[INFO] cloning repository https://github.com/ShiroUsagi-san/yage
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ShiroUsagi-san/yage" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FShiroUsagi-san%2Fyage", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FShiroUsagi-san%2Fyage'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c36f89aad9581b59cd4fdb5a2f2f86a8dd8575dd
[INFO] checking ShiroUsagi-san/yage against master#33fdb797f59421c7bbecaa4588ed5d7a31a9494a for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FShiroUsagi-san%2Fyage" "/workspace/builds/worker-97/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-97/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ShiroUsagi-san/yage on toolchain 33fdb797f59421c7bbecaa4588ed5d7a31a9494a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ShiroUsagi-san/yage
[INFO] finished tweaking git repo https://github.com/ShiroUsagi-san/yage
[INFO] tweaked toml for git repo https://github.com/ShiroUsagi-san/yage written to /workspace/builds/worker-97/source/Cargo.toml
[INFO] crate git repo https://github.com/ShiroUsagi-san/yage already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 85b0ca59eb109a5beeee0ef316eb16cdde68d0d3354bcba6cd9e483fc279ea09
[INFO] running `Command { std: "docker" "start" "-a" "85b0ca59eb109a5beeee0ef316eb16cdde68d0d3354bcba6cd9e483fc279ea09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "85b0ca59eb109a5beeee0ef316eb16cdde68d0d3354bcba6cd9e483fc279ea09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "85b0ca59eb109a5beeee0ef316eb16cdde68d0d3354bcba6cd9e483fc279ea09", kill_on_drop: false }`
[INFO] [stdout] 85b0ca59eb109a5beeee0ef316eb16cdde68d0d3354bcba6cd9e483fc279ea09
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6e20e4bd92387f9d0ab54c2381eb1fabe722028819eab212b388c08cdd360c80
[INFO] running `Command { std: "docker" "start" "-a" "6e20e4bd92387f9d0ab54c2381eb1fabe722028819eab212b388c08cdd360c80", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking yage v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `instruction::ArithmeticTarget`
[INFO] [stdout]  --> src/cpu/cpu.rs:1:18
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::cpu::{instruction::ArithmeticTarget, instruction::Instruction, register::Registers};
[INFO] [stdout]   |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `instruction::ArithmeticTarget`
[INFO] [stdout]  --> src/cpu/cpu.rs:1:18
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::cpu::{instruction::ArithmeticTarget, instruction::Instruction, register::Registers};
[INFO] [stdout]   |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Cpu`
[INFO] [stdout]  --> src/cpu/cpu.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Cpu {
[INFO] [stdout]   |            ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `MemoryBus`
[INFO] [stdout]   --> src/cpu/cpu.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | struct MemoryBus {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `read_byte`
[INFO] [stdout]   --> src/cpu/cpu.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 17 |     fn read_byte(&self, address: u16) -> u8 {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `run`
[INFO] [stdout]   --> src/cpu/cpu.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 22 |     pub fn run(&mut self) {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `step`
[INFO] [stdout]   --> src/cpu/cpu.rs:27:8
[INFO] [stdout]    |
[INFO] [stdout] 27 |     fn step(&mut self) {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `execute`
[INFO] [stdout]   --> src/cpu/cpu.rs:40:8
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn execute(&mut self, ins: Instruction) -> u16 {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add`
[INFO] [stdout]   --> src/cpu/cpu.rs:64:8
[INFO] [stdout]    |
[INFO] [stdout] 64 |     fn add(&mut self, val: u8) -> u8 {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `Instruction`
[INFO] [stdout]  --> src/cpu/instruction.rs:1:10
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub enum Instruction {
[INFO] [stdout]   |          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `ExtendedTarget`
[INFO] [stdout]   --> src/cpu/instruction.rs:39:10
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub enum ExtendedTarget {
[INFO] [stdout]    |          ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `LoadByteTarget`
