Dec 11 11:17:28.197 INFO checking ratschance/chip-8 against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 11 11:17:28.197 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-6/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56677/master#3a75e80557a103497cffbcab395a2f37061a77ea:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +3a75e80557a103497cffbcab395a2f37061a77ea-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 11 11:17:28.642 INFO [stdout] 00af9ccc7c4f6ef1b2d79bc2ab476394b143694bcf6a2adc0f4600e8143788db
Dec 11 11:17:28.644 INFO running `"docker" "start" "-a" "00af9ccc7c4f6ef1b2d79bc2ab476394b143694bcf6a2adc0f4600e8143788db"`
Dec 11 11:17:30.872 INFO [stderr] usermod: no changes
Dec 11 11:17:30.928 INFO [stderr]     Checking chip-8 v0.1.0 (/source)
Dec 11 11:17:31.487 INFO [stderr] warning: unused variable: `loc`
Dec 11 11:17:31.487 INFO [stderr]   --> src/cpu.rs:59:21
Dec 11 11:17:31.487 INFO [stderr]    |
Dec 11 11:17:31.487 INFO [stderr] 59 |                 let loc = opcode & 0xfff;
Dec 11 11:17:31.487 INFO [stderr]    |                     ^^^ help: consider using `_loc` instead
Dec 11 11:17:31.487 INFO [stderr]    |
Dec 11 11:17:31.487 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 11 11:17:31.487 INFO [stderr] 
Dec 11 11:17:31.487 INFO [stderr] warning: unused variable: `loc`
Dec 11 11:17:31.487 INFO [stderr]   --> src/cpu.rs:64:21
Dec 11 11:17:31.487 INFO [stderr]    |
Dec 11 11:17:31.487 INFO [stderr] 64 |                 let loc = opcode & 0xfff;
Dec 11 11:17:31.487 INFO [stderr]    |                     ^^^ help: consider using `_loc` instead
Dec 11 11:17:31.487 INFO [stderr] 
Dec 11 11:17:31.487 INFO [stderr] warning: unused variable: `loc`
Dec 11 11:17:31.487 INFO [stderr]    --> src/cpu.rs:121:21
Dec 11 11:17:31.487 INFO [stderr]     |
Dec 11 11:17:31.487 INFO [stderr] 121 |                 let loc = opcode & 0xfff;
Dec 11 11:17:31.488 INFO [stderr]     |                     ^^^ help: consider using `_loc` instead
Dec 11 11:17:31.488 INFO [stderr] 
Dec 11 11:17:31.488 INFO [stderr] warning: unused variable: `x`
Dec 11 11:17:31.488 INFO [stderr]    --> src/cpu.rs:126:21
Dec 11 11:17:31.488 INFO [stderr]     |
Dec 11 11:17:31.488 INFO [stderr] 126 |                 let x = get_nibble(2, opcode);
Dec 11 11:17:31.488 INFO [stderr]     |                     ^ help: consider using `_x` instead
Dec 11 11:17:31.488 INFO [stderr] 
Dec 11 11:17:31.488 INFO [stderr] warning: unused variable: `val`
Dec 11 11:17:31.488 INFO [stderr]    --> src/cpu.rs:127:21
Dec 11 11:17:31.488 INFO [stderr]     |
Dec 11 11:17:31.488 INFO [stderr] 127 |                 let val = opcode & 0xff;
Dec 11 11:17:31.488 INFO [stderr]     |                     ^^^ help: consider using `_val` instead
Dec 11 11:17:31.488 INFO [stderr] 
Dec 11 11:17:31.496 INFO [stderr] warning: unused variable: `x`
Dec 11 11:17:31.496 INFO [stderr]    --> src/cpu.rs:132:21
Dec 11 11:17:31.496 INFO [stderr]     |
Dec 11 11:17:31.496 INFO [stderr] 132 |                 let x = get_nibble(2, opcode);
Dec 11 11:17:31.497 INFO [stderr]     |                     ^ help: consider using `_x` instead
Dec 11 11:17:31.497 INFO [stderr] 
Dec 11 11:17:31.497 INFO [stderr] warning: unused variable: `y`
Dec 11 11:17:31.497 INFO [stderr]    --> src/cpu.rs:133:21
Dec 11 11:17:31.497 INFO [stderr]     |
Dec 11 11:17:31.497 INFO [stderr] 133 |                 let y = get_nibble(1, opcode);
Dec 11 11:17:31.497 INFO [stderr]     |                     ^ help: consider using `_y` instead
Dec 11 11:17:31.497 INFO [stderr] 
