Dec 12 12:47:17.652 INFO checking iot_center-0.0.1 against try#aa9aa79c3c583aab59ac9134542d60a780c35e2e for pr-56677
Dec 12 12:47:17.652 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-4/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56677/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +aa9aa79c3c583aab59ac9134542d60a780c35e2e-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 12 12:47:18.044 INFO [stdout] f0fb421acf9eb9dbd671a13c790a86d961a633209e2457d4163f07cd1619c4fc
Dec 12 12:47:18.048 INFO running `"docker" "start" "-a" "f0fb421acf9eb9dbd671a13c790a86d961a633209e2457d4163f07cd1619c4fc"`
Dec 12 12:47:19.312 INFO [stderr] usermod: no changes
Dec 12 12:47:19.566 INFO [stderr]     Checking mqtt-protocol v0.3.1
Dec 12 12:47:22.388 INFO [stderr]     Checking rumqtt v0.10.1
Dec 12 12:47:25.180 INFO [stderr]     Checking iot_center v0.0.1 (/source)
Dec 12 12:47:31.423 INFO [stderr] warning: field is never used: `client`
Dec 12 12:47:31.423 INFO [stderr]  --> src/mqtt/mod.rs:9:5
Dec 12 12:47:31.423 INFO [stderr]   |
Dec 12 12:47:31.423 INFO [stderr] 9 |     client: MqttClient
Dec 12 12:47:31.423 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^
Dec 12 12:47:31.423 INFO [stderr]   |
Dec 12 12:47:31.423 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 12 12:47:31.424 INFO [stderr] 
Dec 12 12:47:31.431 INFO [stderr] warning: field is never used: `client`
Dec 12 12:47:31.431 INFO [stderr]  --> src/mqtt/mod.rs:9:5
Dec 12 12:47:31.431 INFO [stderr]   |
Dec 12 12:47:31.431 INFO [stderr] 9 |     client: MqttClient
Dec 12 12:47:31.431 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^
Dec 12 12:47:31.431 INFO [stderr]   |
Dec 12 12:47:31.431 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 12 12:47:31.431 INFO [stderr] 
Dec 12 12:47:31.466 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.15s
Dec 12 12:47:31.482 INFO [stderr] su: No module specific data is present
Dec 12 12:47:32.000 INFO running `"docker" "inspect" "f0fb421acf9eb9dbd671a13c790a86d961a633209e2457d4163f07cd1619c4fc"`
Dec 12 12:47:32.152 INFO running `"docker" "rm" "-f" "f0fb421acf9eb9dbd671a13c790a86d961a633209e2457d4163f07cd1619c4fc"`
Dec 12 12:47:32.302 INFO [stdout] f0fb421acf9eb9dbd671a13c790a86d961a633209e2457d4163f07cd1619c4fc