[INFO] cloning repository https://github.com/kbernst30/space-invaders
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kbernst30/space-invaders" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkbernst30%2Fspace-invaders", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkbernst30%2Fspace-invaders'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e1ce8d55cb3e1fbbfa829b8dc08726637bd50c68
[INFO] testing kbernst30/space-invaders against beta-2022-02-22 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkbernst30%2Fspace-invaders" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kbernst30/space-invaders on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kbernst30/space-invaders
[INFO] finished tweaking git repo https://github.com/kbernst30/space-invaders
[INFO] tweaked toml for git repo https://github.com/kbernst30/space-invaders written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/kbernst30/space-invaders already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b829d784058642278be3c0a5653397b3aebb13a9d6360061d26d75bfce9d4dbc
[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" "b829d784058642278be3c0a5653397b3aebb13a9d6360061d26d75bfce9d4dbc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b829d784058642278be3c0a5653397b3aebb13a9d6360061d26d75bfce9d4dbc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b829d784058642278be3c0a5653397b3aebb13a9d6360061d26d75bfce9d4dbc", kill_on_drop: false }`
[INFO] [stdout] b829d784058642278be3c0a5653397b3aebb13a9d6360061d26d75bfce9d4dbc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4ebaa1a502a55ce734c45d64d6f1aa49720753d7e8136b53bb388342dda02acf
[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" "4ebaa1a502a55ce734c45d64d6f1aa49720753d7e8136b53bb388342dda02acf", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.112
[INFO] [stderr]    Compiling sdl2 v0.35.1
[INFO] [stderr]    Compiling sdl2-sys v0.35.1
[INFO] [stderr]    Compiling space-invaders v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::utils::*`
[INFO] [stdout]  --> src/ops.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use crate::utils::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sdl2::EventPump`
[INFO] [stdout]  --> src/main.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use sdl2::EventPump;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sdl2::pixels::Color`
[INFO] [stdout]   --> src/main.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use sdl2::pixels::Color;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sdl2::render::TextureCreator`
[INFO] [stdout]   --> src/main.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use sdl2::render::TextureCreator;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `keycode`
[INFO] [stdout]   --> src/main.rs:58:34
[INFO] [stdout]    |
[INFO] [stdout] 58 |                 Event::KeyDown { keycode, .. } => {
[INFO] [stdout]    |                                  ^^^^^^^ help: try ignoring the field: `keycode: _`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `keycode`
[INFO] [stdout]   --> src/main.rs:63:32
[INFO] [stdout]    |
[INFO] [stdout] 63 |                 Event::KeyUp { keycode, .. } => {
[INFO] [stdout]    |                                ^^^^^^^ help: try ignoring the field: `keycode: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `invaders_g`
[INFO] [stdout]   --> src/bus.rs:30:13
[INFO] [stdout]    |
[INFO] [stdout] 30 |         let invaders_g = fs::read("rom/invaders.g")
[INFO] [stdout]    |             ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_invaders_g`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `invaders_f`
[INFO] [stdout]   --> src/bus.rs:33:13
[INFO] [stdout]    |
[INFO] [stdout] 33 |         let invaders_f = fs::read("rom/invaders.f")
[INFO] [stdout]    |             ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_invaders_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `invaders_e`
[INFO] [stdout]   --> src/bus.rs:36:13
[INFO] [stdout]    |
[INFO] [stdout] 36 |         let invaders_e = fs::read("rom/invaders.e")
[INFO] [stdout]    |             ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_invaders_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lower_nibble`
[INFO] [stdout]    --> src/cpu.rs:738:17
[INFO] [stdout]     |
[INFO] [stdout] 738 |             let lower_nibble = (a_reg & 0xF) as Word;
[INFO] [stdout]     |                 ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_lower_nibble`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |     let mut creator = canvas.texture_creator();
[INFO] [stdout]    |         ----^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 34 |     let mut texture = creator
[INFO] [stdout]    |         ----^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/cpu.rs:622:9
[INFO] [stdout]     |
[INFO] [stdout] 622 |         unsafe {
[INFO] [stdout]     |         ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_zero_flag_set`
