[INFO] updating cached repository https://github.com/smt923/chip8
[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] a040c2fd498a6fa3c697f7a10b61064bbb0c9a24
[INFO] testing smt923/chip8 against beta-2020-06-03 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsmt923%2Fchip8" "/workspace/builds/worker-1/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/smt923/chip8 on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/smt923/chip8
[INFO] finished tweaking git repo https://github.com/smt923/chip8
[INFO] tweaked toml for git repo https://github.com/smt923/chip8 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/smt923/chip8 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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" "+beta-2020-06-03" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 883f1277e72e005dca67c2a150074e09cbf93c094a1c1ac4886995608588f0af
[INFO] running `"docker" "start" "-a" "883f1277e72e005dca67c2a150074e09cbf93c094a1c1ac4886995608588f0af"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling sdl2-sys v0.30.0
[INFO] [stderr]    Compiling sdl2 v0.30.0
[INFO] [stderr]    Compiling chip8 v0.0.2 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused imports: `thread`, `time`
[INFO] [stderr]  --> src/chip8.rs:4:11
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::{thread, time};
[INFO] [stderr]   |           ^^^^^^  ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]    --> src/chip8.rs:290:35
[INFO] [stderr]     |
[INFO] [stderr] 290 |                     let mut idx = (x + xl + ((y + yl as usize) * SCREEN_W));
[INFO] [stderr]     |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Chip8`
[INFO] [stderr]  --> src/display.rs:7:33
[INFO] [stderr]   |
[INFO] [stderr] 7 | use chip8::{SCREEN_H, SCREEN_W, Chip8};
[INFO] [stderr]   |                                 ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `display::Display`
[INFO] [stderr]   --> src/main.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use display::Display;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `input::Input`
[INFO] [stderr]   --> src/main.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use input::Input;
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `sdl2::pixels`
[INFO] [stderr]   --> src/main.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 | use sdl2::pixels;
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused label
[INFO] [stderr]   --> src/main.rs:43:9
[INFO] [stderr]    |
[INFO] [stderr] 43 |         'running: loop {
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_labels)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: label name `'running` shadows a label name that is already in scope
[INFO] [stderr]   --> src/main.rs:73:5
[INFO] [stderr]    |
[INFO] [stderr] 43 |         'running: loop {
[INFO] [stderr]    |         -------- first declared here
[INFO] [stderr] ...
[INFO] [stderr] 73 |     'running: loop {
[INFO] [stderr]    |     ^^^^^^^^ lifetime 'running already in scope
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'core::str::<impl str>::trim_right_matches': superseded by `trim_end_matches`
[INFO] [stderr]    --> src/chip8.rs:383:23
[INFO] [stderr]     |
[INFO] [stderr] 383 |         stack = stack.trim_right_matches(" ").to_string();
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated item: `trim_end_matches`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'core::str::<impl str>::trim_right_matches': superseded by `trim_end_matches`
[INFO] [stderr]    --> src/chip8.rs:400:21
[INFO] [stderr]     |
[INFO] [stderr] 400 |         regs = regs.trim_right_matches(" ").to_string();
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated item: `trim_end_matches`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/chip8.rs:276:13
[INFO] [stderr]     |
[INFO] [stderr] 276 |         let mut n = rand::thread_rng().gen_range(0, 255);
[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: structure field `V` should have a snake case name
[INFO] [stderr]   --> src/chip8.rs:25:5
[INFO] [stderr]    |
[INFO] [stderr] 25 |     V: [u8; 16],
[INFO] [stderr]    |     ^ help: convert the identifier to snake case (notice the capitalization): `v`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method `xA` should have a snake case name
