[INFO] cloning repository https://github.com/d2ci8xc5/chip8vm
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/d2ci8xc5/chip8vm" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fd2ci8xc5%2Fchip8vm", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fd2ci8xc5%2Fchip8vm'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ab98e3f549bdef2e6383a2b9d6e77c71642765c1
[INFO] testing d2ci8xc5/chip8vm against beta-2023-04-20 for beta-1.70-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fd2ci8xc5%2Fchip8vm" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/d2ci8xc5/chip8vm on toolchain beta-2023-04-20
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-04-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/d2ci8xc5/chip8vm
[INFO] finished tweaking git repo https://github.com/d2ci8xc5/chip8vm
[INFO] tweaked toml for git repo https://github.com/d2ci8xc5/chip8vm written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/d2ci8xc5/chip8vm already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-04-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 97e48b4a0c599f39c68f207878dcbdf29b2786bf631423960e32801fbba26a3a
[INFO] running `Command { std: "docker" "start" "-a" "97e48b4a0c599f39c68f207878dcbdf29b2786bf631423960e32801fbba26a3a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "97e48b4a0c599f39c68f207878dcbdf29b2786bf631423960e32801fbba26a3a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97e48b4a0c599f39c68f207878dcbdf29b2786bf631423960e32801fbba26a3a", kill_on_drop: false }`
[INFO] [stdout] 97e48b4a0c599f39c68f207878dcbdf29b2786bf631423960e32801fbba26a3a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 03fb4e14be87852c0518f609e89c28b6c004942db37803e6dc6e2a027f1fe922
[INFO] running `Command { std: "docker" "start" "-a" "03fb4e14be87852c0518f609e89c28b6c004942db37803e6dc6e2a027f1fe922", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling getrandom v0.1.13
[INFO] [stderr]    Compiling ppv-lite86 v0.2.6
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling sdl2 v0.32.2 (https://github.com/AngryLawyer/rust-sdl2#72d199e5)
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling sdl2-sys v0.32.6 (https://github.com/AngryLawyer/rust-sdl2#72d199e5)
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling c2-chacha v0.2.3
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.1
[INFO] [stderr]    Compiling rand v0.7.2
[INFO] [stderr]    Compiling num v0.1.42
[INFO] [stderr]    Compiling chip8vm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: type `color` should have an upper camel case name
[INFO] [stdout]  --> src/color.rs:3:10
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub enum color {
[INFO] [stdout]   |          ^^^^^ help: convert the identifier to upper camel case (notice the capitalization): `Color`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `red` should have an upper camel case name
[INFO] [stdout]  --> src/color.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     red,
[INFO] [stdout]   |     ^^^ help: convert the identifier to upper camel case: `Red`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `green` should have an upper camel case name
[INFO] [stdout]  --> src/color.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     green,
[INFO] [stdout]   |     ^^^^^ help: convert the identifier to upper camel case: `Green`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `blue` should have an upper camel case name
[INFO] [stdout]  --> src/color.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     blue,
[INFO] [stdout]   |     ^^^^ help: convert the identifier to upper camel case: `Blue`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `black` should have an upper camel case name
[INFO] [stdout]  --> src/color.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     black,
[INFO] [stdout]   |     ^^^^^ help: convert the identifier to upper camel case: `Black`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `cpu` should have an upper camel case name
[INFO] [stdout]  --> src/cpu.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct cpu {
[INFO] [stdout]   |            ^^^ help: convert the identifier to upper camel case (notice the capitalization): `Cpu`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/cpu.rs:282:24
[INFO] [stdout]     |
[INFO] [stdout] 282 |         self.v[0x0f] = (self.v[x] & (1 << 7) >> 7);
[INFO] [stdout]     |                        ^                         ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 282 -         self.v[0x0f] = (self.v[x] & (1 << 7) >> 7);
[INFO] [stdout] 282 +         self.v[0x0f] = self.v[x] & (1 << 7) >> 7;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/cpu.rs:311:21
[INFO] [stdout]     |
[INFO] [stdout] 311 |         self.v[x] = (kk & random_byte);
[INFO] [stdout]     |                     ^                ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 311 -         self.v[x] = (kk & random_byte);
[INFO] [stdout] 311 +         self.v[x] = kk & random_byte;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]    --> src/cpu.rs:319:37
[INFO] [stdout]     |
[INFO] [stdout] 319 |             let pixel = self.memory[(self.i + (y_offset as usize))];
[INFO] [stdout]     |                                     ^                            ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 319 -             let pixel = self.memory[(self.i + (y_offset as usize))];
[INFO] [stdout] 319 +             let pixel = self.memory[self.i + (y_offset as usize)];
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/cpu.rs:372:32
[INFO] [stdout]     |
[INFO] [stdout] 372 |         self.keypad_register = (x as u8);
[INFO] [stdout]     |                                ^       ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 372 -         self.keypad_register = (x as u8);
[INFO] [stdout] 372 +         self.keypad_register = x as u8;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::cpu::cpu`
[INFO] [stdout]  --> src/display.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::cpu::cpu;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `display` should have an upper camel case name
[INFO] [stdout]  --> src/display.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct display {
[INFO] [stdout]   |            ^^^^^^^ help: convert the identifier to upper camel case: `Display`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `keypad` should have an upper camel case name
[INFO] [stdout]  --> src/keypad.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct keypad {
[INFO] [stdout]   |            ^^^^^^ help: convert the identifier to upper camel case (notice the capitalization): `Keypad`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `cpu::cpu as _cpu`
[INFO] [stdout]  --> src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use cpu::cpu as _cpu;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/cpu.rs:114:13
[INFO] [stdout]     |
[INFO] [stdout] 114 |             (0x0f, _, 0x03, 0x03) => self.op_Fx33(x),
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `poll_keypad` is assigned to, but never used
[INFO] [stdout]    --> src/cpu.rs:129:17
[INFO] [stdout]     |
[INFO] [stdout] 129 |             let poll_keypad;
[INFO] [stdout]     |                 ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_poll_keypad` instead
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `poll_keypad` is never read
[INFO] [stdout]    --> src/cpu.rs:131:26
[INFO] [stdout]     |
[INFO] [stdout] 131 |                 Ok(x) => poll_keypad = x,
[INFO] [stdout]     |                          ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]    --> src/cpu.rs:262:37
[INFO] [stdout]     |
[INFO] [stdout] 262 |     fn op_8xy6(&mut self, x: usize, y: usize) {
[INFO] [stdout]     |                                     ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]    --> src/cpu.rs:281:37
[INFO] [stdout]     |
[INFO] [stdout] 281 |     fn op_8xyE(&mut self, x: usize, y: usize) {
[INFO] [stdout]     |                                     ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x_true`
[INFO] [stdout]   --> src/display.rs:34:21
[INFO] [stdout]    |
[INFO] [stdout] 34 |                 let x_true = (x as u32) * SCALE; 
[INFO] [stdout]    |                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_x_true`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y_true`
[INFO] [stdout]   --> src/display.rs:35:21
[INFO] [stdout]    |
[INFO] [stdout] 35 |                 let y_true = (y as u32) * SCALE; 
[INFO] [stdout]    |                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_y_true`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `draw_color` is never read
[INFO] [stdout]   --> src/display.rs:38:25
[INFO] [stdout]    |
[INFO] [stdout] 38 |                 let mut draw_color = color::black.value();
[INFO] [stdout]    |                         ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/display.rs:50:24
[INFO] [stdout]    |
[INFO] [stdout] 50 |                     Ok(x) => continue,
[INFO] [stdout]    |                        ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `gfx`
[INFO] [stdout]   --> src/display.rs:57:29
[INFO] [stdout]    |
[INFO] [stdout] 57 |     pub fn clear(&mut self, gfx: [u8; 32*64]) {
[INFO] [stdout]    |                             ^^^ help: if this is intentional, prefix it with an underscore: `_gfx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sdl_context`
[INFO] [stdout]   --> src/main.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 |     let sdl_context = sdl2::init().unwrap();
[INFO] [stdout]    |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sdl_context`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `color` is never used
[INFO] [stdout]  --> src/color.rs:3:10
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub enum color {
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `value` is never used
