[INFO] cloning repository https://github.com/quirinux/rust-gboy
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/quirinux/rust-gboy" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fquirinux%2Frust-gboy", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fquirinux%2Frust-gboy'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 929efa98157ea63f0c307053af1334cd1122dfb0
[INFO] checking quirinux/rust-gboy against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fquirinux%2Frust-gboy" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/quirinux/rust-gboy on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/quirinux/rust-gboy
[INFO] finished tweaking git repo https://github.com/quirinux/rust-gboy
[INFO] tweaked toml for git repo https://github.com/quirinux/rust-gboy written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/quirinux/rust-gboy already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--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 c_vec v1.3.3
[INFO] [stderr]   Downloaded regex v1.2.1
[INFO] [stderr]   Downloaded regex-syntax v0.6.11
[INFO] [stderr]   Downloaded tui v0.5.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 6f76b9d65274255bb7ba12192d91c94781df7ac79902d7450fbb20d30686ec4c
[INFO] running `Command { std: "docker" "start" "-a" "6f76b9d65274255bb7ba12192d91c94781df7ac79902d7450fbb20d30686ec4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6f76b9d65274255bb7ba12192d91c94781df7ac79902d7450fbb20d30686ec4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f76b9d65274255bb7ba12192d91c94781df7ac79902d7450fbb20d30686ec4c", kill_on_drop: false }`
[INFO] [stdout] 6f76b9d65274255bb7ba12192d91c94781df7ac79902d7450fbb20d30686ec4c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 7b8642cb240f232cc25860667536c28e0876b7bc1ba64ed99ae2f212d24a83d0
[INFO] running `Command { std: "docker" "start" "-a" "7b8642cb240f232cc25860667536c28e0876b7bc1ba64ed99ae2f212d24a83d0", kill_on_drop: false }`
[INFO] [stderr]    Compiling sdl2 v0.32.2
[INFO] [stderr]    Compiling sdl2-sys v0.32.6
[INFO] [stderr]     Checking termion v1.5.3
[INFO] [stderr]     Checking regex v1.2.1
[INFO] [stderr]    Compiling structopt-derive v0.2.18
[INFO] [stderr]     Checking tui v0.5.1
[INFO] [stderr]     Checking env_logger v0.6.2
[INFO] [stderr]     Checking structopt v0.2.18
[INFO] [stderr]     Checking gboy v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `thread`
[INFO] [stdout]  --> src/main.rs:6:11
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::{thread};
[INFO] [stdout]   |           ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `LevelFilter`, `Record`
[INFO] [stdout]   --> src/main.rs:12:11
[INFO] [stdout]    |
[INFO] [stdout] 12 | use log::{Record, LevelFilter};
[INFO] [stdout]    |           ^^^^^^  ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `env_logger::Builder`
[INFO] [stdout]   --> src/main.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use env_logger::Builder;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `util::*`
[INFO] [stdout]  --> src/gboy/mod.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use util::*;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Color`
[INFO] [stdout]  --> src/gboy/debugger/mod.rs:6:18
[INFO] [stdout]   |
[INFO] [stdout] 6 | use tui::style::{Color, Modifier, Style};
[INFO] [stdout]   |                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::cpu::*`
[INFO] [stdout]   --> src/gboy/debugger/mod.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use super::cpu::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `debugger::*`
[INFO] [stdout]  --> src/gboy/mod.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use debugger::*;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::super::*`
[INFO] [stdout]  --> src/gboy/cpu/optcode.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use super::super::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::super::*`
[INFO] [stdout]  --> src/gboy/cpu/debugger.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use super::super::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/gboy/cpu/registers.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |         (0b0000_0001 << position)
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::cartridge::*`
[INFO] [stdout]   --> src/gboy/cpu/mod.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use super::cartridge::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `timer::*`
[INFO] [stdout]   --> src/gboy/cpu/mod.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use timer::*;
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `log::Level`
[INFO] [stdout]   --> src/gboy/cpu/mod.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use log::Level;
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `thread`
[INFO] [stdout]  --> src/main.rs:6:11
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::{thread};