[INFO] [stderr]    --> src/chip8.rs:268:8
[INFO] [stderr]     |
[INFO] [stderr] 268 |     fn xA(&mut self) {
[INFO] [stderr]     |        ^^ help: convert the identifier to snake case: `x_a`
[INFO] [stderr] 
[INFO] [stderr] warning: method `xB` should have a snake case name
[INFO] [stderr]    --> src/chip8.rs:272:8
[INFO] [stderr]     |
[INFO] [stderr] 272 |     fn xB(&mut self) {
[INFO] [stderr]     |        ^^ help: convert the identifier to snake case: `x_b`
[INFO] [stderr] 
[INFO] [stderr] warning: method `xC` should have a snake case name
[INFO] [stderr]    --> src/chip8.rs:275:8
[INFO] [stderr]     |
[INFO] [stderr] 275 |     fn xC(&mut self) {
[INFO] [stderr]     |        ^^ help: convert the identifier to snake case: `x_c`
[INFO] [stderr] 
[INFO] [stderr] warning: method `xD` should have a snake case name
[INFO] [stderr]    --> src/chip8.rs:280:8
[INFO] [stderr]     |
[INFO] [stderr] 280 |     fn xD(&mut self) {
[INFO] [stderr]     |        ^^ help: convert the identifier to snake case: `x_d`
[INFO] [stderr] 
[INFO] [stderr] warning: method `xE` should have a snake case name
[INFO] [stderr]    --> src/chip8.rs:306:8
[INFO] [stderr]     |
[INFO] [stderr] 306 |     fn xE(&mut self) {
[INFO] [stderr]     |        ^^ help: convert the identifier to snake case: `x_e`
[INFO] [stderr] 
[INFO] [stderr] warning: method `xF` should have a snake case name
[INFO] [stderr]    --> src/chip8.rs:314:8
[INFO] [stderr]     |
[INFO] [stderr] 314 |     fn xF(&mut self) {
[INFO] [stderr]     |        ^^ help: convert the identifier to snake case: `x_f`
[INFO] [stderr] 
[INFO] [stderr] warning: 18 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.53s
[INFO] running `"docker" "inspect" "883f1277e72e005dca67c2a150074e09cbf93c094a1c1ac4886995608588f0af"`
[INFO] running `"docker" "rm" "-f" "883f1277e72e005dca67c2a150074e09cbf93c094a1c1ac4886995608588f0af"`
[INFO] [stdout] 883f1277e72e005dca67c2a150074e09cbf93c094a1c1ac4886995608588f0af
[INFO] running `"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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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" "+beta-2020-06-03" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e41df1feb30f8766479ff39a0b2f6f7b311572421cf0c265de76c2215afb86fe
[INFO] running `"docker" "start" "-a" "e41df1feb30f8766479ff39a0b2f6f7b311572421cf0c265de76c2215afb86fe"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling chip8 v0.0.2 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused imports: `thread`, `time`
[INFO] [stderr]  --> src/chip8.rs:4:11
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::{thread, time};
[INFO] [stderr]   |           ^^^^^^  ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]    --> src/chip8.rs:290:35
[INFO] [stderr]     |
[INFO] [stderr] 290 |                     let mut idx = (x + xl + ((y + yl as usize) * SCREEN_W));
[INFO] [stderr]     |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Chip8`
[INFO] [stderr]  --> src/display.rs:7:33
[INFO] [stderr]   |
[INFO] [stderr] 7 | use chip8::{SCREEN_H, SCREEN_W, Chip8};
[INFO] [stderr]   |                                 ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `display::Display`
[INFO] [stderr]   --> src/main.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use display::Display;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `input::Input`
[INFO] [stderr]   --> src/main.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use input::Input;
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `sdl2::pixels`
[INFO] [stderr]   --> src/main.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 | use sdl2::pixels;
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused label
[INFO] [stderr]   --> src/main.rs:43:9
[INFO] [stderr]    |
[INFO] [stderr] 43 |         'running: loop {
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_labels)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: label name `'running` shadows a label name that is already in scope
[INFO] [stderr]   --> src/main.rs:73:5
[INFO] [stderr]    |
[INFO] [stderr] 43 |         'running: loop {
[INFO] [stderr]    |         -------- first declared here
[INFO] [stderr] ...
