[INFO] cloning repository https://github.com/RahulVivekNair/chip8-emulator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/RahulVivekNair/chip8-emulator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRahulVivekNair%2Fchip8-emulator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRahulVivekNair%2Fchip8-emulator'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6db7d82d36ce4754baf7e8320c3d8750e9945d2a
[INFO] checking RahulVivekNair/chip8-emulator against master#bca37a20bd376ce3fd138e7cdee7fe704e0f8814 for pr-139493-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRahulVivekNair%2Fchip8-emulator" "/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/RahulVivekNair/chip8-emulator
[INFO] finished tweaking git repo https://github.com/RahulVivekNair/chip8-emulator
[INFO] tweaked toml for git repo https://github.com/RahulVivekNair/chip8-emulator written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/RahulVivekNair/chip8-emulator 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/RahulVivekNair/chip8-emulator 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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded libc v0.2.139
[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] 8894f03d34259c8b140c9269384cb52504021f73799d947c26561f8627765dab
[INFO] running `Command { std: "docker" "start" "-a" "8894f03d34259c8b140c9269384cb52504021f73799d947c26561f8627765dab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8894f03d34259c8b140c9269384cb52504021f73799d947c26561f8627765dab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8894f03d34259c8b140c9269384cb52504021f73799d947c26561f8627765dab", kill_on_drop: false }`
[INFO] [stdout] 8894f03d34259c8b140c9269384cb52504021f73799d947c26561f8627765dab
[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] 16e5c2cc6f0f5517d6ff2b18bacdcca7ac6804d92dc170d6e169b83dbfb0e8d8
[INFO] running `Command { std: "docker" "start" "-a" "16e5c2cc6f0f5517d6ff2b18bacdcca7ac6804d92dc170d6e169b83dbfb0e8d8", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]     Checking fastrand v1.8.0
[INFO] [stderr]     Checking sdl2-sys v0.35.2
[INFO] [stderr]     Checking sdl2 v0.35.2
[INFO] [stderr]     Checking chip8-emulator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |     let mut texture = texture_creator
[INFO] [stdout]    |         ----^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `texture`
[INFO] [stdout]   --> src/main.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |     let mut texture = texture_creator
[INFO] [stdout]    |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_texture`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |     let mut texture = texture_creator
[INFO] [stdout]    |         ----^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `texture`
[INFO] [stdout]   --> src/main.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |     let mut texture = texture_creator
[INFO] [stdout]    |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_texture`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.96s
[INFO] running `Command { std: "docker" "inspect" "16e5c2cc6f0f5517d6ff2b18bacdcca7ac6804d92dc170d6e169b83dbfb0e8d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "16e5c2cc6f0f5517d6ff2b18bacdcca7ac6804d92dc170d6e169b83dbfb0e8d8", kill_on_drop: false }`
[INFO] [stdout] 16e5c2cc6f0f5517d6ff2b18bacdcca7ac6804d92dc170d6e169b83dbfb0e8d8