[INFO] updating cached repository https://github.com/brunodea/gebemula
[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] 19ef00deb2d78ee88dd9a357db48568c7a0329a6
[INFO] testing brunodea/gebemula against beta-2020-06-03 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbrunodea%2Fgebemula" "/workspace/builds/worker-4/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/brunodea/gebemula 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/brunodea/gebemula
[INFO] finished tweaking git repo https://github.com/brunodea/gebemula
[INFO] tweaked toml for git repo https://github.com/brunodea/gebemula written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/brunodea/gebemula 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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 235124b323446a55cb856ecea4a8130fd97a0a4918b874480d1a855d6a3f07d8
[INFO] running `"docker" "start" "-a" "235124b323446a55cb856ecea4a8130fd97a0a4918b874480d1a855d6a3f07d8"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling arrayref v0.3.4
[INFO] [stderr]    Compiling sdl2-sys v0.31.0
[INFO] [stderr]    Compiling blip_buf-sys v0.1.3
[INFO] [stderr]    Compiling clap v2.31.2
[INFO] [stderr]    Compiling num v0.1.42
[INFO] [stderr]    Compiling blip_buf v0.1.4
[INFO] [stderr]    Compiling sdl2 v0.31.0
[INFO] [stderr]    Compiling gebemula v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]     --> src/cpu/mod.rs:1093:13
[INFO] [stderr]      |
[INFO] [stderr] 1093 |             _ => unreachable!(),
[INFO] [stderr]      |             ^
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/debugger.rs:579:13
[INFO] [stderr]     |
[INFO] [stderr] 579 |             _ => unreachable!(),
[INFO] [stderr]     |             ^
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/mem/mod.rs:142:13
[INFO] [stderr]     |
[INFO] [stderr] 142 |             _ => panic!("Out of bound! Tried to write to {:#x}.", address),
[INFO] [stderr]     |             ^
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/mem/mod.rs:210:13
[INFO] [stderr]     |
[INFO] [stderr] 210 |             _ => panic!("Out of bound! Tried to read from {:#x}.", address),
[INFO] [stderr]     |             ^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `IO_END`
[INFO] [stderr]  --> src/peripherals/sound.rs:8:1
[INFO] [stderr]   |
[INFO] [stderr] 8 | const IO_END: u16 = 0xFF3F;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `NR41_REGISTER_ADDR`
[INFO] [stderr]   --> src/peripherals/sound.rs:31:1
[INFO] [stderr]    |
[INFO] [stderr] 31 | pub const NR41_REGISTER_ADDR: u16 = 0xFF20;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `NR42_REGISTER_ADDR`
[INFO] [stderr]   --> src/peripherals/sound.rs:32:1
[INFO] [stderr]    |
[INFO] [stderr] 32 | pub const NR42_REGISTER_ADDR: u16 = 0xFF21;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `NR43_REGISTER_ADDR`
[INFO] [stderr]   --> src/peripherals/sound.rs:33:1
[INFO] [stderr]    |
[INFO] [stderr] 33 | pub const NR43_REGISTER_ADDR: u16 = 0xFF22;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `NR44_REGISTER_ADDR`
[INFO] [stderr]   --> src/peripherals/sound.rs:34:1
[INFO] [stderr]    |
[INFO] [stderr] 34 | pub const NR44_REGISTER_ADDR: u16 = 0xFF23;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `OUTPUT_FREQUENCY`
[INFO] [stderr]   --> src/peripherals/sound.rs:45:1
[INFO] [stderr]    |
[INFO] [stderr] 45 | pub const OUTPUT_FREQUENCY: u32 = CPU_FREQUENCY_HZ;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `OUTPUT_CHANNELS`
[INFO] [stderr]   --> src/peripherals/sound.rs:46:1
[INFO] [stderr]    |
