[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] checking vancha/chippie against master#297a8018b525c28ef10ee6a91d61954839b508b9 for pr-95565
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvancha%2Fchippie" "/workspace/builds/worker-94/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-94/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/vancha/chippie on toolchain 297a8018b525c28ef10ee6a91d61954839b508b9
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+297a8018b525c28ef10ee6a91d61954839b508b9" "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-94/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" "+297a8018b525c28ef10ee6a91d61954839b508b9" "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-94/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+297a8018b525c28ef10ee6a91d61954839b508b9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f9c1511ed2bda440bcb89a3e735bee69ba83da13b4f412a4aee5c63360c6d9d5
[INFO] running `Command { std: "docker" "start" "-a" "f9c1511ed2bda440bcb89a3e735bee69ba83da13b4f412a4aee5c63360c6d9d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f9c1511ed2bda440bcb89a3e735bee69ba83da13b4f412a4aee5c63360c6d9d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f9c1511ed2bda440bcb89a3e735bee69ba83da13b4f412a4aee5c63360c6d9d5", kill_on_drop: false }`
[INFO] [stdout] f9c1511ed2bda440bcb89a3e735bee69ba83da13b4f412a4aee5c63360c6d9d5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+297a8018b525c28ef10ee6a91d61954839b508b9" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bb9623e36549011432ef23c032aca5783158b31a4b48939b7b91c4eb6bbac4fd
[INFO] running `Command { std: "docker" "start" "-a" "bb9623e36549011432ef23c032aca5783158b31a4b48939b7b91c4eb6bbac4fd", kill_on_drop: false }`
[INFO] [stderr]     Checking byteorder v1.4.2
[INFO] [stderr]     Checking 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: 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: 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: 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: 19 warnings emitted
[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 0.71s
[INFO] running `Command { std: "docker" "inspect" "bb9623e36549011432ef23c032aca5783158b31a4b48939b7b91c4eb6bbac4fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb9623e36549011432ef23c032aca5783158b31a4b48939b7b91c4eb6bbac4fd", kill_on_drop: false }`
[INFO] [stdout] bb9623e36549011432ef23c032aca5783158b31a4b48939b7b91c4eb6bbac4fd