[INFO] cloning repository https://github.com/grantlindberg4/chip8-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/grantlindberg4/chip8-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgrantlindberg4%2Fchip8-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgrantlindberg4%2Fchip8-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c0f0ece21f7950522faaf00b0d3be804df2e2333
[INFO] testing grantlindberg4/chip8-rust against 1.95.0 for beta-1.96-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgrantlindberg4%2Fchip8-rust" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/grantlindberg4/chip8-rust
[INFO] finished tweaking git repo https://github.com/grantlindberg4/chip8-rust
[INFO] tweaked toml for git repo https://github.com/grantlindberg4/chip8-rust written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/grantlindberg4/chip8-rust on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/grantlindberg4/chip8-rust 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" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rand_core v0.2.0
[INFO] [stderr]   Downloaded cfg-if v0.1.4
[INFO] [stderr]   Downloaded bitflags v1.0.3
[INFO] [stderr]   Downloaded num-iter v0.1.37
[INFO] [stderr]   Downloaded num-traits v0.2.5
[INFO] [stderr]   Downloaded sdl2 v0.31.0
[INFO] [stderr]   Downloaded rand v0.5.0
[INFO] [stderr]   Downloaded libc v0.2.42
[INFO] [stderr]   Downloaded sdl2-sys v0.31.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1127d1c924504ec1647d9e2971fb065d2d9717b6d213dc6f4c9e4ddd1c249d9f
[INFO] running `Command { std: "docker" "start" "-a" "1127d1c924504ec1647d9e2971fb065d2d9717b6d213dc6f4c9e4ddd1c249d9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1127d1c924504ec1647d9e2971fb065d2d9717b6d213dc6f4c9e4ddd1c249d9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1127d1c924504ec1647d9e2971fb065d2d9717b6d213dc6f4c9e4ddd1c249d9f", kill_on_drop: false }`
[INFO] [stdout] 1127d1c924504ec1647d9e2971fb065d2d9717b6d213dc6f4c9e4ddd1c249d9f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 33c56a21de3559780e36010a4ef3d17268a4c900ec45a422420ac847e7d31d07
[INFO] running `Command { std: "docker" "start" "-a" "33c56a21de3559780e36010a4ef3d17268a4c900ec45a422420ac847e7d31d07", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]    Compiling num-traits v0.2.5
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling libc v0.2.42
[INFO] [stderr]    Compiling num-iter v0.1.37
[INFO] [stderr]    Compiling cfg-if v0.1.4
[INFO] [stderr]    Compiling rand_core v0.2.0
[INFO] [stderr]    Compiling bitflags v0.7.0
[INFO] [stderr]    Compiling sdl2-sys v0.31.0
[INFO] [stderr]    Compiling rand v0.4.2
[INFO] [stderr]    Compiling rand v0.5.0
[INFO] [stderr]    Compiling rand v0.3.22
[INFO] [stderr]    Compiling num v0.1.42
[INFO] [stderr]    Compiling sdl2 v0.31.0
[INFO] [stderr]    Compiling chip8_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/cpu.rs:178:19
[INFO] [stdout]     |
[INFO] [stdout] 178 |             0x0000...0x0FFF => Ok(Opcode::CallRCAProgram(opcode & 0x0FFF)),
[INFO] [stdout]     |                   ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/cpu.rs:179:19
[INFO] [stdout]     |
[INFO] [stdout] 179 |             0x1000...0x1FFF => Ok(Opcode::JumpToAddr(opcode & 0x0FFF)),
[INFO] [stdout]     |                   ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/cpu.rs:180:19
[INFO] [stdout]     |
[INFO] [stdout] 180 |             0x2000...0x2FFF => Ok(Opcode::CallSubroutine(opcode & 0x0FFF)),
[INFO] [stdout]     |                   ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/cpu.rs:181:19
[INFO] [stdout]     |
[INFO] [stdout] 181 |             0x3000...0x3FFF => {
[INFO] [stdout]     |                   ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/cpu.rs:187:19
[INFO] [stdout]     |
[INFO] [stdout] 187 |             0x4000...0x4FFF => {
[INFO] [stdout]     |                   ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/cpu.rs:193:19
[INFO] [stdout]     |
[INFO] [stdout] 193 |             0x5000...0x5FFF => {
[INFO] [stdout]     |                   ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/cpu.rs:199:19
[INFO] [stdout]     |
[INFO] [stdout] 199 |             0x6000...0x6FFF => {
[INFO] [stdout]     |                   ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/cpu.rs:205:19
[INFO] [stdout]     |
[INFO] [stdout] 205 |             0x7000...0x7FFF => {
[INFO] [stdout]     |                   ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/cpu.rs:211:19