[INFO] [stdout]    --> src/cpu.rs:150:8
[INFO] [stdout]     |
[INFO] [stdout] 150 |     fn is_zero_flag_set(&self) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_sign_flag_set`
[INFO] [stdout]    --> src/cpu.rs:162:8
[INFO] [stdout]     |
[INFO] [stdout] 162 |     fn is_sign_flag_set(&self) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_parity_flag_set`
[INFO] [stdout]    --> src/cpu.rs:174:8
[INFO] [stdout]     |
[INFO] [stdout] 174 |     fn is_parity_flag_set(&self) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 16 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.53s
[INFO] running `Command { std: "docker" "inspect" "4ebaa1a502a55ce734c45d64d6f1aa49720753d7e8136b53bb388342dda02acf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ebaa1a502a55ce734c45d64d6f1aa49720753d7e8136b53bb388342dda02acf", kill_on_drop: false }`
[INFO] [stdout] 4ebaa1a502a55ce734c45d64d6f1aa49720753d7e8136b53bb388342dda02acf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4be849b76b6a9a11b463f9c44d711c704bd4d034609dba2480a77888837699bb
[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" "4be849b76b6a9a11b463f9c44d711c704bd4d034609dba2480a77888837699bb", kill_on_drop: false }`
[INFO] [stderr]    Compiling space-invaders v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::utils::*`
[INFO] [stdout]  --> src/ops.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use crate::utils::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sdl2::EventPump`
[INFO] [stdout]  --> src/main.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use sdl2::EventPump;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sdl2::pixels::Color`
[INFO] [stdout]   --> src/main.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use sdl2::pixels::Color;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sdl2::render::TextureCreator`
[INFO] [stdout]   --> src/main.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use sdl2::render::TextureCreator;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `keycode`
[INFO] [stdout]   --> src/main.rs:58:34
[INFO] [stdout]    |
[INFO] [stdout] 58 |                 Event::KeyDown { keycode, .. } => {
[INFO] [stdout]    |                                  ^^^^^^^ help: try ignoring the field: `keycode: _`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `keycode`
[INFO] [stdout]   --> src/main.rs:63:32
[INFO] [stdout]    |
[INFO] [stdout] 63 |                 Event::KeyUp { keycode, .. } => {
[INFO] [stdout]    |                                ^^^^^^^ help: try ignoring the field: `keycode: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `invaders_g`
[INFO] [stdout]   --> src/bus.rs:30:13
[INFO] [stdout]    |
[INFO] [stdout] 30 |         let invaders_g = fs::read("rom/invaders.g")
[INFO] [stdout]    |             ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_invaders_g`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `invaders_f`
[INFO] [stdout]   --> src/bus.rs:33:13
[INFO] [stdout]    |
[INFO] [stdout] 33 |         let invaders_f = fs::read("rom/invaders.f")
[INFO] [stdout]    |             ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_invaders_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `invaders_e`
[INFO] [stdout]   --> src/bus.rs:36:13
[INFO] [stdout]    |
[INFO] [stdout] 36 |         let invaders_e = fs::read("rom/invaders.e")
[INFO] [stdout]    |             ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_invaders_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lower_nibble`
[INFO] [stdout]    --> src/cpu.rs:738:17
[INFO] [stdout]     |
[INFO] [stdout] 738 |             let lower_nibble = (a_reg & 0xF) as Word;
[INFO] [stdout]     |                 ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_lower_nibble`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |     let mut creator = canvas.texture_creator();
[INFO] [stdout]    |         ----^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 34 |     let mut texture = creator
[INFO] [stdout]    |         ----^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/cpu.rs:622:9
[INFO] [stdout]     |
[INFO] [stdout] 622 |         unsafe {
[INFO] [stdout]     |         ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.05s
[INFO] running `Command { std: "docker" "inspect" "4be849b76b6a9a11b463f9c44d711c704bd4d034609dba2480a77888837699bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4be849b76b6a9a11b463f9c44d711c704bd4d034609dba2480a77888837699bb", kill_on_drop: false }`
[INFO] [stdout] 4be849b76b6a9a11b463f9c44d711c704bd4d034609dba2480a77888837699bb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 2d0bf2954076472635cef9104319bd252bc3f05a2e191778df949d9bd6843c39
[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" "2d0bf2954076472635cef9104319bd252bc3f05a2e191778df949d9bd6843c39", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `crate::utils::*`
