[INFO] cloning repository https://github.com/project-ardeck/libardeck
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/project-ardeck/libardeck" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fproject-ardeck%2Flibardeck", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fproject-ardeck%2Flibardeck'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ebfe17c17ae40f3e7db69757d1a37c121bcd10f4
[INFO] checking project-ardeck/libardeck against try#b152f5575a2ac7126ae0019e4e679abe9399213e for pr-157841
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fproject-ardeck%2Flibardeck" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/project-ardeck/libardeck
[INFO] finished tweaking git repo https://github.com/project-ardeck/libardeck
[INFO] tweaked toml for git repo https://github.com/project-ardeck/libardeck written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/project-ardeck/libardeck on toolchain b152f5575a2ac7126ae0019e4e679abe9399213e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b152f5575a2ac7126ae0019e4e679abe9399213e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/project-ardeck/libardeck 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" "+b152f5575a2ac7126ae0019e4e679abe9399213e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking project-ardeck/libardeck against try#b152f5575a2ac7126ae0019e4e679abe9399213e for pr-157841
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fproject-ardeck%2Flibardeck" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/project-ardeck/libardeck
[INFO] finished tweaking git repo https://github.com/project-ardeck/libardeck
[INFO] tweaked toml for git repo https://github.com/project-ardeck/libardeck written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/project-ardeck/libardeck on toolchain b152f5575a2ac7126ae0019e4e679abe9399213e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b152f5575a2ac7126ae0019e4e679abe9399213e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/project-ardeck/libardeck 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" "+b152f5575a2ac7126ae0019e4e679abe9399213e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3e793bdf10248eb2ddbd6b0faebed8155c11b4589982e2893733958d93e8d540" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 18362268a667b1178f8a09e4d869f05eeee8e6f6446d68d1be2ba35d0b4bc040
[INFO] running `Command { std: "docker" "start" "18362268a667b1178f8a09e4d869f05eeee8e6f6446d68d1be2ba35d0b4bc040", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "18362268a667b1178f8a09e4d869f05eeee8e6f6446d68d1be2ba35d0b4bc040" "/opt/rustwide/cargo-home/bin/cargo" "+b152f5575a2ac7126ae0019e4e679abe9399213e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-w" "/opt/rustwide/workdir" "--user" "0:0" "18362268a667b1178f8a09e4d869f05eeee8e6f6446d68d1be2ba35d0b4bc040" "/opt/rustwide/cargo-home/bin/cargo" "+b152f5575a2ac7126ae0019e4e679abe9399213e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] [stderr]     Checking ardeck v0.4.5 (/opt/rustwide/workdir/ardeck)
[INFO] [stdout] warning: unused import: `std::fmt::Display`
[INFO] [stdout]  --> ardeck/src/device/decode.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fmt::Display;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Local`
[INFO] [stdout]  --> ardeck/src/device/decode.rs:3:14
[INFO] [stdout]   |
[INFO] [stdout] 3 | use chrono::{Local, Utc};
[INFO] [stdout]   |              ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `default`, `self`, and `sleep`
[INFO] [stdout]  --> ardeck/src/device.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     default, fmt,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 6 |     sync::{Arc, mpsc},
[INFO] [stdout] 7 |     thread::{self, sleep},
[INFO] [stdout]   |              ^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fmt::Display`
[INFO] [stdout]  --> ardeck/src/device/decode.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fmt::Display;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `SerialPort`
[INFO] [stdout]   --> ardeck/src/device.rs:11:18
[INFO] [stdout]    |
[INFO] [stdout] 11 | use serialport::{SerialPort, SerialPortType, UsbPortInfo};
[INFO] [stdout]    |                  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `syn::token::Pub`
[INFO] [stdout]   --> ardeck/src/device.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use syn::token::Pub;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Local` and `Utc`
[INFO] [stdout]  --> ardeck/src/device/decode.rs:3:14
[INFO] [stdout]   |
[INFO] [stdout] 3 | use chrono::{Local, Utc};
[INFO] [stdout]   |              ^^^^^  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `default`, `self`, and `sleep`
