input: [bool; 16]) {
[INFO] [stderr]     |        ^^^^^^^^^^^^ help: convert the identifier to snake case: `sknp_vx_ex_a1`
[INFO] [stderr] 
[INFO] [stderr] warning: method `ld_vx_dt_Fx07` should have a snake case name
[INFO] [stderr]    --> src/cpu/cpu.rs:361:8
[INFO] [stderr]     |
[INFO] [stderr] 361 |     fn ld_vx_dt_Fx07(&mut self, op: Opcode) {
[INFO] [stderr]     |        ^^^^^^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `ld_vx_dt_fx07`
[INFO] [stderr] 
[INFO] [stderr] warning: method `ld_vx_k_Fx0A` should have a snake case name
[INFO] [stderr]    --> src/cpu/cpu.rs:366:8
[INFO] [stderr]     |
[INFO] [stderr] 366 |     fn ld_vx_k_Fx0A(&mut self, op: Opcode, input: [bool; 16]) {
[INFO] [stderr]     |        ^^^^^^^^^^^^ help: convert the identifier to snake case: `ld_vx_k_fx0_a`
[INFO] [stderr] 
[INFO] [stderr] warning: method `ld_dt_vx_Fx15` should have a snake case name
[INFO] [stderr]    --> src/cpu/cpu.rs:375:8
[INFO] [stderr]     |
[INFO] [stderr] 375 |     fn ld_dt_vx_Fx15(&mut self, op: Opcode) {
[INFO] [stderr]     |        ^^^^^^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `ld_dt_vx_fx15`
[INFO] [stderr] 
[INFO] [stderr] warning: method `ld_st_vx_Fx18` should have a snake case name
[INFO] [stderr]    --> src/cpu/cpu.rs:380:8
[INFO] [stderr]     |
[INFO] [stderr] 380 |     fn ld_st_vx_Fx18(&mut self, op: Opcode) {
[INFO] [stderr]     |        ^^^^^^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `ld_st_vx_fx18`
[INFO] [stderr] 
[INFO] [stderr] warning: method `add_i_vx_Fx1E` should have a snake case name
[INFO] [stderr]    --> src/cpu/cpu.rs:385:8
[INFO] [stderr]     |
[INFO] [stderr] 385 |     fn add_i_vx_Fx1E(&mut self, op: Opcode) {
[INFO] [stderr]     |        ^^^^^^^^^^^^^ help: convert the identifier to snake case: `add_i_vx_fx1_e`
[INFO] [stderr] 
[INFO] [stderr] warning: method `ld_f_vx_Fx29` should have a snake case name
[INFO] [stderr]    --> src/cpu/cpu.rs:391:8
[INFO] [stderr]     |
[INFO] [stderr] 391 |     fn ld_f_vx_Fx29(&mut self, op: Opcode) {
[INFO] [stderr]     |        ^^^^^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `ld_f_vx_fx29`
[INFO] [stderr] 
[INFO] [stderr] warning: method `ld_b_vx_Fx33` should have a snake case name
[INFO] [stderr]    --> src/cpu/cpu.rs:396:8
[INFO] [stderr]     |
[INFO] [stderr] 396 |     fn ld_b_vx_Fx33(&mut self, op: Opcode) {
[INFO] [stderr]     |        ^^^^^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `ld_b_vx_fx33`
[INFO] [stderr] 
[INFO] [stderr] warning: method `ld_i_vx_Fx55` should have a snake case name
[INFO] [stderr]    --> src/cpu/cpu.rs:403:8
[INFO] [stderr]     |
[INFO] [stderr] 403 |     fn ld_i_vx_Fx55(&mut self, op: Opcode) {
[INFO] [stderr]     |        ^^^^^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `ld_i_vx_fx55`
[INFO] [stderr] 
[INFO] [stderr] warning: method `ld_vx_i_Fx65` should have a snake case name
[INFO] [stderr]    --> src/cpu/cpu.rs:410:8
[INFO] [stderr]     |
[INFO] [stderr] 410 |     fn ld_vx_i_Fx65(&mut self, op: Opcode) {
[INFO] [stderr]     |        ^^^^^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `ld_vx_i_fx65`
[INFO] [stderr] 
[INFO] [stderr] error: linking with `cc` failed: exit code: 1
[INFO] [stderr]   |
