[INFO] cloning repository https://github.com/nnonchev/chip-8-emulator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nnonchev/chip-8-emulator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnnonchev%2Fchip-8-emulator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnnonchev%2Fchip-8-emulator'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] aa785ec0c407d15b6196ea87c5d7bac2473b6af6
[INFO] checking nnonchev/chip-8-emulator against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnnonchev%2Fchip-8-emulator" "/workspace/builds/worker-15/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-15/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nnonchev/chip-8-emulator on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/nnonchev/chip-8-emulator
[INFO] finished tweaking git repo https://github.com/nnonchev/chip-8-emulator
[INFO] tweaked toml for git repo https://github.com/nnonchev/chip-8-emulator written to /workspace/builds/worker-15/source/Cargo.toml
[INFO] crate git repo https://github.com/nnonchev/chip-8-emulator already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a2645b5da93eb51a44182fbe207c65e744b80b77f2a880b20f755737f2b278b2
[INFO] running `Command { std: "docker" "start" "-a" "a2645b5da93eb51a44182fbe207c65e744b80b77f2a880b20f755737f2b278b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a2645b5da93eb51a44182fbe207c65e744b80b77f2a880b20f755737f2b278b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a2645b5da93eb51a44182fbe207c65e744b80b77f2a880b20f755737f2b278b2", kill_on_drop: false }`
[INFO] [stdout] a2645b5da93eb51a44182fbe207c65e744b80b77f2a880b20f755737f2b278b2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 05ab49d6d63bc1de2a72158a8f2832214e6f18785a5ffa558b021f62b3255aa6
[INFO] running `Command { std: "docker" "start" "-a" "05ab49d6d63bc1de2a72158a8f2832214e6f18785a5ffa558b021f62b3255aa6", kill_on_drop: false }`
[INFO] [stderr]     Checking chip_8 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0425]: cannot find value `addr` in this scope
[INFO] [stdout]   --> src/main.rs:73:13
[INFO] [stdout]    |
[INFO] [stdout] 73 |             addr += (op3 as u16) << 0x04;
[INFO] [stdout]    |             ^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `addr` in this scope
[INFO] [stdout]   --> src/main.rs:73:13
[INFO] [stdout]    |
[INFO] [stdout] 73 |             addr += (op3 as u16) << 0x04;
[INFO] [stdout]    |             ^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `op3` in this scope
[INFO] [stdout]   --> src/main.rs:73:22
[INFO] [stdout]    |
[INFO] [stdout] 73 |             addr += (op3 as u16) << 0x04;
[INFO] [stdout]    |                      ^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `addr` in this scope
[INFO] [stdout]   --> src/main.rs:74:13
[INFO] [stdout]    |
[INFO] [stdout] 74 |             addr += op4 as u16;
[INFO] [stdout]    |             ^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `op4` in this scope
[INFO] [stdout]   --> src/main.rs:74:21
[INFO] [stdout]    |
[INFO] [stdout] 74 |             addr += op4 as u16;
[INFO] [stdout]    |                     ^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `op4` in this scope
[INFO] [stdout]   --> src/main.rs:81:87
[INFO] [stdout]    |
[INFO] [stdout] 81 |             println!("op1: {:0x}, op2: {:0x}, op3: {:0x}, op4: {:0x}", op1, op2, op3, op4);
[INFO] [stdout]    |                                                                                       ^^^ help: a local variable with a similar name exists: `op1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `op3` in this scope
[INFO] [stdout]   --> src/main.rs:73:22
[INFO] [stdout]    |
[INFO] [stdout] 73 |             addr += (op3 as u16) << 0x04;
[INFO] [stdout]    |                      ^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `addr` in this scope
[INFO] [stdout]   --> src/main.rs:74:13
[INFO] [stdout]    |
[INFO] [stdout] 74 |             addr += op4 as u16;
[INFO] [stdout]    |             ^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `op4` in this scope
[INFO] [stdout]   --> src/main.rs:74:21
[INFO] [stdout]    |
[INFO] [stdout] 74 |             addr += op4 as u16;
[INFO] [stdout]    |                     ^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `op4` in this scope
[INFO] [stdout]   --> src/main.rs:81:87
[INFO] [stdout]    |
[INFO] [stdout] 81 |             println!("op1: {:0x}, op2: {:0x}, op3: {:0x}, op4: {:0x}", op1, op2, op3, op4);
[INFO] [stdout]    |                                                                                       ^^^ help: a local variable with a similar name exists: `op1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `chip_8`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "05ab49d6d63bc1de2a72158a8f2832214e6f18785a5ffa558b021f62b3255aa6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "05ab49d6d63bc1de2a72158a8f2832214e6f18785a5ffa558b021f62b3255aa6", kill_on_drop: false }`
[INFO] [stdout] 05ab49d6d63bc1de2a72158a8f2832214e6f18785a5ffa558b021f62b3255aa6