[INFO] [stdout]   --> src/cpu/instruction.rs:44:10
[INFO] [stdout]    |
[INFO] [stdout] 44 | pub enum LoadByteTarget {
[INFO] [stdout]    |          ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `LoadByteSource`
[INFO] [stdout]   --> src/cpu/instruction.rs:54:10
[INFO] [stdout]    |
[INFO] [stdout] 54 | pub enum LoadByteSource {
[INFO] [stdout]    |          ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `LoadType`
[INFO] [stdout]   --> src/cpu/instruction.rs:65:10
[INFO] [stdout]    |
[INFO] [stdout] 65 | pub enum LoadType {
[INFO] [stdout]    |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `JumpParameter`
[INFO] [stdout]   --> src/cpu/instruction.rs:68:10
[INFO] [stdout]    |
[INFO] [stdout] 68 | pub enum JumpParameter {
[INFO] [stdout]    |          ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `ConditionnalTarget`
[INFO] [stdout]   --> src/cpu/instruction.rs:77:10
[INFO] [stdout]    |
[INFO] [stdout] 77 | pub enum ConditionnalTarget {
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `ArithmeticTarget`
[INFO] [stdout]   --> src/cpu/instruction.rs:88:10
[INFO] [stdout]    |
[INFO] [stdout] 88 | pub enum ArithmeticTarget {
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `StackTarget`
[INFO] [stdout]    --> src/cpu/instruction.rs:104:10
[INFO] [stdout]     |
[INFO] [stdout] 104 | pub enum StackTarget {
[INFO] [stdout]     |          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `JumpTest`
[INFO] [stdout]    --> src/cpu/instruction.rs:112:10
[INFO] [stdout]     |
[INFO] [stdout] 112 | pub enum JumpTest {
[INFO] [stdout]     |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_bytes`
[INFO] [stdout]    --> src/cpu/instruction.rs:121:12
[INFO] [stdout]     |
[INFO] [stdout] 121 |     pub fn from_bytes(byte: u8) -> Option<Instruction> {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/cpu/register.rs:94:12
[INFO] [stdout]    |
[INFO] [stdout] 94 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_bc`
[INFO] [stdout]    --> src/cpu/register.rs:107:12
[INFO] [stdout]     |
[INFO] [stdout] 107 |     pub fn get_bc(&self) -> u16 {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_bc`
[INFO] [stdout]    --> src/cpu/register.rs:111:12
[INFO] [stdout]     |
[INFO] [stdout] 111 |     pub fn set_bc(&mut self, value: u16) {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_af`
[INFO] [stdout]    --> src/cpu/register.rs:116:12
[INFO] [stdout]     |
[INFO] [stdout] 116 |     pub fn get_af(&self) -> u16 {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_af`
[INFO] [stdout]    --> src/cpu/register.rs:120:12
[INFO] [stdout]     |
[INFO] [stdout] 120 |     pub fn set_af(&mut self, value: u16) {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_de`
[INFO] [stdout]    --> src/cpu/register.rs:124:12
[INFO] [stdout]     |
[INFO] [stdout] 124 |     pub fn get_de(&self) -> u16 {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_de`
[INFO] [stdout]    --> src/cpu/register.rs:128:12
[INFO] [stdout]     |
[INFO] [stdout] 128 |     pub fn set_de(&mut self, value: u16) {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_hl`
[INFO] [stdout]    --> src/cpu/register.rs:133:12
[INFO] [stdout]     |
[INFO] [stdout] 133 |     pub fn get_hl(&self) -> u16 {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_hl`
[INFO] [stdout]    --> src/cpu/register.rs:137:12
[INFO] [stdout]     |
[INFO] [stdout] 137 |     pub fn set_hl(&mut self, value: u16) {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `or_patterns` has been stable since 1.53.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/main.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(or_patterns)]
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Cpu`
[INFO] [stdout]  --> src/cpu/cpu.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Cpu {
[INFO] [stdout]   |            ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `MemoryBus`
[INFO] [stdout]   --> src/cpu/cpu.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | struct MemoryBus {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `read_byte`
[INFO] [stdout]   --> src/cpu/cpu.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 17 |     fn read_byte(&self, address: u16) -> u8 {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `run`
[INFO] [stdout]   --> src/cpu/cpu.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 22 |     pub fn run(&mut self) {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `step`
