[INFO] cloning repository https://github.com/jmg-duarte/c8
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jmg-duarte/c8" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjmg-duarte%2Fc8", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjmg-duarte%2Fc8'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 75c183636d291a3fbd35924ac516618883dba5f5
[INFO] testing jmg-duarte/c8 against beta-2025-09-21 for beta-1.91-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjmg-duarte%2Fc8" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/jmg-duarte/c8
[INFO] finished tweaking git repo https://github.com/jmg-duarte/c8
[INFO] tweaked toml for git repo https://github.com/jmg-duarte/c8 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/jmg-duarte/c8 on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/jmg-duarte/c8 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" "+beta-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bea9ca1c6d6dc336dbae06137d069f0a01e1edb8968658961bd50d02ff8bee4c
[INFO] running `Command { std: "docker" "start" "-a" "bea9ca1c6d6dc336dbae06137d069f0a01e1edb8968658961bd50d02ff8bee4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bea9ca1c6d6dc336dbae06137d069f0a01e1edb8968658961bd50d02ff8bee4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bea9ca1c6d6dc336dbae06137d069f0a01e1edb8968658961bd50d02ff8bee4c", kill_on_drop: false }`
[INFO] [stdout] bea9ca1c6d6dc336dbae06137d069f0a01e1edb8968658961bd50d02ff8bee4c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 372e6b9750eb1a80dd1507dcf1be4476a44cd745a3f8297523229c36e78cfce9
[INFO] running `Command { std: "docker" "start" "-a" "372e6b9750eb1a80dd1507dcf1be4476a44cd745a3f8297523229c36e78cfce9", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.73
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling chip-8 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `addr`
[INFO] [stdout]    --> src/chip8/cpu.rs:217:13
[INFO] [stdout]     |
[INFO] [stdout] 217 |         for addr in start..end {
[INFO] [stdout]     |             ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: if this is intentional, prefix it with an underscore
[INFO] [stdout]     |
[INFO] [stdout] 217 |         for _addr in start..end {
[INFO] [stdout]     |             +
[INFO] [stdout] help: you might have meant to pattern match on the similarly named constant `V0`
[INFO] [stdout]     |
[INFO] [stdout] 217 -         for addr in start..end {
[INFO] [stdout] 217 +         for chip8::cpu::V0 in start..end {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x_idx`
[INFO] [stdout]    --> src/chip8/cpu.rs:214:24
[INFO] [stdout]     |
[INFO] [stdout] 214 |     fn draw(&mut self, x_idx: u8, y_idx: u8, n: u8) {
[INFO] [stdout]     |                        ^^^^^ help: if this is intentional, prefix it with an underscore: `_x_idx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y_idx`
[INFO] [stdout]    --> src/chip8/cpu.rs:214:35
[INFO] [stdout]     |
[INFO] [stdout] 214 |     fn draw(&mut self, x_idx: u8, y_idx: u8, n: u8) {
[INFO] [stdout]     |                                   ^^^^^ help: if this is intentional, prefix it with an underscore: `_y_idx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x_idx`
[INFO] [stdout]    --> src/chip8/cpu.rs:223:36
[INFO] [stdout]     |
[INFO] [stdout] 223 |     fn skip_key_pressed(&mut self, x_idx: u8) {
[INFO] [stdout]     |                                    ^^^^^ help: if this is intentional, prefix it with an underscore: `_x_idx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x_idx`
[INFO] [stdout]    --> src/chip8/cpu.rs:228:40
[INFO] [stdout]     |
[INFO] [stdout] 228 |     fn skip_key_not_pressed(&mut self, x_idx: u8) {
[INFO] [stdout]     |                                        ^^^^^ help: if this is intentional, prefix it with an underscore: `_x_idx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x_idx`
[INFO] [stdout]    --> src/chip8/cpu.rs:238:33
[INFO] [stdout]     |
[INFO] [stdout] 238 |     fn wait_keypress(&mut self, x_idx: u8) {
[INFO] [stdout]     |                                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_x_idx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x_idx`
[INFO] [stdout]    --> src/chip8/cpu.rs:258:31
[INFO] [stdout]     |
[INFO] [stdout] 258 |     fn set_i_digit(&mut self, x_idx: u8) {
[INFO] [stdout]     |                               ^^^^^ help: if this is intentional, prefix it with an underscore: `_x_idx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x_idx`
[INFO] [stdout]    --> src/chip8/cpu.rs:263:29
[INFO] [stdout]     |
[INFO] [stdout] 263 |     fn store_bcd(&mut self, x_idx: u8) {
[INFO] [stdout]     |                             ^^^^^ help: if this is intentional, prefix it with an underscore: `_x_idx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `N_VREGISTERS` is never used
[INFO] [stdout]  --> src/chip8/cpu.rs:4:7
[INFO] [stdout]   |
[INFO] [stdout] 4 | const N_VREGISTERS: usize = 16;
[INFO] [stdout]   |       ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `STACK_SIZE` is never used