[INFO] [stdout]   --> src/color.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl color {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] 11 |     pub fn value(&self) -> Color {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `cpu` is never constructed
[INFO] [stdout]  --> src/cpu.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct cpu {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> src/cpu.rs:29:12
[INFO] [stdout]     |
[INFO] [stdout] 28  | impl cpu {
[INFO] [stdout]     | -------- associated items in this implementation
[INFO] [stdout] 29  |     pub fn new(sdl_context: &Sdl) -> cpu {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 57  |     pub fn cycle(&mut self) {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 142 |     pub fn fetch_opcode(&self) -> u16 {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 147 |     fn op_00e0(&mut self) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 156 |     fn op_00ee(&mut self) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 162 |     fn op_1nnn(&mut self, nnn: usize) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 167 |     fn op_2nnn(&mut self, nnn: usize) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 174 |     fn op_3xkk(&mut self, x: usize, kk: u8) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 183 |     fn op_4xkk(&mut self, x: usize, kk: u8) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 192 |     fn op_5xy0(&mut self, x: usize, y: usize) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 201 |     fn op_6xkk(&mut self, x: usize, kk: u8) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 207 |     fn op_7xkk(&mut self, x: usize, kk: u8) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 213 |     fn op_8xy0(&mut self, x: usize, y: usize) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 219 |     fn op_8xy1(&mut self, x: usize, y: usize) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 225 |     fn op_8xy2(&mut self, x: usize, y: usize) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 231 |     fn op_8xy3(&mut self, x: usize, y: usize) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 237 |     fn op_8xy4(&mut self, x: usize, y: usize) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 251 |     fn op_8xy5(&mut self, x: usize, y: usize) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 262 |     fn op_8xy6(&mut self, x: usize, y: usize) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 270 |     fn op_8xy7(&mut self, x: usize, y: usize) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 281 |     fn op_8xyE(&mut self, x: usize, y: usize) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 288 |     fn op_9xy0(&mut self, x: usize, y: usize) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 298 |     fn op_Annn(&mut self, nnn: usize) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 304 |     fn op_Bnnn(&mut self, nnn: usize) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 309 |     fn op_Cxkk(&mut self, x: usize, kk: u8) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 316 |     fn op_Dxyn(&mut self, x: usize, y: usize, n: u16) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 342 |     fn op_Ex9E(&mut self, x: usize) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 352 |     fn op_ExA1(&mut self, x: usize) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 362 |     fn op_Fx07(&mut self, x: usize) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 369 |     fn op_Fx0A(&mut self, x: usize) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 377 |     fn op_Fx15(&mut self, x: usize) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 383 |     fn op_Fx18(&mut self, x: usize) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 389 |     fn op_Fx1E(&mut self, x: usize) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 395 |     fn op_Fx29(&mut self, x: usize) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 401 |     fn op_Fx33(&mut self, x: usize) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 408 |     fn op_Fx55(&mut self, x: usize) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 415 |     fn op_Fx65(&mut self, x: usize) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SCALE` is never used
[INFO] [stdout]  --> src/display.rs:8:7
[INFO] [stdout]   |
[INFO] [stdout] 8 | const SCALE: u32 = 25;
[INFO] [stdout]   |       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `display` is never constructed
[INFO] [stdout]  --> src/display.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct display {
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `draw`, and `clear` are never used
[INFO] [stdout]   --> src/display.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl display {
[INFO] [stdout]    | ------------ associated items in this implementation
[INFO] [stdout] 14 |     pub fn new(sdl_context: &sdl2::Sdl) -> display {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 31 |     pub fn draw(&mut self, gfx: [u8; 32*64]) {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 57 |     pub fn clear(&mut self, gfx: [u8; 32*64]) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `font` is never used
[INFO] [stdout]  --> src/font.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub const font: [u8; 80] = [
[INFO] [stdout]   |           ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `keypad` is never constructed
[INFO] [stdout]  --> src/keypad.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct keypad {
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `poll` are never used
[INFO] [stdout]   --> src/keypad.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 9  | impl keypad {
[INFO] [stdout]    | ----------- associated items in this implementation
[INFO] [stdout] 10 |     pub fn new(sdl_context: &sdl2::Sdl) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 16 |     pub fn poll(&mut self) -> Result<[bool; 16], ()> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]    --> src/cpu.rs:242:12
[INFO] [stdout]     |
[INFO] [stdout] 242 |         if addition > 0xff {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_comparisons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `op_8xyE` should have a snake case name
[INFO] [stdout]    --> src/cpu.rs:281:8
[INFO] [stdout]     |
[INFO] [stdout] 281 |     fn op_8xyE(&mut self, x: usize, y: usize) {
[INFO] [stdout]     |        ^^^^^^^ help: convert the identifier to snake case: `op_8xy_e`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `op_Annn` should have a snake case name
[INFO] [stdout]    --> src/cpu.rs:298:8
[INFO] [stdout]     |
[INFO] [stdout] 298 |     fn op_Annn(&mut self, nnn: usize) {
[INFO] [stdout]     |        ^^^^^^^ help: convert the identifier to snake case: `op_annn`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `op_Bnnn` should have a snake case name
[INFO] [stdout]    --> src/cpu.rs:304:8
[INFO] [stdout]     |
[INFO] [stdout] 304 |     fn op_Bnnn(&mut self, nnn: usize) {
[INFO] [stdout]     |        ^^^^^^^ help: convert the identifier to snake case: `op_bnnn`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `op_Cxkk` should have a snake case name
[INFO] [stdout]    --> src/cpu.rs:309:8
[INFO] [stdout]     |
[INFO] [stdout] 309 |     fn op_Cxkk(&mut self, x: usize, kk: u8) {
[INFO] [stdout]     |        ^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `op_cxkk`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `op_Dxyn` should have a snake case name
[INFO] [stdout]    --> src/cpu.rs:316:8
[INFO] [stdout]     |
[INFO] [stdout] 316 |     fn op_Dxyn(&mut self, x: usize, y: usize, n: u16) {
[INFO] [stdout]     |        ^^^^^^^ help: convert the identifier to snake case: `op_dxyn`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `op_Ex9E` should have a snake case name
[INFO] [stdout]    --> src/cpu.rs:342:8
[INFO] [stdout]     |
[INFO] [stdout] 342 |     fn op_Ex9E(&mut self, x: usize) {
[INFO] [stdout]     |        ^^^^^^^ help: convert the identifier to snake case: `op_ex9_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `op_ExA1` should have a snake case name
[INFO] [stdout]    --> src/cpu.rs:352:8
[INFO] [stdout]     |
[INFO] [stdout] 352 |     fn op_ExA1(&mut self, x: usize) {
[INFO] [stdout]     |        ^^^^^^^ help: convert the identifier to snake case: `op_ex_a1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `op_Fx07` should have a snake case name
[INFO] [stdout]    --> src/cpu.rs:362:8
[INFO] [stdout]     |
[INFO] [stdout] 362 |     fn op_Fx07(&mut self, x: usize) {
[INFO] [stdout]     |        ^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `op_fx07`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `op_Fx0A` should have a snake case name
[INFO] [stdout]    --> src/cpu.rs:369:8
[INFO] [stdout]     |
[INFO] [stdout] 369 |     fn op_Fx0A(&mut self, x: usize) {
[INFO] [stdout]     |        ^^^^^^^ help: convert the identifier to snake case: `op_fx0_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `op_Fx15` should have a snake case name
[INFO] [stdout]    --> src/cpu.rs:377:8
[INFO] [stdout]     |
[INFO] [stdout] 377 |     fn op_Fx15(&mut self, x: usize) {
[INFO] [stdout]     |        ^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `op_fx15`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `op_Fx18` should have a snake case name
[INFO] [stdout]    --> src/cpu.rs:383:8
[INFO] [stdout]     |
[INFO] [stdout] 383 |     fn op_Fx18(&mut self, x: usize) {
[INFO] [stdout]     |        ^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `op_fx18`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `op_Fx1E` should have a snake case name
[INFO] [stdout]    --> src/cpu.rs:389:8
[INFO] [stdout]     |
[INFO] [stdout] 389 |     fn op_Fx1E(&mut self, x: usize) {
[INFO] [stdout]     |        ^^^^^^^ help: convert the identifier to snake case: `op_fx1_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `op_Fx29` should have a snake case name
[INFO] [stdout]    --> src/cpu.rs:395:8
[INFO] [stdout]     |
[INFO] [stdout] 395 |     fn op_Fx29(&mut self, x: usize) {
