[INFO] fetching crate rust_gpiozero 0.2.0...
[INFO] checking rust_gpiozero-0.2.0 against master#a5f164faad4a2fed606b8160fd7ecd2d5cbba381 for pr-84920
[INFO] extracting crate rust_gpiozero 0.2.0 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate rust_gpiozero 0.2.0 on toolchain a5f164faad4a2fed606b8160fd7ecd2d5cbba381
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rust_gpiozero 0.2.0
[INFO] finished tweaking crates.io crate rust_gpiozero 0.2.0
[INFO] tweaked toml for crates.io crate rust_gpiozero 0.2.0 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 277446c5f6a04f3bc29a1432b9194ad4e5f582b0a7bcf7f3ece30859f474c4ac
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "277446c5f6a04f3bc29a1432b9194ad4e5f582b0a7bcf7f3ece30859f474c4ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "277446c5f6a04f3bc29a1432b9194ad4e5f582b0a7bcf7f3ece30859f474c4ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "277446c5f6a04f3bc29a1432b9194ad4e5f582b0a7bcf7f3ece30859f474c4ac", kill_on_drop: false }`
[INFO] [stdout] 277446c5f6a04f3bc29a1432b9194ad4e5f582b0a7bcf7f3ece30859f474c4ac
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b6bd5018a14704263f9441bffc9a20b2d0ca7cefb5c207dfe58a33ea25ef3caf
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "b6bd5018a14704263f9441bffc9a20b2d0ca7cefb5c207dfe58a33ea25ef3caf", kill_on_drop: false }`
[INFO] [stderr]     Checking rppal v0.11.3
[INFO] [stderr]     Checking rust_gpiozero v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `handle`
[INFO] [stdout]    --> src/output_devices.rs:371:5
[INFO] [stdout]     |
[INFO] [stdout] 371 |     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:374:5
[INFO] [stdout]     |
[INFO] [stdout] 374 |     inactive_state: bool,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `value_to_state`
[INFO] [stdout]   --> src/output_devices.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 |         fn value_to_state(&self, value: bool) -> bool {
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/input_devices.rs:57:5
[INFO] [stdout]    |
[INFO] [stdout] 57 |     impl_io_device!();
[INFO] [stdout]    |     ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `value_to_state`
[INFO] [stdout]    --> src/output_devices.rs:20:9
[INFO] [stdout]     |
[INFO] [stdout] 20  |         fn value_to_state(&self, value: bool) -> bool {
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     | 
[INFO] [stdout]    ::: src/input_devices.rs:148:5
[INFO] [stdout]     |
[INFO] [stdout] 148 |     impl_io_device!();
[INFO] [stdout]     |     ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `inactive_state`
[INFO] [stdout]    --> src/input_devices.rs:169:5
[INFO] [stdout]     |
[INFO] [stdout] 169 |     inactive_state: bool,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `bounce_time`
[INFO] [stdout]    --> src/input_devices.rs:170:5
[INFO] [stdout]     |
[INFO] [stdout] 170 |     bounce_time: Option<f32>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `value_to_state`
[INFO] [stdout]    --> src/output_devices.rs:20:9
[INFO] [stdout]     |
[INFO] [stdout] 20  |         fn value_to_state(&self, value: bool) -> bool {
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     | 
[INFO] [stdout]    ::: src/input_devices.rs:209:5
[INFO] [stdout]     |
[INFO] [stdout] 209 |     impl_io_device!();
[INFO] [stdout]     |     ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `handle`
[INFO] [stdout]    --> src/output_devices.rs:371:5
[INFO] [stdout]     |
[INFO] [stdout] 371 |     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:374:5
[INFO] [stdout]     |
[INFO] [stdout] 374 |     inactive_state: bool,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `value_to_state`
[INFO] [stdout]   --> src/output_devices.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 |         fn value_to_state(&self, value: bool) -> bool {
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/input_devices.rs:57:5
[INFO] [stdout]    |
[INFO] [stdout] 57 |     impl_io_device!();
[INFO] [stdout]    |     ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `value_to_state`
[INFO] [stdout]    --> src/output_devices.rs:20:9
[INFO] [stdout]     |
[INFO] [stdout] 20  |         fn value_to_state(&self, value: bool) -> bool {
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     | 
[INFO] [stdout]    ::: src/input_devices.rs:148:5
[INFO] [stdout]     |
[INFO] [stdout] 148 |     impl_io_device!();
[INFO] [stdout]     |     ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `inactive_state`
[INFO] [stdout]    --> src/input_devices.rs:169:5
[INFO] [stdout]     |
[INFO] [stdout] 169 |     inactive_state: bool,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `bounce_time`
[INFO] [stdout]    --> src/input_devices.rs:170:5
[INFO] [stdout]     |
[INFO] [stdout] 170 |     bounce_time: Option<f32>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `value_to_state`
[INFO] [stdout]    --> src/output_devices.rs:20:9
[INFO] [stdout]     |
[INFO] [stdout] 20  |         fn value_to_state(&self, value: bool) -> bool {
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     | 
[INFO] [stdout]    ::: src/input_devices.rs:209:5
[INFO] [stdout]     |
[INFO] [stdout] 209 |     impl_io_device!();
[INFO] [stdout]     |     ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]   --> examples/servo.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | /     loop{
[INFO] [stdout] 12 | |         servo.max();
[INFO] [stdout] 13 | |         thread::sleep(Duration::from_millis(2000));
[INFO] [stdout] 14 | |         servo.min();
[INFO] [stdout] 15 | |         thread::sleep(Duration::from_millis(2000));
[INFO] [stdout] 16 | |     }
[INFO] [stdout]    | |_____- any code following this expression is unreachable
[INFO] [stdout] ...
[INFO] [stdout] 19 |       let _ = io::stdin().read(&mut [0u8]).unwrap();
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.18s
[INFO] running `Command { std: "docker" "inspect" "b6bd5018a14704263f9441bffc9a20b2d0ca7cefb5c207dfe58a33ea25ef3caf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6bd5018a14704263f9441bffc9a20b2d0ca7cefb5c207dfe58a33ea25ef3caf", kill_on_drop: false }`
[INFO] [stdout] b6bd5018a14704263f9441bffc9a20b2d0ca7cefb5c207dfe58a33ea25ef3caf