[INFO] [stdout]  --> src/chip8/cpu.rs:5:7
[INFO] [stdout]   |
[INFO] [stdout] 5 | const STACK_SIZE: usize = 16;
[INFO] [stdout]   |       ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `VF` is never used
[INFO] [stdout]  --> src/chip8/cpu.rs:6:7
[INFO] [stdout]   |
[INFO] [stdout] 6 | const VF: usize = 0xF;
[INFO] [stdout]   |       ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `V0` is never used
[INFO] [stdout]  --> src/chip8/cpu.rs:7:7
[INFO] [stdout]   |
[INFO] [stdout] 7 | const V0: usize = 0x0;
[INFO] [stdout]   |       ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `CPU` is never constructed
[INFO] [stdout]  --> src/chip8/cpu.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct CPU {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> src/chip8/cpu.rs:24:12
[INFO] [stdout]     |
[INFO] [stdout]  21 | impl CPU {
[INFO] [stdout]     | -------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout]  24 |     pub fn new() -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout]  42 |     fn ret_subroutine(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  50 |     fn jmp_addr(&mut self, addr: u16) {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  59 |     fn call_subroutine(&mut self, addr: u16) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  68 |     fn skip_eq_value(&mut self, x_idx: u8, value: u8) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  77 |     fn skip_neq_value(&mut self, x_idx: u8, value: u8) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  86 |     fn skip_eq_xy(&mut self, x_idx: u8, y_idx: u8) {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  93 |     fn set_x_value(&mut self, x_idx: u8, value: u8) {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  98 |     fn add_x_value(&mut self, x_idx: u8, value: u8) {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 103 |     fn store_xy(&mut self, x_idx: u8, y_idx: u8) {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 109 |     fn or_xy(&mut self, x_idx: u8, y_idx: u8) {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 115 |     fn and_xy(&mut self, x_idx: u8, y_idx: u8) {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 121 |     fn xor_xy(&mut self, x_idx: u8, y_idx: u8) {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 130 |     fn add_xy(&mut self, x_idx: u8, y_idx: u8) {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 144 |     fn sub_xy(&mut self, x_idx: u8, y_idx: u8) {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 157 |     fn shr_x(&mut self, x_idx: u8) {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 166 |     fn subn_xy(&mut self, x_idx: u8, y_idx: u8) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 179 |     fn shl_x(&mut self, x_idx: u8) {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 187 |     fn skip_neq_xy(&mut self, x_idx: u8, y_idx: u8) {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 194 |     fn set_i(&mut self, addr: u16) {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 201 |     fn jmp_addr_offset(&mut self, addr: u16) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 208 |     fn rnd_and(&mut self, x_idx: u8, value: u8) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 214 |     fn draw(&mut self, x_idx: u8, y_idx: u8, n: u8) {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 223 |     fn skip_key_pressed(&mut self, x_idx: u8) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 228 |     fn skip_key_not_pressed(&mut self, x_idx: u8) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 233 |     fn read_delay_timer(&mut self, x_idx: u8) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 238 |     fn wait_keypress(&mut self, x_idx: u8) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 243 |     fn set_delay_timer(&mut self, x_idx: u8) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 248 |     fn set_sound_timer(&mut self, x_idx: u8) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 253 |     fn add_i(&mut self, x_idx: u8) {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 258 |     fn set_i_digit(&mut self, x_idx: u8) {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 263 |     fn store_bcd(&mut self, x_idx: u8) {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 270 |     fn store_registers(&mut self, x_idx: u8) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 279 |     fn read_registers(&mut self, x_idx: u8) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 285 |     fn cycle(&mut self, opcode: u16) {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `RAM` is never constructed
[INFO] [stdout]  --> src/chip8/ram.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct RAM {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `read`, and `write` are never used
[INFO] [stdout]   --> src/chip8/ram.rs:7:12
[INFO] [stdout]    |
[INFO] [stdout]  5 | impl RAM {
[INFO] [stdout]    | -------- associated items in this implementation
[INFO] [stdout]  6 |     /// Create a new RAM instance.
