[INFO] updating cached repository https://github.com/PeronTheDuck/crustacean_6502_emulator
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e699ad8a4008178f45d6492ea6eb942eaa53eeb2
[INFO] checking PeronTheDuck/crustacean_6502_emulator against master#fdc0011561c6365c596dfd8fa1ef388162bc89c7 for pr-66504-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPeronTheDuck%2Fcrustacean_6502_emulator" "/workspace/builds/worker-5/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/PeronTheDuck/crustacean_6502_emulator on toolchain fdc0011561c6365c596dfd8fa1ef388162bc89c7
[INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/PeronTheDuck/crustacean_6502_emulator
[INFO] finished tweaking git repo https://github.com/PeronTheDuck/crustacean_6502_emulator
[INFO] tweaked toml for git repo https://github.com/PeronTheDuck/crustacean_6502_emulator written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/PeronTheDuck/crustacean_6502_emulator already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 40388a3e44b2f851212ea1c4b66ab0e79b7b92dd5800bab71417d63bb0392d25
[INFO] running `"docker" "start" "-a" "40388a3e44b2f851212ea1c4b66ab0e79b7b92dd5800bab71417d63bb0392d25"`
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking sdl2-sys v0.32.6
[INFO] [stderr]     Checking num-iter v0.1.39
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking sdl2 v0.32.2
[INFO] [stderr]     Checking crustacean_6502_emulator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused imports: `GeneratorState`, `Generator`
[INFO] [stderr]  --> src/main.rs:5:16
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::ops::{Generator, GeneratorState};
[INFO] [stderr]   |                ^^^^^^^^^  ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::pin::Pin`
[INFO] [stderr]  --> src/main.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::pin::Pin;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::ops::Range`
[INFO] [stderr]  --> src/bus.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::ops::Range;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `GeneratorState`
[INFO] [stderr]  --> src/memory.rs:5:27
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::ops::{Generator, GeneratorState};
[INFO] [stderr]   |                           ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]   --> src/memory.rs:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | / macro_rules! mem {
[INFO] [stderr] 12 | |     [$who:expr=>$addr:expr] => {
[INFO] [stderr] 13 | |         {yield;$who.read($addr)}
[INFO] [stderr] 14 | |     };
[INFO] [stderr] ...  |
[INFO] [stderr] 20 | |     }
[INFO] [stderr] 21 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_macros)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type `sdl` should have an upper camel case name
[INFO] [stderr]  --> src/sdl.rs:4:12
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub struct sdl {
[INFO] [stderr]   |            ^^^ help: convert the identifier to upper camel case (notice the capitalization): `Sdl`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::borrow::Borrow`
[INFO] [stderr]  --> src/cpu.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::borrow::Borrow;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::ops::Deref`
[INFO] [stderr]  --> src/cpu.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::ops::Deref;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]   --> src/cpu.rs:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | / macro_rules! R {
[INFO] [stderr] 12 | |     [$w:ident=>$r:tt] => {
[INFO] [stderr] 13 | |         {$w.cpu.$r.get()}
[INFO] [stderr] 14 | |     };
[INFO] [stderr] ...  |
[INFO] [stderr] 17 | |     }
[INFO] [stderr] 18 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]   --> src/cpu.rs:20:1
[INFO] [stderr]    |
[INFO] [stderr] 20 | / macro_rules! args_as {
[INFO] [stderr] 21 | |     ($args:ident, full) => {{
[INFO] [stderr] 22 | |         (($args[1] as u16) << 8) + $args[0] as u16
[INFO] [stderr] 23 | |     }};
[INFO] [stderr] ...  |
[INFO] [stderr] 26 | |     }};
[INFO] [stderr] 27 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `GeneratorState`, `Generator`
[INFO] [stderr]  --> src/main.rs:5:16
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::ops::{Generator, GeneratorState};
