[INFO] updating cached repository BlinfoldKing/Chip8-rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/BlinfoldKing/Chip8-rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/BlinfoldKing/Chip8-rs" "work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/BlinfoldKing/Chip8-rs"`
[INFO] [stderr] Cloning into 'work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/BlinfoldKing/Chip8-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/BlinfoldKing/Chip8-rs" "work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/BlinfoldKing/Chip8-rs"`
[INFO] [stderr] Cloning into 'work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/BlinfoldKing/Chip8-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 865bc402f1a586becc472eee2fc0df921cf17e52
[INFO] sha for GitHub repo BlinfoldKing/Chip8-rs: 865bc402f1a586becc472eee2fc0df921cf17e52
[INFO] validating manifest of BlinfoldKing/Chip8-rs on toolchain master#0f88167f89fffe321590c5148f21b7d51d44388d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of BlinfoldKing/Chip8-rs on toolchain try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing BlinfoldKing/Chip8-rs
[INFO] finished frobbing BlinfoldKing/Chip8-rs
[INFO] frobbed toml for BlinfoldKing/Chip8-rs written to work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/BlinfoldKing/Chip8-rs/Cargo.toml
[INFO] started frobbing BlinfoldKing/Chip8-rs
[INFO] finished frobbing BlinfoldKing/Chip8-rs
[INFO] frobbed toml for BlinfoldKing/Chip8-rs written to work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/BlinfoldKing/Chip8-rs/Cargo.toml
[INFO] crate BlinfoldKing/Chip8-rs already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking BlinfoldKing/Chip8-rs against try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b for pr-58948
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58948/worker-7/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/BlinfoldKing/Chip8-rs:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/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" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 7beade8db53740d66509afe8d6d6fc8215a0be2a38847ec99c4ccdfa3cb703b7
[INFO] running `"docker" "start" "-a" "7beade8db53740d66509afe8d6d6fc8215a0be2a38847ec99c4ccdfa3cb703b7"`
[INFO] [stderr]     Checking gfx_core v0.8.3
[INFO] [stderr]     Checking crossbeam-epoch v0.3.1
[INFO] [stderr]    Compiling gl v0.10.0
[INFO] [stderr]    Compiling num-derive v0.2.3
[INFO] [stderr]     Checking rusttype v0.4.3
[INFO] [stderr]     Checking pistoncore-input v0.21.0
[INFO] [stderr]     Checking crossbeam-deque v0.2.0
[INFO] [stderr]     Checking piston2d-graphics v0.26.0
[INFO] [stderr]     Checking rayon-core v1.4.1
[INFO] [stderr]     Checking rayon v1.0.2
[INFO] [stderr]     Checking pistoncore-window v0.32.0
[INFO] [stderr]     Checking pistoncore-event_loop v0.37.0
[INFO] [stderr]     Checking tiff v0.2.1
[INFO] [stderr]     Checking piston v0.37.0
[INFO] [stderr]     Checking jpeg-decoder v0.1.15
[INFO] [stderr]     Checking image v0.20.0
[INFO] [stderr]     Checking pistoncore-glutin_window v0.48.0
[INFO] [stderr]     Checking piston2d-opengl_graphics v0.54.0
[INFO] [stderr]     Checking gfx v0.17.1
[INFO] [stderr]     Checking gfx_device_gl v0.15.3
[INFO] [stderr]     Checking piston-gfx_texture v0.34.0
[INFO] [stderr]     Checking piston2d-gfx_graphics v0.52.0
[INFO] [stderr]     Checking piston_window v0.81.0
[INFO] [stderr]     Checking chip8-rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `piston::window::WindowSettings`
