[INFO] cloning repository https://github.com/val500/rustboy
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/val500/rustboy" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fval500%2Frustboy", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fval500%2Frustboy'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e9e1d53a8f06308a27b66be756cbe98be20ae6a1
[INFO] checking val500/rustboy against master#36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923 for pr-81863
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fval500%2Frustboy" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/val500/rustboy on toolchain 36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/val500/rustboy
[INFO] finished tweaking git repo https://github.com/val500/rustboy
[INFO] tweaked toml for git repo https://github.com/val500/rustboy written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/val500/rustboy already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: the lock file /workspace/builds/worker-1/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 9471a5b8e3b4130c51949928d0b035fa844ada11c8997a4c35b8389846e6669e
[INFO] running `Command { std: "docker" "start" "-a" "9471a5b8e3b4130c51949928d0b035fa844ada11c8997a4c35b8389846e6669e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9471a5b8e3b4130c51949928d0b035fa844ada11c8997a4c35b8389846e6669e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9471a5b8e3b4130c51949928d0b035fa844ada11c8997a4c35b8389846e6669e", kill_on_drop: false }`
[INFO] [stdout] 9471a5b8e3b4130c51949928d0b035fa844ada11c8997a4c35b8389846e6669e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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=forbid" "-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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4e677e53fad3781ab5d83597efa39dc668da50116b9f1472c055e3f66f235975
[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" "4e677e53fad3781ab5d83597efa39dc668da50116b9f1472c055e3f66f235975", kill_on_drop: false }`
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]     Checking queue v0.3.1
[INFO] [stderr]    Compiling sdl2-sys v0.34.3
[INFO] [stderr]    Compiling sdl2 v0.34.3
[INFO] [stderr]     Checking rustboy v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Mutex`
[INFO] [stdout]  --> src/cpu.rs:7:17
[INFO] [stdout]   |
[INFO] [stdout] 7 |     sync::{Arc, Mutex, RwLock},
[INFO] [stdout]   |                 ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Mutex`, `time::Duration`
[INFO] [stdout]  --> src/ppu.rs:8:17
[INFO] [stdout]   |
[INFO] [stdout] 8 |     sync::{Arc, Mutex, RwLock},
[INFO] [stdout]   |                 ^^^^^
[INFO] [stdout] 9 |     time::Duration,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Mutex`
[INFO] [stdout]  --> src/cpu.rs:7:17
[INFO] [stdout]   |
[INFO] [stdout] 7 |     sync::{Arc, Mutex, RwLock},
[INFO] [stdout]   |                 ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Mutex`, `time::Duration`
[INFO] [stdout]  --> src/ppu.rs:8:17
[INFO] [stdout]   |
[INFO] [stdout] 8 |     sync::{Arc, Mutex, RwLock},
[INFO] [stdout]   |                 ^^^^^
[INFO] [stdout] 9 |     time::Duration,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `ei` is never read
[INFO] [stdout]   --> src/cpu.rs:53:7
[INFO] [stdout]    |
[INFO] [stdout] 53 |             ei = false;
[INFO] [stdout]    |             ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `di` is never read
[INFO] [stdout]   --> src/cpu.rs:56:7
[INFO] [stdout]    |
[INFO] [stdout] 56 |             di = false;
[INFO] [stdout]    |             ^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `reg_file`
[INFO] [stdout]     --> src/instructions.rs:2082:5
[INFO] [stdout]      |
[INFO] [stdout] 2082 |     reg_file: &mut RegFile,
[INFO] [stdout]      |     ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_reg_file`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cpu`
[INFO] [stdout]     --> src/instructions.rs:2083:5
[INFO] [stdout]      |
[INFO] [stdout] 2083 |     cpu: &mut CPU,
[INFO] [stdout]      |     ^^^ help: if this is intentional, prefix it with an underscore: `_cpu`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]     --> src/instructions.rs:2084:5
[INFO] [stdout]      |
[INFO] [stdout] 2084 |     n: u8,
[INFO] [stdout]      |     ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ppu_clk_recv`
[INFO] [stdout]   --> src/ppu.rs:35:24
[INFO] [stdout]    |
[INFO] [stdout] 35 |     let (ppu_clk_send, ppu_clk_recv) = channel();
[INFO] [stdout]    |                        ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_ppu_clk_recv`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ppu_lock`
[INFO] [stdout]   --> src/ppu.rs:34:20
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub fn ppu_execute(ppu_lock: Arc<RwLock<PPU>>, clock_rx: Receiver<u8>) {
[INFO] [stdout]    |                    ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_ppu_lock`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `ei` is never read
[INFO] [stdout]   --> src/cpu.rs:53:7
[INFO] [stdout]    |
[INFO] [stdout] 53 |             ei = false;
[INFO] [stdout]    |             ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `di` is never read
[INFO] [stdout]   --> src/cpu.rs:56:7
[INFO] [stdout]    |
[INFO] [stdout] 56 |             di = false;
[INFO] [stdout]    |             ^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `reg_file`
[INFO] [stdout]     --> src/instructions.rs:2082:5
[INFO] [stdout]      |
[INFO] [stdout] 2082 |     reg_file: &mut RegFile,
[INFO] [stdout]      |     ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_reg_file`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cpu`
[INFO] [stdout]     --> src/instructions.rs:2083:5
[INFO] [stdout]      |
[INFO] [stdout] 2083 |     cpu: &mut CPU,
[INFO] [stdout]      |     ^^^ help: if this is intentional, prefix it with an underscore: `_cpu`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]     --> src/instructions.rs:2084:5