[INFO] [stdout]  7 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 12 |     pub fn read(&self, addr: usize) -> u8 {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 18 |     pub fn write(&mut self, addr: usize, value: u8) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.96s
[INFO] running `Command { std: "docker" "inspect" "372e6b9750eb1a80dd1507dcf1be4476a44cd745a3f8297523229c36e78cfce9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "372e6b9750eb1a80dd1507dcf1be4476a44cd745a3f8297523229c36e78cfce9", kill_on_drop: false }`
[INFO] [stdout] 372e6b9750eb1a80dd1507dcf1be4476a44cd745a3f8297523229c36e78cfce9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6a819cc26457d3794a11ae90c1a9f118a10c55d39089f38b316817864d03e432
[INFO] running `Command { std: "docker" "start" "-a" "6a819cc26457d3794a11ae90c1a9f118a10c55d39089f38b316817864d03e432", kill_on_drop: false }`
[INFO] [stderr]    Compiling chip-8 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `addr`
[INFO] [stdout]    --> src/chip8/cpu.rs:217:13
[INFO] [stdout]     |
[INFO] [stdout] 217 |         for addr in start..end {
[INFO] [stdout]     |             ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: if this is intentional, prefix it with an underscore
[INFO] [stdout]     |
[INFO] [stdout] 217 |         for _addr in start..end {
[INFO] [stdout]     |             +
[INFO] [stdout] help: you might have meant to pattern match on the similarly named constant `V0`
[INFO] [stdout]     |
[INFO] [stdout] 217 -         for addr in start..end {
[INFO] [stdout] 217 +         for chip8::cpu::V0 in start..end {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x_idx`
[INFO] [stdout]    --> src/chip8/cpu.rs:214:24
[INFO] [stdout]     |
[INFO] [stdout] 214 |     fn draw(&mut self, x_idx: u8, y_idx: u8, n: u8) {
[INFO] [stdout]     |                        ^^^^^ help: if this is intentional, prefix it with an underscore: `_x_idx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y_idx`
[INFO] [stdout]    --> src/chip8/cpu.rs:214:35
[INFO] [stdout]     |
[INFO] [stdout] 214 |     fn draw(&mut self, x_idx: u8, y_idx: u8, n: u8) {
[INFO] [stdout]     |                                   ^^^^^ help: if this is intentional, prefix it with an underscore: `_y_idx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x_idx`
[INFO] [stdout]    --> src/chip8/cpu.rs:223:36
[INFO] [stdout]     |
[INFO] [stdout] 223 |     fn skip_key_pressed(&mut self, x_idx: u8) {
[INFO] [stdout]     |                                    ^^^^^ help: if this is intentional, prefix it with an underscore: `_x_idx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x_idx`
[INFO] [stdout]    --> src/chip8/cpu.rs:228:40
[INFO] [stdout]     |
[INFO] [stdout] 228 |     fn skip_key_not_pressed(&mut self, x_idx: u8) {
[INFO] [stdout]     |                                        ^^^^^ help: if this is intentional, prefix it with an underscore: `_x_idx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x_idx`
[INFO] [stdout]    --> src/chip8/cpu.rs:238:33
[INFO] [stdout]     |
[INFO] [stdout] 238 |     fn wait_keypress(&mut self, x_idx: u8) {
[INFO] [stdout]     |                                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_x_idx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x_idx`
[INFO] [stdout]    --> src/chip8/cpu.rs:258:31
[INFO] [stdout]     |
[INFO] [stdout] 258 |     fn set_i_digit(&mut self, x_idx: u8) {
[INFO] [stdout]     |                               ^^^^^ help: if this is intentional, prefix it with an underscore: `_x_idx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x_idx`
[INFO] [stdout]    --> src/chip8/cpu.rs:263:29
[INFO] [stdout]     |
[INFO] [stdout] 263 |     fn store_bcd(&mut self, x_idx: u8) {
[INFO] [stdout]     |                             ^^^^^ help: if this is intentional, prefix it with an underscore: `_x_idx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `V0` is never used
[INFO] [stdout]  --> src/chip8/cpu.rs:7:7
[INFO] [stdout]   |
[INFO] [stdout] 7 | const V0: usize = 0x0;
[INFO] [stdout]   |       ^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `i_reg`, `delay_timer`, `sound_timer`, `rng`, and `ram` are never read
[INFO] [stdout]   --> src/chip8/cpu.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout]  9 | pub struct CPU {