[INFO] [stderr]  --> src/main.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use piston::window::WindowSettings;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `glutin_window::GlutinWindow as Window`
[INFO] [stderr]   --> src/main.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use glutin_window::GlutinWindow as Window;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `piston::event_loop::*`
[INFO] [stderr]   --> src/main.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use piston::event_loop::*;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `piston::input::*`
[INFO] [stderr]   --> src/main.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 | use piston::input::*;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `GlGraphics`, `OpenGL`
[INFO] [stderr]   --> src/main.rs:13:24
[INFO] [stderr]    |
[INFO] [stderr] 13 | use opengl_graphics::{ GlGraphics, OpenGL };
[INFO] [stderr]    |                        ^^^^^^^^^^  ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::prelude::*`
[INFO] [stderr]  --> src/CPU.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::io::prelude::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable statement
[INFO] [stderr]   --> src/main.rs:29:5
[INFO] [stderr]    |
[INFO] [stderr] 29 |     println!("Hello, world!");
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unreachable_code)] on by default
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `state`
[INFO] [stderr]   --> src/CPU.rs:83:13
[INFO] [stderr]    |
[INFO] [stderr] 83 |         let state = match nibble {
[INFO] [stderr]    |             ^^^^^ help: consider prefixing with an underscore: `_state`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `bytes_read`
[INFO] [stderr]    --> src/CPU.rs:265:13
[INFO] [stderr]     |
[INFO] [stderr] 265 |         let bytes_read = if let Ok(bytes_read) = reader.read(&mut buffer) {
[INFO] [stderr]     |             ^^^^^^^^^^ help: consider prefixing with an underscore: `_bytes_read`
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `gfx`
[INFO] [stderr]   --> src/CPU.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 |     gfx: [[u8; 32]; 64],
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `delay_timer`
[INFO] [stderr]   --> src/CPU.rs:27:5
[INFO] [stderr]    |
[INFO] [stderr] 27 |     delay_timer: u8,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `sound_timer`
[INFO] [stderr]   --> src/CPU.rs:28:5
[INFO] [stderr]    |
[INFO] [stderr] 28 |     sound_timer: u8,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: module `CPU` should have a snake case name
[INFO] [stderr]   --> src/main.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 | mod CPU;
[INFO] [stderr]    |     ^^^ help: convert the identifier to snake case: `cpu`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(non_snake_case)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant `fontset` should have an upper case name
[INFO] [stderr]  --> src/CPU.rs:9:7
[INFO] [stderr]   |
[INFO] [stderr] 9 | const fontset: [u8; 80] = [
[INFO] [stderr]   |       ^^^^^^^ help: convert the identifier to upper case: `FONTSET`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(non_upper_case_globals)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `piston::window::WindowSettings`
[INFO] [stderr]  --> src/main.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use piston::window::WindowSettings;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `glutin_window::GlutinWindow as Window`
[INFO] [stderr]   --> src/main.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use glutin_window::GlutinWindow as Window;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `piston::event_loop::*`
