[INFO] fetching crate dynamixel 0.1.1...
[INFO] testing dynamixel-0.1.1 against master#b70888601af92f6cdc0364abab3446e418b91d36 for pr-86479
[INFO] extracting crate dynamixel 0.1.1 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate dynamixel 0.1.1 on toolchain b70888601af92f6cdc0364abab3446e418b91d36
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "fetch" "--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-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 4f62a032f453cba895313f409cfe94b873a388c69a52f6eefc67fe6035b2fe3f
[INFO] running `Command { std: "docker" "start" "-a" "4f62a032f453cba895313f409cfe94b873a388c69a52f6eefc67fe6035b2fe3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4f62a032f453cba895313f409cfe94b873a388c69a52f6eefc67fe6035b2fe3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f62a032f453cba895313f409cfe94b873a388c69a52f6eefc67fe6035b2fe3f", kill_on_drop: false }`
[INFO] [stdout] 4f62a032f453cba895313f409cfe94b873a388c69a52f6eefc67fe6035b2fe3f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+b70888601af92f6cdc0364abab3446e418b91d36" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1f6286b9118964debf9d2371f69eb9996bd663eb53de40aa21efb8f81e191699
[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" "1f6286b9118964debf9d2371f69eb9996bd663eb53de40aa21efb8f81e191699", kill_on_drop: false }`
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling bit_field v0.9.0
[INFO] [stderr]    Compiling dynamixel v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]   --> src/lib.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | #[macro_use]
[INFO] [stdout]    | ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BaudRate`
[INFO] [stdout]  --> src/protocol1/mod.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use BaudRate;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `CommunicationError`
[INFO] [stdout]  --> src/protocol1/mod.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use CommunicationError;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout]    --> src/protocol1/mod.rs:168:20
[INFO] [stdout]     |
[INFO] [stdout] 168 |     fn deserialize(&[u8]) -> Self;
[INFO] [stdout]     |                    ^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &[u8]`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]     = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BaudRate`
[INFO] [stdout]   --> src/protocol2/mod.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use BaudRate;
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout]    --> src/protocol2/mod.rs:169:20
[INFO] [stdout]     |
[INFO] [stdout] 169 |     fn deserialize(&[u8]) -> Self;
[INFO] [stdout]     |                    ^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &[u8]`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]     = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Interface`
[INFO] [stdout]   --> src/protocol2/mod.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use Interface;
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `id`
[INFO] [stdout]   --> src/protocol1/instruction.rs:70:5
[INFO] [stdout]    |
[INFO] [stdout] 70 |     pub id: ServoID,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `id`
[INFO] [stdout]    --> src/protocol1/instruction.rs:110:5
[INFO] [stdout]     |
[INFO] [stdout] 110 |     pub id: ServoID,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Broadcast`
[INFO] [stdout]    --> src/protocol1/mod.rs:330:5
[INFO] [stdout]     |
[INFO] [stdout] 330 |     Broadcast,
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `unicast`
[INFO] [stdout]    --> src/protocol1/mod.rs:334:12
[INFO] [stdout]     |
[INFO] [stdout] 334 |     pub fn unicast(id: u8) -> PacketID {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `broadcast`
[INFO] [stdout]    --> src/protocol1/mod.rs:339:12
[INFO] [stdout]     |
[INFO] [stdout] 339 |     pub fn broadcast() -> PacketID {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `value`
[INFO] [stdout]    --> src/protocol1/mod.rs:369:8
[INFO] [stdout]     |
[INFO] [stdout] 369 |     fn value(&self) -> u16 {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `calc`
[INFO] [stdout]   --> src/protocol2/crc.rs:44:12
[INFO] [stdout]    |
[INFO] [stdout] 44 |     pub fn calc(data: &[u8]) -> Self {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `variants`
[INFO] [stdout]    --> src/lib.rs:137:8
[INFO] [stdout]     |
[INFO] [stdout] 137 |     fn variants() -> &'static [Self] {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.60s
[INFO] running `Command { std: "docker" "inspect" "1f6286b9118964debf9d2371f69eb9996bd663eb53de40aa21efb8f81e191699", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f6286b9118964debf9d2371f69eb9996bd663eb53de40aa21efb8f81e191699", kill_on_drop: false }`
[INFO] [stdout] 1f6286b9118964debf9d2371f69eb9996bd663eb53de40aa21efb8f81e191699
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5307dcd8c47d927e3de7907d01fd9cbbec411ddc1206db7bbe18a2bfd7a5cee5
[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" "5307dcd8c47d927e3de7907d01fd9cbbec411ddc1206db7bbe18a2bfd7a5cee5", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling nix v0.10.0
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling libudev-sys v0.1.4
