[INFO] cloning repository https://github.com/pczora/nihgbe
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pczora/nihgbe" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpczora%2Fnihgbe", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpczora%2Fnihgbe'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d30674150adf8a220b234743221a176f1a91aacb
[INFO] testing pczora/nihgbe against try#8262275854dc0e5381c9d42d56257d94932c5a87 for pr-90799
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpczora%2Fnihgbe" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/pczora/nihgbe on toolchain 8262275854dc0e5381c9d42d56257d94932c5a87
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/pczora/nihgbe
[INFO] finished tweaking git repo https://github.com/pczora/nihgbe
[INFO] tweaked toml for git repo https://github.com/pczora/nihgbe written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/pczora/nihgbe already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded sdl2-sys v0.34.5
[INFO] [stderr]   Downloaded sdl2 v0.34.5
[INFO] running `Command { std: "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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ceb1040e3284762115ea0c5dddd76975f20d21772a72be644970d184bb6a8d62
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "ceb1040e3284762115ea0c5dddd76975f20d21772a72be644970d184bb6a8d62", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ceb1040e3284762115ea0c5dddd76975f20d21772a72be644970d184bb6a8d62", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ceb1040e3284762115ea0c5dddd76975f20d21772a72be644970d184bb6a8d62", kill_on_drop: false }`
[INFO] [stdout] ceb1040e3284762115ea0c5dddd76975f20d21772a72be644970d184bb6a8d62
[INFO] running `Command { std: "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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 08ac86053471b6fb21eb704028766b4d6966dc81c49c88b73b776386377cdfd7
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "08ac86053471b6fb21eb704028766b4d6966dc81c49c88b73b776386377cdfd7", 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]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling version-compare v0.0.10
[INFO] [stderr]    Compiling sdl2 v0.34.5
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling sdl2-sys v0.34.5
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling nihgbe v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `super::cpu`
[INFO] [stdout]  --> src/debug.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use super::cpu;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `HALFCARRY_FLAG`
[INFO] [stdout]   --> src/cpu.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | const HALFCARRY_FLAG: u8 = 0b00100000;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `CPU_FREQUENCY_HZ`
[INFO] [stdout]   --> src/cpu.rs:31:1
[INFO] [stdout]    |
[INFO] [stdout] 31 | const CPU_FREQUENCY_HZ: i32 = 4_194_304;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `dec_16bit_register`
[INFO] [stdout]    --> src/cpu.rs:500:8
[INFO] [stdout]     |
[INFO] [stdout] 500 |     fn dec_16bit_register(&self, reg: &Registers) -> CPU {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_subtract`
[INFO] [stdout]    --> src/cpu.rs:576:8
[INFO] [stdout]     |
[INFO] [stdout] 576 |     fn get_subtract(&self) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `EMPTY_UNUSABLE_0_START`
[INFO] [stdout]  --> src/mem.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | const EMPTY_UNUSABLE_0_START: u16 = 0xfea0;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_pixel_value`
[INFO] [stdout]   --> src/ppu.rs:30:8
[INFO] [stdout]    |
[INFO] [stdout] 30 |     fn get_pixel_value(&self, pixel: u8) -> u8 {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_high_byte`
[INFO] [stdout]   --> src/registers.rs:35:12
[INFO] [stdout]    |
[INFO] [stdout] 35 |     pub fn set_high_byte(&self, byte: u8) -> Register {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_low_byte`
