[INFO] fetching crate rcc_signer 0.1.1...
[INFO] checking rcc_signer-0.1.1 against try#a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d for pr-145342-1
[INFO] extracting crate rcc_signer 0.1.1 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate rcc_signer 0.1.1
[INFO] finished tweaking crates.io crate rcc_signer 0.1.1
[INFO] tweaked toml for crates.io crate rcc_signer 0.1.1 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rcc_signer 0.1.1 on toolchain a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 63 packages to latest compatible versions
[INFO] [stderr]       Adding bs58 v0.4.0 (available: v0.5.1)
[INFO] [stderr]       Adding indexmap v1.9.3 (available: v2.11.0)
[INFO] [stderr]       Adding k256 v0.11.6 (available: v0.13.4)
[INFO] [stderr]       Adding thiserror v1.0.69 (available: v2.0.16)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 836ed3e9e88067ccb8c0acda393ae0e595adb982bbc3d3da7f60f09865057b24
[INFO] running `Command { std: "docker" "start" "-a" "836ed3e9e88067ccb8c0acda393ae0e595adb982bbc3d3da7f60f09865057b24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "836ed3e9e88067ccb8c0acda393ae0e595adb982bbc3d3da7f60f09865057b24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "836ed3e9e88067ccb8c0acda393ae0e595adb982bbc3d3da7f60f09865057b24", kill_on_drop: false }`
[INFO] [stdout] 836ed3e9e88067ccb8c0acda393ae0e595adb982bbc3d3da7f60f09865057b24
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "RUSTDOCFLAGS=--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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e2c8fb0de5bbafbed4f1bb94d23210aa64b0f435fff91f27bd1a73d5d36e15e0
[INFO] running `Command { std: "docker" "start" "-a" "e2c8fb0de5bbafbed4f1bb94d23210aa64b0f435fff91f27bd1a73d5d36e15e0", kill_on_drop: false }`
[INFO] [stderr]     Checking base64ct v1.8.0
[INFO] [stderr]     Checking der v0.6.1
[INFO] [stderr]    Compiling libudev-sys v0.1.4
[INFO] [stderr]     Checking nix v0.26.4
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]     Checking crypto-bigint v0.4.9
[INFO] [stderr]     Checking ff v0.12.1
[INFO] [stderr]     Checking unescaper v0.1.6
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking group v0.12.1
[INFO] [stderr]     Checking hmac v0.12.1
[INFO] [stderr]     Checking signature v1.6.4
[INFO] [stderr]     Checking sha3 v0.10.8
[INFO] [stderr]     Checking sha2 v0.10.9
[INFO] [stderr]     Checking libudev v0.3.0
[INFO] [stderr]     Checking rfc6979 v0.3.1
[INFO] [stderr]     Checking spki v0.6.0
[INFO] [stderr]     Checking pkcs8 v0.9.0
[INFO] [stderr]     Checking serialport v4.7.3
[INFO] [stderr]     Checking sec1 v0.3.0
[INFO] [stderr]     Checking elliptic-curve v0.12.3
[INFO] [stderr]     Checking ecdsa v0.14.8
[INFO] [stderr]     Checking k256 v0.11.6
[INFO] [stderr]     Checking rcc_signer v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `TryInto`
[INFO] [stdout]  --> src/keymaster/se/tvl.rs:3:29
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::convert::{TryFrom, TryInto};
[INFO] [stdout]   |                             ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `TryInto`
[INFO] [stdout]  --> src/keymaster/se/tvl.rs:3:29
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::convert::{TryFrom, TryInto};
[INFO] [stdout]   |                             ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `params`
[INFO] [stdout]   --> src/keymaster/se/command.rs:27:14
[INFO] [stdout]    |
[INFO] [stdout] 27 |     fn build(params:Option<CommandParams>) -> Option<Command> {
[INFO] [stdout]    |              ^^^^^^ help: if this is intentional, prefix it with an underscore: `_params`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `params`
[INFO] [stdout]   --> src/keymaster/se/command.rs:39:14
[INFO] [stdout]    |
[INFO] [stdout] 39 |     fn build(params:Option<CommandParams>) -> Option<Command> {
[INFO] [stdout]    |              ^^^^^^ help: if this is intentional, prefix it with an underscore: `_params`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `id`
[INFO] [stdout]   --> src/keymaster/se/command.rs:81:13
[INFO] [stdout]    |
[INFO] [stdout] 81 |         let id = params.wallet_id?;
[INFO] [stdout]    |             ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `curve`
[INFO] [stdout]   --> src/keymaster/se/command.rs:84:13
[INFO] [stdout]    |
[INFO] [stdout] 84 |         let curve = params.curve?;
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_curve`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `params`
