[INFO] updating cached repository Rowmance/Chip8
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Rowmance/Chip8
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Rowmance/Chip8" "work/ex/clippy-test-run/sources/stable/gh/Rowmance/Chip8"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/Rowmance/Chip8'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Rowmance/Chip8" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/Rowmance/Chip8"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/Rowmance/Chip8'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 402a8ba49253521f7d64cf9b201b74a452826c5f
[INFO] sha for GitHub repo Rowmance/Chip8: 402a8ba49253521f7d64cf9b201b74a452826c5f
[INFO] validating manifest of Rowmance/Chip8 on toolchain stable
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of Rowmance/Chip8 on toolchain stable+rustflags=-Dclippy::into_iter_on_array
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing Rowmance/Chip8
[INFO] finished frobbing Rowmance/Chip8
[INFO] frobbed toml for Rowmance/Chip8 written to work/ex/clippy-test-run/sources/stable/gh/Rowmance/Chip8/Cargo.toml
[INFO] started frobbing Rowmance/Chip8
[INFO] finished frobbing Rowmance/Chip8
[INFO] frobbed toml for Rowmance/Chip8 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/Rowmance/Chip8/Cargo.toml
[INFO] crate Rowmance/Chip8 has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] linting Rowmance/Chip8 against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-7/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/gh/Rowmance/Chip8:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+stable" "clippy" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] c086d7bf2638bc2196bc264feeccfddd78824db6c30654c40e74405ec3128c27
[INFO] running `"docker" "start" "-a" "c086d7bf2638bc2196bc264feeccfddd78824db6c30654c40e74405ec3128c27"`
[INFO] [stderr]     Checking chip8 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]    --> src/cpu.rs:260:45
[INFO] [stderr]     |
[INFO] [stderr] 260 |         self.v[0xF] = (self.v[x as usize] & 0b10000000) >> 7;
[INFO] [stderr]     |                                             ^^^^^^^^^^ help: consider: `0b1000_0000`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::unreadable_literal)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/graphics.rs:24:9
[INFO] [stderr]    |
[INFO] [stderr] 24 |         return state && !self.memory[index];
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `state && !self.memory[index]`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_return)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `sdl2::event::Event`
[INFO] [stderr]  --> src/keypad.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use sdl2::event::Event;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `graphics::Graphics`
[INFO] [stderr]  --> src/io.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use graphics::Graphics;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `sdl2::rect::Point`
[INFO] [stderr]  --> src/io.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use sdl2::rect::Point;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::time::Duration`
[INFO] [stderr]  --> src/io.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::time::Duration;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `graphics::Graphics`
[INFO] [stderr]   --> src/main.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 | use graphics::Graphics;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `keypad::Keypad`
[INFO] [stderr]   --> src/main.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 | use keypad::Keypad;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]    --> src/cpu.rs:260:45
[INFO] [stderr]     |
[INFO] [stderr] 260 |         self.v[0xF] = (self.v[x as usize] & 0b10000000) >> 7;
[INFO] [stderr]     |                                             ^^^^^^^^^^ help: consider: `0b1000_0000`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::unreadable_literal)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/graphics.rs:24:9
