[INFO] cloning repository https://github.com/ysenko/ch8-emu
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ysenko/ch8-emu" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fysenko%2Fch8-emu", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fysenko%2Fch8-emu'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b8e17a6c53f553ab0f203106d58463603f61de0e
[INFO] testing ysenko/ch8-emu against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fysenko%2Fch8-emu" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/ysenko/ch8-emu
[INFO] finished tweaking git repo https://github.com/ysenko/ch8-emu
[INFO] tweaked toml for git repo https://github.com/ysenko/ch8-emu written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ysenko/ch8-emu 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/ysenko/ch8-emu 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 }`
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[INFO] running `Command { std: "docker" "start" "-a" "1d58586bd1b123913218a3ac8736a619c765cfa4f658bb879361116f4f745cab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1d58586bd1b123913218a3ac8736a619c765cfa4f658bb879361116f4f745cab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d58586bd1b123913218a3ac8736a619c765cfa4f658bb879361116f4f745cab", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
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[INFO] [stdout] warning: unused import: `std::str::FromStr`
[INFO] [stdout]  --> src/chip8/input.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::str::FromStr;
[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::iter`
[INFO] [stdout]  --> src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::iter;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `addr`
[INFO] [stdout]    --> src/chip8.rs:148:29
[INFO] [stdout]     |
[INFO] [stdout] 148 |             Opcode::SysAddr(addr) => {}
[INFO] [stdout]     |                             ^^^^ help: if this is intentional, prefix it with an underscore: `_addr`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `InputError` is never constructed
[INFO] [stdout]   --> src/chip8.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub enum Chip8Error {
[INFO] [stdout]    |          ---------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 21 |     InputError(input::Error),
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Chip8Error` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `stack`, `timers`, and `display` are never read
[INFO] [stdout]   --> src/chip8.rs:52:5
[INFO] [stdout]    |
[INFO] [stdout] 49 | pub struct Chip8 {
[INFO] [stdout]    |            ----- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 52 |     stack: stack::Stack,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 53 |     timers: timers::Timers,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 54 |     display: display::Display,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Chip8` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple methods are never used
[INFO] [stdout]    --> src/chip8.rs:70:12
[INFO] [stdout]     |
[INFO] [stdout]  58 | impl Chip8 {
[INFO] [stdout]     | ---------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout]  70 |     pub fn load_rom(&mut self, rom: &[u8]) {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  77 |     pub fn load_rom_from_file(&mut self, path: &str) -> Result<(), std::io::Error> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 108 |     fn get_pressed_key(&self) -> Option<&str> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 112 |     fn get_pressed_key_u8(&self) -> Result<Option<u8>, Chip8Error> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 118 |     fn execute(&mut self, op: Opcode) -> Result<(), Chip8Error> {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 162 |     fn wait_for_key(&mut self, vx: u8) -> Result<(), Chip8Error> {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 172 |     fn skip_if_pressed(&mut self, vx: u8) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 180 |     fn skip_if_not_pressed(&mut self, vx: u8) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 188 |     fn clear_display(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 192 |     fn draw(&mut self, vx: u8, vy: u8, n: u8) -> Result<(), Chip8Error> {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 211 |     fn load_sprite_addr(&mut self, vx: u8) -> Result<(), Chip8Error> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 218 |     fn subn(&mut self, vx: u8, vy: u8) {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 228 |     fn skip_if_reg_not_equal(&mut self, vx: u8, vy: u8) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 237 |     fn xor(&mut self, vx: u8, vy: u8) {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 246 |     fn store_bcd(&mut self, vx: u8) {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 255 |     fn sub(&mut self, vx: u8, vy: u8) {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 265 |     fn skip_if_not_equal(&mut self, vx: u8, byte: u8) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 272 |     fn skip_if_reg_equal(&mut self, vx: u8, vy: u8) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 281 |     fn skip_if_equal(&mut self, vx: u8, byte: u8) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 288 |     fn shift_right(&mut self, vx: u8) {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 296 |     fn shift_left(&mut self, vx: u8) {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 304 |     fn set_sound_timer(&mut self, vx: u8) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 309 |     fn set_index(&mut self, addr: u16) {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 313 |     fn set_delay_timer(&mut self, vx: u8) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 318 |     fn return_from(&mut self) -> Result<(), Chip8Error> {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 323 |     fn reg_load(&mut self, vx: u8) -> Result<(), Chip8Error> {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 332 |     fn reg_dump(&mut self, vx: u8) -> Result<(), Chip8Error> {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 340 |     fn random(&mut self, vx: u8, byte: u8) {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 345 |     fn or(&mut self, vx: u8, vy: u8) {
[INFO] [stdout]     |        ^^
[INFO] [stdout] ...