[INFO] [stderr]   |                ^^^^^^^^^  ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::pin::Pin`
[INFO] [stderr]  --> src/main.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::pin::Pin;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::ops::Range`
[INFO] [stderr]  --> src/bus.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::ops::Range;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `GeneratorState`
[INFO] [stderr]  --> src/memory.rs:5:27
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::ops::{Generator, GeneratorState};
[INFO] [stderr]   |                           ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]   --> src/memory.rs:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | / macro_rules! mem {
[INFO] [stderr] 12 | |     [$who:expr=>$addr:expr] => {
[INFO] [stderr] 13 | |         {yield;$who.read($addr)}
[INFO] [stderr] 14 | |     };
[INFO] [stderr] ...  |
[INFO] [stderr] 20 | |     }
[INFO] [stderr] 21 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_macros)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type `sdl` should have an upper camel case name
[INFO] [stderr]  --> src/sdl.rs:4:12
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub struct sdl {
[INFO] [stderr]   |            ^^^ help: convert the identifier to upper camel case (notice the capitalization): `Sdl`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::borrow::Borrow`
[INFO] [stderr]  --> src/cpu.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::borrow::Borrow;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::ops::Deref`
[INFO] [stderr]  --> src/cpu.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::ops::Deref;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]   --> src/cpu.rs:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | / macro_rules! R {
[INFO] [stderr] 12 | |     [$w:ident=>$r:tt] => {
[INFO] [stderr] 13 | |         {$w.cpu.$r.get()}
[INFO] [stderr] 14 | |     };
[INFO] [stderr] ...  |
[INFO] [stderr] 17 | |     }
[INFO] [stderr] 18 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]   --> src/cpu.rs:20:1
[INFO] [stderr]    |
[INFO] [stderr] 20 | / macro_rules! args_as {
[INFO] [stderr] 21 | |     ($args:ident, full) => {{
[INFO] [stderr] 22 | |         (($args[1] as u16) << 8) + $args[0] as u16
[INFO] [stderr] 23 | |     }};
[INFO] [stderr] ...  |
[INFO] [stderr] 26 | |     }};
[INFO] [stderr] 27 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `addr`
[INFO] [stderr]  --> src/component.rs:2:20
[INFO] [stderr]   |
[INFO] [stderr] 2 |     fn read(&self, addr: u16) -> u8 {
[INFO] [stderr]   |                    ^^^^ help: consider prefixing with an underscore: `_addr`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `addr`
[INFO] [stderr]   --> src/component.rs:12:20
[INFO] [stderr]    |
[INFO] [stderr] 12 |     fn read(&self, addr: u16) -> u8 {
[INFO] [stderr]    |                    ^^^^ help: consider prefixing with an underscore: `_addr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `page_cell`
[INFO] [stderr]   --> src/memory.rs:93:13
[INFO] [stderr]    |
[INFO] [stderr] 93 |         for page_cell in self.ram.into_iter() {
[INFO] [stderr]    |             ^^^^^^^^^ help: consider prefixing with an underscore: `_page_cell`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `page_dump`
[INFO] [stderr]   --> src/memory.rs:94:17
[INFO] [stderr]    |
[INFO] [stderr] 94 |             let page_dump: String = String::from("");
[INFO] [stderr]    |                 ^^^^^^^^^ help: consider prefixing with an underscore: `_page_dump`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `bus`
[INFO] [stderr]    --> src/cpu.rs:195:5
[INFO] [stderr]     |
[INFO] [stderr] 195 |     bus: SharedBus,
[INFO] [stderr]     |     ^^^ help: consider prefixing with an underscore: `_bus`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/sdl.rs:28:13
[INFO] [stderr]    |
[INFO] [stderr] 28 |         let mut ev_pump = sdl.event_pump().map_err(|e| e.to_string())?;
[INFO] [stderr]    |             ----^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/cpu.rs:143:17
[INFO] [stderr]     |
[INFO] [stderr] 143 |             let mut cpu = Rc::new(Cpu {
[INFO] [stderr]     |                 ----^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Write`
