[INFO] cloning repository https://github.com/HrishabhMittal/gameboy
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/HrishabhMittal/gameboy" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHrishabhMittal%2Fgameboy", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHrishabhMittal%2Fgameboy'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] eb06f4164ed4e70bbd05f0ceab19d198421a5acf
[INFO] checking HrishabhMittal/gameboy against master#40557f6225e337d68c8d4f086557ce54135f5dd9 for pr-158447
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHrishabhMittal%2Fgameboy" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
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[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/HrishabhMittal/gameboy
[INFO] finished tweaking git repo https://github.com/HrishabhMittal/gameboy
[INFO] tweaked toml for git repo https://github.com/HrishabhMittal/gameboy written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/HrishabhMittal/gameboy on toolchain 40557f6225e337d68c8d4f086557ce54135f5dd9
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+40557f6225e337d68c8d4f086557ce54135f5dd9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/HrishabhMittal/gameboy already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+40557f6225e337d68c8d4f086557ce54135f5dd9" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3a6becf2bc8dde7f3fa57ede90e4f284e72d296796fc446bbb1e2c7cc0530151" "sleep" "infinity", kill_on_drop: false }`
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[INFO] [stdout] warning: unused variable: `address`
[INFO] [stdout]    --> src/gb.rs:103:31
[INFO] [stdout]     |
[INFO] [stdout] 103 |     fn read_memory(&mut self, address: u16) -> u8 {
[INFO] [stdout]     |                               ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_address`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Register` is never constructed
[INFO] [stdout]  --> src/gb.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | struct Register {
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]   --> src/gb.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl Register {
[INFO] [stdout]    | ------------- associated items in this implementation
[INFO] [stdout] 12 |     fn new() -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 15 |     fn init(val: u16) -> Self {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 18 |     fn get(&self) -> u16 {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 21 |     fn set(&mut self, value: u16) {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 24 |     fn lo(&self) -> u8 {
[INFO] [stdout]    |        ^^
[INFO] [stdout] ...
[INFO] [stdout] 27 |     fn set_lo(&mut self, value: u8) {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 30 |     fn hi(&self) -> u8 {
[INFO] [stdout]    |        ^^
[INFO] [stdout] ...
[INFO] [stdout] 33 |     fn set_hi(&mut self, value: u8) {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `AF` is never used
[INFO] [stdout]   --> src/gb.rs:38:7
[INFO] [stdout]    |
[INFO] [stdout] 38 | const AF: usize = 0;
[INFO] [stdout]    |       ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `BC` is never used
[INFO] [stdout]   --> src/gb.rs:39:7
[INFO] [stdout]    |
[INFO] [stdout] 39 | const BC: usize = 1;
[INFO] [stdout]    |       ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `DE` is never used
[INFO] [stdout]   --> src/gb.rs:40:7
[INFO] [stdout]    |
[INFO] [stdout] 40 | const DE: usize = 2;
[INFO] [stdout]    |       ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `HL` is never used
[INFO] [stdout]   --> src/gb.rs:41:7
[INFO] [stdout]    |
[INFO] [stdout] 41 | const HL: usize = 3;
[INFO] [stdout]    |       ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `FLAG_Z` is never used
[INFO] [stdout]   --> src/gb.rs:43:7
[INFO] [stdout]    |
[INFO] [stdout] 43 | const FLAG_Z: usize = 7;
[INFO] [stdout]    |       ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `FLAG_N` is never used
[INFO] [stdout]   --> src/gb.rs:44:7
[INFO] [stdout]    |
[INFO] [stdout] 44 | const FLAG_N: usize = 6;
[INFO] [stdout]    |       ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `FLAG_H` is never used
[INFO] [stdout]   --> src/gb.rs:45:7
[INFO] [stdout]    |
[INFO] [stdout] 45 | const FLAG_H: usize = 5;
[INFO] [stdout]    |       ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `FLAG_C` is never used
[INFO] [stdout]   --> src/gb.rs:46:7
[INFO] [stdout]    |
[INFO] [stdout] 46 | const FLAG_C: usize = 4;
[INFO] [stdout]    |       ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Emulator` is never constructed
[INFO] [stdout]   --> src/gb.rs:48:8
[INFO] [stdout]    |
[INFO] [stdout] 48 | struct Emulator {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `read_memory`, `write_memory`, and `next_op` are never used
[INFO] [stdout]    --> src/gb.rs:57:8
[INFO] [stdout]     |
[INFO] [stdout]  56 | impl Emulator {
[INFO] [stdout]     | ------------- associated items in this implementation
[INFO] [stdout]  57 |     fn new() -> Self {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 103 |     fn read_memory(&mut self, address: u16) -> u8 {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 106 |     fn write_memory(&mut self, address: u16, byte: u8) {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 123 |     fn next_op() -> i32 {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `emulate` is never used
[INFO] [stdout]    --> src/gb.rs:128:8
[INFO] [stdout]     |
[INFO] [stdout] 128 | pub fn emulate(filename: &str) -> io::Result<()> {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Emulator` is never constructed
[INFO] [stdout]  --> src/chip8.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct Emulator {
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `get_opcode`, and `next` are never used
[INFO] [stdout]   --> src/chip8.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl Emulator {
[INFO] [stdout]    | ------------- associated items in this implementation
[INFO] [stdout] 15 |     fn new() -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 31 |     fn get_opcode(&mut self) -> u16 {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 38 |     fn next(&mut self) {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `RNG` is never constructed
[INFO] [stdout]  --> src/rng.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct RNG {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `next`, and `range` are never used
[INFO] [stdout]   --> src/rng.rs:6:12
[INFO] [stdout]    |
[INFO] [stdout]  5 | impl RNG {
[INFO] [stdout]    | -------- associated items in this implementation
[INFO] [stdout]  6 |     pub fn new(seed: u64) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout]  9 |     pub fn next(&mut self) -> u64 {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 16 |     pub fn range(&mut self, min: u64, max: u64) -> u64 {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `address`
[INFO] [stdout]    --> src/gb.rs:103:31
[INFO] [stdout]     |
[INFO] [stdout] 103 |     fn read_memory(&mut self, address: u16) -> u8 {
[INFO] [stdout]     |                               ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_address`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Register` is never constructed
[INFO] [stdout]  --> src/gb.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | struct Register {
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]   --> src/gb.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl Register {
[INFO] [stdout]    | ------------- associated items in this implementation
[INFO] [stdout] 12 |     fn new() -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 15 |     fn init(val: u16) -> Self {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 18 |     fn get(&self) -> u16 {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 21 |     fn set(&mut self, value: u16) {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 24 |     fn lo(&self) -> u8 {
[INFO] [stdout]    |        ^^
[INFO] [stdout] ...
