[INFO] cloning repository https://github.com/foxmk/rustboy
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/foxmk/rustboy" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffoxmk%2Frustboy", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffoxmk%2Frustboy'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 32f594b0873f8196b9cc4174924de9700ef9b3bb
[INFO] testing foxmk/rustboy against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffoxmk%2Frustboy" "/workspace/builds/worker-62/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-62/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/foxmk/rustboy on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/foxmk/rustboy
[INFO] finished tweaking git repo https://github.com/foxmk/rustboy
[INFO] tweaked toml for git repo https://github.com/foxmk/rustboy written to /workspace/builds/worker-62/source/Cargo.toml
[INFO] crate git repo https://github.com/foxmk/rustboy already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "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-62/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-62/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ef892e013bcf9dd582aec051d0b02fdbbc6749ea758505a624cbacf093902066
[INFO] running `Command { std: "docker" "start" "-a" "ef892e013bcf9dd582aec051d0b02fdbbc6749ea758505a624cbacf093902066", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ef892e013bcf9dd582aec051d0b02fdbbc6749ea758505a624cbacf093902066", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef892e013bcf9dd582aec051d0b02fdbbc6749ea758505a624cbacf093902066", kill_on_drop: false }`
[INFO] [stdout] ef892e013bcf9dd582aec051d0b02fdbbc6749ea758505a624cbacf093902066
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-62/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-62/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bd0742c009e2341a9cff933c18e0d09f16f877f967280bcebfc073f9a83c62a8
[INFO] running `Command { std: "docker" "start" "-a" "bd0742c009e2341a9cff933c18e0d09f16f877f967280bcebfc073f9a83c62a8", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.45
[INFO] [stderr]    Compiling pkg-config v0.3.14
[INFO] [stderr]    Compiling cc v1.0.25
[INFO] [stderr]    Compiling lazy_static v0.2.11
[INFO] [stderr]    Compiling x11-dl v2.14.0
[INFO] [stderr]    Compiling minifb v0.11.2
[INFO] [stderr]    Compiling time v0.1.40
[INFO] [stderr]    Compiling vm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/ppu.rs:304:28
[INFO] [stdout]     |
[INFO] [stdout] 304 |             PPU::VRAM_START...PPU::VRAM_END => {
[INFO] [stdout]     |                            ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/ppu.rs:313:27
[INFO] [stdout]     |
[INFO] [stdout] 313 |             PPU::OAM_START...PPU::OAM_END => {
[INFO] [stdout]     |                           ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/ppu.rs:340:28
[INFO] [stdout]     |
[INFO] [stdout] 340 |             PPU::VRAM_START...PPU::VRAM_END => {
[INFO] [stdout]     |                            ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/ppu.rs:349:27
[INFO] [stdout]     |
[INFO] [stdout] 349 |             PPU::OAM_START...PPU::OAM_END => {
[INFO] [stdout]     |                           ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:45:5
[INFO] [stdout]    |
[INFO] [stdout] 45 |     cpu.borrow_mut().step();
[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/main.rs:46:5
[INFO] [stdout]    |
[INFO] [stdout] 46 |     ppu.borrow_mut().step();
[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: unused `Result` that must be used
[INFO] [stdout]    --> src/cpu.rs:132:17
[INFO] [stdout]     |
[INFO] [stdout] 132 |                 self.exec_op(post_op);
[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: unused `Result` that must be used
[INFO] [stdout]    --> src/cpu.rs:723:17
[INFO] [stdout]     |
[INFO] [stdout] 723 |                 byte.set_bit(0, value as usize);
[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: unused `Result` that must be used
[INFO] [stdout]    --> src/cpu.rs:728:17
[INFO] [stdout]     |
[INFO] [stdout] 728 |                 byte.set_bit(0, value as usize);
[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: unused `Result` that must be used
[INFO] [stdout]    --> src/cpu.rs:733:17
[INFO] [stdout]     |
[INFO] [stdout] 733 |                 byte.set_bit(0, value as usize);
[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: unused `Result` that must be used
[INFO] [stdout]    --> src/cpu.rs:738:17
[INFO] [stdout]     |
[INFO] [stdout] 738 |                 byte.set_bit(0, value as usize);
[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: unused `Result` that must be used
[INFO] [stdout]    --> src/ppu.rs:197:17
[INFO] [stdout]     |
