[INFO] cloning repository https://github.com/teja635/chip8 [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/teja635/chip8" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fteja635%2Fchip8", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fteja635%2Fchip8'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] cde7ba86cb389c21b13d42b37ccfe4c7f9e3e762 [INFO] checking teja635/chip8 against master#22572d0994593197593e2a1b7b18d720a9a349a7 for pr-126452-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fteja635%2Fchip8" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/teja635/chip8 on toolchain 22572d0994593197593e2a1b7b18d720a9a349a7 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/teja635/chip8 [INFO] finished tweaking git repo https://github.com/teja635/chip8 [INFO] tweaked toml for git repo https://github.com/teja635/chip8 written to /workspace/builds/worker-3-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/teja635/chip8 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" "+22572d0994593197593e2a1b7b18d720a9a349a7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded rand_os v0.1.1 [INFO] [stderr] Downloaded ncurses v5.98.0 [INFO] [stderr] Downloaded rand v0.6.4 [INFO] [stderr] Downloaded sdl2 v0.32.1 [INFO] [stderr] Downloaded sdl2-sys v0.32.5 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 9051355aeb8d560f0c9c807b906c4d4acd9794cdb838c37df69624c548a8ee4d [INFO] running `Command { std: "docker" "start" "-a" "9051355aeb8d560f0c9c807b906c4d4acd9794cdb838c37df69624c548a8ee4d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "9051355aeb8d560f0c9c807b906c4d4acd9794cdb838c37df69624c548a8ee4d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9051355aeb8d560f0c9c807b906c4d4acd9794cdb838c37df69624c548a8ee4d", kill_on_drop: false }` [INFO] [stdout] 9051355aeb8d560f0c9c807b906c4d4acd9794cdb838c37df69624c548a8ee4d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 7a5326500b65f3e8f66b71e1a2f9ed78ee644aa37da2682615e5455048f0ac2e [INFO] running `Command { std: "docker" "start" "-a" "7a5326500b65f3e8f66b71e1a2f9ed78ee644aa37da2682615e5455048f0ac2e", kill_on_drop: false }` [INFO] [stderr] Checking rand_core v0.3.0 [INFO] [stderr] Compiling autocfg v0.1.1 [INFO] [stderr] Compiling semver-parser v0.7.0 [INFO] [stderr] Compiling libc v0.2.46 [INFO] [stderr] Compiling num-traits v0.2.6 [INFO] [stderr] Compiling num-integer v0.1.39 [INFO] [stderr] Compiling num-iter v0.1.37 [INFO] [stderr] Compiling cfg-if v0.1.6 [INFO] [stderr] Compiling sdl2-sys v0.32.5 [INFO] [stderr] Compiling cc v1.0.28 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Compiling pkg-config v0.3.14 [INFO] [stderr] Checking rand_hc v0.1.0 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Compiling rand v0.6.4 [INFO] [stderr] Checking rand_isaac v0.1.1 [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Checking rand_xorshift v0.1.1 [INFO] [stderr] Checking lazy_static v1.2.0 [INFO] [stderr] Checking bitflags v1.0.4 [INFO] [stderr] Compiling rand_pcg v0.1.1 [INFO] [stderr] Compiling ncurses v5.98.0 [INFO] [stderr] Checking rand_os v0.1.1 [INFO] [stderr] Checking num v0.1.42 [INFO] [stderr] Checking sdl2 v0.32.1 [INFO] [stderr] Checking chip8 v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/cpu.rs:113:32 [INFO] [stdout] | [INFO] [stdout] 113 | pub fn clock_cycle(&mut self, mut disp: &mut display::GFX, mut keys: &mut keypad::Keypad) -> bool{ [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:113:61 [INFO] [stdout] | [INFO] [stdout] 113 | pub fn clock_cycle(&mut self, mut disp: &mut display::GFX, mut keys: &mut keypad::Keypad) -> bool{ [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/cpu.rs:113:32 [INFO] [stdout] | [INFO] [stdout] 113 | pub fn clock_cycle(&mut self, mut disp: &mut display::GFX, mut keys: &mut keypad::Keypad) -> bool{ [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:113:61 [INFO] [stdout] | [INFO] [stdout] 113 | pub fn clock_cycle(&mut self, mut disp: &mut display::GFX, mut keys: &mut keypad::Keypad) -> bool{ [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `output_binary` [INFO] [stdout] --> src/assembler.rs:5:37 [INFO] [stdout] | [INFO] [stdout] 5 | pub fn assemble(program_file: &str, output_binary: &str) { [INFO] [stdout] | ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_output_binary` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `timestamp` [INFO] [stdout] --> src/lib.rs:73:21 [INFO] [stdout] | [INFO] [stdout] 73 | Event::KeyDown{timestamp, window_id, keycode, scancode, keymod, repeat} => { [INFO] [stdout] | ^^^^^^^^^ help: try ignoring the field: `timestamp: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `window_id` [INFO] [stdout] --> src/lib.rs:73:32 [INFO] [stdout] | [INFO] [stdout] 73 | Event::KeyDown{timestamp, window_id, keycode, scancode, keymod, repeat} => { [INFO] [stdout] | ^^^^^^^^^ help: try ignoring the field: `window_id: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `scancode` [INFO] [stdout] --> src/lib.rs:73:52 [INFO] [stdout] | [INFO] [stdout] 73 | Event::KeyDown{timestamp, window_id, keycode, scancode, keymod, repeat} => { [INFO] [stdout] | ^^^^^^^^ help: try ignoring the field: `scancode: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `keymod` [INFO] [stdout] --> src/lib.rs:73:62 [INFO] [stdout] | [INFO] [stdout] 73 | Event::KeyDown{timestamp, window_id, keycode, scancode, keymod, repeat} => { [INFO] [stdout] | ^^^^^^ help: try ignoring the field: `keymod: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `repeat` [INFO] [stdout] --> src/lib.rs:73:70 [INFO] [stdout] | [INFO] [stdout] 73 | Event::KeyDown{timestamp, window_id, keycode, scancode, keymod, repeat} => { [INFO] [stdout] | ^^^^^^ help: try ignoring the field: `repeat: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `timestamp` [INFO] [stdout] --> src/lib.rs:76:19 [INFO] [stdout] | [INFO] [stdout] 76 | Event::KeyUp{timestamp, window_id, keycode, scancode, keymod, repeat} => { [INFO] [stdout] | ^^^^^^^^^ help: try ignoring the field: `timestamp: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `window_id` [INFO] [stdout] --> src/lib.rs:76:30 [INFO] [stdout] | [INFO] [stdout] 76 | Event::KeyUp{timestamp, window_id, keycode, scancode, keymod, repeat} => { [INFO] [stdout] | ^^^^^^^^^ help: try ignoring the field: `window_id: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `scancode` [INFO] [stdout] --> src/lib.rs:76:50 [INFO] [stdout] | [INFO] [stdout] 76 | Event::KeyUp{timestamp, window_id, keycode, scancode, keymod, repeat} => { [INFO] [stdout] | ^^^^^^^^ help: try ignoring the field: `scancode: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `keymod` [INFO] [stdout] --> src/lib.rs:76:60 [INFO] [stdout] | [INFO] [stdout] 76 | Event::KeyUp{timestamp, window_id, keycode, scancode, keymod, repeat} => { [INFO] [stdout] | ^^^^^^ help: try ignoring the field: `keymod: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `repeat` [INFO] [stdout] --> src/lib.rs:76:68 [INFO] [stdout] | [INFO] [stdout] 76 | Event::KeyUp{timestamp, window_id, keycode, scancode, keymod, repeat} => { [INFO] [stdout] | ^^^^^^ help: try ignoring the field: `repeat: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `video_ctx` and `timer` are never read [INFO] [stdout] --> src/lib.rs:16:2 [INFO] [stdout] | [INFO] [stdout] 13 | pub struct CHIP8 { [INFO] [stdout] | ----- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 16 | video_ctx: sdl2::VideoSubsystem, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] 17 | timer: sdl2::TimerSubsystem, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `dump_gfx_mem` and `gfx_memory` are never used [INFO] [stdout] --> src/display.rs:14:9 [INFO] [stdout] | [INFO] [stdout] 13 | impl GFX { [INFO] [stdout] | -------- methods in this implementation [INFO] [stdout] 14 | pub