[INFO] cloning repository https://github.com/vancha/chippie
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/vancha/chippie" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvancha%2Fchippie", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvancha%2Fchippie'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 603708e18aca1f9a78094c3d835c36c5dd50e42f
[INFO] testing vancha/chippie against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvancha%2Fchippie" "/workspace/builds/worker-18/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-18/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/vancha/chippie on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/vancha/chippie
[INFO] finished tweaking git repo https://github.com/vancha/chippie
[INFO] tweaked toml for git repo https://github.com/vancha/chippie written to /workspace/builds/worker-18/source/Cargo.toml
[INFO] crate git repo https://github.com/vancha/chippie already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "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-18/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b6b09ee0ca51c9853e5cc6b94bfa65aad8fcf44f084028a45a6961deeec051af
[INFO] running `Command { std: "docker" "start" "-a" "b6b09ee0ca51c9853e5cc6b94bfa65aad8fcf44f084028a45a6961deeec051af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b6b09ee0ca51c9853e5cc6b94bfa65aad8fcf44f084028a45a6961deeec051af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6b09ee0ca51c9853e5cc6b94bfa65aad8fcf44f084028a45a6961deeec051af", kill_on_drop: false }`
[INFO] [stdout] b6b09ee0ca51c9853e5cc6b94bfa65aad8fcf44f084028a45a6961deeec051af
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0d21b66993ebea0636a08c6282e0732972635d72c372435c428c3efe8ec756f8
[INFO] running `Command { std: "docker" "start" "-a" "0d21b66993ebea0636a08c6282e0732972635d72c372435c428c3efe8ec756f8", kill_on_drop: false }`
[INFO] [stderr]    Compiling byteorder v1.4.2
[INFO] [stderr]    Compiling chip8_emulator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `BigEndian`, `ByteOrder`, `LittleEndian`
[INFO] [stdout]  --> src/main.rs:1:17
[INFO] [stdout]   |
[INFO] [stdout] 1 | use byteorder::{BigEndian, ByteOrder, LittleEndian};
[INFO] [stdout]   |                 ^^^^^^^^^  ^^^^^^^^^  ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `CLEAR_SCREEN` should have an upper camel case name
[INFO] [stdout]    --> src/main.rs:321:5
[INFO] [stdout]     |
[INFO] [stdout] 321 |     CLEAR_SCREEN, //00E0
[INFO] [stdout]     |     ^^^^^^^^^^^^ help: convert the identifier to upper camel case: `ClearScreen`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `LOAD_REGISTER_VX` should have an upper camel case name
[INFO] [stdout]    --> src/main.rs:322:5
[INFO] [stdout]     |
[INFO] [stdout] 322 |     LOAD_REGISTER_VX(u8, u8), //6xkk puts the value kk into Vx
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `LoadRegisterVx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `ADD_TO_REGISTER` should have an upper camel case name
[INFO] [stdout]    --> src/main.rs:323:5
[INFO] [stdout]     |
[INFO] [stdout] 323 |     ADD_TO_REGISTER(u8, u8), //7xnn add value kk to vx, then store result in vx
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `AddToRegister`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `SET_INDEX_REGISTER` should have an upper camel case name
[INFO] [stdout]    --> src/main.rs:324:5
[INFO] [stdout]     |
[INFO] [stdout] 324 |     SET_INDEX_REGISTER(u16), //ANNN set index register I to nnn
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `SetIndexRegister`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: denote infinite loops with `loop { ... }`
[INFO] [stdout]    --> src/main.rs:332:5
[INFO] [stdout]     |
[INFO] [stdout] 332 |     while true {
[INFO] [stdout]     |     ^^^^^^^^^^ help: use `loop`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(while_true)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/main.rs:281:13
[INFO] [stdout]     |
[INFO] [stdout] 281 |             _ => {
[INFO] [stdout]     |             ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `location`
[INFO] [stdout]   --> src/main.rs:12:17
[INFO] [stdout]    |
[INFO] [stdout] 12 |     fn read_rom(location: &str) {}
[INFO] [stdout]    |                 ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_location`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]   --> src/main.rs:36:14
[INFO] [stdout]    |
[INFO] [stdout] 36 |         for (y, x) in buffer.chunks(2).enumerate() {
[INFO] [stdout]    |              ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/main.rs:197:13