[INFO] [stdout] 27 |     fn set_lo(&mut self, value: u8) {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 30 |     fn hi(&self) -> u8 {
[INFO] [stdout]    |        ^^
[INFO] [stdout] ...
[INFO] [stdout] 33 |     fn set_hi(&mut self, value: u8) {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `AF` is never used
[INFO] [stdout]   --> src/gb.rs:38:7
[INFO] [stdout]    |
[INFO] [stdout] 38 | const AF: usize = 0;
[INFO] [stdout]    |       ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `BC` is never used
[INFO] [stdout]   --> src/gb.rs:39:7
[INFO] [stdout]    |
[INFO] [stdout] 39 | const BC: usize = 1;
[INFO] [stdout]    |       ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `DE` is never used
[INFO] [stdout]   --> src/gb.rs:40:7
[INFO] [stdout]    |
[INFO] [stdout] 40 | const DE: usize = 2;
[INFO] [stdout]    |       ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `HL` is never used
[INFO] [stdout]   --> src/gb.rs:41:7
[INFO] [stdout]    |
[INFO] [stdout] 41 | const HL: usize = 3;
[INFO] [stdout]    |       ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `FLAG_Z` is never used
[INFO] [stdout]   --> src/gb.rs:43:7
[INFO] [stdout]    |
[INFO] [stdout] 43 | const FLAG_Z: usize = 7;
[INFO] [stdout]    |       ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `FLAG_N` is never used
[INFO] [stdout]   --> src/gb.rs:44:7
[INFO] [stdout]    |
[INFO] [stdout] 44 | const FLAG_N: usize = 6;
[INFO] [stdout]    |       ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `FLAG_H` is never used
[INFO] [stdout]   --> src/gb.rs:45:7
[INFO] [stdout]    |
[INFO] [stdout] 45 | const FLAG_H: usize = 5;
[INFO] [stdout]    |       ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `FLAG_C` is never used
[INFO] [stdout]   --> src/gb.rs:46:7
[INFO] [stdout]    |
[INFO] [stdout] 46 | const FLAG_C: usize = 4;
[INFO] [stdout]    |       ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Emulator` is never constructed
[INFO] [stdout]   --> src/gb.rs:48:8
[INFO] [stdout]    |
[INFO] [stdout] 48 | struct Emulator {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `read_memory`, `write_memory`, and `next_op` are never used
[INFO] [stdout]    --> src/gb.rs:57:8
[INFO] [stdout]     |
[INFO] [stdout]  56 | impl Emulator {
[INFO] [stdout]     | ------------- associated items in this implementation
[INFO] [stdout]  57 |     fn new() -> Self {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 103 |     fn read_memory(&mut self, address: u16) -> u8 {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 106 |     fn write_memory(&mut self, address: u16, byte: u8) {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 123 |     fn next_op() -> i32 {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `emulate` is never used
[INFO] [stdout]    --> src/gb.rs:128:8
[INFO] [stdout]     |
[INFO] [stdout] 128 | pub fn emulate(filename: &str) -> io::Result<()> {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Emulator` is never constructed
[INFO] [stdout]  --> src/chip8.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct Emulator {
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `get_opcode`, and `next` are never used
[INFO] [stdout]   --> src/chip8.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl Emulator {
[INFO] [stdout]    | ------------- associated items in this implementation
[INFO] [stdout] 15 |     fn new() -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 31 |     fn get_opcode(&mut self) -> u16 {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 38 |     fn next(&mut self) {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `RNG` is never constructed
[INFO] [stdout]  --> src/rng.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct RNG {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `next`, and `range` are never used
[INFO] [stdout]   --> src/rng.rs:6:12
[INFO] [stdout]    |
[INFO] [stdout]  5 | impl RNG {
[INFO] [stdout]    | -------- associated items in this implementation
[INFO] [stdout]  6 |     pub fn new(seed: u64) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout]  9 |     pub fn next(&mut self) -> u64 {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 16 |     pub fn range(&mut self, min: u64, max: u64) -> u64 {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 06s
[INFO] running `Command { std: "docker" "inspect" "a53d9302aba0789f46f2db6dcdea22a0c8bb1fe7da770b157019349be42d2de9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a53d9302aba0789f46f2db6dcdea22a0c8bb1fe7da770b157019349be42d2de9", kill_on_drop: false }`
[INFO] [stdout] a53d9302aba0789f46f2db6dcdea22a0c8bb1fe7da770b157019349be42d2de9
