[INFO] cloning repository https://github.com/sudfud/rugb
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sudfud/rugb" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsudfud%2Frugb", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsudfud%2Frugb'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c1c5806a447b57ee070d3d070300f68c79ddfbcd
[INFO] checking sudfud/rugb against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146470
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsudfud%2Frugb" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/sudfud/rugb
[INFO] finished tweaking git repo https://github.com/sudfud/rugb
[INFO] tweaked toml for git repo https://github.com/sudfud/rugb written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/sudfud/rugb on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/sudfud/rugb already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded sdl2 v0.38.0
[INFO] [stderr]   Downloaded sdl2-sys v0.38.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7f59b33fdde32053c42b7eeebf7fa064739d73a2c101dc55c3047ac3d6605d7d
[INFO] running `Command { std: "docker" "start" "-a" "7f59b33fdde32053c42b7eeebf7fa064739d73a2c101dc55c3047ac3d6605d7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7f59b33fdde32053c42b7eeebf7fa064739d73a2c101dc55c3047ac3d6605d7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f59b33fdde32053c42b7eeebf7fa064739d73a2c101dc55c3047ac3d6605d7d", kill_on_drop: false }`
[INFO] [stdout] 7f59b33fdde32053c42b7eeebf7fa064739d73a2c101dc55c3047ac3d6605d7d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0f180f8919730e5835a20a5d7d0ec2b6122f11b545ea8d2b9a738245588affca
[INFO] running `Command { std: "docker" "start" "-a" "0f180f8919730e5835a20a5d7d0ec2b6122f11b545ea8d2b9a738245588affca", kill_on_drop: false }`
[INFO] [stderr]    Compiling find-msvc-tools v0.1.4
[INFO] [stderr]    Compiling version-compare v0.1.1
[INFO] [stderr]    Compiling cfg-if v1.0.4
[INFO] [stderr]    Compiling libc v0.2.177
[INFO] [stderr]    Compiling sdl2 v0.38.0
[INFO] [stderr]     Checking lazy_static v1.5.0
[INFO] [stderr]    Compiling cc v1.2.41
[INFO] [stderr]    Compiling cmake v0.1.54
[INFO] [stderr]    Compiling sdl2-sys v0.38.0
[INFO] [stderr]     Checking rugb v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::cell::RefCell`
[INFO] [stdout]  --> src/emulator.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::cell::RefCell;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs::File`
[INFO] [stdout]  --> src/emulator.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::fs::File;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]  --> src/emulator.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::rc::Rc;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sdl2::event::Event`
[INFO] [stdout]  --> src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use sdl2::event::Event;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sdl2::keyboard::Keycode`
[INFO] [stdout]  --> src/main.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use sdl2::keyboard::Keycode;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sdl2::pixels::Color`
[INFO] [stdout]  --> src/main.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use sdl2::pixels::Color;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::time::Duration`
[INFO] [stdout]   --> src/main.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::time::Duration;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cell::RefCell`
[INFO] [stdout]  --> src/emulator.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::cell::RefCell;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs::File`
[INFO] [stdout]  --> src/emulator.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::fs::File;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]  --> src/emulator.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::rc::Rc;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sdl2::event::Event`
[INFO] [stdout]  --> src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use sdl2::event::Event;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sdl2::keyboard::Keycode`
[INFO] [stdout]  --> src/main.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use sdl2::keyboard::Keycode;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sdl2::pixels::Color`
[INFO] [stdout]  --> src/main.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use sdl2::pixels::Color;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::time::Duration`
[INFO] [stdout]   --> src/main.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::time::Duration;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::Write`
[INFO] [stdout]  --> src/emulator.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::io::Write;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `address`
