Dec 17 18:34:57.951 INFO checking nryaskin/simulator against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 17 18:34:57.951 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-2/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/nryaskin/simulator:/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" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 17 18:34:58.472 INFO [stdout] 29947291cbc4469f56aa50caba7c7e7c359b0a90f4dbd41b2e2b9aad6d86af8a
Dec 17 18:34:58.479 INFO running `"docker" "start" "-a" "29947291cbc4469f56aa50caba7c7e7c359b0a90f4dbd41b2e2b9aad6d86af8a"`
Dec 17 18:35:00.252 INFO [stderr]     Checking disassembler v0.1.0 (/opt/crater/workdir)
Dec 17 18:35:00.536 INFO [stderr] warning: variable does not need to be mutable
Dec 17 18:35:00.537 INFO [stderr]   --> src/chip8/mod.rs:42:13
Dec 17 18:35:00.537 INFO [stderr]    |
Dec 17 18:35:00.537 INFO [stderr] 42 |         let mut file = File::open(file_path).unwrap();
Dec 17 18:35:00.537 INFO [stderr]    |             ----^^^^
Dec 17 18:35:00.537 INFO [stderr]    |             |
Dec 17 18:35:00.537 INFO [stderr]    |             help: remove this `mut`
Dec 17 18:35:00.537 INFO [stderr]    |
Dec 17 18:35:00.537 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 17 18:35:00.537 INFO [stderr] 
Dec 17 18:35:00.537 INFO [stderr] warning: field is never used: `opcode`
Dec 17 18:35:00.537 INFO [stderr]  --> src/chip8/cpu.rs:7:5
Dec 17 18:35:00.537 INFO [stderr]   |
Dec 17 18:35:00.537 INFO [stderr] 7 |     opcode : u16,
Dec 17 18:35:00.537 INFO [stderr]   |     ^^^^^^^^^^^^
Dec 17 18:35:00.537 INFO [stderr]   |
Dec 17 18:35:00.537 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 17 18:35:00.537 INFO [stderr] 
Dec 17 18:35:00.537 INFO [stderr] warning: field is never used: `index`
Dec 17 18:35:00.537 INFO [stderr]  --> src/chip8/cpu.rs:8:5
Dec 17 18:35:00.537 INFO [stderr]   |
Dec 17 18:35:00.537 INFO [stderr] 8 |     index: u16,
Dec 17 18:35:00.537 INFO [stderr]   |     ^^^^^^^^^^
Dec 17 18:35:00.537 INFO [stderr] 
Dec 17 18:35:00.537 INFO [stderr] warning: field is never used: `registers`
Dec 17 18:35:00.537 INFO [stderr]   --> src/chip8/cpu.rs:10:5
Dec 17 18:35:00.537 INFO [stderr]    |
Dec 17 18:35:00.537 INFO [stderr] 10 |     registers: [u8; CHIP8_REGISTER_COUNT], 
Dec 17 18:35:00.537 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 18:35:00.537 INFO [stderr] 
Dec 17 18:35:00.537 INFO [stderr] warning: field is never used: `stack`
Dec 17 18:35:00.537 INFO [stderr]   --> src/chip8/cpu.rs:11:5
Dec 17 18:35:00.537 INFO [stderr]    |
Dec 17 18:35:00.537 INFO [stderr] 11 |     stack: [u16; CHIP8_STACK_SIZE],
Dec 17 18:35:00.537 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 18:35:00.537 INFO [stderr] 
Dec 17 18:35:00.537 INFO [stderr] warning: field is never used: `sp`
Dec 17 18:35:00.537 INFO [stderr]   --> src/chip8/cpu.rs:12:5
Dec 17 18:35:00.537 INFO [stderr]    |
Dec 17 18:35:00.537 INFO [stderr] 12 |     sp: u16,
Dec 17 18:35:00.537 INFO [stderr]    |     ^^^^^^^
Dec 17 18:35:00.537 INFO [stderr] 
Dec 17 18:35:00.537 INFO [stderr] warning: field is never used: `delay_timer`
Dec 17 18:35:00.537 INFO [stderr]   --> src/chip8/cpu.rs:13:5
