[INFO] cloning repository https://github.com/aburd/chip-8-interpreter-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/aburd/chip-8-interpreter-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faburd%2Fchip-8-interpreter-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faburd%2Fchip-8-interpreter-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2cd7e3797815952650b88dff34abd93d9ca491c5
[INFO] testing aburd/chip-8-interpreter-rust against 1.59.0 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faburd%2Fchip-8-interpreter-rust" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/aburd/chip-8-interpreter-rust on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/aburd/chip-8-interpreter-rust
[INFO] finished tweaking git repo https://github.com/aburd/chip-8-interpreter-rust
[INFO] tweaked toml for git repo https://github.com/aburd/chip-8-interpreter-rust written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/aburd/chip-8-interpreter-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1c2335d0989c5b580f2c10b5d5ae34a05f4114964854fc33b4796b565aabdc83
[INFO] running `Command { std: "docker" "start" "-a" "1c2335d0989c5b580f2c10b5d5ae34a05f4114964854fc33b4796b565aabdc83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1c2335d0989c5b580f2c10b5d5ae34a05f4114964854fc33b4796b565aabdc83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c2335d0989c5b580f2c10b5d5ae34a05f4114964854fc33b4796b565aabdc83", kill_on_drop: false }`
[INFO] [stdout] 1c2335d0989c5b580f2c10b5d5ae34a05f4114964854fc33b4796b565aabdc83
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 643543590b0773dda093894c06777e6156be2a1b66e2a0eb3706eac3df405aca
[INFO] running `Command { std: "docker" "start" "-a" "643543590b0773dda093894c06777e6156be2a1b66e2a0eb3706eac3df405aca", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]    Compiling regex-syntax v0.6.17
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling terminal_size v0.1.12
[INFO] [stderr]    Compiling termios v0.3.2
[INFO] [stderr]    Compiling regex v1.3.7
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling console v0.11.2
[INFO] [stderr]    Compiling chip8-interpreter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::path::Path`
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::path::Path;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/cpu/mod.rs:310:37
[INFO] [stdout]     |
[INFO] [stdout] 310 |             Instruction::KeyPressed(x) => {
[INFO] [stdout]     |                                     ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/cpu/mod.rs:314:39
[INFO] [stdout]     |
[INFO] [stdout] 314 |             Instruction::KeyUnpressed(x) => {
[INFO] [stdout]     |                                       ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `USERSPACE_END`
[INFO] [stdout]   --> src/cpu/mod.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | const USERSPACE_END: u16 = 0xFFF;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `CHIP8_FONTSET`
[INFO] [stdout]   --> src/cpu/mod.rs:67:1
[INFO] [stdout]    |
[INFO] [stdout] 67 | / const CHIP8_FONTSET: [u8; 80] = [
[INFO] [stdout] 68 | |     0xF0, 0x90, 0x90, 0x90, 0xF0, // ZERO
[INFO] [stdout] 69 | |     0x20, 0x60, 0x20, 0x20, 0x70, // ONE
[INFO] [stdout] 70 | |     0xF0, 0x10, 0xF0, 0x80, 0xF0, // TWO,
[INFO] [stdout] ...  |
[INFO] [stdout] 83 | |     0xF0, 0x80, 0xF0, 0x80, 0x80, // F
[INFO] [stdout] 84 | | ];
[INFO] [stdout]    | |__^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `keys`
[INFO] [stdout]   --> src/cpu/mod.rs:94:5
[INFO] [stdout]    |
[INFO] [stdout] 94 |     keys: Keys,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `initialize`
[INFO] [stdout]    --> src/cpu/mod.rs:121:12
[INFO] [stdout]     |
[INFO] [stdout] 121 |     pub fn initialize(&mut self) {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_memory`
[INFO] [stdout]    --> src/cpu/mod.rs:153:12
[INFO] [stdout]     |
[INFO] [stdout] 153 |     pub fn get_memory(&self, idx: usize) -> u8 {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/display.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     term.write_str(&frame);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/display.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     term.clear_last_lines(h);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.22s
[INFO] running `Command { std: "docker" "inspect" "643543590b0773dda093894c06777e6156be2a1b66e2a0eb3706eac3df405aca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "643543590b0773dda093894c06777e6156be2a1b66e2a0eb3706eac3df405aca", kill_on_drop: false }`
[INFO] [stdout] 643543590b0773dda093894c06777e6156be2a1b66e2a0eb3706eac3df405aca
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7efeef7b2cbc7ce7ec6dcb83dc7ec1e8198b8ecd822739221195085bd29d3c15
[INFO] running `Command { std: "docker" "start" "-a" "7efeef7b2cbc7ce7ec6dcb83dc7ec1e8198b8ecd822739221195085bd29d3c15", kill_on_drop: false }`
[INFO] [stderr]    Compiling chip8-interpreter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::path::Path`
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::path::Path;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/cpu/mod.rs:310:37