fn dump_gfx_mem(&self) { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 31 | pub fn gfx_memory(&self) -> [u64; 32] { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `st` is never read [INFO] [stdout] --> src/cpu.rs:19:2 [INFO] [stdout] | [INFO] [stdout] 11 | pub struct CPU { [INFO] [stdout] | --- field in this struct [INFO] [stdout] ... [INFO] [stdout] 19 | st: u8, [INFO] [stdout] | ^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `dump_memory` and `dump_registers` are never used [INFO] [stdout] --> src/cpu.rs:79:9 [INFO] [stdout] | [INFO] [stdout] 78 | impl CPU { [INFO] [stdout] | -------- methods in this implementation [INFO] [stdout] 79 | pub fn dump_memory(&self, start_idx: usize, end_idx: usize) { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 107 | pub fn dump_registers(&self) { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lib.rs:61:5 [INFO] [stdout] | [INFO] [stdout] 61 | self.canvas.fill_rect(Rect::new(20*x as i32, 20*y as i32, 20, 20)); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 61 | let _ = self.canvas.fill_rect(Rect::new(20*x as i32, 20*y as i32, 20, 20)); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `output_binary` [INFO] [stdout] --> src/assembler.rs:5:37 [INFO] [stdout] | [INFO] [stdout] 5 | pub fn assemble(program_file: &str, output_binary: &str) { [INFO] [stdout] | ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_output_binary` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: structure field `V` should have a snake case name [INFO] [stdout] --> src/cpu.rs:12:2 [INFO] [stdout] | [INFO] [stdout] 12 | V: [u8; 16], [INFO] [stdout] | ^ help: convert the identifier to snake case (notice the capitalization): `v` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: structure field `I` should have a snake case name [INFO] [stdout] --> src/cpu.rs:13:2 [INFO] [stdout] | [INFO] [stdout] 13 | I: u16, [INFO] [stdout] | ^ help: convert the identifier to snake case (notice the capitalization): `i` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/cpu.rs:25:2 [INFO] [stdout] | [INFO] [stdout] 25 | fd.read(&mut memory[0x200..]); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 25 | let _ = fd.read(&mut memory[0x200..]); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 21 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `timestamp` [INFO] [stdout] --> src/lib.rs:73:21 [INFO] [stdout] | [INFO] [stdout] 73 | Event::KeyDown{timestamp, window_id, keycode, scancode, keymod, repeat} => { [INFO] [stdout] | ^^^^^^^^^ help: try ignoring the field: `timestamp: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `window_id` [INFO] [stdout] --> src/lib.rs:73:32 [INFO] [stdout] | [INFO] [stdout] 73 | Event::KeyDown{timestamp, window_id, keycode, scancode, keymod, repeat} => { [INFO] [stdout] | ^^^^^^^^^ help: try ignoring the field: `window_id: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `scancode` [INFO] [stdout] --> src/lib.rs:73:52 [INFO] [stdout] | [INFO] [stdout] 73 | Event::KeyDown{timestamp, window_id, keycode, scancode, keymod, repeat} => { [INFO] [stdout] | ^^^^^^^^ help: try ignoring the field: `scancode: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `keymod` [INFO] [stdout] --> src/lib.rs:73:62 [INFO] [stdout] | [INFO] [stdout] 73 | Event::KeyDown{timestamp, window_id, keycode, scancode, keymod, repeat} => { [INFO] [stdout] | ^^^^^^ help: try ignoring the field: `keymod: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `repeat` [INFO] [stdout] --> src/lib.rs:73:70 [INFO] [stdout] | [INFO] [stdout] 73 | Event::KeyDown{timestamp, window_id, keycode, scancode, keymod, repeat} => { [INFO] [stdout] | ^^^^^^ help: try ignoring the field: `repeat: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `timestamp` [INFO] [stdout] --> src/lib.rs:76:19 [INFO] [stdout] | [INFO] [stdout] 76 | Event::KeyUp{timestamp, window_id, keycode, scancode, keymod, repeat} => { [INFO] [stdout] | ^^^^^^^^^ help: try ignoring the field: `timestamp: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `window_id` [INFO] [stdout] --> src/lib.rs:76:30 [INFO] [stdout] | [INFO] [stdout] 76 | Event::KeyUp{timestamp, window_id, keycode, scancode, keymod, repeat} => { [INFO] [stdout] | ^^^^^^^^^ help: try ignoring the field: `window_id: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `scancode` [INFO] [stdout] --> src/lib.rs:76:50 [INFO] [stdout] | [INFO] [stdout] 76 | Event::KeyUp{timestamp, window_id, keycode, scancode, keymod, repeat} => { [INFO] [stdout] | ^^^^^^^^ help: try ignoring the field: `scancode: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `keymod` [INFO] [stdout] --> src/lib.rs:76:60 [INFO] [stdout] | [INFO] [stdout] 76 | Event::KeyUp{timestamp, window_id, keycode, scancode, keymod, repeat} => { [INFO] [stdout] | ^^^^^^ help: try ignoring the field: `keymod: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `repeat` [INFO] [stdout] --> src/lib.rs:76:68 [INFO] [stdout] | [INFO] [stdout] 76 | Event::KeyUp{timestamp, window_id, keycode, scancode, keymod, repeat} => { [INFO] [stdout] | ^^^^^^ help: try ignoring the field: `repeat: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `video_ctx` and `timer` are never read [INFO] [stdout] --> src/lib.rs:16:2 [INFO] [stdout] | [INFO] [stdout] 13 | pub struct CHIP8 { [INFO] [stdout] | ----- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 16 | video_ctx: sdl2::VideoSubsystem, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] 17 | timer: sdl2::TimerSubsystem, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `dump_gfx_mem` and `gfx_memory` are never used [INFO] [stdout] --> src/display.rs:14:9 [INFO] [stdout] | [INFO] [stdout] 13 | impl GFX { [INFO] [stdout] | -------- methods in this implementation [INFO] [stdout] 14 | pub fn dump_gfx_mem(&self) { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 31 | pub fn gfx_memory(&self) -> [u64; 32] { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `st` is never read [INFO] [stdout] --> src/cpu.rs:19:2 [INFO] [stdout] | [INFO] [stdout] 11 | pub struct CPU { [INFO] [stdout] | --- field in this struct [INFO] [stdout] ... [INFO] [stdout] 19 | st: u8, [INFO] [stdout] | ^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `dump_memory` and `dump_registers` are never used [INFO] [stdout] --> src/cpu.rs:79:9 [INFO] [stdout] | [INFO] [stdout] 78 | impl CPU { [INFO] [stdout] | -------- methods in this implementation [INFO] [stdout] 79 | pub fn dump_memory(&self, start_idx: usize, end_idx: usize) { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 107 | pub fn dump_registers(&self) { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lib.rs:61:5 [INFO] [stdout] | [INFO] [stdout] 61 | self.canvas.fill_rect(Rect::new(20*x as i32, 20*y as i32, 20, 20)); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 61 | let _ = self.canvas.fill_rect(Rect::new(20*x as i32, 20*y as i32, 20, 20)); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: structure field `V` should have a snake case name [INFO] [stdout] --> src/cpu.rs:12:2 [INFO] [stdout] | [INFO] [stdout] 12 | V: [u8; 16], [INFO] [stdout] | ^ help: convert the identifier to snake case (notice the capitalization): `v` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: structure field `I` should have a snake case name [INFO] [stdout] --> src/cpu.rs:13:2 [INFO] [stdout] | [INFO] [stdout] 13 | I: u16, [INFO] [stdout] | ^ help: convert the identifier to snake case (notice the capitalization): `i` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/cpu.rs:25:2 [INFO] [stdout] | [INFO] [stdout] 25 | fd.read(&mut memory[0x200..]); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 25 | let _ = fd.read(&mut memory[0x200..]); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 21 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.83s [INFO] running `Command { std: "docker" "inspect" "7a5326500b65f3e8f66b71e1a2f9ed78ee644aa37da2682615e5455048f0ac2e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7a5326500b65f3e8f66b71e1a2f9ed78ee644aa37da2682615e5455048f0ac2e", kill_on_drop: false }` [INFO] [stdout] 7a5326500b65f3e8f66b71e1a2f9ed78ee644aa37da2682615e5455048f0ac2e [INFO] checking teja635/chip8 against try#6289438dbad80b1a0029c66dd3f6abf57c2c51be for pr-126452-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fteja635%2Fchip8" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/teja635/chip8 on toolchain 6289438dbad80b1a0029c66dd3f6abf57c2c51be [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/teja635/chip8 [INFO] finished tweaking git repo https://github.com/teja635/chip8 [INFO] tweaked toml for git repo https://github.com/teja635/chip8 written to /workspace/builds/worker-3-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/teja635/chip8 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" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] c0f96334f4a246594c00be48305ec8b18856fc52264883136a64232a8717aa10 [INFO] running `Command { std: "docker" "start" "-a" "c0f96334f4a246594c00be48305ec8b18856fc52264883136a64232a8717aa10", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "c0f96334f4a246594c00be48305ec8b18856fc52264883136a64232a8717aa10", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c0f96334f4a246594c00be48305ec8b18856fc52264883136a64232a8717aa10", kill_on_drop: false }` [INFO] [stdout] c0f96334f4a246594c00be48305ec8b18856fc52264883136a64232a8717aa10 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 54eca11ecc2ef18699c417b3e9a44543132955d830d2a9c17717eff23aeb7f79 [INFO] running `Command { std: "docker" "start" "-a" "54eca11ecc2ef18699c417b3e9a44543132955d830d2a9c17717eff23aeb7f79", kill_on_drop: false }` [INFO] [stderr] Checking rand_core v0.3.0 [INFO] [stderr] Compiling autocfg v0.1.1 [INFO] [stderr] Compiling semver-parser v0.7.0 [INFO] [stderr] Compiling num-traits v0.2.6 [INFO] [stderr] Compiling libc v0.2.46 [INFO] [stderr] Compiling num-integer v0.1.39 [INFO] [stderr] Compiling cfg-if v0.1.6 [INFO] [stderr] Compiling num-iter v0.1.37 [INFO] [stderr] Compiling sdl2-sys v0.32.5 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Compiling cc v1.0.28 [INFO] [stderr] Compiling pkg-config v0.3.14 [INFO] [stderr] Checking rand_xorshift v0.1.1 [INFO] [stderr] Checking rand_isaac v0.1.1 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Compiling rand v0.6.4 [INFO] [stderr] Checking rand_hc v0.1.0 [INFO] [stderr] Checking rand_os v0.1.1 [INFO] [stderr] Checking lazy_static v1.2.0 [INFO] [stderr] Checking bitflags v1.0.4 [INFO] [stderr] Compiling rand_pcg v0.1.1 [INFO] [stderr] Compiling ncurses v5.98.0 [INFO] [stderr] Checking num v0.1.42 [INFO] [stderr] Checking sdl2 v0.32.1 [INFO] [stderr] Checking chip8 v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/cpu.rs:113:32 [INFO] [stdout] | [INFO] [stdout] 113 | pub fn clock_cycle(&mut self, mut disp: &mut display::GFX, mut keys: &mut keypad::Keypad) -> bool{ [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:113:61 [INFO] [stdout] | [INFO] [stdout] 113 | pub fn clock_cycle(&mut self, mut disp: &mut display::GFX, mut keys: &mut keypad::Keypad) -> bool{ [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `output_binary` [INFO] [stdout] --> src/assembler.rs:5:37 [INFO] [stdout] | [INFO] [stdout] 5 | pub fn assemble(program_file: &str, output_binary: &str) { [INFO] [stdout] | ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_output_binary` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `timestamp` [INFO] [stdout] --> src/lib.rs:73:21 [INFO] [stdout] | [INFO] [stdout] 73 | Event::KeyDown{timestamp, window_id, keycode, scancode, keymod, repeat} => { [INFO] [stdout] | ^^^^^^^^^ help: try ignoring the field: `timestamp: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `window_id` [INFO] [stdout] --> src/lib.rs:73:32 [INFO] [stdout] | [INFO] [stdout] 73 | Event::KeyDown{timestamp, window_id, keycode, scancode, keymod, repeat} => { [INFO] [stdout] | ^^^^^^^^^ help: try ignoring the field: `window_id: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `scancode` [INFO] [stdout] --> src/lib.rs:73:52 [INFO] [stdout] | [INFO] [stdout] 73 | Event::KeyDown{timestamp, window_id, keycode, scancode, keymod, repeat} => { [INFO] [stdout] | ^^^^^^^^ help: try ignoring the field: `scancode: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `keymod` [INFO] [stdout] --> src/lib.rs:73:62 [INFO] [stdout] | [INFO] [stdout] 73 | Event::KeyDown{timestamp, window_id, keycode, scancode, keymod, repeat} => { [INFO] [stdout] | ^^^^^^ help: try ignoring the field: `keymod: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `repeat` [INFO] [stdout] --> src/lib.rs:73:70 [INFO] [stdout] | [INFO] [stdout] 73 | Event::KeyDown{timestamp, window_id, keycode, scancode, keymod, repeat} => { [INFO] [stdout] | ^^^^^^ help: try ignoring the field: `repeat: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `timestamp` [INFO] [stdout] --> src/lib.rs:76:19 [INFO] [stdout] | [INFO] [stdout] 76 | Event::KeyUp{timestamp, window_id, keycode, scancode, keymod, repeat} => { [INFO] [stdout] | ^^^^^^^^^ help: try ignoring the field: `timestamp: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `window_id` [INFO] [stdout] --> src/lib.rs:76:30 [INFO] [stdout] | [INFO] [stdout] 76 | Event::KeyUp{timestamp, window_id, keycode, scancode, keymod, repeat} => { [INFO] [stdout] | ^^^^^^^^^ help: try ignoring the field: `window_id: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `scancode` [INFO] [stdout] --> src/lib.rs:76:50 [INFO] [stdout] | [INFO] [stdout] 76 | Event::KeyUp{timestamp, window_id, keycode, scancode, keymod, repeat} => { [INFO] [stdout] | ^^^^^^^^ help: try ignoring the field: `scancode: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `keymod` [INFO] [stdout] --> src/lib.rs:76:60 [INFO] [stdout] | [INFO] [stdout] 76 | Event::KeyUp{timestamp, window_id, keycode, scancode, keymod, repeat} => { [INFO] [stdout] | ^^^^^^ help: try ignoring the field: `keymod: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `repeat` [INFO] [stdout] --> src/lib.rs:76:68 [INFO] [stdout] | [INFO] [stdout] 76 | Event::KeyUp{timestamp, window_id, keycode, scancode, keymod, repeat} => { [INFO] [stdout] | ^^^^^^ help: try ignoring the field: `repeat: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `video_ctx` and `timer` are never read [INFO] [stdout] --> src/lib.rs:16:2 [INFO] [stdout] | [INFO] [stdout] 13 | pub struct CHIP8 { [INFO] [stdout] | ----- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 16 | video_ctx: sdl2::VideoSubsystem, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] 17 | timer: sdl2::TimerSubsystem, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `dump_gfx_mem` and `gfx_memory` are never used [INFO] [stdout] --> src/display.rs:14:9 [INFO] [stdout] | [INFO] [stdout] 13 | impl GFX { [INFO] [stdout] | -------- methods in this implementation [INFO] [stdout] 14 | pub fn dump_gfx_mem(&self) { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 31 | pub fn gfx_memory(&self) -> [u64; 32] { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `st` is never read [INFO] [stdout] --> src/cpu.rs:19:2 [INFO] [stdout] | [INFO] [stdout] 11 | pub struct CPU { [INFO] [stdout] | --- field in this struct [INFO] [stdout] ... [INFO] [stdout] 19 | st: u8, [INFO] [stdout] | ^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `dump_memory` and `dump_registers` are never used [INFO] [stdout] --> src/cpu.rs:79:9 [INFO] [stdout] | [INFO] [stdout] 78 | impl CPU { [INFO] [stdout] | -------- methods in this implementation [INFO] [stdout] 79 | pub fn dump_memory(&self, start_idx: usize, end_idx: usize) { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 