[INFO] [stdout]     |
[INFO] [stdout] 211 |             0x8000...0x8FFF => {
[INFO] [stdout]     |                   ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/cpu.rs:270:19
[INFO] [stdout]     |
[INFO] [stdout] 270 |             0x9000...0x9FFF => {
[INFO] [stdout]     |                   ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/cpu.rs:276:19
[INFO] [stdout]     |
[INFO] [stdout] 276 |             0xA000...0xAFFF => Ok(Opcode::SetIndexRegister(opcode & 0x0FFF)),
[INFO] [stdout]     |                   ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/cpu.rs:277:19
[INFO] [stdout]     |
[INFO] [stdout] 277 |             0xB000...0xBFFF => Ok(Opcode::SetProgramCounter(opcode & 0x0FFF)),
[INFO] [stdout]     |                   ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/cpu.rs:278:19
[INFO] [stdout]     |
[INFO] [stdout] 278 |             0xC000...0xCFFF => {
[INFO] [stdout]     |                   ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/cpu.rs:284:19
[INFO] [stdout]     |
[INFO] [stdout] 284 |             0xD000...0xDFFF => {
[INFO] [stdout]     |                   ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/cpu.rs:291:19
[INFO] [stdout]     |
[INFO] [stdout] 291 |             0xE000...0xEFFF => {
[INFO] [stdout]     |                   ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/cpu.rs:302:19
[INFO] [stdout]     |
[INFO] [stdout] 302 |             0xF000...0xFFFF => {
[INFO] [stdout]     |                   ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/cpu.rs:336:13
[INFO] [stdout]     |
[INFO] [stdout] 336 |             _ => Err(CpuError::IllegalInstruction(opcode)),
[INFO] [stdout]     |             ^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]    --> src/cpu.rs:336:13
[INFO] [stdout]     |
[INFO] [stdout] 176 |             0x00E0 => Ok(Opcode::ClearDisplay),
[INFO] [stdout]     |             ------ matches some of the same values
[INFO] [stdout] 177 |             0x00EE => Ok(Opcode::ReturnFromSubroutine),
[INFO] [stdout]     |             ------ matches some of the same values
[INFO] [stdout] 178 |             0x0000...0x0FFF => Ok(Opcode::CallRCAProgram(opcode & 0x0FFF)),
[INFO] [stdout]     |             --------------- matches some of the same values
[INFO] [stdout] 179 |             0x1000...0x1FFF => Ok(Opcode::JumpToAddr(opcode & 0x0FFF)),
[INFO] [stdout]     |             --------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 336 |             _ => Err(CpuError::IllegalInstruction(opcode)),
[INFO] [stdout]     |             ^ ...and 14 other patterns collectively make this unreachable
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.35s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: bitflags v0.7.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "33c56a21de3559780e36010a4ef3d17268a4c900ec45a422420ac847e7d31d07", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33c56a21de3559780e36010a4ef3d17268a4c900ec45a422420ac847e7d31d07", kill_on_drop: false }`
[INFO] [stdout] 33c56a21de3559780e36010a4ef3d17268a4c900ec45a422420ac847e7d31d07
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ffb243ef6a1636aa5dbcb36de9da2e9a766c48ad19c45fe56003e75ce6151fe2
[INFO] running `Command { std: "docker" "start" "-a" "ffb243ef6a1636aa5dbcb36de9da2e9a766c48ad19c45fe56003e75ce6151fe2", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]    Compiling chip8_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/cpu.rs:178:19
[INFO] [stdout]     |
[INFO] [stdout] 178 |             0x0000...0x0FFF => Ok(Opcode::CallRCAProgram(opcode & 0x0FFF)),
[INFO] [stdout]     |                   ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/cpu.rs:179:19
[INFO] [stdout]     |
[INFO] [stdout] 179 |             0x1000...0x1FFF => Ok(Opcode::JumpToAddr(opcode & 0x0FFF)),
[INFO] [stdout]     |                   ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/cpu.rs:180:19
[INFO] [stdout]     |
[INFO] [stdout] 180 |             0x2000...0x2FFF => Ok(Opcode::CallSubroutine(opcode & 0x0FFF)),
[INFO] [stdout]     |                   ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/cpu.rs:181:19
[INFO] [stdout]     |
[INFO] [stdout] 181 |             0x3000...0x3FFF => {
[INFO] [stdout]     |                   ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/cpu.rs:187:19
[INFO] [stdout]     |
[INFO] [stdout] 187 |             0x4000...0x4FFF => {
[INFO] [stdout]     |                   ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/cpu.rs:193:19
