[INFO] updating cached repository foxmk/rustboy
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/foxmk/rustboy
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/foxmk/rustboy" "work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/foxmk/rustboy"`
[INFO] [stderr] Cloning into 'work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/foxmk/rustboy'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/foxmk/rustboy" "work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/gh/foxmk/rustboy"`
[INFO] [stderr] Cloning into 'work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/gh/foxmk/rustboy'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 32f594b0873f8196b9cc4174924de9700ef9b3bb
[INFO] sha for GitHub repo foxmk/rustboy: 32f594b0873f8196b9cc4174924de9700ef9b3bb
[INFO] validating manifest of foxmk/rustboy on toolchain master#a850a426491e14186af2250549bf41256b5938d2
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+a850a426491e14186af2250549bf41256b5938d2-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of foxmk/rustboy on toolchain try#06a150c7d11500b41499224f165e9de1de096768
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+06a150c7d11500b41499224f165e9de1de096768-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing foxmk/rustboy
[INFO] finished frobbing foxmk/rustboy
[INFO] frobbed toml for foxmk/rustboy written to work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/foxmk/rustboy/Cargo.toml
[INFO] started frobbing foxmk/rustboy
[INFO] finished frobbing foxmk/rustboy
[INFO] frobbed toml for foxmk/rustboy written to work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/gh/foxmk/rustboy/Cargo.toml
[INFO] crate foxmk/rustboy already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+a850a426491e14186af2250549bf41256b5938d2-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+06a150c7d11500b41499224f165e9de1de096768-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking foxmk/rustboy against master#a850a426491e14186af2250549bf41256b5938d2 for pr-60162
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60162/worker-4/master#a850a426491e14186af2250549bf41256b5938d2:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/foxmk/rustboy:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+a850a426491e14186af2250549bf41256b5938d2-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 9bf365c51572c13a9b21f6cc349611431089df1f967e37e1eb9e5f27ce8bd5ab
[INFO] running `"docker" "start" "-a" "9bf365c51572c13a9b21f6cc349611431089df1f967e37e1eb9e5f27ce8bd5ab"`
[INFO] [stderr]    Compiling minifb v0.11.2
[INFO] [stderr]     Checking vm v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `std::result::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 `std::result::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 `std::result::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 `std::result::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 `std::result::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 `std::result::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 `std::result::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 `std::result::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 `std::result::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 `std::result::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 `std::result::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 `std::result::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 `std::result::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 `std::result::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 `std::result::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 `std::result::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 `std::result::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 `std::result::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 `std::result::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 `std::result::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 `std::result::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 `std::result::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 `std::result::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 `std::result::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 `std::result::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 `std::result::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 `std::result::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 `std::result::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 `std::result::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: unused `std::result::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 `std::result::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 `std::result::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 `std::result::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 `std::result::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 `std::result::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 `std::result::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 `std::result::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 `std::result::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 `std::result::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 `std::result::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]     Finished dev [unoptimized + debuginfo] target(s) in 4.14s
[INFO] running `"docker" "inspect" "9bf365c51572c13a9b21f6cc349611431089df1f967e37e1eb9e5f27ce8bd5ab"`
[INFO] running `"docker" "rm" "-f" "9bf365c51572c13a9b21f6cc349611431089df1f967e37e1eb9e5f27ce8bd5ab"`
[INFO] [stdout] 9bf365c51572c13a9b21f6cc349611431089df1f967e37e1eb9e5f27ce8bd5ab