[INFO] [stderr]  --> src/bus.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     Write,
[INFO] [stderr]   |     ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `set_address`
[INFO] [stderr]   --> src/bus.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 23 |     fn set_address(&self, addr: u16) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `set_mode`
[INFO] [stderr]   --> src/bus.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 26 |     fn set_mode(&self, mode: BusMode) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `OutOfBounds`
[INFO] [stderr]   --> src/memory.rs:28:5
[INFO] [stderr]    |
[INFO] [stderr] 28 |     OutOfBounds,
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Memory`
[INFO] [stderr]   --> src/memory.rs:32:12
[INFO] [stderr]    |
[INFO] [stderr] 32 | pub struct Memory {
[INFO] [stderr]    |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/memory.rs:38:5
[INFO] [stderr]    |
[INFO] [stderr] 38 |     pub fn new(rom: Cartridge) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `set_rom`
[INFO] [stderr]   --> src/memory.rs:45:5
[INFO] [stderr]    |
[INFO] [stderr] 45 |     pub fn set_rom(&mut self, rom: Cartridge) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `write`
[INFO] [stderr]   --> src/memory.rs:48:5
[INFO] [stderr]    |
[INFO] [stderr] 48 |     pub fn write(&self, addr: u16, value: u8) -> MemoryResult<()> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `read`
[INFO] [stderr]   --> src/memory.rs:64:5
[INFO] [stderr]    |
[INFO] [stderr] 64 |     pub fn read(&self, addr: u16) -> MemoryResult<u8> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `dump_ram`
[INFO] [stderr]   --> src/memory.rs:90:5
[INFO] [stderr]    |
[INFO] [stderr] 90 |     pub fn dump_ram(&self) -> String {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `Palette`
[INFO] [stderr]   --> src/gpu.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | / pub const Palette: [Color; 16] = [
[INFO] [stderr] 13 | |     color!(rgb(0, 0, 0)),
[INFO] [stderr] 14 | |     color!(rgb(255, 0, 0)),
[INFO] [stderr] 15 | |     color!(rgb(0, 255, 0)),
[INFO] [stderr] ...  |
[INFO] [stderr] 28 | |     color!(rgb(191, 191, 191)),
[INFO] [stderr] 29 | | ];
[INFO] [stderr]    | |__^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `WIN_SIZE`
[INFO] [stderr]  --> src/sdl.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub const WIN_SIZE: u32 = 320;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `PIXEL_SIZE`
[INFO] [stderr]  --> src/sdl.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | pub const PIXEL_SIZE: u32 = WIN_SIZE / 16;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `sdl`
[INFO] [stderr]  --> src/sdl.rs:4:12
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub struct sdl {
[INFO] [stderr]   |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/sdl.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     pub fn new() -> Result<sdl, String> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `process_events`
[INFO] [stderr]   --> src/sdl.rs:36:5
[INFO] [stderr]    |
[INFO] [stderr] 36 |     pub fn process_events(&mut self) -> Result<(), ()> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Crash`
[INFO] [stderr]   --> src/cpu.rs:48:5
[INFO] [stderr]    |
[INFO] [stderr] 48 |     Crash,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `sp`
[INFO] [stderr]    --> src/cpu.rs:129:5
[INFO] [stderr]     |
[INFO] [stderr] 129 |     sp: Cell<u16>,
[INFO] [stderr]     |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `rx`
[INFO] [stderr]    --> src/cpu.rs:131:5
[INFO] [stderr]     |
[INFO] [stderr] 131 |     rx: Cell<u8>,
[INFO] [stderr]     |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `ry`
[INFO] [stderr]    --> src/cpu.rs:132:5
[INFO] [stderr]     |
[INFO] [stderr] 132 |     ry: Cell<u8>,
[INFO] [stderr]     |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `status`
[INFO] [stderr]    --> src/cpu.rs:133:5
[INFO] [stderr]     |
[INFO] [stderr] 133 |     status: Cell<u8>,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: this method call currently resolves to `<&[T] as IntoIterator>::into_iter` (due to autoref coercions), but that might change in the future when `IntoIterator` impls for arrays are added.