[INFO] [stderr] 73 |     'running: loop {
[INFO] [stderr]    |     ^^^^^^^^ lifetime 'running already in scope
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'core::str::<impl str>::trim_right_matches': superseded by `trim_end_matches`
[INFO] [stderr]    --> src/chip8.rs:383:23
[INFO] [stderr]     |
[INFO] [stderr] 383 |         stack = stack.trim_right_matches(" ").to_string();
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated item: `trim_end_matches`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'core::str::<impl str>::trim_right_matches': superseded by `trim_end_matches`
[INFO] [stderr]    --> src/chip8.rs:400:21
[INFO] [stderr]     |
[INFO] [stderr] 400 |         regs = regs.trim_right_matches(" ").to_string();
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated item: `trim_end_matches`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/chip8.rs:276:13
[INFO] [stderr]     |
[INFO] [stderr] 276 |         let mut n = rand::thread_rng().gen_range(0, 255);
[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: structure field `V` should have a snake case name
[INFO] [stderr]   --> src/chip8.rs:25:5
[INFO] [stderr]    |
[INFO] [stderr] 25 |     V: [u8; 16],
[INFO] [stderr]    |     ^ help: convert the identifier to snake case (notice the capitalization): `v`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method `xA` should have a snake case name
[INFO] [stderr]    --> src/chip8.rs:268:8
[INFO] [stderr]     |
[INFO] [stderr] 268 |     fn xA(&mut self) {
[INFO] [stderr]     |        ^^ help: convert the identifier to snake case: `x_a`
[INFO] [stderr] 
[INFO] [stderr] warning: method `xB` should have a snake case name
[INFO] [stderr]    --> src/chip8.rs:272:8
[INFO] [stderr]     |
[INFO] [stderr] 272 |     fn xB(&mut self) {
[INFO] [stderr]     |        ^^ help: convert the identifier to snake case: `x_b`
[INFO] [stderr] 
[INFO] [stderr] warning: method `xC` should have a snake case name
[INFO] [stderr]    --> src/chip8.rs:275:8
[INFO] [stderr]     |
[INFO] [stderr] 275 |     fn xC(&mut self) {
[INFO] [stderr]     |        ^^ help: convert the identifier to snake case: `x_c`
[INFO] [stderr] 
[INFO] [stderr] warning: method `xD` should have a snake case name
[INFO] [stderr]    --> src/chip8.rs:280:8
[INFO] [stderr]     |
[INFO] [stderr] 280 |     fn xD(&mut self) {
[INFO] [stderr]     |        ^^ help: convert the identifier to snake case: `x_d`
[INFO] [stderr] 
[INFO] [stderr] warning: method `xE` should have a snake case name
[INFO] [stderr]    --> src/chip8.rs:306:8
[INFO] [stderr]     |
[INFO] [stderr] 306 |     fn xE(&mut self) {
[INFO] [stderr]     |        ^^ help: convert the identifier to snake case: `x_e`
[INFO] [stderr] 
[INFO] [stderr] warning: method `xF` should have a snake case name
[INFO] [stderr]    --> src/chip8.rs:314:8
[INFO] [stderr]     |
[INFO] [stderr] 314 |     fn xF(&mut self) {
[INFO] [stderr]     |        ^^ help: convert the identifier to snake case: `x_f`
[INFO] [stderr] 
[INFO] [stderr] warning: 18 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.00s
[INFO] running `"docker" "inspect" "e41df1feb30f8766479ff39a0b2f6f7b311572421cf0c265de76c2215afb86fe"`
[INFO] running `"docker" "rm" "-f" "e41df1feb30f8766479ff39a0b2f6f7b311572421cf0c265de76c2215afb86fe"`
[INFO] [stdout] e41df1feb30f8766479ff39a0b2f6f7b311572421cf0c265de76c2215afb86fe
[INFO] running `"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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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" "+beta-2020-06-03" "test" "--frozen"`
[INFO] [stdout] 9df78dd9284311e1becbc3f3d0570fd4bb3853d706b0d2027b83296b7c2ba576
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "9df78dd9284311e1becbc3f3d0570fd4bb3853d706b0d2027b83296b7c2ba576"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: unused imports: `thread`, `time`
[INFO] [stderr]  --> src/chip8.rs:4:11
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::{thread, time};
[INFO] [stderr]   |           ^^^^^^  ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]    --> src/chip8.rs:290:35
[INFO] [stderr]     |
[INFO] [stderr] 290 |                     let mut idx = (x + xl + ((y + yl as usize) * SCREEN_W));
[INFO] [stderr]     |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Chip8`
[INFO] [stderr]  --> src/display.rs:7:33
[INFO] [stderr]   |
[INFO] [stderr] 7 | use chip8::{SCREEN_H, SCREEN_W, Chip8};
[INFO] [stderr]   |                                 ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `display::Display`
[INFO] [stderr]   --> src/main.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use display::Display;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `input::Input`
[INFO] [stderr]   --> src/main.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use input::Input;
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `sdl2::pixels`
[INFO] [stderr]   --> src/main.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 | use sdl2::pixels;
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused label
[INFO] [stderr]   --> src/main.rs:43:9
[INFO] [stderr]    |
[INFO] [stderr] 43 |         'running: loop {
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_labels)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: label name `'running` shadows a label name that is already in scope
[INFO] [stderr]   --> src/main.rs:73:5
[INFO] [stderr]    |
[INFO] [stderr] 43 |         'running: loop {
[INFO] [stderr]    |         -------- first declared here
[INFO] [stderr] ...