[INFO] [stderr]   --> src/main.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use piston::event_loop::*;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] warning: structure field `V` should have a snake case name
[INFO] [stderr]   --> src/CPU.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 26 |     V: [u8; 16], // General purpose registers
[INFO] [stderr]    |     ^ help: convert the identifier to snake case: `v`
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `piston::input::*`
[INFO] [stderr]   --> src/main.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 | use piston::input::*;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `JP` should have a snake case name
[INFO] [stderr]    --> src/CPU.rs:116:8
[INFO] [stderr]     |
[INFO] [stderr] 116 |     fn JP (&mut self, nnn: u16) {
[INFO] [stderr]     |        ^^ help: convert the identifier to snake case: `jp`
[INFO] [stderr] warning: unused imports: `GlGraphics`, `OpenGL`
[INFO] [stderr]   --> src/main.rs:13:24
[INFO] [stderr]    |
[INFO] [stderr] 13 | use opengl_graphics::{ GlGraphics, OpenGL };
[INFO] [stderr]    |                        ^^^^^^^^^^  ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::prelude::*`
[INFO] [stderr]  --> src/CPU.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::io::prelude::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] [stderr] warning: method `CALL` should have a snake case name
[INFO] [stderr]    --> src/CPU.rs:121:8
[INFO] [stderr]     |
[INFO] [stderr] 121 |     fn CALL (&mut self, nnn: u16) {
[INFO] [stderr]     |        ^^^^ help: convert the identifier to snake case: `call`
[INFO] [stderr] 
[INFO] [stderr] warning: unused arithmetic operation that must be used
[INFO] [stderr]    --> src/CPU.rs:124:9
[INFO] [stderr]     |
[INFO] [stderr] 124 |         self.sp + 1;
[INFO] [stderr]     |         ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_must_use)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method `RET` should have a snake case name
[INFO] [stderr]    --> src/CPU.rs:128:8
[INFO] [stderr]     |
[INFO] [stderr] 128 |     fn RET (&mut self) {
[INFO] [stderr]     |        ^^^ help: convert the identifier to snake case: `ret`
[INFO] [stderr] 
[INFO] [stderr] warning: method `SE` should have a snake case name
[INFO] [stderr]    --> src/CPU.rs:134:8
[INFO] [stderr]     |
[INFO] [stderr] 134 |     fn SE (&mut self, x: u16, kk: u16) {
[INFO] [stderr]     |        ^^ help: convert the identifier to snake case: `se`
[INFO] [stderr] 
[INFO] [stderr] warning: method `SNE` should have a snake case name
[INFO] [stderr]    --> src/CPU.rs:141:8
[INFO] [stderr]     |
[INFO] [stderr] 141 |     fn SNE (&mut self, x: u16, kk: u16) {
[INFO] [stderr]     |        ^^^ help: convert the identifier to snake case: `sne`
[INFO] [stderr] 
[INFO] [stderr] warning: method `SE_xy` should have a snake case name
[INFO] [stderr]    --> src/CPU.rs:148:8
[INFO] [stderr]     |
[INFO] [stderr] 148 |     fn SE_xy (&mut self, x: u16, y: u16) {
[INFO] [stderr]     |        ^^^^^ help: convert the identifier to snake case: `se_xy`
[INFO] [stderr] 
[INFO] [stderr] warning: method `LD` should have a snake case name
[INFO] [stderr]    --> src/CPU.rs:155:8
[INFO] [stderr]     |
[INFO] [stderr] 155 |     fn LD (&mut self, x: u16, kk: u16) {
[INFO] [stderr]     |        ^^ help: convert the identifier to snake case: `ld`
[INFO] [stderr] 
[INFO] [stderr] warning: method `ADD` should have a snake case name
[INFO] [stderr]    --> src/CPU.rs:160:8
