[INFO] cloning repository https://github.com/psimk/chip8
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/psimk/chip8" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpsimk%2Fchip8", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpsimk%2Fchip8'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 26410f072b3c4b19c1d450a8aa7bcafef2e0cb8f
[INFO] checking psimk/chip8 against master#195ad4830e11a544391abe296b146450dea8411b for pr-82781
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpsimk%2Fchip8" "/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/psimk/chip8 on toolchain 195ad4830e11a544391abe296b146450dea8411b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/psimk/chip8
[INFO] finished tweaking git repo https://github.com/psimk/chip8
[INFO] tweaked toml for git repo https://github.com/psimk/chip8 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/psimk/chip8 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "metadata" "--no-deps" "--format-version=1", 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] 460963cc3f7a03019f4745527f48f9f715670ba3e9c5cb5ba957d0b044512a1f
[INFO] running `Command { std: "docker" "start" "-a" "460963cc3f7a03019f4745527f48f9f715670ba3e9c5cb5ba957d0b044512a1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "460963cc3f7a03019f4745527f48f9f715670ba3e9c5cb5ba957d0b044512a1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "460963cc3f7a03019f4745527f48f9f715670ba3e9c5cb5ba957d0b044512a1f", kill_on_drop: false }`
[INFO] [stdout] 460963cc3f7a03019f4745527f48f9f715670ba3e9c5cb5ba957d0b044512a1f
[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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d9035ebf6b6f60d0ebe856bff216a6fb57c0fa8689af7d9defc68f485e5f929c
[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" "d9035ebf6b6f60d0ebe856bff216a6fb57c0fa8689af7d9defc68f485e5f929c", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling libc v0.2.48
[INFO] [stderr]     Checking lazy_static v1.2.0
[INFO] [stderr]     Checking bitflags v1.0.4
[INFO] [stderr]    Compiling sdl2-sys v0.32.5
[INFO] [stderr]     Checking num-integer v0.1.39
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking num-iter v0.1.37
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling rand_pcg v0.1.1
[INFO] [stderr]     Checking rand_os v0.1.2
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]     Checking sdl2 v0.32.1
[INFO] [stderr]     Checking chip8 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `byteorder::ReadBytesExt`
[INFO] [stdout]  --> src/cpu.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use byteorder::ReadBytesExt;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Write`
[INFO] [stdout]  --> src/cpu.rs:6:22
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::io::{Error, Write};
[INFO] [stdout]   |                      ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/cpu.rs:155:1
[INFO] [stdout]     |
[INFO] [stdout] 155 | ;
[INFO] [stdout]     | ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/instruction.rs:65:3
[INFO] [stdout]    |
[INFO] [stdout] 65 |   (encoded & 0x0FFF)
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `byteorder::ReadBytesExt`
[INFO] [stdout]  --> src/cpu.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use byteorder::ReadBytesExt;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Write`
[INFO] [stdout]  --> src/cpu.rs:6:22
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::io::{Error, Write};
[INFO] [stdout]   |                      ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/cpu.rs:155:1
[INFO] [stdout]     |
[INFO] [stdout] 155 | ;
[INFO] [stdout]     | ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/instruction.rs:65:3
[INFO] [stdout]    |
[INFO] [stdout] 65 |   (encoded & 0x0FFF)
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.85s
[INFO] running `Command { std: "docker" "inspect" "d9035ebf6b6f60d0ebe856bff216a6fb57c0fa8689af7d9defc68f485e5f929c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d9035ebf6b6f60d0ebe856bff216a6fb57c0fa8689af7d9defc68f485e5f929c", kill_on_drop: false }`
[INFO] [stdout] d9035ebf6b6f60d0ebe856bff216a6fb57c0fa8689af7d9defc68f485e5f929c