[INFO] [stdout]    --> src/keymaster/se/command.rs:125:14
[INFO] [stdout]     |
[INFO] [stdout] 125 |     fn build(params:Option<CommandParams>) -> Option<Command> {
[INFO] [stdout]     |              ^^^^^^ help: if this is intentional, prefix it with an underscore: `_params`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/keymaster/se/serial_manager.rs:28:23
[INFO] [stdout]    |
[INFO] [stdout] 28 |             .map_err(|e| KSError::SerialManagerError("Fail open port".to_string()))?;
[INFO] [stdout]    |                       ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/keymaster/se/serial_manager.rs:32:23
[INFO] [stdout]    |
[INFO] [stdout] 32 |             .map_err(|e| KSError::SerialManagerError("Fail to clone port".to_string()))?;
[INFO] [stdout]    |                       ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `params`
[INFO] [stdout]   --> src/keymaster/se/command.rs:27:14
[INFO] [stdout]    |
[INFO] [stdout] 27 |     fn build(params:Option<CommandParams>) -> Option<Command> {
[INFO] [stdout]    |              ^^^^^^ help: if this is intentional, prefix it with an underscore: `_params`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `params`
[INFO] [stdout]   --> src/keymaster/se/command.rs:39:14
[INFO] [stdout]    |
[INFO] [stdout] 39 |     fn build(params:Option<CommandParams>) -> Option<Command> {
[INFO] [stdout]    |              ^^^^^^ help: if this is intentional, prefix it with an underscore: `_params`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `id`
[INFO] [stdout]   --> src/keymaster/se/command.rs:81:13
[INFO] [stdout]    |
[INFO] [stdout] 81 |         let id = params.wallet_id?;
[INFO] [stdout]    |             ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `curve`
[INFO] [stdout]   --> src/keymaster/se/command.rs:84:13
[INFO] [stdout]    |
[INFO] [stdout] 84 |         let curve = params.curve?;
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_curve`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `params`
[INFO] [stdout]    --> src/keymaster/se/command.rs:125:14
[INFO] [stdout]     |
[INFO] [stdout] 125 |     fn build(params:Option<CommandParams>) -> Option<Command> {
[INFO] [stdout]     |              ^^^^^^ help: if this is intentional, prefix it with an underscore: `_params`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/keymaster/se/tvl.rs:178:13
[INFO] [stdout]     |
[INFO] [stdout] 178 |         let mut data: Vec<u8> = vec![0xff, 0xee, 0xcc, 0x00, 0xff, 0x11, 0x0c];
[INFO] [stdout]     |             ----^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/keymaster/se/serial_manager.rs:28:23
[INFO] [stdout]    |
[INFO] [stdout] 28 |             .map_err(|e| KSError::SerialManagerError("Fail open port".to_string()))?;
[INFO] [stdout]    |                       ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/keymaster/se/serial_manager.rs:32:23
[INFO] [stdout]    |
[INFO] [stdout] 32 |             .map_err(|e| KSError::SerialManagerError("Fail to clone port".to_string()))?;
[INFO] [stdout]    |                       ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `length`
[INFO] [stdout]    --> src/keymaster/se/mod.rs:137:32
[INFO] [stdout]     |
[INFO] [stdout] 137 |     fn generate_entropy(&self, length: super::EntropyLength) -> Result<Vec<u8>, KSError> {
[INFO] [stdout]     |                                ^^^^^^ help: if this is intentional, prefix it with an underscore: `_length`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `menomic`
[INFO] [stdout]    --> src/keymaster/se/mod.rs:145:29
[INFO] [stdout]     |
[INFO] [stdout] 145 |     fn write_menomic(&self, menomic: String, password: String) -> Result<String, KSError> {
[INFO] [stdout]     |                             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_menomic`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `password`
[INFO] [stdout]    --> src/keymaster/se/mod.rs:145:46
[INFO] [stdout]     |
[INFO] [stdout] 145 |     fn write_menomic(&self, menomic: String, password: String) -> Result<String, KSError> {
[INFO] [stdout]     |                                              ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_password`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `length`
[INFO] [stdout]   --> src/keymaster/local.rs:10:32
[INFO] [stdout]    |
[INFO] [stdout] 10 |     fn generate_entropy(&self, length: super::EntropyLength) -> Result<Vec<u8>, KSError> {
