[INFO] updating cached repository https://github.com/the7thobserver/Chip8_Emulator
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 51f31d867eb261d9596eae6d550cc009174a64e4
[INFO] testing the7thobserver/Chip8_Emulator against beta-2019-09-28 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthe7thobserver%2FChip8_Emulator" "work/builds/worker-3/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/the7thobserver/Chip8_Emulator on toolchain beta-2019-09-28
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/the7thobserver/Chip8_Emulator
[INFO] finished tweaking git repo https://github.com/the7thobserver/Chip8_Emulator
[INFO] tweaked toml for git repo https://github.com/the7thobserver/Chip8_Emulator written to work/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/the7thobserver/Chip8_Emulator already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-3/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "build" "--frozen"`
[INFO] [stdout] 3ab994ceedf1af908c57ab397119141e142cafe7e0ac024e8927a2bbe129fa83
[INFO] running `"docker" "start" "-a" "3ab994ceedf1af908c57ab397119141e142cafe7e0ac024e8927a2bbe129fa83"`
[INFO] [stderr]    Compiling chip8_emulator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: expected one of `:`, `@`, or `|`, found `)`
[INFO] [stderr]   --> src/cpu.rs:19:47
[INFO] [stderr]    |
[INFO] [stderr] 19 |     fn execute_instruction(&mut self, instruction) {
[INFO] [stderr]    |                                                  ^ expected one of `:`, `@`, or `|` here
[INFO] [stderr]    |
[INFO] [stderr]    = note: anonymous parameters are removed in the 2018 edition (see RFC 1685)
[INFO] [stderr] help: if this was a parameter name, give it a type
[INFO] [stderr]    |
[INFO] [stderr] 19 |     fn execute_instruction(&mut self, instruction: TypeName) {
[INFO] [stderr]    |                                       ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] help: if this is a type, explicitly ignore the parameter name
[INFO] [stderr]    |
[INFO] [stderr] 19 |     fn execute_instruction(&mut self, _: instruction) {
[INFO] [stderr]    |                                       ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: could not compile `chip8_emulator`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "3ab994ceedf1af908c57ab397119141e142cafe7e0ac024e8927a2bbe129fa83"`
[INFO] running `"docker" "rm" "-f" "3ab994ceedf1af908c57ab397119141e142cafe7e0ac024e8927a2bbe129fa83"`
[INFO] [stdout] 3ab994ceedf1af908c57ab397119141e142cafe7e0ac024e8927a2bbe129fa83