[INFO] updating cached repository https://github.com/rybergy/coolboy
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] [stderr] From https://github.com/rybergy/coolboy
[INFO] [stderr]    e9f9055..e44e445  master     -> master
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e44e445cb844eec4b7fef69c66d2b952e548145a
[INFO] checking rybergy/coolboy against try#d27c6c6a469a28343396a8f3ac1c9d403aabda69 for pr-66037
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frybergy%2Fcoolboy" "/workspace/builds/worker-3/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rybergy/coolboy on toolchain d27c6c6a469a28343396a8f3ac1c9d403aabda69
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d27c6c6a469a28343396a8f3ac1c9d403aabda69" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/rybergy/coolboy
[INFO] finished tweaking git repo https://github.com/rybergy/coolboy
[INFO] tweaked toml for git repo https://github.com/rybergy/coolboy written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/rybergy/coolboy already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d27c6c6a469a28343396a8f3ac1c9d403aabda69" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+d27c6c6a469a28343396a8f3ac1c9d403aabda69" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 0742de4b8abd79cf1e97832c778fe3786aa0c63edbeb8b5a4e1444c1bd79115a
[INFO] running `"docker" "start" "-a" "0742de4b8abd79cf1e97832c778fe3786aa0c63edbeb8b5a4e1444c1bd79115a"`
[INFO] [stderr]     Checking sdl2 v0.32.2
[INFO] [stderr]     Checking coolboy v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused imports: `Duration`, `SystemTime`
[INFO] [stderr]   --> src/emulator/mod.rs:12:17
[INFO] [stderr]    |
[INFO] [stderr] 12 | use std::time::{Duration, SystemTime};
[INFO] [stderr]    |                 ^^^^^^^^  ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Texture`
[INFO] [stderr]  --> src/graphics/mod.rs:8:28
[INFO] [stderr]   |
[INFO] [stderr] 8 | use sdl2::render::{Canvas, Texture, TextureCreator};
[INFO] [stderr]   |                            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `PixelFormatEnum`
[INFO] [stderr]   --> src/graphics/mod.rs:10:27
[INFO] [stderr]    |
[INFO] [stderr] 10 | use sdl2::pixels::{Color, PixelFormatEnum};
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `SystemTime`
[INFO] [stderr]  --> src/main.rs:9:27
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::time::{Duration, SystemTime};
[INFO] [stderr]   |                           ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `texture`
[INFO] [stderr]   --> src/main.rs:20:13
[INFO] [stderr]    |
[INFO] [stderr] 20 |     let mut texture = texture_creator.create_texture_streaming(
[INFO] [stderr]    |             ^^^^^^^ help: consider prefixing with an underscore: `_texture`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `emulator`
[INFO] [stderr]   --> src/main.rs:26:13
[INFO] [stderr]    |
[INFO] [stderr] 26 |     let mut emulator = Emulator::from_file("roms/tetris.gb").map_err(|e| e.to_string())?;
[INFO] [stderr]    |             ^^^^^^^^ help: consider prefixing with an underscore: `_emulator`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `update`
[INFO] [stderr]   --> src/emulator/mod.rs:29:30
[INFO] [stderr]    |
[INFO] [stderr] 29 |     pub fn run<F>(&mut self, update: F) 
[INFO] [stderr]    |                              ^^^^^^ help: consider prefixing with an underscore: `_update`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `memory`
[INFO] [stderr]   --> src/emulator/cpu.rs:19:27
[INFO] [stderr]    |
[INFO] [stderr] 19 |     pub fn execute(&self, memory: &mut Memory) -> i32 {
[INFO] [stderr]    |                           ^^^^^^ help: consider prefixing with an underscore: `_memory`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `emu`
[INFO] [stderr]   --> src/graphics/mod.rs:47:33
[INFO] [stderr]    |
[INFO] [stderr] 47 |     pub fn update_buffer(&self, emu: &Emulator) {
[INFO] [stderr]    |                                 ^^^ help: consider prefixing with an underscore: `_emu`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:20:9
[INFO] [stderr]    |
[INFO] [stderr] 20 |     let mut texture = texture_creator.create_texture_streaming(
