[INFO] cloning repository https://github.com/SatelliteDish/chip8-emulator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/SatelliteDish/chip8-emulator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSatelliteDish%2Fchip8-emulator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSatelliteDish%2Fchip8-emulator'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1b5f5d0caa5e923213bc0e81a3593e3f8db9d00e
[INFO] checking SatelliteDish/chip8-emulator against 895980e0290783bb09b1ccf1b11f14eb09b10430 for pr-160186
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSatelliteDish%2Fchip8-emulator" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/SatelliteDish/chip8-emulator
[INFO] finished tweaking git repo https://github.com/SatelliteDish/chip8-emulator
[INFO] tweaked toml for git repo https://github.com/SatelliteDish/chip8-emulator written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/SatelliteDish/chip8-emulator on toolchain 895980e0290783bb09b1ccf1b11f14eb09b10430
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+895980e0290783bb09b1ccf1b11f14eb09b10430" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/SatelliteDish/chip8-emulator 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" "+895980e0290783bb09b1ccf1b11f14eb09b10430" "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-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 4f72c0d1a1343af532263854b315e1df2f768c46153bc6cf13a78c886a4f1ba5
[INFO] running `Command { std: "docker" "start" "4f72c0d1a1343af532263854b315e1df2f768c46153bc6cf13a78c886a4f1ba5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4f72c0d1a1343af532263854b315e1df2f768c46153bc6cf13a78c886a4f1ba5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "4f72c0d1a1343af532263854b315e1df2f768c46153bc6cf13a78c886a4f1ba5" "/opt/rustwide/cargo-home/bin/cargo" "+895980e0290783bb09b1ccf1b11f14eb09b10430" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4f72c0d1a1343af532263854b315e1df2f768c46153bc6cf13a78c886a4f1ba5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "4f72c0d1a1343af532263854b315e1df2f768c46153bc6cf13a78c886a4f1ba5" "/opt/rustwide/cargo-home/bin/cargo" "+895980e0290783bb09b1ccf1b11f14eb09b10430" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling version-compare v0.1.1
[INFO] [stderr]    Compiling libc v0.2.157
[INFO] [stderr]    Compiling sdl2 v0.37.0
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking lazy_static v1.5.0
[INFO] [stderr]    Compiling sdl2-sys v0.37.0
[INFO] [stderr]     Checking chip8-emu v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `Chip8Error` is never constructed
[INFO] [stdout]   --> src/chip8/mod.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct Chip8Error {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/chip8/mod.rs:29:12
[INFO] [stdout]    |
[INFO] [stdout] 28 | impl Chip8Error {
[INFO] [stdout]    | --------------- associated function in this implementation
[INFO] [stdout] 29 |     pub fn new(message: String) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `cpu`, `pointer`, and `heap` are never read
[INFO] [stdout]   --> src/chip8/mod.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub struct Chip8 {
[INFO] [stdout]    |            ----- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 41 |     cpu: Cpu,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 42 |     pointer: usize,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 43 |     heap: Vec<u8>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `fetch`, `decode`, and `execute` are never used
[INFO] [stdout]   --> src/chip8/mod.rs:83:8
[INFO] [stdout]    |
[INFO] [stdout] 46 | impl Chip8 {
[INFO] [stdout]    | ---------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 83 |     fn fetch(&mut self) -> (u8, u8) {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 91 |     fn decode(&self) {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 95 |     fn execute(&self) {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `stack` is never read
[INFO] [stdout]  --> src/chip8/cpu.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Cpu {
[INFO] [stdout]   |            --- field in this struct
[INFO] [stdout] 5 |     stack: Stack
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `stack` is never read
[INFO] [stdout]   --> src/chip8/cpu.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | struct Stack {
[INFO] [stdout]    |        ----- field in this struct
[INFO] [stdout] 17 |     stack: Vec<u8>
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `push`, `pop`, and `peek` are never used
[INFO] [stdout]   --> src/chip8/cpu.rs:27:12
[INFO] [stdout]    |
[INFO] [stdout] 20 | impl Stack {
[INFO] [stdout]    | ---------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 27 |     pub fn push(&mut self, item: u8) -> Result <(), Box<dyn Error>> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 36 |     pub fn pop(&mut self) -> Option<u8> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 44 |     pub fn peek(&self) -> Option<&u8> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Chip8Error` is never constructed
[INFO] [stdout]   --> src/chip8/mod.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct Chip8Error {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/chip8/mod.rs:29:12
[INFO] [stdout]    |
[INFO] [stdout] 28 | impl Chip8Error {
[INFO] [stdout]    | --------------- associated function in this implementation
[INFO] [stdout] 29 |     pub fn new(message: String) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `cpu`, `pointer`, and `heap` are never read
[INFO] [stdout]   --> src/chip8/mod.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub struct Chip8 {
[INFO] [stdout]    |            ----- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 41 |     cpu: Cpu,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 42 |     pointer: usize,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 43 |     heap: Vec<u8>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `fetch`, `decode`, and `execute` are never used
[INFO] [stdout]   --> src/chip8/mod.rs:83:8
[INFO] [stdout]    |
[INFO] [stdout] 46 | impl Chip8 {
[INFO] [stdout]    | ---------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 83 |     fn fetch(&mut self) -> (u8, u8) {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 91 |     fn decode(&self) {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 95 |     fn execute(&self) {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `stack` is never read
[INFO] [stdout]  --> src/chip8/cpu.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Cpu {
[INFO] [stdout]   |            --- field in this struct
[INFO] [stdout] 5 |     stack: Stack
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `stack` is never read
[INFO] [stdout]   --> src/chip8/cpu.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | struct Stack {
[INFO] [stdout]    |        ----- field in this struct
[INFO] [stdout] 17 |     stack: Vec<u8>
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `push`, `pop`, and `peek` are never used
[INFO] [stdout]   --> src/chip8/cpu.rs:27:12
[INFO] [stdout]    |
[INFO] [stdout] 20 | impl Stack {
[INFO] [stdout]    | ---------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 27 |     pub fn push(&mut self, item: u8) -> Result <(), Box<dyn Error>> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 36 |     pub fn pop(&mut self) -> Option<u8> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 44 |     pub fn peek(&self) -> Option<&u8> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.54s
[INFO] running `Command { std: "docker" "inspect" "4f72c0d1a1343af532263854b315e1df2f768c46153bc6cf13a78c886a4f1ba5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f72c0d1a1343af532263854b315e1df2f768c46153bc6cf13a78c886a4f1ba5", kill_on_drop: false }`
[INFO] [stdout] 4f72c0d1a1343af532263854b315e1df2f768c46153bc6cf13a78c886a4f1ba5