[INFO] [stderr]   --> src/memory.rs:93:35
[INFO] [stderr]    |
[INFO] [stderr] 93 |         for page_cell in self.ram.into_iter() {
[INFO] [stderr]    |                                   ^^^^^^^^^ help: use `.iter()` instead of `.into_iter()` to avoid ambiguity: `iter`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(array_into_iter)]` on by default
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #66145 <https://github.com/rust-lang/rust/issues/66145>
[INFO] [stderr] 
[INFO] [stderr] warning: constant `Palette` should have an upper case name
[INFO] [stderr]   --> src/gpu.rs:12:11
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub const Palette: [Color; 16] = [
[INFO] [stderr]    |           ^^^^^^^ help: convert the identifier to upper case: `PALETTE`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `addr`
[INFO] [stderr]  --> src/component.rs:2:20
[INFO] [stderr]   |
[INFO] [stderr] 2 |     fn read(&self, addr: u16) -> u8 {
[INFO] [stderr]   |                    ^^^^ help: consider prefixing with an underscore: `_addr`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `addr`
[INFO] [stderr]   --> src/component.rs:12:20
[INFO] [stderr]    |
[INFO] [stderr] 12 |     fn read(&self, addr: u16) -> u8 {
[INFO] [stderr]    |                    ^^^^ help: consider prefixing with an underscore: `_addr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `page_cell`
[INFO] [stderr]   --> src/memory.rs:93:13
[INFO] [stderr]    |
[INFO] [stderr] 93 |         for page_cell in self.ram.into_iter() {
[INFO] [stderr]    |             ^^^^^^^^^ help: consider prefixing with an underscore: `_page_cell`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `page_dump`
[INFO] [stderr]   --> src/memory.rs:94:17
[INFO] [stderr]    |
[INFO] [stderr] 94 |             let page_dump: String = String::from("");
[INFO] [stderr]    |                 ^^^^^^^^^ help: consider prefixing with an underscore: `_page_dump`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `bus`
[INFO] [stderr]    --> src/cpu.rs:195:5
[INFO] [stderr]     |
[INFO] [stderr] 195 |     bus: SharedBus,
[INFO] [stderr]     |     ^^^ help: consider prefixing with an underscore: `_bus`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/sdl.rs:28:13
[INFO] [stderr]    |
[INFO] [stderr] 28 |         let mut ev_pump = sdl.event_pump().map_err(|e| e.to_string())?;
[INFO] [stderr]    |             ----^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/cpu.rs:143:17
[INFO] [stderr]     |
[INFO] [stderr] 143 |             let mut cpu = Rc::new(Cpu {
[INFO] [stderr]     |                 ----^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Write`
[INFO] [stderr]  --> src/bus.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     Write,
[INFO] [stderr]   |     ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `set_address`
[INFO] [stderr]   --> src/bus.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 23 |     fn set_address(&self, addr: u16) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `set_mode`
[INFO] [stderr]   --> src/bus.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 26 |     fn set_mode(&self, mode: BusMode) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `OutOfBounds`
[INFO] [stderr]   --> src/memory.rs:28:5
[INFO] [stderr]    |
[INFO] [stderr] 28 |     OutOfBounds,
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Memory`
[INFO] [stderr]   --> src/memory.rs:32:12
[INFO] [stderr]    |
[INFO] [stderr] 32 | pub struct Memory {
[INFO] [stderr]    |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/memory.rs:38:5
[INFO] [stderr]    |
[INFO] [stderr] 38 |     pub fn new(rom: Cartridge) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `set_rom`
[INFO] [stderr]   --> src/memory.rs:45:5
[INFO] [stderr]    |
[INFO] [stderr] 45 |     pub fn set_rom(&mut self, rom: Cartridge) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `write`
[INFO] [stderr]   --> src/memory.rs:48:5
[INFO] [stderr]    |