Dec 17 18:35:00.537 INFO [stderr]    |
Dec 17 18:35:00.537 INFO [stderr] 13 |     delay_timer: u8,
Dec 17 18:35:00.537 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Dec 17 18:35:00.537 INFO [stderr] 
Dec 17 18:35:00.537 INFO [stderr] warning: field is never used: `sound_timer`
Dec 17 18:35:00.537 INFO [stderr]   --> src/chip8/cpu.rs:14:5
Dec 17 18:35:00.537 INFO [stderr]    |
Dec 17 18:35:00.537 INFO [stderr] 14 |     sound_timer: u8,
Dec 17 18:35:00.537 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Dec 17 18:35:00.537 INFO [stderr] 
Dec 17 18:35:00.537 INFO [stderr] warning: field is never used: `gfx`
Dec 17 18:35:00.537 INFO [stderr]  --> src/chip8/graphics.rs:2:5
Dec 17 18:35:00.537 INFO [stderr]   |
Dec 17 18:35:00.537 INFO [stderr] 2 |     gfx: [u8; 64 * 32],
Dec 17 18:35:00.537 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^
Dec 17 18:35:00.537 INFO [stderr] 
Dec 17 18:35:00.537 INFO [stderr] warning: method is never used: `mem_read`
Dec 17 18:35:00.537 INFO [stderr]   --> src/chip8/memory.rs:21:5
Dec 17 18:35:00.537 INFO [stderr]    |
Dec 17 18:35:00.537 INFO [stderr] 21 |     pub fn mem_read(&self, addr: u16) -> u16 {
Dec 17 18:35:00.537 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 18:35:00.537 INFO [stderr] 
Dec 17 18:35:00.537 INFO [stderr] warning: method is never used: `mem_size`
Dec 17 18:35:00.537 INFO [stderr]   --> src/chip8/memory.rs:25:5
Dec 17 18:35:00.537 INFO [stderr]    |
Dec 17 18:35:00.537 INFO [stderr] 25 |     pub fn mem_size(&self) -> usize {
Dec 17 18:35:00.537 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 18:35:00.537 INFO [stderr] 
Dec 17 18:35:00.537 INFO [stderr] warning: struct is never constructed: `Keypad`
Dec 17 18:35:00.537 INFO [stderr]  --> src/chip8/keypad.rs:3:1
Dec 17 18:35:00.537 INFO [stderr]   |
Dec 17 18:35:00.537 INFO [stderr] 3 | pub struct Keypad {
Dec 17 18:35:00.537 INFO [stderr]   | ^^^^^^^^^^^^^^^^^
Dec 17 18:35:00.537 INFO [stderr] 
Dec 17 18:35:00.537 INFO [stderr] warning: field is never used: `cpu`
Dec 17 18:35:00.537 INFO [stderr]   --> src/chip8/mod.rs:15:5
Dec 17 18:35:00.537 INFO [stderr]    |
Dec 17 18:35:00.537 INFO [stderr] 15 |     cpu: CPU,
Dec 17 18:35:00.537 INFO [stderr]    |     ^^^^^^^^
Dec 17 18:35:00.537 INFO [stderr] 
Dec 17 18:35:00.537 INFO [stderr] warning: field is never used: `gr`
Dec 17 18:35:00.537 INFO [stderr]   --> src/chip8/mod.rs:17:5
Dec 17 18:35:00.538 INFO [stderr]    |
Dec 17 18:35:00.538 INFO [stderr] 17 |     gr: Graphics,
Dec 17 18:35:00.538 INFO [stderr]    |     ^^^^^^^^^^^^
Dec 17 18:35:00.538 INFO [stderr] 
Dec 17 18:35:00.538 INFO [stderr] warning: method is never used: `get_mem`
Dec 17 18:35:00.538 INFO [stderr]   --> src/chip8/mod.rs:33:5
Dec 17 18:35:00.538 INFO [stderr]    |
Dec 17 18:35:00.538 INFO [stderr] 33 |     pub fn get_mem(&self, addr: u16) -> u16 {
Dec 17 18:35:00.538 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 18:35:00.538 INFO [stderr] 
Dec 17 18:35:00.538 INFO [stderr] warning: method is never used: `load_game`
Dec 17 18:35:00.538 INFO [stderr]   --> src/chip8/mod.rs:41:5
Dec 17 18:35:00.538 INFO [stderr]    |
Dec 17 18:35:00.538 INFO [stderr] 41 |     pub fn load_game(&mut self, file_path: &String) -> io::Result<()> {