[INFO] [stderr]    |
[INFO] [stderr] 24 |         return state && !self.memory[index];
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `state && !self.memory[index]`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_return)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `sdl2::event::Event`
[INFO] [stderr]  --> src/keypad.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use sdl2::event::Event;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `graphics::Graphics`
[INFO] [stderr]  --> src/io.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use graphics::Graphics;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `sdl2::rect::Point`
[INFO] [stderr]  --> src/io.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use sdl2::rect::Point;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::time::Duration`
[INFO] [stderr]  --> src/io.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::time::Duration;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `graphics::Graphics`
[INFO] [stderr]   --> src/main.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 | use graphics::Graphics;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `keypad::Keypad`
[INFO] [stderr]   --> src/main.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 | use keypad::Keypad;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `ld_key`
[INFO] [stderr]    --> src/cpu.rs:318:5
[INFO] [stderr]     |
[INFO] [stderr] 318 |     fn ld_key(&mut self, x: u8) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `PONG`
[INFO] [stderr]   --> src/main.rs:20:1
[INFO] [stderr]    |
[INFO] [stderr] 20 | / const PONG: [u8; 246] = [
[INFO] [stderr] 21 | |     0x6a, 0x02, 0x6b, 0x0c, 0x6c, 0x3f, 0x6d, 0x0c, 0xa2, 0xea, 0xda, 0xb6, 0xdc, 0xd6, 0x6e, 0x00,
[INFO] [stderr] 22 | |     0x22, 0xd4, 0x66, 0x03, 0x68, 0x02, 0x60, 0x60, 0xf0, 0x15, 0xf0, 0x07, 0x30, 0x00, 0x12, 0x1a,
[INFO] [stderr] 23 | |     0xc7, 0x17, 0x77, 0x08, 0x69, 0xff, 0xa2, 0xf0, 0xd6, 0x71, 0xa2, 0xea, 0xda, 0xb6, 0xdc, 0xd6,
[INFO] [stderr] ...  |
[INFO] [stderr] 36 | |     0x80, 0x00, 0x00, 0x00, 0x00, 0x00
[INFO] [stderr] 37 | | ];
[INFO] [stderr]    | |__^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `TEST`
[INFO] [stderr]   --> src/main.rs:39:1
[INFO] [stderr]    |
[INFO] [stderr] 39 | / const TEST: [u8; 470] = [
[INFO] [stderr] 40 | |     0x00, 0xe0, 0x63, 0x00, 0x64, 0x01, 0x65, 0xee, 0x35, 0xee, 0x13, 0x10, 0x63, 0x00, 0x64, 0x02,
[INFO] [stderr] 41 | |     0x65, 0xee, 0x66, 0xee, 0x55, 0x60, 0x13, 0x10, 0x63, 0x00, 0x64, 0x03, 0x65, 0xee, 0x45, 0xfd,
[INFO] [stderr] 42 | |     0x13, 0x10, 0x63, 0x00, 0x64, 0x04, 0x65, 0xee, 0x75, 0x01, 0x35, 0xef, 0x13, 0x10, 0x63, 0x00,
[INFO] [stderr] ...  |
[INFO] [stderr] 69 | |     0x00, 0x00, 0x00, 0x00, 0x00, 0x00
[INFO] [stderr] 70 | | ];
[INFO] [stderr]    | |__^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `TEST2`
[INFO] [stderr]   --> src/main.rs:72:1
[INFO] [stderr]    |
[INFO] [stderr] 72 | / const TEST2: [u8; 176] = [
[INFO] [stderr] 73 | |     0x22, 0x80, 0xcc, 0x01, 0x4c, 0x01, 0x12, 0x16, 0xca, 0x3e, 0x6b, 0x02, 0x4a, 0x00, 0x12, 0x02,
[INFO] [stderr] 74 | |     0xa2, 0xa1, 0xda, 0xb1, 0x12, 0x24, 0xcb, 0x1e, 0x6a, 0x02, 0x4b, 0x00, 0x12, 0x02, 0xa2, 0xa1,
[INFO] [stderr] 75 | |     0xda, 0xb1, 0x00, 0x00, 0xcd, 0x03, 0x4d, 0x00, 0x7a, 0xff, 0x4a, 0x01, 0x7a, 0x02, 0x4d, 0x01,
[INFO] [stderr] ...  |
[INFO] [stderr] 83 | |     0xff, 0x80, 0x6b, 0x01, 0xa2, 0xa1, 0xda, 0xb1, 0x7b, 0x01, 0x3b, 0x1f, 0x12, 0xa4, 0x00, 0xee
[INFO] [stderr] 84 | | ];
[INFO] [stderr]    | |__^
[INFO] [stderr] 
[INFO] [stderr] warning: you should consider adding a `Default` implementation for `cpu::Cpu`
[INFO] [stderr]   --> src/cpu.rs:48:5
[INFO] [stderr]    |
[INFO] [stderr] 48 | /     pub fn new() -> Self {
[INFO] [stderr] 49 | |         let mut initial_memory = [0; 4096];
