[INFO] cloning repository https://github.com/vgf89/chip8remu [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/vgf89/chip8remu" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvgf89%2Fchip8remu", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvgf89%2Fchip8remu'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 707eca34e5f059f297556c8afd76ee9af8be3870 [INFO] checking vgf89/chip8remu against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvgf89%2Fchip8remu" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/vgf89/chip8remu on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/vgf89/chip8remu [INFO] finished tweaking git repo https://github.com/vgf89/chip8remu [INFO] tweaked toml for git repo https://github.com/vgf89/chip8remu written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/vgf89/chip8remu 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded num v0.1.32 [INFO] [stderr] Downloaded num-traits v0.1.32 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 7b12f297e151c08660b3090afcae4654b5b11b8daff620764d1ce1d85760bc37 [INFO] running `Command { std: "docker" "start" "-a" "7b12f297e151c08660b3090afcae4654b5b11b8daff620764d1ce1d85760bc37", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "7b12f297e151c08660b3090afcae4654b5b11b8daff620764d1ce1d85760bc37", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7b12f297e151c08660b3090afcae4654b5b11b8daff620764d1ce1d85760bc37", kill_on_drop: false }` [INFO] [stdout] 7b12f297e151c08660b3090afcae4654b5b11b8daff620764d1ce1d85760bc37 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] d0cf2ee52fefe741fe03a51eeab10414d759c199c8251c8582971e1e1e623fae [INFO] running `Command { std: "docker" "start" "-a" "d0cf2ee52fefe741fe03a51eeab10414d759c199c8251c8582971e1e1e623fae", kill_on_drop: false }` [INFO] [stderr] Checking num-traits v0.1.32 [INFO] [stderr] Checking libc v0.2.11 [INFO] [stderr] Compiling sdl2-sys v0.30.0 [INFO] [stderr] Checking lazy_static v0.2.1 [INFO] [stderr] Checking bitflags v0.7.0 [INFO] [stderr] Checking rand v0.3.14 [INFO] [stderr] Checking num-integer v0.1.32 [INFO] [stderr] Checking num-iter v0.1.32 [INFO] [stderr] Checking num v0.1.32 [INFO] [stderr] Checking sdl2 v0.30.0 [INFO] [stderr] Checking chip8remu v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::path::Path` [INFO] [stdout] --> src/main.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | use std::path::Path; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Point` [INFO] [stdout] --> src/main.rs:9:18 [INFO] [stdout] | [INFO] [stdout] 9 | use sdl2::rect::{Point, Rect}; [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `sdl2::pixels::Color` [INFO] [stdout] --> src/main.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 10 | use sdl2::pixels::Color; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `sdl2::mouse::MouseButton` [INFO] [stdout] --> src/main.rs:12:5 [INFO] [stdout] | [INFO] [stdout] 12 | use sdl2::mouse::MouseButton; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `sdl2::keyboard::Keycode` [INFO] [stdout] --> src/main.rs:13:5 [INFO] [stdout] | [INFO] [stdout] 13 | use sdl2::keyboard::Keycode; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `WindowContext`, `Window` [INFO] [stdout] --> src/main.rs:14:19 [INFO] [stdout] | [INFO] [stdout] 14 | use sdl2::video::{Window, WindowContext}; [INFO] [stdout] | ^^^^^^ ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Canvas`, `TextureCreator`, `Texture` [INFO] [stdout] --> src/main.rs:15:20 [INFO] [stdout] | [INFO] [stdout] 15 | use sdl2::render::{Canvas, Texture, TextureCreator}; [INFO] [stdout] | ^^^^^^ ^^^^^^^ ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::io` [INFO] [stdout] --> src/chip8.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use std::io; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::num::Wrapping` [INFO] [stdout] --> src/chip8.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 9 | use std::num::Wrapping; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/chip8.rs:71:21 [INFO] [stdout] | [INFO] [stdout] 71 | let mut f = try!(File::open("roms/programs/Chip8 emulator Logo [Garstyciuks].ch8")); [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::path::Path` [INFO] [stdout] --> src/main.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | use std::path::Path; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Point` [INFO] [stdout] --> src/main.rs:9:18 [INFO] [stdout] | [INFO] [stdout] 9 | use sdl2::rect::{Point, Rect}; [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `sdl2::pixels::Color` [INFO] [stdout] --> src/main.