[INFO] [stdout] 354 |     fn load_register(&mut self, vx: u8, vy: u8) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 359 |     fn load_delay_timer(&mut self, vx: u8) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 364 |     fn load_byte(&mut self, vx: u8, byte: u8) {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 368 |     fn jump_v0(&mut self, addr: u16) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 372 |     fn jump(&mut self, addr: u16) {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 376 |     fn call(&mut self, addr: u16) -> Result<(), Chip8Error> {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 382 |     fn and(&mut self, vx: u8, vy: u8) {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 391 |     fn add_reg(&mut self, vx: u8, vy: u8) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 401 |     fn add_vx_byte(&mut self, vx: u8, val: u8) {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 406 |     fn add_i_vx(&mut self, vx: u8) {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SPRITE_LEN` is never used
[INFO] [stdout]  --> src/chip8/display.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub const SPRITE_LEN: usize = 5;
[INFO] [stdout]   |           ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `SpriteValue` is never used
[INFO] [stdout]  --> src/chip8/display.rs:3:10
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub type SpriteValue = Vec<u8>;
[INFO] [stdout]   |          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `InvalidSprite` and `InvalidDrawPosition` are never constructed
[INFO] [stdout]   --> src/chip8/display.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub enum DisplayError {
[INFO] [stdout]    |          ------------ variants in this enum
[INFO] [stdout] 32 |     InvalidSprite(u8),
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 33 |     InvalidDrawPosition(usize, usize),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `DisplayError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `width`, `height`, and `buffer` are never read
[INFO] [stdout]   --> src/chip8/display.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub struct Display {
[INFO] [stdout]    |            ------- fields in this struct
[INFO] [stdout] 38 |     pub width: usize,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 39 |     pub height: usize,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 40 |
[INFO] [stdout] 41 |     buffer: [[u8; BUFFER_WIDTH]; BUFFER_HEIGHT],
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Display` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `get_sprite_address`, `clear`, `draw_sprite`, and `draw_sprite_row` are never used
[INFO] [stdout]   --> src/chip8/display.rs:53:12
[INFO] [stdout]    |
[INFO] [stdout] 44 | impl Display {
[INFO] [stdout]    | ------------ associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 53 |     pub fn get_sprite_address(sprite: u8) -> Result<usize, DisplayError> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 61 |     pub fn clear(&mut self) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 69 |     pub fn draw_sprite(&mut self, row: usize, col: usize, sprite_value: &SpriteValue) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 77 |     fn draw_sprite_row(&mut self, row: usize, col: usize, value: u8) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `bit_erased` is never used
[INFO] [stdout]    --> src/chip8/display.rs:107:4
[INFO] [stdout]     |
[INFO] [stdout] 107 | fn bit_erased(original: u8, current: u8) -> bool {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `InvalidKey` is never constructed
[INFO] [stdout]  --> src/chip8/input.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub enum Error {
[INFO] [stdout]   |          ----- variant in this enum
[INFO] [stdout] 5 |     InvalidKey(String),
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Error` 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 `get_key` and `get_key_u8` are never used
[INFO] [stdout]   --> src/chip8/input.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl Input {
[INFO] [stdout]    | ---------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 21 |     pub fn get_key(&self) -> Option<&str> {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 33 |     pub fn get_key_u8(&self) -> Result<Option<u8>, Error> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `read_byte` is never used
[INFO] [stdout]   --> src/chip8/memory.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl Memory {
[INFO] [stdout]    | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 20 |     pub fn read_byte(&self, address: usize) -> Result<u8, MemoryError> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `InvalidAddress` and `InvalidOpcode` are never constructed
[INFO] [stdout]  --> src/chip8/opcodes.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub enum OpcodeError {
[INFO] [stdout]   |          ----------- variants in this enum
[INFO] [stdout] 5 |     InvalidAddress(u16),
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 6 |     InvalidOpcode(u16),
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `OpcodeError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Opcode` is never used
[INFO] [stdout]   --> src/chip8/opcodes.rs:10:10