[INFO] [stdout]     |
[INFO] [stdout] 197 |         for x in 0..64 {
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]    --> src/main.rs:198:17
[INFO] [stdout]     |
[INFO] [stdout] 198 |             for y in 0..64 {
[INFO] [stdout]     |                 ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value1`
[INFO] [stdout]    --> src/main.rs:271:21
[INFO] [stdout]     |
[INFO] [stdout] 271 |                 let value1 = self.registers.get_register(vx);
[INFO] [stdout]     |                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_value1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value2`
[INFO] [stdout]    --> src/main.rs:272:21
[INFO] [stdout]     |
[INFO] [stdout] 272 |                 let value2 = self.registers.get_register(vy);
[INFO] [stdout]     |                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_value2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `read_rom`
[INFO] [stdout]   --> src/main.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 |     fn read_rom(location: &str) {}
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `data`
[INFO] [stdout]   --> src/main.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 29 |     data: Vec<u16>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `values`
[INFO] [stdout]    --> src/main.rs:178:5
[INFO] [stdout]     |
[INFO] [stdout] 178 |     values: [u16; 16],
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `stack`
[INFO] [stdout]    --> src/main.rs:190:5
[INFO] [stdout]     |
[INFO] [stdout] 190 |     stack: Stack, //stack for keeping track of where to return to after subroutine, can go into 16 nested subroutines before stackoverflow
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `stackpointer`
[INFO] [stdout]    --> src/main.rs:191:5
[INFO] [stdout]     |
[INFO] [stdout] 191 |     stackpointer: u8, //only contains indexes to locations in the stack, so 0 through 15
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `display`
[INFO] [stdout]    --> src/main.rs:196:8
[INFO] [stdout]     |
[INFO] [stdout] 196 |     fn display(&self){
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 19 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.38s
[INFO] running `Command { std: "docker" "inspect" "0d21b66993ebea0636a08c6282e0732972635d72c372435c428c3efe8ec756f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d21b66993ebea0636a08c6282e0732972635d72c372435c428c3efe8ec756f8", kill_on_drop: false }`
[INFO] [stdout] 0d21b66993ebea0636a08c6282e0732972635d72c372435c428c3efe8ec756f8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 73f3bc4690b732b68facb4121828358051d903c3d00de74b5727f39361df107d
[INFO] running `Command { std: "docker" "start" "-a" "73f3bc4690b732b68facb4121828358051d903c3d00de74b5727f39361df107d", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling chip8_emulator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `BigEndian`, `ByteOrder`, `LittleEndian`
[INFO] [stdout]  --> src/main.rs:1:17
[INFO] [stdout]   |
[INFO] [stdout] 1 | use byteorder::{BigEndian, ByteOrder, LittleEndian};
[INFO] [stdout]   |                 ^^^^^^^^^  ^^^^^^^^^  ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `CLEAR_SCREEN` should have an upper camel case name
[INFO] [stdout]    --> src/main.rs:321:5
[INFO] [stdout]     |
[INFO] [stdout] 321 |     CLEAR_SCREEN, //00E0
[INFO] [stdout]     |     ^^^^^^^^^^^^ help: convert the identifier to upper camel case: `ClearScreen`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `LOAD_REGISTER_VX` should have an upper camel case name
[INFO] [stdout]    --> src/main.rs:322:5
[INFO] [stdout]     |
[INFO] [stdout] 322 |     LOAD_REGISTER_VX(u8, u8), //6xkk puts the value kk into Vx
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `LoadRegisterVx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `ADD_TO_REGISTER` should have an upper camel case name
[INFO] [stdout]    --> src/main.rs:323:5
[INFO] [stdout]     |
[INFO] [stdout] 323 |     ADD_TO_REGISTER(u8, u8), //7xnn add value kk to vx, then store result in vx
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `AddToRegister`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `SET_INDEX_REGISTER` should have an upper camel case name
[INFO] [stdout]    --> src/main.rs:324:5
[INFO] [stdout]     |
[INFO] [stdout] 324 |     SET_INDEX_REGISTER(u16), //ANNN set index register I to nnn
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `SetIndexRegister`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: denote infinite loops with `loop { ... }`
[INFO] [stdout]    --> src/main.rs:332:5
[INFO] [stdout]     |
