[INFO] cloning repository https://github.com/ebobby/chip8-vm
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ebobby/chip8-vm" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Febobby%2Fchip8-vm", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Febobby%2Fchip8-vm'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 64905d8daa53a076b18395693038486de5f1907e
[INFO] checking ebobby/chip8-vm against try#8de4b308b608cded0ebccf658a0fc719bce87d4e for pr-89056
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Febobby%2Fchip8-vm" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ebobby/chip8-vm on toolchain 8de4b308b608cded0ebccf658a0fc719bce87d4e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ebobby/chip8-vm
[INFO] finished tweaking git repo https://github.com/ebobby/chip8-vm
[INFO] tweaked toml for git repo https://github.com/ebobby/chip8-vm written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/ebobby/chip8-vm already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c8e050ebec391898c2122af72496a975430a1ba578f8edcc5e9db58c3b6d258a
[INFO] running `Command { std: "docker" "start" "-a" "c8e050ebec391898c2122af72496a975430a1ba578f8edcc5e9db58c3b6d258a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c8e050ebec391898c2122af72496a975430a1ba578f8edcc5e9db58c3b6d258a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c8e050ebec391898c2122af72496a975430a1ba578f8edcc5e9db58c3b6d258a", kill_on_drop: false }`
[INFO] [stdout] c8e050ebec391898c2122af72496a975430a1ba578f8edcc5e9db58c3b6d258a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1ce0346ec28a5eb7da8056a925f0d9144e17b2d91ee70805d40049cb4ceb4760
[INFO] running `Command { std: "docker" "start" "-a" "1ce0346ec28a5eb7da8056a925f0d9144e17b2d91ee70805d40049cb4ceb4760", kill_on_drop: false }`
[INFO] [stderr]     Checking chip8-vm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `dump_mem`
[INFO] [stdout]   --> src/chip8/ram.rs:42:12
[INFO] [stdout]    |
[INFO] [stdout] 42 |     pub fn dump_mem(&self) {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `dump_mem`
[INFO] [stdout]   --> src/chip8/mod.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub fn dump_mem(&self) {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `dump_mem`
[INFO] [stdout]   --> src/chip8/ram.rs:42:12
[INFO] [stdout]    |
[INFO] [stdout] 42 |     pub fn dump_mem(&self) {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `dump_mem`
[INFO] [stdout]   --> src/chip8/mod.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub fn dump_mem(&self) {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.35s
[INFO] running `Command { std: "docker" "inspect" "1ce0346ec28a5eb7da8056a925f0d9144e17b2d91ee70805d40049cb4ceb4760", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ce0346ec28a5eb7da8056a925f0d9144e17b2d91ee70805d40049cb4ceb4760", kill_on_drop: false }`
[INFO] [stdout] 1ce0346ec28a5eb7da8056a925f0d9144e17b2d91ee70805d40049cb4ceb4760