[INFO] [stdout]     |        ^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `op_fx29`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `op_Fx33` should have a snake case name
[INFO] [stdout]    --> src/cpu.rs:401:8
[INFO] [stdout]     |
[INFO] [stdout] 401 |     fn op_Fx33(&mut self, x: usize) {
[INFO] [stdout]     |        ^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `op_fx33`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `op_Fx55` should have a snake case name
[INFO] [stdout]    --> src/cpu.rs:408:8
[INFO] [stdout]     |
[INFO] [stdout] 408 |     fn op_Fx55(&mut self, x: usize) {
[INFO] [stdout]     |        ^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `op_fx55`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `op_Fx65` should have a snake case name
[INFO] [stdout]    --> src/cpu.rs:415:8
[INFO] [stdout]     |
[INFO] [stdout] 415 |     fn op_Fx65(&mut self, x: usize) {
[INFO] [stdout]     |        ^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `op_fx65`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `font` should have an upper case name
[INFO] [stdout]  --> src/font.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub const font: [u8; 80] = [
[INFO] [stdout]   |           ^^^^ help: convert the identifier to upper case: `FONT`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 53 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.87s
[INFO] running `Command { std: "docker" "inspect" "03fb4e14be87852c0518f609e89c28b6c004942db37803e6dc6e2a027f1fe922", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "03fb4e14be87852c0518f609e89c28b6c004942db37803e6dc6e2a027f1fe922", kill_on_drop: false }`
[INFO] [stdout] 03fb4e14be87852c0518f609e89c28b6c004942db37803e6dc6e2a027f1fe922
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4751ca49d39905c94fc5fdd130e20f5deecd6b87f180d687ad0b0b15a0830533
[INFO] running `Command { std: "docker" "start" "-a" "4751ca49d39905c94fc5fdd130e20f5deecd6b87f180d687ad0b0b15a0830533", kill_on_drop: false }`
[INFO] [stderr]    Compiling chip8vm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: type `color` should have an upper camel case name
[INFO] [stdout]  --> src/color.rs:3:10
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub enum color {
[INFO] [stdout]   |          ^^^^^ help: convert the identifier to upper camel case (notice the capitalization): `Color`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `red` should have an upper camel case name
[INFO] [stdout]  --> src/color.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     red,
[INFO] [stdout]   |     ^^^ help: convert the identifier to upper camel case: `Red`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `green` should have an upper camel case name
[INFO] [stdout]  --> src/color.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     green,
[INFO] [stdout]   |     ^^^^^ help: convert the identifier to upper camel case: `Green`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `blue` should have an upper camel case name
[INFO] [stdout]  --> src/color.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     blue,
[INFO] [stdout]   |     ^^^^ help: convert the identifier to upper camel case: `Blue`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `black` should have an upper camel case name
[INFO] [stdout]  --> src/color.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     black,
[INFO] [stdout]   |     ^^^^^ help: convert the identifier to upper camel case: `Black`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `cpu` should have an upper camel case name
[INFO] [stdout]  --> src/cpu.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct cpu {
[INFO] [stdout]   |            ^^^ help: convert the identifier to upper camel case (notice the capitalization): `Cpu`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/cpu.rs:282:24
[INFO] [stdout]     |
[INFO] [stdout] 282 |         self.v[0x0f] = (self.v[x] & (1 << 7) >> 7);
[INFO] [stdout]     |                        ^                         ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 282 -         self.v[0x0f] = (self.v[x] & (1 << 7) >> 7);
[INFO] [stdout] 282 +         self.v[0x0f] = self.v[x] & (1 << 7) >> 7;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/cpu.rs:311:21
[INFO] [stdout]     |
[INFO] [stdout] 311 |         self.v[x] = (kk & random_byte);
[INFO] [stdout]     |                     ^                ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 311 -         self.v[x] = (kk & random_byte);
[INFO] [stdout] 311 +         self.v[x] = kk & random_byte;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]    --> src/cpu.rs:319:37
[INFO] [stdout]     |
[INFO] [stdout] 319 |             let pixel = self.memory[(self.i + (y_offset as usize))];
[INFO] [stdout]     |                                     ^                            ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 319 -             let pixel = self.memory[(self.i + (y_offset as usize))];
[INFO] [stdout] 319 +             let pixel = self.memory[self.i + (y_offset as usize)];
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/cpu.rs:372:32
[INFO] [stdout]     |
[INFO] [stdout] 372 |         self.keypad_register = (x as u8);
[INFO] [stdout]     |                                ^       ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 372 -         self.keypad_register = (x as u8);
[INFO] [stdout] 372 +         self.keypad_register = x as u8;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::cpu::cpu`
[INFO] [stdout]  --> src/display.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::cpu::cpu;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `display` should have an upper camel case name
[INFO] [stdout]  --> src/display.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct display {
[INFO] [stdout]   |            ^^^^^^^ help: convert the identifier to upper camel case: `Display`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `keypad` should have an upper camel case name
[INFO] [stdout]  --> src/keypad.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct keypad {
[INFO] [stdout]   |            ^^^^^^ help: convert the identifier to upper camel case (notice the capitalization): `Keypad`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `cpu::cpu as _cpu`
[INFO] [stdout]  --> src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use cpu::cpu as _cpu;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/cpu.rs:114:13
[INFO] [stdout]     |
[INFO] [stdout] 114 |             (0x0f, _, 0x03, 0x03) => self.op_Fx33(x),
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `poll_keypad` is assigned to, but never used
[INFO] [stdout]    --> src/cpu.rs:129:17
[INFO] [stdout]     |
[INFO] [stdout] 129 |             let poll_keypad;
[INFO] [stdout]     |                 ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_poll_keypad` instead
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `poll_keypad` is never read
[INFO] [stdout]    --> src/cpu.rs:131:26
[INFO] [stdout]     |
[INFO] [stdout] 131 |                 Ok(x) => poll_keypad = x,
[INFO] [stdout]     |                          ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]    --> src/cpu.rs:262:37
[INFO] [stdout]     |
[INFO] [stdout] 262 |     fn op_8xy6(&mut self, x: usize, y: usize) {
[INFO] [stdout]     |                                     ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]    --> src/cpu.rs:281:37
[INFO] [stdout]     |
[INFO] [stdout] 281 |     fn op_8xyE(&mut self, x: usize, y: usize) {
[INFO] [stdout]     |                                     ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x_true`
[INFO] [stdout]   --> src/display.rs:34:21
[INFO] [stdout]    |
[INFO] [stdout] 34 |                 let x_true = (x as u32) * SCALE; 
[INFO] [stdout]    |                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_x_true`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y_true`
[INFO] [stdout]   --> src/display.rs:35:21
[INFO] [stdout]    |
[INFO] [stdout] 35 |                 let y_true = (y as u32) * SCALE; 
[INFO] [stdout]    |                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_y_true`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `draw_color` is never read
[INFO] [stdout]   --> src/display.rs:38:25
[INFO] [stdout]    |
[INFO] [stdout] 38 |                 let mut draw_color = color::black.value();
[INFO] [stdout]    |                         ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/display.rs:50:24
[INFO] [stdout]    |
[INFO] [stdout] 50 |                     Ok(x) => continue,
[INFO] [stdout]    |                        ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `gfx`
[INFO] [stdout]   --> src/display.rs:57:29
[INFO] [stdout]    |
[INFO] [stdout] 57 |     pub fn clear(&mut self, gfx: [u8; 32*64]) {
[INFO] [stdout]    |                             ^^^ help: if this is intentional, prefix it with an underscore: `_gfx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sdl_context`
[INFO] [stdout]   --> src/main.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 |     let sdl_context = sdl2::init().unwrap();
[INFO] [stdout]    |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sdl_context`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `red`, `green`, and `blue` are never constructed
[INFO] [stdout]  --> src/color.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub enum color {
[INFO] [stdout]   |          ----- variants in this enum
[INFO] [stdout] 4 |     red,
[INFO] [stdout]   |     ^^^
[INFO] [stdout] 5 |     green,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 6 |     blue,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple fields are never read
[INFO] [stdout]   --> src/cpu.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 8  | pub struct cpu {
[INFO] [stdout]    |            --- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 11 |     v: [u8; 16],
[INFO] [stdout]    |     ^
[INFO] [stdout] 12 |     i: usize,  //u16
[INFO] [stdout] 13 |     pc: usize, //u16
[INFO] [stdout]    |     ^^
[INFO] [stdout] ...