[INFO] [stdout]   |           ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `LevelFilter`, `Record`
[INFO] [stdout]   --> src/main.rs:12:11
[INFO] [stdout]    |
[INFO] [stdout] 12 | use log::{Record, LevelFilter};
[INFO] [stdout]    |           ^^^^^^  ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `env_logger::Builder`
[INFO] [stdout]   --> src/main.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use env_logger::Builder;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `util::*`
[INFO] [stdout]  --> src/gboy/mod.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use util::*;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Color`
[INFO] [stdout]  --> src/gboy/debugger/mod.rs:6:18
[INFO] [stdout]   |
[INFO] [stdout] 6 | use tui::style::{Color, Modifier, Style};
[INFO] [stdout]   |                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::cpu::*`
[INFO] [stdout]   --> src/gboy/debugger/mod.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use super::cpu::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `debugger::*`
[INFO] [stdout]  --> src/gboy/mod.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use debugger::*;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::super::*`
[INFO] [stdout]  --> src/gboy/cpu/optcode.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use super::super::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::super::*`
[INFO] [stdout]  --> src/gboy/cpu/debugger.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use super::super::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/gboy/cpu/registers.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |         (0b0000_0001 << position)
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::cartridge::*`
[INFO] [stdout]   --> src/gboy/cpu/mod.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use super::cartridge::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `timer::*`
[INFO] [stdout]   --> src/gboy/cpu/mod.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use timer::*;
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `log::Level`
[INFO] [stdout]   --> src/gboy/cpu/mod.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use log::Level;
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/gboy/cpu/timer.rs:118:13
[INFO] [stdout]     |
[INFO] [stdout] 118 |             OptCode::LDNn(RegisterType::A, RegisterType::A) |
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:57:9
[INFO] [stdout]    |
[INFO] [stdout] 57 |     let mut debugger : Option<Box<dyn gboy::cpu::CpuDebugger>> = if opt.debugger {
[INFO] [stdout]    |         ----^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/gboy/cpu/timer.rs:118:13
[INFO] [stdout]     |
[INFO] [stdout] 118 |             OptCode::LDNn(RegisterType::A, RegisterType::A) |
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/gboy/cpu/mod.rs:36:37
[INFO] [stdout]    |
[INFO] [stdout] 36 | pub fn initialize(gamerom: Vec<u8>, mut debugger: Option<Box<dyn CpuDebugger>>) -> Cpu {
[INFO] [stdout]    |                                     ----^^^^^^^^
[INFO] [stdout]    |                                     |
[INFO] [stdout]    |                                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/gboy/cpu/mod.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 38 |     let mut cartridge = super::cartridge::new(gamerom);
[INFO] [stdout]    |         ----^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/gboy/cpu/mod.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 39 |     let mut memory = super::memorybus::new(cartridge);
[INFO] [stdout]    |         ----^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:57:9
[INFO] [stdout]    |
[INFO] [stdout] 57 |     let mut debugger : Option<Box<dyn gboy::cpu::CpuDebugger>> = if opt.debugger {
[INFO] [stdout]    |         ----^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/gboy/cpu/mod.rs:36:37
[INFO] [stdout]    |
[INFO] [stdout] 36 | pub fn initialize(gamerom: Vec<u8>, mut debugger: Option<Box<dyn CpuDebugger>>) -> Cpu {
[INFO] [stdout]    |                                     ----^^^^^^^^
[INFO] [stdout]    |                                     |
[INFO] [stdout]    |                                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/gboy/cpu/mod.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 38 |     let mut cartridge = super::cartridge::new(gamerom);
[INFO] [stdout]    |         ----^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/gboy/cpu/mod.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 39 |     let mut memory = super::memorybus::new(cartridge);
[INFO] [stdout]    |         ----^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Subt`
[INFO] [stdout]   --> src/gboy/cpu/registers.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     Subt,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_half_carry`
[INFO] [stdout]   --> src/gboy/cpu/registers.rs:62:12
[INFO] [stdout]    |
