[INFO] cloning repository https://github.com/krishnabansal89/Chip8-Rust-Emulator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/krishnabansal89/Chip8-Rust-Emulator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkrishnabansal89%2FChip8-Rust-Emulator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkrishnabansal89%2FChip8-Rust-Emulator'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d2ef69821103658fde8915a0258f57839a9473ec
[INFO] testing krishnabansal89/Chip8-Rust-Emulator against master#d98a5da813da67eb189387b8ccfb73cf481275d8+rustflags=-Copt-level=3 for pr-138759-retry
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkrishnabansal89%2FChip8-Rust-Emulator" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/krishnabansal89/Chip8-Rust-Emulator
[INFO] finished tweaking git repo https://github.com/krishnabansal89/Chip8-Rust-Emulator
[INFO] tweaked toml for git repo https://github.com/krishnabansal89/Chip8-Rust-Emulator written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/krishnabansal89/Chip8-Rust-Emulator on toolchain d98a5da813da67eb189387b8ccfb73cf481275d8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/krishnabansal89/Chip8-Rust-Emulator already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded macroquad_macro v0.1.8
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1a2389bcfd9a806dde09cf8a626d8271343f0e73bdd7d2ffd81499b207864846
[INFO] running `Command { std: "docker" "start" "-a" "1a2389bcfd9a806dde09cf8a626d8271343f0e73bdd7d2ffd81499b207864846", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1a2389bcfd9a806dde09cf8a626d8271343f0e73bdd7d2ffd81499b207864846", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a2389bcfd9a806dde09cf8a626d8271343f0e73bdd7d2ffd81499b207864846", kill_on_drop: false }`
[INFO] [stdout] 1a2389bcfd9a806dde09cf8a626d8271343f0e73bdd7d2ffd81499b207864846
[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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d2a2f406d046ba18bc9970292573cdd0f46dced61ba321e7f19180188fa85f3f
[INFO] running `Command { std: "docker" "start" "-a" "d2a2f406d046ba18bc9970292573cdd0f46dced61ba321e7f19180188fa85f3f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.155
[INFO] [stderr]    Compiling zerocopy v0.7.34
[INFO] [stderr]    Compiling once_cell v1.19.0
[INFO] [stderr]    Compiling miniquad v0.4.2
[INFO] [stderr]    Compiling ttf-parser v0.15.2
[INFO] [stderr]    Compiling bytemuck v1.16.1
[INFO] [stderr]    Compiling glam v0.27.0
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling slotmap v1.0.7
[INFO] [stderr]    Compiling quad-rand v0.2.1
[INFO] [stderr]    Compiling bumpalo v3.16.0
[INFO] [stderr]    Compiling macroquad_macro v0.1.8
[INFO] [stderr]    Compiling flate2 v1.0.30
[INFO] [stderr]    Compiling ahash v0.8.11
[INFO] [stderr]    Compiling png v0.17.13
[INFO] [stderr]    Compiling hashbrown v0.13.2
[INFO] [stderr]    Compiling getrandom v0.2.15
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling fontdue v0.7.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling image v0.24.9
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling macroquad v0.4.8
[INFO] [stderr]    Compiling Rust-Chip-8 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `display::Display`
[INFO] [stdout]  --> src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use display::Display;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/ram.rs:36:13
[INFO] [stdout]    |
[INFO] [stdout] 36 |         for i in 0..0x1ff{
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/cpu.rs:240:21
[INFO] [stdout]     |
[INFO] [stdout] 240 |                     &ram.write_byte(self.i, self.vx[x] / 100);
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 240 |                     let _ = &ram.write_byte(self.i, self.vx[x] / 100);
[INFO] [stdout]     |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/cpu.rs:241:21
[INFO] [stdout]     |
[INFO] [stdout] 241 |                     &ram.write_byte(self.i + 1, (self.vx[x] / 10) % 10);
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 241 |                     let _ = &ram.write_byte(self.i + 1, (self.vx[x] / 10) % 10);
[INFO] [stdout]     |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/cpu.rs:242:21
[INFO] [stdout]     |
[INFO] [stdout] 242 |                     &ram.write_byte(self.i + 2, self.vx[x] % 10);
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 242 |                     let _ = &ram.write_byte(self.i + 2, self.vx[x] % 10);
[INFO] [stdout]     |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/cpu.rs:246:25
[INFO] [stdout]     |
[INFO] [stdout] 246 |                         &ram.write_byte(self.i + i as u16, self.vx[i]);
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 246 |                         let _ = &ram.write_byte(self.i + i as u16, self.vx[i]);
[INFO] [stdout]     |                         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 26.93s
[INFO] running `Command { std: "docker" "inspect" "d2a2f406d046ba18bc9970292573cdd0f46dced61ba321e7f19180188fa85f3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d2a2f406d046ba18bc9970292573cdd0f46dced61ba321e7f19180188fa85f3f", kill_on_drop: false }`
[INFO] [stdout] d2a2f406d046ba18bc9970292573cdd0f46dced61ba321e7f19180188fa85f3f