[INFO] [stdout] 17 |     stack: [usize; 16], //u16
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 18 |     sp: usize,          //u16
[INFO] [stdout]    |     ^^
[INFO] [stdout] 19 |     key: [bool; 16],
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 20 |
[INFO] [stdout] 21 |     redraw_flag: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 22 |     keypad_wait_flag: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 23 |     keypad_register: u8,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 24 |     keypad: keypad,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 25 |     display: display
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple methods are never used
[INFO] [stdout]    --> src/cpu.rs:57:12
[INFO] [stdout]     |
[INFO] [stdout] 28  | impl cpu {
[INFO] [stdout]     | -------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 57  |     pub fn cycle(&mut self) {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 142 |     pub fn fetch_opcode(&self) -> u16 {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 147 |     fn op_00e0(&mut self) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 156 |     fn op_00ee(&mut self) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 162 |     fn op_1nnn(&mut self, nnn: usize) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 167 |     fn op_2nnn(&mut self, nnn: usize) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 174 |     fn op_3xkk(&mut self, x: usize, kk: u8) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 183 |     fn op_4xkk(&mut self, x: usize, kk: u8) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 192 |     fn op_5xy0(&mut self, x: usize, y: usize) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 201 |     fn op_6xkk(&mut self, x: usize, kk: u8) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 207 |     fn op_7xkk(&mut self, x: usize, kk: u8) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 213 |     fn op_8xy0(&mut self, x: usize, y: usize) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 219 |     fn op_8xy1(&mut self, x: usize, y: usize) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 225 |     fn op_8xy2(&mut self, x: usize, y: usize) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 231 |     fn op_8xy3(&mut self, x: usize, y: usize) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 237 |     fn op_8xy4(&mut self, x: usize, y: usize) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 251 |     fn op_8xy5(&mut self, x: usize, y: usize) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 262 |     fn op_8xy6(&mut self, x: usize, y: usize) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 270 |     fn op_8xy7(&mut self, x: usize, y: usize) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 281 |     fn op_8xyE(&mut self, x: usize, y: usize) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 288 |     fn op_9xy0(&mut self, x: usize, y: usize) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 298 |     fn op_Annn(&mut self, nnn: usize) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 304 |     fn op_Bnnn(&mut self, nnn: usize) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 309 |     fn op_Cxkk(&mut self, x: usize, kk: u8) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 316 |     fn op_Dxyn(&mut self, x: usize, y: usize, n: u16) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 342 |     fn op_Ex9E(&mut self, x: usize) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 352 |     fn op_ExA1(&mut self, x: usize) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 362 |     fn op_Fx07(&mut self, x: usize) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 369 |     fn op_Fx0A(&mut self, x: usize) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 377 |     fn op_Fx15(&mut self, x: usize) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 383 |     fn op_Fx18(&mut self, x: usize) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 389 |     fn op_Fx1E(&mut self, x: usize) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 395 |     fn op_Fx29(&mut self, x: usize) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 401 |     fn op_Fx33(&mut self, x: usize) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 408 |     fn op_Fx55(&mut self, x: usize) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 415 |     fn op_Fx65(&mut self, x: usize) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SCALE` is never used
[INFO] [stdout]  --> src/display.rs:8:7
[INFO] [stdout]   |
[INFO] [stdout] 8 | const SCALE: u32 = 25;
[INFO] [stdout]   |       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `canvas` is never read
[INFO] [stdout]   --> src/display.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 9  | pub struct display {
[INFO] [stdout]    |            ------- field in this struct
[INFO] [stdout] 10 |     canvas: Canvas<Window>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `draw` and `clear` are never used
[INFO] [stdout]   --> src/display.rs:31:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl display {
[INFO] [stdout]    | ------------ methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 31 |     pub fn draw(&mut self, gfx: [u8; 32*64]) {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 57 |     pub fn clear(&mut self, gfx: [u8; 32*64]) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `events` is never read
[INFO] [stdout]  --> src/keypad.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct keypad {
[INFO] [stdout]   |            ------ field in this struct
[INFO] [stdout] 6 |     events: sdl2::EventPump,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `poll` is never used
[INFO] [stdout]   --> src/keypad.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 9  | impl keypad {
[INFO] [stdout]    | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 16 |     pub fn poll(&mut self) -> Result<[bool; 16], ()> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]    --> src/cpu.rs:242:12
[INFO] [stdout]     |
[INFO] [stdout] 242 |         if addition > 0xff {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_comparisons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `op_8xyE` should have a snake case name
[INFO] [stdout]    --> src/cpu.rs:281:8
[INFO] [stdout]     |
[INFO] [stdout] 281 |     fn op_8xyE(&mut self, x: usize, y: usize) {
[INFO] [stdout]     |        ^^^^^^^ help: convert the identifier to snake case: `op_8xy_e`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `op_Annn` should have a snake case name
[INFO] [stdout]    --> src/cpu.rs:298:8
[INFO] [stdout]     |
[INFO] [stdout] 298 |     fn op_Annn(&mut self, nnn: usize) {
[INFO] [stdout]     |        ^^^^^^^ help: convert the identifier to snake case: `op_annn`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `op_Bnnn` should have a snake case name
[INFO] [stdout]    --> src/cpu.rs:304:8
[INFO] [stdout]     |
[INFO] [stdout] 304 |     fn op_Bnnn(&mut self, nnn: usize) {
[INFO] [stdout]     |        ^^^^^^^ help: convert the identifier to snake case: `op_bnnn`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `op_Cxkk` should have a snake case name
[INFO] [stdout]    --> src/cpu.rs:309:8
[INFO] [stdout]     |
[INFO] [stdout] 309 |     fn op_Cxkk(&mut self, x: usize, kk: u8) {
[INFO] [stdout]     |        ^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `op_cxkk`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `op_Dxyn` should have a snake case name
[INFO] [stdout]    --> src/cpu.rs:316:8
[INFO] [stdout]     |
[INFO] [stdout] 316 |     fn op_Dxyn(&mut self, x: usize, y: usize, n: u16) {
[INFO] [stdout]     |        ^^^^^^^ help: convert the identifier to snake case: `op_dxyn`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `op_Ex9E` should have a snake case name
[INFO] [stdout]    --> src/cpu.rs:342:8
[INFO] [stdout]     |
[INFO] [stdout] 342 |     fn op_Ex9E(&mut self, x: usize) {
[INFO] [stdout]     |        ^^^^^^^ help: convert the identifier to snake case: `op_ex9_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `op_ExA1` should have a snake case name
[INFO] [stdout]    --> src/cpu.rs:352:8
[INFO] [stdout]     |
[INFO] [stdout] 352 |     fn op_ExA1(&mut self, x: usize) {
[INFO] [stdout]     |        ^^^^^^^ help: convert the identifier to snake case: `op_ex_a1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `op_Fx07` should have a snake case name
[INFO] [stdout]    --> src/cpu.rs:362:8
[INFO] [stdout]     |
[INFO] [stdout] 362 |     fn op_Fx07(&mut self, x: usize) {
[INFO] [stdout]     |        ^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `op_fx07`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `op_Fx0A` should have a snake case name
[INFO] [stdout]    --> src/cpu.rs:369:8
[INFO] [stdout]     |
[INFO] [stdout] 369 |     fn op_Fx0A(&mut self, x: usize) {
[INFO] [stdout]     |        ^^^^^^^ help: convert the identifier to snake case: `op_fx0_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `op_Fx15` should have a snake case name
[INFO] [stdout]    --> src/cpu.rs:377:8
[INFO] [stdout]     |
[INFO] [stdout] 377 |     fn op_Fx15(&mut self, x: usize) {
[INFO] [stdout]     |        ^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `op_fx15`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `op_Fx18` should have a snake case name
[INFO] [stdout]    --> src/cpu.rs:383:8
[INFO] [stdout]     |
[INFO] [stdout] 383 |     fn op_Fx18(&mut self, x: usize) {
[INFO] [stdout]     |        ^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `op_fx18`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `op_Fx1E` should have a snake case name
[INFO] [stdout]    --> src/cpu.rs:389:8
[INFO] [stdout]     |
[INFO] [stdout] 389 |     fn op_Fx1E(&mut self, x: usize) {
[INFO] [stdout]     |        ^^^^^^^ help: convert the identifier to snake case: `op_fx1_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `op_Fx29` should have a snake case name
[INFO] [stdout]    --> src/cpu.rs:395:8
[INFO] [stdout]     |
[INFO] [stdout] 395 |     fn op_Fx29(&mut self, x: usize) {
