[INFO] cloning repository https://github.com/alexfish8/rustboy
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/alexfish8/rustboy" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falexfish8%2Frustboy"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falexfish8%2Frustboy'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] d40e74f8ab2d772cff8966c264c804c4a0b9cd78
[INFO] checking alexfish8/rustboy against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falexfish8%2Frustboy" "/workspace/builds/worker-1/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/alexfish8/rustboy on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/alexfish8/rustboy
[INFO] finished tweaking git repo https://github.com/alexfish8/rustboy
[INFO] tweaked toml for git repo https://github.com/alexfish8/rustboy written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/alexfish8/rustboy already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 0b730e1a4e91abab5f1bf93cc76f47bb9b9fb0357c909c891aea3c472a0e15c4
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "0b730e1a4e91abab5f1bf93cc76f47bb9b9fb0357c909c891aea3c472a0e15c4"`
[INFO] [stderr]     Checking num v0.1.37
[INFO] [stderr]     Checking sdl2 v0.29.0
[INFO] [stderr]     Checking rustboy v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `std::fs::File`
[INFO] [stderr]  --> src/gameboy.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::fs::File;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::process`
[INFO] [stderr]  --> src/gameboy.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::process;
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::Read`
[INFO] [stderr]  --> src/gameboy.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::io::Read;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `self::sdl2::pixels::Color`
[INFO] [stderr]  --> src/gameboy.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use self::sdl2::pixels::Color;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::thread`
[INFO] [stderr]  --> src/gameboy.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::thread;
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::time::Duration`
[INFO] [stderr]  --> src/gameboy.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::time::Duration;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::ops::Index`
[INFO] [stderr]   --> src/gameboy.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use std::ops::Index;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: denote infinite loops with `loop { ... }`
[INFO] [stderr]   --> src/gameboy.rs:49:9
[INFO] [stderr]    |
[INFO] [stderr] 49 |         while true {
[INFO] [stderr]    |         ^^^^^^^^^^ help: use `loop`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(while_true)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Register8`
[INFO] [stderr]  --> src/instruction.rs:2:11
[INFO] [stderr]   |
[INFO] [stderr] 2 | use cpu::{Register8, Register16};
[INFO] [stderr]   |           ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `num_bytes`
[INFO] [stderr]   --> src/cartridge.rs:14:13
[INFO] [stderr]    |
[INFO] [stderr] 14 |         let num_bytes = match f.read_to_end(&mut buf) {
[INFO] [stderr]    |             ^^^^^^^^^ help: consider prefixing with an underscore: `_num_bytes`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]   --> src/cartridge.rs:16:17
[INFO] [stderr]    |
[INFO] [stderr] 16 |             Err(e)           => return Err("Failed to read file")
[INFO] [stderr]    |                 ^ help: consider prefixing with an underscore: `_e`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `cycles`
[INFO] [stderr]   --> src/gameboy.rs:47:17
[INFO] [stderr]    |
[INFO] [stderr] 47 |         let mut cycles = 0;
[INFO] [stderr]    |                 ^^^^^^ help: consider prefixing with an underscore: `_cycles`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `int`
[INFO] [stderr]   --> src/cpu.rs:46:23
[INFO] [stderr]    |
[INFO] [stderr] 46 |     fn from_interrupt(int: Interrupt) -> Executable {
[INFO] [stderr]    |                       ^^^ help: consider prefixing with an underscore: `_int`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `int`
[INFO] [stderr]    --> src/cpu.rs:177:36
[INFO] [stderr]     |
[INFO] [stderr] 177 |     fn handle_interrupt(&mut self, int: Interrupt) -> () {
[INFO] [stderr]     |                                    ^^^ help: consider prefixing with an underscore: `_int`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `cpu`
[INFO] [stderr]    --> src/cpu.rs:185:30
[INFO] [stderr]     |
[INFO] [stderr] 185 |     fn dummy_instr_execution(cpu: &mut Cpu) -> () {
[INFO] [stderr]     |                              ^^^ help: consider prefixing with an underscore: `_cpu`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]    --> src/cpu.rs:192:17
[INFO] [stderr]     |
[INFO] [stderr] 192 |             Err(e) => {
[INFO] [stderr]     |                 ^ help: consider prefixing with an underscore: `_e`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `num_bytes`
[INFO] [stderr]    --> src/cpu.rs:200:13
[INFO] [stderr]     |
[INFO] [stderr] 200 |         let num_bytes = match f.read_to_end(&mut buf) {
