[INFO] cloning repository https://github.com/dmweis/hopper_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dmweis/hopper_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdmweis%2Fhopper_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdmweis%2Fhopper_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 415f413bfed0884ef317033bc73c2a283b0f7578
[INFO] checking dmweis/hopper_rust against try#3e22d1f9053c0fc87629b3c6d5d9567856368e5d for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdmweis%2Fhopper_rust" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dmweis/hopper_rust on toolchain 3e22d1f9053c0fc87629b3c6d5d9567856368e5d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dmweis/hopper_rust
[INFO] finished tweaking git repo https://github.com/dmweis/hopper_rust
[INFO] tweaked toml for git repo https://github.com/dmweis/hopper_rust written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/dmweis/hopper_rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/dmweis/dynamixel_driver`
[INFO] [stderr]     Updating git repository `https://github.com/dmweis/looprate`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded simplelog v0.7.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "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] b1c711ada0c87fc7efacec1e7398fcdc061d836cab08962c2ea5b4d6bc7a92d8
[INFO] running `Command { std: "docker" "start" "-a" "b1c711ada0c87fc7efacec1e7398fcdc061d836cab08962c2ea5b4d6bc7a92d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b1c711ada0c87fc7efacec1e7398fcdc061d836cab08962c2ea5b4d6bc7a92d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b1c711ada0c87fc7efacec1e7398fcdc061d836cab08962c2ea5b4d6bc7a92d8", kill_on_drop: false }`
[INFO] [stdout] b1c711ada0c87fc7efacec1e7398fcdc061d836cab08962c2ea5b4d6bc7a92d8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 381802f7dd024ab522e4166a8c011dc861d101adf6c60064d7f1c7e34bea242d
[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" "381802f7dd024ab522e4166a8c011dc861d101adf6c60064d7f1c7e34bea242d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]    Compiling syn v1.0.18
[INFO] [stderr]    Compiling serde v1.0.106
[INFO] [stderr]     Checking mint v0.5.5
[INFO] [stderr]     Checking looprate v0.1.0 (https://github.com/dmweis/looprate#106cfdbc)
[INFO] [stderr]    Compiling ring v0.14.6
[INFO] [stderr]    Compiling backtrace-sys v0.1.37
[INFO] [stderr]     Checking tokio-sync v0.1.8
[INFO] [stderr]    Compiling memoffset v0.5.4
[INFO] [stderr]    Compiling quote v1.0.4
[INFO] [stderr]     Checking tokio-executor v0.1.10
[INFO] [stderr]     Checking crossbeam-queue v0.2.1
[INFO] [stderr]    Compiling derive_more v0.13.0
[INFO] [stderr]     Checking crossbeam-epoch v0.8.2
[INFO] [stderr]     Checking tokio-timer v0.2.13
[INFO] [stderr]     Checking tokio-current-thread v0.1.7
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
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[INFO] [stderr]     Checking tokio-reactor v0.1.12
[INFO] [stderr]     Checking tokio-tcp v0.1.4
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[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]     Checking sct v0.5.0
[INFO] [stderr]     Checking webpki v0.19.1
[INFO] [stderr]     Checking rustls v0.15.2
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]     Checking serialport v3.3.0
[INFO] [stderr]    Compiling serde_derive v1.0.106
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking dynamixel_driver v0.1.0 (https://github.com/dmweis/dynamixel_driver#927ad196)
[INFO] [stderr]     Checking tokio-rustls v0.9.4
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking mqtt311 v0.2.0
[INFO] [stderr]     Checking serde_json v1.0.52
[INFO] [stderr]     Checking uuid v0.7.4
[INFO] [stderr]     Checking serde_yaml v0.8.11
[INFO] [stderr]     Checking jsonwebtoken v6.0.1
[INFO] [stderr]     Checking rumqtt v0.31.0
[INFO] [stderr]     Checking hopper_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Serialize`
[INFO] [stdout]   --> src/udp_adaptor.rs:11:26
[INFO] [stdout]    |
[INFO] [stdout] 11 | use serde::{Deserialize, Serialize};
[INFO] [stdout]    |                          ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `looprate::RateTimer`
[INFO] [stdout]   --> src/main.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use looprate::RateTimer;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Serialize`
[INFO] [stdout]   --> src/udp_adaptor.rs:11:26
[INFO] [stdout]    |
[INFO] [stdout] 11 | use serde::{Deserialize, Serialize};
[INFO] [stdout]    |                          ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `looprate::RateTimer`
[INFO] [stdout]   --> src/main.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use looprate::RateTimer;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `receiver`
[INFO] [stdout]   --> src/udp_adaptor.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     receiver: Receiver<BodyMotorPositions>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `start_receiver_loop`
[INFO] [stdout]   --> src/udp_adaptor.rs:79:4
[INFO] [stdout]    |
[INFO] [stdout] 79 | fn start_receiver_loop(
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/udp_adaptor.rs:103:12
[INFO] [stdout]     |
[INFO] [stdout] 103 |     pub fn new() -> UdpCommandReceiver {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_command`
[INFO] [stdout]    --> src/udp_adaptor.rs:120:12
[INFO] [stdout]     |
[INFO] [stdout] 120 |     pub fn get_command(&mut self) -> BodyMotorPositions {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `receiver`
[INFO] [stdout]   --> src/udp_adaptor.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     receiver: Receiver<BodyMotorPositions>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `start_receiver_loop`
[INFO] [stdout]   --> src/udp_adaptor.rs:79:4
[INFO] [stdout]    |
[INFO] [stdout] 79 | fn start_receiver_loop(
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/udp_adaptor.rs:103:12
[INFO] [stdout]     |
[INFO] [stdout] 103 |     pub fn new() -> UdpCommandReceiver {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_command`
[INFO] [stdout]    --> src/udp_adaptor.rs:120:12
[INFO] [stdout]     |
[INFO] [stdout] 120 |     pub fn get_command(&mut self) -> BodyMotorPositions {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 19s
[INFO] running `Command { std: "docker" "inspect" "381802f7dd024ab522e4166a8c011dc861d101adf6c60064d7f1c7e34bea242d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "381802f7dd024ab522e4166a8c011dc861d101adf6c60064d7f1c7e34bea242d", kill_on_drop: false }`
[INFO] [stdout] 381802f7dd024ab522e4166a8c011dc861d101adf6c60064d7f1c7e34bea242d