[INFO] [stdout]     |        ^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `op_fx29`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `op_Fx33` should have a snake case name
[INFO] [stdout]    --> src/cpu.rs:401:8
[INFO] [stdout]     |
[INFO] [stdout] 401 |     fn op_Fx33(&mut self, x: usize) {
[INFO] [stdout]     |        ^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `op_fx33`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `op_Fx55` should have a snake case name
[INFO] [stdout]    --> src/cpu.rs:408:8
[INFO] [stdout]     |
[INFO] [stdout] 408 |     fn op_Fx55(&mut self, x: usize) {
[INFO] [stdout]     |        ^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `op_fx55`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `op_Fx65` should have a snake case name
[INFO] [stdout]    --> src/cpu.rs:415:8
[INFO] [stdout]     |
[INFO] [stdout] 415 |     fn op_Fx65(&mut self, x: usize) {
[INFO] [stdout]     |        ^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `op_fx65`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `font` should have an upper case name
[INFO] [stdout]  --> src/font.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub const font: [u8; 80] = [
[INFO] [stdout]   |           ^^^^ help: convert the identifier to upper case: `FONT`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 51 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.39s
[INFO] running `Command { std: "docker" "inspect" "4751ca49d39905c94fc5fdd130e20f5deecd6b87f180d687ad0b0b15a0830533", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4751ca49d39905c94fc5fdd130e20f5deecd6b87f180d687ad0b0b15a0830533", kill_on_drop: false }`
[INFO] [stdout] 4751ca49d39905c94fc5fdd130e20f5deecd6b87f180d687ad0b0b15a0830533
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 154ff61c185ceeba5893fc9e20a9c11338c58ee7c28c9f6549bb0ba47da54a94
[INFO] running `Command { std: "docker" "start" "-a" "154ff61c185ceeba5893fc9e20a9c11338c58ee7c28c9f6549bb0ba47da54a94", kill_on_drop: false }`
[INFO] [stderr] warning: type `color` should have an upper camel case name
[INFO] [stderr]  --> src/color.rs:3:10
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub enum color {
[INFO] [stderr]   |          ^^^^^ help: convert the identifier to upper camel case (notice the capitalization): `Color`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant `red` should have an upper camel case name
[INFO] [stderr]  --> src/color.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 |     red,
[INFO] [stderr]   |     ^^^ help: convert the identifier to upper camel case: `Red`
[INFO] [stderr] 
[INFO] [stderr] warning: variant `green` should have an upper camel case name
[INFO] [stderr]  --> src/color.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 |     green,
[INFO] [stderr]   |     ^^^^^ help: convert the identifier to upper camel case: `Green`
[INFO] [stderr] 
[INFO] [stderr] warning: variant `blue` should have an upper camel case name
[INFO] [stderr]  --> src/color.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 |     blue,
[INFO] [stderr]   |     ^^^^ help: convert the identifier to upper camel case: `Blue`
[INFO] [stderr] 
[INFO] [stderr] warning: variant `black` should have an upper camel case name
[INFO] [stderr]  --> src/color.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     black,
[INFO] [stderr]   |     ^^^^^ help: convert the identifier to upper camel case: `Black`
[INFO] [stderr] 
[INFO] [stderr] warning: type `cpu` should have an upper camel case name
[INFO] [stderr]  --> src/cpu.rs:8:12
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub struct cpu {
[INFO] [stderr]   |            ^^^ help: convert the identifier to upper camel case (notice the capitalization): `Cpu`
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]    --> src/cpu.rs:282:24
[INFO] [stderr]     |
[INFO] [stderr] 282 |         self.v[0x0f] = (self.v[x] & (1 << 7) >> 7);
[INFO] [stderr]     |                        ^                         ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 282 -         self.v[0x0f] = (self.v[x] & (1 << 7) >> 7);
[INFO] [stderr] 282 +         self.v[0x0f] = self.v[x] & (1 << 7) >> 7;
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]    --> src/cpu.rs:311:21
[INFO] [stderr]     |
[INFO] [stderr] 311 |         self.v[x] = (kk & random_byte);
[INFO] [stderr]     |                     ^                ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 311 -         self.v[x] = (kk & random_byte);
[INFO] [stderr] 311 +         self.v[x] = kk & random_byte;
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around index expression
[INFO] [stderr]    --> src/cpu.rs:319:37
[INFO] [stderr]     |
[INFO] [stderr] 319 |             let pixel = self.memory[(self.i + (y_offset as usize))];
[INFO] [stderr]     |                                     ^                            ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 319 -             let pixel = self.memory[(self.i + (y_offset as usize))];
[INFO] [stderr] 319 +             let pixel = self.memory[self.i + (y_offset as usize)];
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]    --> src/cpu.rs:372:32
[INFO] [stderr]     |
[INFO] [stderr] 372 |         self.keypad_register = (x as u8);
[INFO] [stderr]     |                                ^       ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 372 -         self.keypad_register = (x as u8);
[INFO] [stderr] 372 +         self.keypad_register = x as u8;
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::cpu::cpu`
[INFO] [stderr]  --> src/display.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use crate::cpu::cpu;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type `display` should have an upper camel case name
[INFO] [stderr]  --> src/display.rs:9:12
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub struct display {
[INFO] [stderr]   |            ^^^^^^^ help: convert the identifier to upper camel case: `Display`
[INFO] [stderr] 
[INFO] [stderr] warning: type `keypad` should have an upper camel case name
[INFO] [stderr]  --> src/keypad.rs:5:12
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub struct keypad {
[INFO] [stderr]   |            ^^^^^^ help: convert the identifier to upper camel case (notice the capitalization): `Keypad`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `cpu::cpu as _cpu`
[INFO] [stderr]  --> src/main.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use cpu::cpu as _cpu;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/cpu.rs:114:13
[INFO] [stderr]     |
[INFO] [stderr] 114 |             (0x0f, _, 0x03, 0x03) => self.op_Fx33(x),
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `poll_keypad` is assigned to, but never used
[INFO] [stderr]    --> src/cpu.rs:129:17
[INFO] [stderr]     |
[INFO] [stderr] 129 |             let poll_keypad;
[INFO] [stderr]     |                 ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: consider using `_poll_keypad` instead
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `poll_keypad` is never read
[INFO] [stderr]    --> src/cpu.rs:131:26
[INFO] [stderr]     |
[INFO] [stderr] 131 |                 Ok(x) => poll_keypad = x,
[INFO] [stderr]     |                          ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `y`
[INFO] [stderr]    --> src/cpu.rs:262:37
[INFO] [stderr]     |
[INFO] [stderr] 262 |     fn op_8xy6(&mut self, x: usize, y: usize) {
[INFO] [stderr]     |                                     ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `y`
[INFO] [stderr]    --> src/cpu.rs:281:37
[INFO] [stderr]     |
[INFO] [stderr] 281 |     fn op_8xyE(&mut self, x: usize, y: usize) {
[INFO] [stderr]     |                                     ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x_true`
[INFO] [stderr]   --> src/display.rs:34:21
[INFO] [stderr]    |
[INFO] [stderr] 34 |                 let x_true = (x as u32) * SCALE; 
[INFO] [stderr]    |                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_x_true`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `y_true`
[INFO] [stderr]   --> src/display.rs:35:21
[INFO] [stderr]    |
[INFO] [stderr] 35 |                 let y_true = (y as u32) * SCALE; 
[INFO] [stderr]    |                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_y_true`
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `draw_color` is never read
[INFO] [stderr]   --> src/display.rs:38:25
[INFO] [stderr]    |
[INFO] [stderr] 38 |                 let mut draw_color = color::black.value();
[INFO] [stderr]    |                         ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]   --> src/display.rs:50:24
[INFO] [stderr]    |
[INFO] [stderr] 50 |                     Ok(x) => continue,
[INFO] [stderr]    |                        ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `gfx`
[INFO] [stderr]   --> src/display.rs:57:29
[INFO] [stderr]    |
[INFO] [stderr] 57 |     pub fn clear(&mut self, gfx: [u8; 32*64]) {
[INFO] [stderr]    |                             ^^^ help: if this is intentional, prefix it with an underscore: `_gfx`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `sdl_context`
[INFO] [stderr]   --> src/main.rs:20:9
[INFO] [stderr]    |
[INFO] [stderr] 20 |     let sdl_context = sdl2::init().unwrap();
[INFO] [stderr]    |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sdl_context`
[INFO] [stderr] 
[INFO] [stderr] warning: variants `red`, `green`, and `blue` are never constructed
[INFO] [stderr]  --> src/color.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub enum color {
[INFO] [stderr]   |          ----- variants in this enum
[INFO] [stderr] 4 |     red,
[INFO] [stderr]   |     ^^^
[INFO] [stderr] 5 |     green,
[INFO] [stderr]   |     ^^^^^
[INFO] [stderr] 6 |     blue,
[INFO] [stderr]   |     ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: multiple fields are never read
[INFO] [stderr]   --> src/cpu.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 8  | pub struct cpu {
[INFO] [stderr]    |            --- fields in this struct
[INFO] [stderr] ...