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]   --> src/lib.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | #[macro_use]
[INFO] [stdout]    | ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BaudRate`
[INFO] [stdout]  --> src/protocol1/mod.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use BaudRate;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `CommunicationError`
[INFO] [stdout]  --> src/protocol1/mod.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use CommunicationError;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout]    --> src/protocol1/mod.rs:168:20
[INFO] [stdout]     |
[INFO] [stdout] 168 |     fn deserialize(&[u8]) -> Self;
[INFO] [stdout]     |                    ^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &[u8]`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]     = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BaudRate`
[INFO] [stdout]   --> src/protocol2/mod.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use BaudRate;
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout]    --> src/protocol2/mod.rs:169:20
[INFO] [stdout]     |
[INFO] [stdout] 169 |     fn deserialize(&[u8]) -> Self;
[INFO] [stdout]     |                    ^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &[u8]`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]     = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Interface`
[INFO] [stdout]   --> src/protocol2/mod.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use Interface;
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `id`
[INFO] [stdout]   --> src/protocol1/instruction.rs:70:5
[INFO] [stdout]    |
[INFO] [stdout] 70 |     pub id: ServoID,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `id`
[INFO] [stdout]    --> src/protocol1/instruction.rs:110:5
[INFO] [stdout]     |
[INFO] [stdout] 110 |     pub id: ServoID,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Broadcast`
[INFO] [stdout]    --> src/protocol1/mod.rs:330:5
[INFO] [stdout]     |
[INFO] [stdout] 330 |     Broadcast,
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `unicast`
[INFO] [stdout]    --> src/protocol1/mod.rs:334:12
[INFO] [stdout]     |
[INFO] [stdout] 334 |     pub fn unicast(id: u8) -> PacketID {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `broadcast`
[INFO] [stdout]    --> src/protocol1/mod.rs:339:12
[INFO] [stdout]     |
[INFO] [stdout] 339 |     pub fn broadcast() -> PacketID {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `value`
[INFO] [stdout]    --> src/protocol1/mod.rs:369:8
[INFO] [stdout]     |
[INFO] [stdout] 369 |     fn value(&self) -> u16 {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `calc`
[INFO] [stdout]   --> src/protocol2/crc.rs:44:12
[INFO] [stdout]    |
[INFO] [stdout] 44 |     pub fn calc(data: &[u8]) -> Self {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `variants`
[INFO] [stdout]    --> src/lib.rs:137:8
[INFO] [stdout]     |
[INFO] [stdout] 137 |     fn variants() -> &'static [Self] {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling bytes v0.4.12
[INFO] [stderr]    Compiling libudev v0.2.0
[INFO] [stderr]    Compiling env_logger v0.5.13
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling badlog v1.1.1
[INFO] [stderr]    Compiling serialport v2.3.0
[INFO] [stderr]    Compiling dynamixel v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]   --> src/lib.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | #[macro_use]
[INFO] [stdout]    | ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BaudRate`
[INFO] [stdout]  --> src/protocol1/mod.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use BaudRate;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `CommunicationError`
[INFO] [stdout]  --> src/protocol1/mod.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use CommunicationError;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout]    --> src/protocol1/mod.rs:168:20
[INFO] [stdout]     |
[INFO] [stdout] 168 |     fn deserialize(&[u8]) -> Self;
[INFO] [stdout]     |                    ^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &[u8]`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]     = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BaudRate`
[INFO] [stdout]   --> src/protocol2/mod.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use BaudRate;
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout]    --> src/protocol2/mod.rs:169:20
[INFO] [stdout]     |
[INFO] [stdout] 169 |     fn deserialize(&[u8]) -> Self;
[INFO] [stdout]     |                    ^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &[u8]`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]     = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Interface`
[INFO] [stdout]   --> src/protocol2/mod.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use Interface;
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `id`
[INFO] [stdout]   --> src/protocol1/instruction.rs:70:5
[INFO] [stdout]    |
[INFO] [stdout] 70 |     pub id: ServoID,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `id`
[INFO] [stdout]    --> src/protocol1/instruction.rs:110:5
[INFO] [stdout]     |
[INFO] [stdout] 110 |     pub id: ServoID,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `value`
