[INFO] cloning repository https://github.com/triptolemusew/gbc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/triptolemusew/gbc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftriptolemusew%2Fgbc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftriptolemusew%2Fgbc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9264b3e4d8daedc2e973ee06bfd1c15a426f5055
[INFO] checking triptolemusew/gbc against try#cd420d8bda33494ba3cc45048d5f067484a32b94 for pr-140209-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftriptolemusew%2Fgbc" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/triptolemusew/gbc on toolchain cd420d8bda33494ba3cc45048d5f067484a32b94
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cd420d8bda33494ba3cc45048d5f067484a32b94" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/triptolemusew/gbc
[INFO] finished tweaking git repo https://github.com/triptolemusew/gbc
[INFO] tweaked toml for git repo https://github.com/triptolemusew/gbc written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/triptolemusew/gbc already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cd420d8bda33494ba3cc45048d5f067484a32b94" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking triptolemusew/gbc against try#cd420d8bda33494ba3cc45048d5f067484a32b94 for pr-140209-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftriptolemusew%2Fgbc" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/triptolemusew/gbc on toolchain cd420d8bda33494ba3cc45048d5f067484a32b94
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cd420d8bda33494ba3cc45048d5f067484a32b94" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/triptolemusew/gbc
[INFO] finished tweaking git repo https://github.com/triptolemusew/gbc
[INFO] tweaked toml for git repo https://github.com/triptolemusew/gbc written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/triptolemusew/gbc already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cd420d8bda33494ba3cc45048d5f067484a32b94" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+cd420d8bda33494ba3cc45048d5f067484a32b94" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] abfb5e9df16fcc5a89d30b29a1360aa6dad17188d7d7b7a129f0cbe90d67876d
[INFO] running `Command { std: "docker" "start" "-a" "abfb5e9df16fcc5a89d30b29a1360aa6dad17188d7d7b7a129f0cbe90d67876d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "abfb5e9df16fcc5a89d30b29a1360aa6dad17188d7d7b7a129f0cbe90d67876d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "abfb5e9df16fcc5a89d30b29a1360aa6dad17188d7d7b7a129f0cbe90d67876d", kill_on_drop: false }`
[INFO] [stdout] abfb5e9df16fcc5a89d30b29a1360aa6dad17188d7d7b7a129f0cbe90d67876d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+cd420d8bda33494ba3cc45048d5f067484a32b94" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 997419936fd01d68b84e512894c52c805778e3fa1c60233771ffdbd9cc01f875
[INFO] running `Command { std: "docker" "start" "-a" "997419936fd01d68b84e512894c52c805778e3fa1c60233771ffdbd9cc01f875", kill_on_drop: false }`
[INFO] [stderr]     Checking gbc v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `addr`
[INFO] [stdout]   --> src/bus/mod.rs:21:24
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub fn read(&self, addr: u16) -> u8 {
[INFO] [stdout]    |                        ^^^^ help: if this is intentional, prefix it with an underscore: `_addr`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `addr`
[INFO] [stdout]   --> src/bus/mod.rs:25:29
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub fn write(&mut self, addr: u16, data: u8) {}
[INFO] [stdout]    |                             ^^^^ help: if this is intentional, prefix it with an underscore: `_addr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]   --> src/bus/mod.rs:25:40
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub fn write(&mut self, addr: u16, data: u8) {}
[INFO] [stdout]    |                                        ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bus`
[INFO] [stdout]   --> src/cpu/mod.rs:74:42
[INFO] [stdout]    |
[INFO] [stdout] 74 |     fn execute_opcode(&mut self, op: u8, bus: &mut Bus) -> &u32 {
[INFO] [stdout]    |                                          ^^^ help: if this is intentional, prefix it with an underscore: `_bus`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `addr`
[INFO] [stdout]   --> src/bus/mod.rs:21:24
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub fn read(&self, addr: u16) -> u8 {
[INFO] [stdout]    |                        ^^^^ help: if this is intentional, prefix it with an underscore: `_addr`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `addr`
