[INFO] cloning repository https://github.com/mustacean/learning_kafka
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mustacean/learning_kafka" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmustacean%2Flearning_kafka", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmustacean%2Flearning_kafka'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 112011f2010bc437fed1f20dd22ee8cc428f6801
[INFO] checking mustacean/learning_kafka against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmustacean%2Flearning_kafka" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mustacean/learning_kafka on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mustacean/learning_kafka
[INFO] finished tweaking git repo https://github.com/mustacean/learning_kafka
[INFO] tweaked toml for git repo https://github.com/mustacean/learning_kafka written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/mustacean/learning_kafka already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ref_slice v1.2.0
[INFO] [stderr]   Downloaded kafka v0.8.0
[INFO] [stderr]   Downloaded snap v0.2.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b0976a85e96582d505bf51f841c32f92e8263d72cddc5f46a6ede3ddc3b661c6
[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" "b0976a85e96582d505bf51f841c32f92e8263d72cddc5f46a6ede3ddc3b661c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b0976a85e96582d505bf51f841c32f92e8263d72cddc5f46a6ede3ddc3b661c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0976a85e96582d505bf51f841c32f92e8263d72cddc5f46a6ede3ddc3b661c6", kill_on_drop: false }`
[INFO] [stdout] b0976a85e96582d505bf51f841c32f92e8263d72cddc5f46a6ede3ddc3b661c6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c7d72c0f5872d8832345a0edd04b7394d6658e395ea6c2a87da6201bee22b9c2
[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" "c7d72c0f5872d8832345a0edd04b7394d6658e395ea6c2a87da6201bee22b9c2", kill_on_drop: false }`
[INFO] [stderr]     Checking ref_slice v1.2.0
[INFO] [stderr]    Compiling miniz-sys v0.1.12
[INFO] [stderr]     Checking snap v0.2.5
[INFO] [stderr]     Checking backtrace v0.3.49
[INFO] [stderr]    Compiling openssl v0.10.29
[INFO] [stderr]     Checking twox-hash v1.5.0
[INFO] [stderr]     Checking error-chain v0.10.0
[INFO] [stderr]     Checking flate2 v0.2.20
[INFO] [stderr]     Checking kafka v0.8.0
[INFO] [stderr]     Checking kafkast v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `conf`
[INFO] [stdout]   --> src/service.rs:48:5
[INFO] [stdout]    |
[INFO] [stdout] 48 |     conf: KafkaConfig,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `producer`
[INFO] [stdout]   --> src/service.rs:49:5
[INFO] [stdout]    |
[INFO] [stdout] 49 |     producer: kafka::producer::Producer,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `conf`
[INFO] [stdout]   --> src/service.rs:48:5
[INFO] [stdout]    |
[INFO] [stdout] 48 |     conf: KafkaConfig,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `producer`
[INFO] [stdout]   --> src/service.rs:49:5
[INFO] [stdout]    |
[INFO] [stdout] 49 |     producer: kafka::producer::Producer,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.39s
[INFO] running `Command { std: "docker" "inspect" "c7d72c0f5872d8832345a0edd04b7394d6658e395ea6c2a87da6201bee22b9c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c7d72c0f5872d8832345a0edd04b7394d6658e395ea6c2a87da6201bee22b9c2", kill_on_drop: false }`
[INFO] [stdout] c7d72c0f5872d8832345a0edd04b7394d6658e395ea6c2a87da6201bee22b9c2