[INFO] updating cached repository https://github.com/babydragon/iot_center
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/mnt/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 76662bbf4ba10275bc3cfbdba4cce9a8141303e2
[INFO] checking babydragon/iot_center against master#c9edc02e8320a9e5799d185910ece7d491f524e6 for pr-64398
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbabydragon%2Fiot_center" "work/builds/worker-6/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/babydragon/iot_center on toolchain c9edc02e8320a9e5799d185910ece7d491f524e6-alt
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+c9edc02e8320a9e5799d185910ece7d491f524e6-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/babydragon/iot_center
[INFO] finished tweaking git repo https://github.com/babydragon/iot_center
[INFO] tweaked toml for git repo https://github.com/babydragon/iot_center written to work/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/babydragon/iot_center already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+c9edc02e8320a9e5799d185910ece7d491f524e6-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/mnt/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+c9edc02e8320a9e5799d185910ece7d491f524e6-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 0e89a9948cdcfc2a2ad9a21b2e9f29025c4e700fe95bfe789f3979648bd53bc5
[INFO] running `"docker" "start" "-a" "0e89a9948cdcfc2a2ad9a21b2e9f29025c4e700fe95bfe789f3979648bd53bc5"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling openssl-sys v0.9.32
[INFO] [stderr]     Checking log v0.4.1
[INFO] [stderr]     Checking chrono v0.4.3
[INFO] [stderr]     Checking serde-value v0.5.2
[INFO] [stderr]     Checking rusqlite v0.14.0
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]    Compiling openssl v0.9.24
[INFO] [stderr]     Checking mqtt-protocol v0.3.1
[INFO] [stderr]     Checking log4rs v0.8.0
[INFO] [stderr]     Checking rumqtt v0.10.1
[INFO] [stderr]     Checking iot_center v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: field is never used: `client`
[INFO] [stderr]  --> src/mqtt/mod.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     client: MqttClient
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `client`
[INFO] [stderr]  --> src/mqtt/mod.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     client: MqttClient
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 31.11s
[INFO] running `"docker" "inspect" "0e89a9948cdcfc2a2ad9a21b2e9f29025c4e700fe95bfe789f3979648bd53bc5"`
[INFO] running `"docker" "rm" "-f" "0e89a9948cdcfc2a2ad9a21b2e9f29025c4e700fe95bfe789f3979648bd53bc5"`
[INFO] [stdout] 0e89a9948cdcfc2a2ad9a21b2e9f29025c4e700fe95bfe789f3979648bd53bc5