[INFO] [stderr] 46 | pub const OUTPUT_CHANNELS: usize = 2;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `output_on`
[INFO] [stderr]    --> src/peripherals/sound.rs:136:8
[INFO] [stderr]     |
[INFO] [stderr] 136 |     fn output_on(&self) -> bool {
[INFO] [stderr]     |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `frequency`
[INFO] [stderr]    --> src/peripherals/sound.rs:163:8
[INFO] [stderr]     |
[INFO] [stderr] 163 |     fn frequency(&self) -> u16 {
[INFO] [stderr]     |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `channel_num`
[INFO] [stderr]    --> src/peripherals/sound.rs:197:5
[INFO] [stderr]     |
[INFO] [stderr] 197 |     channel_num: u8,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `ch4`
[INFO] [stderr]    --> src/peripherals/sound.rs:453:5
[INFO] [stderr]     |
[INFO] [stderr] 453 |     ch4: NoiseVoice,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `nr4x`
[INFO] [stderr]    --> src/peripherals/sound.rs:678:8
[INFO] [stderr]     |
[INFO] [stderr] 678 |     fn nr4x(&self) -> &[u8; 5] {
[INFO] [stderr]     |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `nr5x`
[INFO] [stderr]    --> src/peripherals/sound.rs:682:8
[INFO] [stderr]     |
[INFO] [stderr] 682 |     fn nr5x(&self) -> &[u8; 3] {
[INFO] [stderr]     |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `wave_table`
[INFO] [stderr]    --> src/peripherals/sound.rs:686:8
[INFO] [stderr]     |
[INFO] [stderr] 686 |     fn wave_table(&self) -> &[u8] {
[INFO] [stderr]     |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 18 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.78s
[INFO] running `"docker" "inspect" "235124b323446a55cb856ecea4a8130fd97a0a4918b874480d1a855d6a3f07d8"`
[INFO] running `"docker" "rm" "-f" "235124b323446a55cb856ecea4a8130fd97a0a4918b874480d1a855d6a3f07d8"`
[INFO] [stdout] 235124b323446a55cb856ecea4a8130fd97a0a4918b874480d1a855d6a3f07d8
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 675ee405ee5a78ea51e45c1e77560bc334c65dac3cb3e5e8d9139b7805007696
[INFO] running `"docker" "start" "-a" "675ee405ee5a78ea51e45c1e77560bc334c65dac3cb3e5e8d9139b7805007696"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling gebemula v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]     --> src/cpu/mod.rs:1093:13
[INFO] [stderr]      |
[INFO] [stderr] 1093 |             _ => unreachable!(),
[INFO] [stderr]      |             ^
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/debugger.rs:579:13
[INFO] [stderr]     |
[INFO] [stderr] 579 |             _ => unreachable!(),
[INFO] [stderr]     |             ^
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/mem/mod.rs:142:13
[INFO] [stderr]     |
[INFO] [stderr] 142 |             _ => panic!("Out of bound! Tried to write to {:#x}.", address),
[INFO] [stderr]     |             ^
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/mem/mod.rs:210:13
[INFO] [stderr]     |
[INFO] [stderr] 210 |             _ => panic!("Out of bound! Tried to read from {:#x}.", address),
[INFO] [stderr]     |             ^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `IO_END`
[INFO] [stderr]  --> src/peripherals/sound.rs:8:1
[INFO] [stderr]   |
[INFO] [stderr] 8 | const IO_END: u16 = 0xFF3F;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `NR41_REGISTER_ADDR`
[INFO] [stderr]   --> src/peripherals/sound.rs:31:1
[INFO] [stderr]    |
[INFO] [stderr] 31 | pub const NR41_REGISTER_ADDR: u16 = 0xFF20;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `NR42_REGISTER_ADDR`
[INFO] [stderr]   --> src/peripherals/sound.rs:32:1
[INFO] [stderr]    |
[INFO] [stderr] 32 | pub const NR42_REGISTER_ADDR: u16 = 0xFF21;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `NR43_REGISTER_ADDR`
