[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] building adamtpowell/chip8-rust against try#9a3ef2cd3ecaae3c6ef59768612837d797602a6d for pr-137044-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fadamtpowell%2Fchip8-rust" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/adamtpowell/chip8-rust on toolchain 9a3ef2cd3ecaae3c6ef59768612837d797602a6d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9a3ef2cd3ecaae3c6ef59768612837d797602a6d" "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-4-tc2/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: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9a3ef2cd3ecaae3c6ef59768612837d797602a6d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+9a3ef2cd3ecaae3c6ef59768612837d797602a6d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 35773f2979ce02773fa29e6d2419e884dd30f2dd77fd9f5f33e5155f7b393361
[INFO] running `Command { std: "docker" "start" "-a" "35773f2979ce02773fa29e6d2419e884dd30f2dd77fd9f5f33e5155f7b393361", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "35773f2979ce02773fa29e6d2419e884dd30f2dd77fd9f5f33e5155f7b393361", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "35773f2979ce02773fa29e6d2419e884dd30f2dd77fd9f5f33e5155f7b393361", kill_on_drop: false }`
[INFO] [stdout] 35773f2979ce02773fa29e6d2419e884dd30f2dd77fd9f5f33e5155f7b393361
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=forbid" "-e" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+9a3ef2cd3ecaae3c6ef59768612837d797602a6d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8971868182ae6071975bad081e433acaf88d7b9758ce3a47897d373cd00d382b
[INFO] running `Command { std: "docker" "start" "-a" "8971868182ae6071975bad081e433acaf88d7b9758ce3a47897d373cd00d382b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.74
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling xml-rs v0.8.3
[INFO] [stderr]    Compiling libloading v0.6.2
[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]    Compiling void v1.0.2
[INFO] [stderr]    Compiling smallvec v1.4.1
[INFO] [stderr]    Compiling once_cell v1.4.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.8
[INFO] [stderr]    Compiling scoped-tls v1.0.0
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling downcast-rs v1.2.0
[INFO] [stderr]    Compiling cc v1.0.58
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling xkbcommon-sys v0.7.4
[INFO] [stderr]    Compiling x11-dl v2.18.5
[INFO] [stderr]    Compiling dlib v0.4.2
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling wayland-sys v0.25.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling cast v0.2.3
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling wayland-scanner v0.25.0
[INFO] [stderr]    Compiling minifb v0.17.0
[INFO] [stderr]    Compiling raw-window-handle v0.3.3
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling xkb v0.2.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling wayland-client v0.25.0
[INFO] [stderr]    Compiling wayland-protocols v0.25.0
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling tempfile v3.1.0
[INFO] [stderr]    Compiling wayland-commons v0.25.0
[INFO] [stderr]    Compiling wayland-cursor v0.25.0
[INFO] [stderr]    Compiling 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]    |                ^                        ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 96 -             if (memory.len() > 0x200 + i) {
[INFO] [stdout] 96 +             if memory.len() > 0x200 + i {
[INFO] [stdout]    |
[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: multiple fields are never read
[INFO] [stdout]   --> src/emulator.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct HexPad {
[INFO] [stdout]    |            ------ fields in this struct
[INFO] [stdout] 11 |     pub zero: bool,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 12 |     pub one: bool,
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 13 |     pub two: bool,
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 14 |     pub three: bool,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 15 |     pub four: bool,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 16 |     pub five: bool,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 17 |     pub six: bool,
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 18 |     pub seven: bool,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 19 |     pub eight: bool,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 20 |     pub nine: bool,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 21 |     pub a: bool,
[INFO] [stdout]    |         ^
[INFO] [stdout] 22 |     pub b: bool,
[INFO] [stdout]    |         ^
[INFO] [stdout] 23 |     pub c: bool,
[INFO] [stdout]    |         ^
[INFO] [stdout] 24 |     pub d: bool,
[INFO] [stdout]    |         ^
[INFO] [stdout] 25 |     pub e: bool,
[INFO] [stdout]    |         ^
[INFO] [stdout] 26 |     pub f: bool,
[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/emulator.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub struct Emulator {
[INFO] [stdout]    |            -------- fields in this struct
[INFO] [stdout] 30 |     time: f32,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 31 |     memory: [u8; 4096],
[INFO] [stdout] 32 |     V: [u8; 16],
[INFO] [stdout]    |     ^
[INFO] [stdout] 33 |     I: u16,
[INFO] [stdout]    |     ^
[INFO] [stdout] 34 |     PC: u16,
[INFO] [stdout] 35 |     SP: u8,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 36 |     stack: [u16; 16],
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 37 |     delay: u8,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 38 |     sound: u8,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_n` is never used
[INFO] [stdout]   --> src/emulator.rs:57:8
[INFO] [stdout]    |
[INFO] [stdout] 53 | impl Chip8Instruction {
[INFO] [stdout]    | --------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 57 |     fn get_n(&self) -> u8 {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `a` is never read
[INFO] [stdout]  --> src/screen.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct RGBA {
