[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] testing adamtpowell/chip8-rust against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fadamtpowell%2Fchip8-rust" "/workspace/builds/worker-40/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-40/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/adamtpowell/chip8-rust on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "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-40/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" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded minifb v0.17.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-40/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-40/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3b7019672012e7132b8e660ffbc90928c572299e6cfe3b1660ef3020dd4b6bd3
[INFO] running `Command { std: "docker" "start" "-a" "3b7019672012e7132b8e660ffbc90928c572299e6cfe3b1660ef3020dd4b6bd3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3b7019672012e7132b8e660ffbc90928c572299e6cfe3b1660ef3020dd4b6bd3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b7019672012e7132b8e660ffbc90928c572299e6cfe3b1660ef3020dd4b6bd3", kill_on_drop: false }`
[INFO] [stdout] 3b7019672012e7132b8e660ffbc90928c572299e6cfe3b1660ef3020dd4b6bd3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-40/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-40/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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] deb37d419f19a8ce891c2f606c69b61b21c096423a8b351a09bcfa683ff0a56b
[INFO] running `Command { std: "docker" "start" "-a" "deb37d419f19a8ce891c2f606c69b61b21c096423a8b351a09bcfa683ff0a56b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.74
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling xml-rs v0.8.3
[INFO] [stderr]    Compiling libloading v0.6.2
[INFO] [stderr]    Compiling pkg-config v0.3.18
[INFO] [stderr]    Compiling nix v0.17.0
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling once_cell v1.4.0
[INFO] [stderr]    Compiling smallvec v1.4.1
[INFO] [stderr]    Compiling ppv-lite86 v0.2.8
[INFO] [stderr]    Compiling downcast-rs v1.2.0
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling scoped-tls v1.0.0
[INFO] [stderr]    Compiling cc v1.0.58
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]    Compiling cast v0.2.3
[INFO] [stderr]    Compiling dlib v0.4.2
[INFO] [stderr]    Compiling xkbcommon-sys v0.7.4
[INFO] [stderr]    Compiling x11-dl v2.18.5
[INFO] [stderr]    Compiling wayland-sys v0.25.0
[INFO] [stderr]    Compiling minifb v0.17.0
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling wayland-scanner v0.25.0
[INFO] [stderr]    Compiling getrandom v0.1.14
[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: 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] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 51.02s
[INFO] running `Command { std: "docker" "inspect" "deb37d419f19a8ce891c2f606c69b61b21c096423a8b351a09bcfa683ff0a56b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "deb37d419f19a8ce891c2f606c69b61b21c096423a8b351a09bcfa683ff0a56b", kill_on_drop: false }`
[INFO] [stdout] deb37d419f19a8ce891c2f606c69b61b21c096423a8b351a09bcfa683ff0a56b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-40/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-40/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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e794da0f55e16fa4217c884e5a27209d1d130c176e6e6a22890b73914b74b1ea
[INFO] running `Command { std: "docker" "start" "-a" "e794da0f55e16fa4217c884e5a27209d1d130c176e6e6a22890b73914b74b1ea", 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: 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] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.93s
[INFO] running `Command { std: "docker" "inspect" "e794da0f55e16fa4217c884e5a27209d1d130c176e6e6a22890b73914b74b1ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e794da0f55e16fa4217c884e5a27209d1d130c176e6e6a22890b73914b74b1ea", kill_on_drop: false }`
[INFO] [stdout] e794da0f55e16fa4217c884e5a27209d1d130c176e6e6a22890b73914b74b1ea
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-40/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-40/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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7bc7f79ea49ce1e82e618d942ceaf819283f8a3747040e651e3d456cb6bfd702
[INFO] running `Command { std: "docker" "start" "-a" "7bc7f79ea49ce1e82e618d942ceaf819283f8a3747040e651e3d456cb6bfd702", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused import: `RGBA`
[INFO] [stderr]  --> src/emulator.rs:2:29
[INFO] [stderr]   |
[INFO] [stderr] 2 | use crate::screen::{Screen, RGBA};
[INFO] [stderr]   |                             ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]   --> src/emulator.rs:96:16
[INFO] [stderr]    |
[INFO] [stderr] 96 |             if (memory.len() > 0x200 + i) {
[INFO] [stderr]    |                ^                        ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 96 -             if (memory.len() > 0x200 + i) {
[INFO] [stderr] 96 +             if memory.len() > 0x200 + i {
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `inputs`
[INFO] [stderr]    --> src/emulator.rs:113:46
[INFO] [stderr]     |
[INFO] [stderr] 113 |     fn run_instruction<S: Screen>(&mut self, inputs:&HexPad, screen: &mut S) {
[INFO] [stderr]     |                                              ^^^^^^ help: if this is intentional, prefix it with an underscore: `_inputs`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `screen`
