[INFO] updating cached repository https://github.com/wbjohnston/gameboy
[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] 7b941701ef8a8b59bc8a87c03a7799433d9fd0c7
[INFO] testing wbjohnston/gameboy against beta-2020-06-03 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwbjohnston%2Fgameboy" "/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/wbjohnston/gameboy on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/wbjohnston/gameboy
[INFO] finished tweaking git repo https://github.com/wbjohnston/gameboy
[INFO] tweaked toml for git repo https://github.com/wbjohnston/gameboy written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/wbjohnston/gameboy already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "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" "+beta-2020-06-03" "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] 6a5d7d0fa05db16bf69bf7cf7b6d27b50ceda7f2af22dbd53e1a132c44b048b9
[INFO] running `"docker" "start" "-a" "6a5d7d0fa05db16bf69bf7cf7b6d27b50ceda7f2af22dbd53e1a132c44b048b9"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling syn v1.0.8
[INFO] [stderr]    Compiling cc v1.0.47
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]    Compiling backtrace-sys v0.1.32
[INFO] [stderr]    Compiling backtrace v0.3.40
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling failure_derive v0.1.6
[INFO] [stderr]    Compiling failure v0.1.6
[INFO] [stderr]    Compiling derivative v1.0.3
[INFO] [stderr]    Compiling gameboy v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `mmu`
[INFO] [stderr]   --> src/ppu.rs:15:26
[INFO] [stderr]    |
[INFO] [stderr] 15 |   pub fn step(&mut self, mmu: &mut MMU, n_cycles: u8) {
[INFO] [stderr]    |                          ^^^ help: if this is intentional, prefix it with an underscore: `_mmu`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n_cycles`
[INFO] [stderr]   --> src/ppu.rs:15:41
[INFO] [stderr]    |
[INFO] [stderr] 15 |   pub fn step(&mut self, mmu: &mut MMU, n_cycles: u8) {
[INFO] [stderr]    |                                         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_n_cycles`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `address`
[INFO] [stderr]   --> src/cartridge.rs:31:26
[INFO] [stderr]    |
[INFO] [stderr] 31 |   pub fn read_ram(&self, address: u16) -> u8 {
[INFO] [stderr]    |                          ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_address`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]   --> src/util.rs:24:36
[INFO] [stderr]    |
[INFO] [stderr] 24 | pub fn set_bit(target: u16, n: u8, value: bool) -> u16 {
[INFO] [stderr]    |                                    ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `get_n_flag`
[INFO] [stderr]     --> src/cpu.rs:1145:6
[INFO] [stderr]      |
[INFO] [stderr] 1145 |   fn get_n_flag(&self) -> bool {
[INFO] [stderr]      |      ^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `n_flag`
[INFO] [stderr]     --> src/cpu.rs:1174:6
[INFO] [stderr]      |
[INFO] [stderr] 1174 |   fn n_flag(&self) -> bool {
[INFO] [stderr]      |      ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `h_flag`
[INFO] [stderr]     --> src/cpu.rs:1178:6
[INFO] [stderr]      |
[INFO] [stderr] 1178 |   fn h_flag(&self) -> bool {
[INFO] [stderr]      |      ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 7 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `cartridge`
[INFO] [stderr]   --> src/bin/debugger.rs:47:7
[INFO] [stderr]    |
[INFO] [stderr] 47 |   let cartridge = {
[INFO] [stderr]    |       ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_cartridge`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 42.10s
[INFO] running `"docker" "inspect" "6a5d7d0fa05db16bf69bf7cf7b6d27b50ceda7f2af22dbd53e1a132c44b048b9"`
[INFO] running `"docker" "rm" "-f" "6a5d7d0fa05db16bf69bf7cf7b6d27b50ceda7f2af22dbd53e1a132c44b048b9"`
[INFO] [stdout] 6a5d7d0fa05db16bf69bf7cf7b6d27b50ceda7f2af22dbd53e1a132c44b048b9