[INFO] [stdout]  --> ardeck/src/device.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     default, fmt,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 6 |     sync::{Arc, mpsc},
[INFO] [stdout] 7 |     thread::{self, sleep},
[INFO] [stdout]   |              ^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `SerialPort`
[INFO] [stdout]   --> ardeck/src/device.rs:11:18
[INFO] [stdout]    |
[INFO] [stdout] 11 | use serialport::{SerialPort, SerialPortType, UsbPortInfo};
[INFO] [stdout]    |                  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `syn::token::Pub`
[INFO] [stdout]   --> ardeck/src/device.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use syn::token::Pub;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> ardeck/src/device.rs:281:29
[INFO] [stdout]     |
[INFO] [stdout] 281 |                         Err(e) => {
[INFO] [stdout]     |                             ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `connect_attempt_limit`
[INFO] [stdout]    --> ardeck/src/device.rs:207:13
[INFO] [stdout]     |
[INFO] [stdout] 207 |         let connect_attempt_limit = self.connect_attempt_limit;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_connect_attempt_limit`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `connect_retry_interval`
[INFO] [stdout]    --> ardeck/src/device.rs:208:13
[INFO] [stdout]     |
[INFO] [stdout] 208 |         let connect_retry_interval = self.connect_retry_interval.clone();
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_connect_retry_interval`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> ardeck/src/device.rs:281:29
[INFO] [stdout]     |
[INFO] [stdout] 281 |                         Err(e) => {
[INFO] [stdout]     |                             ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `connect_attempt_limit`
[INFO] [stdout]    --> ardeck/src/device.rs:207:13
[INFO] [stdout]     |
[INFO] [stdout] 207 |         let connect_attempt_limit = self.connect_attempt_limit;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_connect_attempt_limit`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `connect_retry_interval`
[INFO] [stdout]    --> ardeck/src/device.rs:208:13
[INFO] [stdout]     |
[INFO] [stdout] 208 |         let connect_retry_interval = self.connect_retry_interval.clone();
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_connect_retry_interval`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `device::Error` is more private than the item `device::Result`
[INFO] [stdout]    --> ardeck/src/device.rs:107:1
[INFO] [stdout]     |
[INFO] [stdout] 107 | pub type Result<T> = std::result::Result<T, Error>;
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^ type alias `device::Result` is reachable at visibility `pub`
[INFO] [stdout]     |
[INFO] [stdout] note: but type `device::Error` is only usable at visibility `pub(self)`
[INFO] [stdout]    --> ardeck/src/device.rs:100:1
[INFO] [stdout]     |
[INFO] [stdout] 100 | enum Error {
[INFO] [stdout]     | ^^^^^^^^^^
[INFO] [stdout]     = note: `#[warn(private_interfaces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `device::Error` is more private than the item `SessionEvent::Error::0`
[INFO] [stdout]    --> ardeck/src/device.rs:121:11
[INFO] [stdout]     |
[INFO] [stdout] 121 |     Error(Error),
[INFO] [stdout]     |           ^^^^^ field `SessionEvent::Error::0` is reachable at visibility `pub`
[INFO] [stdout]     |
[INFO] [stdout] note: but type `device::Error` is only usable at visibility `pub(self)`
[INFO] [stdout]    --> ardeck/src/device.rs:100:1
[INFO] [stdout]     |
[INFO] [stdout] 100 | enum Error {
[INFO] [stdout]     | ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `DeviceInfoList` is never used
[INFO] [stdout]   --> ardeck/src/device.rs:66:7
[INFO] [stdout]    |
[INFO] [stdout] 66 | trait DeviceInfoList {
[INFO] [stdout]    |       ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `device::Error` is more private than the item `device::Result`
[INFO] [stdout]    --> ardeck/src/device.rs:107:1
[INFO] [stdout]     |
[INFO] [stdout] 107 | pub type Result<T> = std::result::Result<T, Error>;
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^ type alias `device::Result` is reachable at visibility `pub`
[INFO] [stdout]     |
[INFO] [stdout] note: but type `device::Error` is only usable at visibility `pub(self)`
[INFO] [stdout]    --> ardeck/src/device.rs:100:1
[INFO] [stdout]     |
[INFO] [stdout] 100 | enum Error {
[INFO] [stdout]     | ^^^^^^^^^^
[INFO] [stdout]     = note: `#[warn(private_interfaces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `InitializationError` and `TimeOut` are never constructed
[INFO] [stdout]   --> ardeck/src/device.rs:86:5
[INFO] [stdout]    |
[INFO] [stdout] 85 | enum SessionErrorKind {
[INFO] [stdout]    |      ---------------- variants in this enum
