[INFO] cloning repository https://github.com/Thordreck/chust8
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Thordreck/chust8" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FThordreck%2Fchust8", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FThordreck%2Fchust8'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2bf50627b9e8366ef7c82329c4fa6960e904dd70
[INFO] checking Thordreck/chust8 against beta-2020-07-24 for pr-75494-beta
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FThordreck%2Fchust8" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Thordreck/chust8 on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Thordreck/chust8
[INFO] finished tweaking git repo https://github.com/Thordreck/chust8
[INFO] tweaked toml for git repo https://github.com/Thordreck/chust8 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/Thordreck/chust8 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 03a086aca16f9c71f25e1f2b20f40eca8640f2e6dac90d898b8969a81d1598fb
[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" "03a086aca16f9c71f25e1f2b20f40eca8640f2e6dac90d898b8969a81d1598fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "03a086aca16f9c71f25e1f2b20f40eca8640f2e6dac90d898b8969a81d1598fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "03a086aca16f9c71f25e1f2b20f40eca8640f2e6dac90d898b8969a81d1598fb", kill_on_drop: false }`
[INFO] [stdout] 03a086aca16f9c71f25e1f2b20f40eca8640f2e6dac90d898b8969a81d1598fb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cbe5884ee8dbae8b57170d5b3f4c64a897a86075fe5fdeed3f39363d1a380d5a
[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" "cbe5884ee8dbae8b57170d5b3f4c64a897a86075fe5fdeed3f39363d1a380d5a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]    Compiling proc-macro2 v1.0.14
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.23
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.8
[INFO] [stderr]    Compiling sdl2 v0.34.0
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling sdl2-sys v0.34.0
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling quote v1.0.6
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]    Compiling strum_macros v0.18.0
[INFO] [stderr]     Checking chust8 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `KeyboardState`
[INFO] [stdout]  --> src/input.rs:2:33
[INFO] [stdout]   |
[INFO] [stdout] 2 | use sdl2::keyboard::{ Scancode, KeyboardState };
[INFO] [stdout]   |                                 ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `KeyboardState`
[INFO] [stdout]  --> src/input.rs:2:33
[INFO] [stdout]   |
[INFO] [stdout] 2 | use sdl2::keyboard::{ Scancode, KeyboardState };
[INFO] [stdout]   |                                 ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sdl2::pixels::Color`
[INFO] [stdout]  --> src/display.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use sdl2::pixels::Color;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `WindowContext`
[INFO] [stdout]  --> src/display.rs:4:28
[INFO] [stdout]   |
[INFO] [stdout] 4 | use sdl2::video::{ Window, WindowContext };
[INFO] [stdout]   |                            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `TextureCreator`
[INFO] [stdout]  --> src/display.rs:5:21
[INFO] [stdout]   |
[INFO] [stdout] 5 | use sdl2::render::{ TextureCreator, Canvas };
[INFO] [stdout]   |                     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `PixelGrid`
[INFO] [stdout]   --> src/display.rs:16:25
[INFO] [stdout]    |
[INFO] [stdout] 16 | use grid::{ GridEditor, PixelGrid };
[INFO] [stdout]    |                         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sdl2::pixels::Color`
[INFO] [stdout]  --> src/display.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use sdl2::pixels::Color;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `WindowContext`
[INFO] [stdout]  --> src/display.rs:4:28
[INFO] [stdout]   |
[INFO] [stdout] 4 | use sdl2::video::{ Window, WindowContext };
[INFO] [stdout]   |                            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `TextureCreator`
[INFO] [stdout]  --> src/display.rs:5:21
[INFO] [stdout]   |
[INFO] [stdout] 5 | use sdl2::render::{ TextureCreator, Canvas };
[INFO] [stdout]   |                     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `PixelGrid`
[INFO] [stdout]   --> src/display.rs:16:25
[INFO] [stdout]    |
[INFO] [stdout] 16 | use grid::{ GridEditor, PixelGrid };
[INFO] [stdout]    |                         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `opcode`
[INFO] [stdout]    --> src/interpreter.rs:105:13
[INFO] [stdout]     |
[INFO] [stdout] 105 |         let opcode = OpCode::new(msb, lsb)?;
[INFO] [stdout]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_opcode`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/interpreter.rs:54:13
[INFO] [stdout]    |
[INFO] [stdout] 54 |         let mut interpreter = Interpreter
[INFO] [stdout]    |             ----^^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `pc`
[INFO] [stdout]   --> src/interpreter.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pc             : ProgramCounter,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `context`
[INFO] [stdout]   --> src/interpreter.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 |     context        : Sdl,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `display`
[INFO] [stdout]   --> src/interpreter.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 |     display        : Display,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `keypad`
[INFO] [stdout]   --> src/interpreter.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 |     keypad         : Keypad,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `speakers`
[INFO] [stdout]   --> src/interpreter.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 |     speakers       : Speakers,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `i_register`
[INFO] [stdout]   --> src/interpreter.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 |     i_register     : IRegister,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `data_registers`
[INFO] [stdout]   --> src/interpreter.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 |     data_registers : AllDataRegisters,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `stack`
[INFO] [stdout]   --> src/interpreter.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 |     stack          : Stack,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `cpu_limiter`
[INFO] [stdout]   --> src/interpreter.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 29 |     cpu_limiter    : RateLimiter,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `timer_limiter`
[INFO] [stdout]   --> src/interpreter.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 |     timer_limiter  : RateLimiter,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `delay_timer`
[INFO] [stdout]   --> src/interpreter.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 31 |     delay_timer    : Timer,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `sound_timer`
[INFO] [stdout]   --> src/interpreter.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 32 |     sound_timer    : Timer,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `cpu_step`
[INFO] [stdout]    --> src/interpreter.rs:101:8
[INFO] [stdout]     |
