[INFO] cloning repository https://github.com/michaelsergio/chip8-disassembler
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/michaelsergio/chip8-disassembler" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmichaelsergio%2Fchip8-disassembler", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmichaelsergio%2Fchip8-disassembler'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5d5cd1ea2378cd8f0a67ce4ada81d8fff1600b0e
[INFO] checking michaelsergio/chip8-disassembler against master#39b841dfe36f90a7cd111e7f0c55f32594f6e578 for pr-77035
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmichaelsergio%2Fchip8-disassembler" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/michaelsergio/chip8-disassembler on toolchain 39b841dfe36f90a7cd111e7f0c55f32594f6e578
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/michaelsergio/chip8-disassembler
[INFO] finished tweaking git repo https://github.com/michaelsergio/chip8-disassembler
[INFO] tweaked toml for git repo https://github.com/michaelsergio/chip8-disassembler written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/michaelsergio/chip8-disassembler already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 101a85178a0a2935f1f5512272b68532269ab271ecac7a40817db8d096fd93cf
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "101a85178a0a2935f1f5512272b68532269ab271ecac7a40817db8d096fd93cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "101a85178a0a2935f1f5512272b68532269ab271ecac7a40817db8d096fd93cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "101a85178a0a2935f1f5512272b68532269ab271ecac7a40817db8d096fd93cf", kill_on_drop: false }`
[INFO] [stdout] 101a85178a0a2935f1f5512272b68532269ab271ecac7a40817db8d096fd93cf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ed5326858f260fa9354508e5374ae84cddd21836d4a49c7bc4179438afe69813
[INFO] running `Command { std: "docker" "start" "-a" "ed5326858f260fa9354508e5374ae84cddd21836d4a49c7bc4179438afe69813", kill_on_drop: false }`
[INFO] [stderr]     Checking chip8-disassemble v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `decode_op`
[INFO] [stdout]    --> src/main.rs:143:4
[INFO] [stdout]     |
[INFO] [stdout] 143 | fn decode_op(opcode: u8) -> &'static str {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `decode_op`
[INFO] [stdout]    --> src/main.rs:143:4
[INFO] [stdout]     |
[INFO] [stdout] 143 | fn decode_op(opcode: u8) -> &'static str {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.38s
[INFO] running `Command { std: "docker" "inspect" "ed5326858f260fa9354508e5374ae84cddd21836d4a49c7bc4179438afe69813", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed5326858f260fa9354508e5374ae84cddd21836d4a49c7bc4179438afe69813", kill_on_drop: false }`
[INFO] [stdout] ed5326858f260fa9354508e5374ae84cddd21836d4a49c7bc4179438afe69813