[INFO] [stderr]    |         ----^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:26:9
[INFO] [stderr]    |
[INFO] [stderr] 26 |     let mut emulator = Emulator::from_file("roms/tetris.gb").map_err(|e| e.to_string())?;
[INFO] [stderr]    |         ----^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `data`
[INFO] [stderr]  --> src/emulator/cartridge.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 |     data: Vec<u8>,
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `empty`
[INFO] [stderr]   --> src/emulator/cartridge.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     pub fn empty() -> Cartridge {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `registers`
[INFO] [stderr]  --> src/emulator/cpu.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 |     registers: Registers,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `pc`
[INFO] [stderr]  --> src/emulator/cpu.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 |     pc: u16,
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `sp`
[INFO] [stderr]  --> src/emulator/cpu.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     sp: u16,
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `execute`
[INFO] [stderr]   --> src/emulator/cpu.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 |     pub fn execute(&self, memory: &mut Memory) -> i32 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `initialized`
[INFO] [stderr]   --> src/emulator/registers.rs:47:5
[INFO] [stderr]    |
[INFO] [stderr] 47 |     pub fn initialized() -> Registers {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `init`
[INFO] [stderr]   --> src/emulator/registers.rs:53:5
[INFO] [stderr]    |
[INFO] [stderr] 53 |     fn init(&mut self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `af`
[INFO] [stderr]   --> src/emulator/registers.rs:60:5
[INFO] [stderr]    |
[INFO] [stderr] 60 |     pub fn af(&self) -> u16 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `bc`
[INFO] [stderr]   --> src/emulator/registers.rs:65:5
[INFO] [stderr]    |
[INFO] [stderr] 65 |     pub fn bc(&self) -> u16 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `de`
[INFO] [stderr]   --> src/emulator/registers.rs:70:5
[INFO] [stderr]    |
[INFO] [stderr] 70 |     pub fn de(&self) -> u16 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `hl`
[INFO] [stderr]   --> src/emulator/registers.rs:75:5
[INFO] [stderr]    |
[INFO] [stderr] 75 |     pub fn hl(&self) -> u16 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `set_af`
[INFO] [stderr]   --> src/emulator/registers.rs:80:5
[INFO] [stderr]    |
[INFO] [stderr] 80 |     pub fn set_af(&mut self, value: u16) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `set_bc`
[INFO] [stderr]   --> src/emulator/registers.rs:85:5
[INFO] [stderr]    |
[INFO] [stderr] 85 |     pub fn set_bc(&mut self, value: u16) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `set_de`
[INFO] [stderr]   --> src/emulator/registers.rs:90:5
[INFO] [stderr]    |
[INFO] [stderr] 90 |     pub fn set_de(&mut self, value: u16) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `set_hl`
[INFO] [stderr]   --> src/emulator/registers.rs:95:5
[INFO] [stderr]    |
[INFO] [stderr] 95 |     pub fn set_hl(&mut self, value: u16) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `cartridge`
[INFO] [stderr]   --> src/emulator/mod.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     cartridge: Cartridge,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `cpu`
[INFO] [stderr]   --> src/emulator/mod.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     cpu: Cpu,
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `memory`
[INFO] [stderr]   --> src/emulator/mod.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     memory: Memory,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `run`
[INFO] [stderr]   --> src/emulator/mod.rs:29:5
[INFO] [stderr]    |
[INFO] [stderr] 29 | /     pub fn run<F>(&mut self, update: F) 
[INFO] [stderr] 30 | |         where F: FnMut(Self) {
[INFO] [stderr] 31 | |         
[INFO] [stderr] 32 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `update`
[INFO] [stderr]   --> src/emulator/mod.rs:34:5
[INFO] [stderr]    |
