[INFO] updating cached repository https://github.com/winfield/CHIP-9
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 40973c8d32281ee31d01237820bcc4fc745a296f
[INFO] checking winfield/CHIP-9 against master#4fb54ed484e2239a3e9eff3be17df00d2a162be3 for pr-73345
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwinfield%2FCHIP-9" "/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/winfield/CHIP-9 on toolchain 4fb54ed484e2239a3e9eff3be17df00d2a162be3
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fb54ed484e2239a3e9eff3be17df00d2a162be3" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/winfield/CHIP-9
[INFO] finished tweaking git repo https://github.com/winfield/CHIP-9
[INFO] tweaked toml for git repo https://github.com/winfield/CHIP-9 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/winfield/CHIP-9 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fb54ed484e2239a3e9eff3be17df00d2a162be3" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:6c9ffe128752d56c8d75334ed354142a5229917ed99767f56566dd8e857ad726" "/opt/rustwide/cargo-home/bin/cargo" "+4fb54ed484e2239a3e9eff3be17df00d2a162be3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 220c783f69cd576c275c5bec2a6f591fae12ae2b377dc794652758cf8e0d7b01
[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" "220c783f69cd576c275c5bec2a6f591fae12ae2b377dc794652758cf8e0d7b01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "220c783f69cd576c275c5bec2a6f591fae12ae2b377dc794652758cf8e0d7b01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "220c783f69cd576c275c5bec2a6f591fae12ae2b377dc794652758cf8e0d7b01", kill_on_drop: false }`
[INFO] [stdout] 220c783f69cd576c275c5bec2a6f591fae12ae2b377dc794652758cf8e0d7b01
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:6c9ffe128752d56c8d75334ed354142a5229917ed99767f56566dd8e857ad726" "/opt/rustwide/cargo-home/bin/cargo" "+4fb54ed484e2239a3e9eff3be17df00d2a162be3" "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] a07efeb60a83c88797415fbfc2e3d1d53c4ccf44445d4ad6f536b959ab3b2023
[INFO] running `Command { std: "docker" "start" "-a" "a07efeb60a83c88797415fbfc2e3d1d53c4ccf44445d4ad6f536b959ab3b2023", kill_on_drop: false }`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Checking chip-9 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `super::Cpu`
[INFO] [stdout]    --> src/cpu.rs:146:9
[INFO] [stdout]     |
[INFO] [stdout] 146 |     use super::Cpu;
[INFO] [stdout]     |         ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Cpu`
[INFO] [stdout]  --> src/cpu.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Cpu {
[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: `new`
[INFO] [stdout]   --> src/cpu.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 19 |     fn new() -> Cpu {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `current_opcode`
[INFO] [stdout]   --> src/cpu.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 31 |     fn current_opcode(&mut self) -> u16 {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `process_opcode`
[INFO] [stdout]   --> src/cpu.rs:38:8
[INFO] [stdout]    |
[INFO] [stdout] 38 |     fn process_opcode(&mut self) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Cpu`
[INFO] [stdout]  --> src/cpu.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Cpu {
[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: `new`
[INFO] [stdout]   --> src/cpu.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 19 |     fn new() -> Cpu {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `current_opcode`
[INFO] [stdout]   --> src/cpu.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 31 |     fn current_opcode(&mut self) -> u16 {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `process_opcode`
[INFO] [stdout]   --> src/cpu.rs:38:8
[INFO] [stdout]    |
[INFO] [stdout] 38 |     fn process_opcode(&mut self) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.55s
[INFO] running `Command { std: "docker" "inspect" "a07efeb60a83c88797415fbfc2e3d1d53c4ccf44445d4ad6f536b959ab3b2023", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a07efeb60a83c88797415fbfc2e3d1d53c4ccf44445d4ad6f536b959ab3b2023", kill_on_drop: false }`
[INFO] [stdout] a07efeb60a83c88797415fbfc2e3d1d53c4ccf44445d4ad6f536b959ab3b2023