[INFO] [stdout] 332 |     while true {
[INFO] [stdout]     |     ^^^^^^^^^^ help: use `loop`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(while_true)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/main.rs:281:13
[INFO] [stdout]     |
[INFO] [stdout] 281 |             _ => {
[INFO] [stdout]     |             ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `location`
[INFO] [stdout]   --> src/main.rs:12:17
[INFO] [stdout]    |
[INFO] [stdout] 12 |     fn read_rom(location: &str) {}
[INFO] [stdout]    |                 ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_location`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]   --> src/main.rs:36:14
[INFO] [stdout]    |
[INFO] [stdout] 36 |         for (y, x) in buffer.chunks(2).enumerate() {
[INFO] [stdout]    |              ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/main.rs:197:13
[INFO] [stdout]     |
[INFO] [stdout] 197 |         for x in 0..64 {
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]    --> src/main.rs:198:17
[INFO] [stdout]     |
[INFO] [stdout] 198 |             for y in 0..64 {
[INFO] [stdout]     |                 ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value1`
[INFO] [stdout]    --> src/main.rs:271:21
[INFO] [stdout]     |
[INFO] [stdout] 271 |                 let value1 = self.registers.get_register(vx);
[INFO] [stdout]     |                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_value1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value2`
[INFO] [stdout]    --> src/main.rs:272:21
[INFO] [stdout]     |
[INFO] [stdout] 272 |                 let value2 = self.registers.get_register(vy);
[INFO] [stdout]     |                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_value2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `read_rom`
[INFO] [stdout]   --> src/main.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 |     fn read_rom(location: &str) {}
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `data`
[INFO] [stdout]   --> src/main.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 29 |     data: Vec<u16>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `values`
[INFO] [stdout]    --> src/main.rs:178:5
[INFO] [stdout]     |
[INFO] [stdout] 178 |     values: [u16; 16],
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `stack`
[INFO] [stdout]    --> src/main.rs:190:5
[INFO] [stdout]     |
[INFO] [stdout] 190 |     stack: Stack, //stack for keeping track of where to return to after subroutine, can go into 16 nested subroutines before stackoverflow
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `stackpointer`
[INFO] [stdout]    --> src/main.rs:191:5
[INFO] [stdout]     |
[INFO] [stdout] 191 |     stackpointer: u8, //only contains indexes to locations in the stack, so 0 through 15
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `display`
[INFO] [stdout]    --> src/main.rs:196:8
[INFO] [stdout]     |
[INFO] [stdout] 196 |     fn display(&self){
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 19 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.36s
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/chip8_emulator-81cb6905cf93da59)
[INFO] running `Command { std: "docker" "inspect" "73f3bc4690b732b68facb4121828358051d903c3d00de74b5727f39361df107d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "73f3bc4690b732b68facb4121828358051d903c3d00de74b5727f39361df107d", kill_on_drop: false }`
[INFO] [stdout] 73f3bc4690b732b68facb4121828358051d903c3d00de74b5727f39361df107d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5fedacbc5875823721998cfcbb43c28ff24f99d61dfa5496587708bd44ca580f
[INFO] running `Command { std: "docker" "start" "-a" "5fedacbc5875823721998cfcbb43c28ff24f99d61dfa5496587708bd44ca580f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused imports: `BigEndian`, `ByteOrder`, `LittleEndian`
[INFO] [stderr]  --> src/main.rs:1:17
[INFO] [stderr]   |
[INFO] [stderr] 1 | use byteorder::{BigEndian, ByteOrder, LittleEndian};
[INFO] [stderr]   |                 ^^^^^^^^^  ^^^^^^^^^  ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant `CLEAR_SCREEN` should have an upper camel case name
[INFO] [stderr]    --> src/main.rs:321:5
[INFO] [stderr]     |
[INFO] [stderr] 321 |     CLEAR_SCREEN, //00E0
[INFO] [stderr]     |     ^^^^^^^^^^^^ help: convert the identifier to upper camel case: `ClearScreen`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant `LOAD_REGISTER_VX` should have an upper camel case name
[INFO] [stderr]    --> src/main.rs:322:5
[INFO] [stderr]     |
[INFO] [stderr] 322 |     LOAD_REGISTER_VX(u8, u8), //6xkk puts the value kk into Vx