[INFO] [stderr]     |
[INFO] [stderr] 160 |     fn ADD (&mut self, x: u16, kk: u16) {
[INFO] [stderr]     |        ^^^ help: convert the identifier to snake case: `add`
[INFO] [stderr] 
[INFO] [stderr] warning: method `LD_xy` should have a snake case name
[INFO] [stderr]    --> src/CPU.rs:165:8
[INFO] [stderr]     |
[INFO] [stderr] 165 |     fn LD_xy (&mut self, x: u16, y: u16) {
[INFO] [stderr]     |        ^^^^^ help: convert the identifier to snake case: `ld_xy`
[INFO] [stderr] 
[INFO] [stderr] warning: method `OR` should have a snake case name
[INFO] [stderr]    --> src/CPU.rs:170:8
[INFO] [stderr]     |
[INFO] [stderr] 170 |     fn OR (&mut self, x: u16, y: u16) {
[INFO] [stderr]     |        ^^ help: convert the identifier to snake case: `or`
[INFO] [stderr] 
[INFO] [stderr] warning: method `AND` should have a snake case name
[INFO] [stderr]    --> src/CPU.rs:175:8
[INFO] [stderr]     |
[INFO] [stderr] 175 |     fn AND (&mut self, x: u16, y: u16) {
[INFO] [stderr]     |        ^^^ help: convert the identifier to snake case: `and`
[INFO] [stderr] 
[INFO] [stderr] warning: method `XOR` should have a snake case name
[INFO] [stderr]    --> src/CPU.rs:180:8
[INFO] [stderr]     |
[INFO] [stderr] 180 |     fn XOR (&mut self, x: u16, y: u16) {
[INFO] [stderr]     |        ^^^ help: convert the identifier to snake case: `xor`
[INFO] [stderr] 
[INFO] [stderr] warning: method `ADD_xy` should have a snake case name
[INFO] [stderr]    --> src/CPU.rs:185:8
[INFO] [stderr]     |
[INFO] [stderr] 185 |     fn ADD_xy (&mut self, x: u16, y: u16) {
[INFO] [stderr]     |        ^^^^^^ help: convert the identifier to snake case: `add_xy`
[INFO] [stderr] 
[INFO] [stderr] warning: method `SUB` should have a snake case name
[INFO] [stderr]    --> src/CPU.rs:190:8
[INFO] [stderr]     |
[INFO] [stderr] 190 |     fn SUB (&mut self, x: u16, y: u16) {
[INFO] [stderr]     |        ^^^ help: convert the identifier to snake case: `sub`
[INFO] [stderr] 
[INFO] [stderr] warning: method `SHR` should have a snake case name
[INFO] [stderr]    --> src/CPU.rs:200:8
[INFO] [stderr]     |
[INFO] [stderr] 200 |     fn SHR (&mut self, x: u16) {
[INFO] [stderr]     |        ^^^ help: convert the identifier to snake case: `shr`
[INFO] [stderr] 
[INFO] [stderr] warning: method `SUBN` should have a snake case name
[INFO] [stderr]    --> src/CPU.rs:206:8
[INFO] [stderr]     |
[INFO] [stderr] 206 |     fn SUBN (&mut self, x: u16, y: u16) {
[INFO] [stderr]     |        ^^^^ help: convert the identifier to snake case: `subn`
[INFO] [stderr] 
[INFO] [stderr] warning: method `SHL` should have a snake case name
[INFO] [stderr]    --> src/CPU.rs:216:8
[INFO] [stderr]     |
[INFO] [stderr] 216 |     fn SHL (&mut self, x: u16) {
[INFO] [stderr]     |        ^^^ help: convert the identifier to snake case: `shl`
[INFO] [stderr] 
[INFO] [stderr] warning: method `SNE_xy` should have a snake case name
[INFO] [stderr]    --> src/CPU.rs:222:8
[INFO] [stderr]     |
[INFO] [stderr] 222 |     fn SNE_xy (&mut self, x: u16, y: u16) {
[INFO] [stderr]     |        ^^^^^^ help: convert the identifier to snake case: `sne_xy`
[INFO] [stderr] 
[INFO] [stderr] warning: method `LD_I` should have a snake case name
[INFO] [stderr]    --> src/CPU.rs:229:8
[INFO] [stderr]     |
[INFO] [stderr] 229 |     fn LD_I (&mut self, nnn: u16) {
[INFO] [stderr]     |        ^^^^ help: convert the identifier to snake case: `ld_i`
[INFO] [stderr] 
[INFO] [stderr] warning: method `JP_V0` should have a snake case name
[INFO] [stderr]    --> src/CPU.rs:234:8
[INFO] [stderr]     |