[INFO] [stdout]     |
[INFO] [stdout] 193 |             0x5000...0x5FFF => {
[INFO] [stdout]     |                   ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/cpu.rs:199:19
[INFO] [stdout]     |
[INFO] [stdout] 199 |             0x6000...0x6FFF => {
[INFO] [stdout]     |                   ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/cpu.rs:205:19
[INFO] [stdout]     |
[INFO] [stdout] 205 |             0x7000...0x7FFF => {
[INFO] [stdout]     |                   ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/cpu.rs:211:19
[INFO] [stdout]     |
[INFO] [stdout] 211 |             0x8000...0x8FFF => {
[INFO] [stdout]     |                   ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/cpu.rs:270:19
[INFO] [stdout]     |
[INFO] [stdout] 270 |             0x9000...0x9FFF => {
[INFO] [stdout]     |                   ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/cpu.rs:276:19
[INFO] [stdout]     |
[INFO] [stdout] 276 |             0xA000...0xAFFF => Ok(Opcode::SetIndexRegister(opcode & 0x0FFF)),
[INFO] [stdout]     |                   ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/cpu.rs:277:19
[INFO] [stdout]     |
[INFO] [stdout] 277 |             0xB000...0xBFFF => Ok(Opcode::SetProgramCounter(opcode & 0x0FFF)),
[INFO] [stdout]     |                   ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/cpu.rs:278:19
[INFO] [stdout]     |
[INFO] [stdout] 278 |             0xC000...0xCFFF => {
[INFO] [stdout]     |                   ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/cpu.rs:284:19
[INFO] [stdout]     |
[INFO] [stdout] 284 |             0xD000...0xDFFF => {
[INFO] [stdout]     |                   ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/cpu.rs:291:19
[INFO] [stdout]     |
[INFO] [stdout] 291 |             0xE000...0xEFFF => {
[INFO] [stdout]     |                   ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/cpu.rs:302:19
[INFO] [stdout]     |
[INFO] [stdout] 302 |             0xF000...0xFFFF => {
[INFO] [stdout]     |                   ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/cpu.rs:336:13
[INFO] [stdout]     |
[INFO] [stdout] 336 |             _ => Err(CpuError::IllegalInstruction(opcode)),
[INFO] [stdout]     |             ^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]    --> src/cpu.rs:336:13
[INFO] [stdout]     |
[INFO] [stdout] 176 |             0x00E0 => Ok(Opcode::ClearDisplay),
[INFO] [stdout]     |             ------ matches some of the same values
[INFO] [stdout] 177 |             0x00EE => Ok(Opcode::ReturnFromSubroutine),
[INFO] [stdout]     |             ------ matches some of the same values
[INFO] [stdout] 178 |             0x0000...0x0FFF => Ok(Opcode::CallRCAProgram(opcode & 0x0FFF)),
[INFO] [stdout]     |             --------------- matches some of the same values
[INFO] [stdout] 179 |             0x1000...0x1FFF => Ok(Opcode::JumpToAddr(opcode & 0x0FFF)),
[INFO] [stdout]     |             --------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 336 |             _ => Err(CpuError::IllegalInstruction(opcode)),
[INFO] [stdout]     |             ^ ...and 14 other patterns collectively make this unreachable
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.19s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: bitflags v0.7.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "ffb243ef6a1636aa5dbcb36de9da2e9a766c48ad19c45fe56003e75ce6151fe2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ffb243ef6a1636aa5dbcb36de9da2e9a766c48ad19c45fe56003e75ce6151fe2", kill_on_drop: false }`
[INFO] [stdout] ffb243ef6a1636aa5dbcb36de9da2e9a766c48ad19c45fe56003e75ce6151fe2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6b9eb8ab0987791c9e71f412180c0055e414ac82f9ee6c466d7161becc3c06ca
[INFO] running `Command { std: "docker" "start" "-a" "6b9eb8ab0987791c9e71f412180c0055e414ac82f9ee6c466d7161becc3c06ca", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/cpu.rs:178:19
[INFO] [stderr]     |
[INFO] [stderr] 178 |             0x0000...0x0FFF => Ok(Opcode::CallRCAProgram(opcode & 0x0FFF)),
[INFO] [stderr]     |                   ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/cpu.rs:179:19
[INFO] [stderr]     |
[INFO] [stderr] 179 |             0x1000...0x1FFF => Ok(Opcode::JumpToAddr(opcode & 0x0FFF)),
[INFO] [stderr]     |                   ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/cpu.rs:180:19
[INFO] [stderr]     |
[INFO] [stderr] 180 |             0x2000...0x2FFF => Ok(Opcode::CallSubroutine(opcode & 0x0FFF)),