[INFO] [stdout]   --> src/cpu/cpu.rs:27:8
[INFO] [stdout]    |
[INFO] [stdout] 27 |     fn step(&mut self) {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `execute`
[INFO] [stdout]   --> src/cpu/cpu.rs:40:8
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn execute(&mut self, ins: Instruction) -> u16 {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add`
[INFO] [stdout]   --> src/cpu/cpu.rs:64:8
[INFO] [stdout]    |
[INFO] [stdout] 64 |     fn add(&mut self, val: u8) -> u8 {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `Instruction`
[INFO] [stdout]  --> src/cpu/instruction.rs:1:10
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub enum Instruction {
[INFO] [stdout]   |          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `ExtendedTarget`
[INFO] [stdout]   --> src/cpu/instruction.rs:39:10
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub enum ExtendedTarget {
[INFO] [stdout]    |          ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `LoadByteTarget`
[INFO] [stdout]   --> src/cpu/instruction.rs:44:10
[INFO] [stdout]    |
[INFO] [stdout] 44 | pub enum LoadByteTarget {
[INFO] [stdout]    |          ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `LoadByteSource`
[INFO] [stdout]   --> src/cpu/instruction.rs:54:10
[INFO] [stdout]    |
[INFO] [stdout] 54 | pub enum LoadByteSource {
[INFO] [stdout]    |          ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `LoadType`
[INFO] [stdout]   --> src/cpu/instruction.rs:65:10
[INFO] [stdout]    |
[INFO] [stdout] 65 | pub enum LoadType {
[INFO] [stdout]    |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `JumpParameter`
[INFO] [stdout]   --> src/cpu/instruction.rs:68:10
[INFO] [stdout]    |
[INFO] [stdout] 68 | pub enum JumpParameter {
[INFO] [stdout]    |          ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `ConditionnalTarget`
[INFO] [stdout]   --> src/cpu/instruction.rs:77:10
[INFO] [stdout]    |
[INFO] [stdout] 77 | pub enum ConditionnalTarget {
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `ArithmeticTarget`
[INFO] [stdout]   --> src/cpu/instruction.rs:88:10
[INFO] [stdout]    |
[INFO] [stdout] 88 | pub enum ArithmeticTarget {
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `StackTarget`
[INFO] [stdout]    --> src/cpu/instruction.rs:104:10
[INFO] [stdout]     |
[INFO] [stdout] 104 | pub enum StackTarget {
[INFO] [stdout]     |          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `JumpTest`
[INFO] [stdout]    --> src/cpu/instruction.rs:112:10
[INFO] [stdout]     |
[INFO] [stdout] 112 | pub enum JumpTest {
[INFO] [stdout]     |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_bytes`
[INFO] [stdout]    --> src/cpu/instruction.rs:121:12
[INFO] [stdout]     |
[INFO] [stdout] 121 |     pub fn from_bytes(byte: u8) -> Option<Instruction> {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_bc`
[INFO] [stdout]    --> src/cpu/register.rs:107:12
[INFO] [stdout]     |
[INFO] [stdout] 107 |     pub fn get_bc(&self) -> u16 {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_bc`
[INFO] [stdout]    --> src/cpu/register.rs:111:12
[INFO] [stdout]     |
[INFO] [stdout] 111 |     pub fn set_bc(&mut self, value: u16) {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_af`
[INFO] [stdout]    --> src/cpu/register.rs:116:12
[INFO] [stdout]     |
[INFO] [stdout] 116 |     pub fn get_af(&self) -> u16 {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_af`
[INFO] [stdout]    --> src/cpu/register.rs:120:12
[INFO] [stdout]     |
[INFO] [stdout] 120 |     pub fn set_af(&mut self, value: u16) {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_de`
[INFO] [stdout]    --> src/cpu/register.rs:124:12
[INFO] [stdout]     |
[INFO] [stdout] 124 |     pub fn get_de(&self) -> u16 {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_de`
[INFO] [stdout]    --> src/cpu/register.rs:128:12
[INFO] [stdout]     |
[INFO] [stdout] 128 |     pub fn set_de(&mut self, value: u16) {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_hl`
[INFO] [stdout]    --> src/cpu/register.rs:133:12
[INFO] [stdout]     |
[INFO] [stdout] 133 |     pub fn get_hl(&self) -> u16 {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_hl`
[INFO] [stdout]    --> src/cpu/register.rs:137:12
[INFO] [stdout]     |
