[INFO] cloning repository https://github.com/Hpmason/bluetooth-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Hpmason/bluetooth-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHpmason%2Fbluetooth-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHpmason%2Fbluetooth-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a31b746e972c5df2dd85332001bbef180e912ec6
[INFO] testing Hpmason/bluetooth-rs against try#a7ce54db9b096bd1098d07c645b489195a667c9f for pr-137940
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHpmason%2Fbluetooth-rs" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Hpmason/bluetooth-rs on toolchain a7ce54db9b096bd1098d07c645b489195a667c9f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a7ce54db9b096bd1098d07c645b489195a667c9f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Hpmason/bluetooth-rs
[INFO] finished tweaking git repo https://github.com/Hpmason/bluetooth-rs
[INFO] tweaked toml for git repo https://github.com/Hpmason/bluetooth-rs written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/Hpmason/bluetooth-rs 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" "+a7ce54db9b096bd1098d07c645b489195a667c9f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded windows-result v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+a7ce54db9b096bd1098d07c645b489195a667c9f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 98662bfa68aee8f1ec48caa93cfab09c5f8285450fb4f5c17443d5ab263ab468
[INFO] running `Command { std: "docker" "start" "-a" "98662bfa68aee8f1ec48caa93cfab09c5f8285450fb4f5c17443d5ab263ab468", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "98662bfa68aee8f1ec48caa93cfab09c5f8285450fb4f5c17443d5ab263ab468", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "98662bfa68aee8f1ec48caa93cfab09c5f8285450fb4f5c17443d5ab263ab468", kill_on_drop: false }`
[INFO] [stdout] 98662bfa68aee8f1ec48caa93cfab09c5f8285450fb4f5c17443d5ab263ab468
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+a7ce54db9b096bd1098d07c645b489195a667c9f" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] da7a52c9618b37e091582cada50383939dd82820533d07208620c03a0f246bba
[INFO] running `Command { std: "docker" "start" "-a" "da7a52c9618b37e091582cada50383939dd82820533d07208620c03a0f246bba", kill_on_drop: false }`
[INFO] [stderr]    Compiling bluetooth-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `BluetoothDevice` is never constructed
[INFO] [stdout]  --> src/arch/mod.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct BluetoothDevice {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.16s
[INFO] running `Command { std: "docker" "inspect" "da7a52c9618b37e091582cada50383939dd82820533d07208620c03a0f246bba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da7a52c9618b37e091582cada50383939dd82820533d07208620c03a0f246bba", kill_on_drop: false }`
[INFO] [stdout] da7a52c9618b37e091582cada50383939dd82820533d07208620c03a0f246bba
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+a7ce54db9b096bd1098d07c645b489195a667c9f" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 977f0090ee984f059862eae336f3f3252563a22a6634c9271b3a1ee79dbe236d
[INFO] running `Command { std: "docker" "start" "-a" "977f0090ee984f059862eae336f3f3252563a22a6634c9271b3a1ee79dbe236d", kill_on_drop: false }`
[INFO] [stderr]    Compiling bluetooth-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `BluetoothDevice` is never constructed
[INFO] [stdout]  --> src/arch/mod.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct BluetoothDevice {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0601]: `main` function not found in crate `ex`
[INFO] [stdout]   --> examples/ex.rs:92:2
[INFO] [stdout]    |
[INFO] [stdout] 92 | }
[INFO] [stdout]    |  ^ consider adding a `main` function to `examples/ex.rs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0601`.
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BluetoothDevice` is never constructed
[INFO] [stdout]  --> src/arch/mod.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct BluetoothDevice {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `bluetooth-rs` (example "ex") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "977f0090ee984f059862eae336f3f3252563a22a6634c9271b3a1ee79dbe236d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "977f0090ee984f059862eae336f3f3252563a22a6634c9271b3a1ee79dbe236d", kill_on_drop: false }`
[INFO] [stdout] 977f0090ee984f059862eae336f3f3252563a22a6634c9271b3a1ee79dbe236d