[INFO] cloning repository https://github.com/kmanju8/CHIP8-emu
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kmanju8/CHIP8-emu" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkmanju8%2FCHIP8-emu", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkmanju8%2FCHIP8-emu'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 240200acb457e7e4031976eac75a9a6f5837d255
[INFO] checking kmanju8/CHIP8-emu against master#bca37a20bd376ce3fd138e7cdee7fe704e0f8814 for pr-139493-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkmanju8%2FCHIP8-emu" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/kmanju8/CHIP8-emu
[INFO] finished tweaking git repo https://github.com/kmanju8/CHIP8-emu
[INFO] tweaked toml for git repo https://github.com/kmanju8/CHIP8-emu written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/kmanju8/CHIP8-emu on toolchain bca37a20bd376ce3fd138e7cdee7fe704e0f8814
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/kmanju8/CHIP8-emu already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dcb48b1e52b5528d3495d91af2747894c657793b92ea5e1f0d0d7348e3357bcf
[INFO] running `Command { std: "docker" "start" "-a" "dcb48b1e52b5528d3495d91af2747894c657793b92ea5e1f0d0d7348e3357bcf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dcb48b1e52b5528d3495d91af2747894c657793b92ea5e1f0d0d7348e3357bcf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dcb48b1e52b5528d3495d91af2747894c657793b92ea5e1f0d0d7348e3357bcf", kill_on_drop: false }`
[INFO] [stdout] dcb48b1e52b5528d3495d91af2747894c657793b92ea5e1f0d0d7348e3357bcf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "RUSTDOCFLAGS=--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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8efa6fb0ad2aaec21a71ea6808f7c321a8bb969b9f56d9f9486d231726aad67e
[INFO] running `Command { std: "docker" "start" "-a" "8efa6fb0ad2aaec21a71ea6808f7c321a8bb969b9f56d9f9486d231726aad67e", kill_on_drop: false }`
[INFO] [stderr]    Compiling radium v0.7.0
[INFO] [stderr]     Checking tap v1.0.1
[INFO] [stderr]    Compiling sdl2 v0.35.2
[INFO] [stderr]     Checking funty v2.0.0
[INFO] [stderr]    Compiling sdl2-sys v0.35.2
[INFO] [stderr]     Checking wyz v0.5.1
[INFO] [stderr]     Checking bitvec v1.0.1
[INFO] [stderr]     Checking chip8 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `sp` is never read
[INFO] [stdout]  --> src/chip/cpu.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct CPU {
[INFO] [stdout]   |            --- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 9 |     sp: u8,      // the stack pointer
[INFO] [stdout]   |     ^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `sp` is never read
[INFO] [stdout]  --> src/chip/cpu.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct CPU {
[INFO] [stdout]   |            --- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 9 |     sp: u8,      // the stack pointer
[INFO] [stdout]   |     ^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.73s
[INFO] running `Command { std: "docker" "inspect" "8efa6fb0ad2aaec21a71ea6808f7c321a8bb969b9f56d9f9486d231726aad67e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8efa6fb0ad2aaec21a71ea6808f7c321a8bb969b9f56d9f9486d231726aad67e", kill_on_drop: false }`
[INFO] [stdout] 8efa6fb0ad2aaec21a71ea6808f7c321a8bb969b9f56d9f9486d231726aad67e