[INFO] [stderr]   = note: "cc" "-Wl,--as-needed" "-Wl,-z,noexecstack" "-m64" "-L" "/opt/rustwide/rustup-home/toolchains/1.44.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/rustwide/target/debug/deps/chip8-04a3fe9ccb829b52.chip8.ad1sbdug-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/chip8-04a3fe9ccb829b52.chip8.ad1sbdug-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/chip8-04a3fe9ccb829b52.chip8.ad1sbdug-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/chip8-04a3fe9ccb829b52.chip8.ad1sbdug-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/chip8-04a3fe9ccb829b52.chip8.ad1sbdug-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/chip8-04a3fe9ccb829b52.chip8.ad1sbdug-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/chip8-04a3fe9ccb829b52.chip8.ad1sbdug-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/chip8-04a3fe9ccb829b52.chip8.ad1sbdug-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/chip8-04a3fe9ccb829b52.chip8.ad1sbdug-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/chip8-04a3fe9ccb829b52.chip8.ad1sbdug-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/chip8-04a3fe9ccb829b52.chip8.ad1sbdug-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/chip8-04a3fe9ccb829b52.chip8.ad1sbdug-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/chip8-04a3fe9ccb829b52.chip8.ad1sbdug-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/chip8-04a3fe9ccb829b52.chip8.ad1sbdug-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/chip8-04a3fe9ccb829b52.chip8.ad1sbdug-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/chip8-04a3fe9ccb829b52.chip8.ad1sbdug-cgu.9.rcgu.o" "-o" "/opt/rustwide/target/debug/deps/chip8-04a3fe9ccb829b52" "/opt/rustwide/target/debug/deps/chip8-04a3fe9ccb829b52.1irptc6ljmuurdk.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/rustup-home/toolchains/1.44.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/libsdl2-389cf87387ff5009.rlib" "/opt/rustwide/target/debug/deps/librand-358ecd69d2a0f18f.rlib" "/opt/rustwide/target/debug/deps/librand_xorshift-f09d120b1e8302ce.rlib" "/opt/rustwide/target/debug/deps/librand_pcg-ac383b92adf960cc.rlib" "/opt/rustwide/target/debug/deps/librand_hc-1ed774b1b0cc13a9.rlib" "/opt/rustwide/target/debug/deps/librand_chacha-31ce371699c8b3e2.rlib" "/opt/rustwide/target/debug/deps/librand_isaac-9e0c665f67464740.rlib" "/opt/rustwide/target/debug/deps/librand_core-e1f807daa840ecfb.rlib" "/opt/rustwide/target/debug/deps/librand_os-157060d7ac7dd718.rlib" "/opt/rustwide/target/debug/deps/librand_jitter-cfb0a3bcbd66008e.rlib" "/opt/rustwide/target/debug/deps/librand_core-3765e1a61bc3f75e.rlib" "/opt/rustwide/target/debug/deps/libc_vec-857c2d5c598a7539.rlib" "/opt/rustwide/target/debug/deps/libsdl2_sys-4737188da96209a5.rlib" "/opt/rustwide/target/debug/deps/libnum-172ef87164bf4040.rlib" "/opt/rustwide/target/debug/deps/libnum_iter-0b5238cf27c2b3d8.rlib" "/opt/rustwide/target/debug/deps/libnum_integer-8a9bdc468d40e705.rlib" "/opt/rustwide/target/debug/deps/libnum_traits-644abff0d459e604.rlib" "/opt/rustwide/target/debug/deps/librand_pcg-32add548f71ced24.rlib" "/opt/rustwide/target/debug/deps/librand-73fd83ca42935105.rlib" "/opt/rustwide/target/debug/deps/librand_chacha-da7f89098666b206.rlib" "/opt/rustwide/target/debug/deps/libc2_chacha-2a2e3dddbc97e93d.rlib" "/opt/rustwide/target/debug/deps/libppv_lite86-7a7a95765fa55576.rlib" "/opt/rustwide/target/debug/deps/liblazy_static-c207312554410787.rlib" "/opt/rustwide/target/debug/deps/librand_core-93d4edf13ad64d57.rlib" "/opt/rustwide/target/debug/deps/libgetrandom-41389a311c6d58e9.rlib" "/opt/rustwide/target/debug/deps/libcfg_if-c9325044fa92f8a5.rlib" "/opt/rustwide/target/debug/deps/libfps_clock-dee414ca399fa019.rlib" "/opt/rustwide/target/debug/deps/libclap-8587061a11c26118.rlib" "/opt/rustwide/target/debug/deps/libvec_map-0a3b3bea3eacf388.rlib" "/opt/rustwide/target/debug/deps/libtextwrap-ca2b47ed77503e08.rlib" "/opt/rustwide/target/debug/deps/libunicode_width-c2f347f060a1ea6c.rlib" "/opt/rustwide/target/debug/deps/libstrsim-973ca7e6efba7d91.rlib" "/opt/rustwide/target/debug/deps/libbitflags-bae0fd3e41703743.rlib" "/opt/rustwide/target/debug/deps/libatty-08d193eb6aacaffe.rlib" "/opt/rustwide/target/debug/deps/liblibc-a5dfdc1cbcac6f0c.rlib" "/opt/rustwide/target/debug/deps/libansi_term-bf3fbdd21e4a8c77.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/1.44.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-205127404fcba336.rlib" "/opt/rustwide/rustup-home/toolchains/1.44.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-a657948fb7763780.rlib" "/opt/rustwide/rustup-home/toolchains/1.44.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-4af901391177f653.rlib" "/opt/rustwide/rustup-home/toolchains/1.44.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-9bdd51edf637d1e0.rlib" "/opt/rustwide/rustup-home/toolchains/1.44.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace-df9a9630b2ea2e1e.rlib" "/opt/rustwide/rustup-home/toolchains/1.44.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace_sys-fddbfe63d5cc9339.rlib" "/opt/rustwide/rustup-home/toolchains/1.44.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-dc1fcc6e43806791.rlib" "/opt/rustwide/rustup-home/toolchains/1.44.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-e2f4bff19e00107e.rlib" "/opt/rustwide/rustup-home/toolchains/1.44.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-a152d13c1d7ed405.rlib" "/opt/rustwide/rustup-home/toolchains/1.44.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-d92b841792fc008d.rlib" "/opt/rustwide/rustup-home/toolchains/1.44.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-a64c249515c023f5.rlib" "/opt/rustwide/rustup-home/toolchains/1.44.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-57654524b3e40c00.rlib" "/opt/rustwide/rustup-home/toolchains/1.44.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-72180f1527a726a2.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/1.44.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-990cc8f4a91a3ab4.rlib" "-Wl,-Bdynamic" "-lSDL2" "-lSDL2_gfx" "-lutil" "-lutil" "-ldl" "-lrt" "-lpthread" "-lgcc_s" "-lc" "-lm" "-lrt" "-lpthread" "-lutil" "-ldl" "-lutil"
[INFO] [stderr]   = note: /usr/bin/ld: cannot find -lSDL2_gfx
[INFO] [stderr]           collect2: error: ld returned 1 exit status
[INFO] [stderr]           
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error; 20 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] error: could not compile `chip8`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "a44b3b11a5cf6b575e232e32b7623a29c1cfc733b9340ef69005a0dd549eaa50"`
[INFO] running `"docker" "rm" "-f" "a44b3b11a5cf6b575e232e32b7623a29c1cfc733b9340ef69005a0dd549eaa50"`
[INFO] [stdout] a44b3b11a5cf6b575e232e32b7623a29c1cfc733b9340ef69005a0dd549eaa50