[INFO] [stderr] 50 | |         for i in 0..FONT_SET.len() {
[INFO] [stderr] 51 | |             initial_memory[i] = FONT_SET[i];
[INFO] [stderr] ...  |
[INFO] [stderr] 66 | |         }
[INFO] [stderr] 67 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::new_without_default)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_without_default
[INFO] [stderr] help: try this
[INFO] [stderr]    |
[INFO] [stderr] 46 | impl Default for cpu::Cpu {
[INFO] [stderr] 47 |     fn default() -> Self {
[INFO] [stderr] 48 |         Self::new()
[INFO] [stderr] 49 |     }
[INFO] [stderr] 50 | }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: it looks like you're manually copying between slices
[INFO] [stderr]   --> src/cpu.rs:50:18
[INFO] [stderr]    |
[INFO] [stderr] 50 |         for i in 0..FONT_SET.len() {
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^^ help: try replacing the loop by: `initial_memory[..FONT_SET.len()].clone_from_slice(&FONT_SET[..])`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::manual_memcpy)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_memcpy
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `x` is used to index `rom`
[INFO] [stderr]   --> src/cpu.rs:72:18
[INFO] [stderr]    |
[INFO] [stderr] 72 |         for x in 0..rom.len() {
[INFO] [stderr]    |                  ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_range_loop)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stderr] help: consider using an iterator
[INFO] [stderr]    |
[INFO] [stderr] 72 |         for (x, <item>) in rom.iter().enumerate() {
[INFO] [stderr]    |             ^^^^^^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u16 may become silently lossy if types change
[INFO] [stderr]   --> src/cpu.rs:81:21
[INFO] [stderr]    |
[INFO] [stderr] 81 |         let part1 = self.memory[self.pc as usize] as u16;
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `u16::from(self.memory[self.pc as usize])`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::cast_lossless)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u16 may become silently lossy if types change
[INFO] [stderr]   --> src/cpu.rs:82:21
[INFO] [stderr]    |
[INFO] [stderr] 82 |         let part2 = self.memory[self.pc as usize + 1] as u16;
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `u16::from(self.memory[self.pc as usize + 1])`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u16 may become silently lossy if types change
[INFO] [stderr]    --> src/cpu.rs:194:18
[INFO] [stderr]     |
[INFO] [stderr] 194 |         let vx = self.v[x as usize] as u16;
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `u16::from(self.v[x as usize])`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u16 may become silently lossy if types change
[INFO] [stderr]    --> src/cpu.rs:195:27
[INFO] [stderr]     |
[INFO] [stderr] 195 |         let result = vx + (kk as u16);
[INFO] [stderr]     |                           ^^^^^^^^^^^ help: try: `u16::from(kk)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u16 may become silently lossy if types change
[INFO] [stderr]    --> src/cpu.rs:227:18
[INFO] [stderr]     |
[INFO] [stderr] 227 |         let vx = self.v[x as usize] as u16;
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `u16::from(self.v[x as usize])`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u16 may become silently lossy if types change
[INFO] [stderr]    --> src/cpu.rs:228:18
[INFO] [stderr]     |
[INFO] [stderr] 228 |         let vy = self.v[y as usize] as u16;
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `u16::from(self.v[y as usize])`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u16 may become silently lossy if types change
[INFO] [stderr]    --> src/cpu.rs:278:26
[INFO] [stderr]     |
[INFO] [stderr] 278 |         self.pc = addr + self.v[0] as u16;
