[INFO] cloning repository https://github.com/adamtpowell/chip8-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/adamtpowell/chip8-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fadamtpowell%2Fchip8-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fadamtpowell%2Fchip8-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 764c8b2644bd73f5ab4ff1e2f07e7cf82f5c36b4
[INFO] checking adamtpowell/chip8-rust against master#9fa580b1175018b0a276b0bc68f9827a106f7260 for pr-82565
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fadamtpowell%2Fchip8-rust" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/adamtpowell/chip8-rust on toolchain 9fa580b1175018b0a276b0bc68f9827a106f7260
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9fa580b1175018b0a276b0bc68f9827a106f7260" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/adamtpowell/chip8-rust
[INFO] finished tweaking git repo https://github.com/adamtpowell/chip8-rust
[INFO] tweaked toml for git repo https://github.com/adamtpowell/chip8-rust written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/adamtpowell/chip8-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9fa580b1175018b0a276b0bc68f9827a106f7260" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+9fa580b1175018b0a276b0bc68f9827a106f7260" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 0281a64caa9e30ccbb528440d5542f14d40087fa6ee8f2d34d2c5f75d870719d
[INFO] running `Command { std: "docker" "start" "-a" "0281a64caa9e30ccbb528440d5542f14d40087fa6ee8f2d34d2c5f75d870719d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0281a64caa9e30ccbb528440d5542f14d40087fa6ee8f2d34d2c5f75d870719d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0281a64caa9e30ccbb528440d5542f14d40087fa6ee8f2d34d2c5f75d870719d", kill_on_drop: false }`
[INFO] [stdout] 0281a64caa9e30ccbb528440d5542f14d40087fa6ee8f2d34d2c5f75d870719d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+9fa580b1175018b0a276b0bc68f9827a106f7260" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 74273a68e7bcf1da7547dab6f1bd41eb1374f6f2166c464f86f4b94b895a8762
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "74273a68e7bcf1da7547dab6f1bd41eb1374f6f2166c464f86f4b94b895a8762", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.74
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling pkg-config v0.3.18
[INFO] [stderr]    Compiling nix v0.17.0
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking smallvec v1.4.1
[INFO] [stderr]     Checking once_cell v1.4.0
[INFO] [stderr]     Checking downcast-rs v1.2.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.8
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]     Checking scoped-tls v1.0.0
[INFO] [stderr]    Compiling cc v1.0.58
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling libloading v0.6.2
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking dlib v0.4.2
[INFO] [stderr]    Compiling xkbcommon-sys v0.7.4
[INFO] [stderr]    Compiling x11-dl v2.18.5
[INFO] [stderr]     Checking wayland-sys v0.25.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling minifb v0.17.0
[INFO] [stderr]    Compiling cast v0.2.3
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling wayland-scanner v0.25.0
[INFO] [stderr]     Checking raw-window-handle v0.3.3
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking xkb v0.2.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]    Compiling wayland-client v0.25.0
[INFO] [stderr]    Compiling wayland-protocols v0.25.0
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking wayland-commons v0.25.0
[INFO] [stderr]     Checking wayland-cursor v0.25.0
[INFO] [stderr]     Checking chip-8 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `RGBA`
[INFO] [stdout]  --> src/emulator.rs:2:29
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::screen::{Screen, RGBA};
[INFO] [stdout]   |                             ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/emulator.rs:96:16
[INFO] [stdout]    |
[INFO] [stdout] 96 |             if (memory.len() > 0x200 + i) {
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `RGBA`
[INFO] [stdout]  --> src/emulator.rs:2:29
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::screen::{Screen, RGBA};
[INFO] [stdout]   |                             ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/emulator.rs:96:16
[INFO] [stdout]    |
[INFO] [stdout] 96 |             if (memory.len() > 0x200 + i) {
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `inputs`
[INFO] [stdout]    --> src/emulator.rs:113:46
[INFO] [stdout]     |
[INFO] [stdout] 113 |     fn run_instruction<S: Screen>(&mut self, inputs:&HexPad, screen: &mut S) {
[INFO] [stdout]     |                                              ^^^^^^ help: if this is intentional, prefix it with an underscore: `_inputs`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `screen`
[INFO] [stdout]    --> src/emulator.rs:113:62
[INFO] [stdout]     |
[INFO] [stdout] 113 |     fn run_instruction<S: Screen>(&mut self, inputs:&HexPad, screen: &mut S) {
[INFO] [stdout]     |                                                              ^^^^^^ help: if this is intentional, prefix it with an underscore: `_screen`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x1`