[INFO] [stdout]    |            --- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 12 |     i_reg: u16,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 13 |     delay_timer: u8,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 14 |     sound_timer: u8,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 17 |     rng: ThreadRng,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 18 |     ram: ram::RAM,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple methods are never used
[INFO] [stdout]    --> src/chip8/cpu.rs:144:8
[INFO] [stdout]     |
[INFO] [stdout]  21 | impl CPU {
[INFO] [stdout]     | -------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 144 |     fn sub_xy(&mut self, x_idx: u8, y_idx: u8) {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 157 |     fn shr_x(&mut self, x_idx: u8) {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 166 |     fn subn_xy(&mut self, x_idx: u8, y_idx: u8) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 179 |     fn shl_x(&mut self, x_idx: u8) {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 194 |     fn set_i(&mut self, addr: u16) {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 201 |     fn jmp_addr_offset(&mut self, addr: u16) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 208 |     fn rnd_and(&mut self, x_idx: u8, value: u8) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 214 |     fn draw(&mut self, x_idx: u8, y_idx: u8, n: u8) {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 223 |     fn skip_key_pressed(&mut self, x_idx: u8) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 228 |     fn skip_key_not_pressed(&mut self, x_idx: u8) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 233 |     fn read_delay_timer(&mut self, x_idx: u8) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 238 |     fn wait_keypress(&mut self, x_idx: u8) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 243 |     fn set_delay_timer(&mut self, x_idx: u8) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 248 |     fn set_sound_timer(&mut self, x_idx: u8) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 253 |     fn add_i(&mut self, x_idx: u8) {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 258 |     fn set_i_digit(&mut self, x_idx: u8) {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 263 |     fn store_bcd(&mut self, x_idx: u8) {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 270 |     fn store_registers(&mut self, x_idx: u8) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 279 |     fn read_registers(&mut self, x_idx: u8) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 285 |     fn cycle(&mut self, opcode: u16) {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `memory` is never read
[INFO] [stdout]  --> src/chip8/ram.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct RAM {
[INFO] [stdout]   |            --- field in this struct
[INFO] [stdout] 2 |     memory: [u8; 4096],
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `read` and `write` are never used
[INFO] [stdout]   --> src/chip8/ram.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout]  5 | impl RAM {
[INFO] [stdout]    | -------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 12 |     pub fn read(&self, addr: usize) -> u8 {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 18 |     pub fn write(&mut self, addr: usize, value: u8) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.70s
[INFO] running `Command { std: "docker" "inspect" "6a819cc26457d3794a11ae90c1a9f118a10c55d39089f38b316817864d03e432", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a819cc26457d3794a11ae90c1a9f118a10c55d39089f38b316817864d03e432", kill_on_drop: false }`
[INFO] [stdout] 6a819cc26457d3794a11ae90c1a9f118a10c55d39089f38b316817864d03e432
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5ea15a42138128996e906d7e2e2a2c06c8e93359544a37e1ede99fd55b717c35
[INFO] running `Command { std: "docker" "start" "-a" "5ea15a42138128996e906d7e2e2a2c06c8e93359544a37e1ede99fd55b717c35", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `addr`
[INFO] [stderr]    --> src/chip8/cpu.rs:217:13
[INFO] [stderr]     |
[INFO] [stderr] 217 |         for addr in start..end {
[INFO] [stderr]     |             ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: if this is intentional, prefix it with an underscore
[INFO] [stderr]     |
[INFO] [stderr] 217 |         for _addr in start..end {
[INFO] [stderr]     |             +
[INFO] [stderr] help: you might have meant to pattern match on the similarly named constant `V0`
[INFO] [stderr]     |
[INFO] [stderr] 217 -         for addr in start..end {
