[INFO] cloning repository https://github.com/mboros1/rust-iot-thermostat-central
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mboros1/rust-iot-thermostat-central" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmboros1%2Frust-iot-thermostat-central", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmboros1%2Frust-iot-thermostat-central'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 33a0cf1c323410fdb740f58b7a7da127d5ac9595
[INFO] checking mboros1/rust-iot-thermostat-central against master#cfe9ffcd7c2d63fd3e0fc33a8d23ac4f0d50efe9 for pr-136968
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmboros1%2Frust-iot-thermostat-central" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mboros1/rust-iot-thermostat-central on toolchain cfe9ffcd7c2d63fd3e0fc33a8d23ac4f0d50efe9
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cfe9ffcd7c2d63fd3e0fc33a8d23ac4f0d50efe9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mboros1/rust-iot-thermostat-central
[INFO] finished tweaking git repo https://github.com/mboros1/rust-iot-thermostat-central
[INFO] tweaked toml for git repo https://github.com/mboros1/rust-iot-thermostat-central written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/mboros1/rust-iot-thermostat-central 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" "+cfe9ffcd7c2d63fd3e0fc33a8d23ac4f0d50efe9" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bluez-generated v0.4.0
[INFO] [stderr]   Downloaded bluez-async v0.8.0
[INFO] [stderr]   Downloaded btleplug v0.11.7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+cfe9ffcd7c2d63fd3e0fc33a8d23ac4f0d50efe9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a0063f27960c23c4b94e47ffae1647a16b88efd1e032cf09594a05974a5873e4
[INFO] running `Command { std: "docker" "start" "-a" "a0063f27960c23c4b94e47ffae1647a16b88efd1e032cf09594a05974a5873e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a0063f27960c23c4b94e47ffae1647a16b88efd1e032cf09594a05974a5873e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a0063f27960c23c4b94e47ffae1647a16b88efd1e032cf09594a05974a5873e4", kill_on_drop: false }`
[INFO] [stdout] a0063f27960c23c4b94e47ffae1647a16b88efd1e032cf09594a05974a5873e4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+cfe9ffcd7c2d63fd3e0fc33a8d23ac4f0d50efe9" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 832996bd01931a5e6ea81bcb1476439fad9a6c10520bcdd0e435cc97eb3ced27
[INFO] running `Command { std: "docker" "start" "-a" "832996bd01931a5e6ea81bcb1476439fad9a6c10520bcdd0e435cc97eb3ced27", kill_on_drop: false }`
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[INFO] [stderr]     Checking rust-iot-thermostat-central v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `device`
[INFO] [stdout]    --> src/main.rs:158:17
[INFO] [stdout]     |
[INFO] [stdout] 158 |     if let Some(device) = devices.iter().find(|d| d.address == address) {
[INFO] [stdout]     |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_device`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `device`
[INFO] [stdout]    --> src/main.rs:158:17
[INFO] [stdout]     |
[INFO] [stdout] 158 |     if let Some(device) = devices.iter().find(|d| d.address == address) {
[INFO] [stdout]     |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_device`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 33.98s
[INFO] running `Command { std: "docker" "inspect" "832996bd01931a5e6ea81bcb1476439fad9a6c10520bcdd0e435cc97eb3ced27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "832996bd01931a5e6ea81bcb1476439fad9a6c10520bcdd0e435cc97eb3ced27", kill_on_drop: false }`
[INFO] [stdout] 832996bd01931a5e6ea81bcb1476439fad9a6c10520bcdd0e435cc97eb3ced27