Dec 11 11:17:31.497 INFO [stderr] warning: unused variable: `n`
Dec 11 11:17:31.497 INFO [stderr]    --> src/cpu.rs:134:21
Dec 11 11:17:31.497 INFO [stderr]     |
Dec 11 11:17:31.497 INFO [stderr] 134 |                 let n = get_nibble(0, opcode);
Dec 11 11:17:31.497 INFO [stderr]     |                     ^ help: consider using `_n` instead
Dec 11 11:17:31.497 INFO [stderr] 
Dec 11 11:17:31.497 INFO [stderr] warning: unused variable: `x`
Dec 11 11:17:31.497 INFO [stderr]    --> src/cpu.rs:139:21
Dec 11 11:17:31.500 INFO [stderr]     |
Dec 11 11:17:31.500 INFO [stderr] 139 |                 let x = get_nibble(2, opcode);
Dec 11 11:17:31.500 INFO [stderr]     |                     ^ help: consider using `_x` instead
Dec 11 11:17:31.500 INFO [stderr] 
Dec 11 11:17:31.536 INFO [stderr] warning: struct is never constructed: `Cpu`
Dec 11 11:17:31.536 INFO [stderr]  --> src/cpu.rs:2:1
Dec 11 11:17:31.536 INFO [stderr]   |
Dec 11 11:17:31.536 INFO [stderr] 2 | struct Cpu {
Dec 11 11:17:31.536 INFO [stderr]   | ^^^^^^^^^^
Dec 11 11:17:31.548 INFO [stderr] warning: unused variable: `loc`
Dec 11 11:17:31.548 INFO [stderr]   --> src/cpu.rs:59:21
Dec 11 11:17:31.548 INFO [stderr]    |
Dec 11 11:17:31.548 INFO [stderr] 59 |                 let loc = opcode & 0xfff;
Dec 11 11:17:31.548 INFO [stderr]    |                     ^^^ help: consider using `_loc` instead
Dec 11 11:17:31.548 INFO [stderr]   |
Dec 11 11:17:31.548 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 11 11:17:31.548 INFO [stderr] 
Dec 11 11:17:31.548 INFO [stderr] warning: struct is never constructed: `Registers`
Dec 11 11:17:31.548 INFO [stderr]  --> src/cpu.rs:7:1
Dec 11 11:17:31.548 INFO [stderr]   |
Dec 11 11:17:31.548 INFO [stderr] 7 | struct Registers {
Dec 11 11:17:31.548 INFO [stderr]   | ^^^^^^^^^^^^^^^^
Dec 11 11:17:31.548 INFO [stderr] 
Dec 11 11:17:31.548 INFO [stderr] warning: method is never used: `initialize`
Dec 11 11:17:31.548 INFO [stderr]   --> src/cpu.rs:18:5
Dec 11 11:17:31.548 INFO [stderr]    |
Dec 11 11:17:31.548 INFO [stderr] 18 |     fn initialize() -> Registers {
Dec 11 11:17:31.548 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 11:17:31.548 INFO [stderr] 
Dec 11 11:17:31.548 INFO [stderr] warning: method is never used: `initialize`
Dec 11 11:17:31.548 INFO [stderr]   --> src/cpu.rs:32:5
Dec 11 11:17:31.548 INFO [stderr]    |
Dec 11 11:17:31.548 INFO [stderr] 32 |     fn initialize() -> Cpu {
Dec 11 11:17:31.548 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
Dec 11 11:17:31.548 INFO [stderr] 
Dec 11 11:17:31.548 INFO [stderr] warning: method is never used: `process_opcode`
Dec 11 11:17:31.548 INFO [stderr]   --> src/cpu.rs:39:5
Dec 11 11:17:31.548 INFO [stderr]    |
Dec 11 11:17:31.548 INFO [stderr] 39 |     fn process_opcode(&mut self, opcode: u16) {
Dec 11 11:17:31.548 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 11:17:31.548 INFO [stderr] 
Dec 11 11:17:31.548 INFO [stderr] warning: method is never used: `process_opcode_8`
Dec 11 11:17:31.548 INFO [stderr]    --> src/cpu.rs:162:5
Dec 11 11:17:31.548 INFO [stderr]     |
Dec 11 11:17:31.548 INFO [stderr] 162 |     fn process_opcode_8(&mut self, x: usize, y: usize, op: u8) {
Dec 11 11:17:31.548 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 11:17:31.548 INFO [stderr] 
Dec 11 11:17:31.548 INFO [stderr] warning: method is never used: `process_opcode_f`
Dec 11 11:17:31.548 INFO [stderr]    --> src/cpu.rs:224:5
Dec 11 11:17:31.548 INFO [stderr]     |
Dec 11 11:17:31.548 INFO [stderr] 224 |     fn process_opcode_f(&mut self, x: usize, op: u8) {
