Dec 19 10:23:15.333 INFO checking ratschance/chip-8 against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 10:23:15.333 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-7/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/ratschance/chip-8:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 10:23:15.971 INFO [stdout] c7c4b43c99a8cb9b65ecef7d6eaeaccfeb82649c9d39e28dd1a9b842d863b90c
Dec 19 10:23:15.974 INFO running `"docker" "start" "-a" "c7c4b43c99a8cb9b65ecef7d6eaeaccfeb82649c9d39e28dd1a9b842d863b90c"`
Dec 19 10:23:17.288 INFO [stderr]     Checking chip-8 v0.1.0 (/opt/crater/workdir)
Dec 19 10:23:17.584 INFO [stderr] warning: unused variable: `loc`
Dec 19 10:23:17.584 INFO [stderr]   --> src/cpu.rs:59:21
Dec 19 10:23:17.584 INFO [stderr]    |
Dec 19 10:23:17.584 INFO [stderr] 59 |                 let loc = opcode & 0xfff;
Dec 19 10:23:17.584 INFO [stderr]    |                     ^^^ help: consider using `_loc` instead
Dec 19 10:23:17.584 INFO [stderr]    |
Dec 19 10:23:17.584 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 10:23:17.584 INFO [stderr] 
Dec 19 10:23:17.584 INFO [stderr] warning: unused variable: `loc`
Dec 19 10:23:17.584 INFO [stderr]   --> src/cpu.rs:64:21
Dec 19 10:23:17.584 INFO [stderr]    |
Dec 19 10:23:17.584 INFO [stderr] 64 |                 let loc = opcode & 0xfff;
Dec 19 10:23:17.584 INFO [stderr]    |                     ^^^ help: consider using `_loc` instead
Dec 19 10:23:17.585 INFO [stderr] 
Dec 19 10:23:17.585 INFO [stderr] warning: unused variable: `loc`
Dec 19 10:23:17.585 INFO [stderr]    --> src/cpu.rs:121:21
Dec 19 10:23:17.585 INFO [stderr]     |
Dec 19 10:23:17.585 INFO [stderr] 121 |                 let loc = opcode & 0xfff;
Dec 19 10:23:17.585 INFO [stderr]     |                     ^^^ help: consider using `_loc` instead
Dec 19 10:23:17.585 INFO [stderr] 
Dec 19 10:23:17.585 INFO [stderr] warning: unused variable: `x`
Dec 19 10:23:17.585 INFO [stderr]    --> src/cpu.rs:126:21
Dec 19 10:23:17.585 INFO [stderr]     |
Dec 19 10:23:17.585 INFO [stderr] 126 |                 let x = get_nibble(2, opcode);
Dec 19 10:23:17.585 INFO [stderr]     |                     ^ help: consider using `_x` instead
Dec 19 10:23:17.585 INFO [stderr] 
Dec 19 10:23:17.585 INFO [stderr] warning: unused variable: `val`
Dec 19 10:23:17.585 INFO [stderr]    --> src/cpu.rs:127:21
Dec 19 10:23:17.585 INFO [stderr]     |
Dec 19 10:23:17.585 INFO [stderr] 127 |                 let val = opcode & 0xff;
Dec 19 10:23:17.585 INFO [stderr]     |                     ^^^ help: consider using `_val` instead
Dec 19 10:23:17.585 INFO [stderr] 
Dec 19 10:23:17.585 INFO [stderr] warning: unused variable: `x`
Dec 19 10:23:17.585 INFO [stderr]    --> src/cpu.rs:132:21
Dec 19 10:23:17.585 INFO [stderr]     |
Dec 19 10:23:17.585 INFO [stderr] 132 |                 let x = get_nibble(2, opcode);
Dec 19 10:23:17.585 INFO [stderr]     |                     ^ help: consider using `_x` instead
Dec 19 10:23:17.585 INFO [stderr] 
Dec 19 10:23:17.585 INFO [stderr] warning: unused variable: `y`
Dec 19 10:23:17.585 INFO [stderr]    --> src/cpu.rs:133:21
Dec 19 10:23:17.585 INFO [stderr]     |
Dec 19 10:23:17.585 INFO [stderr] 133 |                 let y = get_nibble(1, opcode);
Dec 19 10:23:17.585 INFO [stderr]     |                     ^ help: consider using `_y` instead
Dec 19 10:23:17.585 INFO [stderr] 
Dec 19 10:23:17.585 INFO [stderr] warning: unused variable: `n`
Dec 19 10:23:17.585 INFO [stderr]    --> src/cpu.rs:134:21
