[INFO] updating cached repository https://github.com/MichaelGoodale/Rusted-Chip-8
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 584696b49a791cafeb11aa6c5de1c2ce36cd2671
[INFO] testing MichaelGoodale/Rusted-Chip-8 against master#8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e for pr-74409
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMichaelGoodale%2FRusted-Chip-8" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/MichaelGoodale/Rusted-Chip-8 on toolchain 8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/MichaelGoodale/Rusted-Chip-8
[INFO] finished tweaking git repo https://github.com/MichaelGoodale/Rusted-Chip-8
[INFO] tweaked toml for git repo https://github.com/MichaelGoodale/Rusted-Chip-8 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/MichaelGoodale/Rusted-Chip-8 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9ed330be172d0f8918f5c21a6e278cad772c0939ad8adc26371bd30208b1c8fb
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "9ed330be172d0f8918f5c21a6e278cad772c0939ad8adc26371bd30208b1c8fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9ed330be172d0f8918f5c21a6e278cad772c0939ad8adc26371bd30208b1c8fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ed330be172d0f8918f5c21a6e278cad772c0939ad8adc26371bd30208b1c8fb", kill_on_drop: false }`
[INFO] [stdout] 9ed330be172d0f8918f5c21a6e278cad772c0939ad8adc26371bd30208b1c8fb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ba67288f2bfdc5ea3f8b66687f431d55c071e0f7ee638c4448d78a35bf8eedd4
[INFO] running `Command { std: "docker" "start" "-a" "ba67288f2bfdc5ea3f8b66687f431d55c071e0f7ee638c4448d78a35bf8eedd4", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling sdl2-sys v0.27.2
[INFO] [stderr]    Compiling bitflags v0.7.0
[INFO] [stderr]    Compiling num-integer v0.1.33
[INFO] [stderr]    Compiling num-iter v0.1.33
[INFO] [stderr]    Compiling num v0.1.37
[INFO] [stderr]    Compiling sdl2 v0.29.0
[INFO] [stderr]    Compiling chip8_emu v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::env::current_dir`
[INFO] [stdout]  --> src/cpu.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::env::current_dir;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/main.rs:52:5
[INFO] [stdout]    |
[INFO] [stdout] 52 |         if(c.do_cycle()) {
[INFO] [stdout]    |           ^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stdout]   --> src/cpu.rs:56:16
[INFO] [stdout]    |
[INFO] [stdout] 56 |                                    why.description()),
[INFO] [stdout]    |                                        ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:117:6
[INFO] [stdout]     |
[INFO] [stdout] 117 |     let mut events = ctx.event_pump().unwrap();
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/cpu.rs:54:7
[INFO] [stdout]    |
[INFO] [stdout] 54 |         let mut file = match File::open(&path) {
[INFO] [stdout]    |             ----^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `do_opcode`
[INFO] [stdout]    --> src/cpu.rs:325:9
[INFO] [stdout]     |
[INFO] [stdout] 325 |     pub fn do_opcode(&mut self, opcode: u16) {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/main.rs:90:7
[INFO] [stdout]    |
[INFO] [stdout] 90 |                         r.draw_point(Point::new(i as i32, j as i32));
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/main.rs:113:2
[INFO] [stdout]     |
[INFO] [stdout] 113 |     renderer.set_scale(WINDOW_SCALE as f32, WINDOW_SCALE as f32);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `Vx` should have a snake case name
[INFO] [stdout]    --> src/cpu.rs:225:10
[INFO] [stdout]     |
[INFO] [stdout] 225 |                 let (Vx, Vy) = (self.v[x as usize] as usize, self.v[y as usize] as usize);
[INFO] [stdout]     |                      ^^ help: convert the identifier to snake case (notice the capitalization): `vx`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `Vy` should have a snake case name
[INFO] [stdout]    --> src/cpu.rs:225:14
[INFO] [stdout]     |
[INFO] [stdout] 225 |                 let (Vx, Vy) = (self.v[x as usize] as usize, self.v[y as usize] as usize);
[INFO] [stdout]     |                          ^^ help: convert the identifier to snake case (notice the capitalization): `vy`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.20s
[INFO] running `Command { std: "docker" "inspect" "ba67288f2bfdc5ea3f8b66687f431d55c071e0f7ee638c4448d78a35bf8eedd4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba67288f2bfdc5ea3f8b66687f431d55c071e0f7ee638c4448d78a35bf8eedd4", kill_on_drop: false }`
[INFO] [stdout] ba67288f2bfdc5ea3f8b66687f431d55c071e0f7ee638c4448d78a35bf8eedd4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 87d8ac2982fab99fe369470d6ae065dbbe52eda2a0d60a7a4c9e3a5898f4dfac
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "87d8ac2982fab99fe369470d6ae065dbbe52eda2a0d60a7a4c9e3a5898f4dfac", kill_on_drop: false }`
[INFO] [stderr]    Compiling chip8_emu v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::env::current_dir`
[INFO] [stdout]  --> src/cpu.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::env::current_dir;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/main.rs:52:5
[INFO] [stdout]    |
[INFO] [stdout] 52 |         if(c.do_cycle()) {
[INFO] [stdout]    |           ^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stdout]   --> src/cpu.rs:56:16