[INFO] [stderr] 73 |     'running: loop {
[INFO] [stderr]    |     ^^^^^^^^ lifetime 'running already in scope
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'core::str::<impl str>::trim_right_matches': superseded by `trim_end_matches`
[INFO] [stderr]    --> src/chip8.rs:383:23
[INFO] [stderr]     |
[INFO] [stderr] 383 |         stack = stack.trim_right_matches(" ").to_string();
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated item: `trim_end_matches`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'core::str::<impl str>::trim_right_matches': superseded by `trim_end_matches`
[INFO] [stderr]    --> src/chip8.rs:400:21
[INFO] [stderr]     |
[INFO] [stderr] 400 |         regs = regs.trim_right_matches(" ").to_string();
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated item: `trim_end_matches`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/chip8.rs:276:13
[INFO] [stderr]     |
[INFO] [stderr] 276 |         let mut n = rand::thread_rng().gen_range(0, 255);
[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: structure field `V` should have a snake case name
[INFO] [stderr]   --> src/chip8.rs:25:5
[INFO] [stderr]    |
[INFO] [stderr] 25 |     V: [u8; 16],
[INFO] [stderr]    |     ^ help: convert the identifier to snake case (notice the capitalization): `v`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method `xA` should have a snake case name
[INFO] [stderr]    --> src/chip8.rs:268:8
[INFO] [stderr]     |
[INFO] [stderr] 268 |     fn xA(&mut self) {
[INFO] [stderr]     |        ^^ help: convert the identifier to snake case: `x_a`
[INFO] [stderr] 
[INFO] [stderr] warning: method `xB` should have a snake case name
[INFO] [stderr]    --> src/chip8.rs:272:8
[INFO] [stderr]     |
[INFO] [stderr] 272 |     fn xB(&mut self) {
[INFO] [stderr]     |        ^^ help: convert the identifier to snake case: `x_b`
[INFO] [stderr] 
[INFO] [stderr] warning: method `xC` should have a snake case name
[INFO] [stderr]    --> src/chip8.rs:275:8
[INFO] [stderr]     |
[INFO] [stderr] 275 |     fn xC(&mut self) {
[INFO] [stderr]     |        ^^ help: convert the identifier to snake case: `x_c`
[INFO] [stderr] 
[INFO] [stderr] warning: method `xD` should have a snake case name
[INFO] [stderr]    --> src/chip8.rs:280:8
[INFO] [stderr]     |
[INFO] [stderr] 280 |     fn xD(&mut self) {
[INFO] [stderr]     |        ^^ help: convert the identifier to snake case: `x_d`
[INFO] [stderr] 
[INFO] [stderr] warning: method `xE` should have a snake case name
[INFO] [stderr]    --> src/chip8.rs:306:8
[INFO] [stderr]     |
[INFO] [stderr] 306 |     fn xE(&mut self) {
[INFO] [stderr]     |        ^^ help: convert the identifier to snake case: `x_e`
[INFO] [stderr] 
[INFO] [stderr] warning: method `xF` should have a snake case name
[INFO] [stderr]    --> src/chip8.rs:314:8
[INFO] [stderr]     |
[INFO] [stderr] 314 |     fn xF(&mut self) {
[INFO] [stderr]     |        ^^ help: convert the identifier to snake case: `x_f`
[INFO] [stderr] 
[INFO] [stderr] warning: 18 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/chip8-805b44944d38b3c7
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "9df78dd9284311e1becbc3f3d0570fd4bb3853d706b0d2027b83296b7c2ba576"`
[INFO] running `"docker" "rm" "-f" "9df78dd9284311e1becbc3f3d0570fd4bb3853d706b0d2027b83296b7c2ba576"`
[INFO] [stdout] 9df78dd9284311e1becbc3f3d0570fd4bb3853d706b0d2027b83296b7c2ba576