[INFO] cloning repository mattkuo/rusty-chips
[INFO] running `"git" "clone" "--bare" "git://github.com/mattkuo/rusty-chips.git" "work/cache/sources/gh/mattkuo/rusty-chips"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/mattkuo/rusty-chips'...
[INFO] running `"git" "clone" "work/cache/sources/gh/mattkuo/rusty-chips" "work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/mattkuo/rusty-chips"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/mattkuo/rusty-chips'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/mattkuo/rusty-chips" "work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/mattkuo/rusty-chips"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/mattkuo/rusty-chips'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c5aece29be97ab738ed0537be97b0d51661901aa
[INFO] sha for GitHub repo mattkuo/rusty-chips: c5aece29be97ab738ed0537be97b0d51661901aa
[INFO] validating manifest of mattkuo/rusty-chips 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 mattkuo/rusty-chips 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 mattkuo/rusty-chips
[INFO] finished frobbing mattkuo/rusty-chips
[INFO] frobbed toml for mattkuo/rusty-chips written to work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/mattkuo/rusty-chips/Cargo.toml
[INFO] started frobbing mattkuo/rusty-chips
[INFO] finished frobbing mattkuo/rusty-chips
[INFO] frobbed toml for mattkuo/rusty-chips written to work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/mattkuo/rusty-chips/Cargo.toml
[INFO] crate mattkuo/rusty-chips 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] error: the lock file /mnt/big/ec2-user/crater/work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/mattkuo/rusty-chips/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking mattkuo/rusty-chips 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/mattkuo/rusty-chips:/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] fe21d277b20de0728da781dec14db153daf2ef3005f835a8a2c90c6dd41e8b36
[INFO] running `"docker" "start" "-a" "fe21d277b20de0728da781dec14db153daf2ef3005f835a8a2c90c6dd41e8b36"`
[INFO] [stderr]     Checking piston-texture v0.4.0
[INFO] [stderr]     Checking pistoncore-input v0.12.0
[INFO] [stderr]     Checking gfx_core v0.3.1
[INFO] [stderr]    Compiling glutin v0.5.2
[INFO] [stderr]     Checking piston2d-graphics v0.16.0
[INFO] [stderr]     Checking pistoncore-window v0.19.0
[INFO] [stderr]     Checking pistoncore-event_loop v0.22.1
[INFO] [stderr]     Checking piston v0.22.1
[INFO] [stderr]     Checking pistoncore-glutin_window v0.26.1
[INFO] [stderr]     Checking gfx v0.11.0
[INFO] [stderr]     Checking gfx_device_gl v0.10.0
[INFO] [stderr]     Checking piston-gfx_texture v0.15.0
[INFO] [stderr]     Checking piston2d-gfx_graphics v0.28.0
[INFO] [stderr]     Checking piston_window v0.47.2
[INFO] [stderr]     Checking rusty-chips v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: field is never used: `keypad`
[INFO] [stderr]   --> src/emulator.rs:49:5
[INFO] [stderr]    |
[INFO] [stderr] 49 |     keypad: [u16; 16],
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `keypad`
[INFO] [stderr]   --> src/emulator.rs:49:5
[INFO] [stderr]    |
[INFO] [stderr] 49 |     keypad: [u16; 16],
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 37.56s
[INFO] running `"docker" "inspect" "fe21d277b20de0728da781dec14db153daf2ef3005f835a8a2c90c6dd41e8b36"`
[INFO] running `"docker" "rm" "-f" "fe21d277b20de0728da781dec14db153daf2ef3005f835a8a2c90c6dd41e8b36"`
[INFO] [stdout] fe21d277b20de0728da781dec14db153daf2ef3005f835a8a2c90c6dd41e8b36