[INFO] [stderr] 217 +         for chip8::cpu::V0 in start..end {
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x_idx`
[INFO] [stderr]    --> src/chip8/cpu.rs:214:24
[INFO] [stderr]     |
[INFO] [stderr] 214 |     fn draw(&mut self, x_idx: u8, y_idx: u8, n: u8) {
[INFO] [stderr]     |                        ^^^^^ help: if this is intentional, prefix it with an underscore: `_x_idx`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `y_idx`
[INFO] [stderr]    --> src/chip8/cpu.rs:214:35
[INFO] [stderr]     |
[INFO] [stderr] 214 |     fn draw(&mut self, x_idx: u8, y_idx: u8, n: u8) {
[INFO] [stderr]     |                                   ^^^^^ help: if this is intentional, prefix it with an underscore: `_y_idx`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x_idx`
[INFO] [stderr]    --> src/chip8/cpu.rs:223:36
[INFO] [stderr]     |
[INFO] [stderr] 223 |     fn skip_key_pressed(&mut self, x_idx: u8) {
[INFO] [stderr]     |                                    ^^^^^ help: if this is intentional, prefix it with an underscore: `_x_idx`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x_idx`
[INFO] [stderr]    --> src/chip8/cpu.rs:228:40
[INFO] [stderr]     |
[INFO] [stderr] 228 |     fn skip_key_not_pressed(&mut self, x_idx: u8) {
[INFO] [stderr]     |                                        ^^^^^ help: if this is intentional, prefix it with an underscore: `_x_idx`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x_idx`
[INFO] [stderr]    --> src/chip8/cpu.rs:238:33
[INFO] [stderr]     |
[INFO] [stderr] 238 |     fn wait_keypress(&mut self, x_idx: u8) {
[INFO] [stderr]     |                                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_x_idx`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x_idx`
[INFO] [stderr]    --> src/chip8/cpu.rs:258:31
[INFO] [stderr]     |
[INFO] [stderr] 258 |     fn set_i_digit(&mut self, x_idx: u8) {
[INFO] [stderr]     |                               ^^^^^ help: if this is intentional, prefix it with an underscore: `_x_idx`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x_idx`
[INFO] [stderr]    --> src/chip8/cpu.rs:263:29
[INFO] [stderr]     |
[INFO] [stderr] 263 |     fn store_bcd(&mut self, x_idx: u8) {
[INFO] [stderr]     |                             ^^^^^ help: if this is intentional, prefix it with an underscore: `_x_idx`
[INFO] [stderr] 
[INFO] [stderr] warning: constant `V0` is never used
[INFO] [stderr]  --> src/chip8/cpu.rs:7:7
[INFO] [stderr]   |
[INFO] [stderr] 7 | const V0: usize = 0x0;
[INFO] [stderr]   |       ^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: fields `i_reg`, `delay_timer`, `sound_timer`, `rng`, and `ram` are never read
[INFO] [stderr]   --> src/chip8/cpu.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr]  9 | pub struct CPU {
[INFO] [stderr]    |            --- fields in this struct
[INFO] [stderr] ...
[INFO] [stderr] 12 |     i_reg: u16,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 13 |     delay_timer: u8,
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr] 14 |     sound_timer: u8,
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 17 |     rng: ThreadRng,
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 18 |     ram: ram::RAM,
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: multiple methods are never used
[INFO] [stderr]    --> src/chip8/cpu.rs:144:8
[INFO] [stderr]     |
[INFO] [stderr]  21 | impl CPU {
[INFO] [stderr]     | -------- methods in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 144 |     fn sub_xy(&mut self, x_idx: u8, y_idx: u8) {
[INFO] [stderr]     |        ^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 157 |     fn shr_x(&mut self, x_idx: u8) {
[INFO] [stderr]     |        ^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 166 |     fn subn_xy(&mut self, x_idx: u8, y_idx: u8) {
[INFO] [stderr]     |        ^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 179 |     fn shl_x(&mut self, x_idx: u8) {
[INFO] [stderr]     |        ^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 194 |     fn set_i(&mut self, addr: u16) {
[INFO] [stderr]     |        ^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 201 |     fn jmp_addr_offset(&mut self, addr: u16) {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 208 |     fn rnd_and(&mut self, x_idx: u8, value: u8) {
[INFO] [stderr]     |        ^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 214 |     fn draw(&mut self, x_idx: u8, y_idx: u8, n: u8) {
[INFO] [stderr]     |        ^^^^
[INFO] [stderr] ...