[INFO] [stderr]   --> src/peripherals/sound.rs:33:1
[INFO] [stderr]    |
[INFO] [stderr] 33 | pub const NR43_REGISTER_ADDR: u16 = 0xFF22;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `NR44_REGISTER_ADDR`
[INFO] [stderr]   --> src/peripherals/sound.rs:34:1
[INFO] [stderr]    |
[INFO] [stderr] 34 | pub const NR44_REGISTER_ADDR: u16 = 0xFF23;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `OUTPUT_FREQUENCY`
[INFO] [stderr]   --> src/peripherals/sound.rs:45:1
[INFO] [stderr]    |
[INFO] [stderr] 45 | pub const OUTPUT_FREQUENCY: u32 = CPU_FREQUENCY_HZ;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `OUTPUT_CHANNELS`
[INFO] [stderr]   --> src/peripherals/sound.rs:46:1
[INFO] [stderr]    |
[INFO] [stderr] 46 | pub const OUTPUT_CHANNELS: usize = 2;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `output_on`
[INFO] [stderr]    --> src/peripherals/sound.rs:136:8
[INFO] [stderr]     |
[INFO] [stderr] 136 |     fn output_on(&self) -> bool {
[INFO] [stderr]     |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `frequency`
[INFO] [stderr]    --> src/peripherals/sound.rs:163:8
[INFO] [stderr]     |
[INFO] [stderr] 163 |     fn frequency(&self) -> u16 {
[INFO] [stderr]     |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `channel_num`
[INFO] [stderr]    --> src/peripherals/sound.rs:197:5
[INFO] [stderr]     |
[INFO] [stderr] 197 |     channel_num: u8,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `ch4`
[INFO] [stderr]    --> src/peripherals/sound.rs:453:5
[INFO] [stderr]     |
[INFO] [stderr] 453 |     ch4: NoiseVoice,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `nr4x`
[INFO] [stderr]    --> src/peripherals/sound.rs:678:8
[INFO] [stderr]     |
[INFO] [stderr] 678 |     fn nr4x(&self) -> &[u8; 5] {
[INFO] [stderr]     |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `nr5x`
[INFO] [stderr]    --> src/peripherals/sound.rs:682:8
[INFO] [stderr]     |
[INFO] [stderr] 682 |     fn nr5x(&self) -> &[u8; 3] {
[INFO] [stderr]     |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `wave_table`
[INFO] [stderr]    --> src/peripherals/sound.rs:686:8
[INFO] [stderr]     |
[INFO] [stderr] 686 |     fn wave_table(&self) -> &[u8] {
[INFO] [stderr]     |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 18 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.76s
[INFO] running `"docker" "inspect" "675ee405ee5a78ea51e45c1e77560bc334c65dac3cb3e5e8d9139b7805007696"`
[INFO] running `"docker" "rm" "-f" "675ee405ee5a78ea51e45c1e77560bc334c65dac3cb3e5e8d9139b7805007696"`
[INFO] [stdout] 675ee405ee5a78ea51e45c1e77560bc334c65dac3cb3e5e8d9139b7805007696
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d6123d71b2f0b364a7a70dc4ac4bc209881edc42f54f8e5b52f1f1c63edd1123
[INFO] running `"docker" "start" "-a" "d6123d71b2f0b364a7a70dc4ac4bc209881edc42f54f8e5b52f1f1c63edd1123"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: unreachable pattern
[INFO] [stdout] 
[INFO] [stderr]     --> src/cpu/mod.rs:1093:13
[INFO] [stdout] running 0 tests
[INFO] [stderr]      |
[INFO] [stdout] 
[INFO] [stderr] 1093 |             _ => unreachable!(),
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stderr]      |             ^
[INFO] [stdout] 
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/debugger.rs:579:13
[INFO] [stderr]     |
[INFO] [stderr] 579 |             _ => unreachable!(),
[INFO] [stderr]     |             ^
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/mem/mod.rs:142:13
[INFO] [stderr]     |
[INFO] [stderr] 142 |             _ => panic!("Out of bound! Tried to write to {:#x}.", address),
