[INFO] fetching crate rust_gpiozero 0.2.1...
[INFO] building rust_gpiozero-0.2.1 against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] extracting crate rust_gpiozero 0.2.1 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate rust_gpiozero 0.2.1 on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "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-2-tc1/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: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "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 rppal v0.12.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 89b1aa345a16c92b01aae6b9ab6e99c0a075d6984c33f90bb8d82ba07ff89ef8
[INFO] running `Command { std: "docker" "start" "-a" "89b1aa345a16c92b01aae6b9ab6e99c0a075d6984c33f90bb8d82ba07ff89ef8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "89b1aa345a16c92b01aae6b9ab6e99c0a075d6984c33f90bb8d82ba07ff89ef8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "89b1aa345a16c92b01aae6b9ab6e99c0a075d6984c33f90bb8d82ba07ff89ef8", kill_on_drop: false }`
[INFO] [stdout] 89b1aa345a16c92b01aae6b9ab6e99c0a075d6984c33f90bb8d82ba07ff89ef8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e8189e839ceb5ec99eb019973bfe2e413ae75b3fe8c8ac712dd347d1e7bdb1a7
[INFO] running `Command { std: "docker" "start" "-a" "e8189e839ceb5ec99eb019973bfe2e413ae75b3fe8c8ac712dd347d1e7bdb1a7", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]    Compiling rppal v0.12.0
[INFO] [stderr]    Compiling rust_gpiozero v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `inactive_state` is never read
[INFO] [stdout]   --> src/devices.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub struct GpioDevice {
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 34 |     inactive_state: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `GpioDevice` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `bounce_time` is never read
[INFO] [stdout]    --> src/input_devices.rs:101:5
[INFO] [stdout]     |
[INFO] [stdout] 97  | pub struct DigitalInputDevice {
[INFO] [stdout]     |            ------------------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 101 |     bounce_time: Option<f32>,
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `DigitalInputDevice` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.09s
[INFO] running `Command { std: "docker" "inspect" "e8189e839ceb5ec99eb019973bfe2e413ae75b3fe8c8ac712dd347d1e7bdb1a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e8189e839ceb5ec99eb019973bfe2e413ae75b3fe8c8ac712dd347d1e7bdb1a7", kill_on_drop: false }`
[INFO] [stdout] e8189e839ceb5ec99eb019973bfe2e413ae75b3fe8c8ac712dd347d1e7bdb1a7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9f1c4ae6e75c1bfc5ed553942b0158a88ef4107ed6f368a235db250d93101be7
[INFO] running `Command { std: "docker" "start" "-a" "9f1c4ae6e75c1bfc5ed553942b0158a88ef4107ed6f368a235db250d93101be7", kill_on_drop: false }`
[INFO] [stdout] warning: field `inactive_state` is never read
[INFO] [stdout]   --> src/devices.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub struct GpioDevice {
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 34 |     inactive_state: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `GpioDevice` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `bounce_time` is never read
[INFO] [stdout]    --> src/input_devices.rs:101:5
[INFO] [stdout]     |
[INFO] [stdout] 97  | pub struct DigitalInputDevice {
[INFO] [stdout]     |            ------------------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 101 |     bounce_time: Option<f32>,
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `DigitalInputDevice` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rust_gpiozero v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `inactive_state` is never read
[INFO] [stdout]   --> src/devices.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub struct GpioDevice {
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 34 |     inactive_state: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `GpioDevice` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `bounce_time` is never read
[INFO] [stdout]    --> src/input_devices.rs:101:5
[INFO] [stdout]     |
[INFO] [stdout] 97  | pub struct DigitalInputDevice {
[INFO] [stdout]     |            ------------------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 101 |     bounce_time: Option<f32>,
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `DigitalInputDevice` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.18s
[INFO] running `Command { std: "docker" "inspect" "9f1c4ae6e75c1bfc5ed553942b0158a88ef4107ed6f368a235db250d93101be7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f1c4ae6e75c1bfc5ed553942b0158a88ef4107ed6f368a235db250d93101be7", kill_on_drop: false }`
[INFO] [stdout] 9f1c4ae6e75c1bfc5ed553942b0158a88ef4107ed6f368a235db250d93101be7