[INFO] updating cached repository https://github.com/linde12/chip8
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] cbff4529fb7e76758a14ae835e8243a2aa01e91b
[INFO] testing linde12/chip8 against 1.44.0 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flinde12%2Fchip8" "/workspace/builds/worker-7/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/linde12/chip8 on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/linde12/chip8
[INFO] finished tweaking git repo https://github.com/linde12/chip8
[INFO] tweaked toml for git repo https://github.com/linde12/chip8 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/linde12/chip8 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c56c2c52cb4f447411a020217652596be898b7f654e477a5dd8ef46655230632
[INFO] running `"docker" "start" "-a" "c56c2c52cb4f447411a020217652596be898b7f654e477a5dd8ef46655230632"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling chip88 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `op`
[INFO] [stderr]    --> src/main.rs:136:13
[INFO] [stderr]     |
[INFO] [stderr] 136 |             op if high_nib == 0x1 => Ok(Op::JP(Operand::Addr(0xFFFF))),
[INFO] [stderr]     |             ^^ help: if this is intentional, prefix it with an underscore: `_op`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `op`
[INFO] [stderr]    --> src/main.rs:137:13
[INFO] [stderr]     |
[INFO] [stderr] 137 |             op if high_nib == 0x2 => Ok(Op::CALL(Operand::Addr(0xFFFF))),
[INFO] [stderr]     |             ^^ help: if this is intentional, prefix it with an underscore: `_op`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `op`
[INFO] [stderr]    --> src/main.rs:144:13
[INFO] [stderr]     |
[INFO] [stderr] 144 |             op if high_nib == 0x4 => Ok(Op::SNE(
[INFO] [stderr]     |             ^^ help: if this is intentional, prefix it with an underscore: `_op`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `op`
[INFO] [stderr]    --> src/main.rs:148:13
[INFO] [stderr]     |
[INFO] [stderr] 148 |             op if high_nib == 0x5 => Ok(Op::SE(
[INFO] [stderr]     |             ^^ help: if this is intentional, prefix it with an underscore: `_op`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `op`
[INFO] [stderr]    --> src/main.rs:152:13
[INFO] [stderr]     |
[INFO] [stderr] 152 |             op if high_nib == 0x6 => Ok(Op::LD(
[INFO] [stderr]     |             ^^ help: if this is intentional, prefix it with an underscore: `_op`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `op`
[INFO] [stderr]    --> src/main.rs:156:13
[INFO] [stderr]     |
[INFO] [stderr] 156 |             op if high_nib == 0x7 => Ok(Op::ADD(
[INFO] [stderr]     |             ^^ help: if this is intentional, prefix it with an underscore: `_op`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `op`
[INFO] [stderr]    --> src/main.rs:193:13
[INFO] [stderr]     |
[INFO] [stderr] 193 |             op if high_nib == 0x9 => Ok(Op::SNE(
[INFO] [stderr]     |             ^^ help: if this is intentional, prefix it with an underscore: `_op`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `op`
[INFO] [stderr]    --> src/main.rs:197:13
[INFO] [stderr]     |
[INFO] [stderr] 197 |             op if high_nib == 0xA => Ok(Op::LD(
[INFO] [stderr]     |             ^^ help: if this is intentional, prefix it with an underscore: `_op`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `op`
[INFO] [stderr]    --> src/main.rs:201:13
[INFO] [stderr]     |
[INFO] [stderr] 201 |             op if high_nib == 0xB => Ok(Op::JP(Operand::Addr(0xFFFA))),
[INFO] [stderr]     |             ^^ help: if this is intentional, prefix it with an underscore: `_op`
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `CLS`
[INFO] [stderr]   --> src/main.rs:40:5
[INFO] [stderr]    |
[INFO] [stderr] 40 |     CLS,         // Clear
[INFO] [stderr]    |     ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `RET`
[INFO] [stderr]   --> src/main.rs:41:5