Dec 11 11:17:31.548 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 11:17:31.548 INFO [stderr] 
Dec 11 11:17:31.552 INFO [stderr] warning: function is never used: `get_nibble`
Dec 11 11:17:31.552 INFO [stderr]    --> src/cpu.rs:271:1
Dec 11 11:17:31.552 INFO [stderr]     |
Dec 11 11:17:31.552 INFO [stderr] 271 | fn get_nibble(index: u8, value: u16) -> usize {
Dec 11 11:17:31.552 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 11:17:31.552 INFO [stderr] 
Dec 11 11:17:31.552 INFO [stderr]    |
Dec 11 11:17:31.552 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 11 11:17:31.552 INFO [stderr] 
Dec 11 11:17:31.552 INFO [stderr] warning: unused variable: `loc`
Dec 11 11:17:31.552 INFO [stderr]   --> src/cpu.rs:64:21
Dec 11 11:17:31.552 INFO [stderr]    |
Dec 11 11:17:31.552 INFO [stderr] 64 |                 let loc = opcode & 0xfff;
Dec 11 11:17:31.552 INFO [stderr]    |                     ^^^ help: consider using `_loc` instead
Dec 11 11:17:31.552 INFO [stderr] 
Dec 11 11:17:31.552 INFO [stderr] warning: unused variable: `loc`
Dec 11 11:17:31.552 INFO [stderr]    --> src/cpu.rs:121:21
Dec 11 11:17:31.552 INFO [stderr]     |
Dec 11 11:17:31.552 INFO [stderr] 121 |                 let loc = opcode & 0xfff;
Dec 11 11:17:31.552 INFO [stderr]     |                     ^^^ help: consider using `_loc` instead
Dec 11 11:17:31.552 INFO [stderr] 
Dec 11 11:17:31.560 INFO [stderr] warning: unused variable: `x`
Dec 11 11:17:31.560 INFO [stderr]    --> src/cpu.rs:126:21
Dec 11 11:17:31.560 INFO [stderr]     |
Dec 11 11:17:31.560 INFO [stderr] 126 |                 let x = get_nibble(2, opcode);
Dec 11 11:17:31.560 INFO [stderr]     |                     ^ help: consider using `_x` instead
Dec 11 11:17:31.560 INFO [stderr] 
Dec 11 11:17:31.560 INFO [stderr] warning: unused variable: `val`
Dec 11 11:17:31.560 INFO [stderr]    --> src/cpu.rs:127:21
Dec 11 11:17:31.560 INFO [stderr]     |
Dec 11 11:17:31.560 INFO [stderr] 127 |                 let val = opcode & 0xff;
Dec 11 11:17:31.560 INFO [stderr]     |                     ^^^ help: consider using `_val` instead
Dec 11 11:17:31.560 INFO [stderr] 
Dec 11 11:17:31.560 INFO [stderr] warning: unused variable: `x`
Dec 11 11:17:31.560 INFO [stderr]    --> src/cpu.rs:132:21
Dec 11 11:17:31.560 INFO [stderr]     |
Dec 11 11:17:31.560 INFO [stderr] 132 |                 let x = get_nibble(2, opcode);
Dec 11 11:17:31.560 INFO [stderr]     |                     ^ help: consider using `_x` instead
Dec 11 11:17:31.560 INFO [stderr] 
Dec 11 11:17:31.560 INFO [stderr] warning: unused variable: `y`
Dec 11 11:17:31.560 INFO [stderr]    --> src/cpu.rs:133:21
Dec 11 11:17:31.560 INFO [stderr]     |
Dec 11 11:17:31.560 INFO [stderr] 133 |                 let y = get_nibble(1, opcode);
Dec 11 11:17:31.560 INFO [stderr]     |                     ^ help: consider using `_y` instead
Dec 11 11:17:31.560 INFO [stderr] 
Dec 11 11:17:31.560 INFO [stderr] warning: unused variable: `n`
Dec 11 11:17:31.560 INFO [stderr]    --> src/cpu.rs:134:21
Dec 11 11:17:31.560 INFO [stderr]     |
Dec 11 11:17:31.560 INFO [stderr] 134 |                 let n = get_nibble(0, opcode);
Dec 11 11:17:31.560 INFO [stderr]     |                     ^ help: consider using `_n` instead
Dec 11 11:17:31.560 INFO [stderr] 
Dec 11 11:17:31.560 INFO [stderr] warning: unused variable: `x`
Dec 11 11:17:31.560 INFO [stderr]    --> src/cpu.rs:139:21
Dec 11 11:17:31.560 INFO [stderr]     |
Dec 11 11:17:31.560 INFO [stderr] 139 |                 let x = get_nibble(2, opcode);