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub enum Opcode {
[INFO] [stdout]    |          ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Instruction` is never constructed
[INFO] [stdout]   --> src/chip8/opcodes.rs:70:8
[INFO] [stdout]    |
[INFO] [stdout] 70 | struct Instruction {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple methods are never used
[INFO] [stdout]    --> src/chip8/opcodes.rs:84:8
[INFO] [stdout]     |
[INFO] [stdout]  83 | impl Instruction {
[INFO] [stdout]     | ---------------- methods in this implementation
[INFO] [stdout]  84 |     fn get_address(&self) -> Result<u16, OpcodeError> {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  94 |     fn get_code(&self) -> u8 {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  98 |     fn get_n(&self) -> u8 {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 102 |     fn get_x(&self) -> u8 {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 106 |     fn get_y(&self) -> u8 {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 110 |     fn get_kk(&self) -> u8 {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 114 |     fn get_byte(&self) -> u8 {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `from_bytes` is never used
[INFO] [stdout]    --> src/chip8/opcodes.rs:120:12
[INFO] [stdout]     |
[INFO] [stdout] 119 | impl Opcode {
[INFO] [stdout]     | ----------- associated function in this implementation
[INFO] [stdout] 120 |     pub fn from_bytes(msb: u8, lsb: u8) -> Result<Opcode, OpcodeError> {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `v` and `i` are never read
[INFO] [stdout]  --> src/chip8/registers.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Registers {
[INFO] [stdout]   |            --------- fields in this struct
[INFO] [stdout] 5 |     v: [u8; DATA_REGISTER_COUNT],
[INFO] [stdout]   |     ^
[INFO] [stdout] 6 |     pub i: u16,
[INFO] [stdout]   |         ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Registers` 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 `read_v` and `write_v` are never used
[INFO] [stdout]   --> src/chip8/registers.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl Registers {
[INFO] [stdout]    | -------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 19 |     pub fn read_v(&self, register: u8) -> u8 {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 23 |     pub fn write_v(&mut self, register: u8, value: u8) {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `StackOverflow` and `StackUnderflow` are never constructed
[INFO] [stdout]  --> src/chip8/stack.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub enum StackError {
[INFO] [stdout]   |          ---------- variants in this enum
[INFO] [stdout] 3 |     StackOverflow,
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 4 |     StackUnderflow,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `StackError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `stack` and `sp` are never read
[INFO] [stdout]   --> src/chip8/stack.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct Stack {
[INFO] [stdout]    |            ----- fields in this struct
[INFO] [stdout] 11 |     stack: [u16; STACK_SIZE], // Array to hold 16 levels of the stack
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 12 |     sp: usize,                // Stack pointer to track the current level (0-15)
[INFO] [stdout]    |     ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Stack` 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 `push` and `pop` are never used
[INFO] [stdout]   --> src/chip8/stack.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl Stack {
[INFO] [stdout]    | ---------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 24 |     pub fn push(&mut self, value: u16) -> Result<(), StackError> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 35 |     pub fn pop(&mut self) -> Result<u16, StackError> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `delay_timer` and `sound_timer` are never read
[INFO] [stdout]  --> src/chip8/timers.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Timers {
[INFO] [stdout]   |            ------ fields in this struct
[INFO] [stdout] 3 |     delay_timer: u8,
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 4 |     sound_timer: u8,
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Timers` 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 `get_delay_timer`, `set_delay_timer`, `get_sound_timer`, `set_sound_timer`, and `decrement_timers` are never used
[INFO] [stdout]   --> src/chip8/timers.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout]  7 | impl Timers {
[INFO] [stdout]    | ----------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 15 |     pub fn get_delay_timer(&self) -> u8 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 19 |     pub fn set_delay_timer(&mut self, value: u8) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 23 |     pub fn get_sound_timer(&self) -> u8 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 27 |     pub fn set_sound_timer(&mut self, value: u8) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 31 |     pub fn decrement_timers(&mut self) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 39.19s