Dec 17 18:35:00.538 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 18:35:00.538 INFO [stderr] 
Dec 17 18:35:00.604 INFO [stderr] warning: variable does not need to be mutable
Dec 17 18:35:00.604 INFO [stderr]   --> src/chip8/mod.rs:42:13
Dec 17 18:35:00.604 INFO [stderr]    |
Dec 17 18:35:00.604 INFO [stderr] 42 |         let mut file = File::open(file_path).unwrap();
Dec 17 18:35:00.604 INFO [stderr]    |             ----^^^^
Dec 17 18:35:00.604 INFO [stderr]    |             |
Dec 17 18:35:00.604 INFO [stderr]    |             help: remove this `mut`
Dec 17 18:35:00.604 INFO [stderr]    |
Dec 17 18:35:00.604 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 17 18:35:00.604 INFO [stderr] 
Dec 17 18:35:00.604 INFO [stderr] warning: field is never used: `opcode`
Dec 17 18:35:00.604 INFO [stderr]  --> src/chip8/cpu.rs:7:5
Dec 17 18:35:00.604 INFO [stderr]   |
Dec 17 18:35:00.604 INFO [stderr] 7 |     opcode : u16,
Dec 17 18:35:00.604 INFO [stderr]   |     ^^^^^^^^^^^^
Dec 17 18:35:00.604 INFO [stderr]   |
Dec 17 18:35:00.604 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 17 18:35:00.604 INFO [stderr] 
Dec 17 18:35:00.604 INFO [stderr] warning: field is never used: `index`
Dec 17 18:35:00.604 INFO [stderr]  --> src/chip8/cpu.rs:8:5
Dec 17 18:35:00.604 INFO [stderr]   |
Dec 17 18:35:00.604 INFO [stderr] 8 |     index: u16,
Dec 17 18:35:00.604 INFO [stderr]   |     ^^^^^^^^^^
Dec 17 18:35:00.604 INFO [stderr] 
Dec 17 18:35:00.604 INFO [stderr] warning: field is never used: `registers`
Dec 17 18:35:00.604 INFO [stderr]   --> src/chip8/cpu.rs:10:5
Dec 17 18:35:00.604 INFO [stderr]    |
Dec 17 18:35:00.604 INFO [stderr] 10 |     registers: [u8; CHIP8_REGISTER_COUNT], 
Dec 17 18:35:00.604 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 18:35:00.604 INFO [stderr] 
Dec 17 18:35:00.604 INFO [stderr] warning: field is never used: `stack`
Dec 17 18:35:00.604 INFO [stderr]   --> src/chip8/cpu.rs:11:5
Dec 17 18:35:00.604 INFO [stderr]    |
Dec 17 18:35:00.604 INFO [stderr] 11 |     stack: [u16; CHIP8_STACK_SIZE],
Dec 17 18:35:00.604 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 18:35:00.604 INFO [stderr] 
Dec 17 18:35:00.604 INFO [stderr] warning: field is never used: `sp`
Dec 17 18:35:00.604 INFO [stderr]   --> src/chip8/cpu.rs:12:5
Dec 17 18:35:00.604 INFO [stderr]    |
Dec 17 18:35:00.604 INFO [stderr] 12 |     sp: u16,
Dec 17 18:35:00.604 INFO [stderr]    |     ^^^^^^^
Dec 17 18:35:00.604 INFO [stderr] 
Dec 17 18:35:00.604 INFO [stderr] warning: field is never used: `delay_timer`
Dec 17 18:35:00.604 INFO [stderr]   --> src/chip8/cpu.rs:13:5
Dec 17 18:35:00.604 INFO [stderr]    |
Dec 17 18:35:00.604 INFO [stderr] 13 |     delay_timer: u8,
Dec 17 18:35:00.604 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Dec 17 18:35:00.604 INFO [stderr] 
Dec 17 18:35:00.604 INFO [stderr] warning: field is never used: `sound_timer`
Dec 17 18:35:00.604 INFO [stderr]   --> src/chip8/cpu.rs:14:5
Dec 17 18:35:00.604 INFO [stderr]    |
Dec 17 18:35:00.605 INFO [stderr] 14 |     sound_timer: u8,
Dec 17 18:35:00.605 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Dec 17 18:35:00.605 INFO [stderr] 