[INFO] [stderr] 234 |     fn JP_V0 (&mut self, nnn: u16) {
[INFO] [stderr]     |        ^^^^^ help: convert the identifier to snake case: `jp_v0`
[INFO] [stderr] 
[INFO] [stderr] warning: method `RND` should have a snake case name
[INFO] [stderr]    --> src/CPU.rs:239:8
[INFO] [stderr]     |
[INFO] [stderr] 239 |     fn RND (&mut self, x: u16, kk: u16) {
[INFO] [stderr]     |        ^^^ help: convert the identifier to snake case: `rnd`
[INFO] [stderr] 
[INFO] [stderr] warning: method `SKP` should have a snake case name
[INFO] [stderr]    --> src/CPU.rs:244:8
[INFO] [stderr]     |
[INFO] [stderr] 244 |     fn SKP (&mut self, x: u16) {
[INFO] [stderr]     |        ^^^ help: convert the identifier to snake case: `skp`
[INFO] [stderr] 
[INFO] [stderr] warning: method `SKNP` should have a snake case name
[INFO] [stderr]    --> src/CPU.rs:251:8
[INFO] [stderr]     |
[INFO] [stderr] 251 |     fn SKNP (&mut self, x: u16) {
[INFO] [stderr]     |        ^^^^ help: convert the identifier to snake case: `sknp`
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable statement
[INFO] [stderr]   --> src/main.rs:29:5
[INFO] [stderr]    |
[INFO] [stderr] 29 |     println!("Hello, world!");
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unreachable_code)] on by default
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `state`
[INFO] [stderr]   --> src/CPU.rs:83:13
[INFO] [stderr]    |
[INFO] [stderr] 83 |         let state = match nibble {
[INFO] [stderr]    |             ^^^^^ help: consider prefixing with an underscore: `_state`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `bytes_read`
[INFO] [stderr]    --> src/CPU.rs:265:13
[INFO] [stderr]     |
[INFO] [stderr] 265 |         let bytes_read = if let Ok(bytes_read) = reader.read(&mut buffer) {
[INFO] [stderr]     |             ^^^^^^^^^^ help: consider prefixing with an underscore: `_bytes_read`
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `gfx`
[INFO] [stderr]   --> src/CPU.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 |     gfx: [[u8; 32]; 64],
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `delay_timer`
[INFO] [stderr]   --> src/CPU.rs:27:5
[INFO] [stderr]    |
[INFO] [stderr] 27 |     delay_timer: u8,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `sound_timer`
[INFO] [stderr]   --> src/CPU.rs:28:5
[INFO] [stderr]    |
[INFO] [stderr] 28 |     sound_timer: u8,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: module `CPU` should have a snake case name
[INFO] [stderr]   --> src/main.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 | mod CPU;
[INFO] [stderr]    |     ^^^ help: convert the identifier to snake case: `cpu`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(non_snake_case)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant `fontset` should have an upper case name
[INFO] [stderr]  --> src/CPU.rs:9:7
[INFO] [stderr]   |
[INFO] [stderr] 9 | const fontset: [u8; 80] = [
[INFO] [stderr]   |       ^^^^^^^ help: convert the identifier to upper case: `FONTSET`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(non_upper_case_globals)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `V` should have a snake case name
[INFO] [stderr]   --> src/CPU.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 26 |     V: [u8; 16], // General purpose registers
[INFO] [stderr]    |     ^ help: convert the identifier to snake case: `v`
[INFO] [stderr] 
[INFO] [stderr] warning: method `JP` should have a snake case name
[INFO] [stderr]    --> src/CPU.rs:116:8
[INFO] [stderr]     |
[INFO] [stderr] 116 |     fn JP (&mut self, nnn: u16) {