[INFO] running `Command { std: "docker" "inspect" "45c964ef2b93012a600d4c5b51ac7402deadc684914662081a92f43fbca57cdd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "45c964ef2b93012a600d4c5b51ac7402deadc684914662081a92f43fbca57cdd", kill_on_drop: false }`
[INFO] [stdout] 45c964ef2b93012a600d4c5b51ac7402deadc684914662081a92f43fbca57cdd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e49c87d7941194129af14f7ed1975c97ac2260cae62fa13d3f78736c95bef04e
[INFO] running `Command { std: "docker" "start" "-a" "e49c87d7941194129af14f7ed1975c97ac2260cae62fa13d3f78736c95bef04e", kill_on_drop: false }`
[INFO] [stderr]    Compiling ch8emu v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::str::FromStr`
[INFO] [stdout]  --> src/chip8/input.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::str::FromStr;
[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::iter`
[INFO] [stdout]  --> src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::iter;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `addr`
[INFO] [stdout]    --> src/chip8.rs:148:29
[INFO] [stdout]     |
[INFO] [stdout] 148 |             Opcode::SysAddr(addr) => {}
[INFO] [stdout]     |                             ^^^^ help: if this is intentional, prefix it with an underscore: `_addr`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SPRITE_LEN` is never used
[INFO] [stdout]  --> src/chip8/display.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub const SPRITE_LEN: usize = 5;
[INFO] [stdout]   |           ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `InvalidDrawPosition` is never constructed
[INFO] [stdout]   --> src/chip8/display.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub enum DisplayError {
[INFO] [stdout]    |          ------------ variant in this enum
[INFO] [stdout] 32 |     InvalidSprite(u8),
[INFO] [stdout] 33 |     InvalidDrawPosition(usize, usize),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `DisplayError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Undefined` is never constructed
[INFO] [stdout]   --> src/chip8/opcodes.rs:67:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub enum Opcode {
[INFO] [stdout]    |          ------ variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 67 |     Undefined(u16), // For any opcode that doesn't match the above
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Opcode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/chip8.rs:943:9
[INFO] [stdout]     |
[INFO] [stdout] 943 |         chip8.load_sprites();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 943 |         let _ = chip8.load_sprites();
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.44s
[INFO] running `Command { std: "docker" "inspect" "e49c87d7941194129af14f7ed1975c97ac2260cae62fa13d3f78736c95bef04e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e49c87d7941194129af14f7ed1975c97ac2260cae62fa13d3f78736c95bef04e", kill_on_drop: false }`
[INFO] [stdout] e49c87d7941194129af14f7ed1975c97ac2260cae62fa13d3f78736c95bef04e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 964894c5a052eaf43e494c3e74b3f257340c7dbcd820e5a9e40df3bc1c738c82
[INFO] running `Command { std: "docker" "start" "-a" "964894c5a052eaf43e494c3e74b3f257340c7dbcd820e5a9e40df3bc1c738c82", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `std::str::FromStr`
[INFO] [stderr]  --> src/chip8/input.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::str::FromStr;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::iter`
[INFO] [stderr]  --> src/main.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::iter;
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `addr`
[INFO] [stderr]    --> src/chip8.rs:148:29
[INFO] [stderr]     |
[INFO] [stderr] 148 |             Opcode::SysAddr(addr) => {}
[INFO] [stderr]     |                             ^^^^ help: if this is intentional, prefix it with an underscore: `_addr`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant `SPRITE_LEN` is never used
[INFO] [stderr]  --> src/chip8/display.rs:1:11
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub const SPRITE_LEN: usize = 5;
[INFO] [stderr]   |           ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant `InvalidDrawPosition` is never constructed
[INFO] [stderr]   --> src/chip8/display.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 31 | pub enum DisplayError {
[INFO] [stderr]    |          ------------ variant in this enum
[INFO] [stderr] 32 |     InvalidSprite(u8),
[INFO] [stderr] 33 |     InvalidDrawPosition(usize, usize),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `DisplayError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: variant `Undefined` is never constructed
[INFO] [stderr]   --> src/chip8/opcodes.rs:67:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | pub enum Opcode {
[INFO] [stderr]    |          ------ variant in this enum
[INFO] [stderr] ...
[INFO] [stderr] 67 |     Undefined(u16), // For any opcode that doesn't match the above
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Opcode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/chip8.rs:943:9
[INFO] [stderr]     |
[INFO] [stderr] 943 |         chip8.load_sprites();
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 943 |         let _ = chip8.load_sprites();