[INFO] [stdout]   --> src/emulator/cartridge/mbc/mbc0.rs:18:29
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn write_rom(&mut self, address: u16, value: u8) {
[INFO] [stdout]    |                             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_address`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/emulator/cartridge/mbc/mbc0.rs:18:43
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn write_rom(&mut self, address: u16, value: u8) {
[INFO] [stdout]    |                                           ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `address`
[INFO] [stdout]   --> src/emulator/cartridge/mbc/mbc0.rs:22:24
[INFO] [stdout]    |
[INFO] [stdout] 22 |     fn read_ram(&self, address: u16) -> u8 {
[INFO] [stdout]    |                        ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_address`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `address`
[INFO] [stdout]   --> src/emulator/cartridge/mbc/mbc0.rs:26:25
[INFO] [stdout]    |
[INFO] [stdout] 26 |     fn write_ram(&self, address: u16, value: u8) {
[INFO] [stdout]    |                         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_address`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/emulator/cartridge/mbc/mbc0.rs:26:39
[INFO] [stdout]    |
[INFO] [stdout] 26 |     fn write_ram(&self, address: u16, value: u8) {
[INFO] [stdout]    |                                       ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::Write`
[INFO] [stdout]  --> src/emulator.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::io::Write;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `address`
[INFO] [stdout]   --> src/emulator/cartridge/mbc/mbc0.rs:18:29
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn write_rom(&mut self, address: u16, value: u8) {
[INFO] [stdout]    |                             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_address`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/emulator/cartridge/mbc/mbc0.rs:18:43
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn write_rom(&mut self, address: u16, value: u8) {
[INFO] [stdout]    |                                           ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `address`
[INFO] [stdout]   --> src/emulator/cartridge/mbc/mbc0.rs:22:24
[INFO] [stdout]    |
[INFO] [stdout] 22 |     fn read_ram(&self, address: u16) -> u8 {
[INFO] [stdout]    |                        ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_address`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `address`
[INFO] [stdout]   --> src/emulator/cartridge/mbc/mbc0.rs:26:25
[INFO] [stdout]    |
[INFO] [stdout] 26 |     fn write_ram(&self, address: u16, value: u8) {
[INFO] [stdout]    |                         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_address`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/emulator/cartridge/mbc/mbc0.rs:26:39
[INFO] [stdout]    |
[INFO] [stdout] 26 |     fn write_ram(&self, address: u16, value: u8) {
[INFO] [stdout]    |                                       ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `CartridgeError` is more private than the item `EmulatorError::Cartridge::0`
[INFO] [stdout]   --> src/emulator.rs:15:15
[INFO] [stdout]    |
[INFO] [stdout] 15 |     Cartridge(CartridgeError),
[INFO] [stdout]    |               ^^^^^^^^^^^^^^ field `EmulatorError::Cartridge::0` is reachable at visibility `pub(crate)`
[INFO] [stdout]    |
[INFO] [stdout] note: but type `CartridgeError` is only usable at visibility `pub(in crate::emulator)`
[INFO] [stdout]   --> src/emulator/cartridge.rs:11:1
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub(super) enum CartridgeError {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    = note: `#[warn(private_interfaces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `CPUError` is more private than the item `EmulatorError::CPU::0`
[INFO] [stdout]   --> src/emulator.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |     CPU(CPUError)
[INFO] [stdout]    |         ^^^^^^^^ field `EmulatorError::CPU::0` is reachable at visibility `pub(crate)`
[INFO] [stdout]    |
[INFO] [stdout] note: but type `CPUError` is only usable at visibility `pub(in crate::emulator)`
[INFO] [stdout]   --> src/emulator/cpu.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub(super) enum CPUError {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless assignment of field of type `u8` to itself
[INFO] [stdout]    --> src/emulator/cpu.rs:401:21
[INFO] [stdout]     |
[INFO] [stdout] 401 |             0x40 => self.registers.b = self.registers.b,
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless assignment of field of type `u8` to itself