[INFO] [stderr]     |                   ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/cpu.rs:181:19
[INFO] [stderr]     |
[INFO] [stderr] 181 |             0x3000...0x3FFF => {
[INFO] [stderr]     |                   ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/cpu.rs:187:19
[INFO] [stderr]     |
[INFO] [stderr] 187 |             0x4000...0x4FFF => {
[INFO] [stderr]     |                   ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/cpu.rs:193:19
[INFO] [stderr]     |
[INFO] [stderr] 193 |             0x5000...0x5FFF => {
[INFO] [stderr]     |                   ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/cpu.rs:199:19
[INFO] [stderr]     |
[INFO] [stderr] 199 |             0x6000...0x6FFF => {
[INFO] [stderr]     |                   ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/cpu.rs:205:19
[INFO] [stderr]     |
[INFO] [stderr] 205 |             0x7000...0x7FFF => {
[INFO] [stderr]     |                   ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/cpu.rs:211:19
[INFO] [stderr]     |
[INFO] [stderr] 211 |             0x8000...0x8FFF => {
[INFO] [stderr]     |                   ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/cpu.rs:270:19
[INFO] [stderr]     |
[INFO] [stderr] 270 |             0x9000...0x9FFF => {
[INFO] [stderr]     |                   ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/cpu.rs:276:19
[INFO] [stderr]     |
[INFO] [stderr] 276 |             0xA000...0xAFFF => Ok(Opcode::SetIndexRegister(opcode & 0x0FFF)),
[INFO] [stderr]     |                   ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/cpu.rs:277:19
[INFO] [stderr]     |
[INFO] [stderr] 277 |             0xB000...0xBFFF => Ok(Opcode::SetProgramCounter(opcode & 0x0FFF)),
[INFO] [stderr]     |                   ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/cpu.rs:278:19
[INFO] [stderr]     |
[INFO] [stderr] 278 |             0xC000...0xCFFF => {
[INFO] [stderr]     |                   ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/cpu.rs:284:19
[INFO] [stderr]     |
[INFO] [stderr] 284 |             0xD000...0xDFFF => {
[INFO] [stderr]     |                   ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/cpu.rs:291:19
[INFO] [stderr]     |
[INFO] [stderr] 291 |             0xE000...0xEFFF => {
[INFO] [stderr]     |                   ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/cpu.rs:302:19
[INFO] [stderr]     |
[INFO] [stderr] 302 |             0xF000...0xFFFF => {
[INFO] [stderr]     |                   ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/cpu.rs:336:13
[INFO] [stderr]     |
[INFO] [stderr] 336 |             _ => Err(CpuError::IllegalInstruction(opcode)),
[INFO] [stderr]     |             ^ no value can reach this
[INFO] [stderr]     |
[INFO] [stderr] note: multiple earlier patterns match some of the same values
[INFO] [stderr]    --> src/cpu.rs:336:13
[INFO] [stderr]     |
[INFO] [stderr] 176 |             0x00E0 => Ok(Opcode::ClearDisplay),
[INFO] [stderr]     |             ------ matches some of the same values
[INFO] [stderr] 177 |             0x00EE => Ok(Opcode::ReturnFromSubroutine),
[INFO] [stderr]     |             ------ matches some of the same values
[INFO] [stderr] 178 |             0x0000...0x0FFF => Ok(Opcode::CallRCAProgram(opcode & 0x0FFF)),
[INFO] [stderr]     |             --------------- matches some of the same values
[INFO] [stderr] 179 |             0x1000...0x1FFF => Ok(Opcode::JumpToAddr(opcode & 0x0FFF)),
[INFO] [stderr]     |             --------------- matches some of the same values
[INFO] [stderr] ...
[INFO] [stderr] 336 |             _ => Err(CpuError::IllegalInstruction(opcode)),
[INFO] [stderr]     |             ^ ...and 14 other patterns collectively make this unreachable
[INFO] [stderr]     = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `chip8_rust` (bin "chip8_rust" test) generated 17 warnings (run `cargo fix --bin "chip8_rust" -p chip8_rust --tests` to apply 16 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: bitflags v0.7.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/chip8_rust-4df34b9721078995)
[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" "6b9eb8ab0987791c9e71f412180c0055e414ac82f9ee6c466d7161becc3c06ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b9eb8ab0987791c9e71f412180c0055e414ac82f9ee6c466d7161becc3c06ca", kill_on_drop: false }`
[INFO] [stdout] 6b9eb8ab0987791c9e71f412180c0055e414ac82f9ee6c466d7161becc3c06ca