[INFO] [stdout] 197 |                 self.stat.set_bit(PPU::MODE_TRANSFER, true as usize);
[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: unused `Result` that must be used
[INFO] [stdout]    --> src/ppu.rs:198:17
[INFO] [stdout]     |
[INFO] [stdout] 198 |                 self.stat.set_bit(PPU::MODE, false as usize);
[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: unused `Result` that must be used
[INFO] [stdout]    --> src/ppu.rs:202:17
[INFO] [stdout]     |
[INFO] [stdout] 202 |                 self.stat.set_bit(PPU::MODE_TRANSFER, true as usize);
[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: unused `Result` that must be used
[INFO] [stdout]    --> src/ppu.rs:203:17
[INFO] [stdout]     |
[INFO] [stdout] 203 |                 self.stat.set_bit(PPU::MODE, true as usize);
[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: unused `Result` that must be used
[INFO] [stdout]    --> src/ppu.rs:207:17
[INFO] [stdout]     |
[INFO] [stdout] 207 |                 self.stat.set_bit(PPU::MODE_TRANSFER, false as usize);
[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: unused `Result` that must be used
[INFO] [stdout]    --> src/ppu.rs:208:17
[INFO] [stdout]     |
[INFO] [stdout] 208 |                 self.stat.set_bit(PPU::MODE, false as usize);
[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: unused `Result` that must be used
[INFO] [stdout]    --> src/ppu.rs:212:17
[INFO] [stdout]     |
[INFO] [stdout] 212 |                 self.stat.set_bit(PPU::MODE_TRANSFER, false as usize);
[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: unused `Result` that must be used
[INFO] [stdout]    --> src/ppu.rs:213:17
[INFO] [stdout]     |
[INFO] [stdout] 213 |                 self.stat.set_bit(PPU::MODE, true as usize);
[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: unused `Result` that must be used
[INFO] [stdout]    --> src/ppu.rs:275:13
[INFO] [stdout]     |
[INFO] [stdout] 275 |             InterruptController::request(self.memory.borrow_mut(), Interrupt::LcdStat);
[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: unused `Result` that must be used
[INFO] [stdout]   --> src/interrupts.rs:72:9
[INFO] [stdout]    |
[INFO] [stdout] 72 | /         match int {
[INFO] [stdout] 73 | |             Interrupt::VBlank => flags_to_save.set_bit(0, 1),
[INFO] [stdout] 74 | |             Interrupt::LcdStat => flags_to_save.set_bit(1, 1),
[INFO] [stdout] 75 | |             Interrupt::Timer => flags_to_save.set_bit(2, 1),
[INFO] [stdout] 76 | |             Interrupt::Serial => flags_to_save.set_bit(3, 1),
[INFO] [stdout] 77 | |             Interrupt::Joystick => flags_to_save.set_bit(4, 1),
[INFO] [stdout] 78 | |         };
[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: unused `Result` that must be used
[INFO] [stdout]   --> src/interrupts.rs:86:9
[INFO] [stdout]    |
[INFO] [stdout] 86 | /         match int {
[INFO] [stdout] 87 | |             Interrupt::VBlank => flags_to_save.set_bit(0, 0),
[INFO] [stdout] 88 | |             Interrupt::LcdStat => flags_to_save.set_bit(1, 0),
[INFO] [stdout] 89 | |             Interrupt::Timer => flags_to_save.set_bit(2, 0),
[INFO] [stdout] 90 | |             Interrupt::Serial => flags_to_save.set_bit(3, 0),
[INFO] [stdout] 91 | |             Interrupt::Joystick => flags_to_save.set_bit(4, 0),
[INFO] [stdout] 92 | |         };
[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: 22 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 22.36s
[INFO] running `Command { std: "docker" "inspect" "bd0742c009e2341a9cff933c18e0d09f16f877f967280bcebfc073f9a83c62a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd0742c009e2341a9cff933c18e0d09f16f877f967280bcebfc073f9a83c62a8", kill_on_drop: false }`
[INFO] [stdout] bd0742c009e2341a9cff933c18e0d09f16f877f967280bcebfc073f9a83c62a8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-62/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-62/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3a0e6ca744d397bf5ba7eb7c8eb61c25a8331e8115e7c0fa63a584e4ecbc0564
[INFO] running `Command { std: "docker" "start" "-a" "3a0e6ca744d397bf5ba7eb7c8eb61c25a8331e8115e7c0fa63a584e4ecbc0564", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling vm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/ppu.rs:304:28
[INFO] [stdout]     |
[INFO] [stdout] 304 |             PPU::VRAM_START...PPU::VRAM_END => {
[INFO] [stdout]     |                            ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/ppu.rs:313:27
[INFO] [stdout]     |
[INFO] [stdout] 313 |             PPU::OAM_START...PPU::OAM_END => {
[INFO] [stdout]     |                           ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/ppu.rs:340:28
[INFO] [stdout]     |
[INFO] [stdout] 340 |             PPU::VRAM_START...PPU::VRAM_END => {