[INFO] [stderr] 11 |     v: [u8; 16],
[INFO] [stderr]    |     ^
[INFO] [stderr] 12 |     i: usize,  //u16
[INFO] [stderr] 13 |     pc: usize, //u16
[INFO] [stderr]    |     ^^
[INFO] [stderr] ...
[INFO] [stderr] 17 |     stack: [usize; 16], //u16
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 18 |     sp: usize,          //u16
[INFO] [stderr]    |     ^^
[INFO] [stderr] 19 |     key: [bool; 16],
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 20 |
[INFO] [stderr] 21 |     redraw_flag: bool,
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr] 22 |     keypad_wait_flag: bool,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 23 |     keypad_register: u8,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 24 |     keypad: keypad,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 25 |     display: display
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: multiple methods are never used
[INFO] [stderr]    --> src/cpu.rs:57:12
[INFO] [stderr]     |
[INFO] [stderr] 28  | impl cpu {
[INFO] [stderr]     | -------- methods in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 57  |     pub fn cycle(&mut self) {
[INFO] [stderr]     |            ^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 142 |     pub fn fetch_opcode(&self) -> u16 {
[INFO] [stderr]     |            ^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 147 |     fn op_00e0(&mut self) {
[INFO] [stderr]     |        ^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 156 |     fn op_00ee(&mut self) {
[INFO] [stderr]     |        ^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 162 |     fn op_1nnn(&mut self, nnn: usize) {
[INFO] [stderr]     |        ^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 167 |     fn op_2nnn(&mut self, nnn: usize) {
[INFO] [stderr]     |        ^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 174 |     fn op_3xkk(&mut self, x: usize, kk: u8) {
[INFO] [stderr]     |        ^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 183 |     fn op_4xkk(&mut self, x: usize, kk: u8) {
[INFO] [stderr]     |        ^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 192 |     fn op_5xy0(&mut self, x: usize, y: usize) {
[INFO] [stderr]     |        ^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 201 |     fn op_6xkk(&mut self, x: usize, kk: u8) {
[INFO] [stderr]     |        ^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 207 |     fn op_7xkk(&mut self, x: usize, kk: u8) {
[INFO] [stderr]     |        ^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 213 |     fn op_8xy0(&mut self, x: usize, y: usize) {
[INFO] [stderr]     |        ^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 219 |     fn op_8xy1(&mut self, x: usize, y: usize) {
[INFO] [stderr]     |        ^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 225 |     fn op_8xy2(&mut self, x: usize, y: usize) {
[INFO] [stderr]     |        ^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 231 |     fn op_8xy3(&mut self, x: usize, y: usize) {
[INFO] [stderr]     |        ^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 237 |     fn op_8xy4(&mut self, x: usize, y: usize) {
[INFO] [stderr]     |        ^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 251 |     fn op_8xy5(&mut self, x: usize, y: usize) {
[INFO] [stderr]     |        ^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 262 |     fn op_8xy6(&mut self, x: usize, y: usize) {
[INFO] [stderr]     |        ^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 270 |     fn op_8xy7(&mut self, x: usize, y: usize) {
[INFO] [stderr]     |        ^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 281 |     fn op_8xyE(&mut self, x: usize, y: usize) {
[INFO] [stderr]     |        ^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 288 |     fn op_9xy0(&mut self, x: usize, y: usize) {
[INFO] [stderr]     |        ^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 298 |     fn op_Annn(&mut self, nnn: usize) {
[INFO] [stderr]     |        ^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 304 |     fn op_Bnnn(&mut self, nnn: usize) {
[INFO] [stderr]     |        ^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 309 |     fn op_Cxkk(&mut self, x: usize, kk: u8) {
[INFO] [stderr]     |        ^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 316 |     fn op_Dxyn(&mut self, x: usize, y: usize, n: u16) {
[INFO] [stderr]     |        ^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 342 |     fn op_Ex9E(&mut self, x: usize) {
[INFO] [stderr]     |        ^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 352 |     fn op_ExA1(&mut self, x: usize) {
[INFO] [stderr]     |        ^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 362 |     fn op_Fx07(&mut self, x: usize) {
[INFO] [stderr]     |        ^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 369 |     fn op_Fx0A(&mut self, x: usize) {
[INFO] [stderr]     |        ^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 377 |     fn op_Fx15(&mut self, x: usize) {
[INFO] [stderr]     |        ^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 383 |     fn op_Fx18(&mut self, x: usize) {
[INFO] [stderr]     |        ^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 389 |     fn op_Fx1E(&mut self, x: usize) {
[INFO] [stderr]     |        ^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 395 |     fn op_Fx29(&mut self, x: usize) {
[INFO] [stderr]     |        ^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 401 |     fn op_Fx33(&mut self, x: usize) {
[INFO] [stderr]     |        ^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 408 |     fn op_Fx55(&mut self, x: usize) {
[INFO] [stderr]     |        ^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 415 |     fn op_Fx65(&mut self, x: usize) {
[INFO] [stderr]     |        ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `SCALE` is never used
[INFO] [stderr]  --> src/display.rs:8:7
[INFO] [stderr]   |
[INFO] [stderr] 8 | const SCALE: u32 = 25;
[INFO] [stderr]   |       ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field `canvas` is never read
[INFO] [stderr]   --> src/display.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 9  | pub struct display {
[INFO] [stderr]    |            ------- field in this struct
[INFO] [stderr] 10 |     canvas: Canvas<Window>,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: methods `draw` and `clear` are never used
[INFO] [stderr]   --> src/display.rs:31:12
[INFO] [stderr]    |
[INFO] [stderr] 13 | impl display {
[INFO] [stderr]    | ------------ methods in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 31 |     pub fn draw(&mut self, gfx: [u8; 32*64]) {
[INFO] [stderr]    |            ^^^^
[INFO] [stderr] ...