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 10 | use sdl2::pixels::Color; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `sdl2::mouse::MouseButton` [INFO] [stdout] --> src/main.rs:12:5 [INFO] [stdout] | [INFO] [stdout] 12 | use sdl2::mouse::MouseButton; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `sdl2::keyboard::Keycode` [INFO] [stdout] --> src/main.rs:13:5 [INFO] [stdout] | [INFO] [stdout] 13 | use sdl2::keyboard::Keycode; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `WindowContext`, `Window` [INFO] [stdout] --> src/main.rs:14:19 [INFO] [stdout] | [INFO] [stdout] 14 | use sdl2::video::{Window, WindowContext}; [INFO] [stdout] | ^^^^^^ ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Canvas`, `TextureCreator`, `Texture` [INFO] [stdout] --> src/main.rs:15:20 [INFO] [stdout] | [INFO] [stdout] 15 | use sdl2::render::{Canvas, Texture, TextureCreator}; [INFO] [stdout] | ^^^^^^ ^^^^^^^ ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::io` [INFO] [stdout] --> src/chip8.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use std::io; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::num::Wrapping` [INFO] [stdout] --> src/chip8.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 9 | use std::num::Wrapping; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/chip8.rs:71:21 [INFO] [stdout] | [INFO] [stdout] 71 | let mut f = try!(File::open("roms/programs/Chip8 emulator Logo [Garstyciuks].ch8")); [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/chip8.rs:71:13 [INFO] [stdout] | [INFO] [stdout] 71 | let mut f = try!(File::open("roms/programs/Chip8 emulator Logo [Garstyciuks].ch8")); [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: unused variable: `x` [INFO] [stdout] --> src/chip8.rs:104:17 [INFO] [stdout] | [INFO] [stdout] 104 | let mut x = 0u8; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `y` [INFO] [stdout] --> src/chip8.rs:105:17 [INFO] [stdout] | [INFO] [stdout] 105 | let mut y = 0u8; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_y` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `height` [INFO] [stdout] --> src/chip8.rs:106:17 [INFO] [stdout] | [INFO] [stdout] 106 | let mut height = 0u8; [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_height` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `pixel` [INFO] [stdout] --> src/chip8.rs:107:17 [INFO] [stdout] | [INFO] [stdout] 107 | let mut pixel = 0u8; [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_pixel` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `addr` [INFO] [stdout] --> src/chip8.rs:119:17 [INFO] [stdout] | [INFO] [stdout] 119 | let mut addr = 0u16; [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_addr` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `j` is never read [INFO] [stdout] --> src/chip8.rs:351:25 [INFO] [stdout] | [INFO] [stdout] 351 | let mut j = 0u8; [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `newbit` is never read [INFO] [stdout] --> src/chip8.rs:352:25 [INFO] [stdout] | [INFO] [stdout] 352 | let mut newbit:bool = false; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `oldbit` [INFO] [stdout] --> src/chip8.rs:353:25 [INFO] [stdout] | [INFO] [stdout] 353 | let mut oldbit:bool = false; [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_oldbit` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `vx` [INFO] [stdout] --> src/chip8.rs:462:29 [INFO] [stdout] | [INFO] [stdout] 462 | let vx = (self.v[x as usize] & 0x000F) as u16; [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_vx` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/chip8.rs:104:13 [INFO] [stdout] | [INFO] [stdout] 104 | let mut x = 0u8; [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/chip8.rs:105:13 [INFO] [stdout] | [INFO] [stdout] 105 | let mut y = 0u8; [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/chip8.rs:106:13 [INFO] [stdout] | [INFO] [stdout] 106 | let mut height = 0u8; [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/chip8.rs:107:13 [INFO] [stdout] | [INFO] [stdout] 107 | let mut pixel = 0u8; [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/chip8.rs:119:13 [INFO] [stdout] | [INFO] [stdout] 119 | let mut addr = 0u16; [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/chip8.rs:353:21 [INFO] [stdout] | [INFO] [stdout] 353 | let mut oldbit:bool = false; [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/chip8.rs:438:29 [INFO] [stdout] | [INFO] [stdout] 438 | let mut vx = self.v[x as usize]; [INFO] [stdout] | ----^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `keyboard`, `tinterval`, and `tcount` are never read [INFO] [stdout] --> src/chip8.rs:24:9 [INFO] [stdout] | [INFO] [stdout] 14 | pub struct Chip8 { [INFO] [stdout] | ----- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 24 | pub keyboard: [bool; 16], [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 27 | pub tinterval: i32, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] 28 | pub tcount: i32, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:60:5 [INFO] [stdout] | [INFO] [stdout] 60 | core.load_rom(); [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] 60 | let _ = core.load_rom(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 29 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/chip8.rs:71:13 [INFO] [stdout] | [INFO] [stdout] 71 | let mut f = try!