[INFO] [stdout]     |                            ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/ppu.rs:349:27
[INFO] [stdout]     |
[INFO] [stdout] 349 |             PPU::OAM_START...PPU::OAM_END => {
[INFO] [stdout]     |                           ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:45:5
[INFO] [stdout]    |
[INFO] [stdout] 45 |     cpu.borrow_mut().step();
[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/main.rs:46:5
[INFO] [stdout]    |
[INFO] [stdout] 46 |     ppu.borrow_mut().step();
[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: unused `Result` that must be used
[INFO] [stdout]    --> src/cpu.rs:132:17
[INFO] [stdout]     |
[INFO] [stdout] 132 |                 self.exec_op(post_op);
[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: unused `Result` that must be used
[INFO] [stdout]    --> src/cpu.rs:723:17
[INFO] [stdout]     |
[INFO] [stdout] 723 |                 byte.set_bit(0, value as usize);
[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: unused `Result` that must be used
[INFO] [stdout]    --> src/cpu.rs:728:17
[INFO] [stdout]     |
[INFO] [stdout] 728 |                 byte.set_bit(0, value as usize);
[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: unused `Result` that must be used
[INFO] [stdout]    --> src/cpu.rs:733:17
[INFO] [stdout]     |
[INFO] [stdout] 733 |                 byte.set_bit(0, value as usize);
[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: unused `Result` that must be used
[INFO] [stdout]    --> src/cpu.rs:738:17
[INFO] [stdout]     |
[INFO] [stdout] 738 |                 byte.set_bit(0, value as usize);
[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: unused `Result` that must be used
[INFO] [stdout]    --> src/ppu.rs:197:17
[INFO] [stdout]     |
[INFO] [stdout] 197 |                 self.stat.set_bit(PPU::MODE_TRANSFER, true as usize);
[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: unused `Result` that must be used
[INFO] [stdout]    --> src/ppu.rs:198:17
[INFO] [stdout]     |
[INFO] [stdout] 198 |                 self.stat.set_bit(PPU::MODE, false as usize);
[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: unused `Result` that must be used
[INFO] [stdout]    --> src/ppu.rs:202:17
[INFO] [stdout]     |
[INFO] [stdout] 202 |                 self.stat.set_bit(PPU::MODE_TRANSFER, true as usize);
[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: unused `Result` that must be used
[INFO] [stdout]    --> src/ppu.rs:203:17
[INFO] [stdout]     |
[INFO] [stdout] 203 |                 self.stat.set_bit(PPU::MODE, true as usize);
[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: unused `Result` that must be used
[INFO] [stdout]    --> src/ppu.rs:207:17
[INFO] [stdout]     |
[INFO] [stdout] 207 |                 self.stat.set_bit(PPU::MODE_TRANSFER, false as usize);
[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: unused `Result` that must be used
[INFO] [stdout]    --> src/ppu.rs:208:17
[INFO] [stdout]     |
[INFO] [stdout] 208 |                 self.stat.set_bit(PPU::MODE, false as usize);
[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: unused `Result` that must be used
[INFO] [stdout]    --> src/ppu.rs:212:17
[INFO] [stdout]     |
[INFO] [stdout] 212 |                 self.stat.set_bit(PPU::MODE_TRANSFER, false as usize);
[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: unused `Result` that must be used
[INFO] [stdout]    --> src/ppu.rs:213:17
[INFO] [stdout]     |
[INFO] [stdout] 213 |                 self.stat.set_bit(PPU::MODE, true as usize);
[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: unused `Result` that must be used
[INFO] [stdout]    --> src/ppu.rs:275:13
[INFO] [stdout]     |
[INFO] [stdout] 275 |             InterruptController::request(self.memory.borrow_mut(), Interrupt::LcdStat);
[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: unused `Result` that must be used
[INFO] [stdout]   --> src/interrupts.rs:72:9
[INFO] [stdout]    |
[INFO] [stdout] 72 | /         match int {
[INFO] [stdout] 73 | |             Interrupt::VBlank => flags_to_save.set_bit(0, 1),
[INFO] [stdout] 74 | |             Interrupt::LcdStat => flags_to_save.set_bit(1, 1),
[INFO] [stdout] 75 | |             Interrupt::Timer => flags_to_save.set_bit(2, 1),
[INFO] [stdout] 76 | |             Interrupt::Serial => flags_to_save.set_bit(3, 1),
[INFO] [stdout] 77 | |             Interrupt::Joystick => flags_to_save.set_bit(4, 1),
[INFO] [stdout] 78 | |         };
[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: unused `Result` that must be used
[INFO] [stdout]   --> src/interrupts.rs:86:9
[INFO] [stdout]    |
[INFO] [stdout] 86 | /         match int {
[INFO] [stdout] 87 | |             Interrupt::VBlank => flags_to_save.set_bit(0, 0),