107 | pub fn dump_registers(&self) { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lib.rs:61:5 [INFO] [stdout] | [INFO] [stdout] 61 | self.canvas.fill_rect(Rect::new(20*x as i32, 20*y as i32, 20, 20)); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 61 | let _ = self.canvas.fill_rect(Rect::new(20*x as i32, 20*y as i32, 20, 20)); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: structure field `V` should have a snake case name [INFO] [stdout] --> src/cpu.rs:12:2 [INFO] [stdout] | [INFO] [stdout] 12 | V: [u8; 16], [INFO] [stdout] | ^ help: convert the identifier to snake case (notice the capitalization): `v` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: structure field `I` should have a snake case name [INFO] [stdout] --> src/cpu.rs:13:2 [INFO] [stdout] | [INFO] [stdout] 13 | I: u16, [INFO] [stdout] | ^ help: convert the identifier to snake case (notice the capitalization): `i` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/cpu.rs:25:2 [INFO] [stdout] | [INFO] [stdout] 25 | fd.read(&mut memory[0x200..]); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 25 | let _ = fd.read(&mut memory[0x200..]); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/cpu.rs:113:32 [INFO] [stdout] | [INFO] [stdout] 113 | pub fn clock_cycle(&mut self, mut disp: &mut display::GFX, mut keys: &mut keypad::Keypad) -> bool{ [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:113:61 [INFO] [stdout] | [INFO] [stdout] 113 | pub fn clock_cycle(&mut self, mut disp: &mut display::GFX, mut keys: &mut keypad::Keypad) -> bool{ [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 21 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `output_binary` [INFO] [stdout] --> src/assembler.rs:5:37 [INFO] [stdout] | [INFO] [stdout] 5 | pub fn assemble(program_file: &str, output_binary: &str) { [INFO] [stdout] | ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_output_binary` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `timestamp` [INFO] [stdout] --> src/lib.rs:73:21 [INFO] [stdout] | [INFO] [stdout] 73 | Event::KeyDown{timestamp, window_id, keycode, scancode, keymod, repeat} => { [INFO] [stdout] | ^^^^^^^^^ help: try ignoring the field: `timestamp: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `window_id` [INFO] [stdout] --> src/lib.rs:73:32 [INFO] [stdout] | [INFO] [stdout] 73 | Event::KeyDown{timestamp, window_id, keycode, scancode, keymod, repeat} => { [INFO] [stdout] | ^^^^^^^^^ help: try ignoring the field: `window_id: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `scancode` [INFO] [stdout] --> src/lib.rs:73:52 [INFO] [stdout] | [INFO] [stdout] 73 | Event::KeyDown{timestamp, window_id, keycode, scancode, keymod, repeat} => { [INFO] [stdout] | ^^^^^^^^ help: try ignoring the field: `scancode: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `keymod` [INFO] [stdout] --> src/lib.rs:73:62 [INFO] [stdout] | [INFO] [stdout] 73 | Event::KeyDown{timestamp, window_id, keycode, scancode, keymod, repeat} => { [INFO] [stdout] | ^^^^^^ help: try ignoring the field: `keymod: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `repeat` [INFO] [stdout] --> src/lib.rs:73:70 [INFO] [stdout] | [INFO] [stdout] 73 | Event::KeyDown{timestamp, window_id, keycode, scancode, keymod, repeat} => { [INFO] [stdout] | ^^^^^^ help: try ignoring the field: `repeat: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `timestamp` [INFO] [stdout] --> src/lib.rs:76:19 [INFO] [stdout] | [INFO] [stdout] 76 | Event::KeyUp{timestamp, window_id, keycode, scancode, keymod, repeat} => { [INFO] [stdout] | ^^^^^^^^^ help: try ignoring the field: `timestamp: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `window_id` [INFO] [stdout] --> src/lib.rs:76:30 [INFO] [stdout] | [INFO] [stdout] 76 | Event::KeyUp{timestamp, window_id, keycode, scancode, keymod, repeat} => { [INFO] [stdout] | ^^^^^^^^^ help: try ignoring