[INFO] [stdout]   --> src/registers.rs:44:12
[INFO] [stdout]    |
[INFO] [stdout] 44 |     pub fn set_low_byte(&self, byte: u8) -> Register {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_16bit_value`
[INFO] [stdout]   --> src/registers.rs:50:12
[INFO] [stdout]    |
[INFO] [stdout] 50 |     pub fn set_16bit_value(&self, bytes: u16) -> Register {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `AF`
[INFO] [stdout]   --> src/registers.rs:64:5
[INFO] [stdout]    |
[INFO] [stdout] 64 |     AF,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.58s
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "08ac86053471b6fb21eb704028766b4d6966dc81c49c88b73b776386377cdfd7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08ac86053471b6fb21eb704028766b4d6966dc81c49c88b73b776386377cdfd7", kill_on_drop: false }`
[INFO] [stdout] 08ac86053471b6fb21eb704028766b4d6966dc81c49c88b73b776386377cdfd7
[INFO] running `Command { std: "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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e22962f4d7c6d87cec7921184236605a40084536ddc992b23002a86d327afaeb
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "e22962f4d7c6d87cec7921184236605a40084536ddc992b23002a86d327afaeb", kill_on_drop: false }`
[INFO] [stderr]    Compiling nihgbe v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `super::cpu`
[INFO] [stdout]  --> src/debug.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use super::cpu;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::iter`
[INFO] [stdout]    --> src/mem.rs:132:9
[INFO] [stdout]     |
[INFO] [stdout] 132 |     use std::iter;
[INFO] [stdout]     |         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `HALFCARRY_FLAG`
[INFO] [stdout]   --> src/cpu.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | const HALFCARRY_FLAG: u8 = 0b00100000;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `CPU_FREQUENCY_HZ`
[INFO] [stdout]   --> src/cpu.rs:31:1
[INFO] [stdout]    |
[INFO] [stdout] 31 | const CPU_FREQUENCY_HZ: i32 = 4_194_304;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `dec_16bit_register`
[INFO] [stdout]    --> src/cpu.rs:500:8
[INFO] [stdout]     |
[INFO] [stdout] 500 |     fn dec_16bit_register(&self, reg: &Registers) -> CPU {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_subtract`
[INFO] [stdout]    --> src/cpu.rs:576:8
[INFO] [stdout]     |
[INFO] [stdout] 576 |     fn get_subtract(&self) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `EMPTY_UNUSABLE_0_START`
[INFO] [stdout]  --> src/mem.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | const EMPTY_UNUSABLE_0_START: u16 = 0xfea0;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_high_byte`
[INFO] [stdout]   --> src/registers.rs:35:12
[INFO] [stdout]    |
[INFO] [stdout] 35 |     pub fn set_high_byte(&self, byte: u8) -> Register {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_low_byte`
[INFO] [stdout]   --> src/registers.rs:44:12
[INFO] [stdout]    |
[INFO] [stdout] 44 |     pub fn set_low_byte(&self, byte: u8) -> Register {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_16bit_value`
[INFO] [stdout]   --> src/registers.rs:50:12
[INFO] [stdout]    |
[INFO] [stdout] 50 |     pub fn set_16bit_value(&self, bytes: u16) -> Register {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `AF`
[INFO] [stdout]   --> src/registers.rs:64:5
[INFO] [stdout]    |
[INFO] [stdout] 64 |     AF,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.46s
[INFO] running `Command { std: "docker" "inspect" "e22962f4d7c6d87cec7921184236605a40084536ddc992b23002a86d327afaeb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e22962f4d7c6d87cec7921184236605a40084536ddc992b23002a86d327afaeb", kill_on_drop: false }`
[INFO] [stdout] e22962f4d7c6d87cec7921184236605a40084536ddc992b23002a86d327afaeb
[INFO] running `Command { std: "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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 2fb8f85dc7e167c5e0d242b9f6cbc3267b7bbda267ec12332f52357a09b60d44