[INFO] [stdout]   --> src/bus/mod.rs:25:29
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub fn write(&mut self, addr: u16, data: u8) {}
[INFO] [stdout]    |                             ^^^^ help: if this is intentional, prefix it with an underscore: `_addr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]   --> src/bus/mod.rs:25:40
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub fn write(&mut self, addr: u16, data: u8) {}
[INFO] [stdout]    |                                        ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bus`
[INFO] [stdout]   --> src/cpu/mod.rs:86:51
[INFO] [stdout]    |
[INFO] [stdout] 86 |     fn execute_extended_opcode(&mut self, op: u8, bus: &mut Bus) -> &u32 {
[INFO] [stdout]    |                                                   ^^^ help: if this is intentional, prefix it with an underscore: `_bus`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cycles`
[INFO] [stdout]    --> src/ppu/mod.rs:110:28
[INFO] [stdout]     |
[INFO] [stdout] 110 |     pub fn step(&mut self, cycles: u32) {}
[INFO] [stdout]     |                            ^^^^^^ help: if this is intentional, prefix it with an underscore: `_cycles`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `cart`, `wram`, and `hram` are never read
[INFO] [stdout]  --> src/bus/mod.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Bus {
[INFO] [stdout]   |            --- fields in this struct
[INFO] [stdout] 5 |     ppu: Ppu,
[INFO] [stdout] 6 |     cart: Cartridge,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 7 |     wram: [u8; 0x2000],
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 8 |     hram: [u8; 0x2000],
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_word` is never used
[INFO] [stdout]   --> src/cpu/mod.rs:53:8
[INFO] [stdout]    |
[INFO] [stdout] 30 | impl Cpu {
[INFO] [stdout]    | -------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 53 |     fn get_word(&mut self, bus: &Bus) -> u16 {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `ld` is never used
[INFO] [stdout]  --> src/cpu/instructions.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 |     pub fn ld() {}
[INFO] [stdout]   |            ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `rst` is never used
[INFO] [stdout]  --> src/cpu/instructions.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 |     pub fn rst() {}
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `2` is never read
[INFO] [stdout]  --> src/cpu/opcode.rs:1:40
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Opcode<'a>(pub u8, pub u32, pub &'a str);
[INFO] [stdout]   |            ------ field in this struct ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `2` is never read
[INFO] [stdout]  --> src/cpu/opcode.rs:2:48
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct ExtendedOpcode<'a>(pub u8, pub u32, pub &'a str);
[INFO] [stdout]   |            -------------- field in this struct ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `increment`, `decrement`, and `add` are never used
[INFO] [stdout]   --> src/cpu/register.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl RegisterPair {
[INFO] [stdout]    | ----------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 19 |     fn increment(&mut self) {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 31 |     fn decrement(&mut self) {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 43 |     fn add(&mut self, val: RegisterPair) {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `CLOCK_SPEED` is never used
[INFO] [stdout]  --> src/ppu/mod.rs:3:7
[INFO] [stdout]   |
[INFO] [stdout] 3 | const CLOCK_SPEED: u32 = 4194304;
[INFO] [stdout]   |       ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `FRAME_RATE` is never used
[INFO] [stdout]  --> src/ppu/mod.rs:4:7
[INFO] [stdout]   |
[INFO] [stdout] 4 | const FRAME_RATE: u32 = 60;
[INFO] [stdout]   |       ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `CYCLES_PER_FRAME` is never used
[INFO] [stdout]  --> src/ppu/mod.rs:5:7
[INFO] [stdout]   |
[INFO] [stdout] 5 | const CYCLES_PER_FRAME: u32 = CLOCK_SPEED / FRAME_RATE;
[INFO] [stdout]   |       ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `LCD_CONTROL_ADDR` is never used
[INFO] [stdout]  --> src/ppu/mod.rs:7:7
[INFO] [stdout]   |
[INFO] [stdout] 7 | const LCD_CONTROL_ADDR: u16 = 0xFF40;
[INFO] [stdout]   |       ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `LCD_STATUS_ADDR` is never used
[INFO] [stdout]  --> src/ppu/mod.rs:8:7
