Dec 18 03:33:25.144 INFO checking babydragon/iot_center against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 03:33:25.144 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-1/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/babydragon/iot_center:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 03:33:25.585 INFO [stdout] 857f204318018d8052b09b5b5e0d1fe7b761e7f2ce680924b4f18ecff026e3e2
Dec 18 03:33:25.587 INFO running `"docker" "start" "-a" "857f204318018d8052b09b5b5e0d1fe7b761e7f2ce680924b4f18ecff026e3e2"`
Dec 18 03:33:27.373 INFO [stderr]     Checking lazy_static v1.0.1
Dec 18 03:33:27.395 INFO [stderr]     Checking num_cpus v1.8.0
Dec 18 03:33:27.400 INFO [stderr]    Compiling openssl-sys v0.9.32
Dec 18 03:33:27.402 INFO [stderr]    Compiling proc-macro2 v0.4.6
Dec 18 03:33:27.462 INFO [stderr]     Checking log v0.4.1
Dec 18 03:33:27.463 INFO [stderr]     Checking chan v0.1.21
Dec 18 03:33:27.465 INFO [stderr]     Checking chrono v0.4.3
Dec 18 03:33:27.467 INFO [stderr]     Checking rusqlite v0.14.0
Dec 18 03:33:28.432 INFO [stderr]     Checking serde-value v0.5.2
Dec 18 03:33:28.444 INFO [stderr]     Checking threadpool v1.7.1
Dec 18 03:33:31.392 INFO [stderr]     Checking log v0.3.9
Dec 18 03:33:31.464 INFO [stderr]     Checking chan-signal v0.3.1
Dec 18 03:33:33.328 INFO [stderr]     Checking mqtt-protocol v0.3.1
Dec 18 03:33:33.770 INFO [stderr]    Compiling quote v0.6.3
Dec 18 03:33:34.339 INFO [stderr]    Compiling openssl v0.9.24
Dec 18 03:33:35.060 INFO [stderr]    Compiling syn v0.14.2
Dec 18 03:33:40.027 INFO [stderr]     Checking rumqtt v0.10.1
Dec 18 03:33:45.127 INFO [stderr]    Compiling serde_derive v1.0.66
Dec 18 03:33:56.872 INFO [stderr]     Checking log4rs v0.8.0
Dec 18 03:33:59.400 INFO [stderr]     Checking iot_center v0.0.1 (/opt/crater/workdir)
Dec 18 03:34:00.644 INFO [stderr] warning: field is never used: `client`
Dec 18 03:34:00.644 INFO [stderr]  --> src/mqtt/mod.rs:9:5
Dec 18 03:34:00.644 INFO [stderr]   |
Dec 18 03:34:00.644 INFO [stderr] 9 |     client: MqttClient
Dec 18 03:34:00.644 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^
Dec 18 03:34:00.644 INFO [stderr]   |
Dec 18 03:34:00.644 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 18 03:34:00.644 INFO [stderr] 
Dec 18 03:34:00.672 INFO [stderr] warning: field is never used: `client`
Dec 18 03:34:00.672 INFO [stderr]  --> src/mqtt/mod.rs:9:5
Dec 18 03:34:00.672 INFO [stderr]   |
Dec 18 03:34:00.672 INFO [stderr] 9 |     client: MqttClient
Dec 18 03:34:00.672 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^
Dec 18 03:34:00.672 INFO [stderr]   |
Dec 18 03:34:00.672 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 18 03:34:00.672 INFO [stderr] 
Dec 18 03:34:00.726 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 33.62s
Dec 18 03:34:01.472 INFO running `"docker" "inspect" "857f204318018d8052b09b5b5e0d1fe7b761e7f2ce680924b4f18ecff026e3e2"`
Dec 18 03:34:01.788 INFO running `"docker" "rm" "-f" "857f204318018d8052b09b5b5e0d1fe7b761e7f2ce680924b4f18ecff026e3e2"`
Dec 18 03:34:02.028 INFO [stdout] 857f204318018d8052b09b5b5e0d1fe7b761e7f2ce680924b4f18ecff026e3e2