[INFO] [stderr]    --> src/emulator.rs:113:62
[INFO] [stderr]     |
[INFO] [stderr] 113 |     fn run_instruction<S: Screen>(&mut self, inputs:&HexPad, screen: &mut S) {
[INFO] [stderr]     |                                                              ^^^^^^ help: if this is intentional, prefix it with an underscore: `_screen`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x1`
[INFO] [stderr]   --> src/screen.rs:16:24
[INFO] [stderr]    |
[INFO] [stderr] 16 |     fn line(&mut self, x1: i32, x2: i32, y1: i32, y2: i32, color: RGBA) {
[INFO] [stderr]    |                        ^^ help: if this is intentional, prefix it with an underscore: `_x1`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x2`
[INFO] [stderr]   --> src/screen.rs:16:33
[INFO] [stderr]    |
[INFO] [stderr] 16 |     fn line(&mut self, x1: i32, x2: i32, y1: i32, y2: i32, color: RGBA) {
[INFO] [stderr]    |                                 ^^ help: if this is intentional, prefix it with an underscore: `_x2`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `y1`
[INFO] [stderr]   --> src/screen.rs:16:42
[INFO] [stderr]    |
[INFO] [stderr] 16 |     fn line(&mut self, x1: i32, x2: i32, y1: i32, y2: i32, color: RGBA) {
[INFO] [stderr]    |                                          ^^ help: if this is intentional, prefix it with an underscore: `_y1`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `y2`
[INFO] [stderr]   --> src/screen.rs:16:51
[INFO] [stderr]    |
[INFO] [stderr] 16 |     fn line(&mut self, x1: i32, x2: i32, y1: i32, y2: i32, color: RGBA) {
[INFO] [stderr]    |                                                   ^^ help: if this is intentional, prefix it with an underscore: `_y2`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `color`
[INFO] [stderr]   --> src/screen.rs:16:60
[INFO] [stderr]    |
[INFO] [stderr] 16 |     fn line(&mut self, x1: i32, x2: i32, y1: i32, y2: i32, color: RGBA) {
[INFO] [stderr]    |                                                            ^^^^^ help: if this is intentional, prefix it with an underscore: `_color`
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `time`
[INFO] [stderr]   --> src/emulator.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 30 |     time: f32,
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `V`
[INFO] [stderr]   --> src/emulator.rs:32:5
[INFO] [stderr]    |
[INFO] [stderr] 32 |     V: [u8; 16],
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `I`
[INFO] [stderr]   --> src/emulator.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 |     I: u16,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `SP`
[INFO] [stderr]   --> src/emulator.rs:35:5
[INFO] [stderr]    |
[INFO] [stderr] 35 |     SP: u8,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `stack`
[INFO] [stderr]   --> src/emulator.rs:36:5
[INFO] [stderr]    |
[INFO] [stderr] 36 |     stack: [u16; 16],
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `delay`
[INFO] [stderr]   --> src/emulator.rs:37:5
[INFO] [stderr]    |
[INFO] [stderr] 37 |     delay: u8,
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `sound`
[INFO] [stderr]   --> src/emulator.rs:38:5
[INFO] [stderr]    |
[INFO] [stderr] 38 |     sound: u8,
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `get_n`
[INFO] [stderr]   --> src/emulator.rs:57:8
[INFO] [stderr]    |
[INFO] [stderr] 57 |     fn get_n(&self) -> u8 {
[INFO] [stderr]    |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `a`
[INFO] [stderr]  --> src/screen.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 |     a: u8,
[INFO] [stderr]   |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]  --> src/screen.rs:9:12
[INFO] [stderr]   |
[INFO] [stderr] 9 |     pub fn new(r: u8, g: u8, b: u8, a: u8) -> Self {
[INFO] [stderr]   |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `V` should have a snake case name
[INFO] [stderr]   --> src/emulator.rs:32:5
[INFO] [stderr]    |
[INFO] [stderr] 32 |     V: [u8; 16],
[INFO] [stderr]    |     ^ help: convert the identifier to snake case (notice the capitalization): `v`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `I` should have a snake case name
[INFO] [stderr]   --> src/emulator.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 |     I: u16,
[INFO] [stderr]    |     ^ help: convert the identifier to snake case (notice the capitalization): `i`
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `PC` should have a snake case name
[INFO] [stderr]   --> src/emulator.rs:34:5
[INFO] [stderr]    |
[INFO] [stderr] 34 |     PC: u16,
[INFO] [stderr]    |     ^^ help: convert the identifier to snake case: `pc`
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `SP` should have a snake case name
[INFO] [stderr]   --> src/emulator.rs:35:5
[INFO] [stderr]    |
[INFO] [stderr] 35 |     SP: u8,
[INFO] [stderr]    |     ^^ help: convert the identifier to snake case: `sp`
[INFO] [stderr] 
[INFO] [stderr] warning: `chip-8` (bin "chip-8" test) generated 23 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.51s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/chip_8-d4b633783494a0f2)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "7bc7f79ea49ce1e82e618d942ceaf819283f8a3747040e651e3d456cb6bfd702", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7bc7f79ea49ce1e82e618d942ceaf819283f8a3747040e651e3d456cb6bfd702", kill_on_drop: false }`
[INFO] [stdout] 7bc7f79ea49ce1e82e618d942ceaf819283f8a3747040e651e3d456cb6bfd702