[INFO] [stderr]     |             ^^^^^^^^^ help: consider prefixing with an underscore: `_num_bytes`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]    --> src/cpu.rs:202:17
[INFO] [stderr]     |
[INFO] [stderr] 202 |             Err(e)           => return Err("Failed to read file")
[INFO] [stderr]     |                 ^ help: consider prefixing with an underscore: `_e`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `cpu`
[INFO] [stderr]   --> src/instruction.rs:60:9
[INFO] [stderr]    |
[INFO] [stderr] 60 | fn derp(cpu: &mut Cpu) -> () {
[INFO] [stderr]    |         ^^^ help: consider prefixing with an underscore: `_cpu`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `cpu`
[INFO] [stderr]  --> src/interrupt.rs:9:13
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub fn derp(cpu: &mut Cpu) -> () {
[INFO] [stderr]   |             ^^^ help: consider prefixing with an underscore: `_cpu`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/gameboy.rs:39:13
[INFO] [stderr]    |
[INFO] [stderr] 39 |         let mut renderer = window.renderer()
[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/gameboy.rs:47:13
[INFO] [stderr]    |
[INFO] [stderr] 47 |         let mut cycles = 0;
[INFO] [stderr]    |             ----^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `data`
[INFO] [stderr]  --> src/cartridge.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     data : Vec<u8>
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `CLOCK_FREQUENCY`
[INFO] [stderr]   --> src/gameboy.rs:20:1
[INFO] [stderr]    |
[INFO] [stderr] 20 | const CLOCK_FREQUENCY : f32 = 4.194304e6; // TODO let this be configured by the user
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `OPCODE_SIZE`
[INFO] [stderr]   --> src/cpu.rs:15:1
[INFO] [stderr]    |
[INFO] [stderr] 15 | const OPCODE_SIZE: usize = 1;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `cartridge`
[INFO] [stderr]   --> src/cpu.rs:87:5
[INFO] [stderr]    |
[INFO] [stderr] 87 |     cartridge: Cartridge,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `handle_interrupt`
[INFO] [stderr]    --> src/cpu.rs:177:5
[INFO] [stderr]     |
[INFO] [stderr] 177 |     fn handle_interrupt(&mut self, int: Interrupt) -> () {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `dummy_instr_execution`
[INFO] [stderr]    --> src/cpu.rs:185:5
[INFO] [stderr]     |
[INFO] [stderr] 185 |     fn dummy_instr_execution(cpu: &mut Cpu) -> () {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `derp`
[INFO] [stderr]   --> src/instruction.rs:60:1
[INFO] [stderr]    |
[INFO] [stderr] 60 | fn derp(cpu: &mut Cpu) -> () {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fs::File`
[INFO] [stderr]  --> src/gameboy.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::fs::File;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::process`
[INFO] [stderr]  --> src/gameboy.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::process;
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::Read`
[INFO] [stderr]  --> src/gameboy.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::io::Read;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `self::sdl2::pixels::Color`
[INFO] [stderr]  --> src/gameboy.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use self::sdl2::pixels::Color;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::thread`
[INFO] [stderr]  --> src/gameboy.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::thread;
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::time::Duration`
[INFO] [stderr]  --> src/gameboy.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::time::Duration;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::ops::Index`
[INFO] [stderr]   --> src/gameboy.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use std::ops::Index;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: denote infinite loops with `loop { ... }`
[INFO] [stderr]   --> src/gameboy.rs:49:9
[INFO] [stderr]    |
[INFO] [stderr] 49 |         while true {
[INFO] [stderr]    |         ^^^^^^^^^^ help: use `loop`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(while_true)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Register8`
[INFO] [stderr]  --> src/instruction.rs:2:11
[INFO] [stderr]   |
[INFO] [stderr] 2 | use cpu::{Register8, Register16};
[INFO] [stderr]   |           ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `num_bytes`
[INFO] [stderr]   --> src/cartridge.rs:14:13
[INFO] [stderr]    |
[INFO] [stderr] 14 |         let num_bytes = match f.read_to_end(&mut buf) {
[INFO] [stderr]    |             ^^^^^^^^^ help: consider prefixing with an underscore: `_num_bytes`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]   --> src/cartridge.rs:16:17
[INFO] [stderr]    |
[INFO] [stderr] 16 |             Err(e)           => return Err("Failed to read file")
[INFO] [stderr]    |                 ^ help: consider prefixing with an underscore: `_e`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `cycles`
[INFO] [stderr]   --> src/gameboy.rs:47:17
[INFO] [stderr]    |
[INFO] [stderr] 47 |         let mut cycles = 0;
[INFO] [stderr]    |                 ^^^^^^ help: consider prefixing with an underscore: `_cycles`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `int`
[INFO] [stderr]   --> src/cpu.rs:46:23
[INFO] [stderr]    |
[INFO] [stderr] 46 |     fn from_interrupt(int: Interrupt) -> Executable {