[INFO] [stdout]    --> src/emulator/cpu.rs:428:21
[INFO] [stdout]     |
[INFO] [stdout] 428 |             0x49 => self.registers.c = self.registers.c,
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless assignment of field of type `u8` to itself
[INFO] [stdout]    --> src/emulator/cpu.rs:455:21
[INFO] [stdout]     |
[INFO] [stdout] 455 |             0x52 => self.registers.d = self.registers.d,
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless assignment of field of type `u8` to itself
[INFO] [stdout]    --> src/emulator/cpu.rs:482:21
[INFO] [stdout]     |
[INFO] [stdout] 482 |             0x5B => self.registers.e = self.registers.e,
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless assignment of field of type `u8` to itself
[INFO] [stdout]    --> src/emulator/cpu.rs:509:21
[INFO] [stdout]     |
[INFO] [stdout] 509 |             0x64 => self.registers.h = self.registers.h,
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless assignment of field of type `u8` to itself
[INFO] [stdout]    --> src/emulator/cpu.rs:536:21
[INFO] [stdout]     |
[INFO] [stdout] 536 |             0x6D => self.registers.l = self.registers.l,
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless assignment of field of type `u8` to itself
[INFO] [stdout]    --> src/emulator/cpu.rs:590:21
[INFO] [stdout]     |
[INFO] [stdout] 590 |             0x7F => self.registers.a = self.registers.a,
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SCREEN_WIDTH` is never used
[INFO] [stdout]   --> src/main.rs:15:7
[INFO] [stdout]    |
[INFO] [stdout] 15 | const SCREEN_WIDTH: u32 = 160;
[INFO] [stdout]    |       ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SCREEN_HEIGHT` is never used
[INFO] [stdout]   --> src/main.rs:16:7
[INFO] [stdout]    |
[INFO] [stdout] 16 | const SCREEN_HEIGHT: u32 = 144;
[INFO] [stdout]    |       ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `SDL` is never constructed
[INFO] [stdout]   --> src/main.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | enum RugbError {
[INFO] [stdout]    |      --------- variant in this enum
[INFO] [stdout] 20 |     Emulator(EmulatorError),
[INFO] [stdout] 21 |     SDL(String),
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `RugbError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `pc` and `halted` are never used
[INFO] [stdout]   --> src/emulator/cpu.rs:48:19
[INFO] [stdout]    |
[INFO] [stdout] 36 | impl CPU {
[INFO] [stdout]    | -------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 48 |     pub(super) fn pc(&self) -> u16 {
[INFO] [stdout]    |                   ^^
[INFO] [stdout] ...
[INFO] [stdout] 52 |     pub(super) fn halted(&self) -> bool {
[INFO] [stdout]    |                   ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `IO_START` is never used
[INFO] [stdout]   --> src/emulator/cpu/mmu.rs:23:7
[INFO] [stdout]    |
[INFO] [stdout] 23 | const IO_START: u16 = 0xFF00;
[INFO] [stdout]    |       ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `joypad` is never read
[INFO] [stdout]   --> src/emulator/cpu/mmu.rs:55:5
[INFO] [stdout]    |
[INFO] [stdout] 50 | pub(super) struct MMU {
[INFO] [stdout]    |                   --- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 55 |     joypad: Joypad,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `data` is never read
[INFO] [stdout]  --> src/emulator/cpu/mmu/joypad.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub(super) struct Joypad {
[INFO] [stdout]   |                   ------ field in this struct
[INFO] [stdout] 2 |     data: u8
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `read` and `write` are never used
[INFO] [stdout]   --> src/emulator/cpu/mmu/joypad.rs:12:19
[INFO] [stdout]    |
[INFO] [stdout]  5 | impl Joypad {
[INFO] [stdout]    | ----------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 12 |     pub(super) fn read(&self) -> u8 {
[INFO] [stdout]    |                   ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 16 |     pub(super) fn write(&mut self, value: u8) {
[INFO] [stdout]    |                   ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple methods are never used
[INFO] [stdout]    --> src/emulator/cpu/registers.rs:39:19
[INFO] [stdout]     |
[INFO] [stdout]  23 | impl Registers {
[INFO] [stdout]     | -------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout]  39 |     pub(super) fn reset(&mut self) {
[INFO] [stdout]     |                   ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 112 |     pub(super) fn inc_bc(&mut self) {
[INFO] [stdout]     |                   ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 116 |     pub(super) fn dec_bc(&mut self) {
[INFO] [stdout]     |                   ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 120 |     pub(super) fn inc_de(&mut self) {