Dec 19 10:23:17.585 INFO [stderr]     |
Dec 19 10:23:17.585 INFO [stderr] 134 |                 let n = get_nibble(0, opcode);
Dec 19 10:23:17.585 INFO [stderr]     |                     ^ help: consider using `_n` instead
Dec 19 10:23:17.585 INFO [stderr] 
Dec 19 10:23:17.585 INFO [stderr] warning: unused variable: `x`
Dec 19 10:23:17.585 INFO [stderr]    --> src/cpu.rs:139:21
Dec 19 10:23:17.585 INFO [stderr]     |
Dec 19 10:23:17.585 INFO [stderr] 139 |                 let x = get_nibble(2, opcode);
Dec 19 10:23:17.585 INFO [stderr]     |                     ^ help: consider using `_x` instead
Dec 19 10:23:17.585 INFO [stderr] 
Dec 19 10:23:17.588 INFO [stderr] warning: struct is never constructed: `Cpu`
Dec 19 10:23:17.588 INFO [stderr]  --> src/cpu.rs:2:1
Dec 19 10:23:17.588 INFO [stderr]   |
Dec 19 10:23:17.588 INFO [stderr] 2 | struct Cpu {
Dec 19 10:23:17.588 INFO [stderr]   | ^^^^^^^^^^
Dec 19 10:23:17.588 INFO [stderr]   |
Dec 19 10:23:17.588 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 19 10:23:17.588 INFO [stderr] 
Dec 19 10:23:17.588 INFO [stderr] warning: struct is never constructed: `Registers`
Dec 19 10:23:17.588 INFO [stderr]  --> src/cpu.rs:7:1
Dec 19 10:23:17.588 INFO [stderr]   |
Dec 19 10:23:17.588 INFO [stderr] 7 | struct Registers {
Dec 19 10:23:17.588 INFO [stderr]   | ^^^^^^^^^^^^^^^^
Dec 19 10:23:17.588 INFO [stderr] 
Dec 19 10:23:17.588 INFO [stderr] warning: method is never used: `initialize`
Dec 19 10:23:17.588 INFO [stderr]   --> src/cpu.rs:18:5
Dec 19 10:23:17.588 INFO [stderr]    |
Dec 19 10:23:17.588 INFO [stderr] 18 |     fn initialize() -> Registers {
Dec 19 10:23:17.588 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 10:23:17.588 INFO [stderr] 
Dec 19 10:23:17.589 INFO [stderr] warning: method is never used: `initialize`
Dec 19 10:23:17.589 INFO [stderr]   --> src/cpu.rs:32:5
Dec 19 10:23:17.589 INFO [stderr]    |
Dec 19 10:23:17.589 INFO [stderr] 32 |     fn initialize() -> Cpu {
Dec 19 10:23:17.589 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
Dec 19 10:23:17.589 INFO [stderr] 
Dec 19 10:23:17.589 INFO [stderr] warning: method is never used: `process_opcode`
Dec 19 10:23:17.589 INFO [stderr]   --> src/cpu.rs:39:5
Dec 19 10:23:17.589 INFO [stderr]    |
Dec 19 10:23:17.589 INFO [stderr] 39 |     fn process_opcode(&mut self, opcode: u16) {
Dec 19 10:23:17.589 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 10:23:17.589 INFO [stderr] 
Dec 19 10:23:17.589 INFO [stderr] warning: method is never used: `process_opcode_8`
Dec 19 10:23:17.589 INFO [stderr]    --> src/cpu.rs:162:5
Dec 19 10:23:17.589 INFO [stderr]     |
Dec 19 10:23:17.589 INFO [stderr] 162 |     fn process_opcode_8(&mut self, x: usize, y: usize, op: u8) {
Dec 19 10:23:17.589 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 10:23:17.589 INFO [stderr] 
Dec 19 10:23:17.589 INFO [stderr] warning: method is never used: `process_opcode_f`
Dec 19 10:23:17.589 INFO [stderr]    --> src/cpu.rs:224:5
Dec 19 10:23:17.589 INFO [stderr]     |
Dec 19 10:23:17.589 INFO [stderr] 224 |     fn process_opcode_f(&mut self, x: usize, op: u8) {
Dec 19 10:23:17.589 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 10:23:17.589 INFO [stderr] 
Dec 19 10:23:17.589 INFO [stderr] warning: function is never used: `get_nibble`
Dec 19 10:23:17.589 INFO [stderr]    --> src/cpu.rs:271:1
Dec 19 10:23:17.589 INFO [stderr]     |
Dec 19 10:23:17.589 INFO [stderr] 271 | fn get_nibble(index: u8, value: u16) -> usize {