[INFO] [stdout]   --> src/screen.rs:16:24
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn line(&mut self, x1: i32, x2: i32, y1: i32, y2: i32, color: RGBA) {
[INFO] [stdout]    |                        ^^ help: if this is intentional, prefix it with an underscore: `_x1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x2`
[INFO] [stdout]   --> src/screen.rs:16:33
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn line(&mut self, x1: i32, x2: i32, y1: i32, y2: i32, color: RGBA) {
[INFO] [stdout]    |                                 ^^ help: if this is intentional, prefix it with an underscore: `_x2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y1`
[INFO] [stdout]   --> src/screen.rs:16:42
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn line(&mut self, x1: i32, x2: i32, y1: i32, y2: i32, color: RGBA) {
[INFO] [stdout]    |                                          ^^ help: if this is intentional, prefix it with an underscore: `_y1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y2`
[INFO] [stdout]   --> src/screen.rs:16:51
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn line(&mut self, x1: i32, x2: i32, y1: i32, y2: i32, color: RGBA) {
[INFO] [stdout]    |                                                   ^^ help: if this is intentional, prefix it with an underscore: `_y2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `color`
[INFO] [stdout]   --> src/screen.rs:16:60
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn line(&mut self, x1: i32, x2: i32, y1: i32, y2: i32, color: RGBA) {
[INFO] [stdout]    |                                                            ^^^^^ help: if this is intentional, prefix it with an underscore: `_color`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `time`
[INFO] [stdout]   --> src/emulator.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 |     time: f32,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `V`
[INFO] [stdout]   --> src/emulator.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 32 |     V: [u8; 16],
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `I`
[INFO] [stdout]   --> src/emulator.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 |     I: u16,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `SP`
[INFO] [stdout]   --> src/emulator.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 |     SP: u8,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `stack`
[INFO] [stdout]   --> src/emulator.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 36 |     stack: [u16; 16],
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `delay`
[INFO] [stdout]   --> src/emulator.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 37 |     delay: u8,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `sound`
[INFO] [stdout]   --> src/emulator.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 38 |     sound: u8,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_n`
[INFO] [stdout]   --> src/emulator.rs:57:8
[INFO] [stdout]    |
[INFO] [stdout] 57 |     fn get_n(&self) -> u8 {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `a`
[INFO] [stdout]  --> src/screen.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     a: u8,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]  --> src/screen.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 |     pub fn new(r: u8, g: u8, b: u8, a: u8) -> Self {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `V` should have a snake case name
[INFO] [stdout]   --> src/emulator.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 32 |     V: [u8; 16],
[INFO] [stdout]    |     ^ help: convert the identifier to snake case (notice the capitalization): `v`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `I` should have a snake case name
[INFO] [stdout]   --> src/emulator.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 |     I: u16,
[INFO] [stdout]    |     ^ help: convert the identifier to snake case (notice the capitalization): `i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `PC` should have a snake case name
[INFO] [stdout]   --> src/emulator.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 34 |     PC: u16,
[INFO] [stdout]    |     ^^ help: convert the identifier to snake case: `pc`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `SP` should have a snake case name
[INFO] [stdout]   --> src/emulator.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 |     SP: u8,
[INFO] [stdout]    |     ^^ help: convert the identifier to snake case: `sp`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `inputs`
[INFO] [stdout]    --> src/emulator.rs:113:46
[INFO] [stdout]     |
[INFO] [stdout] 113 |     fn run_instruction<S: Screen>(&mut self, inputs:&HexPad, screen: &mut S) {
[INFO] [stdout]     |                                              ^^^^^^ help: if this is intentional, prefix it with an underscore: `_inputs`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `screen`
[INFO] [stdout]    --> src/emulator.rs:113:62
[INFO] [stdout]     |
[INFO] [stdout] 113 |     fn run_instruction<S: Screen>(&mut self, inputs:&HexPad, screen: &mut S) {