[INFO] [stderr] 57 |     pub fn clear(&mut self, gfx: [u8; 32*64]) {
[INFO] [stderr]    |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field `events` is never read
[INFO] [stderr]  --> src/keypad.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub struct keypad {
[INFO] [stderr]   |            ------ field in this struct
[INFO] [stderr] 6 |     events: sdl2::EventPump,
[INFO] [stderr]   |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `poll` is never used
[INFO] [stderr]   --> src/keypad.rs:16:12
[INFO] [stderr]    |
[INFO] [stderr] 9  | impl keypad {
[INFO] [stderr]    | ----------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 16 |     pub fn poll(&mut self) -> Result<[bool; 16], ()> {
[INFO] [stderr]    |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: comparison is useless due to type limits
[INFO] [stderr]    --> src/cpu.rs:242:12
[INFO] [stderr]     |
[INFO] [stderr] 242 |         if addition > 0xff {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_comparisons)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method `op_8xyE` should have a snake case name
[INFO] [stderr]    --> src/cpu.rs:281:8
[INFO] [stderr]     |
[INFO] [stderr] 281 |     fn op_8xyE(&mut self, x: usize, y: usize) {
[INFO] [stderr]     |        ^^^^^^^ help: convert the identifier to snake case: `op_8xy_e`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method `op_Annn` should have a snake case name
[INFO] [stderr]    --> src/cpu.rs:298:8
[INFO] [stderr]     |
[INFO] [stderr] 298 |     fn op_Annn(&mut self, nnn: usize) {
[INFO] [stderr]     |        ^^^^^^^ help: convert the identifier to snake case: `op_annn`
[INFO] [stderr] 
[INFO] [stderr] warning: method `op_Bnnn` should have a snake case name
[INFO] [stderr]    --> src/cpu.rs:304:8
[INFO] [stderr]     |
[INFO] [stderr] 304 |     fn op_Bnnn(&mut self, nnn: usize) {
[INFO] [stderr]     |        ^^^^^^^ help: convert the identifier to snake case: `op_bnnn`
[INFO] [stderr] 
[INFO] [stderr] warning: method `op_Cxkk` should have a snake case name
[INFO] [stderr]    --> src/cpu.rs:309:8
[INFO] [stderr]     |
[INFO] [stderr] 309 |     fn op_Cxkk(&mut self, x: usize, kk: u8) {
[INFO] [stderr]     |        ^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `op_cxkk`
[INFO] [stderr] 
[INFO] [stderr] warning: method `op_Dxyn` should have a snake case name
[INFO] [stderr]    --> src/cpu.rs:316:8
[INFO] [stderr]     |
[INFO] [stderr] 316 |     fn op_Dxyn(&mut self, x: usize, y: usize, n: u16) {
[INFO] [stderr]     |        ^^^^^^^ help: convert the identifier to snake case: `op_dxyn`
[INFO] [stderr] 
[INFO] [stderr] warning: method `op_Ex9E` should have a snake case name
[INFO] [stderr]    --> src/cpu.rs:342:8
[INFO] [stderr]     |
[INFO] [stderr] 342 |     fn op_Ex9E(&mut self, x: usize) {
[INFO] [stderr]     |        ^^^^^^^ help: convert the identifier to snake case: `op_ex9_e`
[INFO] [stderr] 
[INFO] [stderr] warning: method `op_ExA1` should have a snake case name
[INFO] [stderr]    --> src/cpu.rs:352:8
[INFO] [stderr]     |
[INFO] [stderr] 352 |     fn op_ExA1(&mut self, x: usize) {
[INFO] [stderr]     |        ^^^^^^^ help: convert the identifier to snake case: `op_ex_a1`
[INFO] [stderr] 
[INFO] [stderr] warning: method `op_Fx07` should have a snake case name
[INFO] [stderr]    --> src/cpu.rs:362:8
[INFO] [stderr]     |
[INFO] [stderr] 362 |     fn op_Fx07(&mut self, x: usize) {
[INFO] [stderr]     |        ^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `op_fx07`
[INFO] [stderr] 
[INFO] [stderr] warning: method `op_Fx0A` should have a snake case name
[INFO] [stderr]    --> src/cpu.rs:369:8
[INFO] [stderr]     |
[INFO] [stderr] 369 |     fn op_Fx0A(&mut self, x: usize) {
[INFO] [stderr]     |        ^^^^^^^ help: convert the identifier to snake case: `op_fx0_a`
[INFO] [stderr] 
[INFO] [stderr] warning: method `op_Fx15` should have a snake case name
[INFO] [stderr]    --> src/cpu.rs:377:8
[INFO] [stderr]     |
[INFO] [stderr] 377 |     fn op_Fx15(&mut self, x: usize) {
[INFO] [stderr]     |        ^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `op_fx15`
[INFO] [stderr] 
[INFO] [stderr] warning: method `op_Fx18` should have a snake case name
[INFO] [stderr]    --> src/cpu.rs:383:8
[INFO] [stderr]     |
[INFO] [stderr] 383 |     fn op_Fx18(&mut self, x: usize) {
[INFO] [stderr]     |        ^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `op_fx18`
[INFO] [stderr] 
[INFO] [stderr] warning: method `op_Fx1E` should have a snake case name
[INFO] [stderr]    --> src/cpu.rs:389:8
[INFO] [stderr]     |
[INFO] [stderr] 389 |     fn op_Fx1E(&mut self, x: usize) {
[INFO] [stderr]     |        ^^^^^^^ help: convert the identifier to snake case: `op_fx1_e`
[INFO] [stderr] 
[INFO] [stderr] warning: method `op_Fx29` should have a snake case name
[INFO] [stderr]    --> src/cpu.rs:395:8
[INFO] [stderr]     |
[INFO] [stderr] 395 |     fn op_Fx29(&mut self, x: usize) {
[INFO] [stderr]     |        ^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `op_fx29`
[INFO] [stderr] 
[INFO] [stderr] warning: method `op_Fx33` should have a snake case name
[INFO] [stderr]    --> src/cpu.rs:401:8
[INFO] [stderr]     |
[INFO] [stderr] 401 |     fn op_Fx33(&mut self, x: usize) {
[INFO] [stderr]     |        ^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `op_fx33`
[INFO] [stderr] 
[INFO] [stderr] warning: method `op_Fx55` should have a snake case name
[INFO] [stderr]    --> src/cpu.rs:408:8
[INFO] [stderr]     |
[INFO] [stderr] 408 |     fn op_Fx55(&mut self, x: usize) {
[INFO] [stderr]     |        ^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `op_fx55`
[INFO] [stderr] 
[INFO] [stderr] warning: method `op_Fx65` should have a snake case name
[INFO] [stderr]    --> src/cpu.rs:415:8
[INFO] [stderr]     |
[INFO] [stderr] 415 |     fn op_Fx65(&mut self, x: usize) {
[INFO] [stderr]     |        ^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `op_fx65`
[INFO] [stderr] 
[INFO] [stderr] warning: constant `font` should have an upper case name
[INFO] [stderr]  --> src/font.rs:1:11
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub const font: [u8; 80] = [
[INFO] [stderr]   |           ^^^^ help: convert the identifier to upper case: `FONT`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `chip8vm` (bin "chip8vm" test) generated 51 warnings (run `cargo fix --bin "chip8vm" --tests` to apply 13 suggestions)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/chip8vm-e85cc5977f317429)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr] error: XDG_RUNTIME_DIR not set in the environment.