[INFO] [stderr]    |                       ^^^ help: consider prefixing with an underscore: `_int`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `int`
[INFO] [stderr]    --> src/cpu.rs:177:36
[INFO] [stderr]     |
[INFO] [stderr] 177 |     fn handle_interrupt(&mut self, int: Interrupt) -> () {
[INFO] [stderr]     |                                    ^^^ help: consider prefixing with an underscore: `_int`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `cpu`
[INFO] [stderr]    --> src/cpu.rs:185:30
[INFO] [stderr]     |
[INFO] [stderr] 185 |     fn dummy_instr_execution(cpu: &mut Cpu) -> () {
[INFO] [stderr]     |                              ^^^ help: consider prefixing with an underscore: `_cpu`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]    --> src/cpu.rs:192:17
[INFO] [stderr]     |
[INFO] [stderr] 192 |             Err(e) => {
[INFO] [stderr]     |                 ^ help: consider prefixing with an underscore: `_e`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `num_bytes`
[INFO] [stderr]    --> src/cpu.rs:200:13
[INFO] [stderr]     |
[INFO] [stderr] 200 |         let num_bytes = match f.read_to_end(&mut buf) {
[INFO] [stderr]     |             ^^^^^^^^^ help: consider prefixing with an underscore: `_num_bytes`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]    --> src/cpu.rs:202:17
[INFO] [stderr]     |
[INFO] [stderr] 202 |             Err(e)           => return Err("Failed to read file")
[INFO] [stderr]     |                 ^ help: consider prefixing with an underscore: `_e`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `cpu`
[INFO] [stderr]   --> src/instruction.rs:60:9
[INFO] [stderr]    |
[INFO] [stderr] 60 | fn derp(cpu: &mut Cpu) -> () {
[INFO] [stderr]    |         ^^^ help: consider prefixing with an underscore: `_cpu`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `cpu`
[INFO] [stderr]  --> src/interrupt.rs:9:13
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub fn derp(cpu: &mut Cpu) -> () {
[INFO] [stderr]   |             ^^^ help: consider prefixing with an underscore: `_cpu`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/gameboy.rs:39:13
[INFO] [stderr]    |
[INFO] [stderr] 39 |         let mut renderer = window.renderer()
[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/gameboy.rs:47:13
[INFO] [stderr]    |
[INFO] [stderr] 47 |         let mut cycles = 0;
[INFO] [stderr]    |             ----^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `data`
[INFO] [stderr]  --> src/cartridge.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     data : Vec<u8>
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `CLOCK_FREQUENCY`
[INFO] [stderr]   --> src/gameboy.rs:20:1
[INFO] [stderr]    |
[INFO] [stderr] 20 | const CLOCK_FREQUENCY : f32 = 4.194304e6; // TODO let this be configured by the user
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `OPCODE_SIZE`
[INFO] [stderr]   --> src/cpu.rs:15:1
[INFO] [stderr]    |
[INFO] [stderr] 15 | const OPCODE_SIZE: usize = 1;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `cartridge`
[INFO] [stderr]   --> src/cpu.rs:87:5
[INFO] [stderr]    |
[INFO] [stderr] 87 |     cartridge: Cartridge,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `handle_interrupt`
[INFO] [stderr]    --> src/cpu.rs:177:5
[INFO] [stderr]     |
[INFO] [stderr] 177 |     fn handle_interrupt(&mut self, int: Interrupt) -> () {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `dummy_instr_execution`
[INFO] [stderr]    --> src/cpu.rs:185:5
[INFO] [stderr]     |
[INFO] [stderr] 185 |     fn dummy_instr_execution(cpu: &mut Cpu) -> () {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `derp`
[INFO] [stderr]   --> src/instruction.rs:60:1
[INFO] [stderr]    |
[INFO] [stderr] 60 | fn derp(cpu: &mut Cpu) -> () {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]   --> src/main.rs:27:13
[INFO] [stderr]    |
[INFO] [stderr] 27 |         Err(e) => {
[INFO] [stderr]    |             ^ help: consider prefixing with an underscore: `_e`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `STARTUP_ROM_PATH`
[INFO] [stderr]   --> src/main.rs:10:1
[INFO] [stderr]    |
[INFO] [stderr] 10 | const STARTUP_ROM_PATH : &'static str = "startup_rom.bin";
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:45:5
[INFO] [stderr]    |
[INFO] [stderr] 45 |     Gameboy::run(cartridge);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]   --> src/main.rs:27:13
[INFO] [stderr]    |
[INFO] [stderr] 27 |         Err(e) => {
[INFO] [stderr]    |             ^ help: consider prefixing with an underscore: `_e`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `STARTUP_ROM_PATH`
[INFO] [stderr]   --> src/main.rs:10:1
[INFO] [stderr]    |
[INFO] [stderr] 10 | const STARTUP_ROM_PATH : &'static str = "startup_rom.bin";
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:45:5
[INFO] [stderr]    |
[INFO] [stderr] 45 |     Gameboy::run(cartridge);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.79s
[INFO] running `"docker" "inspect" "0b730e1a4e91abab5f1bf93cc76f47bb9b9fb0357c909c891aea3c472a0e15c4"`
[INFO] running `"docker" "rm" "-f" "0b730e1a4e91abab5f1bf93cc76f47bb9b9fb0357c909c891aea3c472a0e15c4"`
[INFO] [stdout] 0b730e1a4e91abab5f1bf93cc76f47bb9b9fb0357c909c891aea3c472a0e15c4