[INFO] [stdout]     |                   ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 124 |     pub(super) fn dec_de(&mut self) {
[INFO] [stdout]     |                   ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 128 |     pub(super) fn inc_hl(&mut self) {
[INFO] [stdout]     |                   ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 132 |     pub(super) fn dec_hl(&mut self) {
[INFO] [stdout]     |                   ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `CartridgeError` is more private than the item `EmulatorError::Cartridge::0`
[INFO] [stdout]   --> src/emulator.rs:15:15
[INFO] [stdout]    |
[INFO] [stdout] 15 |     Cartridge(CartridgeError),
[INFO] [stdout]    |               ^^^^^^^^^^^^^^ field `EmulatorError::Cartridge::0` is reachable at visibility `pub(crate)`
[INFO] [stdout]    |
[INFO] [stdout] note: but type `CartridgeError` is only usable at visibility `pub(in crate::emulator)`
[INFO] [stdout]   --> src/emulator/cartridge.rs:11:1
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub(super) enum CartridgeError {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    = note: `#[warn(private_interfaces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `CPUError` is more private than the item `EmulatorError::CPU::0`
[INFO] [stdout]   --> src/emulator.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |     CPU(CPUError)
[INFO] [stdout]    |         ^^^^^^^^ field `EmulatorError::CPU::0` is reachable at visibility `pub(crate)`
[INFO] [stdout]    |
[INFO] [stdout] note: but type `CPUError` is only usable at visibility `pub(in crate::emulator)`
[INFO] [stdout]   --> src/emulator/cpu.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub(super) enum CPUError {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless assignment of field of type `u8` to itself
[INFO] [stdout]    --> src/emulator/cpu.rs:401:21
[INFO] [stdout]     |
[INFO] [stdout] 401 |             0x40 => self.registers.b = self.registers.b,
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless assignment of field of type `u8` to itself
[INFO] [stdout]    --> src/emulator/cpu.rs:428:21
[INFO] [stdout]     |
[INFO] [stdout] 428 |             0x49 => self.registers.c = self.registers.c,
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless assignment of field of type `u8` to itself
[INFO] [stdout]    --> src/emulator/cpu.rs:455:21
[INFO] [stdout]     |
[INFO] [stdout] 455 |             0x52 => self.registers.d = self.registers.d,
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless assignment of field of type `u8` to itself
[INFO] [stdout]    --> src/emulator/cpu.rs:482:21
[INFO] [stdout]     |
[INFO] [stdout] 482 |             0x5B => self.registers.e = self.registers.e,
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless assignment of field of type `u8` to itself
[INFO] [stdout]    --> src/emulator/cpu.rs:509:21
[INFO] [stdout]     |
[INFO] [stdout] 509 |             0x64 => self.registers.h = self.registers.h,
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless assignment of field of type `u8` to itself
[INFO] [stdout]    --> src/emulator/cpu.rs:536:21
[INFO] [stdout]     |
[INFO] [stdout] 536 |             0x6D => self.registers.l = self.registers.l,
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless assignment of field of type `u8` to itself
[INFO] [stdout]    --> src/emulator/cpu.rs:590:21
[INFO] [stdout]     |
[INFO] [stdout] 590 |             0x7F => self.registers.a = self.registers.a,
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SCREEN_WIDTH` is never used
[INFO] [stdout]   --> src/main.rs:15:7
[INFO] [stdout]    |
[INFO] [stdout] 15 | const SCREEN_WIDTH: u32 = 160;
[INFO] [stdout]    |       ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SCREEN_HEIGHT` is never used
[INFO] [stdout]   --> src/main.rs:16:7
[INFO] [stdout]    |
[INFO] [stdout] 16 | const SCREEN_HEIGHT: u32 = 144;
[INFO] [stdout]    |       ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `SDL` is never constructed
[INFO] [stdout]   --> src/main.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | enum RugbError {
[INFO] [stdout]    |      --------- variant in this enum
[INFO] [stdout] 20 |     Emulator(EmulatorError),
[INFO] [stdout] 21 |     SDL(String),
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `RugbError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `pc` and `halted` are never used
[INFO] [stdout]   --> src/emulator/cpu.rs:48:19
[INFO] [stdout]    |
[INFO] [stdout] 36 | impl CPU {
[INFO] [stdout]    | -------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 48 |     pub(super) fn pc(&self) -> u16 {
[INFO] [stdout]    |                   ^^
[INFO] [stdout] ...