[INFO] [stderr]    |
[INFO] [stderr] 41 |     RET,         // Return
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `RND`
[INFO] [stderr]   --> src/main.rs:56:5
[INFO] [stderr]    |
[INFO] [stderr] 56 |     RND(Operand, Operand),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `DRW`
[INFO] [stderr]   --> src/main.rs:58:5
[INFO] [stderr]    |
[INFO] [stderr] 58 |     DRW(Operand, Operand, Operand),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `SKP`
[INFO] [stderr]   --> src/main.rs:59:5
[INFO] [stderr]    |
[INFO] [stderr] 59 |     SKP(Operand),
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `SKNP`
[INFO] [stderr]   --> src/main.rs:60:5
[INFO] [stderr]    |
[INFO] [stderr] 60 |     SKNP(Operand),
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `read_byte`
[INFO] [stderr]   --> src/main.rs:72:5
[INFO] [stderr]    |
[INFO] [stderr] 72 |     fn read_byte(&self, index: usize) -> Result<u8, ()> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `reg8`
[INFO] [stderr]    --> src/main.rs:100:5
[INFO] [stderr]     |
[INFO] [stderr] 100 |     reg8: HashMap<u8, u8>,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: literal out of range for u8
[INFO] [stderr]    --> src/main.rs:140:76
[INFO] [stderr]     |
[INFO] [stderr] 140 |                     return Ok(Op::SE(Operand::Register(reg), Operand::Byte(0xFFFF)));
[INFO] [stderr]     |                                                                            ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(overflowing_literals)]` on by default
[INFO] [stderr]     = note: the literal `0xFFFF` (decimal `65535`) does not fit into the type `u8` and will become `255u8`
[INFO] [stderr]     = help: consider using `u16` instead
[INFO] [stderr] 
[INFO] [stderr] warning: literal out of range for u8
[INFO] [stderr]    --> src/main.rs:146:31
[INFO] [stderr]     |
[INFO] [stderr] 146 |                 Operand::Byte(0xFFFF),
[INFO] [stderr]     |                               ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: the literal `0xFFFF` (decimal `65535`) does not fit into the type `u8` and will become `255u8`
[INFO] [stderr]     = help: consider using `u16` instead
[INFO] [stderr] 
[INFO] [stderr] warning: literal out of range for u8
[INFO] [stderr]    --> src/main.rs:158:31
[INFO] [stderr]     |
[INFO] [stderr] 158 |                 Operand::Byte(0xFFFF),
[INFO] [stderr]     |                               ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: the literal `0xFFFF` (decimal `65535`) does not fit into the type `u8` and will become `255u8`
[INFO] [stderr]     = help: consider using `u16` instead
[INFO] [stderr] 
[INFO] [stderr] warning: 20 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.26s
[INFO] running `"docker" "inspect" "c56c2c52cb4f447411a020217652596be898b7f654e477a5dd8ef46655230632"`
[INFO] running `"docker" "rm" "-f" "c56c2c52cb4f447411a020217652596be898b7f654e477a5dd8ef46655230632"`
[INFO] [stdout] c56c2c52cb4f447411a020217652596be898b7f654e477a5dd8ef46655230632
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 50b331a292c74681bfc26b5decee78c88c9ef437378714205de8e8ea6243882b
[INFO] running `"docker" "start" "-a" "50b331a292c74681bfc26b5decee78c88c9ef437378714205de8e8ea6243882b"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling chip88 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `op`
[INFO] [stderr]    --> src/main.rs:136:13
[INFO] [stderr]     |
[INFO] [stderr] 136 |             op if high_nib == 0x1 => Ok(Op::JP(Operand::Addr(0xFFFF))),
[INFO] [stderr]     |             ^^ help: if this is intentional, prefix it with an underscore: `_op`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `op`
[INFO] [stderr]    --> src/main.rs:137:13
[INFO] [stderr]     |
[INFO] [stderr] 137 |             op if high_nib == 0x2 => Ok(Op::CALL(Operand::Addr(0xFFFF))),
[INFO] [stderr]     |             ^^ help: if this is intentional, prefix it with an underscore: `_op`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `op`