[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" "+beta-2020-06-03" "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] 25644952efd171db5d8ddc50e476ef8f35c3441cbbe869e9461a4de435b7d7b6
[INFO] running `"docker" "start" "-a" "25644952efd171db5d8ddc50e476ef8f35c3441cbbe869e9461a4de435b7d7b6"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling serde v1.0.103
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling rayon-core v1.6.1
[INFO] [stderr]    Compiling unicode-width v0.1.6
[INFO] [stderr]    Compiling crossbeam-utils v0.7.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.0
[INFO] [stderr]    Compiling num-traits v0.2.10
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling getrandom v0.1.13
[INFO] [stderr]    Compiling num_cpus v1.11.1
[INFO] [stderr]    Compiling atty v0.2.13
[INFO] [stderr]    Compiling memoffset v0.5.3
[INFO] [stderr]    Compiling cast v0.2.3
[INFO] [stderr]    Compiling quickcheck_macros v0.8.0
[INFO] [stderr]    Compiling serde_derive v1.0.103
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr] warning: unused variable: `mmu`
[INFO] [stderr]   --> src/ppu.rs:15:26
[INFO] [stderr]    |
[INFO] [stderr] 15 |   pub fn step(&mut self, mmu: &mut MMU, n_cycles: u8) {
[INFO] [stderr]    |                          ^^^ help: if this is intentional, prefix it with an underscore: `_mmu`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n_cycles`
[INFO] [stderr]   --> src/ppu.rs:15:41
[INFO] [stderr]    |
[INFO] [stderr] 15 |   pub fn step(&mut self, mmu: &mut MMU, n_cycles: u8) {
[INFO] [stderr]    |                                         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_n_cycles`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `address`
[INFO] [stderr]   --> src/cartridge.rs:31:26
[INFO] [stderr]    |
[INFO] [stderr] 31 |   pub fn read_ram(&self, address: u16) -> u8 {
[INFO] [stderr]    |                          ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_address`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]   --> src/util.rs:24:36
[INFO] [stderr]    |
[INFO] [stderr] 24 | pub fn set_bit(target: u16, n: u8, value: bool) -> u16 {
[INFO] [stderr]    |                                    ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `get_n_flag`
[INFO] [stderr]     --> src/cpu.rs:1145:6
[INFO] [stderr]      |
[INFO] [stderr] 1145 |   fn get_n_flag(&self) -> bool {
[INFO] [stderr]      |      ^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `n_flag`
[INFO] [stderr]     --> src/cpu.rs:1174:6
[INFO] [stderr]      |
[INFO] [stderr] 1174 |   fn n_flag(&self) -> bool {
[INFO] [stderr]      |      ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `h_flag`
[INFO] [stderr]     --> src/cpu.rs:1178:6
[INFO] [stderr]      |
[INFO] [stderr] 1178 |   fn h_flag(&self) -> bool {
[INFO] [stderr]      |      ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 7 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling rand_chacha v0.2.1
[INFO] [stderr]    Compiling rand_os v0.2.2
[INFO] [stderr]    Compiling rand_xoshiro v0.3.1
[INFO] [stderr]    Compiling rand v0.7.2
[INFO] [stderr]    Compiling crossbeam-queue v0.2.0
[INFO] [stderr]    Compiling aho-corasick v0.7.6
[INFO] [stderr]    Compiling csv-core v0.1.6
[INFO] [stderr]    Compiling regex-automata v0.1.8
[INFO] [stderr]    Compiling crossbeam-deque v0.7.2
[INFO] [stderr]    Compiling criterion-plot v0.4.0
[INFO] [stderr]    Compiling rayon v1.2.1
[INFO] [stderr]    Compiling regex v1.3.1
[INFO] [stderr]    Compiling env_logger v0.6.2
[INFO] [stderr]    Compiling quickcheck v0.9.0
[INFO] [stderr]    Compiling serde_json v1.0.42
[INFO] [stderr]    Compiling bstr v0.2.8
[INFO] [stderr]    Compiling tinytemplate v1.0.2
[INFO] [stderr]    Compiling csv v1.1.1
[INFO] [stderr]    Compiling criterion v0.3.0
[INFO] [stderr]    Compiling gameboy v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `cartridge`