[INFO] [stdout]     |                                                              ^^^^^^ help: if this is intentional, prefix it with an underscore: `_screen`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x1`
[INFO] [stdout]   --> src/screen.rs:16:24
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn line(&mut self, x1: i32, x2: i32, y1: i32, y2: i32, color: RGBA) {
[INFO] [stdout]    |                        ^^ help: if this is intentional, prefix it with an underscore: `_x1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x2`
[INFO] [stdout]   --> src/screen.rs:16:33
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn line(&mut self, x1: i32, x2: i32, y1: i32, y2: i32, color: RGBA) {
[INFO] [stdout]    |                                 ^^ help: if this is intentional, prefix it with an underscore: `_x2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y1`
[INFO] [stdout]   --> src/screen.rs:16:42
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn line(&mut self, x1: i32, x2: i32, y1: i32, y2: i32, color: RGBA) {
[INFO] [stdout]    |                                          ^^ help: if this is intentional, prefix it with an underscore: `_y1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y2`
[INFO] [stdout]   --> src/screen.rs:16:51
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn line(&mut self, x1: i32, x2: i32, y1: i32, y2: i32, color: RGBA) {
[INFO] [stdout]    |                                                   ^^ help: if this is intentional, prefix it with an underscore: `_y2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `color`
[INFO] [stdout]   --> src/screen.rs:16:60
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn line(&mut self, x1: i32, x2: i32, y1: i32, y2: i32, color: RGBA) {
[INFO] [stdout]    |                                                            ^^^^^ help: if this is intentional, prefix it with an underscore: `_color`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `time`
[INFO] [stdout]   --> src/emulator.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 |     time: f32,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `V`
[INFO] [stdout]   --> src/emulator.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 32 |     V: [u8; 16],
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `I`
[INFO] [stdout]   --> src/emulator.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 |     I: u16,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `SP`
[INFO] [stdout]   --> src/emulator.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 |     SP: u8,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `stack`
[INFO] [stdout]   --> src/emulator.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 36 |     stack: [u16; 16],
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `delay`
[INFO] [stdout]   --> src/emulator.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 37 |     delay: u8,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `sound`
[INFO] [stdout]   --> src/emulator.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 38 |     sound: u8,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_n`
[INFO] [stdout]   --> src/emulator.rs:57:8
[INFO] [stdout]    |
[INFO] [stdout] 57 |     fn get_n(&self) -> u8 {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `a`
[INFO] [stdout]  --> src/screen.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     a: u8,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]  --> src/screen.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 |     pub fn new(r: u8, g: u8, b: u8, a: u8) -> Self {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `V` should have a snake case name
[INFO] [stdout]   --> src/emulator.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 32 |     V: [u8; 16],
[INFO] [stdout]    |     ^ help: convert the identifier to snake case (notice the capitalization): `v`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `I` should have a snake case name
[INFO] [stdout]   --> src/emulator.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 |     I: u16,
[INFO] [stdout]    |     ^ help: convert the identifier to snake case (notice the capitalization): `i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `PC` should have a snake case name
[INFO] [stdout]   --> src/emulator.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 34 |     PC: u16,
[INFO] [stdout]    |     ^^ help: convert the identifier to snake case: `pc`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `SP` should have a snake case name
[INFO] [stdout]   --> src/emulator.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 |     SP: u8,
[INFO] [stdout]    |     ^^ help: convert the identifier to snake case: `sp`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 23 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 23 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 32.12s
[INFO] running `Command { std: "docker" "inspect" "74273a68e7bcf1da7547dab6f1bd41eb1374f6f2166c464f86f4b94b895a8762", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74273a68e7bcf1da7547dab6f1bd41eb1374f6f2166c464f86f4b94b895a8762", kill_on_drop: false }`
[INFO] [stdout] 74273a68e7bcf1da7547dab6f1bd41eb1374f6f2166c464f86f4b94b895a8762