[INFO] cloning repository https://github.com/Krystex/Chip-8
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Krystex/Chip-8" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKrystex%2FChip-8", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKrystex%2FChip-8'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 55c126bb77a58276dccc1d4c5c57a4bd8670aa96
[INFO] building Krystex/Chip-8 against try#615edd3ad1cf6871c977dc900317cb6c2070fd6b for pr-97334
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKrystex%2FChip-8" "/workspace/builds/worker-24/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-24/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Krystex/Chip-8 on toolchain 615edd3ad1cf6871c977dc900317cb6c2070fd6b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+615edd3ad1cf6871c977dc900317cb6c2070fd6b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Krystex/Chip-8
[INFO] finished tweaking git repo https://github.com/Krystex/Chip-8
[INFO] tweaked toml for git repo https://github.com/Krystex/Chip-8 written to /workspace/builds/worker-24/source/Cargo.toml
[INFO] crate git repo https://github.com/Krystex/Chip-8 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+615edd3ad1cf6871c977dc900317cb6c2070fd6b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:ac0d0aa6ec8ed129e241004a6179c99fa0d2616f50ba759c5b60bd26d0fafa02" "/opt/rustwide/cargo-home/bin/cargo" "+615edd3ad1cf6871c977dc900317cb6c2070fd6b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8c62b6f510784aee7c33dea9c0ed9b41660a7fea387ed65df3ef6de22747a1d1
[INFO] running `Command { std: "docker" "start" "-a" "8c62b6f510784aee7c33dea9c0ed9b41660a7fea387ed65df3ef6de22747a1d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8c62b6f510784aee7c33dea9c0ed9b41660a7fea387ed65df3ef6de22747a1d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c62b6f510784aee7c33dea9c0ed9b41660a7fea387ed65df3ef6de22747a1d1", kill_on_drop: false }`
[INFO] [stdout] 8c62b6f510784aee7c33dea9c0ed9b41660a7fea387ed65df3ef6de22747a1d1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:ac0d0aa6ec8ed129e241004a6179c99fa0d2616f50ba759c5b60bd26d0fafa02" "/opt/rustwide/cargo-home/bin/cargo" "+615edd3ad1cf6871c977dc900317cb6c2070fd6b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 644081c2ad7cc37b4458c8001bdb9a9c2b5f4cfdd912a74cb8fe089b0c9f1c80
[INFO] running `Command { std: "docker" "start" "-a" "644081c2ad7cc37b4458c8001bdb9a9c2b5f4cfdd912a74cb8fe089b0c9f1c80", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.37
[INFO] [stderr]    Compiling rand v0.4.2
[INFO] [stderr]    Compiling chip-8 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]   --> src/main.rs:87:3
[INFO] [stdout]    |
[INFO] [stdout] 86 |         unimplemented!();
[INFO] [stdout]    |         ---------------- any code following this expression is unreachable
[INFO] [stdout] 87 |         return 0;
[INFO] [stdout]    |         ^^^^^^^^^ unreachable statement
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]    --> src/main.rs:379:11
[INFO] [stdout]     |
[INFO] [stdout] 379 |             Shr(x, y) => {
[INFO] [stdout]     |                    ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `val`
[INFO] [stdout]    --> src/main.rs:390:10
[INFO] [stdout]     |
[INFO] [stdout] 390 |                 let (val, overflowing) = (*self.reg(x)).overflowing_sub(*self.reg(y));
[INFO] [stdout]     |                      ^^^ help: if this is intentional, prefix it with an underscore: `_val`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.04s
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "644081c2ad7cc37b4458c8001bdb9a9c2b5f4cfdd912a74cb8fe089b0c9f1c80", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "644081c2ad7cc37b4458c8001bdb9a9c2b5f4cfdd912a74cb8fe089b0c9f1c80", kill_on_drop: false }`
[INFO] [stdout] 644081c2ad7cc37b4458c8001bdb9a9c2b5f4cfdd912a74cb8fe089b0c9f1c80