[INFO] [stdout]   |
[INFO] [stdout] 8 | const LCD_STATUS_ADDR: u16 = 0xFF41;
[INFO] [stdout]   |       ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `CURRENT_SCANLINE_ADDR` is never used
[INFO] [stdout]   --> src/ppu/mod.rs:10:7
[INFO] [stdout]    |
[INFO] [stdout] 10 | const CURRENT_SCANLINE_ADDR: u16 = 0xFF44;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `OAM_PERIOD` is never used
[INFO] [stdout]   --> src/ppu/mod.rs:12:7
[INFO] [stdout]    |
[INFO] [stdout] 12 | const OAM_PERIOD: u32 = 80;
[INFO] [stdout]    |       ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `TRANSFER_PERIOD` is never used
[INFO] [stdout]   --> src/ppu/mod.rs:13:7
[INFO] [stdout]    |
[INFO] [stdout] 13 | const TRANSFER_PERIOD: u32 = OAM_PERIOD + 172;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `HBLANK_PERIOD` is never used
[INFO] [stdout]   --> src/ppu/mod.rs:14:7
[INFO] [stdout]    |
[INFO] [stdout] 14 | const HBLANK_PERIOD: u32 = 456;
[INFO] [stdout]    |       ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `FRAME_PERIOD` is never used
[INFO] [stdout]   --> src/ppu/mod.rs:15:7
[INFO] [stdout]    |
[INFO] [stdout] 15 | const FRAME_PERIOD: u32 = HBLANK_PERIOD + 144;
[INFO] [stdout]    |       ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `VBLANK_PERIOD` is never used
[INFO] [stdout]   --> src/ppu/mod.rs:16:7
[INFO] [stdout]    |
[INFO] [stdout] 16 | const VBLANK_PERIOD: u32 = FRAME_PERIOD + 4560;
[INFO] [stdout]    |       ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `StatusInterrupt` is never used
[INFO] [stdout]   --> src/ppu/mod.rs:26:6
[INFO] [stdout]    |
[INFO] [stdout] 26 | enum StatusInterrupt {
[INFO] [stdout]    |      ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `SdlColor` is never used
[INFO] [stdout]   --> src/ppu/mod.rs:72:6
[INFO] [stdout]    |
[INFO] [stdout] 72 | enum SdlColor {
[INFO] [stdout]    |      ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `Instructions` should have a snake case name
[INFO] [stdout]  --> src/cpu/instructions.rs:1:9
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub mod Instructions {
[INFO] [stdout]   |         ^^^^^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `instructions`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bus`
[INFO] [stdout]   --> src/cpu/mod.rs:74:42
[INFO] [stdout]    |
[INFO] [stdout] 74 |     fn execute_opcode(&mut self, op: u8, bus: &mut Bus) -> &u32 {
[INFO] [stdout]    |                                          ^^^ help: if this is intentional, prefix it with an underscore: `_bus`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bus`
[INFO] [stdout]   --> src/cpu/mod.rs:86:51
[INFO] [stdout]    |
[INFO] [stdout] 86 |     fn execute_extended_opcode(&mut self, op: u8, bus: &mut Bus) -> &u32 {
[INFO] [stdout]    |                                                   ^^^ help: if this is intentional, prefix it with an underscore: `_bus`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cycles`
[INFO] [stdout]    --> src/ppu/mod.rs:110:28
[INFO] [stdout]     |
[INFO] [stdout] 110 |     pub fn step(&mut self, cycles: u32) {}
[INFO] [stdout]     |                            ^^^^^^ help: if this is intentional, prefix it with an underscore: `_cycles`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `cart`, `wram`, and `hram` are never read
[INFO] [stdout]  --> src/bus/mod.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Bus {
[INFO] [stdout]   |            --- fields in this struct
[INFO] [stdout] 5 |     ppu: Ppu,
[INFO] [stdout] 6 |     cart: Cartridge,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 7 |     wram: [u8; 0x2000],
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 8 |     hram: [u8; 0x2000],
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_word` is never used
[INFO] [stdout]   --> src/cpu/mod.rs:53:8
[INFO] [stdout]    |
[INFO] [stdout] 30 | impl Cpu {
[INFO] [stdout]    | -------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 53 |     fn get_word(&mut self, bus: &Bus) -> u16 {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `ld` is never used
[INFO] [stdout]  --> src/cpu/instructions.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 |     pub fn ld() {}
[INFO] [stdout]   |            ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `rst` is never used
[INFO] [stdout]  --> src/cpu/instructions.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 |     pub fn rst() {}
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `2` is never read
[INFO] [stdout]  --> src/cpu/opcode.rs:1:40