[INFO] [stdout]    |                                ^^^^^^ help: if this is intentional, prefix it with an underscore: `_length`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `menomic`
[INFO] [stdout]   --> src/keymaster/local.rs:14:29
[INFO] [stdout]    |
[INFO] [stdout] 14 |     fn write_menomic(&self, menomic: String, password: String) -> Result<String, KSError> {
[INFO] [stdout]    |                             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_menomic`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `length`
[INFO] [stdout]    --> src/keymaster/se/mod.rs:137:32
[INFO] [stdout]     |
[INFO] [stdout] 137 |     fn generate_entropy(&self, length: super::EntropyLength) -> Result<Vec<u8>, KSError> {
[INFO] [stdout]     |                                ^^^^^^ help: if this is intentional, prefix it with an underscore: `_length`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `password`
[INFO] [stdout]   --> src/keymaster/local.rs:14:46
[INFO] [stdout]    |
[INFO] [stdout] 14 |     fn write_menomic(&self, menomic: String, password: String) -> Result<String, KSError> {
[INFO] [stdout]    |                                              ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_password`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `menomic`
[INFO] [stdout]    --> src/keymaster/se/mod.rs:145:29
[INFO] [stdout]     |
[INFO] [stdout] 145 |     fn write_menomic(&self, menomic: String, password: String) -> Result<String, KSError> {
[INFO] [stdout]     |                             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_menomic`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `password`
[INFO] [stdout]    --> src/keymaster/se/mod.rs:145:46
[INFO] [stdout]     |
[INFO] [stdout] 145 |     fn write_menomic(&self, menomic: String, password: String) -> Result<String, KSError> {
[INFO] [stdout]     |                                              ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_password`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `curve_tag`
[INFO] [stdout]   --> src/keymaster/local.rs:26:13
[INFO] [stdout]    |
[INFO] [stdout] 26 |         let curve_tag = match algo {
[INFO] [stdout]    |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_curve_tag`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `menomic_id`
[INFO] [stdout]   --> src/keymaster/local.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 |         menomic_id: u8,
[INFO] [stdout]    |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_menomic_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `password`
[INFO] [stdout]   --> src/keymaster/local.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 21 |         password: String,
[INFO] [stdout]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_password`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `derivation_path`
[INFO] [stdout]   --> src/keymaster/local.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 24 |         derivation_path: String,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_derivation_path`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `length`
[INFO] [stdout]   --> src/keymaster/local.rs:10:32
[INFO] [stdout]    |
[INFO] [stdout] 10 |     fn generate_entropy(&self, length: super::EntropyLength) -> Result<Vec<u8>, KSError> {
[INFO] [stdout]    |                                ^^^^^^ help: if this is intentional, prefix it with an underscore: `_length`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `menomic`
[INFO] [stdout]   --> src/keymaster/local.rs:14:29
[INFO] [stdout]    |
[INFO] [stdout] 14 |     fn write_menomic(&self, menomic: String, password: String) -> Result<String, KSError> {
[INFO] [stdout]    |                             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_menomic`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `password`
[INFO] [stdout]   --> src/keymaster/local.rs:14:46
[INFO] [stdout]    |
[INFO] [stdout] 14 |     fn write_menomic(&self, menomic: String, password: String) -> Result<String, KSError> {
[INFO] [stdout]    |                                              ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_password`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `curve_tag`
[INFO] [stdout]   --> src/keymaster/local.rs:26:13
[INFO] [stdout]    |
[INFO] [stdout] 26 |         let curve_tag = match algo {
[INFO] [stdout]    |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_curve_tag`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `menomic_id`
[INFO] [stdout]   --> src/keymaster/local.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 |         menomic_id: u8,