[INFO] [stderr]   --> src/bin/debugger.rs:47:7
[INFO] [stderr]    |
[INFO] [stderr] 47 |   let cartridge = {
[INFO] [stderr]    |       ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_cartridge`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `mmu`
[INFO] [stderr]   --> src/ppu.rs:15:26
[INFO] [stderr]    |
[INFO] [stderr] 15 |   pub fn step(&mut self, mmu: &mut MMU, n_cycles: u8) {
[INFO] [stderr]    |                          ^^^ help: if this is intentional, prefix it with an underscore: `_mmu`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n_cycles`
[INFO] [stderr]   --> src/ppu.rs:15:41
[INFO] [stderr]    |
[INFO] [stderr] 15 |   pub fn step(&mut self, mmu: &mut MMU, n_cycles: u8) {
[INFO] [stderr]    |                                         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_n_cycles`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `address`
[INFO] [stderr]   --> src/cartridge.rs:31:26
[INFO] [stderr]    |
[INFO] [stderr] 31 |   pub fn read_ram(&self, address: u16) -> u8 {
[INFO] [stderr]    |                          ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_address`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]   --> src/util.rs:24:36
[INFO] [stderr]    |
[INFO] [stderr] 24 | pub fn set_bit(target: u16, n: u8, value: bool) -> u16 {
[INFO] [stderr]    |                                    ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `get_n_flag`
[INFO] [stderr]     --> src/cpu.rs:1145:6
[INFO] [stderr]      |
[INFO] [stderr] 1145 |   fn get_n_flag(&self) -> bool {
[INFO] [stderr]      |      ^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `n_flag`
[INFO] [stderr]     --> src/cpu.rs:1174:6
[INFO] [stderr]      |
[INFO] [stderr] 1174 |   fn n_flag(&self) -> bool {
[INFO] [stderr]      |      ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `h_flag`
[INFO] [stderr]     --> src/cpu.rs:1178:6
[INFO] [stderr]      |
[INFO] [stderr] 1178 |   fn h_flag(&self) -> bool {
[INFO] [stderr]      |      ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 7 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1m 15s
[INFO] running `"docker" "inspect" "25644952efd171db5d8ddc50e476ef8f35c3441cbbe869e9461a4de435b7d7b6"`
[INFO] running `"docker" "rm" "-f" "25644952efd171db5d8ddc50e476ef8f35c3441cbbe869e9461a4de435b7d7b6"`
[INFO] [stdout] 25644952efd171db5d8ddc50e476ef8f35c3441cbbe869e9461a4de435b7d7b6
[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" "+beta-2020-06-03" "test" "--frozen"`
[INFO] [stdout] 34b4f6fc63c0c1d4980f644dbea436822f4a3fd22262e4d601d0bbd4877c3695
[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" "34b4f6fc63c0c1d4980f644dbea436822f4a3fd22262e4d601d0bbd4877c3695"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: unused variable: `mmu`
[INFO] [stdout] 
[INFO] [stderr]   --> src/ppu.rs:15:26
[INFO] [stdout] running 7 tests
[INFO] [stderr]    |
[INFO] [stdout] test mmu::test::bios_disabling_works ... ok
[INFO] [stderr] 15 |   pub fn step(&mut self, mmu: &mut MMU, n_cycles: u8) {
[INFO] [stdout] test util::test::get_bit_works ... ok
[INFO] [stderr]    |                          ^^^ help: if this is intentional, prefix it with an underscore: `_mmu`
[INFO] [stdout] test util::test::pack_and_unpack_is_equal ... ok
[INFO] [stderr]    |
[INFO] [stdout] test util::test::set_upper_works ... ok
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] test util::test::unpack_returns_bytes_in_correct_order ... ok
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n_cycles`
[INFO] [stderr]   --> src/ppu.rs:15:41
[INFO] [stderr]    |
[INFO] [stderr] 15 |   pub fn step(&mut self, mmu: &mut MMU, n_cycles: u8) {
[INFO] [stderr]    |                                         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_n_cycles`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `address`
[INFO] [stderr]   --> src/cartridge.rs:31:26
[INFO] [stderr]    |
[INFO] [stderr] 31 |   pub fn read_ram(&self, address: u16) -> u8 {