[INFO] [stdout] 137 |     pub fn set_hl(&mut self, value: u16) {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/cpu/register.rs:42:9
[INFO] [stdout]    |
[INFO] [stdout] 42 |         writeln!(f, "{:b}", self.0);
[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]    = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `or_patterns` has been stable since 1.53.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/main.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(or_patterns)]
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/cpu/register.rs:43:9
[INFO] [stdout]    |
[INFO] [stdout] 43 |         writeln!(f, "ZERO FLAG: {}", self.is_zero());
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/cpu/register.rs:44:9
[INFO] [stdout]    |
[INFO] [stdout] 44 |         writeln!(f, "SUBSTRACTION FLAG: {}", self.is_substraction());
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/cpu/register.rs:45:9
[INFO] [stdout]    |
[INFO] [stdout] 45 |         writeln!(f, "HALF CARRY FLAG: {}", self.is_half_carry());
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/cpu/register.rs:68:9
[INFO] [stdout]    |
[INFO] [stdout] 68 |         &self.toggle_flag(toggle, offset);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 68 |         let _ = &self.toggle_flag(toggle, offset);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/cpu/register.rs:72:9
[INFO] [stdout]    |
[INFO] [stdout] 72 |         &self.toggle_flag(toggle, offset);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 72 |         let _ = &self.toggle_flag(toggle, offset);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/cpu/register.rs:76:9
[INFO] [stdout]    |
[INFO] [stdout] 76 |         &self.toggle_flag(toggle, offset);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 76 |         let _ = &self.toggle_flag(toggle, offset);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/cpu/register.rs:81:9
[INFO] [stdout]    |
[INFO] [stdout] 81 |         &self.toggle_flag(toggle, offset);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 81 |         let _ = &self.toggle_flag(toggle, offset);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 37 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/cpu/register.rs:42:9
[INFO] [stdout]    |
[INFO] [stdout] 42 |         writeln!(f, "{:b}", self.0);
[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]    = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/cpu/register.rs:43:9
[INFO] [stdout]    |
[INFO] [stdout] 43 |         writeln!(f, "ZERO FLAG: {}", self.is_zero());
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/cpu/register.rs:44:9
[INFO] [stdout]    |
[INFO] [stdout] 44 |         writeln!(f, "SUBSTRACTION FLAG: {}", self.is_substraction());
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/cpu/register.rs:45:9
[INFO] [stdout]    |
[INFO] [stdout] 45 |         writeln!(f, "HALF CARRY FLAG: {}", self.is_half_carry());
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/cpu/register.rs:68:9
[INFO] [stdout]    |
[INFO] [stdout] 68 |         &self.toggle_flag(toggle, offset);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 68 |         let _ = &self.toggle_flag(toggle, offset);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/cpu/register.rs:72:9
[INFO] [stdout]    |
[INFO] [stdout] 72 |         &self.toggle_flag(toggle, offset);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 72 |         let _ = &self.toggle_flag(toggle, offset);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/cpu/register.rs:76:9
[INFO] [stdout]    |
[INFO] [stdout] 76 |         &self.toggle_flag(toggle, offset);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 76 |         let _ = &self.toggle_flag(toggle, offset);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/cpu/register.rs:81:9
[INFO] [stdout]    |
[INFO] [stdout] 81 |         &self.toggle_flag(toggle, offset);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 81 |         let _ = &self.toggle_flag(toggle, offset);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 36 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.12s
[INFO] running `Command { std: "docker" "inspect" "6e20e4bd92387f9d0ab54c2381eb1fabe722028819eab212b388c08cdd360c80", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e20e4bd92387f9d0ab54c2381eb1fabe722028819eab212b388c08cdd360c80", kill_on_drop: false }`
[INFO] [stdout] 6e20e4bd92387f9d0ab54c2381eb1fabe722028819eab212b388c08cdd360c80