[INFO] [stdout]    |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_menomic_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `password`
[INFO] [stdout]   --> src/keymaster/local.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 21 |         password: String,
[INFO] [stdout]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_password`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `derivation_path`
[INFO] [stdout]   --> src/keymaster/local.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 24 |         derivation_path: String,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_derivation_path`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new_with_mini` is never used
[INFO] [stdout]   --> src/lib.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl Signer {
[INFO] [stdout]    | ----------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 19 |     fn new_with_mini() -> Self {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `EntropyLength` is never used
[INFO] [stdout]  --> src/keymaster/mod.rs:7:10
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub enum EntropyLength {
[INFO] [stdout]   |          ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `generate_entropy`, `write_menomic`, and `get_version` are never used
[INFO] [stdout]   --> src/keymaster/mod.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub trait KeyMaster {
[INFO] [stdout]    |           --------- methods in this trait
[INFO] [stdout] 21 |     fn generate_entropy(&self, length: EntropyLength) -> Result<Vec<u8>, KSError>;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 22 |
[INFO] [stdout] 23 |     fn write_menomic(&self, menomic: String, password: String) -> Result<String, KSError>;
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 34 |     fn get_version(&self) -> Result<Vec<u8>, KSError>;
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `version` is never read
[INFO] [stdout]   --> src/keymaster/se/mod.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub struct SecureElement {
[INFO] [stdout]    |            ------------- field in this struct
[INFO] [stdout] 29 |     version: String,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `test_sign`, `generate_token`, and `clear_token` are never used
[INFO] [stdout]    --> src/keymaster/se/mod.rs:89:8
[INFO] [stdout]     |
[INFO] [stdout]  33 | impl SecureElement {
[INFO] [stdout]     | ------------------ methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout]  89 |     fn test_sign(
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 113 |     pub(crate) fn generate_token(&self, password: String) -> Result<Vec<u8>, KSError> {
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 127 |     pub(crate) fn clear_token(&self) -> Result<Vec<u8>, KSError> {
[INFO] [stdout]     |                   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `password` and `hash` are never read
[INFO] [stdout]   --> src/keymaster/se/command.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout]  9 | pub struct CommandParams {
[INFO] [stdout]    |            ------------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 13 |     pub password: Option<Vec<u8>>,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 14 |     pub curve: Option<u8>,
[INFO] [stdout] 15 |     pub hash: Option<[u8;128]>
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `GetFirmwareStatusCommand` is never constructed
[INFO] [stdout]   --> src/keymaster/se/command.rs:23:19
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub(crate) struct GetFirmwareStatusCommand;
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `GenerateEntropyCommand` is never constructed
[INFO] [stdout]   --> src/keymaster/se/command.rs:35:12
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub struct GenerateEntropyCommand;
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SignTxCommand` is never constructed
[INFO] [stdout]   --> src/keymaster/se/command.rs:75:12
[INFO] [stdout]    |
[INFO] [stdout] 75 | pub struct SignTxCommand;
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `GenerateTokenCommand` is never constructed
[INFO] [stdout]    --> src/keymaster/se/command.rs:103:12
[INFO] [stdout]     |
[INFO] [stdout] 103 | pub struct GenerateTokenCommand;
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ClearTokenCommand` is never constructed
[INFO] [stdout]    --> src/keymaster/se/command.rs:121:12
[INFO] [stdout]     |
