[INFO] updating cached repository https://github.com/BearzRobotics/zemulator
[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] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f7e7382dcfa177bdcca8e8e3c509bb725b7d20f5
[INFO] checking BearzRobotics/zemulator against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBearzRobotics%2Fzemulator" "/workspace/builds/worker-12/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/BearzRobotics/zemulator on toolchain 45d050cde277b22a755847338f2acc2c7b834141
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/BearzRobotics/zemulator
[INFO] finished tweaking git repo https://github.com/BearzRobotics/zemulator
[INFO] tweaked toml for git repo https://github.com/BearzRobotics/zemulator written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/BearzRobotics/zemulator already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+45d050cde277b22a755847338f2acc2c7b834141" "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] d5a0a52b0a8b2e4f06595f96c302fea58cc517b32706f8b86b445eb88a5323af
[INFO] running `"docker" "start" "-a" "d5a0a52b0a8b2e4f06595f96c302fea58cc517b32706f8b86b445eb88a5323af"`
[INFO] [stderr]    Compiling libc v0.2.44
[INFO] [stderr]    Compiling pkg-config v0.3.14
[INFO] [stderr]    Compiling cc v1.0.25
[INFO] [stderr]     Checking lazy_static v0.2.11
[INFO] [stderr]    Compiling x11-dl v2.14.0
[INFO] [stderr]     Checking rand v0.4.3
[INFO] [stderr]     Checking time v0.1.40
[INFO] [stderr]    Compiling minifb v0.10.7
[INFO] [stderr]     Checking rand v0.3.22
[INFO] [stderr]     Checking emulator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused imports: `Duration`, `Instant`
[INFO] [stderr]  --> src/main.rs:4:17
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::time::{Duration, Instant};
[INFO] [stderr]   |                 ^^^^^^^^  ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fmt`
[INFO] [stderr]  --> src/cpu.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::fmt;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `IndependentSample`, `Range`
[INFO] [stderr]  --> src/cpu.rs:4:27
[INFO] [stderr]   |
[INFO] [stderr] 4 | use rand::distributions::{IndependentSample, Range};
[INFO] [stderr]   |                           ^^^^^^^^^^^^^^^^^  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Duration`, `Instant`
[INFO] [stderr]  --> src/main.rs:4:17
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::time::{Duration, Instant};
[INFO] [stderr]   |                 ^^^^^^^^  ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fmt`
[INFO] [stderr]  --> src/cpu.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::fmt;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `IndependentSample`, `Range`
[INFO] [stderr]  --> src/cpu.rs:4:27
[INFO] [stderr]   |
[INFO] [stderr] 4 | use rand::distributions::{IndependentSample, Range};
[INFO] [stderr]   |                           ^^^^^^^^^^^^^^^^^  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable statement
[INFO] [stderr]   --> src/main.rs:52:5
[INFO] [stderr]    |
[INFO] [stderr] 47 | /     loop{
[INFO] [stderr] 48 | |         chip.run_instruction();
[INFO] [stderr] 49 | |         //chip.print_reg_values();
[INFO] [stderr] 50 | |     }
[INFO] [stderr]    | |_____- any code following this expression is unreachable
[INFO] [stderr] 51 |       // this is here for debuging
[INFO] [stderr] 52 |       println!("Loop has ened");
[INFO] [stderr]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable statement
[INFO] [stderr]   --> src/main.rs:52:5
[INFO] [stderr]    |
[INFO] [stderr] 47 | /     loop{
[INFO] [stderr] 48 | |         chip.run_instruction();
[INFO] [stderr] 49 | |         //chip.print_reg_values();
[INFO] [stderr] 50 | |     }
[INFO] [stderr]    | |_____- any code following this expression is unreachable
[INFO] [stderr] 51 |       // this is here for debuging
[INFO] [stderr] 52 |       println!("Loop has ened");
[INFO] [stderr]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `vx`
[INFO] [stderr]   --> src/cpu.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     vx:         [u8; 3], // number of general regesters
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `alu`
[INFO] [stderr]   --> src/cpu.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     alu:        u8,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `ret_stack`
[INFO] [stderr]   --> src/cpu.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     ret_stack:  Vec<u16>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `rng`