[INFO] [stdout]   |            ---- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 5 |     a: u8,
[INFO] [stdout]   |     ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]  --> src/screen.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | impl RGBA {
[INFO] [stdout]   | --------- associated function in this implementation
[INFO] [stdout] 9 |     pub fn new(r: u8, g: u8, b: u8, a: u8) -> Self {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `write_pixel` and `line` are never used
[INFO] [stdout]   --> src/screen.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub trait Screen {
[INFO] [stdout]    |           ------ methods in this trait
[INFO] [stdout] 15 |     fn write_pixel(&mut self, x: u32, y: u32, color: &RGBA);
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 16 |     fn line(&mut self, x1: i32, x2: i32, y1: i32, y2: i32, color: RGBA) {
[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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 28.28s
[INFO] running `Command { std: "docker" "inspect" "8971868182ae6071975bad081e433acaf88d7b9758ce3a47897d373cd00d382b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8971868182ae6071975bad081e433acaf88d7b9758ce3a47897d373cd00d382b", kill_on_drop: false }`
[INFO] [stdout] 8971868182ae6071975bad081e433acaf88d7b9758ce3a47897d373cd00d382b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=forbid" "-e" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+9a3ef2cd3ecaae3c6ef59768612837d797602a6d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 15f9edef015d4e2a9ca4296ca57ede6f5a02f8287d27c09b36b9ca4294456bd6
[INFO] running `Command { std: "docker" "start" "-a" "15f9edef015d4e2a9ca4296ca57ede6f5a02f8287d27c09b36b9ca4294456bd6", kill_on_drop: false }`
[INFO] [stderr]    Compiling 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]    |                ^                        ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 96 -             if (memory.len() > 0x200 + i) {
[INFO] [stdout] 96 +             if memory.len() > 0x200 + i {
[INFO] [stdout]    |
[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: multiple fields are never read
[INFO] [stdout]   --> src/emulator.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct HexPad {
[INFO] [stdout]    |            ------ fields in this struct
[INFO] [stdout] 11 |     pub zero: bool,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 12 |     pub one: bool,
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 13 |     pub two: bool,
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 14 |     pub three: bool,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 15 |     pub four: bool,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 16 |     pub five: bool,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 17 |     pub six: bool,
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 18 |     pub seven: bool,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 19 |     pub eight: bool,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 20 |     pub nine: bool,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 21 |     pub a: bool,
[INFO] [stdout]    |         ^
[INFO] [stdout] 22 |     pub b: bool,
[INFO] [stdout]    |         ^
[INFO] [stdout] 23 |     pub c: bool,
[INFO] [stdout]    |         ^
[INFO] [stdout] 24 |     pub d: bool,
[INFO] [stdout]    |         ^
[INFO] [stdout] 25 |     pub e: bool,
[INFO] [stdout]    |         ^
[INFO] [stdout] 26 |     pub f: bool,
[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/emulator.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub struct Emulator {
[INFO] [stdout]    |            -------- fields in this struct
[INFO] [stdout] 30 |     time: f32,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 31 |     memory: [u8; 4096],
[INFO] [stdout] 32 |     V: [u8; 16],
[INFO] [stdout]    |     ^
[INFO] [stdout] 33 |     I: u16,
[INFO] [stdout]    |     ^
[INFO] [stdout] 34 |     PC: u16,
[INFO] [stdout] 35 |     SP: u8,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 36 |     stack: [u16; 16],
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 37 |     delay: u8,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 38 |     sound: u8,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_n` is never used
[INFO] [stdout]   --> src/emulator.rs:57:8
[INFO] [stdout]    |
[INFO] [stdout] 53 | impl Chip8Instruction {
[INFO] [stdout]    | --------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 57 |     fn get_n(&self) -> u8 {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `a` is never read
[INFO] [stdout]  --> src/screen.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct RGBA {
[INFO] [stdout]   |            ---- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 5 |     a: u8,
[INFO] [stdout]   |     ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]  --> src/screen.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | impl RGBA {
[INFO] [stdout]   | --------- associated function in this implementation
[INFO] [stdout] 9 |     pub fn new(r: u8, g: u8, b: u8, a: u8) -> Self {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `write_pixel` and `line` are never used
[INFO] [stdout]   --> src/screen.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub trait Screen {
[INFO] [stdout]    |           ------ methods in this trait
[INFO] [stdout] 15 |     fn write_pixel(&mut self, x: u32, y: u32, color: &RGBA);
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 16 |     fn line(&mut self, x1: i32, x2: i32, y1: i32, y2: i32, color: RGBA) {
[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] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.47s
[INFO] running `Command { std: "docker" "inspect" "15f9edef015d4e2a9ca4296ca57ede6f5a02f8287d27c09b36b9ca4294456bd6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15f9edef015d4e2a9ca4296ca57ede6f5a02f8287d27c09b36b9ca4294456bd6", kill_on_drop: false }`
[INFO] [stdout] 15f9edef015d4e2a9ca4296ca57ede6f5a02f8287d27c09b36b9ca4294456bd6