[INFO] cloning repository BKDevelop/rusty_chip8
[INFO] running `"git" "clone" "--bare" "git://github.com/BKDevelop/rusty_chip8.git" "work/cache/sources/gh/BKDevelop/rusty_chip8"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/BKDevelop/rusty_chip8'...
[INFO] running `"git" "clone" "work/cache/sources/gh/BKDevelop/rusty_chip8" "work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/BKDevelop/rusty_chip8"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/BKDevelop/rusty_chip8'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/BKDevelop/rusty_chip8" "work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/BKDevelop/rusty_chip8"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/BKDevelop/rusty_chip8'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 3bfeacab99dec443948533850b6ad62cfd127842
[INFO] sha for GitHub repo BKDevelop/rusty_chip8: 3bfeacab99dec443948533850b6ad62cfd127842
[INFO] validating manifest of BKDevelop/rusty_chip8 on toolchain master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of BKDevelop/rusty_chip8 on toolchain try#8f81d0bf6baf07b92f1246696722485c4ca0b049
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing BKDevelop/rusty_chip8
[INFO] finished frobbing BKDevelop/rusty_chip8
[INFO] frobbed toml for BKDevelop/rusty_chip8 written to work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/BKDevelop/rusty_chip8/Cargo.toml
[INFO] started frobbing BKDevelop/rusty_chip8
[INFO] finished frobbing BKDevelop/rusty_chip8
[INFO] frobbed toml for BKDevelop/rusty_chip8 written to work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/BKDevelop/rusty_chip8/Cargo.toml
[INFO] crate BKDevelop/rusty_chip8 already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking BKDevelop/rusty_chip8 against try#8f81d0bf6baf07b92f1246696722485c4ca0b049 for pr-62008
[INFO] running `"docker" "create" "-v" "/mnt/big/ec2-user/crater/work/local/target-dirs/pr-62008/worker-2/try#8f81d0bf6baf07b92f1246696722485c4ca0b049:/opt/crater/target:rw,Z" "-v" "/mnt/big/ec2-user/crater/work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/BKDevelop/rusty_chip8:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/ec2-user/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/ec2-user/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" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 375e6c845c6e004fa3637cf688fa0d4443a4e21199b02b12dfc07079dbc79402
[INFO] running `"docker" "start" "-a" "375e6c845c6e004fa3637cf688fa0d4443a4e21199b02b12dfc07079dbc79402"`
[INFO] [stderr]    Compiling num-derive v0.2.4
[INFO] [stderr]     Checking piston2d-graphics v0.30.0
[INFO] [stderr]     Checking pistoncore-input v0.24.0
[INFO] [stderr]     Checking pistoncore-window v0.37.0
[INFO] [stderr]     Checking tiff v0.2.2
[INFO] [stderr]     Checking pistoncore-event_loop v0.42.0
[INFO] [stderr]     Checking pistoncore-glutin_window v0.54.0
[INFO] [stderr]     Checking image v0.21.1
[INFO] [stderr]     Checking piston v0.42.0
[INFO] [stderr]     Checking piston2d-opengl_graphics v0.59.0
[INFO] [stderr]     Checking rusty_chip8 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::fs`
[INFO] [stderr]  --> src/main.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::fs;
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fs`
[INFO] [stderr]  --> src/main.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::fs;
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]   --> src/chip8/display.rs:14:24
[INFO] [stderr]    |
[INFO] [stderr] 14 |         while let Some(e) = events.next(&mut window) {}
[INFO] [stderr]    |                        ^ help: consider prefixing with an underscore: `_e`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `display_memory`
[INFO] [stderr]   --> src/chip8/display.rs:20:34
[INFO] [stderr]    |
[INFO] [stderr] 20 |     pub fn update_display(&self, display_memory: Vec<u8>) {
[INFO] [stderr]    |                                  ^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_display_memory`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `load_game`
[INFO] [stderr]   --> src/chip8/memory.rs:27:5
[INFO] [stderr]    |
[INFO] [stderr] 27 |     pub fn load_game(&mut self, game_rom: Vec<u8>) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `load_game`
[INFO] [stderr]   --> src/chip8/mod.rs:45:5
[INFO] [stderr]    |
[INFO] [stderr] 45 |     pub fn load_game(&mut self, game_rom: Vec<u8>) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]   --> src/chip8/display.rs:14:24
[INFO] [stderr]    |
[INFO] [stderr] 14 |         while let Some(e) = events.next(&mut window) {}
[INFO] [stderr]    |                        ^ help: consider prefixing with an underscore: `_e`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `display_memory`
[INFO] [stderr]   --> src/chip8/display.rs:20:34
[INFO] [stderr]    |
[INFO] [stderr] 20 |     pub fn update_display(&self, display_memory: Vec<u8>) {
[INFO] [stderr]    |                                  ^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_display_memory`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `load_game`
[INFO] [stderr]   --> src/chip8/memory.rs:27:5
[INFO] [stderr]    |
[INFO] [stderr] 27 |     pub fn load_game(&mut self, game_rom: Vec<u8>) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `load_game`
[INFO] [stderr]   --> src/chip8/mod.rs:45:5
[INFO] [stderr]    |
[INFO] [stderr] 45 |     pub fn load_game(&mut self, game_rom: Vec<u8>) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.60s
[INFO] running `"docker" "inspect" "375e6c845c6e004fa3637cf688fa0d4443a4e21199b02b12dfc07079dbc79402"`
[INFO] running `"docker" "rm" "-f" "375e6c845c6e004fa3637cf688fa0d4443a4e21199b02b12dfc07079dbc79402"`
[INFO] [stdout] 375e6c845c6e004fa3637cf688fa0d4443a4e21199b02b12dfc07079dbc79402