[INFO] [stderr]     |        ^^ help: convert the identifier to snake case: `jp`
[INFO] [stderr] 
[INFO] [stderr] warning: method `CALL` should have a snake case name
[INFO] [stderr]    --> src/CPU.rs:121:8
[INFO] [stderr]     |
[INFO] [stderr] 121 |     fn CALL (&mut self, nnn: u16) {
[INFO] [stderr]     |        ^^^^ help: convert the identifier to snake case: `call`
[INFO] [stderr] 
[INFO] [stderr] warning: unused arithmetic operation that must be used
[INFO] [stderr]    --> src/CPU.rs:124:9
[INFO] [stderr]     |
[INFO] [stderr] 124 |         self.sp + 1;
[INFO] [stderr]     |         ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_must_use)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method `RET` should have a snake case name
[INFO] [stderr]    --> src/CPU.rs:128:8
[INFO] [stderr]     |
[INFO] [stderr] 128 |     fn RET (&mut self) {
[INFO] [stderr]     |        ^^^ help: convert the identifier to snake case: `ret`
[INFO] [stderr] 
[INFO] [stderr] warning: method `SE` should have a snake case name
[INFO] [stderr]    --> src/CPU.rs:134:8
[INFO] [stderr]     |
[INFO] [stderr] 134 |     fn SE (&mut self, x: u16, kk: u16) {
[INFO] [stderr]     |        ^^ help: convert the identifier to snake case: `se`
[INFO] [stderr] 
[INFO] [stderr] warning: method `SNE` should have a snake case name
[INFO] [stderr]    --> src/CPU.rs:141:8
[INFO] [stderr]     |
[INFO] [stderr] 141 |     fn SNE (&mut self, x: u16, kk: u16) {
[INFO] [stderr]     |        ^^^ help: convert the identifier to snake case: `sne`
[INFO] [stderr] 
[INFO] [stderr] warning: method `SE_xy` should have a snake case name
[INFO] [stderr]    --> src/CPU.rs:148:8
[INFO] [stderr]     |
[INFO] [stderr] 148 |     fn SE_xy (&mut self, x: u16, y: u16) {
[INFO] [stderr]     |        ^^^^^ help: convert the identifier to snake case: `se_xy`
[INFO] [stderr] 
[INFO] [stderr] warning: method `LD` should have a snake case name
[INFO] [stderr]    --> src/CPU.rs:155:8
[INFO] [stderr]     |
[INFO] [stderr] 155 |     fn LD (&mut self, x: u16, kk: u16) {
[INFO] [stderr]     |        ^^ help: convert the identifier to snake case: `ld`
[INFO] [stderr] 
[INFO] [stderr] warning: method `ADD` should have a snake case name
[INFO] [stderr]    --> src/CPU.rs:160:8
[INFO] [stderr]     |
[INFO] [stderr] 160 |     fn ADD (&mut self, x: u16, kk: u16) {
[INFO] [stderr]     |        ^^^ help: convert the identifier to snake case: `add`
[INFO] [stderr] 
[INFO] [stderr] warning: method `LD_xy` should have a snake case name
[INFO] [stderr]    --> src/CPU.rs:165:8
[INFO] [stderr]     |
[INFO] [stderr] 165 |     fn LD_xy (&mut self, x: u16, y: u16) {
[INFO] [stderr]     |        ^^^^^ help: convert the identifier to snake case: `ld_xy`
[INFO] [stderr] 
[INFO] [stderr] warning: method `OR` should have a snake case name
[INFO] [stderr]    --> src/CPU.rs:170:8
[INFO] [stderr]     |
[INFO] [stderr] 170 |     fn OR (&mut self, x: u16, y: u16) {
[INFO] [stderr]     |        ^^ help: convert the identifier to snake case: `or`
[INFO] [stderr] 
[INFO] [stderr] warning: method `AND` should have a snake case name
[INFO] [stderr]    --> src/CPU.rs:175:8
[INFO] [stderr]     |
[INFO] [stderr] 175 |     fn AND (&mut self, x: u16, y: u16) {
[INFO] [stderr]     |        ^^^ help: convert the identifier to snake case: `and`
[INFO] [stderr] 
[INFO] [stderr] warning: method `XOR` should have a snake case name
[INFO] [stderr]    --> src/CPU.rs:180:8
[INFO] [stderr]     |
[INFO] [stderr] 180 |     fn XOR (&mut self, x: u16, y: u16) {
[INFO] [stderr]     |        ^^^ help: convert the identifier to snake case: `xor`