[INFO] [stdout] 121 | pub struct ClearTokenCommand;
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `build_packet` is never used
[INFO] [stdout]    --> src/keymaster/se/command.rs:133:4
[INFO] [stdout]     |
[INFO] [stdout] 133 | fn build_packet(tag: u16) -> Packet {
[INFO] [stdout]     |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `GET_FIRMWARE_STATUS_TAG` is never used
[INFO] [stdout]  --> src/keymaster/se/tags.rs:5:15
[INFO] [stdout]   |
[INFO] [stdout] 5 |     pub const GET_FIRMWARE_STATUS_TAG: u16 = 0x0102;
[INFO] [stdout]   |               ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `GET_RANDOM_ENTROPY_TAG` is never used
[INFO] [stdout]  --> src/keymaster/se/tags.rs:6:15
[INFO] [stdout]   |
[INFO] [stdout] 6 |     pub const GET_RANDOM_ENTROPY_TAG: u16 = 0x0301;
[INFO] [stdout]   |               ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ENTROPY_TYPE_TAG` is never used
[INFO] [stdout]  --> src/keymaster/se/tags.rs:7:15
[INFO] [stdout]   |
[INFO] [stdout] 7 |     pub const ENTROPY_TYPE_TAG: u16 = 0x0201;
[INFO] [stdout]   |               ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ENTROPY_CHECKSUM_TAG` is never used
[INFO] [stdout]  --> src/keymaster/se/tags.rs:8:15
[INFO] [stdout]   |
[INFO] [stdout] 8 |     pub const ENTROPY_CHECKSUM_TAG: u16 = 0x030b;
[INFO] [stdout]   |               ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `CLEAR_TOKEN_TAG` is never used
[INFO] [stdout]   --> src/keymaster/se/tags.rs:11:15
[INFO] [stdout]    |
[INFO] [stdout] 11 |     pub const CLEAR_TOKEN_TAG:u16 = 0x0908;
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SIGN_TAG` is never used
[INFO] [stdout]   --> src/keymaster/se/tags.rs:12:15
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub const SIGN_TAG:u16 = 0x0307;
[INFO] [stdout]    |               ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NEED_TOKEN_TAG` is never used
[INFO] [stdout]   --> src/keymaster/se/tags.rs:18:15
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub const NEED_TOKEN_TAG: u16= 0x0405;
[INFO] [stdout]    |               ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `TX_HASH_TAG` is never used
[INFO] [stdout]   --> src/keymaster/se/tags.rs:19:15
[INFO] [stdout]    |
[INFO] [stdout] 19 |     pub const TX_HASH_TAG: u16= 0x0307;
[INFO] [stdout]    |               ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `VERIFY_USER_PASSWORD` is never used
[INFO] [stdout]   --> src/keymaster/se/tags.rs:22:15
[INFO] [stdout]    |
[INFO] [stdout] 22 |     pub const VERIFY_USER_PASSWORD:u16 = 0x0903;
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `CURRENT_PASSWORD` is never used
[INFO] [stdout]   --> src/keymaster/se/tags.rs:23:15
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub const CURRENT_PASSWORD:u16 = 0x0402;
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `FIRMWARE_APP_VERSION` is never used
[INFO] [stdout]   --> src/keymaster/se/tags.rs:28:15
[INFO] [stdout]    |
[INFO] [stdout] 28 |     pub const FIRMWARE_APP_VERSION: u16 = 0x0106;
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ENTROPY` is never used
[INFO] [stdout]   --> src/keymaster/se/tags.rs:29:15
[INFO] [stdout]    |
[INFO] [stdout] 29 |     pub const ENTROPY: u16 = 0x0202;
[INFO] [stdout]    |               ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `EXT_KET` is never used
[INFO] [stdout]   --> src/keymaster/se/tags.rs:30:15
[INFO] [stdout]    |
[INFO] [stdout] 30 |     pub const EXT_KET: u16 = 0x020a;
[INFO] [stdout]    |               ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `KEY` is never used
[INFO] [stdout]   --> src/keymaster/se/tags.rs:32:15
[INFO] [stdout]    |
[INFO] [stdout] 32 |     pub const KEY: u16 = 0x0302;
[INFO] [stdout]    |               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `AUTH_TOKEN` is never used
[INFO] [stdout]   --> src/keymaster/se/tags.rs:33:15
[INFO] [stdout]    |
[INFO] [stdout] 33 |     pub const AUTH_TOKEN: u16 = 0x0404;
[INFO] [stdout]    |               ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `lrc` is never read
[INFO] [stdout]   --> src/keymaster/se/tvl.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout]  7 | pub struct Packet {
[INFO] [stdout]    |            ------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 13 |     pub lrc: u8,
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Packet` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Mini` is never constructed
[INFO] [stdout]  --> src/keymaster/local.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct Mini;