[INFO] [stderr]     |                          ^^^^^^^^^^^^^^^^ help: try: `u16::from(self.v[0])`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u16 may become silently lossy if types change
[INFO] [stderr]    --> src/cpu.rs:341:19
[INFO] [stderr]     |
[INFO] [stderr] 341 |         self.i += self.v[x as usize] as u16;
[INFO] [stderr]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `u16::from(self.v[x as usize])`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u16 may become silently lossy if types change
[INFO] [stderr]    --> src/cpu.rs:348:18
[INFO] [stderr]     |
[INFO] [stderr] 348 |         self.i = self.v[x as usize] as u16 * 5;
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `u16::from(self.v[x as usize])`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: this call to `as_ref` does nothing
[INFO] [stderr]   --> src/graphics.rs:43:30
[INFO] [stderr]    |
[INFO] [stderr] 43 |                 str.push_str(strbit.as_ref());
[INFO] [stderr]    |                              ^^^^^^^^^^^^^^^ help: try this: `strbit`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::useless_asref)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_asref
[INFO] [stderr] 
[INFO] [stderr] warning: you should consider adding a `Default` implementation for `graphics::Graphics`
[INFO] [stderr]   --> src/graphics.rs:53:5
[INFO] [stderr]    |
[INFO] [stderr] 53 | /     pub fn new() -> Self {
[INFO] [stderr] 54 | |         Graphics {
[INFO] [stderr] 55 | |             memory: [false; (WIDTH * HEIGHT) as usize]
[INFO] [stderr] 56 | |         }
[INFO] [stderr] 57 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_without_default
[INFO] [stderr] help: try this
[INFO] [stderr]    |
[INFO] [stderr] 51 | impl Default for graphics::Graphics {
[INFO] [stderr] 52 |     fn default() -> Self {
[INFO] [stderr] 53 |         Self::new()
[INFO] [stderr] 54 |     }
[INFO] [stderr] 55 | }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `yy` is used to index `bytes`
[INFO] [stderr]   --> src/graphics.rs:73:19
[INFO] [stderr]    |
[INFO] [stderr] 73 |         for yy in 0..bytes.len() {
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stderr] help: consider using an iterator
[INFO] [stderr]    |
[INFO] [stderr] 73 |         for (yy, <item>) in bytes.iter().enumerate() {
[INFO] [stderr]    |             ^^^^^^^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/io.rs:53:17
[INFO] [stderr]    |
[INFO] [stderr] 53 |                 self.canvas.fill_rect(Rect::new((x * SCALE) as i32, (y * SCALE) as i32, SCALE, SCALE));
[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: method is never used: `ld_key`
[INFO] [stderr]    --> src/cpu.rs:318:5
[INFO] [stderr]     |
[INFO] [stderr] 318 |     fn ld_key(&mut self, x: u8) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `PONG`
[INFO] [stderr]   --> src/main.rs:20:1
[INFO] [stderr]    |
[INFO] [stderr] 20 | / const PONG: [u8; 246] = [
[INFO] [stderr] 21 | |     0x6a, 0x02, 0x6b, 0x0c, 0x6c, 0x3f, 0x6d, 0x0c, 0xa2, 0xea, 0xda, 0xb6, 0xdc, 0xd6, 0x6e, 0x00,
[INFO] [stderr] 22 | |     0x22, 0xd4, 0x66, 0x03, 0x68, 0x02, 0x60, 0x60, 0xf0, 0x15, 0xf0, 0x07, 0x30, 0x00, 0x12, 0x1a,
[INFO] [stderr] 23 | |     0xc7, 0x17, 0x77, 0x08, 0x69, 0xff, 0xa2, 0xf0, 0xd6, 0x71, 0xa2, 0xea, 0xda, 0xb6, 0xdc, 0xd6,
[INFO] [stderr] ...  |
[INFO] [stderr] 36 | |     0x80, 0x00, 0x00, 0x00, 0x00, 0x00
[INFO] [stderr] 37 | | ];
[INFO] [stderr]    | |__^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `TEST`
[INFO] [stderr]   --> src/main.rs:39:1
[INFO] [stderr]    |
[INFO] [stderr] 39 | / const TEST: [u8; 470] = [
[INFO] [stderr] 40 | |     0x00, 0xe0, 0x63, 0x00, 0x64, 0x01, 0x65, 0xee, 0x35, 0xee, 0x13, 0x10, 0x63, 0x00, 0x64, 0x02,
[INFO] [stderr] 41 | |     0x65, 0xee, 0x66, 0xee, 0x55, 0x60, 0x13, 0x10, 0x63, 0x00, 0x64, 0x03, 0x65, 0xee, 0x45, 0xfd,
[INFO] [stderr] 42 | |     0x13, 0x10, 0x63, 0x00, 0x64, 0x04, 0x65, 0xee, 0x75, 0x01, 0x35, 0xef, 0x13, 0x10, 0x63, 0x00,
[INFO] [stderr] ...  |
[INFO] [stderr] 69 | |     0x00, 0x00, 0x00, 0x00, 0x00, 0x00