[INFO] [stderr] 34 |     fn update(&mut self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `buffer`
[INFO] [stderr]   --> src/graphics/mod.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     buffer: Vec<u32>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `rng`
[INFO] [stderr]   --> src/graphics/mod.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 |     rng: ThreadRng, // TEMP: random pixels
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `update_buffer`
[INFO] [stderr]   --> src/graphics/mod.rs:47:5
[INFO] [stderr]    |
[INFO] [stderr] 47 |     pub fn update_buffer(&self, emu: &Emulator) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Duration`, `SystemTime`
[INFO] [stderr]   --> src/emulator/mod.rs:12:17
[INFO] [stderr]    |
[INFO] [stderr] 12 | use std::time::{Duration, SystemTime};
[INFO] [stderr]    |                 ^^^^^^^^  ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Texture`
[INFO] [stderr]  --> src/graphics/mod.rs:8:28
[INFO] [stderr]   |
[INFO] [stderr] 8 | use sdl2::render::{Canvas, Texture, TextureCreator};
[INFO] [stderr]   |                            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `PixelFormatEnum`
[INFO] [stderr]   --> src/graphics/mod.rs:10:27
[INFO] [stderr]    |
[INFO] [stderr] 10 | use sdl2::pixels::{Color, PixelFormatEnum};
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `SystemTime`
[INFO] [stderr]  --> src/main.rs:9:27
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::time::{Duration, SystemTime};
[INFO] [stderr]   |                           ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `texture`
[INFO] [stderr]   --> src/main.rs:20:13
[INFO] [stderr]    |
[INFO] [stderr] 20 |     let mut texture = texture_creator.create_texture_streaming(
[INFO] [stderr]    |             ^^^^^^^ help: consider prefixing with an underscore: `_texture`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `emulator`
[INFO] [stderr]   --> src/main.rs:26:13
[INFO] [stderr]    |
[INFO] [stderr] 26 |     let mut emulator = Emulator::from_file("roms/tetris.gb").map_err(|e| e.to_string())?;
[INFO] [stderr]    |             ^^^^^^^^ help: consider prefixing with an underscore: `_emulator`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `update`
[INFO] [stderr]   --> src/emulator/mod.rs:29:30
[INFO] [stderr]    |
[INFO] [stderr] 29 |     pub fn run<F>(&mut self, update: F) 
[INFO] [stderr]    |                              ^^^^^^ help: consider prefixing with an underscore: `_update`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `memory`
[INFO] [stderr]   --> src/emulator/cpu.rs:19:27
[INFO] [stderr]    |
[INFO] [stderr] 19 |     pub fn execute(&self, memory: &mut Memory) -> i32 {
[INFO] [stderr]    |                           ^^^^^^ help: consider prefixing with an underscore: `_memory`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `emu`
[INFO] [stderr]   --> src/graphics/mod.rs:47:33
[INFO] [stderr]    |
[INFO] [stderr] 47 |     pub fn update_buffer(&self, emu: &Emulator) {
[INFO] [stderr]    |                                 ^^^ help: consider prefixing with an underscore: `_emu`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:20:9
[INFO] [stderr]    |
[INFO] [stderr] 20 |     let mut texture = texture_creator.create_texture_streaming(
[INFO] [stderr]    |         ----^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:26:9
[INFO] [stderr]    |
[INFO] [stderr] 26 |     let mut emulator = Emulator::from_file("roms/tetris.gb").map_err(|e| e.to_string())?;
[INFO] [stderr]    |         ----^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `data`
[INFO] [stderr]  --> src/emulator/cartridge.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 |     data: Vec<u8>,
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `empty`
[INFO] [stderr]   --> src/emulator/cartridge.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     pub fn empty() -> Cartridge {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `registers`
[INFO] [stderr]  --> src/emulator/cpu.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 |     registers: Registers,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `pc`
[INFO] [stderr]  --> src/emulator/cpu.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 |     pc: u16,