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Opcode<'a>(pub u8, pub u32, pub &'a str);
[INFO] [stdout]   |            ------ field in this struct ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `2` is never read
[INFO] [stdout]  --> src/cpu/opcode.rs:2:48
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct ExtendedOpcode<'a>(pub u8, pub u32, pub &'a str);
[INFO] [stdout]   |            -------------- field in this struct ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `increment`, `decrement`, and `add` are never used
[INFO] [stdout]   --> src/cpu/register.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl RegisterPair {
[INFO] [stdout]    | ----------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 19 |     fn increment(&mut self) {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 31 |     fn decrement(&mut self) {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 43 |     fn add(&mut self, val: RegisterPair) {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `CLOCK_SPEED` is never used
[INFO] [stdout]  --> src/ppu/mod.rs:3:7
[INFO] [stdout]   |
[INFO] [stdout] 3 | const CLOCK_SPEED: u32 = 4194304;
[INFO] [stdout]   |       ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `FRAME_RATE` is never used
[INFO] [stdout]  --> src/ppu/mod.rs:4:7
[INFO] [stdout]   |
[INFO] [stdout] 4 | const FRAME_RATE: u32 = 60;
[INFO] [stdout]   |       ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `CYCLES_PER_FRAME` is never used
[INFO] [stdout]  --> src/ppu/mod.rs:5:7
[INFO] [stdout]   |
[INFO] [stdout] 5 | const CYCLES_PER_FRAME: u32 = CLOCK_SPEED / FRAME_RATE;
[INFO] [stdout]   |       ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `LCD_CONTROL_ADDR` is never used
[INFO] [stdout]  --> src/ppu/mod.rs:7:7
[INFO] [stdout]   |
[INFO] [stdout] 7 | const LCD_CONTROL_ADDR: u16 = 0xFF40;
[INFO] [stdout]   |       ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `LCD_STATUS_ADDR` is never used
[INFO] [stdout]  --> src/ppu/mod.rs:8:7
[INFO] [stdout]   |
[INFO] [stdout] 8 | const LCD_STATUS_ADDR: u16 = 0xFF41;
[INFO] [stdout]   |       ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `CURRENT_SCANLINE_ADDR` is never used
[INFO] [stdout]   --> src/ppu/mod.rs:10:7
[INFO] [stdout]    |
[INFO] [stdout] 10 | const CURRENT_SCANLINE_ADDR: u16 = 0xFF44;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `OAM_PERIOD` is never used
[INFO] [stdout]   --> src/ppu/mod.rs:12:7
[INFO] [stdout]    |
[INFO] [stdout] 12 | const OAM_PERIOD: u32 = 80;
[INFO] [stdout]    |       ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `TRANSFER_PERIOD` is never used
[INFO] [stdout]   --> src/ppu/mod.rs:13:7
[INFO] [stdout]    |
[INFO] [stdout] 13 | const TRANSFER_PERIOD: u32 = OAM_PERIOD + 172;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `HBLANK_PERIOD` is never used
[INFO] [stdout]   --> src/ppu/mod.rs:14:7
[INFO] [stdout]    |
[INFO] [stdout] 14 | const HBLANK_PERIOD: u32 = 456;
[INFO] [stdout]    |       ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `FRAME_PERIOD` is never used
[INFO] [stdout]   --> src/ppu/mod.rs:15:7
[INFO] [stdout]    |
[INFO] [stdout] 15 | const FRAME_PERIOD: u32 = HBLANK_PERIOD + 144;
[INFO] [stdout]    |       ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `VBLANK_PERIOD` is never used
[INFO] [stdout]   --> src/ppu/mod.rs:16:7
[INFO] [stdout]    |
[INFO] [stdout] 16 | const VBLANK_PERIOD: u32 = FRAME_PERIOD + 4560;
[INFO] [stdout]    |       ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `StatusInterrupt` is never used
[INFO] [stdout]   --> src/ppu/mod.rs:26:6
[INFO] [stdout]    |
[INFO] [stdout] 26 | enum StatusInterrupt {
[INFO] [stdout]    |      ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `SdlColor` is never used
[INFO] [stdout]   --> src/ppu/mod.rs:72:6
[INFO] [stdout]    |
[INFO] [stdout] 72 | enum SdlColor {
[INFO] [stdout]    |      ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `Instructions` should have a snake case name
[INFO] [stdout]  --> src/cpu/instructions.rs:1:9
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub mod Instructions {
[INFO] [stdout]   |         ^^^^^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `instructions`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.15s
[INFO] running `Command { std: "docker" "inspect" "997419936fd01d68b84e512894c52c805778e3fa1c60233771ffdbd9cc01f875", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "997419936fd01d68b84e512894c52c805778e3fa1c60233771ffdbd9cc01f875", kill_on_drop: false }`
[INFO] [stdout] 997419936fd01d68b84e512894c52c805778e3fa1c60233771ffdbd9cc01f875