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `ch8emu` (bin "ch8emu" test) generated 7 warnings (run `cargo fix --bin "ch8emu" -p ch8emu --tests` to apply 3 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.14s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/ch8emu-07160852ac5b053f)
[INFO] [stdout] 
[INFO] [stdout] running 134 tests
[INFO] [stdout] test chip8::display::tests::draw_sprite ... ok
[INFO] [stdout] test chip8::display::tests::draw_sprite_wraps_around_bottom_edge ... ok
[INFO] [stdout] test chip8::display::tests::test_buffer_initialized_with_zeroes ... ok
[INFO] [stdout] test chip8::display::tests::test_clear ... ok
[INFO] [stdout] test chip8::display::tests::test_bit_erased_all_erased_bits ... ok
[INFO] [stdout] test chip8::display::tests::test_bit_erased_some_erased_bits ... ok
[INFO] [stdout] test chip8::display::tests::test_get_sprite_address_invalid_sprite ... ok
[INFO] [stdout] test chip8::display::tests::draw_sprite_reports_erased_bit ... ok
[INFO] [stdout] test chip8::display::tests::test_get_sprite_address_valid_sprite ... ok
[INFO] [stdout] test chip8::display::tests::test_render_sprite_row_wraps_around_right_edge ... ok
[INFO] [stdout] test chip8::input::tests::test_get_key_u8_invalid_key ... ok
[INFO] [stdout] test chip8::input::tests::test_get_key_u8_valid_key ... ok
[INFO] [stdout] test chip8::input::tests::test_set_key ... ok
[INFO] [stdout] test chip8::memory::tests::test_write_byte ... ok
[INFO] [stdout] test chip8::input::tests::test_clear_key ... ok
[INFO] [stdout] test chip8::memory::tests::test_read_byte ... ok
[INFO] [stdout] test chip8::display::tests::test_new ... ok
[INFO] [stdout] test chip8::input::tests::test_get_key_u8_no_key ... ok
[INFO] [stdout] test chip8::opcodes::tests::test_opcode_from_bytes_call ... ok
[INFO] [stdout] test chip8::opcodes::tests::test_opcode_from_bytes_draw ... ok
[INFO] [stdout] test chip8::opcodes::tests::test_opcode_from_bytes_jump ... ok
[INFO] [stdout] test chip8::opcodes::tests::test_opcode_from_bytes_load_byte ... ok
[INFO] [stdout] test chip8::opcodes::tests::test_opcode_from_bytes_load_delay_timer ... ok
[INFO] [stdout] test chip8::opcodes::tests::test_opcode_from_bytes_load_reg ... ok
[INFO] [stdout] test chip8::opcodes::tests::test_opcode_from_bytes_or ... ok
[INFO] [stdout] test chip8::opcodes::tests::test_opcode_from_bytes_random ... ok
[INFO] [stdout] test chip8::display::tests::test_render_sprite_row ... ok
[INFO] [stdout] test chip8::display::tests::test_render_sprite_row_multiple_buffer_elements ... ok
[INFO] [stdout] test chip8::opcodes::tests::test_opcode_from_bytes_add_reg ... ok
[INFO] [stdout] test chip8::input::tests::test_new_input ... ok
[INFO] [stdout] test chip8::opcodes::tests::test_opcode_from_bytes_jump_v0 ... ok
[INFO] [stdout] test chip8::opcodes::tests::test_opcode_from_bytes_clear_display ... ok
[INFO] [stdout] test chip8::opcodes::tests::test_opcode_from_bytes_load_sprite_addr ... ok
[INFO] [stdout] test chip8::opcodes::tests::test_opcode_from_bytes_add_byte ... ok
[INFO] [stdout] test chip8::opcodes::tests::test_opcode_from_bytes_add_sub ... ok
[INFO] [stdout] test chip8::memory::tests::test_read_byte_out_of_bounds ... ok
[INFO] [stdout] test chip8::opcodes::tests::test_opcode_from_bytes_return ... ok
[INFO] [stdout] test chip8::opcodes::tests::test_opcode_from_bytes_set_delay_timer ... ok
[INFO] [stdout] test chip8::opcodes::tests::test_opcode_from_bytes_set_sound_timer ... ok
[INFO] [stdout] test chip8::opcodes::tests::test_opcode_from_bytes_shift_left ... ok
[INFO] [stdout] test chip8::opcodes::tests::test_opcode_from_bytes_shr ... ok
[INFO] [stdout] test chip8::opcodes::tests::test_opcode_from_bytes_skip_if_equal ... ok
[INFO] [stdout] test chip8::opcodes::tests::test_opcode_from_bytes_skip_if_not_equal ... ok
[INFO] [stdout] test chip8::opcodes::tests::test_opcode_from_bytes_skip_if_reg_not_equal ... ok
[INFO] [stdout] test chip8::opcodes::tests::test_opcode_from_bytes_store_bcd ... ok
[INFO] [stdout] test chip8::opcodes::tests::test_opcode_from_bytes_reg_dump ... ok
[INFO] [stdout] test chip8::opcodes::tests::test_opcode_from_bytes_sys_addr ... ok
[INFO] [stdout] test chip8::opcodes::tests::test_opcode_from_bytes_set_index ... ok
[INFO] [stdout] test chip8::opcodes::tests::test_opcode_from_bytes_skip_if_reg_equal ... ok
[INFO] [stdout] test chip8::opcodes::tests::test_opcode_from_bytes_wait_for_key ... ok
[INFO] [stdout] test chip8::opcodes::tests::test_opcode_from_bytes_skip_if_key_not_pressed ... ok
[INFO] [stdout] test chip8::opcodes::tests::test_opcode_from_bytes_reg_load ... ok
[INFO] [stdout] test chip8::opcodes::tests::test_opcode_from_bytes_skip_if_key_pressed ... ok
[INFO] [stdout] test chip8::opcodes::tests::test_opcode_from_bytes_with_invalid_address ... ok
[INFO] [stdout] test chip8::opcodes::tests::test_opcode_from_bytes_with_invalid_opcode ... ok
[INFO] [stdout] test chip8::opcodes::tests::test_opcode_from_bytes_xor ... ok
[INFO] [stdout] test chip8::registers::tests::test_registers_new ... ok
[INFO] [stdout] test chip8::opcodes::tests::test_opcode_from_str_and ... ok
[INFO] [stdout] test chip8::stack::tests::test_new_stack ... ok
[INFO] [stdout] test chip8::registers::tests::test_write_and_read_data_register ... ok
[INFO] [stdout] test chip8::stack::tests::test_push_full_stack ... ok
[INFO] [stdout] test chip8::registers::tests::test_write_and_read_pc_register ... ok
[INFO] [stdout] test chip8::tests::test_chip8_execute_add_byte ... ok