[INFO] [stderr]    |                          ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_address`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]   --> src/util.rs:24:36
[INFO] [stderr]    |
[INFO] [stderr] 24 | pub fn set_bit(target: u16, n: u8, value: bool) -> u16 {
[INFO] [stderr]    |                                    ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `get_n_flag`
[INFO] [stderr]     --> src/cpu.rs:1145:6
[INFO] [stderr]      |
[INFO] [stderr] 1145 |   fn get_n_flag(&self) -> bool {
[INFO] [stderr]      |      ^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `n_flag`
[INFO] [stderr]     --> src/cpu.rs:1174:6
[INFO] [stderr]      |
[INFO] [stderr] 1174 |   fn n_flag(&self) -> bool {
[INFO] [stderr]      |      ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `mmu`
[INFO] [stderr]   --> src/ppu.rs:15:26
[INFO] [stderr]    |
[INFO] [stderr] 15 |   pub fn step(&mut self, mmu: &mut MMU, n_cycles: u8) {
[INFO] [stderr]    |                          ^^^ help: if this is intentional, prefix it with an underscore: `_mmu`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `h_flag`
[INFO] [stderr]     --> src/cpu.rs:1178:6
[INFO] [stderr]      |
[INFO] [stderr] 1178 |   fn h_flag(&self) -> bool {
[INFO] [stderr]      |      ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 7 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n_cycles`
[INFO] [stderr]   --> src/ppu.rs:15:41
[INFO] [stderr]    |
[INFO] [stderr] 15 |   pub fn step(&mut self, mmu: &mut MMU, n_cycles: u8) {
[INFO] [stderr]    |                                         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_n_cycles`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `address`
[INFO] [stderr]   --> src/cartridge.rs:31:26
[INFO] [stderr]    |
[INFO] [stderr] 31 |   pub fn read_ram(&self, address: u16) -> u8 {
[INFO] [stderr]    |                          ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_address`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]   --> src/util.rs:24:36
[INFO] [stderr]    |
[INFO] [stderr] 24 | pub fn set_bit(target: u16, n: u8, value: bool) -> u16 {
[INFO] [stderr]    |                                    ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `get_n_flag`
[INFO] [stderr]     --> src/cpu.rs:1145:6
[INFO] [stderr]      |
[INFO] [stderr] 1145 |   fn get_n_flag(&self) -> bool {
[INFO] [stderr]      |      ^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `n_flag`
[INFO] [stderr]     --> src/cpu.rs:1174:6
[INFO] [stderr]      |
[INFO] [stderr] 1174 |   fn n_flag(&self) -> bool {
[INFO] [stderr]      |      ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `h_flag`
[INFO] [stderr]     --> src/cpu.rs:1178:6
[INFO] [stderr]      |
[INFO] [stderr] 1178 |   fn h_flag(&self) -> bool {
[INFO] [stderr]      |      ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 7 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `cartridge`
[INFO] [stderr]   --> src/bin/debugger.rs:47:7
[INFO] [stderr]    |
[INFO] [stderr] 47 |   let cartridge = {
[INFO] [stderr]    |       ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_cartridge`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.29s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/gameboy-8299976b89f19900
[INFO] [stdout] test util::test::set_lower_works ... ok
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/debug-92dabb08d2f0532a
[INFO] [stdout] test mmu::test::address_is_read_from_correct_region ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[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] [stderr]    Doc-tests gameboy
[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" "34b4f6fc63c0c1d4980f644dbea436822f4a3fd22262e4d601d0bbd4877c3695"`
[INFO] running `"docker" "rm" "-f" "34b4f6fc63c0c1d4980f644dbea436822f4a3fd22262e4d601d0bbd4877c3695"`
[INFO] [stdout] 34b4f6fc63c0c1d4980f644dbea436822f4a3fd22262e4d601d0bbd4877c3695