[INFO] crate dynamixel 0.1.1 is already in cache
[INFO] checking dynamixel-0.1.1 against try#d27c6c6a469a28343396a8f3ac1c9d403aabda69 for pr-66037
[INFO] extracting crate dynamixel 0.1.1 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate dynamixel 0.1.1 on toolchain d27c6c6a469a28343396a8f3ac1c9d403aabda69
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d27c6c6a469a28343396a8f3ac1c9d403aabda69" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate dynamixel 0.1.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate dynamixel 0.1.1
[INFO] tweaked toml for crates.io crate dynamixel 0.1.1 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d27c6c6a469a28343396a8f3ac1c9d403aabda69" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d27c6c6a469a28343396a8f3ac1c9d403aabda69" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+d27c6c6a469a28343396a8f3ac1c9d403aabda69" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 058f0838714fbf5f5c20c4c3a368f2910b2288ec47e28d7db6b6306cb7cd02de
[INFO] running `"docker" "start" "-a" "058f0838714fbf5f5c20c4c3a368f2910b2288ec47e28d7db6b6306cb7cd02de"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling nix v0.10.0
[INFO] [stderr]     Checking bit_field v0.9.0
[INFO] [stderr]    Compiling libudev-sys v0.1.4
[INFO] [stderr]     Checking badlog v1.1.1
[INFO] [stderr]     Checking dynamixel v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]   --> src/lib.rs:10:1
[INFO] [stderr]    |
[INFO] [stderr] 10 | #[macro_use]
[INFO] [stderr]    | ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `BaudRate`
[INFO] [stderr]  --> src/protocol1/mod.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use BaudRate;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `CommunicationError`
[INFO] [stderr]  --> src/protocol1/mod.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use CommunicationError;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `BaudRate`
[INFO] [stderr]   --> src/protocol2/mod.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 | use BaudRate;
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Interface`
[INFO] [stderr]   --> src/protocol2/mod.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 | use Interface;
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Broadcast`
[INFO] [stderr]    --> src/protocol1/mod.rs:330:5
[INFO] [stderr]     |
[INFO] [stderr] 330 |     Broadcast,
[INFO] [stderr]     |     ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `unicast`
[INFO] [stderr]    --> src/protocol1/mod.rs:334:5
[INFO] [stderr]     |
[INFO] [stderr] 334 |     pub fn unicast(id: u8) -> PacketID {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `broadcast`
[INFO] [stderr]    --> src/protocol1/mod.rs:339:5
[INFO] [stderr]     |
[INFO] [stderr] 339 |     pub fn broadcast() -> PacketID {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `value`
[INFO] [stderr]    --> src/protocol1/mod.rs:369:5
[INFO] [stderr]     |
[INFO] [stderr] 369 |     fn value(&self) -> u16 {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `calc`
[INFO] [stderr]   --> src/protocol2/crc.rs:44:5
[INFO] [stderr]    |
[INFO] [stderr] 44 |     pub fn calc(data: &[u8]) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `variants`
[INFO] [stderr]    --> src/lib.rs:137:5
[INFO] [stderr]     |
[INFO] [stderr] 137 |     fn variants() -> &'static [Self] {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Checking libudev v0.2.0
[INFO] [stderr]     Checking serialport v2.3.0
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]   --> src/lib.rs:10:1
[INFO] [stderr]    |
[INFO] [stderr] 10 | #[macro_use]
[INFO] [stderr]    | ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `BaudRate`
[INFO] [stderr]  --> src/protocol1/mod.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use BaudRate;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `CommunicationError`
[INFO] [stderr]  --> src/protocol1/mod.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use CommunicationError;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `BaudRate`
[INFO] [stderr]   --> src/protocol2/mod.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 | use BaudRate;
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Interface`
[INFO] [stderr]   --> src/protocol2/mod.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 | use Interface;
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `value`
[INFO] [stderr]    --> src/protocol1/mod.rs:369:5
[INFO] [stderr]     |
[INFO] [stderr] 369 |     fn value(&self) -> u16 {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `variants`
[INFO] [stderr]    --> src/lib.rs:137:5
[INFO] [stderr]     |
[INFO] [stderr] 137 |     fn variants() -> &'static [Self] {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.15s
[INFO] running `"docker" "inspect" "058f0838714fbf5f5c20c4c3a368f2910b2288ec47e28d7db6b6306cb7cd02de"`
[INFO] running `"docker" "rm" "-f" "058f0838714fbf5f5c20c4c3a368f2910b2288ec47e28d7db6b6306cb7cd02de"`
[INFO] [stdout] 058f0838714fbf5f5c20c4c3a368f2910b2288ec47e28d7db6b6306cb7cd02de