[INFO] [stdout] 101 |     fn cpu_step(&mut self) -> Result<(), String>
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `tick_timers`
[INFO] [stdout]    --> src/interpreter.rs:115:8
[INFO] [stdout]     |
[INFO] [stdout] 115 |     fn tick_timers(&mut self) -> Result<(), String>
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `extract_opcode_bytes`
[INFO] [stdout]    --> src/interpreter.rs:123:8
[INFO] [stdout]     |
[INFO] [stdout] 123 |     fn extract_opcode_bytes(&mut self) -> Result<(u8, u8), String>
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `status`
[INFO] [stdout]   --> src/timer.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 |     status : TimerStatus,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `texture_creator`
[INFO] [stdout]   --> src/display/tileset.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 |     texture_creator : TextureCreator<WindowContext>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 24 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mutex`
[INFO] [stdout]    --> src/audio.rs:149:13
[INFO] [stdout]     |
[INFO] [stdout] 149 |         let mutex = test_lock()?;
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_mutex`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mutex`
[INFO] [stdout]   --> src/input.rs:68:13
[INFO] [stdout]    |
[INFO] [stdout] 68 |         let mutex = test_lock()?;
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_mutex`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `opcode`
[INFO] [stdout]    --> src/interpreter.rs:105:13
[INFO] [stdout]     |
[INFO] [stdout] 105 |         let opcode = OpCode::new(msb, lsb)?;
[INFO] [stdout]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_opcode`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mutex`
[INFO] [stdout]    --> src/interpreter.rs:146:13
[INFO] [stdout]     |
[INFO] [stdout] 146 |         let mutex = test_lock()?;
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_mutex`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mutex`
[INFO] [stdout]    --> src/interpreter.rs:160:13
[INFO] [stdout]     |
[INFO] [stdout] 160 |         let mutex = test_lock()?;
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_mutex`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lock`
[INFO] [stdout]   --> src/display/tileset.rs:88:13
[INFO] [stdout]    |
[INFO] [stdout] 88 |         let lock = test_lock()?;
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_lock`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mutex`
[INFO] [stdout]    --> src/display.rs:129:13
[INFO] [stdout]     |
[INFO] [stdout] 129 |         let mutex = test_lock()?;
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_mutex`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `display`
[INFO] [stdout]    --> src/display.rs:133:13
[INFO] [stdout]     |
[INFO] [stdout] 133 |         let display = Display::from_window(window)?;
[INFO] [stdout]     |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_display`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mutex`
[INFO] [stdout]    --> src/display.rs:141:13
[INFO] [stdout]     |
[INFO] [stdout] 141 |         let mutex = test_lock()?;
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_mutex`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/interpreter.rs:54:13
[INFO] [stdout]    |
[INFO] [stdout] 54 |         let mut interpreter = Interpreter
[INFO] [stdout]    |             ----^^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/display.rs:151:13
[INFO] [stdout]     |
[INFO] [stdout] 151 |         let mut grid = display.mut_editor().mut_grid();
[INFO] [stdout]     |             ----^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `pc`
[INFO] [stdout]   --> src/interpreter.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pc             : ProgramCounter,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `context`
[INFO] [stdout]   --> src/interpreter.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 |     context        : Sdl,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `display`
[INFO] [stdout]   --> src/interpreter.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 |     display        : Display,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `keypad`
[INFO] [stdout]   --> src/interpreter.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 |     keypad         : Keypad,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `speakers`
[INFO] [stdout]   --> src/interpreter.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 |     speakers       : Speakers,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `i_register`
[INFO] [stdout]   --> src/interpreter.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 |     i_register     : IRegister,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `data_registers`
[INFO] [stdout]   --> src/interpreter.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 |     data_registers : AllDataRegisters,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `stack`
[INFO] [stdout]   --> src/interpreter.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 |     stack          : Stack,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `cpu_limiter`
[INFO] [stdout]   --> src/interpreter.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 29 |     cpu_limiter    : RateLimiter,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `timer_limiter`
[INFO] [stdout]   --> src/interpreter.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 |     timer_limiter  : RateLimiter,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `delay_timer`
[INFO] [stdout]   --> src/interpreter.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 31 |     delay_timer    : Timer,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `sound_timer`
[INFO] [stdout]   --> src/interpreter.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 32 |     sound_timer    : Timer,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `cpu_step`
[INFO] [stdout]    --> src/interpreter.rs:101:8
[INFO] [stdout]     |
[INFO] [stdout] 101 |     fn cpu_step(&mut self) -> Result<(), String>
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `tick_timers`
[INFO] [stdout]    --> src/interpreter.rs:115:8
[INFO] [stdout]     |
[INFO] [stdout] 115 |     fn tick_timers(&mut self) -> Result<(), String>
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `extract_opcode_bytes`
[INFO] [stdout]    --> src/interpreter.rs:123:8
[INFO] [stdout]     |
[INFO] [stdout] 123 |     fn extract_opcode_bytes(&mut self) -> Result<(u8, u8), String>
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `status`
[INFO] [stdout]   --> src/timer.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 |     status : TimerStatus,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `texture_creator`
[INFO] [stdout]   --> src/display/tileset.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 |     texture_creator : TextureCreator<WindowContext>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 33 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 28.69s
[INFO] running `Command { std: "docker" "inspect" "cbe5884ee8dbae8b57170d5b3f4c64a897a86075fe5fdeed3f39363d1a380d5a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cbe5884ee8dbae8b57170d5b3f4c64a897a86075fe5fdeed3f39363d1a380d5a", kill_on_drop: false }`
[INFO] [stdout] cbe5884ee8dbae8b57170d5b3f4c64a897a86075fe5fdeed3f39363d1a380d5a