[INFO] [stdout] test cpu::tests::test_new ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- cpu::tests::test_new stdout ----
[INFO] [stdout] thread 'cpu::tests::test_new' panicked at 'called `Result::unwrap()` on an `Err` value: "No available video device"', src/display.rs:15:51
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x55a3781358ca - std::backtrace_rs::backtrace::libunwind::trace::h2f05d0192276a8f6
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5
[INFO] [stdout]    1:     0x55a3781358ca - std::backtrace_rs::backtrace::trace_unsynchronized::hedc23dff7a1af150
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x55a3781358ca - std::sys_common::backtrace::_print_fmt::h17541ef7592f3ce2
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/sys_common/backtrace.rs:65:5
[INFO] [stdout]    3:     0x55a3781358ca - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h20f75df5ab0c0792
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/sys_common/backtrace.rs:44:22
[INFO] [stdout]    4:     0x55a37815951f - core::fmt::write::h78109e6f466b3af6
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/core/src/fmt/mod.rs:1254:17
[INFO] [stdout]    5:     0x55a378132c15 - std::io::Write::write_fmt::hd24bfb68a1b35a25
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/io/mod.rs:1698:15
[INFO] [stdout]    6:     0x55a378135695 - std::sys_common::backtrace::_print::h8dac57a9f8fbf9a5
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/sys_common/backtrace.rs:47:5
[INFO] [stdout]    7:     0x55a378135695 - std::sys_common::backtrace::print::hf9ecbf41d1aa712f
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/sys_common/backtrace.rs:34:9
[INFO] [stdout]    8:     0x55a37813734e - std::panicking::default_hook::{{closure}}::h04c07acfc84ca028
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/panicking.rs:269:22
[INFO] [stdout]    9:     0x55a378137081 - std::panicking::default_hook::h01f6bb23e1eceb2c
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/panicking.rs:285:9
[INFO] [stdout]   10:     0x55a378105fab - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h87fe9f7b2fd49e4c
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/alloc/src/boxed.rs:1987:9
[INFO] [stdout]   11:     0x55a378105fab - test::test_main::{{closure}}::he94d679243a7531b
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/test/src/lib.rs:134:21
[INFO] [stdout]   12:     0x55a378137a34 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h3f2d6d8b14c4769f
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/alloc/src/boxed.rs:1987:9
[INFO] [stdout]   13:     0x55a378137a34 - std::panicking::rust_panic_with_hook::h2bb3722bbaf2f6df
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/panicking.rs:695:13
[INFO] [stdout]   14:     0x55a3781377a9 - std::panicking::begin_panic_handler::{{closure}}::h91bc7f36a4be011b
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/panicking.rs:582:13
[INFO] [stdout]   15:     0x55a378135d36 - std::sys_common::backtrace::__rust_end_short_backtrace::h8b3d3717114f9e59
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/sys_common/backtrace.rs:150:18
[INFO] [stdout]   16:     0x55a378137502 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/panicking.rs:578:5
[INFO] [stdout]   17:     0x55a3780cfb93 - core::panicking::panic_fmt::hfd368e3fbdabea26
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/core/src/panicking.rs:67:14
[INFO] [stdout]   18:     0x55a3780cffe3 - core::result::unwrap_failed::he54eb4b2f125b26f
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/core/src/result.rs:1687:5
[INFO] [stdout]   19:     0x55a3780d1f72 - core::result::Result<T,E>::unwrap::hadd661eac5cea035
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/core/src/result.rs:1089:23
[INFO] [stdout]   20:     0x55a3780d0c41 - chip8vm::display::display::new::h062c287e06f11e3d
[INFO] [stdout]                                at /opt/rustwide/workdir/src/display.rs:15:31
[INFO] [stdout]   21:     0x55a3780d0fc7 - chip8vm::cpu::cpu::new::h7893f550eed00f7e
[INFO] [stdout]                                at /opt/rustwide/workdir/src/cpu.rs:47:22
[INFO] [stdout]   22:     0x55a3780d20dd - chip8vm::cpu::tests::test_new::hcb388b99bd136084
[INFO] [stdout]                                at /opt/rustwide/workdir/src/cpu.rs:430:21
[INFO] [stdout]   23:     0x55a3780d2077 - chip8vm::cpu::tests::test_new::{{closure}}::ha5641bd085d8448f
[INFO] [stdout]                                at /opt/rustwide/workdir/src/cpu.rs:428:19
[INFO] [stdout]   24:     0x55a3780d2835 - core::ops::function::FnOnce::call_once::h373baebfb48f0da4
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   25:     0x55a37810ae7f - core::ops::function::FnOnce::call_once::ha6a70e79f7481a7e
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   26:     0x55a37810ae7f - test::__rust_begin_short_backtrace::hce33033019b61e69
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/test/src/lib.rs:655:18
[INFO] [stdout]   27:     0x55a3780d866c - test::run_test::{{closure}}::h858d3528838ae3e5
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/test/src/lib.rs:646:30
[INFO] [stdout]   28:     0x55a3780d866c - core::ops::function::FnOnce::call_once{{vtable.shim}}::he8ac2b00f01ae79e
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   29:     0x55a378109f56 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h8093d25b522725ef
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/alloc/src/boxed.rs:1973:9
[INFO] [stdout]   30:     0x55a378109f56 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h5c334c204e4a3913
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/core/src/panic/unwind_safe.rs:271:9
[INFO] [stdout]   31:     0x55a378109f56 - std::panicking::try::do_call::ha8b740c7b9478074
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/panicking.rs:485:40
[INFO] [stdout]   32:     0x55a378109f56 - std::panicking::try::h5d34f63d0e41b64e
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/panicking.rs:449:19
[INFO] [stdout]   33:     0x55a378109f56 - std::panic::catch_unwind::hcfbb511e1aa7fc67
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/panic.rs:140:14
[INFO] [stdout]   34:     0x55a378109f56 - test::run_test_in_process::h9abda90f802eaf21
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/test/src/lib.rs:678:27
[INFO] [stdout]   35:     0x55a378109f56 - test::run_test::run_test_inner::{{closure}}::h0f058de91f6c6edf
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/test/src/lib.rs:572:39
[INFO] [stdout]   36:     0x55a3780d2e75 - test::run_test::run_test_inner::{{closure}}::h5ca48a4c59c6c1fb
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/test/src/lib.rs:599:37
[INFO] [stdout]   37:     0x55a3780d2e75 - std::sys_common::backtrace::__rust_begin_short_backtrace::h32bd51e1495d4a33
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/sys_common/backtrace.rs:134:18
[INFO] [stdout]   38:     0x55a3780d83b1 - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::hc086fae9b128b2db
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/thread/mod.rs:526:17
[INFO] [stdout]   39:     0x55a3780d83b1 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hb66571888d270d43
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/core/src/panic/unwind_safe.rs:271:9
[INFO] [stdout]   40:     0x55a3780d83b1 - std::panicking::try::do_call::h4fa2ef4f6e51fecf
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/panicking.rs:485:40
[INFO] [stdout]   41:     0x55a3780d83b1 - std::panicking::try::h1e9e22b8584489b5
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/panicking.rs:449:19
[INFO] [stdout]   42:     0x55a3780d83b1 - std::panic::catch_unwind::h44698a3de0e0769e
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/panic.rs:140:14
[INFO] [stdout]   43:     0x55a3780d83b1 - std::thread::Builder::spawn_unchecked_::{{closure}}::h50153abde3fe239e
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/thread/mod.rs:525:30
[INFO] [stdout]   44:     0x55a3780d83b1 - core::ops::function::FnOnce::call_once{{vtable.shim}}::hbe5bbf6f38394364
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   45:     0x55a37813bf05 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h0d83cb2920a49046
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/alloc/src/boxed.rs:1973:9
[INFO] [stdout]   46:     0x55a37813bf05 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hbe0a008aa7d9ef59
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/alloc/src/boxed.rs:1973:9
[INFO] [stdout]   47:     0x55a37813bf05 - std::sys::unix::thread::Thread::new::thread_start::h3a466996bdf6b1f9
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/sys/unix/thread.rs:108:17
[INFO] [stdout]   48:     0x7f964620cb43 - <unknown>
[INFO] [stdout]   49:     0x7f964629dbb4 - __clone
[INFO] [stdout]   50:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     cpu::tests::test_new
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--bin chip8vm`
[INFO] running `Command { std: "docker" "inspect" "154ff61c185ceeba5893fc9e20a9c11338c58ee7c28c9f6549bb0ba47da54a94", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "154ff61c185ceeba5893fc9e20a9c11338c58ee7c28c9f6549bb0ba47da54a94", kill_on_drop: false }`
[INFO] [stdout] 154ff61c185ceeba5893fc9e20a9c11338c58ee7c28c9f6549bb0ba47da54a94