[INFO] [stderr] 
[INFO] [stderr] warning: method `ADD_xy` should have a snake case name
[INFO] [stderr]    --> src/CPU.rs:185:8
[INFO] [stderr]     |
[INFO] [stderr] 185 |     fn ADD_xy (&mut self, x: u16, y: u16) {
[INFO] [stderr]     |        ^^^^^^ help: convert the identifier to snake case: `add_xy`
[INFO] [stderr] 
[INFO] [stderr] warning: method `SUB` should have a snake case name
[INFO] [stderr]    --> src/CPU.rs:190:8
[INFO] [stderr]     |
[INFO] [stderr] 190 |     fn SUB (&mut self, x: u16, y: u16) {
[INFO] [stderr]     |        ^^^ help: convert the identifier to snake case: `sub`
[INFO] [stderr] 
[INFO] [stderr] warning: method `SHR` should have a snake case name
[INFO] [stderr]    --> src/CPU.rs:200:8
[INFO] [stderr]     |
[INFO] [stderr] 200 |     fn SHR (&mut self, x: u16) {
[INFO] [stderr]     |        ^^^ help: convert the identifier to snake case: `shr`
[INFO] [stderr] 
[INFO] [stderr] warning: method `SUBN` should have a snake case name
[INFO] [stderr]    --> src/CPU.rs:206:8
[INFO] [stderr]     |
[INFO] [stderr] 206 |     fn SUBN (&mut self, x: u16, y: u16) {
[INFO] [stderr]     |        ^^^^ help: convert the identifier to snake case: `subn`
[INFO] [stderr] 
[INFO] [stderr] warning: method `SHL` should have a snake case name
[INFO] [stderr]    --> src/CPU.rs:216:8
[INFO] [stderr]     |
[INFO] [stderr] 216 |     fn SHL (&mut self, x: u16) {
[INFO] [stderr]     |        ^^^ help: convert the identifier to snake case: `shl`
[INFO] [stderr] 
[INFO] [stderr] warning: method `SNE_xy` should have a snake case name
[INFO] [stderr]    --> src/CPU.rs:222:8
[INFO] [stderr]     |
[INFO] [stderr] 222 |     fn SNE_xy (&mut self, x: u16, y: u16) {
[INFO] [stderr]     |        ^^^^^^ help: convert the identifier to snake case: `sne_xy`
[INFO] [stderr] 
[INFO] [stderr] warning: method `LD_I` should have a snake case name
[INFO] [stderr]    --> src/CPU.rs:229:8
[INFO] [stderr]     |
[INFO] [stderr] 229 |     fn LD_I (&mut self, nnn: u16) {
[INFO] [stderr]     |        ^^^^ help: convert the identifier to snake case: `ld_i`
[INFO] [stderr] 
[INFO] [stderr] warning: method `JP_V0` should have a snake case name
[INFO] [stderr]    --> src/CPU.rs:234:8
[INFO] [stderr]     |
[INFO] [stderr] 234 |     fn JP_V0 (&mut self, nnn: u16) {
[INFO] [stderr]     |        ^^^^^ help: convert the identifier to snake case: `jp_v0`
[INFO] [stderr] 
[INFO] [stderr] warning: method `RND` should have a snake case name
[INFO] [stderr]    --> src/CPU.rs:239:8
[INFO] [stderr]     |
[INFO] [stderr] 239 |     fn RND (&mut self, x: u16, kk: u16) {
[INFO] [stderr]     |        ^^^ help: convert the identifier to snake case: `rnd`
[INFO] [stderr] 
[INFO] [stderr] warning: method `SKP` should have a snake case name
[INFO] [stderr]    --> src/CPU.rs:244:8
[INFO] [stderr]     |
[INFO] [stderr] 244 |     fn SKP (&mut self, x: u16) {
[INFO] [stderr]     |        ^^^ help: convert the identifier to snake case: `skp`
[INFO] [stderr] 
[INFO] [stderr] warning: method `SKNP` should have a snake case name
[INFO] [stderr]    --> src/CPU.rs:251:8
[INFO] [stderr]     |
[INFO] [stderr] 251 |     fn SKNP (&mut self, x: u16) {
[INFO] [stderr]     |        ^^^^ help: convert the identifier to snake case: `sknp`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 08s
[INFO] running `"docker" "inspect" "7beade8db53740d66509afe8d6d6fc8215a0be2a38847ec99c4ccdfa3cb703b7"`
[INFO] running `"docker" "rm" "-f" "7beade8db53740d66509afe8d6d6fc8215a0be2a38847ec99c4ccdfa3cb703b7"`
[INFO] [stdout] 7beade8db53740d66509afe8d6d6fc8215a0be2a38847ec99c4ccdfa3cb703b7