[INFO] [stdout] test chip8::tests::test_chip8_execute_add_i ... ok
[INFO] [stdout] test chip8::stack::tests::test_push_and_pop ... ok
[INFO] [stdout] test chip8::tests::test_chip8_execute_add_reg_no_overflow ... ok
[INFO] [stdout] test chip8::registers::tests::test_write_and_read_i_register ... ok
[INFO] [stdout] test chip8::tests::test_chip8_execute_and ... ok
[INFO] [stdout] test chip8::stack::tests::test_pop_empty_stack ... ok
[INFO] [stdout] test chip8::tests::test_chip8_execute_add_reg_with_overflow ... ok
[INFO] [stdout] test chip8::tests::test_chip8_execute_call ... ok
[INFO] [stdout] test chip8::tests::test_chip8_execute_call_stack_overflow ... ok
[INFO] [stdout] test chip8::tests::test_chip8_execute_clear_display ... ok
[INFO] [stdout] test chip8::tests::test_chip8_execute_draw ... ok
[INFO] [stdout] test chip8::tests::test_chip8_execute_draw_erased_pixels_reported ... ok
[INFO] [stdout] test chip8::tests::test_chip8_execute_jump_v0 ... ok
[INFO] [stdout] test chip8::tests::test_chip8_execute_load_byte ... ok
[INFO] [stdout] test chip8::tests::test_chip8_execute_load_delay_timer ... ok
[INFO] [stdout] test chip8::tests::test_chip8_execute_load_register ... ok
[INFO] [stdout] test chip8::tests::test_chip8_execute_load_sprite_addr ... ok
[INFO] [stdout] test chip8::tests::test_chip8_execute_or ... ok
[INFO] [stdout] test chip8::tests::test_chip8_execute_jump ... ok
[INFO] [stdout] test chip8::tests::test_chip8_execute_reg_dump_memory_error ... ok
[INFO] [stdout] test chip8::tests::test_chip8_execute_random ... ok
[INFO] [stdout] test chip8::tests::test_chip8_execute_reg_load_memory_error ... ok
[INFO] [stdout] test chip8::tests::test_chip8_execute_return ... ok
[INFO] [stdout] test chip8::tests::test_chip8_execute_reg_dump ... ok
[INFO] [stdout] test chip8::tests::test_chip8_execute_reg_load ... ok
[INFO] [stdout] test chip8::tests::test_chip8_execute_set_sound_timer ... ok
[INFO] [stdout] test chip8::tests::test_chip8_execute_shift_right ... ok
[INFO] [stdout] test chip8::tests::test_chip8_execute_shift_right_overflow ... ok
[INFO] [stdout] test chip8::tests::test_chip8_execute_set_delay_timer ... ok
[INFO] [stdout] test chip8::tests::test_chip8_execute_skip_if_equal_not_skips ... ok
[INFO] [stdout] test chip8::tests::test_chip8_execute_shift_left ... ok
[INFO] [stdout] test chip8::tests::test_chip8_execute_skip_if_equal_skips ... ok
[INFO] [stdout] test chip8::tests::test_chip8_execute_shift_left_overflow ... ok
[INFO] [stdout] test chip8::tests::test_chip8_execute_return_empty_stack ... ok
[INFO] [stdout] test chip8::tests::test_chip8_execute_set_index ... ok
[INFO] [stdout] test chip8::tests::test_chip8_execute_skip_if_not_equal_not_skips ... ok
[INFO] [stdout] test chip8::tests::test_chip8_execute_skip_if_not_equal_skips ... ok
[INFO] [stdout] test chip8::tests::test_chip8_execute_skip_if_not_pressed_not_skips ... ok
[INFO] [stdout] test chip8::tests::test_chip8_execute_skip_if_not_pressed_skips_on_wrong_key_press ... ok
[INFO] [stdout] test chip8::tests::test_chip8_execute_skip_if_not_pressed ... ok
[INFO] [stdout] test chip8::tests::test_chip8_execute_skip_if_pressed ... ok
[INFO] [stdout] test chip8::tests::test_chip8_execute_skip_if_reg_not_equal_skips ... ok
[INFO] [stdout] test chip8::tests::test_chip8_execute_sub ... ok
[INFO] [stdout] test chip8::tests::test_chip8_execute_store_bcd ... ok
[INFO] [stdout] test chip8::tests::test_chip8_execute_sub_borrow ... ok
[INFO] [stdout] test chip8::tests::test_chip8_execute_sub_no_borrow ... ok
[INFO] [stdout] test chip8::tests::test_chip8_execute_subn_borrow ... ok
[INFO] [stdout] test chip8::tests::test_chip8_execute_skip_if_reg_equal_skips ... ok
[INFO] [stdout] test chip8::tests::test_chip8_execute_skip_if_reg_equal_not_skips ... ok
[INFO] [stdout] test chip8::tests::test_chip8_execute_skip_if_reg_not_equal_not_skips ... ok
[INFO] [stdout] test chip8::tests::test_chip8_execute_subn_no_borrow ... ok
[INFO] [stdout] test chip8::tests::test_chip8_load_rom ... ok
[INFO] [stdout] test chip8::tests::test_chip8_execute_xor ... ok
[INFO] [stdout] test chip8::tests::test_chip8_execute_skip_if_pressed_does_not_skip_on_wrong_key_press ... ok
[INFO] [stdout] test chip8::tests::test_chip8_wait_for_key_no_key_pressed ... ok
[INFO] [stdout] test chip8::tests::test_chip8_load_rom_from_non_existing_file ... ok
[INFO] [stdout] test chip8::tests::test_chip8_execute_subn ... ok
[INFO] [stdout] test chip8::tests::test_chip8_execute_skip_does_not_skip_when_key_not_pressed ... ok
[INFO] [stdout] test chip8::timers::tests::test_decrement_timers ... ok
[INFO] [stdout] test chip8::timers::tests::test_set_sound_timer ... ok
[INFO] [stdout] test chip8::timers::tests::test_new_timers ... ok
[INFO] [stdout] test chip8::timers::tests::test_set_delay_timer ... ok
[INFO] [stdout] test chip8::tests::test_chip8_load_sprite_address_invalid_sprite ... ok
[INFO] [stdout] test chip8::tests::test_chip8_load_sprites ... ok
[INFO] [stdout] test chip8::tests::test_chip8_new ... ok
[INFO] [stdout] test chip8::display::tests::test_bit_erased_no_erased_bits ... ok
[INFO] [stdout] test chip8::tests::test_chip8_load_rom_from_file ... FAILED
[INFO] [stdout] test chip8::memory::tests::test_write_byte_out_of_bounds ... ok
[INFO] [stdout] test chip8::opcodes::tests::test_opcode_from_bytes_add_i ... ok