[INFO] [stderr]     |             ^
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/mem/mod.rs:210:13
[INFO] [stderr]     |
[INFO] [stderr] 210 |             _ => panic!("Out of bound! Tried to read from {:#x}.", address),
[INFO] [stderr]     |             ^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `IO_END`
[INFO] [stderr]  --> src/peripherals/sound.rs:8:1
[INFO] [stderr]   |
[INFO] [stderr] 8 | const IO_END: u16 = 0xFF3F;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `NR41_REGISTER_ADDR`
[INFO] [stderr]   --> src/peripherals/sound.rs:31:1
[INFO] [stderr]    |
[INFO] [stderr] 31 | pub const NR41_REGISTER_ADDR: u16 = 0xFF20;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `NR42_REGISTER_ADDR`
[INFO] [stderr]   --> src/peripherals/sound.rs:32:1
[INFO] [stderr]    |
[INFO] [stderr] 32 | pub const NR42_REGISTER_ADDR: u16 = 0xFF21;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `NR43_REGISTER_ADDR`
[INFO] [stderr]   --> src/peripherals/sound.rs:33:1
[INFO] [stderr]    |
[INFO] [stderr] 33 | pub const NR43_REGISTER_ADDR: u16 = 0xFF22;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `NR44_REGISTER_ADDR`
[INFO] [stderr]   --> src/peripherals/sound.rs:34:1
[INFO] [stderr]    |
[INFO] [stderr] 34 | pub const NR44_REGISTER_ADDR: u16 = 0xFF23;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `OUTPUT_FREQUENCY`
[INFO] [stderr]   --> src/peripherals/sound.rs:45:1
[INFO] [stderr]    |
[INFO] [stderr] 45 | pub const OUTPUT_FREQUENCY: u32 = CPU_FREQUENCY_HZ;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `OUTPUT_CHANNELS`
[INFO] [stderr]   --> src/peripherals/sound.rs:46:1
[INFO] [stderr]    |
[INFO] [stderr] 46 | pub const OUTPUT_CHANNELS: usize = 2;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `output_on`
[INFO] [stderr]    --> src/peripherals/sound.rs:136:8
[INFO] [stderr]     |
[INFO] [stderr] 136 |     fn output_on(&self) -> bool {
[INFO] [stderr]     |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `frequency`
[INFO] [stderr]    --> src/peripherals/sound.rs:163:8
[INFO] [stderr]     |
[INFO] [stderr] 163 |     fn frequency(&self) -> u16 {
[INFO] [stderr]     |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `channel_num`
[INFO] [stderr]    --> src/peripherals/sound.rs:197:5
[INFO] [stderr]     |
[INFO] [stderr] 197 |     channel_num: u8,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `ch4`
[INFO] [stderr]    --> src/peripherals/sound.rs:453:5
[INFO] [stderr]     |
[INFO] [stderr] 453 |     ch4: NoiseVoice,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `nr4x`
[INFO] [stderr]    --> src/peripherals/sound.rs:678:8
[INFO] [stderr]     |
[INFO] [stderr] 678 |     fn nr4x(&self) -> &[u8; 5] {
[INFO] [stderr]     |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `nr5x`
[INFO] [stderr]    --> src/peripherals/sound.rs:682:8
[INFO] [stderr]     |
[INFO] [stderr] 682 |     fn nr5x(&self) -> &[u8; 3] {
[INFO] [stderr]     |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `wave_table`
[INFO] [stderr]    --> src/peripherals/sound.rs:686:8
[INFO] [stderr]     |
[INFO] [stderr] 686 |     fn wave_table(&self) -> &[u8] {
[INFO] [stderr]     |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 18 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/gebemula-9a2b9d3dcfcc63c4
[INFO] running `"docker" "inspect" "d6123d71b2f0b364a7a70dc4ac4bc209881edc42f54f8e5b52f1f1c63edd1123"`
[INFO] running `"docker" "rm" "-f" "d6123d71b2f0b364a7a70dc4ac4bc209881edc42f54f8e5b52f1f1c63edd1123"`
[INFO] [stdout] d6123d71b2f0b364a7a70dc4ac4bc209881edc42f54f8e5b52f1f1c63edd1123