[INFO] [stdout] 86 |     InitializationError,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 87 |     TimeOut,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `SessionErrorKind` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `device::Error` is more private than the item `SessionEvent::Error::0`
[INFO] [stdout]    --> ardeck/src/device.rs:121:11
[INFO] [stdout]     |
[INFO] [stdout] 121 |     Error(Error),
[INFO] [stdout]     |           ^^^^^ field `SessionEvent::Error::0` is reachable at visibility `pub`
[INFO] [stdout]     |
[INFO] [stdout] note: but type `device::Error` is only usable at visibility `pub(self)`
[INFO] [stdout]    --> ardeck/src/device.rs:100:1
[INFO] [stdout]     |
[INFO] [stdout] 100 | enum Error {
[INFO] [stdout]     | ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Session` is never constructed
[INFO] [stdout]    --> ardeck/src/device.rs:102:5
[INFO] [stdout]     |
[INFO] [stdout] 100 | enum Error {
[INFO] [stdout]     |      ----- variant in this enum
[INFO] [stdout] 101 |     #[error("Session error: `{0}`")]
[INFO] [stdout] 102 |     Session(SessionErrorKind),
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Error` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `state` is never read
[INFO] [stdout]    --> ardeck/src/device.rs:176:5
[INFO] [stdout]     |
[INFO] [stdout] 171 | pub struct Session {
[INFO] [stdout]     |            ------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 176 |     state: SessionEvent,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `dec_cobs` is never used
[INFO] [stdout]   --> ardeck/src/device/decode.rs:22:4
[INFO] [stdout]    |
[INFO] [stdout] 22 | fn dec_cobs(cobs_bytes: impl AsRef<[u8]>) -> Option<Vec<u8>> {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `DeviceInfoList` is never used
[INFO] [stdout]   --> ardeck/src/device.rs:66:7
[INFO] [stdout]    |
[INFO] [stdout] 66 | trait DeviceInfoList {
[INFO] [stdout]    |       ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `InitializationError` and `TimeOut` are never constructed
[INFO] [stdout]   --> ardeck/src/device.rs:86:5
[INFO] [stdout]    |
[INFO] [stdout] 85 | enum SessionErrorKind {
[INFO] [stdout]    |      ---------------- variants in this enum
[INFO] [stdout] 86 |     InitializationError,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 87 |     TimeOut,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `SessionErrorKind` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Session` is never constructed
[INFO] [stdout]    --> ardeck/src/device.rs:102:5
[INFO] [stdout]     |
[INFO] [stdout] 100 | enum Error {
[INFO] [stdout]     |      ----- variant in this enum
[INFO] [stdout] 101 |     #[error("Session error: `{0}`")]
[INFO] [stdout] 102 |     Session(SessionErrorKind),
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Error` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `state` is never read
[INFO] [stdout]    --> ardeck/src/device.rs:176:5
[INFO] [stdout]     |
[INFO] [stdout] 171 | pub struct Session {
[INFO] [stdout]     |            ------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 176 |     state: SessionEvent,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `dec_cobs` is never used
[INFO] [stdout]   --> ardeck/src/device/decode.rs:22:4
[INFO] [stdout]    |
[INFO] [stdout] 22 | fn dec_cobs(cobs_bytes: impl AsRef<[u8]>) -> Option<Vec<u8>> {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking ardeck_derive v0.1.0 (/opt/rustwide/workdir/ardeck_derive)
[INFO] [stdout] warning: unused import: `std::fmt::Display`
[INFO] [stdout]  --> ardeck/src/device/decode.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fmt::Display;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Local`
[INFO] [stdout]  --> ardeck/src/device/decode.rs:3:14
[INFO] [stdout]   |
[INFO] [stdout] 3 | use chrono::{Local, Utc};
[INFO] [stdout]   |              ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `default`, `self`, and `sleep`
[INFO] [stdout]  --> ardeck/src/device.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     default, fmt,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 6 |     sync::{Arc, mpsc},
[INFO] [stdout] 7 |     thread::{self, sleep},
[INFO] [stdout]   |              ^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `SerialPort`
[INFO] [stdout]   --> ardeck/src/device.rs:11:18
[INFO] [stdout]    |
[INFO] [stdout] 11 | use serialport::{SerialPort, SerialPortType, UsbPortInfo};
[INFO] [stdout]    |                  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `syn::token::Pub`
[INFO] [stdout]   --> ardeck/src/device.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use syn::token::Pub;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> ardeck/src/device.rs:281:29
