[INFO] updating cached repository alexfish8/rustboy
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/alexfish8/rustboy
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/alexfish8/rustboy" "work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/alexfish8/rustboy"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/alexfish8/rustboy'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/alexfish8/rustboy" "work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/alexfish8/rustboy"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/alexfish8/rustboy'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] d40e74f8ab2d772cff8966c264c804c4a0b9cd78
[INFO] sha for GitHub repo alexfish8/rustboy: d40e74f8ab2d772cff8966c264c804c4a0b9cd78
[INFO] validating manifest of alexfish8/rustboy on toolchain master#60960a260f7b5c695fd0717311d72ce62dd4eb43
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of alexfish8/rustboy on toolchain try#266783e4e09e4e9d5307c1c8e695659c58bbcac7
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing alexfish8/rustboy
[INFO] finished frobbing alexfish8/rustboy
[INFO] frobbed toml for alexfish8/rustboy written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/alexfish8/rustboy/Cargo.toml
[INFO] started frobbing alexfish8/rustboy
[INFO] finished frobbing alexfish8/rustboy
[INFO] frobbed toml for alexfish8/rustboy written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/alexfish8/rustboy/Cargo.toml
[INFO] crate alexfish8/rustboy already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking alexfish8/rustboy against try#266783e4e09e4e9d5307c1c8e695659c58bbcac7 for pr-63376
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-6/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/alexfish8/rustboy:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] f497c2c16c3ffa40fad0f268bef4235fc0a35c920007c77bcdcaa227200d43cc
[INFO] running `"docker" "start" "-a" "f497c2c16c3ffa40fad0f268bef4235fc0a35c920007c77bcdcaa227200d43cc"`
[INFO] [stderr]    Compiling sdl2-sys v0.27.2
[INFO] [stderr]     Checking num-iter v0.1.33
[INFO] [stderr]     Checking num v0.1.37
[INFO] [stderr]     Checking sdl2 v0.29.0
[INFO] [stderr]     Checking rustboy v0.1.0 (/opt/crater/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: 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: 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: `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 6.42s
[INFO] running `"docker" "inspect" "f497c2c16c3ffa40fad0f268bef4235fc0a35c920007c77bcdcaa227200d43cc"`
[INFO] running `"docker" "rm" "-f" "f497c2c16c3ffa40fad0f268bef4235fc0a35c920007c77bcdcaa227200d43cc"`
[INFO] [stdout] f497c2c16c3ffa40fad0f268bef4235fc0a35c920007c77bcdcaa227200d43cc