[INFO] running `Command { std: "docker" "start" "-a" "2fb8f85dc7e167c5e0d242b9f6cbc3267b7bbda267ec12332f52357a09b60d44", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `super::cpu`
[INFO] [stderr]  --> src/debug.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use super::cpu;
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::iter`
[INFO] [stderr]    --> src/mem.rs:132:9
[INFO] [stderr]     |
[INFO] [stderr] 132 |     use std::iter;
[INFO] [stderr]     |         ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `HALFCARRY_FLAG`
[INFO] [stderr]   --> src/cpu.rs:10:1
[INFO] [stderr]    |
[INFO] [stderr] 10 | const HALFCARRY_FLAG: u8 = 0b00100000;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `CPU_FREQUENCY_HZ`
[INFO] [stderr]   --> src/cpu.rs:31:1
[INFO] [stderr]    |
[INFO] [stderr] 31 | const CPU_FREQUENCY_HZ: i32 = 4_194_304;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `dec_16bit_register`
[INFO] [stderr]    --> src/cpu.rs:500:8
[INFO] [stderr]     |
[INFO] [stderr] 500 |     fn dec_16bit_register(&self, reg: &Registers) -> CPU {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `get_subtract`
[INFO] [stderr]    --> src/cpu.rs:576:8
[INFO] [stderr]     |
[INFO] [stderr] 576 |     fn get_subtract(&self) -> bool {
[INFO] [stderr]     |        ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `EMPTY_UNUSABLE_0_START`
[INFO] [stderr]  --> src/mem.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | const EMPTY_UNUSABLE_0_START: u16 = 0xfea0;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `set_high_byte`
[INFO] [stderr]   --> src/registers.rs:35:12
[INFO] [stderr]    |
[INFO] [stderr] 35 |     pub fn set_high_byte(&self, byte: u8) -> Register {
[INFO] [stderr]    |            ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `set_low_byte`
[INFO] [stderr]   --> src/registers.rs:44:12
[INFO] [stderr]    |
[INFO] [stderr] 44 |     pub fn set_low_byte(&self, byte: u8) -> Register {
[INFO] [stderr]    |            ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `set_16bit_value`
[INFO] [stderr]   --> src/registers.rs:50:12
[INFO] [stderr]    |
[INFO] [stderr] 50 |     pub fn set_16bit_value(&self, bytes: u16) -> Register {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `AF`
[INFO] [stderr]   --> src/registers.rs:64:5
[INFO] [stderr]    |
[INFO] [stderr] 64 |     AF,
[INFO] [stderr]    |     ^^
[INFO] [stderr] 
[INFO] [stderr] warning: `nihgbe` (bin "nihgbe" test) generated 11 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/nihgbe-40a7dac6175166e0)
[INFO] [stdout] 
[INFO] [stdout] running 14 tests
[INFO] [stdout] test cpu::tests::test_combine_bytes ... ok
[INFO] [stdout] test cpu::tests::test_prefixed_rotate_left ... ok
[INFO] [stdout] test cpu::tests::test_prefixed_rotate_left_rotat_carry_in ... ok
[INFO] [stdout] test cpu::tests::test_set_zero ... ok
[INFO] [stdout] test cpu::tests::test_unset_zero ... ok
[INFO] [stdout] test mem::tests::test_reset_bit_already_reset ... ok
[INFO] [stdout] test mem::tests::test_set_bit_not_overwriting ... ok
[INFO] [stdout] test mem::tests::test_set_bit ... ok
[INFO] [stdout] test ppu::tests::test_get_pixel ... ok
[INFO] [stdout] test cpu::tests::test_set_carry ... ok
[INFO] [stdout] test cpu::tests::test_get_zero ... ok
[INFO] [stdout] test mem::tests::test_set_bit_already_set ... ok
[INFO] [stdout] test mem::tests::test_reset_bit ... ok
[INFO] [stdout] test mem::tests::test_read_bytes ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 14 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "2fb8f85dc7e167c5e0d242b9f6cbc3267b7bbda267ec12332f52357a09b60d44", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2fb8f85dc7e167c5e0d242b9f6cbc3267b7bbda267ec12332f52357a09b60d44", kill_on_drop: false }`
[INFO] [stdout] 2fb8f85dc7e167c5e0d242b9f6cbc3267b7bbda267ec12332f52357a09b60d44