[INFO] [stdout] 62 |     pub fn set_half_carry(&mut self) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_carry`
[INFO] [stdout]   --> src/gboy/cpu/registers.rs:70:12
[INFO] [stdout]    |
[INFO] [stdout] 70 |     pub fn set_carry(&mut self) {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `F`
[INFO] [stdout]    --> src/gboy/cpu/registers.rs:129:5
[INFO] [stdout]     |
[INFO] [stdout] 129 |     F,
[INFO] [stdout]     |     ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `G`
[INFO] [stdout]    --> src/gboy/cpu/registers.rs:130:5
[INFO] [stdout]     |
[INFO] [stdout] 130 |     G,
[INFO] [stdout]     |     ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `PC`
[INFO] [stdout]    --> src/gboy/cpu/registers.rs:139:5
[INFO] [stdout]     |
[INFO] [stdout] 139 |     PC,
[INFO] [stdout]     |     ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `CC`
[INFO] [stdout]    --> src/gboy/cpu/registers.rs:141:5
[INFO] [stdout]     |
[INFO] [stdout] 141 |     CC,
[INFO] [stdout]     |     ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_bitstate`
[INFO] [stdout]    --> src/gboy/cpu/registers.rs:238:12
[INFO] [stdout]     |
[INFO] [stdout] 238 |     pub fn set_bitstate(&mut self, rt: &RegisterType, position: u8) {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `dec_nn`
[INFO] [stdout]    --> src/gboy/cpu/instructions.rs:198:8
[INFO] [stdout]     |
[INFO] [stdout] 198 |     fn dec_nn(&mut self, rt: RegisterType) {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `NONE_LOG_LEVEL`
[INFO] [stdout]   --> src/main.rs:17:1
[INFO] [stdout]    |
[INFO] [stdout] 17 | const NONE_LOG_LEVEL: usize = 0;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Subt`
[INFO] [stdout]   --> src/gboy/cpu/registers.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     Subt,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_half_carry`
[INFO] [stdout]   --> src/gboy/cpu/registers.rs:62:12
[INFO] [stdout]    |
[INFO] [stdout] 62 |     pub fn set_half_carry(&mut self) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_carry`
[INFO] [stdout]   --> src/gboy/cpu/registers.rs:70:12
[INFO] [stdout]    |
[INFO] [stdout] 70 |     pub fn set_carry(&mut self) {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/gboy/debugger/mod.rs:139:9
[INFO] [stdout]     |
[INFO] [stdout] 139 |         self.render();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `F`
[INFO] [stdout]    --> src/gboy/cpu/registers.rs:129:5
[INFO] [stdout]     |
[INFO] [stdout] 129 |     F,
[INFO] [stdout]     |     ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `G`
[INFO] [stdout]    --> src/gboy/cpu/registers.rs:130:5
[INFO] [stdout]     |
[INFO] [stdout] 130 |     G,
[INFO] [stdout]     |     ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `PC`
[INFO] [stdout]    --> src/gboy/cpu/registers.rs:139:5
[INFO] [stdout]     |
[INFO] [stdout] 139 |     PC,
[INFO] [stdout]     |     ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `CC`
[INFO] [stdout]    --> src/gboy/cpu/registers.rs:141:5
[INFO] [stdout]     |
[INFO] [stdout] 141 |     CC,
[INFO] [stdout]     |     ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_bitstate`
[INFO] [stdout]    --> src/gboy/cpu/registers.rs:238:12
[INFO] [stdout]     |
[INFO] [stdout] 238 |     pub fn set_bitstate(&mut self, rt: &RegisterType, position: u8) {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/gboy/debugger/mod.rs:145:9
[INFO] [stdout]     |
[INFO] [stdout] 145 |         self.render();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `dec_nn`
[INFO] [stdout]    --> src/gboy/cpu/instructions.rs:198:8
[INFO] [stdout]     |
[INFO] [stdout] 198 |     fn dec_nn(&mut self, rt: RegisterType) {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `NONE_LOG_LEVEL`
[INFO] [stdout]   --> src/main.rs:17:1
[INFO] [stdout]    |
[INFO] [stdout] 17 | const NONE_LOG_LEVEL: usize = 0;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/gboy/debugger/mod.rs:152:9
[INFO] [stdout]     |
[INFO] [stdout] 152 |         self.render();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 31 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/gboy/debugger/mod.rs:139:9
[INFO] [stdout]     |
[INFO] [stdout] 139 |         self.render();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/gboy/debugger/mod.rs:145:9
[INFO] [stdout]     |
[INFO] [stdout] 145 |         self.render();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/gboy/debugger/mod.rs:152:9
[INFO] [stdout]     |
[INFO] [stdout] 152 |         self.render();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 31 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.97s
[INFO] running `Command { std: "docker" "inspect" "7b8642cb240f232cc25860667536c28e0876b7bc1ba64ed99ae2f212d24a83d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b8642cb240f232cc25860667536c28e0876b7bc1ba64ed99ae2f212d24a83d0", kill_on_drop: false }`
[INFO] [stdout] 7b8642cb240f232cc25860667536c28e0876b7bc1ba64ed99ae2f212d24a83d0