[INFO] [stderr] 70 | | ];
[INFO] [stderr]    | |__^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `TEST2`
[INFO] [stderr]   --> src/main.rs:72:1
[INFO] [stderr]    |
[INFO] [stderr] 72 | / const TEST2: [u8; 176] = [
[INFO] [stderr] 73 | |     0x22, 0x80, 0xcc, 0x01, 0x4c, 0x01, 0x12, 0x16, 0xca, 0x3e, 0x6b, 0x02, 0x4a, 0x00, 0x12, 0x02,
[INFO] [stderr] 74 | |     0xa2, 0xa1, 0xda, 0xb1, 0x12, 0x24, 0xcb, 0x1e, 0x6a, 0x02, 0x4b, 0x00, 0x12, 0x02, 0xa2, 0xa1,
[INFO] [stderr] 75 | |     0xda, 0xb1, 0x00, 0x00, 0xcd, 0x03, 0x4d, 0x00, 0x7a, 0xff, 0x4a, 0x01, 0x7a, 0x02, 0x4d, 0x01,
[INFO] [stderr] ...  |
[INFO] [stderr] 83 | |     0xff, 0x80, 0x6b, 0x01, 0xa2, 0xa1, 0xda, 0xb1, 0x7b, 0x01, 0x3b, 0x1f, 0x12, 0xa4, 0x00, 0xee
[INFO] [stderr] 84 | | ];
[INFO] [stderr]    | |__^
[INFO] [stderr] 
[INFO] [stderr] warning: you should consider adding a `Default` implementation for `cpu::Cpu`
[INFO] [stderr]   --> src/cpu.rs:48:5
[INFO] [stderr]    |
[INFO] [stderr] 48 | /     pub fn new() -> Self {
[INFO] [stderr] 49 | |         let mut initial_memory = [0; 4096];
[INFO] [stderr] 50 | |         for i in 0..FONT_SET.len() {
[INFO] [stderr] 51 | |             initial_memory[i] = FONT_SET[i];
[INFO] [stderr] ...  |
[INFO] [stderr] 66 | |         }
[INFO] [stderr] 67 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::new_without_default)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_without_default
[INFO] [stderr] help: try this
[INFO] [stderr]    |
[INFO] [stderr] 46 | impl Default for cpu::Cpu {
[INFO] [stderr] 47 |     fn default() -> Self {
[INFO] [stderr] 48 |         Self::new()
[INFO] [stderr] 49 |     }
[INFO] [stderr] 50 | }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: it looks like you're manually copying between slices
[INFO] [stderr]   --> src/cpu.rs:50:18
[INFO] [stderr]    |
[INFO] [stderr] 50 |         for i in 0..FONT_SET.len() {
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^^ help: try replacing the loop by: `initial_memory[..FONT_SET.len()].clone_from_slice(&FONT_SET[..])`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::manual_memcpy)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_memcpy
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `x` is used to index `rom`
[INFO] [stderr]   --> src/cpu.rs:72:18
[INFO] [stderr]    |
[INFO] [stderr] 72 |         for x in 0..rom.len() {
[INFO] [stderr]    |                  ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_range_loop)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stderr] help: consider using an iterator
[INFO] [stderr]    |
[INFO] [stderr] 72 |         for (x, <item>) in rom.iter().enumerate() {
[INFO] [stderr]    |             ^^^^^^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u16 may become silently lossy if types change
[INFO] [stderr]   --> src/cpu.rs:81:21
[INFO] [stderr]    |
[INFO] [stderr] 81 |         let part1 = self.memory[self.pc as usize] as u16;
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `u16::from(self.memory[self.pc as usize])`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::cast_lossless)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u16 may become silently lossy if types change
[INFO] [stderr]   --> src/cpu.rs:82:21
[INFO] [stderr]    |
[INFO] [stderr] 82 |         let part2 = self.memory[self.pc as usize + 1] as u16;
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `u16::from(self.memory[self.pc as usize + 1])`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u16 may become silently lossy if types change
[INFO] [stderr]    --> src/cpu.rs:194:18
[INFO] [stderr]     |
[INFO] [stderr] 194 |         let vx = self.v[x as usize] as u16;
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `u16::from(self.v[x as usize])`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u16 may become silently lossy if types change
[INFO] [stderr]    --> src/cpu.rs:195:27
[INFO] [stderr]     |