[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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 775ad91bdc92550a0340ec66cfae2752bad81cd7d3b80243f71552cd5c67803c
[INFO] running `Command { std: "docker" "start" "-a" "775ad91bdc92550a0340ec66cfae2752bad81cd7d3b80243f71552cd5c67803c", kill_on_drop: false }`
[INFO] [stderr]    Compiling Rust-Chip-8 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `display::Display`
[INFO] [stdout]  --> src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use display::Display;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/ram.rs:36:13
[INFO] [stdout]    |
[INFO] [stdout] 36 |         for i in 0..0x1ff{
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/cpu.rs:240:21
[INFO] [stdout]     |
[INFO] [stdout] 240 |                     &ram.write_byte(self.i, self.vx[x] / 100);
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 240 |                     let _ = &ram.write_byte(self.i, self.vx[x] / 100);
[INFO] [stdout]     |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/cpu.rs:241:21
[INFO] [stdout]     |
[INFO] [stdout] 241 |                     &ram.write_byte(self.i + 1, (self.vx[x] / 10) % 10);
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 241 |                     let _ = &ram.write_byte(self.i + 1, (self.vx[x] / 10) % 10);
[INFO] [stdout]     |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/cpu.rs:242:21
[INFO] [stdout]     |
[INFO] [stdout] 242 |                     &ram.write_byte(self.i + 2, self.vx[x] % 10);
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 242 |                     let _ = &ram.write_byte(self.i + 2, self.vx[x] % 10);
[INFO] [stdout]     |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/cpu.rs:246:25
[INFO] [stdout]     |
[INFO] [stdout] 246 |                         &ram.write_byte(self.i + i as u16, self.vx[i]);
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 246 |                         let _ = &ram.write_byte(self.i + i as u16, self.vx[i]);
[INFO] [stdout]     |                         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.44s
[INFO] running `Command { std: "docker" "inspect" "775ad91bdc92550a0340ec66cfae2752bad81cd7d3b80243f71552cd5c67803c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "775ad91bdc92550a0340ec66cfae2752bad81cd7d3b80243f71552cd5c67803c", kill_on_drop: false }`
[INFO] [stdout] 775ad91bdc92550a0340ec66cfae2752bad81cd7d3b80243f71552cd5c67803c
[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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 871a60743a25e4bc92131d5d3827a51dd90c7fb555362c22a82548214086dd9a
[INFO] running `Command { std: "docker" "start" "-a" "871a60743a25e4bc92131d5d3827a51dd90c7fb555362c22a82548214086dd9a", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `display::Display`
[INFO] [stderr]  --> src/main.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use display::Display;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/ram.rs:36:13
[INFO] [stderr]    |
[INFO] [stderr] 36 |         for i in 0..0x1ff{
[INFO] [stderr]    |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]    --> src/cpu.rs:240:21
[INFO] [stderr]     |
[INFO] [stderr] 240 |                     &ram.write_byte(self.i, self.vx[x] / 100);
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 240 |                     let _ = &ram.write_byte(self.i, self.vx[x] / 100);
[INFO] [stderr]     |                     +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]    --> src/cpu.rs:241:21
[INFO] [stderr]     |
[INFO] [stderr] 241 |                     &ram.write_byte(self.i + 1, (self.vx[x] / 10) % 10);
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]     |
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 241 |                     let _ = &ram.write_byte(self.i + 1, (self.vx[x] / 10) % 10);
[INFO] [stderr]     |                     +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]    --> src/cpu.rs:242:21
[INFO] [stderr]     |
[INFO] [stderr] 242 |                     &ram.write_byte(self.i + 2, self.vx[x] % 10);
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]     |
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 242 |                     let _ = &ram.write_byte(self.i + 2, self.vx[x] % 10);
[INFO] [stderr]     |                     +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]    --> src/cpu.rs:246:25
[INFO] [stderr]     |
[INFO] [stderr] 246 |                         &ram.write_byte(self.i + i as u16, self.vx[i]);
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]     |
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 246 |                         let _ = &ram.write_byte(self.i + i as u16, self.vx[i]);
[INFO] [stderr]     |                         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `Rust-Chip-8` (bin "Rust-Chip-8" test) generated 6 warnings (run `cargo fix --bin "Rust-Chip-8" --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/Rust_Chip_8-f2d25c93e6b006dc)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "871a60743a25e4bc92131d5d3827a51dd90c7fb555362c22a82548214086dd9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "871a60743a25e4bc92131d5d3827a51dd90c7fb555362c22a82548214086dd9a", kill_on_drop: false }`
[INFO] [stdout] 871a60743a25e4bc92131d5d3827a51dd90c7fb555362c22a82548214086dd9a