[INFO] [stderr]    --> src/main.rs:144:13
[INFO] [stderr]     |
[INFO] [stderr] 144 |             op if high_nib == 0x4 => Ok(Op::SNE(
[INFO] [stderr]     |             ^^ help: if this is intentional, prefix it with an underscore: `_op`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `op`
[INFO] [stderr]    --> src/main.rs:148:13
[INFO] [stderr]     |
[INFO] [stderr] 148 |             op if high_nib == 0x5 => Ok(Op::SE(
[INFO] [stderr]     |             ^^ help: if this is intentional, prefix it with an underscore: `_op`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `op`
[INFO] [stderr]    --> src/main.rs:152:13
[INFO] [stderr]     |
[INFO] [stderr] 152 |             op if high_nib == 0x6 => Ok(Op::LD(
[INFO] [stderr]     |             ^^ help: if this is intentional, prefix it with an underscore: `_op`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `op`
[INFO] [stderr]    --> src/main.rs:156:13
[INFO] [stderr]     |
[INFO] [stderr] 156 |             op if high_nib == 0x7 => Ok(Op::ADD(
[INFO] [stderr]     |             ^^ help: if this is intentional, prefix it with an underscore: `_op`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `op`
[INFO] [stderr]    --> src/main.rs:193:13
[INFO] [stderr]     |
[INFO] [stderr] 193 |             op if high_nib == 0x9 => Ok(Op::SNE(
[INFO] [stderr]     |             ^^ help: if this is intentional, prefix it with an underscore: `_op`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `op`
[INFO] [stderr]    --> src/main.rs:197:13
[INFO] [stderr]     |
[INFO] [stderr] 197 |             op if high_nib == 0xA => Ok(Op::LD(
[INFO] [stderr]     |             ^^ help: if this is intentional, prefix it with an underscore: `_op`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `op`
[INFO] [stderr]    --> src/main.rs:201:13
[INFO] [stderr]     |
[INFO] [stderr] 201 |             op if high_nib == 0xB => Ok(Op::JP(Operand::Addr(0xFFFA))),
[INFO] [stderr]     |             ^^ help: if this is intentional, prefix it with an underscore: `_op`
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `CLS`
[INFO] [stderr]   --> src/main.rs:40:5
[INFO] [stderr]    |
[INFO] [stderr] 40 |     CLS,         // Clear
[INFO] [stderr]    |     ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `RET`
[INFO] [stderr]   --> src/main.rs:41:5
[INFO] [stderr]    |
[INFO] [stderr] 41 |     RET,         // Return
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `RND`
[INFO] [stderr]   --> src/main.rs:56:5
[INFO] [stderr]    |
[INFO] [stderr] 56 |     RND(Operand, Operand),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `DRW`
[INFO] [stderr]   --> src/main.rs:58:5
[INFO] [stderr]    |
[INFO] [stderr] 58 |     DRW(Operand, Operand, Operand),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `SKP`
[INFO] [stderr]   --> src/main.rs:59:5
[INFO] [stderr]    |
[INFO] [stderr] 59 |     SKP(Operand),
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `SKNP`
[INFO] [stderr]   --> src/main.rs:60:5
[INFO] [stderr]    |
[INFO] [stderr] 60 |     SKNP(Operand),
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `read_byte`
[INFO] [stderr]   --> src/main.rs:72:5
[INFO] [stderr]    |
[INFO] [stderr] 72 |     fn read_byte(&self, index: usize) -> Result<u8, ()> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `reg8`
[INFO] [stderr]    --> src/main.rs:100:5
[INFO] [stderr]     |
[INFO] [stderr] 100 |     reg8: HashMap<u8, u8>,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: literal out of range for u8
[INFO] [stderr]    --> src/main.rs:140:76
[INFO] [stderr]     |
[INFO] [stderr] 140 |                     return Ok(Op::SE(Operand::Register(reg), Operand::Byte(0xFFFF)));
[INFO] [stderr]     |                                                                            ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(overflowing_literals)]` on by default