[INFO] [stdout] 88 | |             Interrupt::LcdStat => flags_to_save.set_bit(1, 0),
[INFO] [stdout] 89 | |             Interrupt::Timer => flags_to_save.set_bit(2, 0),
[INFO] [stdout] 90 | |             Interrupt::Serial => flags_to_save.set_bit(3, 0),
[INFO] [stdout] 91 | |             Interrupt::Joystick => flags_to_save.set_bit(4, 0),
[INFO] [stdout] 92 | |         };
[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: unused `Result` that must be used
[INFO] [stdout]    --> src/cpu.rs:775:9
[INFO] [stdout]     |
[INFO] [stdout] 775 |         cpu.step();
[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: unused `Result` that must be used
[INFO] [stdout]    --> src/memory.rs:201:9
[INFO] [stdout]     |
[INFO] [stdout] 201 |         space.write(0x0020, 0xFF);
[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: unused `Result` that must be used
[INFO] [stdout]    --> src/memory.rs:216:9
[INFO] [stdout]     |
[INFO] [stdout] 216 |         space.write(0x0020, 0xFF);
[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: unused `Result` that must be used
[INFO] [stdout]    --> src/memory.rs:220:9
[INFO] [stdout]     |
[INFO] [stdout] 220 |         space.write(0x0120, 0xFE);
[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: 26 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 4.94s
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/vm-b2f7f28d5ca5295a)
[INFO] running `Command { std: "docker" "inspect" "3a0e6ca744d397bf5ba7eb7c8eb61c25a8331e8115e7c0fa63a584e4ecbc0564", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a0e6ca744d397bf5ba7eb7c8eb61c25a8331e8115e7c0fa63a584e4ecbc0564", kill_on_drop: false }`
[INFO] [stdout] 3a0e6ca744d397bf5ba7eb7c8eb61c25a8331e8115e7c0fa63a584e4ecbc0564
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-62/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-62/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] cf903e2203b1e1948669f50d15619b3eba0d47c81d69f8ce26243397b6a88157
[INFO] running `Command { std: "docker" "start" "-a" "cf903e2203b1e1948669f50d15619b3eba0d47c81d69f8ce26243397b6a88157", kill_on_drop: false }`
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/ppu.rs:304:28
[INFO] [stderr]     |
[INFO] [stderr] 304 |             PPU::VRAM_START...PPU::VRAM_END => {
[INFO] [stderr]     |                            ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/ppu.rs:313:27
[INFO] [stderr]     |
[INFO] [stderr] 313 |             PPU::OAM_START...PPU::OAM_END => {
[INFO] [stderr]     |                           ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/ppu.rs:340:28
[INFO] [stderr]     |
[INFO] [stderr] 340 |             PPU::VRAM_START...PPU::VRAM_END => {
[INFO] [stderr]     |                            ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/ppu.rs:349:27
[INFO] [stderr]     |
[INFO] [stderr] 349 |             PPU::OAM_START...PPU::OAM_END => {
[INFO] [stderr]     |                           ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/main.rs:45:5
[INFO] [stderr]    |
[INFO] [stderr] 45 |     cpu.borrow_mut().step();
[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/main.rs:46:5
[INFO] [stderr]    |
[INFO] [stderr] 46 |     ppu.borrow_mut().step();
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[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/cpu.rs:132:17
[INFO] [stderr]     |
[INFO] [stderr] 132 |                 self.exec_op(post_op);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[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/cpu.rs:723:17
[INFO] [stderr]     |
[INFO] [stderr] 723 |                 byte.set_bit(0, value as usize);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[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/cpu.rs:728:17
[INFO] [stderr]     |
[INFO] [stderr] 728 |                 byte.set_bit(0, value as usize);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[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/cpu.rs:733:17
[INFO] [stderr]     |
[INFO] [stderr] 733 |                 byte.set_bit(0, value as usize);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[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/cpu.rs:738:17
[INFO] [stderr]     |
[INFO] [stderr] 738 |                 byte.set_bit(0, value as usize);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[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/ppu.rs:197:17
[INFO] [stderr]     |
[INFO] [stderr] 197 |                 self.stat.set_bit(PPU::MODE_TRANSFER, true as usize);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[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/ppu.rs:198:17
[INFO] [stderr]     |