[INFO] [stdout] 52 |     pub(super) fn halted(&self) -> bool {
[INFO] [stdout]    |                   ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `IO_START` is never used
[INFO] [stdout]   --> src/emulator/cpu/mmu.rs:23:7
[INFO] [stdout]    |
[INFO] [stdout] 23 | const IO_START: u16 = 0xFF00;
[INFO] [stdout]    |       ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `joypad` is never read
[INFO] [stdout]   --> src/emulator/cpu/mmu.rs:55:5
[INFO] [stdout]    |
[INFO] [stdout] 50 | pub(super) struct MMU {
[INFO] [stdout]    |                   --- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 55 |     joypad: Joypad,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `data` is never read
[INFO] [stdout]  --> src/emulator/cpu/mmu/joypad.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub(super) struct Joypad {
[INFO] [stdout]   |                   ------ field in this struct
[INFO] [stdout] 2 |     data: u8
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `read` and `write` are never used
[INFO] [stdout]   --> src/emulator/cpu/mmu/joypad.rs:12:19
[INFO] [stdout]    |
[INFO] [stdout]  5 | impl Joypad {
[INFO] [stdout]    | ----------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 12 |     pub(super) fn read(&self) -> u8 {
[INFO] [stdout]    |                   ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 16 |     pub(super) fn write(&mut self, value: u8) {
[INFO] [stdout]    |                   ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple methods are never used
[INFO] [stdout]    --> src/emulator/cpu/registers.rs:39:19
[INFO] [stdout]     |
[INFO] [stdout]  23 | impl Registers {
[INFO] [stdout]     | -------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout]  39 |     pub(super) fn reset(&mut self) {
[INFO] [stdout]     |                   ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 112 |     pub(super) fn inc_bc(&mut self) {
[INFO] [stdout]     |                   ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 116 |     pub(super) fn dec_bc(&mut self) {
[INFO] [stdout]     |                   ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 120 |     pub(super) fn inc_de(&mut self) {
[INFO] [stdout]     |                   ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 124 |     pub(super) fn dec_de(&mut self) {
[INFO] [stdout]     |                   ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 128 |     pub(super) fn inc_hl(&mut self) {
[INFO] [stdout]     |                   ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 132 |     pub(super) fn dec_hl(&mut self) {
[INFO] [stdout]     |                   ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 47s
[INFO] running `Command { std: "docker" "inspect" "0f180f8919730e5835a20a5d7d0ec2b6122f11b545ea8d2b9a738245588affca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f180f8919730e5835a20a5d7d0ec2b6122f11b545ea8d2b9a738245588affca", kill_on_drop: false }`
[INFO] [stdout] 0f180f8919730e5835a20a5d7d0ec2b6122f11b545ea8d2b9a738245588affca