the field: `window_id: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `scancode` [INFO] [stdout] --> src/lib.rs:76:50 [INFO] [stdout] | [INFO] [stdout] 76 | Event::KeyUp{timestamp, window_id, keycode, scancode, keymod, repeat} => { [INFO] [stdout] | ^^^^^^^^ help: try ignoring the field: `scancode: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `keymod` [INFO] [stdout] --> src/lib.rs:76:60 [INFO] [stdout] | [INFO] [stdout] 76 | Event::KeyUp{timestamp, window_id, keycode, scancode, keymod, repeat} => { [INFO] [stdout] | ^^^^^^ help: try ignoring the field: `keymod: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `repeat` [INFO] [stdout] --> src/lib.rs:76:68 [INFO] [stdout] | [INFO] [stdout] 76 | Event::KeyUp{timestamp, window_id, keycode, scancode, keymod, repeat} => { [INFO] [stdout] | ^^^^^^ help: try ignoring the field: `repeat: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `video_ctx` and `timer` are never read [INFO] [stdout] --> src/lib.rs:16:2 [INFO] [stdout] | [INFO] [stdout] 13 | pub struct CHIP8 { [INFO] [stdout] | ----- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 16 | video_ctx: sdl2::VideoSubsystem, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] 17 | timer: sdl2::TimerSubsystem, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `dump_gfx_mem` and `gfx_memory` are never used [INFO] [stdout] --> src/display.rs:14:9 [INFO] [stdout] | [INFO] [stdout] 13 | impl GFX { [INFO] [stdout] | -------- methods in this implementation [INFO] [stdout] 14 | pub fn dump_gfx_mem(&self) { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 31 | pub fn gfx_memory(&self) -> [u64; 32] { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `st` is never read [INFO] [stdout] --> src/cpu.rs:19:2 [INFO] [stdout] | [INFO] [stdout] 11 | pub struct CPU { [INFO] [stdout] | --- field in this struct [INFO] [stdout] ... [INFO] [stdout] 19 | st: u8, [INFO] [stdout] | ^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `dump_memory` and `dump_registers` are never used [INFO] [stdout] --> src/cpu.rs:79:9 [INFO] [stdout] | [INFO] [stdout] 78 | impl CPU { [INFO] [stdout] | -------- methods in this implementation [INFO] [stdout] 79 | pub fn dump_memory(&self, start_idx: usize, end_idx: usize) { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 107 | pub fn dump_registers(&self) { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lib.rs:61:5 [INFO] [stdout] | [INFO] [stdout] 61 | self.canvas.fill_rect(Rect::new(20*x as i32, 20*y as i32, 20, 20)); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 61 | let _ = self.canvas.fill_rect(Rect::new(20*x as i32, 20*y as i32, 20, 20)); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: structure field `V` should have a snake case name [INFO] [stdout] --> src/cpu.rs:12:2 [INFO] [stdout] | [INFO] [stdout] 12 | V: [u8; 16], [INFO] [stdout] | ^ help: convert the identifier to snake case (notice the capitalization): `v` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: structure field `I` should have a snake case name [INFO] [stdout] --> src/cpu.rs:13:2 [INFO] [stdout] | [INFO] [stdout] 13 | I: u16, [INFO] [stdout] | ^ help: convert the identifier to snake case (notice the capitalization): `i` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/cpu.rs:25:2 [INFO] [stdout] | [INFO] [stdout] 25 | fd.read(&mut memory[0x200..]); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 25 | let _ = fd.read(&mut memory[0x200..]); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 21 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.35s [INFO] running `Command { std: "docker" "inspect" "54eca11ecc2ef18699c417b3e9a44543132955d830d2a9c17717eff23aeb7f79", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "54eca11ecc2ef18699c417b3e9a44543132955d830d2a9c17717eff23aeb7f79", kill_on_drop: false }` [INFO] [stdout] 54eca11ecc2ef18699c417b3e9a44543132955d830d2a9c17717eff23aeb7f79