[INFO] [stderr]   --> src/cpu.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 |     rng:        rand::ThreadRng,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `debug_draw_sprite`
[INFO] [stderr]    --> src/cpu.rs:180:5
[INFO] [stderr]     |
[INFO] [stderr] 180 |     fn debug_draw_sprite() {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `write_reg_vx`
[INFO] [stderr]    --> src/cpu.rs:184:5
[INFO] [stderr]     |
[INFO] [stderr] 184 |     pub fn write_reg_vx(&mut self, index: u8, value: u8){
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `read_reg_vx`
[INFO] [stderr]    --> src/cpu.rs:188:5
[INFO] [stderr]     |
[INFO] [stderr] 188 |     pub fn read_reg_vx(&mut self, index: u8) -> u8{
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `print_reg_values`
[INFO] [stderr]    --> src/cpu.rs:192:5
[INFO] [stderr]     |
[INFO] [stderr] 192 |     pub fn print_reg_values(&mut self, bus: &mut Bus) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `key_pressed`
[INFO] [stderr]  --> src/keyboard.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 |     key_pressed: Option<u8>,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `is_key_pressed`
[INFO] [stderr]   --> src/keyboard.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     pub fn is_key_pressed(&self, key_code: u8) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `set_key_pressed`
[INFO] [stderr]   --> src/keyboard.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     pub fn set_key_pressed(&mut self, key: Option<u8>){
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_key_pressed`
[INFO] [stderr]   --> src/keyboard.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 |     pub fn get_key_pressed(&self) -> Option<u8> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `print_reg_values`
[INFO] [stderr]   --> src/chip.rs:31:5
[INFO] [stderr]    |
[INFO] [stderr] 31 |     pub fn print_reg_values(&mut self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_display_buffer`
[INFO] [stderr]   --> src/chip.rs:35:4
[INFO] [stderr]    |
[INFO] [stderr] 35 |    pub fn get_display_buffer(&self) -> &[u8] {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `set_key_pressed`
[INFO] [stderr]   --> src/chip.rs:39:4
[INFO] [stderr]    |
[INFO] [stderr] 39 |    pub fn set_key_pressed(&mut self, key: Option<u8>) {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `keyboard`
[INFO] [stderr]  --> src/bus.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     keyboard:               Keyboard,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `display`
[INFO] [stderr]   --> src/bus.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     display:                Display,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `delay_timer_set_time`
[INFO] [stderr]   --> src/bus.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     delay_timer_set_time:   time::Instant,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `reg_bus`
[INFO] [stderr]   --> src/bus.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     reg_bus:                u8, // this is the bus regitor
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `ram_write_byte`
[INFO] [stderr]   --> src/bus.rs:32:5
[INFO] [stderr]    |
[INFO] [stderr] 32 |     pub fn ram_write_byte(&mut self, address: u16, value: u8) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `debug_draw_byte`
[INFO] [stderr]   --> src/bus.rs:36:5
[INFO] [stderr]    |
[INFO] [stderr] 36 |     pub fn debug_draw_byte(&mut self, byte: u8, x: u8, y: u8) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `clear_screen`
[INFO] [stderr]   --> src/bus.rs:40:5
[INFO] [stderr]    |
[INFO] [stderr] 40 |     pub fn clear_screen(&mut self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `set_key_pressed`
[INFO] [stderr]   --> src/bus.rs:44:5
[INFO] [stderr]    |
[INFO] [stderr] 44 |     pub fn set_key_pressed(&mut self, key: Option<u8>) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `is_key_pressed`
[INFO] [stderr]   --> src/bus.rs:48:5
[INFO] [stderr]    |
[INFO] [stderr] 48 |     pub fn is_key_pressed(&self, key_code: u8) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `set_delay_timer`
[INFO] [stderr]   --> src/bus.rs:52:5
[INFO] [stderr]    |
[INFO] [stderr] 52 |     pub fn set_delay_timer(&mut self, value: u8) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_delay_timer`
[INFO] [stderr]   --> src/bus.rs:57:5
[INFO] [stderr]    |
[INFO] [stderr] 57 |     pub fn get_delay_timer(&self) -> u8 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_display_buffer`