[INFO] [stdout] test chip8::opcodes::tests::test_opcode_from_bytes_subn ... ok
[INFO] [stdout] test chip8::tests::test_chip8_wait_for_key ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- chip8::tests::test_chip8_load_rom_from_file stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'chip8::tests::test_chip8_load_rom_from_file' (148) panicked at src/chip8.rs:447:61:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x62cb715bf0f2 - std::backtrace_rs::backtrace::libunwind::trace::ha50a1f28c7a10cf8
[INFO] [stdout]                                at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x62cb715bf0f2 - std::backtrace_rs::backtrace::trace_unsynchronized::h34f8c4ec82a320bc
[INFO] [stdout]                                at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x62cb715bf0f2 - std::sys::backtrace::_print_fmt::h2d23e84e13d343bc
[INFO] [stdout]                                at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x62cb715bf0f2 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::hde21067283f7e82e
[INFO] [stdout]                                at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x62cb715cf8cf - core::fmt::rt::Argument::fmt::he65307037dca33c6
[INFO] [stdout]                                at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/core/src/fmt/rt.rs:173:76
[INFO] [stdout]    5:     0x62cb715cf8cf - core::fmt::write::h24186904251c31cb
[INFO] [stdout]                                at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/core/src/fmt/mod.rs:1469:25
[INFO] [stdout]    6:     0x62cb7158cb63 - std::io::default_write_fmt::h4e8d11c5c4b9cafe
[INFO] [stdout]                                at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x62cb7158cb63 - std::io::Write::write_fmt::ha849be0824d095ef
[INFO] [stdout]                                at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/std/src/io/mod.rs:1954:13
[INFO] [stdout]    8:     0x62cb71598932 - std::sys::backtrace::BacktraceLock::print::he038489aba5894a6
[INFO] [stdout]                                at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    9:     0x62cb7159d40f - std::panicking::default_hook::{{closure}}::h80a26d916c49679b
[INFO] [stdout]                                at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/std/src/panicking.rs:301:27
[INFO] [stdout]   10:     0x62cb7159d2a1 - std::panicking::default_hook::he2e9efee79b3dce9
[INFO] [stdout]                                at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/std/src/panicking.rs:325:9
[INFO] [stdout]   11:     0x62cb7152282e - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h202f496763929329
[INFO] [stdout]                                at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/alloc/src/boxed.rs:2099:9
[INFO] [stdout]   12:     0x62cb7152282e - test::test_main_with_exit_callback::{{closure}}::h805a6913adddaea3
[INFO] [stdout]                                at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x62cb7159da1f - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h2883c9d2dbd4e81c
[INFO] [stdout]                                at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/alloc/src/boxed.rs:2099:9
[INFO] [stdout]   14:     0x62cb7159da1f - std::panicking::panic_with_hook::hf5648b7cec6bc73e
[INFO] [stdout]                                at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/std/src/panicking.rs:842:13
[INFO] [stdout]   15:     0x62cb7159d87a - std::panicking::panic_handler::{{closure}}::h1b2ed3864ba94359
[INFO] [stdout]                                at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/std/src/panicking.rs:707:13
[INFO] [stdout]   16:     0x62cb71598a69 - std::sys::backtrace::__rust_end_short_backtrace::hd0186b2b27f5aaa7
[INFO] [stdout]                                at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/std/src/sys/backtrace.rs:174:18
[INFO] [stdout]   17:     0x62cb7158094d - __rustc[f7dae8b92efe1d7a]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/std/src/panicking.rs:698:5
[INFO] [stdout]   18:     0x62cb715d7560 - core::panicking::panic_fmt::hb5d6b83773432920
[INFO] [stdout]                                at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/core/src/panicking.rs:80:14
[INFO] [stdout]   19:     0x62cb715d6b96 - core::result::unwrap_failed::h427ee4a8bb06d8af
[INFO] [stdout]                                at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/core/src/result.rs:1862:5
[INFO] [stdout]   20:     0x62cb714f4547 - core::result::Result<T,E>::unwrap::h6b722f1f8fec2f15
[INFO] [stdout]                                at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/core/src/result.rs:1233:23
[INFO] [stdout]   21:     0x62cb714f4547 - ch8emu::chip8::tests::test_chip8_load_rom_from_file::h47b553e9cf76871d
[INFO] [stdout]                                at /opt/rustwide/workdir/src/chip8.rs:447:61
[INFO] [stdout]   22:     0x62cb714f4977 - ch8emu::chip8::tests::test_chip8_load_rom_from_file::{{closure}}::h6c2e1e72bcdc744f
[INFO] [stdout]                                at /opt/rustwide/workdir/src/chip8.rs:442:39
[INFO] [stdout]   23:     0x62cb714e3e16 - core::ops::function::FnOnce::call_once::h750ae5446b0e532a