Dec 19 10:23:17.589 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 10:23:17.589 INFO [stderr] 
Dec 19 10:23:17.720 INFO [stderr] warning: unused variable: `loc`
Dec 19 10:23:17.720 INFO [stderr]   --> src/cpu.rs:59:21
Dec 19 10:23:17.720 INFO [stderr]    |
Dec 19 10:23:17.720 INFO [stderr] 59 |                 let loc = opcode & 0xfff;
Dec 19 10:23:17.720 INFO [stderr]    |                     ^^^ help: consider using `_loc` instead
Dec 19 10:23:17.720 INFO [stderr]    |
Dec 19 10:23:17.720 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 10:23:17.720 INFO [stderr] 
Dec 19 10:23:17.720 INFO [stderr] warning: unused variable: `loc`
Dec 19 10:23:17.720 INFO [stderr]   --> src/cpu.rs:64:21
Dec 19 10:23:17.720 INFO [stderr]    |
Dec 19 10:23:17.721 INFO [stderr] 64 |                 let loc = opcode & 0xfff;
Dec 19 10:23:17.721 INFO [stderr]    |                     ^^^ help: consider using `_loc` instead
Dec 19 10:23:17.721 INFO [stderr] 
Dec 19 10:23:17.721 INFO [stderr] warning: unused variable: `loc`
Dec 19 10:23:17.721 INFO [stderr]    --> src/cpu.rs:121:21
Dec 19 10:23:17.721 INFO [stderr]     |
Dec 19 10:23:17.721 INFO [stderr] 121 |                 let loc = opcode & 0xfff;
Dec 19 10:23:17.721 INFO [stderr]     |                     ^^^ help: consider using `_loc` instead
Dec 19 10:23:17.721 INFO [stderr] 
Dec 19 10:23:17.721 INFO [stderr] warning: unused variable: `x`
Dec 19 10:23:17.721 INFO [stderr]    --> src/cpu.rs:126:21
Dec 19 10:23:17.721 INFO [stderr]     |
Dec 19 10:23:17.721 INFO [stderr] 126 |                 let x = get_nibble(2, opcode);
Dec 19 10:23:17.721 INFO [stderr]     |                     ^ help: consider using `_x` instead
Dec 19 10:23:17.721 INFO [stderr] 
Dec 19 10:23:17.721 INFO [stderr] warning: unused variable: `val`
Dec 19 10:23:17.721 INFO [stderr]    --> src/cpu.rs:127:21
Dec 19 10:23:17.721 INFO [stderr]     |
Dec 19 10:23:17.721 INFO [stderr] 127 |                 let val = opcode & 0xff;
Dec 19 10:23:17.721 INFO [stderr]     |                     ^^^ help: consider using `_val` instead
Dec 19 10:23:17.721 INFO [stderr] 
Dec 19 10:23:17.721 INFO [stderr] warning: unused variable: `x`
Dec 19 10:23:17.721 INFO [stderr]    --> src/cpu.rs:132:21
Dec 19 10:23:17.721 INFO [stderr]     |
Dec 19 10:23:17.721 INFO [stderr] 132 |                 let x = get_nibble(2, opcode);
Dec 19 10:23:17.721 INFO [stderr]     |                     ^ help: consider using `_x` instead
Dec 19 10:23:17.721 INFO [stderr] 
Dec 19 10:23:17.721 INFO [stderr] warning: unused variable: `y`
Dec 19 10:23:17.721 INFO [stderr]    --> src/cpu.rs:133:21
Dec 19 10:23:17.721 INFO [stderr]     |
Dec 19 10:23:17.721 INFO [stderr] 133 |                 let y = get_nibble(1, opcode);
Dec 19 10:23:17.721 INFO [stderr]     |                     ^ help: consider using `_y` instead
Dec 19 10:23:17.721 INFO [stderr] 
Dec 19 10:23:17.721 INFO [stderr] warning: unused variable: `n`
Dec 19 10:23:17.721 INFO [stderr]    --> src/cpu.rs:134:21
Dec 19 10:23:17.721 INFO [stderr]     |
Dec 19 10:23:17.721 INFO [stderr] 134 |                 let n = get_nibble(0, opcode);
Dec 19 10:23:17.721 INFO [stderr]     |                     ^ help: consider using `_n` instead
Dec 19 10:23:17.721 INFO [stderr] 
Dec 19 10:23:17.721 INFO [stderr] warning: unused variable: `x`
Dec 19 10:23:17.721 INFO [stderr]    --> src/cpu.rs:139:21
Dec 19 10:23:17.721 INFO [stderr]     |
Dec 19 10:23:17.721 INFO [stderr] 139 |                 let x = get_nibble(2, opcode);