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `LoadRegisterVx`
[INFO] [stderr] 
[INFO] [stderr] warning: variant `ADD_TO_REGISTER` should have an upper camel case name
[INFO] [stderr]    --> src/main.rs:323:5
[INFO] [stderr]     |
[INFO] [stderr] 323 |     ADD_TO_REGISTER(u8, u8), //7xnn add value kk to vx, then store result in vx
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `AddToRegister`
[INFO] [stderr] 
[INFO] [stderr] warning: variant `SET_INDEX_REGISTER` should have an upper camel case name
[INFO] [stderr]    --> src/main.rs:324:5
[INFO] [stderr]     |
[INFO] [stderr] 324 |     SET_INDEX_REGISTER(u16), //ANNN set index register I to nnn
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `SetIndexRegister`
[INFO] [stderr] 
[INFO] [stderr] warning: denote infinite loops with `loop { ... }`
[INFO] [stderr]    --> src/main.rs:332:5
[INFO] [stderr]     |
[INFO] [stderr] 332 |     while true {
[INFO] [stderr]     |     ^^^^^^^^^^ help: use `loop`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(while_true)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/main.rs:281:13
[INFO] [stderr]     |
[INFO] [stderr] 281 |             _ => {
[INFO] [stderr]     |             ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `location`
[INFO] [stderr]   --> src/main.rs:12:17
[INFO] [stderr]    |
[INFO] [stderr] 12 |     fn read_rom(location: &str) {}
[INFO] [stderr]    |                 ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_location`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `y`
[INFO] [stderr]   --> src/main.rs:36:14
[INFO] [stderr]    |
[INFO] [stderr] 36 |         for (y, x) in buffer.chunks(2).enumerate() {
[INFO] [stderr]    |              ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]    --> src/main.rs:197:13
[INFO] [stderr]     |
[INFO] [stderr] 197 |         for x in 0..64 {
[INFO] [stderr]     |             ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `y`
[INFO] [stderr]    --> src/main.rs:198:17
[INFO] [stderr]     |
[INFO] [stderr] 198 |             for y in 0..64 {
[INFO] [stderr]     |                 ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value1`
[INFO] [stderr]    --> src/main.rs:271:21
[INFO] [stderr]     |
[INFO] [stderr] 271 |                 let value1 = self.registers.get_register(vx);
[INFO] [stderr]     |                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_value1`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value2`
[INFO] [stderr]    --> src/main.rs:272:21
[INFO] [stderr]     |
[INFO] [stderr] 272 |                 let value2 = self.registers.get_register(vy);
[INFO] [stderr]     |                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_value2`
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `read_rom`
[INFO] [stderr]   --> src/main.rs:12:8
[INFO] [stderr]    |
[INFO] [stderr] 12 |     fn read_rom(location: &str) {}
[INFO] [stderr]    |        ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `data`
[INFO] [stderr]   --> src/main.rs:29:5
[INFO] [stderr]    |
[INFO] [stderr] 29 |     data: Vec<u16>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `values`
[INFO] [stderr]    --> src/main.rs:178:5
[INFO] [stderr]     |
[INFO] [stderr] 178 |     values: [u16; 16],
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `stack`
[INFO] [stderr]    --> src/main.rs:190:5
[INFO] [stderr]     |
[INFO] [stderr] 190 |     stack: Stack, //stack for keeping track of where to return to after subroutine, can go into 16 nested subroutines before stackoverflow
[INFO] [stderr]     |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `stackpointer`
[INFO] [stderr]    --> src/main.rs:191:5
[INFO] [stderr]     |
[INFO] [stderr] 191 |     stackpointer: u8, //only contains indexes to locations in the stack, so 0 through 15
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `display`
[INFO] [stderr]    --> src/main.rs:196:8
[INFO] [stderr]     |
[INFO] [stderr] 196 |     fn display(&self){
[INFO] [stderr]     |        ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `chip8_emulator` (bin "chip8_emulator" test) generated 19 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 4m 58s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/chip8_emulator-81cb6905cf93da59)
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "5fedacbc5875823721998cfcbb43c28ff24f99d61dfa5496587708bd44ca580f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5fedacbc5875823721998cfcbb43c28ff24f99d61dfa5496587708bd44ca580f", kill_on_drop: false }`
[INFO] [stdout] 5fedacbc5875823721998cfcbb43c28ff24f99d61dfa5496587708bd44ca580f