[INFO] [stderr] 48 |     pub fn write(&self, addr: u16, value: u8) -> MemoryResult<()> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `read`
[INFO] [stderr]   --> src/memory.rs:64:5
[INFO] [stderr]    |
[INFO] [stderr] 64 |     pub fn read(&self, addr: u16) -> MemoryResult<u8> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `dump_ram`
[INFO] [stderr]   --> src/memory.rs:90:5
[INFO] [stderr]    |
[INFO] [stderr] 90 |     pub fn dump_ram(&self) -> String {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `Palette`
[INFO] [stderr]   --> src/gpu.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | / pub const Palette: [Color; 16] = [
[INFO] [stderr] 13 | |     color!(rgb(0, 0, 0)),
[INFO] [stderr] 14 | |     color!(rgb(255, 0, 0)),
[INFO] [stderr] 15 | |     color!(rgb(0, 255, 0)),
[INFO] [stderr] ...  |
[INFO] [stderr] 28 | |     color!(rgb(191, 191, 191)),
[INFO] [stderr] 29 | | ];
[INFO] [stderr]    | |__^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `WIN_SIZE`
[INFO] [stderr]  --> src/sdl.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub const WIN_SIZE: u32 = 320;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `PIXEL_SIZE`
[INFO] [stderr]  --> src/sdl.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | pub const PIXEL_SIZE: u32 = WIN_SIZE / 16;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `sdl`
[INFO] [stderr]  --> src/sdl.rs:4:12
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub struct sdl {
[INFO] [stderr]   |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/sdl.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     pub fn new() -> Result<sdl, String> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `process_events`
[INFO] [stderr]   --> src/sdl.rs:36:5
[INFO] [stderr]    |
[INFO] [stderr] 36 |     pub fn process_events(&mut self) -> Result<(), ()> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Crash`
[INFO] [stderr]   --> src/cpu.rs:48:5
[INFO] [stderr]    |
[INFO] [stderr] 48 |     Crash,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `sp`
[INFO] [stderr]    --> src/cpu.rs:129:5
[INFO] [stderr]     |
[INFO] [stderr] 129 |     sp: Cell<u16>,
[INFO] [stderr]     |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `rx`
[INFO] [stderr]    --> src/cpu.rs:131:5
[INFO] [stderr]     |
[INFO] [stderr] 131 |     rx: Cell<u8>,
[INFO] [stderr]     |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `ry`
[INFO] [stderr]    --> src/cpu.rs:132:5
[INFO] [stderr]     |
[INFO] [stderr] 132 |     ry: Cell<u8>,
[INFO] [stderr]     |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `status`
[INFO] [stderr]    --> src/cpu.rs:133:5
[INFO] [stderr]     |
[INFO] [stderr] 133 |     status: Cell<u8>,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: this method call currently resolves to `<&[T] as IntoIterator>::into_iter` (due to autoref coercions), but that might change in the future when `IntoIterator` impls for arrays are added.
[INFO] [stderr]   --> src/memory.rs:93:35
[INFO] [stderr]    |
[INFO] [stderr] 93 |         for page_cell in self.ram.into_iter() {
[INFO] [stderr]    |                                   ^^^^^^^^^ help: use `.iter()` instead of `.into_iter()` to avoid ambiguity: `iter`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(array_into_iter)]` on by default
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #66145 <https://github.com/rust-lang/rust/issues/66145>
[INFO] [stderr] 
[INFO] [stderr] warning: constant `Palette` should have an upper case name
[INFO] [stderr]   --> src/gpu.rs:12:11
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub const Palette: [Color; 16] = [
[INFO] [stderr]    |           ^^^^^^^ help: convert the identifier to upper case: `PALETTE`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.63s
[INFO] running `"docker" "inspect" "40388a3e44b2f851212ea1c4b66ab0e79b7b92dd5800bab71417d63bb0392d25"`
[INFO] running `"docker" "rm" "-f" "40388a3e44b2f851212ea1c4b66ab0e79b7b92dd5800bab71417d63bb0392d25"`
[INFO] [stdout] 40388a3e44b2f851212ea1c4b66ab0e79b7b92dd5800bab71417d63bb0392d25