[INFO] [stderr]   --> src/bus.rs:68:5
[INFO] [stderr]    |
[INFO] [stderr] 68 |     pub fn get_display_buffer(&self) -> &[u8] {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_reg_bus`
[INFO] [stderr]   --> src/bus.rs:72:5
[INFO] [stderr]    |
[INFO] [stderr] 72 |     pub fn get_reg_bus(&self) -> u8 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `screen`
[INFO] [stderr]  --> src/display.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     screen: [u8; WIDTH * HEIGHT],
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_index_from_coords`
[INFO] [stderr]   --> src/display.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     pub fn get_index_from_coords(x: usize, y: usize) -> usize {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `debug_draw_raw`
[INFO] [stderr]   --> src/display.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 |     pub fn debug_draw_raw(&mut self, byte: u8, x: u8, y: u8) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `clear`
[INFO] [stderr]   --> src/display.rs:45:5
[INFO] [stderr]    |
[INFO] [stderr] 45 |     pub fn clear(&mut self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_display_buffer`
[INFO] [stderr]   --> src/display.rs:51:5
[INFO] [stderr]    |
[INFO] [stderr] 51 |     pub fn get_display_buffer(&self) -> &[u8] {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused attribute
[INFO] [stderr]  --> src/display.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(type_ascription)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_attributes)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: crate-level attribute should be in the root module
[INFO] [stderr]  --> src/display.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(type_ascription)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `vx`
[INFO] [stderr]   --> src/cpu.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     vx:         [u8; 3], // number of general regesters
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `alu`
[INFO] [stderr]   --> src/cpu.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     alu:        u8,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `ret_stack`
[INFO] [stderr]   --> src/cpu.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     ret_stack:  Vec<u16>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `rng`
[INFO] [stderr]   --> src/cpu.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 |     rng:        rand::ThreadRng,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `debug_draw_sprite`
[INFO] [stderr]    --> src/cpu.rs:180:5
[INFO] [stderr]     |
[INFO] [stderr] 180 |     fn debug_draw_sprite() {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `write_reg_vx`
[INFO] [stderr]    --> src/cpu.rs:184:5
[INFO] [stderr]     |
[INFO] [stderr] 184 |     pub fn write_reg_vx(&mut self, index: u8, value: u8){
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `read_reg_vx`
[INFO] [stderr]    --> src/cpu.rs:188:5
[INFO] [stderr]     |
[INFO] [stderr] 188 |     pub fn read_reg_vx(&mut self, index: u8) -> u8{
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `print_reg_values`
[INFO] [stderr]    --> src/cpu.rs:192:5
[INFO] [stderr]     |
[INFO] [stderr] 192 |     pub fn print_reg_values(&mut self, bus: &mut Bus) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `key_pressed`
[INFO] [stderr]  --> src/keyboard.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 |     key_pressed: Option<u8>,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `is_key_pressed`
[INFO] [stderr]   --> src/keyboard.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     pub fn is_key_pressed(&self, key_code: u8) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `set_key_pressed`
[INFO] [stderr]   --> src/keyboard.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     pub fn set_key_pressed(&mut self, key: Option<u8>){
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_key_pressed`
[INFO] [stderr]   --> src/keyboard.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 |     pub fn get_key_pressed(&self) -> Option<u8> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `print_reg_values`
[INFO] [stderr]   --> src/chip.rs:31:5
[INFO] [stderr]    |
[INFO] [stderr] 31 |     pub fn print_reg_values(&mut self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_display_buffer`
[INFO] [stderr]   --> src/chip.rs:35:4
[INFO] [stderr]    |
[INFO] [stderr] 35 |    pub fn get_display_buffer(&self) -> &[u8] {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 39 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `set_key_pressed`
