[INFO] fetching crate rust_gpiozero 0.2.1...
[INFO] checking rust_gpiozero-0.2.1 against try#3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f for pr-87248
[INFO] extracting crate rust_gpiozero 0.2.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate rust_gpiozero 0.2.1 on toolchain 3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rust_gpiozero 0.2.1
[INFO] finished tweaking crates.io crate rust_gpiozero 0.2.1
[INFO] tweaked toml for crates.io crate rust_gpiozero 0.2.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate rust_gpiozero 0.2.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded libc v0.2.94
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 76176d282705627ad479fb648a2f2881af1ea1d32723218174682e685d0be217
[INFO] running `Command { std: "docker" "start" "-a" "76176d282705627ad479fb648a2f2881af1ea1d32723218174682e685d0be217", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "76176d282705627ad479fb648a2f2881af1ea1d32723218174682e685d0be217", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76176d282705627ad479fb648a2f2881af1ea1d32723218174682e685d0be217", kill_on_drop: false }`
[INFO] [stdout] 76176d282705627ad479fb648a2f2881af1ea1d32723218174682e685d0be217
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4aa12d45da00c5aaa3938d9cff80610d63722ddb9f21c727fbf41dca361a38fb
[INFO] running `Command { std: "docker" "start" "-a" "4aa12d45da00c5aaa3938d9cff80610d63722ddb9f21c727fbf41dca361a38fb", kill_on_drop: false }`
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking rppal v0.12.0
[INFO] [stderr]     Checking rust_gpiozero v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `handle`
[INFO] [stdout]    --> src/output_devices.rs:361:5
[INFO] [stdout]     |
[INFO] [stdout] 361 |     handle: Option<JoinHandle<()>>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `handle`
[INFO] [stdout]    --> src/output_devices.rs:361:5
[INFO] [stdout]     |
[INFO] [stdout] 361 |     handle: Option<JoinHandle<()>>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `inactive_state`
[INFO] [stdout]    --> src/output_devices.rs:364:5
[INFO] [stdout]     |
[INFO] [stdout] 364 |     inactive_state: bool,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `inactive_state`
[INFO] [stdout]    --> src/output_devices.rs:364:5
[INFO] [stdout]     |
[INFO] [stdout] 364 |     inactive_state: bool,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.08s
[INFO] running `Command { std: "docker" "inspect" "4aa12d45da00c5aaa3938d9cff80610d63722ddb9f21c727fbf41dca361a38fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4aa12d45da00c5aaa3938d9cff80610d63722ddb9f21c727fbf41dca361a38fb", kill_on_drop: false }`
[INFO] [stdout] 4aa12d45da00c5aaa3938d9cff80610d63722ddb9f21c727fbf41dca361a38fb