[INFO] updating cached repository nryaskin/simulator
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/nryaskin/simulator
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/nryaskin/simulator" "work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/gh/nryaskin/simulator"`
[INFO] [stderr] Cloning into 'work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/gh/nryaskin/simulator'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/nryaskin/simulator" "work/ex/pr-58592/sources/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a/gh/nryaskin/simulator"`
[INFO] [stderr] Cloning into 'work/ex/pr-58592/sources/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a/gh/nryaskin/simulator'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f5762c02126635b95f49a334f22da3b10fd3d1fc
[INFO] sha for GitHub repo nryaskin/simulator: f5762c02126635b95f49a334f22da3b10fd3d1fc
[INFO] validating manifest of nryaskin/simulator on toolchain master#f66e4697ae286985ddefc53c3a047614568458bb
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+f66e4697ae286985ddefc53c3a047614568458bb-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of nryaskin/simulator on toolchain try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c3b22200e6f5b70eb1f99ae6944d989ae17a458a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing nryaskin/simulator
[INFO] finished frobbing nryaskin/simulator
[INFO] frobbed toml for nryaskin/simulator written to work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/gh/nryaskin/simulator/Cargo.toml
[INFO] started frobbing nryaskin/simulator
[INFO] finished frobbing nryaskin/simulator
[INFO] frobbed toml for nryaskin/simulator written to work/ex/pr-58592/sources/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a/gh/nryaskin/simulator/Cargo.toml
[INFO] crate nryaskin/simulator has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+f66e4697ae286985ddefc53c3a047614568458bb-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c3b22200e6f5b70eb1f99ae6944d989ae17a458a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking nryaskin/simulator against try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a for pr-58592
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58592/worker-0/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58592/sources/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a/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" "+c3b22200e6f5b70eb1f99ae6944d989ae17a458a-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 61ab78d4d162c1baee7610a45cdaaec9461d494bf5eb92356b903843f4699a8f
[INFO] running `"docker" "start" "-a" "61ab78d4d162c1baee7610a45cdaaec9461d494bf5eb92356b903843f4699a8f"`
[INFO] [stderr]     Checking disassembler v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/chip8/mod.rs:42:13
[INFO] [stderr]    |
[INFO] [stderr] 42 |         let mut file = File::open(file_path).unwrap();
[INFO] [stderr]    |             ----^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `opcode`
[INFO] [stderr]  --> src/chip8/cpu.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     opcode : u16,
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `index`
[INFO] [stderr]  --> src/chip8/cpu.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     index: u16,
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `registers`
[INFO] [stderr]   --> src/chip8/cpu.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     registers: [u8; CHIP8_REGISTER_COUNT], 
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `stack`
[INFO] [stderr]   --> src/chip8/cpu.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     stack: [u16; CHIP8_STACK_SIZE],
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `sp`
[INFO] [stderr]   --> src/chip8/cpu.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     sp: u16,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `delay_timer`
[INFO] [stderr]   --> src/chip8/cpu.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     delay_timer: u8,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `sound_timer`
[INFO] [stderr]   --> src/chip8/cpu.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     sound_timer: u8,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `gfx`
[INFO] [stderr]  --> src/chip8/graphics.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 |     gfx: [u8; 64 * 32],
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `mem_read`
[INFO] [stderr]   --> src/chip8/memory.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 |     pub fn mem_read(&self, addr: u16) -> u16 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `mem_size`
[INFO] [stderr]   --> src/chip8/memory.rs:25:5
[INFO] [stderr]    |
[INFO] [stderr] 25 |     pub fn mem_size(&self) -> usize {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Keypad`
[INFO] [stderr]  --> src/chip8/keypad.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub struct Keypad {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `cpu`
[INFO] [stderr]   --> src/chip8/mod.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     cpu: CPU,
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `gr`
[INFO] [stderr]   --> src/chip8/mod.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     gr: Graphics,
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_mem`
[INFO] [stderr]   --> src/chip8/mod.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 |     pub fn get_mem(&self, addr: u16) -> u16 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `load_game`
[INFO] [stderr]   --> src/chip8/mod.rs:41:5
[INFO] [stderr]    |
[INFO] [stderr] 41 |     pub fn load_game(&mut self, file_path: &String) -> io::Result<()> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/chip8/mod.rs:42:13
[INFO] [stderr]    |
[INFO] [stderr] 42 |         let mut file = File::open(file_path).unwrap();
[INFO] [stderr]    |             ----^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `opcode`
[INFO] [stderr]  --> src/chip8/cpu.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     opcode : u16,
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `index`
[INFO] [stderr]  --> src/chip8/cpu.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     index: u16,
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `registers`
[INFO] [stderr]   --> src/chip8/cpu.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     registers: [u8; CHIP8_REGISTER_COUNT], 
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `stack`
[INFO] [stderr]   --> src/chip8/cpu.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     stack: [u16; CHIP8_STACK_SIZE],
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `sp`
[INFO] [stderr]   --> src/chip8/cpu.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     sp: u16,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `delay_timer`
[INFO] [stderr]   --> src/chip8/cpu.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     delay_timer: u8,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `sound_timer`
[INFO] [stderr]   --> src/chip8/cpu.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     sound_timer: u8,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `gfx`
[INFO] [stderr]  --> src/chip8/graphics.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 |     gfx: [u8; 64 * 32],
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `mem_read`
[INFO] [stderr]   --> src/chip8/memory.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 |     pub fn mem_read(&self, addr: u16) -> u16 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `mem_size`
[INFO] [stderr]   --> src/chip8/memory.rs:25:5
[INFO] [stderr]    |
[INFO] [stderr] 25 |     pub fn mem_size(&self) -> usize {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Keypad`
[INFO] [stderr]  --> src/chip8/keypad.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub struct Keypad {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `cpu`
[INFO] [stderr]   --> src/chip8/mod.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     cpu: CPU,
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `gr`
[INFO] [stderr]   --> src/chip8/mod.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     gr: Graphics,
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_mem`
[INFO] [stderr]   --> src/chip8/mod.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 |     pub fn get_mem(&self, addr: u16) -> u16 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `load_game`
[INFO] [stderr]   --> src/chip8/mod.rs:41:5
[INFO] [stderr]    |
[INFO] [stderr] 41 |     pub fn load_game(&mut self, file_path: &String) -> io::Result<()> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.51s
[INFO] running `"docker" "inspect" "61ab78d4d162c1baee7610a45cdaaec9461d494bf5eb92356b903843f4699a8f"`
[INFO] running `"docker" "rm" "-f" "61ab78d4d162c1baee7610a45cdaaec9461d494bf5eb92356b903843f4699a8f"`
[INFO] [stdout] 61ab78d4d162c1baee7610a45cdaaec9461d494bf5eb92356b903843f4699a8f