[INFO] updating cached repository tashoecraft/chip-8
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/tashoecraft/chip-8
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/tashoecraft/chip-8" "work/ex/beta-1.38-1/sources/1.37.0/gh/tashoecraft/chip-8"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/tashoecraft/chip-8'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/tashoecraft/chip-8" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/tashoecraft/chip-8"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/tashoecraft/chip-8'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 5746f1c5f9e8b128962afb1fa5b51442d663c79f
[INFO] sha for GitHub repo tashoecraft/chip-8: 5746f1c5f9e8b128962afb1fa5b51442d663c79f
[INFO] validating manifest of tashoecraft/chip-8 on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of tashoecraft/chip-8 on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing tashoecraft/chip-8
[INFO] finished frobbing tashoecraft/chip-8
[INFO] frobbed toml for tashoecraft/chip-8 written to work/ex/beta-1.38-1/sources/1.37.0/gh/tashoecraft/chip-8/Cargo.toml
[INFO] started frobbing tashoecraft/chip-8
[INFO] finished frobbing tashoecraft/chip-8
[INFO] frobbed toml for tashoecraft/chip-8 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/tashoecraft/chip-8/Cargo.toml
[INFO] crate tashoecraft/chip-8 already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing tashoecraft/chip-8 against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/tashoecraft/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=warn" "-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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] f36447318eb7ddc789eb5cb0eca9b94f0550d08f5044df4d816a6a3dc27b3d68
[INFO] running `"docker" "start" "-a" "f36447318eb7ddc789eb5cb0eca9b94f0550d08f5044df4d816a6a3dc27b3d68"`
[INFO] [stderr]    Compiling sdl2-sys v0.32.5
[INFO] [stderr]    Compiling sdl2 v0.32.1
[INFO] [stderr]    Compiling chip-8 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `sdl2::event::Event`
[INFO] [stderr]  --> src/main.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use sdl2::event::Event;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `sdl2::keyboard::Keycode`
[INFO] [stderr]  --> src/main.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use sdl2::keyboard::Keycode;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]   --> src/main.rs:43:20
[INFO] [stderr]    |
[INFO] [stderr] 43 |     setup_graphics(&screen)
[INFO] [stderr]    |                    ^^^^^^^ types differ in mutability
[INFO] [stderr]    |
[INFO] [stderr]    = note: expected type `&mut [u8]`
[INFO] [stderr]               found type `&[u8; 2048]`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0308`.
[INFO] [stderr] error: Could not compile `chip-8`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "f36447318eb7ddc789eb5cb0eca9b94f0550d08f5044df4d816a6a3dc27b3d68"`
[INFO] running `"docker" "rm" "-f" "f36447318eb7ddc789eb5cb0eca9b94f0550d08f5044df4d816a6a3dc27b3d68"`
[INFO] [stdout] f36447318eb7ddc789eb5cb0eca9b94f0550d08f5044df4d816a6a3dc27b3d68