[INFO] [stderr]  --> src/ops.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use crate::utils::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `sdl2::EventPump`
[INFO] [stderr]  --> src/main.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use sdl2::EventPump;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `sdl2::pixels::Color`
[INFO] [stderr]   --> src/main.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use sdl2::pixels::Color;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `sdl2::render::TextureCreator`
[INFO] [stderr]   --> src/main.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 | use sdl2::render::TextureCreator;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `keycode`
[INFO] [stderr]   --> src/main.rs:58:34
[INFO] [stderr]    |
[INFO] [stderr] 58 |                 Event::KeyDown { keycode, .. } => {
[INFO] [stderr]    |                                  ^^^^^^^ help: try ignoring the field: `keycode: _`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `keycode`
[INFO] [stderr]   --> src/main.rs:63:32
[INFO] [stderr]    |
[INFO] [stderr] 63 |                 Event::KeyUp { keycode, .. } => {
[INFO] [stderr]    |                                ^^^^^^^ help: try ignoring the field: `keycode: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `invaders_g`
[INFO] [stderr]   --> src/bus.rs:30:13
[INFO] [stderr]    |
[INFO] [stderr] 30 |         let invaders_g = fs::read("rom/invaders.g")
[INFO] [stderr]    |             ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_invaders_g`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `invaders_f`
[INFO] [stderr]   --> src/bus.rs:33:13
[INFO] [stderr]    |
[INFO] [stderr] 33 |         let invaders_f = fs::read("rom/invaders.f")
[INFO] [stderr]    |             ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_invaders_f`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `invaders_e`
[INFO] [stderr]   --> src/bus.rs:36:13
[INFO] [stderr]    |
[INFO] [stderr] 36 |         let invaders_e = fs::read("rom/invaders.e")
[INFO] [stderr]    |             ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_invaders_e`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lower_nibble`
[INFO] [stderr]    --> src/cpu.rs:738:17
[INFO] [stderr]     |
[INFO] [stderr] 738 |             let lower_nibble = (a_reg & 0xF) as Word;
[INFO] [stderr]     |                 ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_lower_nibble`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:33:9
[INFO] [stderr]    |
[INFO] [stderr] 33 |     let mut creator = canvas.texture_creator();
[INFO] [stderr]    |         ----^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:34:9
[INFO] [stderr]    |
[INFO] [stderr] 34 |     let mut texture = creator
[INFO] [stderr]    |         ----^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary `unsafe` block
[INFO] [stderr]    --> src/cpu.rs:622:9
[INFO] [stderr]     |
[INFO] [stderr] 622 |         unsafe {
[INFO] [stderr]     |         ^^^^^^ unnecessary `unsafe` block
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `space-invaders` (bin "space-invaders" test) generated 13 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/space_invaders-7d95bd42df7d1daf)
[INFO] [stdout] 
[INFO] [stdout] running 20 tests
[INFO] [stdout] test cpu::tests::test_do_complement_accumulator ... ok
[INFO] [stdout] test cpu::tests::test_do_decimal_adjust_accumulator ... ok
[INFO] [stdout] test cpu::tests::test_do_and ... ok
[INFO] [stdout] test cpu::tests::test_do_exchange ... ok
[INFO] [stdout] test cpu::tests::test_do_compare ... ok
[INFO] [stdout] test cpu::tests::test_do_decrement ... ok
[INFO] [stdout] test cpu::tests::test_do_increment ... ok
[INFO] [stdout] test cpu::tests::test_do_add ... ok
[INFO] [stdout] test cpu::tests::test_do_load_accumulator ... ok
[INFO] [stdout] test cpu::tests::test_do_rotate_left ... ok
[INFO] [stdout] test cpu::tests::test_do_double_add ... ok
[INFO] [stdout] test cpu::tests::test_do_xor ... ok
[INFO] [stdout] test cpu::tests::test_do_exchange_stack ... ok
[INFO] [stdout] test cpu::tests::test_do_move ... ok
[INFO] [stdout] test cpu::tests::test_do_rotate_right ... ok
[INFO] [stdout] test cpu::tests::test_do_increment_pair ... ok
[INFO] [stdout] test cpu::tests::test_do_or ... ok
[INFO] [stdout] test cpu::tests::test_do_store_accumulator ... ok
[INFO] [stdout] test cpu::tests::test_do_decrement_pair ... ok
[INFO] [stdout] test cpu::tests::test_do_sub ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 20 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.09s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "2d0bf2954076472635cef9104319bd252bc3f05a2e191778df949d9bd6843c39", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d0bf2954076472635cef9104319bd252bc3f05a2e191778df949d9bd6843c39", kill_on_drop: false }`
[INFO] [stdout] 2d0bf2954076472635cef9104319bd252bc3f05a2e191778df949d9bd6843c39