Dec 17 18:35:00.605 INFO [stderr] warning: field is never used: `gfx`
Dec 17 18:35:00.605 INFO [stderr]  --> src/chip8/graphics.rs:2:5
Dec 17 18:35:00.605 INFO [stderr]   |
Dec 17 18:35:00.605 INFO [stderr] 2 |     gfx: [u8; 64 * 32],
Dec 17 18:35:00.605 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^
Dec 17 18:35:00.605 INFO [stderr] 
Dec 17 18:35:00.605 INFO [stderr] warning: method is never used: `mem_read`
Dec 17 18:35:00.605 INFO [stderr]   --> src/chip8/memory.rs:21:5
Dec 17 18:35:00.605 INFO [stderr]    |
Dec 17 18:35:00.605 INFO [stderr] 21 |     pub fn mem_read(&self, addr: u16) -> u16 {
Dec 17 18:35:00.605 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 18:35:00.605 INFO [stderr] 
Dec 17 18:35:00.605 INFO [stderr] warning: method is never used: `mem_size`
Dec 17 18:35:00.605 INFO [stderr]   --> src/chip8/memory.rs:25:5
Dec 17 18:35:00.605 INFO [stderr]    |
Dec 17 18:35:00.605 INFO [stderr] 25 |     pub fn mem_size(&self) -> usize {
Dec 17 18:35:00.605 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 18:35:00.605 INFO [stderr] 
Dec 17 18:35:00.605 INFO [stderr] warning: struct is never constructed: `Keypad`
Dec 17 18:35:00.605 INFO [stderr]  --> src/chip8/keypad.rs:3:1
Dec 17 18:35:00.605 INFO [stderr]   |
Dec 17 18:35:00.605 INFO [stderr] 3 | pub struct Keypad {
Dec 17 18:35:00.605 INFO [stderr]   | ^^^^^^^^^^^^^^^^^
Dec 17 18:35:00.605 INFO [stderr] 
Dec 17 18:35:00.605 INFO [stderr] warning: field is never used: `cpu`
Dec 17 18:35:00.605 INFO [stderr]   --> src/chip8/mod.rs:15:5
Dec 17 18:35:00.605 INFO [stderr]    |
Dec 17 18:35:00.605 INFO [stderr] 15 |     cpu: CPU,
Dec 17 18:35:00.605 INFO [stderr]    |     ^^^^^^^^
Dec 17 18:35:00.605 INFO [stderr] 
Dec 17 18:35:00.605 INFO [stderr] warning: field is never used: `gr`
Dec 17 18:35:00.605 INFO [stderr]   --> src/chip8/mod.rs:17:5
Dec 17 18:35:00.605 INFO [stderr]    |
Dec 17 18:35:00.605 INFO [stderr] 17 |     gr: Graphics,
Dec 17 18:35:00.605 INFO [stderr]    |     ^^^^^^^^^^^^
Dec 17 18:35:00.605 INFO [stderr] 
Dec 17 18:35:00.605 INFO [stderr] warning: method is never used: `get_mem`
Dec 17 18:35:00.605 INFO [stderr]   --> src/chip8/mod.rs:33:5
Dec 17 18:35:00.605 INFO [stderr]    |
Dec 17 18:35:00.605 INFO [stderr] 33 |     pub fn get_mem(&self, addr: u16) -> u16 {
Dec 17 18:35:00.605 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 18:35:00.605 INFO [stderr] 
Dec 17 18:35:00.605 INFO [stderr] warning: method is never used: `load_game`
Dec 17 18:35:00.605 INFO [stderr]   --> src/chip8/mod.rs:41:5
Dec 17 18:35:00.605 INFO [stderr]    |
Dec 17 18:35:00.605 INFO [stderr] 41 |     pub fn load_game(&mut self, file_path: &String) -> io::Result<()> {
Dec 17 18:35:00.605 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 18:35:00.605 INFO [stderr] 
Dec 17 18:35:00.636 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.41s
Dec 17 18:35:01.290 INFO running `"docker" "inspect" "29947291cbc4469f56aa50caba7c7e7c359b0a90f4dbd41b2e2b9aad6d86af8a"`
Dec 17 18:35:01.600 INFO running `"docker" "rm" "-f" "29947291cbc4469f56aa50caba7c7e7c359b0a90f4dbd41b2e2b9aad6d86af8a"`
Dec 17 18:35:01.928 INFO [stdout] 29947291cbc4469f56aa50caba7c7e7c359b0a90f4dbd41b2e2b9aad6d86af8a