[INFO] [stderr]     = note: the literal `0xFFFF` (decimal `65535`) does not fit into the type `u8` and will become `255u8`
[INFO] [stderr]     = help: consider using `u16` instead
[INFO] [stderr] 
[INFO] [stderr] warning: literal out of range for u8
[INFO] [stderr]    --> src/main.rs:146:31
[INFO] [stderr]     |
[INFO] [stderr] 146 |                 Operand::Byte(0xFFFF),
[INFO] [stderr]     |                               ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: the literal `0xFFFF` (decimal `65535`) does not fit into the type `u8` and will become `255u8`
[INFO] [stderr]     = help: consider using `u16` instead
[INFO] [stderr] 
[INFO] [stderr] warning: literal out of range for u8
[INFO] [stderr]    --> src/main.rs:158:31
[INFO] [stderr]     |
[INFO] [stderr] 158 |                 Operand::Byte(0xFFFF),
[INFO] [stderr]     |                               ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: the literal `0xFFFF` (decimal `65535`) does not fit into the type `u8` and will become `255u8`
[INFO] [stderr]     = help: consider using `u16` instead
[INFO] [stderr] 
[INFO] [stderr] warning: 20 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.69s
[INFO] running `"docker" "inspect" "50b331a292c74681bfc26b5decee78c88c9ef437378714205de8e8ea6243882b"`
[INFO] running `"docker" "rm" "-f" "50b331a292c74681bfc26b5decee78c88c9ef437378714205de8e8ea6243882b"`
[INFO] [stdout] 50b331a292c74681bfc26b5decee78c88c9ef437378714205de8e8ea6243882b
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "test" "--frozen"`
[INFO] [stdout] 7ac31f702f524f5ec7f8c4a78764b4768e5f9eadccd2bf3259b54aa42a09884e
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "7ac31f702f524f5ec7f8c4a78764b4768e5f9eadccd2bf3259b54aa42a09884e"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: unused variable: `op`
[INFO] [stderr]    --> src/main.rs:136:13
[INFO] [stderr]     |
[INFO] [stderr] 136 |             op if high_nib == 0x1 => Ok(Op::JP(Operand::Addr(0xFFFF))),
[INFO] [stderr]     |             ^^ help: if this is intentional, prefix it with an underscore: `_op`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `op`
[INFO] [stderr]    --> src/main.rs:137:13
[INFO] [stderr]     |
[INFO] [stderr] 137 |             op if high_nib == 0x2 => Ok(Op::CALL(Operand::Addr(0xFFFF))),
[INFO] [stderr]     |             ^^ help: if this is intentional, prefix it with an underscore: `_op`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `op`
[INFO] [stderr]    --> src/main.rs:144:13
[INFO] [stderr]     |
[INFO] [stderr] 144 |             op if high_nib == 0x4 => Ok(Op::SNE(
[INFO] [stderr]     |             ^^ help: if this is intentional, prefix it with an underscore: `_op`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `op`
[INFO] [stderr]    --> src/main.rs:148:13
[INFO] [stderr]     |
[INFO] [stderr] 148 |             op if high_nib == 0x5 => Ok(Op::SE(
[INFO] [stderr]     |             ^^ help: if this is intentional, prefix it with an underscore: `_op`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `op`
[INFO] [stderr]    --> src/main.rs:152:13
[INFO] [stderr]     |
[INFO] [stderr] 152 |             op if high_nib == 0x6 => Ok(Op::LD(
[INFO] [stderr]     |             ^^ help: if this is intentional, prefix it with an underscore: `_op`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `op`
[INFO] [stderr]    --> src/main.rs:156:13
[INFO] [stderr]     |
[INFO] [stderr] 156 |             op if high_nib == 0x7 => Ok(Op::ADD(
[INFO] [stderr]     |             ^^ help: if this is intentional, prefix it with an underscore: `_op`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `op`
[INFO] [stderr]    --> src/main.rs:193:13
[INFO] [stderr]     |
[INFO] [stderr] 193 |             op if high_nib == 0x9 => Ok(Op::SNE(
[INFO] [stderr]     |             ^^ help: if this is intentional, prefix it with an underscore: `_op`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `op`