[INFO] [stdout]     |
[INFO] [stdout] 310 |             Instruction::KeyPressed(x) => {
[INFO] [stdout]     |                                     ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/cpu/mod.rs:314:39
[INFO] [stdout]     |
[INFO] [stdout] 314 |             Instruction::KeyUnpressed(x) => {
[INFO] [stdout]     |                                       ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `USERSPACE_END`
[INFO] [stdout]   --> src/cpu/mod.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | const USERSPACE_END: u16 = 0xFFF;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `CHIP8_FONTSET`
[INFO] [stdout]   --> src/cpu/mod.rs:67:1
[INFO] [stdout]    |
[INFO] [stdout] 67 | / const CHIP8_FONTSET: [u8; 80] = [
[INFO] [stdout] 68 | |     0xF0, 0x90, 0x90, 0x90, 0xF0, // ZERO
[INFO] [stdout] 69 | |     0x20, 0x60, 0x20, 0x20, 0x70, // ONE
[INFO] [stdout] 70 | |     0xF0, 0x10, 0xF0, 0x80, 0xF0, // TWO,
[INFO] [stdout] ...  |
[INFO] [stdout] 83 | |     0xF0, 0x80, 0xF0, 0x80, 0x80, // F
[INFO] [stdout] 84 | | ];
[INFO] [stdout]    | |__^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `keys`
[INFO] [stdout]   --> src/cpu/mod.rs:94:5
[INFO] [stdout]    |
[INFO] [stdout] 94 |     keys: Keys,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `initialize`
[INFO] [stdout]    --> src/cpu/mod.rs:121:12
[INFO] [stdout]     |
[INFO] [stdout] 121 |     pub fn initialize(&mut self) {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/display.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     term.write_str(&frame);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/display.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     term.clear_last_lines(h);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.91s
[INFO] running `Command { std: "docker" "inspect" "7efeef7b2cbc7ce7ec6dcb83dc7ec1e8198b8ecd822739221195085bd29d3c15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7efeef7b2cbc7ce7ec6dcb83dc7ec1e8198b8ecd822739221195085bd29d3c15", kill_on_drop: false }`
[INFO] [stdout] 7efeef7b2cbc7ce7ec6dcb83dc7ec1e8198b8ecd822739221195085bd29d3c15
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 204b66e9504d16d6c385f62c2c122e752fc9ace8ab5e42c85a8295288438eda1
[INFO] running `Command { std: "docker" "start" "-a" "204b66e9504d16d6c385f62c2c122e752fc9ace8ab5e42c85a8295288438eda1", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: unused import: `std::path::Path`
[INFO] [stdout] running 3 tests
[INFO] [stderr]  --> src/main.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::path::Path;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]    --> src/cpu/mod.rs:310:37
[INFO] [stderr]     |
[INFO] [stderr] 310 |             Instruction::KeyPressed(x) => {
[INFO] [stderr]     |                                     ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]    --> src/cpu/mod.rs:314:39
[INFO] [stderr]     |
[INFO] [stderr] 314 |             Instruction::KeyUnpressed(x) => {
[INFO] [stderr]     |                                       ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `USERSPACE_END`
[INFO] [stderr]   --> src/cpu/mod.rs:10:1
[INFO] [stderr]    |
[INFO] [stderr] 10 | const USERSPACE_END: u16 = 0xFFF;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `CHIP8_FONTSET`
[INFO] [stderr]   --> src/cpu/mod.rs:67:1
[INFO] [stderr]    |
[INFO] [stderr] 67 | / const CHIP8_FONTSET: [u8; 80] = [
[INFO] [stderr] 68 | |     0xF0, 0x90, 0x90, 0x90, 0xF0, // ZERO
[INFO] [stderr] 69 | |     0x20, 0x60, 0x20, 0x20, 0x70, // ONE
[INFO] [stderr] 70 | |     0xF0, 0x10, 0xF0, 0x80, 0xF0, // TWO,
[INFO] [stderr] ...  |
[INFO] [stderr] 83 | |     0xF0, 0x80, 0xF0, 0x80, 0x80, // F
[INFO] [stderr] 84 | | ];
[INFO] [stderr]    | |__^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `keys`
[INFO] [stderr]   --> src/cpu/mod.rs:94:5
[INFO] [stderr]    |
[INFO] [stderr] 94 |     keys: Keys,
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `initialize`
[INFO] [stderr]    --> src/cpu/mod.rs:121:12
[INFO] [stderr]     |
[INFO] [stderr] 121 |     pub fn initialize(&mut self) {
[INFO] [stderr]     |            ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/display.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     term.write_str(&frame);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/display.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     term.clear_last_lines(h);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: `chip8-interpreter` (bin "chip8-interpreter" test) generated 9 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/chip8_interpreter-1a5b87d0d37691a1)
[INFO] [stdout] test cpu::test_keys_initialize_to_false ... ok
[INFO] [stdout] test cpu::test_initial_mem_location_is_0x200 ... ok
[INFO] [stdout] test cpu::test_opens_rom_correctly ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "204b66e9504d16d6c385f62c2c122e752fc9ace8ab5e42c85a8295288438eda1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "204b66e9504d16d6c385f62c2c122e752fc9ace8ab5e42c85a8295288438eda1", kill_on_drop: false }`
[INFO] [stdout] 204b66e9504d16d6c385f62c2c122e752fc9ace8ab5e42c85a8295288438eda1