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `sp`
[INFO] [stderr]  --> src/emulator/cpu.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     sp: u16,
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `execute`
[INFO] [stderr]   --> src/emulator/cpu.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 |     pub fn execute(&self, memory: &mut Memory) -> i32 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `initialized`
[INFO] [stderr]   --> src/emulator/registers.rs:47:5
[INFO] [stderr]    |
[INFO] [stderr] 47 |     pub fn initialized() -> Registers {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `init`
[INFO] [stderr]   --> src/emulator/registers.rs:53:5
[INFO] [stderr]    |
[INFO] [stderr] 53 |     fn init(&mut self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `af`
[INFO] [stderr]   --> src/emulator/registers.rs:60:5
[INFO] [stderr]    |
[INFO] [stderr] 60 |     pub fn af(&self) -> u16 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `bc`
[INFO] [stderr]   --> src/emulator/registers.rs:65:5
[INFO] [stderr]    |
[INFO] [stderr] 65 |     pub fn bc(&self) -> u16 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `de`
[INFO] [stderr]   --> src/emulator/registers.rs:70:5
[INFO] [stderr]    |
[INFO] [stderr] 70 |     pub fn de(&self) -> u16 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `hl`
[INFO] [stderr]   --> src/emulator/registers.rs:75:5
[INFO] [stderr]    |
[INFO] [stderr] 75 |     pub fn hl(&self) -> u16 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `set_af`
[INFO] [stderr]   --> src/emulator/registers.rs:80:5
[INFO] [stderr]    |
[INFO] [stderr] 80 |     pub fn set_af(&mut self, value: u16) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `set_bc`
[INFO] [stderr]   --> src/emulator/registers.rs:85:5
[INFO] [stderr]    |
[INFO] [stderr] 85 |     pub fn set_bc(&mut self, value: u16) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `set_de`
[INFO] [stderr]   --> src/emulator/registers.rs:90:5
[INFO] [stderr]    |
[INFO] [stderr] 90 |     pub fn set_de(&mut self, value: u16) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `set_hl`
[INFO] [stderr]   --> src/emulator/registers.rs:95:5
[INFO] [stderr]    |
[INFO] [stderr] 95 |     pub fn set_hl(&mut self, value: u16) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `cartridge`
[INFO] [stderr]   --> src/emulator/mod.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     cartridge: Cartridge,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `cpu`
[INFO] [stderr]   --> src/emulator/mod.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     cpu: Cpu,
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `memory`
[INFO] [stderr]   --> src/emulator/mod.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     memory: Memory,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `run`
[INFO] [stderr]   --> src/emulator/mod.rs:29:5
[INFO] [stderr]    |
[INFO] [stderr] 29 | /     pub fn run<F>(&mut self, update: F) 
[INFO] [stderr] 30 | |         where F: FnMut(Self) {
[INFO] [stderr] 31 | |         
[INFO] [stderr] 32 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `update`
[INFO] [stderr]   --> src/emulator/mod.rs:34:5
[INFO] [stderr]    |
[INFO] [stderr] 34 |     fn update(&mut self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `buffer`
[INFO] [stderr]   --> src/graphics/mod.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     buffer: Vec<u32>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `rng`
[INFO] [stderr]   --> src/graphics/mod.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 |     rng: ThreadRng, // TEMP: random pixels
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `update_buffer`
[INFO] [stderr]   --> src/graphics/mod.rs:47:5
[INFO] [stderr]    |
[INFO] [stderr] 47 |     pub fn update_buffer(&self, emu: &Emulator) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.11s
[INFO] running `"docker" "inspect" "0742de4b8abd79cf1e97832c778fe3786aa0c63edbeb8b5a4e1444c1bd79115a"`
[INFO] running `"docker" "rm" "-f" "0742de4b8abd79cf1e97832c778fe3786aa0c63edbeb8b5a4e1444c1bd79115a"`
[INFO] [stdout] 0742de4b8abd79cf1e97832c778fe3786aa0c63edbeb8b5a4e1444c1bd79115a