[INFO] [stdout]                                at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x62cb7152269b - core::ops::function::FnOnce::call_once::h3a2d82edd1a9b770
[INFO] [stdout]                                at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   25:     0x62cb7152269b - test::__rust_begin_short_backtrace::h85d4fe5033219107
[INFO] [stdout]                                at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/test/src/lib.rs:663:18
[INFO] [stdout]   26:     0x62cb7153668d - test::run_test_in_process::{{closure}}::h67b48a81b9c9d7b6
[INFO] [stdout]                                at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/test/src/lib.rs:686:74
[INFO] [stdout]   27:     0x62cb7153668d - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h7680585480377cb5
[INFO] [stdout]                                at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   28:     0x62cb7153668d - std::panicking::catch_unwind::do_call::hf71351b2657d4002
[INFO] [stdout]                                at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/std/src/panicking.rs:590:40
[INFO] [stdout]   29:     0x62cb7153668d - std::panicking::catch_unwind::h7fcb5c0312d9e172
[INFO] [stdout]                                at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/std/src/panicking.rs:553:19
[INFO] [stdout]   30:     0x62cb7153668d - std::panic::catch_unwind::h5cf3c9bdee894ebe
[INFO] [stdout]                                at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/std/src/panic.rs:359:14
[INFO] [stdout]   31:     0x62cb7153668d - test::run_test_in_process::h1469cb85193a3a25
[INFO] [stdout]                                at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/test/src/lib.rs:686:27
[INFO] [stdout]   32:     0x62cb7153668d - test::run_test::{{closure}}::h59d45b3cd6453d69
[INFO] [stdout]                                at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/test/src/lib.rs:607:43
[INFO] [stdout]   33:     0x62cb7150fbd4 - test::run_test::{{closure}}::h9baa0c3d443f28c9
[INFO] [stdout]                                at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/test/src/lib.rs:637:41
[INFO] [stdout]   34:     0x62cb7150fbd4 - std::sys::backtrace::__rust_begin_short_backtrace::h97ea8cee4828663e
[INFO] [stdout]                                at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/std/src/sys/backtrace.rs:158:18
[INFO] [stdout]   35:     0x62cb7151342a - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h5d7539d5f78cee61
[INFO] [stdout]                                at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/std/src/thread/mod.rs:562:17
[INFO] [stdout]   36:     0x62cb7151342a - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::he4c551e23c5e9b22
[INFO] [stdout]                                at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   37:     0x62cb7151342a - std::panicking::catch_unwind::do_call::h522b41a6c157aaba
[INFO] [stdout]                                at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/std/src/panicking.rs:590:40
[INFO] [stdout]   38:     0x62cb7151342a - std::panicking::catch_unwind::h0efbf72006b8e365
[INFO] [stdout]                                at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/std/src/panicking.rs:553:19
[INFO] [stdout]   39:     0x62cb7151342a - std::panic::catch_unwind::h3b081041e6c97066
[INFO] [stdout]                                at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/std/src/panic.rs:359:14
[INFO] [stdout]   40:     0x62cb7151342a - std::thread::Builder::spawn_unchecked_::{{closure}}::ha751309815d5d8cf
[INFO] [stdout]                                at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/std/src/thread/mod.rs:560:30
[INFO] [stdout]   41:     0x62cb7151342a - core::ops::function::FnOnce::call_once{{vtable.shim}}::h2084b887a5fe25a7
[INFO] [stdout]                                at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   42:     0x62cb71593e6f - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h3adbd6ccf5f737af
[INFO] [stdout]                                at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/alloc/src/boxed.rs:2085:9
[INFO] [stdout]   43:     0x62cb71593e6f - std::sys::thread::unix::Thread::new::thread_start::hb3dc6483caa1b987
[INFO] [stdout]                                at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/std/src/sys/thread/unix.rs:124:17
[INFO] [stdout]   44:     0x76098f985aa4 - <unknown>
[INFO] [stdout]   45:     0x76098fa12a64 - clone
[INFO] [stdout]   46:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     chip8::tests::test_chip8_load_rom_from_file
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 133 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.16s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--bin ch8emu`
[INFO] running `Command { std: "docker" "inspect" "964894c5a052eaf43e494c3e74b3f257340c7dbcd820e5a9e40df3bc1c738c82", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "964894c5a052eaf43e494c3e74b3f257340c7dbcd820e5a9e40df3bc1c738c82", kill_on_drop: false }`
[INFO] [stdout] 964894c5a052eaf43e494c3e74b3f257340c7dbcd820e5a9e40df3bc1c738c82