[INFO] [stdout]    |
[INFO] [stdout] 56 |                                    why.description()),
[INFO] [stdout]    |                                        ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:117:6
[INFO] [stdout]     |
[INFO] [stdout] 117 |     let mut events = ctx.event_pump().unwrap();
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/cpu.rs:54:7
[INFO] [stdout]    |
[INFO] [stdout] 54 |         let mut file = match File::open(&path) {
[INFO] [stdout]    |             ----^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `do_opcode`
[INFO] [stdout]    --> src/cpu.rs:325:9
[INFO] [stdout]     |
[INFO] [stdout] 325 |     pub fn do_opcode(&mut self, opcode: u16) {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/main.rs:90:7
[INFO] [stdout]    |
[INFO] [stdout] 90 |                         r.draw_point(Point::new(i as i32, j as i32));
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/main.rs:113:2
[INFO] [stdout]     |
[INFO] [stdout] 113 |     renderer.set_scale(WINDOW_SCALE as f32, WINDOW_SCALE as f32);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `Vx` should have a snake case name
[INFO] [stdout]    --> src/cpu.rs:225:10
[INFO] [stdout]     |
[INFO] [stdout] 225 |                 let (Vx, Vy) = (self.v[x as usize] as usize, self.v[y as usize] as usize);
[INFO] [stdout]     |                      ^^ help: convert the identifier to snake case (notice the capitalization): `vx`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `Vy` should have a snake case name
[INFO] [stdout]    --> src/cpu.rs:225:14
[INFO] [stdout]     |
[INFO] [stdout] 225 |                 let (Vx, Vy) = (self.v[x as usize] as usize, self.v[y as usize] as usize);
[INFO] [stdout]     |                          ^^ help: convert the identifier to snake case (notice the capitalization): `vy`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.14s
[INFO] running `Command { std: "docker" "inspect" "87d8ac2982fab99fe369470d6ae065dbbe52eda2a0d60a7a4c9e3a5898f4dfac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "87d8ac2982fab99fe369470d6ae065dbbe52eda2a0d60a7a4c9e3a5898f4dfac", kill_on_drop: false }`
[INFO] [stdout] 87d8ac2982fab99fe369470d6ae065dbbe52eda2a0d60a7a4c9e3a5898f4dfac
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a7392d6a99dea4d21ee2b00857438fee1ca4844aadf8f80d23ce5b0b05a5a248
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "a7392d6a99dea4d21ee2b00857438fee1ca4844aadf8f80d23ce5b0b05a5a248", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `std::env::current_dir`
[INFO] [stderr]  --> src/cpu.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::env::current_dir;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]   --> src/main.rs:52:5
[INFO] [stderr]    |
[INFO] [stderr] 52 |         if(c.do_cycle()) {
[INFO] [stderr]    |           ^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/cpu.rs:56:16
[INFO] [stderr]    |
[INFO] [stderr] 56 |                                    why.description()),
[INFO] [stderr]    |                                        ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:117:6
[INFO] [stderr]     |
[INFO] [stderr] 117 |     let mut events = ctx.event_pump().unwrap();
[INFO] [stderr]     |         ----^^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/cpu.rs:54:7
[INFO] [stderr]    |
[INFO] [stderr] 54 |         let mut file = match File::open(&path) {
[INFO] [stderr]    |             ----^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `do_opcode`
[INFO] [stderr]    --> src/cpu.rs:325:9
[INFO] [stderr]     |
[INFO] [stderr] 325 |     pub fn do_opcode(&mut self, opcode: u16) {
[INFO] [stderr]     |            ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:90:7
[INFO] [stderr]    |
[INFO] [stderr] 90 |                         r.draw_point(Point::new(i as i32, j as i32));
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/main.rs:113:2
[INFO] [stderr]     |
[INFO] [stderr] 113 |     renderer.set_scale(WINDOW_SCALE as f32, WINDOW_SCALE as f32);
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: variable `Vx` should have a snake case name
[INFO] [stderr]    --> src/cpu.rs:225:10
[INFO] [stderr]     |
[INFO] [stderr] 225 |                 let (Vx, Vy) = (self.v[x as usize] as usize, self.v[y as usize] as usize);
[INFO] [stderr]     |                      ^^ help: convert the identifier to snake case (notice the capitalization): `vx`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `Vy` should have a snake case name
[INFO] [stderr]    --> src/cpu.rs:225:14
[INFO] [stderr]     |
[INFO] [stderr] 225 |                 let (Vx, Vy) = (self.v[x as usize] as usize, self.v[y as usize] as usize);
[INFO] [stderr]     |                          ^^ help: convert the identifier to snake case (notice the capitalization): `vy`
[INFO] [stderr] 
[INFO] [stderr] warning: 10 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.14s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/chip8_emu-00e3b4053c644913
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a7392d6a99dea4d21ee2b00857438fee1ca4844aadf8f80d23ce5b0b05a5a248", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7392d6a99dea4d21ee2b00857438fee1ca4844aadf8f80d23ce5b0b05a5a248", kill_on_drop: false }`
[INFO] [stdout] a7392d6a99dea4d21ee2b00857438fee1ca4844aadf8f80d23ce5b0b05a5a248