[INFO] [stderr]    --> src/main.rs:197:13
[INFO] [stderr]     |
[INFO] [stderr] 197 |             op if high_nib == 0xA => Ok(Op::LD(
[INFO] [stderr]     |             ^^ help: if this is intentional, prefix it with an underscore: `_op`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `op`
[INFO] [stderr]    --> src/main.rs:201:13
[INFO] [stderr]     |
[INFO] [stderr] 201 |             op if high_nib == 0xB => Ok(Op::JP(Operand::Addr(0xFFFA))),
[INFO] [stderr]     |             ^^ help: if this is intentional, prefix it with an underscore: `_op`
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `CLS`
[INFO] [stderr]   --> src/main.rs:40:5
[INFO] [stderr]    |
[INFO] [stderr] 40 |     CLS,         // Clear
[INFO] [stderr]    |     ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `RET`
[INFO] [stderr]   --> src/main.rs:41:5
[INFO] [stderr]    |
[INFO] [stderr] 41 |     RET,         // Return
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `RND`
[INFO] [stderr]   --> src/main.rs:56:5
[INFO] [stderr]    |
[INFO] [stderr] 56 |     RND(Operand, Operand),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `DRW`
[INFO] [stderr]   --> src/main.rs:58:5
[INFO] [stderr]    |
[INFO] [stderr] 58 |     DRW(Operand, Operand, Operand),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `SKP`
[INFO] [stderr]   --> src/main.rs:59:5
[INFO] [stderr]    |
[INFO] [stderr] 59 |     SKP(Operand),
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `SKNP`
[INFO] [stderr]   --> src/main.rs:60:5
[INFO] [stderr]    |
[INFO] [stderr] 60 |     SKNP(Operand),
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `read_byte`
[INFO] [stderr]   --> src/main.rs:72:5
[INFO] [stderr]    |
[INFO] [stderr] 72 |     fn read_byte(&self, index: usize) -> Result<u8, ()> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `reg8`
[INFO] [stderr]    --> src/main.rs:100:5
[INFO] [stderr]     |
[INFO] [stderr] 100 |     reg8: HashMap<u8, u8>,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: literal out of range for u8
[INFO] [stderr]    --> src/main.rs:140:76
[INFO] [stderr]     |
[INFO] [stderr] 140 |                     return Ok(Op::SE(Operand::Register(reg), Operand::Byte(0xFFFF)));
[INFO] [stderr]     |                                                                            ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(overflowing_literals)]` on by default
[INFO] [stderr]     = note: the literal `0xFFFF` (decimal `65535`) does not fit into the type `u8` and will become `255u8`
[INFO] [stderr]     = help: consider using `u16` instead
[INFO] [stderr] 
[INFO] [stderr] warning: literal out of range for u8
[INFO] [stderr]    --> src/main.rs:146:31
[INFO] [stderr]     |
[INFO] [stderr] 146 |                 Operand::Byte(0xFFFF),
[INFO] [stderr]     |                               ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: the literal `0xFFFF` (decimal `65535`) does not fit into the type `u8` and will become `255u8`
[INFO] [stderr]     = help: consider using `u16` instead
[INFO] [stderr] 
[INFO] [stderr] warning: literal out of range for u8
[INFO] [stderr]    --> src/main.rs:158:31
[INFO] [stderr]     |
[INFO] [stderr] 158 |                 Operand::Byte(0xFFFF),
[INFO] [stderr]     |                               ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: the literal `0xFFFF` (decimal `65535`) does not fit into the type `u8` and will become `255u8`
[INFO] [stderr]     = help: consider using `u16` instead
[INFO] [stderr] 
[INFO] [stderr] warning: 20 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/chip88-6ef214f50eab20d6
[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
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "7ac31f702f524f5ec7f8c4a78764b4768e5f9eadccd2bf3259b54aa42a09884e"`
[INFO] running `"docker" "rm" "-f" "7ac31f702f524f5ec7f8c4a78764b4768e5f9eadccd2bf3259b54aa42a09884e"`
[INFO] [stdout] 7ac31f702f524f5ec7f8c4a78764b4768e5f9eadccd2bf3259b54aa42a09884e