[INFO] [stderr]   --> src/chip.rs:39:4
[INFO] [stderr]    |
[INFO] [stderr] 39 |    pub fn set_key_pressed(&mut self, key: Option<u8>) {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `keyboard`
[INFO] [stderr]  --> src/bus.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     keyboard:               Keyboard,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `display`
[INFO] [stderr]   --> src/bus.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     display:                Display,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `delay_timer_set_time`
[INFO] [stderr]   --> src/bus.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     delay_timer_set_time:   time::Instant,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `reg_bus`
[INFO] [stderr]   --> src/bus.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     reg_bus:                u8, // this is the bus regitor
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `ram_write_byte`
[INFO] [stderr]   --> src/bus.rs:32:5
[INFO] [stderr]    |
[INFO] [stderr] 32 |     pub fn ram_write_byte(&mut self, address: u16, value: u8) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `debug_draw_byte`
[INFO] [stderr]   --> src/bus.rs:36:5
[INFO] [stderr]    |
[INFO] [stderr] 36 |     pub fn debug_draw_byte(&mut self, byte: u8, x: u8, y: u8) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `clear_screen`
[INFO] [stderr]   --> src/bus.rs:40:5
[INFO] [stderr]    |
[INFO] [stderr] 40 |     pub fn clear_screen(&mut self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `set_key_pressed`
[INFO] [stderr]   --> src/bus.rs:44:5
[INFO] [stderr]    |
[INFO] [stderr] 44 |     pub fn set_key_pressed(&mut self, key: Option<u8>) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `is_key_pressed`
[INFO] [stderr]   --> src/bus.rs:48:5
[INFO] [stderr]    |
[INFO] [stderr] 48 |     pub fn is_key_pressed(&self, key_code: u8) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `set_delay_timer`
[INFO] [stderr]   --> src/bus.rs:52:5
[INFO] [stderr]    |
[INFO] [stderr] 52 |     pub fn set_delay_timer(&mut self, value: u8) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_delay_timer`
[INFO] [stderr]   --> src/bus.rs:57:5
[INFO] [stderr]    |
[INFO] [stderr] 57 |     pub fn get_delay_timer(&self) -> u8 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_display_buffer`
[INFO] [stderr]   --> src/bus.rs:68:5
[INFO] [stderr]    |
[INFO] [stderr] 68 |     pub fn get_display_buffer(&self) -> &[u8] {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_reg_bus`
[INFO] [stderr]   --> src/bus.rs:72:5
[INFO] [stderr]    |
[INFO] [stderr] 72 |     pub fn get_reg_bus(&self) -> u8 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `screen`
[INFO] [stderr]  --> src/display.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     screen: [u8; WIDTH * HEIGHT],
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_index_from_coords`
[INFO] [stderr]   --> src/display.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     pub fn get_index_from_coords(x: usize, y: usize) -> usize {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `debug_draw_raw`
[INFO] [stderr]   --> src/display.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 |     pub fn debug_draw_raw(&mut self, byte: u8, x: u8, y: u8) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `clear`
[INFO] [stderr]   --> src/display.rs:45:5
[INFO] [stderr]    |
[INFO] [stderr] 45 |     pub fn clear(&mut self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_display_buffer`
[INFO] [stderr]   --> src/display.rs:51:5
[INFO] [stderr]    |
[INFO] [stderr] 51 |     pub fn get_display_buffer(&self) -> &[u8] {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused attribute
[INFO] [stderr]  --> src/display.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(type_ascription)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_attributes)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: crate-level attribute should be in the root module
[INFO] [stderr]  --> src/display.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(type_ascription)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 39 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.52s
[INFO] running `"docker" "inspect" "d5a0a52b0a8b2e4f06595f96c302fea58cc517b32706f8b86b445eb88a5323af"`
[INFO] running `"docker" "rm" "-f" "d5a0a52b0a8b2e4f06595f96c302fea58cc517b32706f8b86b445eb88a5323af"`
[INFO] [stdout] d5a0a52b0a8b2e4f06595f96c302fea58cc517b32706f8b86b445eb88a5323af