(File::open("roms/programs/Chip8 emulator Logo [Garstyciuks].ch8")); [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: unused variable: `x` [INFO] [stdout] --> src/chip8.rs:104:17 [INFO] [stdout] | [INFO] [stdout] 104 | let mut x = 0u8; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `y` [INFO] [stdout] --> src/chip8.rs:105:17 [INFO] [stdout] | [INFO] [stdout] 105 | let mut y = 0u8; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_y` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `height` [INFO] [stdout] --> src/chip8.rs:106:17 [INFO] [stdout] | [INFO] [stdout] 106 | let mut height = 0u8; [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_height` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `pixel` [INFO] [stdout] --> src/chip8.rs:107:17 [INFO] [stdout] | [INFO] [stdout] 107 | let mut pixel = 0u8; [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_pixel` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `addr` [INFO] [stdout] --> src/chip8.rs:119:17 [INFO] [stdout] | [INFO] [stdout] 119 | let mut addr = 0u16; [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_addr` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `j` is never read [INFO] [stdout] --> src/chip8.rs:351:25 [INFO] [stdout] | [INFO] [stdout] 351 | let mut j = 0u8; [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `newbit` is never read [INFO] [stdout] --> src/chip8.rs:352:25 [INFO] [stdout] | [INFO] [stdout] 352 | let mut newbit:bool = false; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `oldbit` [INFO] [stdout] --> src/chip8.rs:353:25 [INFO] [stdout] | [INFO] [stdout] 353 | let mut oldbit:bool = false; [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_oldbit` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `vx` [INFO] [stdout] --> src/chip8.rs:462:29 [INFO] [stdout] | [INFO] [stdout] 462 | let vx = (self.v[x as usize] & 0x000F) as u16; [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_vx` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/chip8.rs:104:13 [INFO] [stdout] | [INFO] [stdout] 104 | let mut x = 0u8; [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/chip8.rs:105:13 [INFO] [stdout] | [INFO] [stdout] 105 | let mut y = 0u8; [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/chip8.rs:106:13 [INFO] [stdout] | [INFO] [stdout] 106 | let mut height = 0u8; [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/chip8.rs:107:13 [INFO] [stdout] | [INFO] [stdout] 107 | let mut pixel = 0u8; [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/chip8.rs:119:13 [INFO] [stdout] | [INFO] [stdout] 119 | let mut addr = 0u16; [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/chip8.rs:353:21 [INFO] [stdout] | [INFO] [stdout] 353 | let mut oldbit:bool = false; [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/chip8.rs:438:29 [INFO] [stdout] | [INFO] [stdout] 438 | let mut vx = self.v[x as usize]; [INFO] [stdout] | ----^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `keyboard`, `tinterval`, and `tcount` are never read [INFO] [stdout] --> src/chip8.rs:24:9 [INFO] [stdout] | [INFO] [stdout] 14 | pub struct Chip8 { [INFO] [stdout] | ----- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 24 | pub keyboard: [bool; 16], [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 27 | pub tinterval: i32, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] 28 | pub tcount: i32, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:60:5 [INFO] [stdout] | [INFO] [stdout] 60 | core.load_rom(); [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] 60 | let _ = core.load_rom(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 29 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.63s [INFO] running `Command { std: "docker" "inspect" "d0cf2ee52fefe741fe03a51eeab10414d759c199c8251c8582971e1e1e623fae", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d0cf2ee52fefe741fe03a51eeab10414d759c199c8251c8582971e1e1e623fae", kill_on_drop: false }` [INFO] [stdout] d0cf2ee52fefe741fe03a51eeab10414d759c199c8251c8582971e1e1e623fae