[INFO] [stdout]    --> src/protocol1/mod.rs:369:8
[INFO] [stdout]     |
[INFO] [stdout] 369 |     fn value(&self) -> u16 {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `variants`
[INFO] [stdout]    --> src/lib.rs:137:8
[INFO] [stdout]     |
[INFO] [stdout] 137 |     fn variants() -> &'static [Self] {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 9.69s
[INFO] running `Command { std: "docker" "inspect" "5307dcd8c47d927e3de7907d01fd9cbbec411ddc1206db7bbe18a2bfd7a5cee5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5307dcd8c47d927e3de7907d01fd9cbbec411ddc1206db7bbe18a2bfd7a5cee5", kill_on_drop: false }`
[INFO] [stdout] 5307dcd8c47d927e3de7907d01fd9cbbec411ddc1206db7bbe18a2bfd7a5cee5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9e11d610e424e9b78e22c4b1e6b184ce347ade2f1e4ce555a90fa630ad28bb67
[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" "9e11d610e424e9b78e22c4b1e6b184ce347ade2f1e4ce555a90fa630ad28bb67", kill_on_drop: false }`
[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: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stderr]    --> src/protocol1/mod.rs:168:20
[INFO] [stderr]     |
[INFO] [stderr] 168 |     fn deserialize(&[u8]) -> Self;
[INFO] [stderr]     |                    ^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &[u8]`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stderr]     = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[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: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stderr]    --> src/protocol2/mod.rs:169:20
[INFO] [stderr]     |
[INFO] [stderr] 169 |     fn deserialize(&[u8]) -> Self;
[INFO] [stderr]     |                    ^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &[u8]`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stderr]     = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[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: field is never read: `id`
[INFO] [stderr]   --> src/protocol1/instruction.rs:70:5
[INFO] [stderr]    |
[INFO] [stderr] 70 |     pub id: ServoID,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `id`
[INFO] [stderr]    --> src/protocol1/instruction.rs:110:5
[INFO] [stderr]     |
[INFO] [stderr] 110 |     pub id: ServoID,
[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] warning: associated function is never used: `unicast`
[INFO] [stderr]    --> src/protocol1/mod.rs:334:12
[INFO] [stderr]     |
[INFO] [stderr] 334 |     pub fn unicast(id: u8) -> PacketID {
[INFO] [stderr]     |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `broadcast`
[INFO] [stderr]    --> src/protocol1/mod.rs:339:12
[INFO] [stderr]     |
[INFO] [stderr] 339 |     pub fn broadcast() -> PacketID {
[INFO] [stderr]     |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `value`
[INFO] [stderr]    --> src/protocol1/mod.rs:369:8
[INFO] [stderr]     |
[INFO] [stderr] 369 |     fn value(&self) -> u16 {
[INFO] [stderr]     |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `calc`
[INFO] [stderr]   --> src/protocol2/crc.rs:44:12
[INFO] [stderr]    |
[INFO] [stderr] 44 |     pub fn calc(data: &[u8]) -> Self {
[INFO] [stderr]    |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `variants`
[INFO] [stderr]    --> src/lib.rs:137:8
[INFO] [stderr]     |
[INFO] [stderr] 137 |     fn variants() -> &'static [Self] {
[INFO] [stderr]     |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `dynamixel` (lib) generated 15 warnings
[INFO] [stderr] warning: `dynamixel` (lib test) generated 11 warnings (11 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/dynamixel-a526d68c417d6eb5)
[INFO] [stdout] 
[INFO] [stdout] running 15 tests
[INFO] [stdout] test protocol2::crc::tests::calculate_checksum_raw ... ok
[INFO] [stdout] test protocol2::instruction::tests::test_ping ... ok
[INFO] [stdout] test protocol2::instruction::tests::test_pong ... ok
[INFO] [stdout] test protocol2::instruction::tests::test_read ... ok
[INFO] [stdout] test protocol2::instruction::tests::test_read_response_byte ... ok
[INFO] [stdout] test protocol2::instruction::tests::test_write ... ok
[INFO] [stdout] test protocol2::instruction::tests::test_write_response_byte ... ok
[INFO] [stdout] test protocol2::instruction::tests::test_write_response_mixed ... ok
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] test protocol1::instruction::tests::test_read ... ok
[INFO] [stdout] test protocol1::instruction::tests::test_ping ... ok
[INFO] [stdout] test protocol1::instruction::tests::test_pong ... ok
[INFO] [stdout] test protocol1::instruction::tests::test_write ... ok
[INFO] [stdout] test protocol2::instruction::tests::test_pong_mixed ... ok
[INFO] [stdout] test protocol2::instruction::tests::test_read_response_slice ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 15 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests dynamixel
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "9e11d610e424e9b78e22c4b1e6b184ce347ade2f1e4ce555a90fa630ad28bb67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e11d610e424e9b78e22c4b1e6b184ce347ade2f1e4ce555a90fa630ad28bb67", kill_on_drop: false }`
[INFO] [stdout] 9e11d610e424e9b78e22c4b1e6b184ce347ade2f1e4ce555a90fa630ad28bb67