[INFO] cloning repository https://github.com/colbyjayallen/Chip8
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/colbyjayallen/Chip8" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcolbyjayallen%2FChip8", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcolbyjayallen%2FChip8'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bf192a335c769704968d64f4a4f19de813c43533
[INFO] testing colbyjayallen/Chip8 against master#432e145bd5a974c5b6f4dd9b352891bd7502b69d for pr-87041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcolbyjayallen%2FChip8" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/colbyjayallen/Chip8 on toolchain 432e145bd5a974c5b6f4dd9b352891bd7502b69d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/colbyjayallen/Chip8
[INFO] finished tweaking git repo https://github.com/colbyjayallen/Chip8
[INFO] tweaked toml for git repo https://github.com/colbyjayallen/Chip8 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/colbyjayallen/Chip8 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d9dbb6eb33cef3f672e63285e7fabf741b45dd3d363ca0bbfe1f952bc0c1e246
[INFO] running `Command { std: "docker" "start" "-a" "d9dbb6eb33cef3f672e63285e7fabf741b45dd3d363ca0bbfe1f952bc0c1e246", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d9dbb6eb33cef3f672e63285e7fabf741b45dd3d363ca0bbfe1f952bc0c1e246", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d9dbb6eb33cef3f672e63285e7fabf741b45dd3d363ca0bbfe1f952bc0c1e246", kill_on_drop: false }`
[INFO] [stdout] d9dbb6eb33cef3f672e63285e7fabf741b45dd3d363ca0bbfe1f952bc0c1e246
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] be263c06e392cad63591c26e49fb292fb97450760c2eb22a9352c0a3883d3fb1
[INFO] running `Command { std: "docker" "start" "-a" "be263c06e392cad63591c26e49fb292fb97450760c2eb22a9352c0a3883d3fb1", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-chip8 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct is never constructed: `Memory`
[INFO] [stdout]  --> src/memory.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Memory {
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]  --> src/memory.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 |     pub fn new() -> Memory {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `reset_memory`
[INFO] [stdout]   --> src/memory.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub fn reset_memory(&mut self) {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_at_address`
[INFO] [stdout]   --> src/memory.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub fn get_at_address(&mut self, address: usize) -> u8 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_at_address`
[INFO] [stdout]   --> src/memory.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 22 |     pub fn set_at_address(&mut self, address: usize, data: u8) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `initialize_memory`
[INFO] [stdout]   --> src/memory.rs:27:8
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub fn initialize_memory() -> [u8; 4096] {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Cpu`
[INFO] [stdout]  --> src/cpu.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Cpu {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/cpu.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 |     pub fn new() -> Cpu {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `execute_instruction`
[INFO] [stdout]   --> src/cpu.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 22 |     pub fn execute_instruction(&mut self, (a, b, c, d): (u8, u8, u8, u8)) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `op_1nnn`
[INFO] [stdout]   --> src/cpu.rs:35:8
[INFO] [stdout]    |
[INFO] [stdout] 35 |     fn op_1nnn(&mut self, new_value: u16) {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `op_6xnn`
[INFO] [stdout]   --> src/cpu.rs:39:8
[INFO] [stdout]    |
[INFO] [stdout] 39 |     fn op_6xnn(&mut self, reg_index: u8, new_value: u8) {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `op_7xnn`
[INFO] [stdout]   --> src/cpu.rs:43:8
[INFO] [stdout]    |
[INFO] [stdout] 43 |     fn op_7xnn(&mut self, reg_index: u8, value_to_add: u8) {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `op_annn`
[INFO] [stdout]   --> src/cpu.rs:47:8
[INFO] [stdout]    |
[INFO] [stdout] 47 |     fn op_annn(&mut self, new_value: u16) {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_last_byte`
[INFO] [stdout]   --> src/cpu.rs:52:8
[INFO] [stdout]    |
[INFO] [stdout] 52 | pub fn get_last_byte((_a, _b, c, d): (u8, u8, u8, u8)) -> u8 {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_last_tribble`
[INFO] [stdout]   --> src/cpu.rs:56:8
[INFO] [stdout]    |
[INFO] [stdout] 56 | pub fn get_last_tribble((_a, b, c, d): (u8, u8, u8, u8)) -> u16 {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.62s
[INFO] running `Command { std: "docker" "inspect" "be263c06e392cad63591c26e49fb292fb97450760c2eb22a9352c0a3883d3fb1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be263c06e392cad63591c26e49fb292fb97450760c2eb22a9352c0a3883d3fb1", kill_on_drop: false }`
[INFO] [stdout] be263c06e392cad63591c26e49fb292fb97450760c2eb22a9352c0a3883d3fb1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aee780863a3ca55ab4ecbd2010a02540112e96cab49aabe50e3d5244ff157816
[INFO] running `Command { std: "docker" "start" "-a" "aee780863a3ca55ab4ecbd2010a02540112e96cab49aabe50e3d5244ff157816", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-chip8 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `stack`
[INFO] [stdout]  --> src/cpu.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     stack: Vec<u16>, // Use pop and push on the stack.
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `delay_timer`
[INFO] [stdout]  --> src/cpu.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     delay_timer: u8,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `sound_timer`
[INFO] [stdout]  --> src/cpu.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     sound_timer: u8
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.72s
[INFO] running `Command { std: "docker" "inspect" "aee780863a3ca55ab4ecbd2010a02540112e96cab49aabe50e3d5244ff157816", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aee780863a3ca55ab4ecbd2010a02540112e96cab49aabe50e3d5244ff157816", kill_on_drop: false }`
[INFO] [stdout] aee780863a3ca55ab4ecbd2010a02540112e96cab49aabe50e3d5244ff157816
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 2311ea11a28bdc672e57f1439c048f8f784abe79a901eeea8ff0cee4f4a57540
[INFO] running `Command { std: "docker" "start" "-a" "2311ea11a28bdc672e57f1439c048f8f784abe79a901eeea8ff0cee4f4a57540", kill_on_drop: false }`
[INFO] [stderr] warning: field is never read: `stack`
[INFO] [stderr]  --> src/cpu.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 |     stack: Vec<u16>, // Use pop and push on the stack.
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `delay_timer`
[INFO] [stderr]  --> src/cpu.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 |     delay_timer: u8,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `sound_timer`
[INFO] [stderr]  --> src/cpu.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     sound_timer: u8
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_chip8-5d1a38161add1d1e)
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test cpu::tests::get_last_byte_sanity_check ... ok
[INFO] [stdout] test memory::tests::changed_data_is_reverted_after_resetting_memory ... ok
[INFO] [stdout] test cpu::tests::op_annn_will_update_index_register ... ok
[INFO] [stdout] test cpu::tests::op_7xnn_will_update_variable_register ... ok
[INFO] [stdout] test cpu::tests::op_6xnn_will_update_variable_register ... ok
[INFO] [stdout] test cpu::tests::op_1nnn_will_update_program_counter ... ok
[INFO] [stdout] test cpu::tests::get_last_tribble_sanity_check ... ok
[INFO] [stdout] test memory::tests::changing_data_at_address_succeeds ... ok
[INFO] [stdout] test memory::tests::initialize_memory_data_is_loaded ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "2311ea11a28bdc672e57f1439c048f8f784abe79a901eeea8ff0cee4f4a57540", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2311ea11a28bdc672e57f1439c048f8f784abe79a901eeea8ff0cee4f4a57540", kill_on_drop: false }`
[INFO] [stdout] 2311ea11a28bdc672e57f1439c048f8f784abe79a901eeea8ff0cee4f4a57540