[INFO] [stderr] 195 |         let result = vx + (kk as u16);
[INFO] [stderr]     |                           ^^^^^^^^^^^ help: try: `u16::from(kk)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u16 may become silently lossy if types change
[INFO] [stderr]    --> src/cpu.rs:227:18
[INFO] [stderr]     |
[INFO] [stderr] 227 |         let vx = self.v[x as usize] as u16;
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `u16::from(self.v[x as usize])`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u16 may become silently lossy if types change
[INFO] [stderr]    --> src/cpu.rs:228:18
[INFO] [stderr]     |
[INFO] [stderr] 228 |         let vy = self.v[y as usize] as u16;
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `u16::from(self.v[y as usize])`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u16 may become silently lossy if types change
[INFO] [stderr]    --> src/cpu.rs:278:26
[INFO] [stderr]     |
[INFO] [stderr] 278 |         self.pc = addr + self.v[0] as u16;
[INFO] [stderr]     |                          ^^^^^^^^^^^^^^^^ help: try: `u16::from(self.v[0])`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u16 may become silently lossy if types change
[INFO] [stderr]    --> src/cpu.rs:341:19
[INFO] [stderr]     |
[INFO] [stderr] 341 |         self.i += self.v[x as usize] as u16;
[INFO] [stderr]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `u16::from(self.v[x as usize])`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u16 may become silently lossy if types change
[INFO] [stderr]    --> src/cpu.rs:348:18
[INFO] [stderr]     |
[INFO] [stderr] 348 |         self.i = self.v[x as usize] as u16 * 5;
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `u16::from(self.v[x as usize])`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: this call to `as_ref` does nothing
[INFO] [stderr]   --> src/graphics.rs:43:30
[INFO] [stderr]    |
[INFO] [stderr] 43 |                 str.push_str(strbit.as_ref());
[INFO] [stderr]    |                              ^^^^^^^^^^^^^^^ help: try this: `strbit`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::useless_asref)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_asref
[INFO] [stderr] 
[INFO] [stderr] warning: you should consider adding a `Default` implementation for `graphics::Graphics`
[INFO] [stderr]   --> src/graphics.rs:53:5
[INFO] [stderr]    |
[INFO] [stderr] 53 | /     pub fn new() -> Self {
[INFO] [stderr] 54 | |         Graphics {
[INFO] [stderr] 55 | |             memory: [false; (WIDTH * HEIGHT) as usize]
[INFO] [stderr] 56 | |         }
[INFO] [stderr] 57 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_without_default
[INFO] [stderr] help: try this
[INFO] [stderr]    |
[INFO] [stderr] 51 | impl Default for graphics::Graphics {
[INFO] [stderr] 52 |     fn default() -> Self {
[INFO] [stderr] 53 |         Self::new()
[INFO] [stderr] 54 |     }
[INFO] [stderr] 55 | }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `yy` is used to index `bytes`
[INFO] [stderr]   --> src/graphics.rs:73:19
[INFO] [stderr]    |
[INFO] [stderr] 73 |         for yy in 0..bytes.len() {
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stderr] help: consider using an iterator
[INFO] [stderr]    |
[INFO] [stderr] 73 |         for (yy, <item>) in bytes.iter().enumerate() {
[INFO] [stderr]    |             ^^^^^^^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/io.rs:53:17
[INFO] [stderr]    |
[INFO] [stderr] 53 |                 self.canvas.fill_rect(Rect::new((x * SCALE) as i32, (y * SCALE) as i32, SCALE, SCALE));
[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]     Finished dev [unoptimized + debuginfo] target(s) in 4.14s
[INFO] running `"docker" "inspect" "c086d7bf2638bc2196bc264feeccfddd78824db6c30654c40e74405ec3128c27"`
[INFO] running `"docker" "rm" "-f" "c086d7bf2638bc2196bc264feeccfddd78824db6c30654c40e74405ec3128c27"`
[INFO] [stdout] c086d7bf2638bc2196bc264feeccfddd78824db6c30654c40e74405ec3128c27