[INFO] [stderr] 223 |     fn skip_key_pressed(&mut self, x_idx: u8) {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 228 |     fn skip_key_not_pressed(&mut self, x_idx: u8) {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 233 |     fn read_delay_timer(&mut self, x_idx: u8) {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 238 |     fn wait_keypress(&mut self, x_idx: u8) {
[INFO] [stderr]     |        ^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 243 |     fn set_delay_timer(&mut self, x_idx: u8) {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 248 |     fn set_sound_timer(&mut self, x_idx: u8) {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 253 |     fn add_i(&mut self, x_idx: u8) {
[INFO] [stderr]     |        ^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 258 |     fn set_i_digit(&mut self, x_idx: u8) {
[INFO] [stderr]     |        ^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 263 |     fn store_bcd(&mut self, x_idx: u8) {
[INFO] [stderr]     |        ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 270 |     fn store_registers(&mut self, x_idx: u8) {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 279 |     fn read_registers(&mut self, x_idx: u8) {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 285 |     fn cycle(&mut self, opcode: u16) {
[INFO] [stderr]     |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field `memory` is never read
[INFO] [stderr]  --> src/chip8/ram.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub struct RAM {
[INFO] [stderr]   |            --- field in this struct
[INFO] [stderr] 2 |     memory: [u8; 4096],
[INFO] [stderr]   |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: methods `read` and `write` are never used
[INFO] [stderr]   --> src/chip8/ram.rs:12:12
[INFO] [stderr]    |
[INFO] [stderr]  5 | impl RAM {
[INFO] [stderr]    | -------- methods in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 12 |     pub fn read(&self, addr: usize) -> u8 {
[INFO] [stderr]    |            ^^^^
[INFO] [stderr] ...
[INFO] [stderr] 18 |     pub fn write(&mut self, addr: usize, value: u8) {
[INFO] [stderr]    |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `chip-8` (bin "chip-8" test) generated 13 warnings (run `cargo fix --bin "chip-8" --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/chip_8-ab3f1348f26407b5)
[INFO] [stdout] 
[INFO] [stdout] running 13 tests
[INFO] [stdout] test chip8::cpu::cpu_tests::add_registers ... ok
[INFO] [stdout] test chip8::cpu::cpu_tests::add_value_to_register ... ok
[INFO] [stdout] test chip8::cpu::cpu_tests::jump_to_address ... ok
[INFO] [stdout] test chip8::cpu::cpu_tests::return_subroutine ... ok
[INFO] [stdout] test chip8::cpu::cpu_tests::set_store_register ... ok
[INFO] [stdout] test chip8::cpu::cpu_tests::skip_if_register_eq_xy ... ok
[INFO] [stdout] test chip8::cpu::cpu_tests::skip_if_register_eq_value ... ok
[INFO] [stdout] test chip8::cpu::cpu_tests::xor_registers ... ok
[INFO] [stdout] test chip8::cpu::cpu_tests::skip_if_register_neq_xy ... ok
[INFO] [stdout] test chip8::cpu::cpu_tests::skip_if_register_neq_value ... ok
[INFO] [stdout] test chip8::cpu::cpu_tests::or_registers ... ok
[INFO] [stdout] test chip8::cpu::cpu_tests::call_subroutine ... ok
[INFO] [stdout] test chip8::cpu::cpu_tests::and_registers ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 13 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "5ea15a42138128996e906d7e2e2a2c06c8e93359544a37e1ede99fd55b717c35", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5ea15a42138128996e906d7e2e2a2c06c8e93359544a37e1ede99fd55b717c35", kill_on_drop: false }`
[INFO] [stdout] 5ea15a42138128996e906d7e2e2a2c06c8e93359544a37e1ede99fd55b717c35