Dec 19 10:23:17.721 INFO [stderr]     |                     ^ help: consider using `_x` instead
Dec 19 10:23:17.721 INFO [stderr] 
Dec 19 10:23:17.726 INFO [stderr] warning: struct is never constructed: `Cpu`
Dec 19 10:23:17.726 INFO [stderr]  --> src/cpu.rs:2:1
Dec 19 10:23:17.726 INFO [stderr]   |
Dec 19 10:23:17.726 INFO [stderr] 2 | struct Cpu {
Dec 19 10:23:17.726 INFO [stderr]   | ^^^^^^^^^^
Dec 19 10:23:17.726 INFO [stderr]   |
Dec 19 10:23:17.726 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 19 10:23:17.726 INFO [stderr] 
Dec 19 10:23:17.726 INFO [stderr] warning: struct is never constructed: `Registers`
Dec 19 10:23:17.726 INFO [stderr]  --> src/cpu.rs:7:1
Dec 19 10:23:17.726 INFO [stderr]   |
Dec 19 10:23:17.726 INFO [stderr] 7 | struct Registers {
Dec 19 10:23:17.726 INFO [stderr]   | ^^^^^^^^^^^^^^^^
Dec 19 10:23:17.726 INFO [stderr] 
Dec 19 10:23:17.726 INFO [stderr] warning: method is never used: `initialize`
Dec 19 10:23:17.726 INFO [stderr]   --> src/cpu.rs:18:5
Dec 19 10:23:17.726 INFO [stderr]    |
Dec 19 10:23:17.726 INFO [stderr] 18 |     fn initialize() -> Registers {
Dec 19 10:23:17.726 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 10:23:17.726 INFO [stderr] 
Dec 19 10:23:17.726 INFO [stderr] warning: method is never used: `initialize`
Dec 19 10:23:17.726 INFO [stderr]   --> src/cpu.rs:32:5
Dec 19 10:23:17.726 INFO [stderr]    |
Dec 19 10:23:17.726 INFO [stderr] 32 |     fn initialize() -> Cpu {
Dec 19 10:23:17.726 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
Dec 19 10:23:17.726 INFO [stderr] 
Dec 19 10:23:17.726 INFO [stderr] warning: method is never used: `process_opcode`
Dec 19 10:23:17.726 INFO [stderr]   --> src/cpu.rs:39:5
Dec 19 10:23:17.726 INFO [stderr]    |
Dec 19 10:23:17.726 INFO [stderr] 39 |     fn process_opcode(&mut self, opcode: u16) {
Dec 19 10:23:17.727 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 10:23:17.727 INFO [stderr] 
Dec 19 10:23:17.727 INFO [stderr] warning: method is never used: `process_opcode_8`
Dec 19 10:23:17.727 INFO [stderr]    --> src/cpu.rs:162:5
Dec 19 10:23:17.727 INFO [stderr]     |
Dec 19 10:23:17.727 INFO [stderr] 162 |     fn process_opcode_8(&mut self, x: usize, y: usize, op: u8) {
Dec 19 10:23:17.727 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 10:23:17.727 INFO [stderr] 
Dec 19 10:23:17.727 INFO [stderr] warning: method is never used: `process_opcode_f`
Dec 19 10:23:17.727 INFO [stderr]    --> src/cpu.rs:224:5
Dec 19 10:23:17.727 INFO [stderr]     |
Dec 19 10:23:17.727 INFO [stderr] 224 |     fn process_opcode_f(&mut self, x: usize, op: u8) {
Dec 19 10:23:17.727 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 10:23:17.727 INFO [stderr] 
Dec 19 10:23:17.727 INFO [stderr] warning: function is never used: `get_nibble`
Dec 19 10:23:17.727 INFO [stderr]    --> src/cpu.rs:271:1
Dec 19 10:23:17.727 INFO [stderr]     |
Dec 19 10:23:17.727 INFO [stderr] 271 | fn get_nibble(index: u8, value: u16) -> usize {
Dec 19 10:23:17.727 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 10:23:17.727 INFO [stderr] 
Dec 19 10:23:17.768 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.48s
Dec 19 10:23:18.574 INFO running `"docker" "inspect" "c7c4b43c99a8cb9b65ecef7d6eaeaccfeb82649c9d39e28dd1a9b842d863b90c"`
Dec 19 10:23:18.828 INFO running `"docker" "rm" "-f" "c7c4b43c99a8cb9b65ecef7d6eaeaccfeb82649c9d39e28dd1a9b842d863b90c"`
Dec 19 10:23:19.148 INFO [stdout] c7c4b43c99a8cb9b65ecef7d6eaeaccfeb82649c9d39e28dd1a9b842d863b90c