[INFO] [stdout]      |
[INFO] [stdout] 2084 |     n: u8,
[INFO] [stdout]      |     ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ppu_clk_recv`
[INFO] [stdout]   --> src/ppu.rs:35:24
[INFO] [stdout]    |
[INFO] [stdout] 35 |     let (ppu_clk_send, ppu_clk_recv) = channel();
[INFO] [stdout]    |                        ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_ppu_clk_recv`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ppu_lock`
[INFO] [stdout]   --> src/ppu.rs:34:20
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub fn ppu_execute(ppu_lock: Arc<RwLock<PPU>>, clock_rx: Receiver<u8>) {
[INFO] [stdout]    |                    ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_ppu_lock`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/instructions.rs:2087:9
[INFO] [stdout]      |
[INFO] [stdout] 2087 |     let mut pass_to_next_stage = StagePassThrough::default();
[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: the feature `unsigned_abs` has been stable since 1.51.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/main.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(unsigned_abs)]
[INFO] [stdout]   |            ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/instructions.rs:2087:9
[INFO] [stdout]      |
[INFO] [stdout] 2087 |     let mut pass_to_next_stage = StagePassThrough::default();
[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: the feature `unsigned_abs` has been stable since 1.51.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/main.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(unsigned_abs)]
[INFO] [stdout]   |            ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/cpu.rs:46:13
[INFO] [stdout]    |
[INFO] [stdout] 46 |             clock_rx.recv();
[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/ppu.rs:83:9
[INFO] [stdout]    |
[INFO] [stdout] 83 | /         self.pixel_fifo
[INFO] [stdout] 84 | |             .queue(PPU::get_color(tile_high >> 6, palette));
[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:85:9
[INFO] [stdout]    |
[INFO] [stdout] 85 | /         self.pixel_fifo
[INFO] [stdout] 86 | |             .queue(PPU::get_color((tile_high & 0x30) >> 6, palette));
[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:87:9
[INFO] [stdout]    |
[INFO] [stdout] 87 | /         self.pixel_fifo
[INFO] [stdout] 88 | |             .queue(PPU::get_color((tile_high & 0x0C) >> 6, palette));
[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:89:9
[INFO] [stdout]    |
[INFO] [stdout] 89 | /         self.pixel_fifo
[INFO] [stdout] 90 | |             .queue(PPU::get_color((tile_high & 0x03) >> 6, palette));
[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:92:9
[INFO] [stdout]    |
[INFO] [stdout] 92 | /         self.pixel_fifo
[INFO] [stdout] 93 | |             .queue(PPU::get_color(tile_low >> 6, palette));
[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:94:9
[INFO] [stdout]    |
[INFO] [stdout] 94 | /         self.pixel_fifo
[INFO] [stdout] 95 | |             .queue(PPU::get_color((tile_low & 0x30) >> 6, palette));
[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:96:9
[INFO] [stdout]    |
[INFO] [stdout] 96 | /         self.pixel_fifo
[INFO] [stdout] 97 | |             .queue(PPU::get_color((tile_low & 0x0C) >> 6, palette));
[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:98:9
[INFO] [stdout]    |
[INFO] [stdout] 98 | /         self.pixel_fifo
[INFO] [stdout] 99 | |             .queue(PPU::get_color((tile_low & 0x03) >> 6, palette));
[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:46:13
[INFO] [stdout]    |
[INFO] [stdout] 46 |             clock_rx.recv();
[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/ppu.rs:83:9
[INFO] [stdout]    |
[INFO] [stdout] 83 | /         self.pixel_fifo
[INFO] [stdout] 84 | |             .queue(PPU::get_color(tile_high >> 6, palette));
[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:85:9
[INFO] [stdout]    |
[INFO] [stdout] 85 | /         self.pixel_fifo
[INFO] [stdout] 86 | |             .queue(PPU::get_color((tile_high & 0x30) >> 6, palette));
[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:87:9
[INFO] [stdout]    |
[INFO] [stdout] 87 | /         self.pixel_fifo
[INFO] [stdout] 88 | |             .queue(PPU::get_color((tile_high & 0x0C) >> 6, palette));
[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:89:9
[INFO] [stdout]    |
[INFO] [stdout] 89 | /         self.pixel_fifo
[INFO] [stdout] 90 | |             .queue(PPU::get_color((tile_high & 0x03) >> 6, palette));
[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:92:9
[INFO] [stdout]    |
[INFO] [stdout] 92 | /         self.pixel_fifo
[INFO] [stdout] 93 | |             .queue(PPU::get_color(tile_low >> 6, palette));
[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:94:9
[INFO] [stdout]    |
[INFO] [stdout] 94 | /         self.pixel_fifo
[INFO] [stdout] 95 | |             .queue(PPU::get_color((tile_low & 0x30) >> 6, palette));
[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:96:9
[INFO] [stdout]    |
[INFO] [stdout] 96 | /         self.pixel_fifo
[INFO] [stdout] 97 | |             .queue(PPU::get_color((tile_low & 0x0C) >> 6, palette));
[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:98:9
[INFO] [stdout]    |
[INFO] [stdout] 98 | /         self.pixel_fifo
[INFO] [stdout] 99 | |             .queue(PPU::get_color((tile_low & 0x03) >> 6, palette));
[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: 20 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 20 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.79s
[INFO] running `Command { std: "docker" "inspect" "4e677e53fad3781ab5d83597efa39dc668da50116b9f1472c055e3f66f235975", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4e677e53fad3781ab5d83597efa39dc668da50116b9f1472c055e3f66f235975", kill_on_drop: false }`
[INFO] [stdout] 4e677e53fad3781ab5d83597efa39dc668da50116b9f1472c055e3f66f235975