[INFO] [stdout]     |
[INFO] [stdout] 281 |                         Err(e) => {
[INFO] [stdout]     |                             ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `connect_attempt_limit`
[INFO] [stdout]    --> ardeck/src/device.rs:207:13
[INFO] [stdout]     |
[INFO] [stdout] 207 |         let connect_attempt_limit = self.connect_attempt_limit;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_connect_attempt_limit`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `connect_retry_interval`
[INFO] [stdout]    --> ardeck/src/device.rs:208:13
[INFO] [stdout]     |
[INFO] [stdout] 208 |         let connect_retry_interval = self.connect_retry_interval.clone();
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_connect_retry_interval`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `device::Error` is more private than the item `device::Result`
[INFO] [stdout]    --> ardeck/src/device.rs:107:1
[INFO] [stdout]     |
[INFO] [stdout] 107 | pub type Result<T> = std::result::Result<T, Error>;
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^ type alias `device::Result` is reachable at visibility `pub`
[INFO] [stdout]     |
[INFO] [stdout] note: but type `device::Error` is only usable at visibility `pub(self)`
[INFO] [stdout]    --> ardeck/src/device.rs:100:1
[INFO] [stdout]     |
[INFO] [stdout] 100 | enum Error {
[INFO] [stdout]     | ^^^^^^^^^^
[INFO] [stdout]     = note: `#[warn(private_interfaces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `device::Error` is more private than the item `SessionEvent::Error::0`
[INFO] [stdout]    --> ardeck/src/device.rs:121:11
[INFO] [stdout]     |
[INFO] [stdout] 121 |     Error(Error),
[INFO] [stdout]     |           ^^^^^ field `SessionEvent::Error::0` is reachable at visibility `pub`
[INFO] [stdout]     |
[INFO] [stdout] note: but type `device::Error` is only usable at visibility `pub(self)`
[INFO] [stdout]    --> ardeck/src/device.rs:100:1
[INFO] [stdout]     |
[INFO] [stdout] 100 | enum Error {
[INFO] [stdout]     | ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `DeviceInfoList` is never used
[INFO] [stdout]   --> ardeck/src/device.rs:66:7
[INFO] [stdout]    |
[INFO] [stdout] 66 | trait DeviceInfoList {
[INFO] [stdout]    |       ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `InitializationError` and `TimeOut` are never constructed
[INFO] [stdout]   --> ardeck/src/device.rs:86:5
[INFO] [stdout]    |
[INFO] [stdout] 85 | enum SessionErrorKind {
[INFO] [stdout]    |      ---------------- variants in this enum
[INFO] [stdout] 86 |     InitializationError,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 87 |     TimeOut,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `SessionErrorKind` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Session` is never constructed
[INFO] [stdout]    --> ardeck/src/device.rs:102:5
[INFO] [stdout]     |
[INFO] [stdout] 100 | enum Error {
[INFO] [stdout]     |      ----- variant in this enum
[INFO] [stdout] 101 |     #[error("Session error: `{0}`")]
[INFO] [stdout] 102 |     Session(SessionErrorKind),
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Error` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `state` is never read
[INFO] [stdout]    --> ardeck/src/device.rs:176:5
[INFO] [stdout]     |
[INFO] [stdout] 171 | pub struct Session {
[INFO] [stdout]     |            ------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 176 |     state: SessionEvent,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `dec_cobs` is never used
[INFO] [stdout]   --> ardeck/src/device/decode.rs:22:4
[INFO] [stdout]    |
[INFO] [stdout] 22 | fn dec_cobs(cobs_bytes: impl AsRef<[u8]>) -> Option<Vec<u8>> {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: cannot test inner items
[INFO] [stdout]   --> ardeck_derive/tests/test.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 |     #[test]
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unnameable_test_items)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MyConfig` is never constructed
[INFO] [stdout]  --> ardeck_derive/tests/test.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | struct MyConfig {
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `store_builder` is never used
[INFO] [stdout]   --> ardeck_derive/tests/test.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 31 |     fn store_builder() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.16s
[INFO] running `Command { std: "docker" "inspect" "18362268a667b1178f8a09e4d869f05eeee8e6f6446d68d1be2ba35d0b4bc040", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18362268a667b1178f8a09e4d869f05eeee8e6f6446d68d1be2ba35d0b4bc040", kill_on_drop: false }`
[INFO] [stdout] 18362268a667b1178f8a09e4d869f05eeee8e6f6446d68d1be2ba35d0b4bc040