[INFO] [stderr] 198 |                 self.stat.set_bit(PPU::MODE, false as usize);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[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/ppu.rs:202:17
[INFO] [stderr]     |
[INFO] [stderr] 202 |                 self.stat.set_bit(PPU::MODE_TRANSFER, true as usize);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[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/ppu.rs:203:17
[INFO] [stderr]     |
[INFO] [stderr] 203 |                 self.stat.set_bit(PPU::MODE, true as usize);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[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/ppu.rs:207:17
[INFO] [stderr]     |
[INFO] [stderr] 207 |                 self.stat.set_bit(PPU::MODE_TRANSFER, false as usize);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[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/ppu.rs:208:17
[INFO] [stderr]     |
[INFO] [stderr] 208 |                 self.stat.set_bit(PPU::MODE, false as usize);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[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/ppu.rs:212:17
[INFO] [stderr]     |
[INFO] [stderr] 212 |                 self.stat.set_bit(PPU::MODE_TRANSFER, false as usize);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[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/ppu.rs:213:17
[INFO] [stderr]     |
[INFO] [stderr] 213 |                 self.stat.set_bit(PPU::MODE, true as usize);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[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/ppu.rs:275:13
[INFO] [stderr]     |
[INFO] [stderr] 275 |             InterruptController::request(self.memory.borrow_mut(), Interrupt::LcdStat);
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[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/interrupts.rs:72:9
[INFO] [stderr]    |
[INFO] [stderr] 72 | /         match int {
[INFO] [stderr] 73 | |             Interrupt::VBlank => flags_to_save.set_bit(0, 1),
[INFO] [stderr] 74 | |             Interrupt::LcdStat => flags_to_save.set_bit(1, 1),
[INFO] [stderr] 75 | |             Interrupt::Timer => flags_to_save.set_bit(2, 1),
[INFO] [stderr] 76 | |             Interrupt::Serial => flags_to_save.set_bit(3, 1),
[INFO] [stderr] 77 | |             Interrupt::Joystick => flags_to_save.set_bit(4, 1),
[INFO] [stderr] 78 | |         };
[INFO] [stderr]    | |__________^
[INFO] [stderr]    |
[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/interrupts.rs:86:9
[INFO] [stderr]    |
[INFO] [stderr] 86 | /         match int {
[INFO] [stderr] 87 | |             Interrupt::VBlank => flags_to_save.set_bit(0, 0),
[INFO] [stderr] 88 | |             Interrupt::LcdStat => flags_to_save.set_bit(1, 0),
[INFO] [stderr] 89 | |             Interrupt::Timer => flags_to_save.set_bit(2, 0),
[INFO] [stderr] 90 | |             Interrupt::Serial => flags_to_save.set_bit(3, 0),
[INFO] [stderr] 91 | |             Interrupt::Joystick => flags_to_save.set_bit(4, 0),
[INFO] [stderr] 92 | |         };
[INFO] [stderr]    | |__________^
[INFO] [stderr]    |
[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/cpu.rs:775:9
[INFO] [stderr]     |
[INFO] [stderr] 775 |         cpu.step();
[INFO] [stderr]     |         ^^^^^^^^^^^
[INFO] [stderr]     |
[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/memory.rs:201:9
[INFO] [stderr]     |
[INFO] [stderr] 201 |         space.write(0x0020, 0xFF);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[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/memory.rs:216:9
[INFO] [stderr]     |
[INFO] [stderr] 216 |         space.write(0x0020, 0xFF);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[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/memory.rs:220:9
[INFO] [stderr]     |
[INFO] [stderr] 220 |         space.write(0x0120, 0xFE);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: `vm` (bin "vm" test) generated 26 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/vm-b2f7f28d5ca5295a)
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test cpu::test::should_increment_pc ... ok
[INFO] [stdout] test cpu::test::simple_addition ... ok
[INFO] [stdout] test memory::test::empty_space ... ok
[INFO] [stdout] test memory::test::multiple_storage ... ok
[INFO] [stdout] test memory::test::out_of_bounds ... ok
[INFO] [stdout] test memory::test::register_space ... ok
[INFO] [stdout] test memory::test::write_byte ... ok
[INFO] [stdout] test util::test::should_work ... ok
[INFO] [stdout] test util::test::should_work_2 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "cf903e2203b1e1948669f50d15619b3eba0d47c81d69f8ce26243397b6a88157", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf903e2203b1e1948669f50d15619b3eba0d47c81d69f8ce26243397b6a88157", kill_on_drop: false }`
[INFO] [stdout] cf903e2203b1e1948669f50d15619b3eba0d47c81d69f8ce26243397b6a88157