Dec 11 11:17:31.560 INFO [stderr]     |                     ^ help: consider using `_x` instead
Dec 11 11:17:31.568 INFO [stderr] 
Dec 11 11:17:31.608 INFO [stderr] warning: struct is never constructed: `Cpu`
Dec 11 11:17:31.608 INFO [stderr]  --> src/cpu.rs:2:1
Dec 11 11:17:31.608 INFO [stderr]   |
Dec 11 11:17:31.608 INFO [stderr] 2 | struct Cpu {
Dec 11 11:17:31.608 INFO [stderr]   | ^^^^^^^^^^
Dec 11 11:17:31.608 INFO [stderr]   |
Dec 11 11:17:31.609 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 11 11:17:31.609 INFO [stderr] 
Dec 11 11:17:31.609 INFO [stderr] warning: struct is never constructed: `Registers`
Dec 11 11:17:31.609 INFO [stderr]  --> src/cpu.rs:7:1
Dec 11 11:17:31.609 INFO [stderr]   |
Dec 11 11:17:31.609 INFO [stderr] 7 | struct Registers {
Dec 11 11:17:31.609 INFO [stderr]   | ^^^^^^^^^^^^^^^^
Dec 11 11:17:31.609 INFO [stderr] 
Dec 11 11:17:31.609 INFO [stderr] warning: method is never used: `initialize`
Dec 11 11:17:31.609 INFO [stderr]   --> src/cpu.rs:18:5
Dec 11 11:17:31.609 INFO [stderr]    |
Dec 11 11:17:31.609 INFO [stderr] 18 |     fn initialize() -> Registers {
Dec 11 11:17:31.609 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 11:17:31.609 INFO [stderr] 
Dec 11 11:17:31.609 INFO [stderr] warning: method is never used: `initialize`
Dec 11 11:17:31.609 INFO [stderr]   --> src/cpu.rs:32:5
Dec 11 11:17:31.609 INFO [stderr]    |
Dec 11 11:17:31.609 INFO [stderr] 32 |     fn initialize() -> Cpu {
Dec 11 11:17:31.609 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
Dec 11 11:17:31.609 INFO [stderr] 
Dec 11 11:17:31.609 INFO [stderr] warning: method is never used: `process_opcode`
Dec 11 11:17:31.609 INFO [stderr]   --> src/cpu.rs:39:5
Dec 11 11:17:31.609 INFO [stderr]    |
Dec 11 11:17:31.609 INFO [stderr] 39 |     fn process_opcode(&mut self, opcode: u16) {
Dec 11 11:17:31.609 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 11:17:31.609 INFO [stderr] 
Dec 11 11:17:31.609 INFO [stderr] warning: method is never used: `process_opcode_8`
Dec 11 11:17:31.609 INFO [stderr]    --> src/cpu.rs:162:5
Dec 11 11:17:31.609 INFO [stderr]     |
Dec 11 11:17:31.609 INFO [stderr] 162 |     fn process_opcode_8(&mut self, x: usize, y: usize, op: u8) {
Dec 11 11:17:31.610 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 11:17:31.610 INFO [stderr] 
Dec 11 11:17:31.610 INFO [stderr] warning: method is never used: `process_opcode_f`
Dec 11 11:17:31.610 INFO [stderr]    --> src/cpu.rs:224:5
Dec 11 11:17:31.610 INFO [stderr]     |
Dec 11 11:17:31.610 INFO [stderr] 224 |     fn process_opcode_f(&mut self, x: usize, op: u8) {
Dec 11 11:17:31.610 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 11:17:31.610 INFO [stderr] 
Dec 11 11:17:31.610 INFO [stderr] warning: function is never used: `get_nibble`
Dec 11 11:17:31.610 INFO [stderr]    --> src/cpu.rs:271:1
Dec 11 11:17:31.610 INFO [stderr]     |
Dec 11 11:17:31.610 INFO [stderr] 271 | fn get_nibble(index: u8, value: u16) -> usize {
Dec 11 11:17:31.610 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 11:17:31.610 INFO [stderr] 
Dec 11 11:17:31.640 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.74s
Dec 11 11:17:31.644 INFO [stderr] su: No module specific data is present
Dec 11 11:17:32.906 INFO running `"docker" "inspect" "00af9ccc7c4f6ef1b2d79bc2ab476394b143694bcf6a2adc0f4600e8143788db"`
Dec 11 11:17:33.264 INFO running `"docker" "rm" "-f" "00af9ccc7c4f6ef1b2d79bc2ab476394b143694bcf6a2adc0f4600e8143788db"`
Dec 11 11:17:33.604 INFO [stdout] 00af9ccc7c4f6ef1b2d79bc2ab476394b143694bcf6a2adc0f4600e8143788db