[INFO] [stdout]   |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `EntropyLength` is never used
[INFO] [stdout]  --> src/keymaster/mod.rs:7:10
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub enum EntropyLength {
[INFO] [stdout]   |          ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `generate_entropy`, `write_menomic`, and `get_version` are never used
[INFO] [stdout]   --> src/keymaster/mod.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub trait KeyMaster {
[INFO] [stdout]    |           --------- methods in this trait
[INFO] [stdout] 21 |     fn generate_entropy(&self, length: EntropyLength) -> Result<Vec<u8>, KSError>;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 22 |
[INFO] [stdout] 23 |     fn write_menomic(&self, menomic: String, password: String) -> Result<String, KSError>;
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 34 |     fn get_version(&self) -> Result<Vec<u8>, KSError>;
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `version` is never read
[INFO] [stdout]   --> src/keymaster/se/mod.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub struct SecureElement {
[INFO] [stdout]    |            ------------- field in this struct
[INFO] [stdout] 29 |     version: String,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `test_sign`, `generate_token`, and `clear_token` are never used
[INFO] [stdout]    --> src/keymaster/se/mod.rs:89:8
[INFO] [stdout]     |
[INFO] [stdout]  33 | impl SecureElement {
[INFO] [stdout]     | ------------------ methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout]  89 |     fn test_sign(
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 113 |     pub(crate) fn generate_token(&self, password: String) -> Result<Vec<u8>, KSError> {
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 127 |     pub(crate) fn clear_token(&self) -> Result<Vec<u8>, KSError> {
[INFO] [stdout]     |                   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `password` and `hash` are never read
[INFO] [stdout]   --> src/keymaster/se/command.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout]  9 | pub struct CommandParams {
[INFO] [stdout]    |            ------------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 13 |     pub password: Option<Vec<u8>>,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 14 |     pub curve: Option<u8>,
[INFO] [stdout] 15 |     pub hash: Option<[u8;128]>
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SignTxCommand` is never constructed
[INFO] [stdout]   --> src/keymaster/se/command.rs:75:12
[INFO] [stdout]    |
[INFO] [stdout] 75 | pub struct SignTxCommand;
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `GenerateTokenCommand` is never constructed
[INFO] [stdout]    --> src/keymaster/se/command.rs:103:12
[INFO] [stdout]     |
[INFO] [stdout] 103 | pub struct GenerateTokenCommand;
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ClearTokenCommand` is never constructed
[INFO] [stdout]    --> src/keymaster/se/command.rs:121:12
[INFO] [stdout]     |
[INFO] [stdout] 121 | pub struct ClearTokenCommand;
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `build_packet` is never used
[INFO] [stdout]    --> src/keymaster/se/command.rs:133:4
[INFO] [stdout]     |
[INFO] [stdout] 133 | fn build_packet(tag: u16) -> Packet {
[INFO] [stdout]     |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `CLEAR_TOKEN_TAG` is never used
[INFO] [stdout]   --> src/keymaster/se/tags.rs:11:15
[INFO] [stdout]    |
[INFO] [stdout] 11 |     pub const CLEAR_TOKEN_TAG:u16 = 0x0908;
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SIGN_TAG` is never used
[INFO] [stdout]   --> src/keymaster/se/tags.rs:12:15
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub const SIGN_TAG:u16 = 0x0307;
[INFO] [stdout]    |               ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NEED_TOKEN_TAG` is never used
[INFO] [stdout]   --> src/keymaster/se/tags.rs:18:15
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub const NEED_TOKEN_TAG: u16= 0x0405;
[INFO] [stdout]    |               ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `TX_HASH_TAG` is never used
[INFO] [stdout]   --> src/keymaster/se/tags.rs:19:15
[INFO] [stdout]    |
[INFO] [stdout] 19 |     pub const TX_HASH_TAG: u16= 0x0307;
[INFO] [stdout]    |               ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `VERIFY_USER_PASSWORD` is never used
[INFO] [stdout]   --> src/keymaster/se/tags.rs:22:15
[INFO] [stdout]    |
[INFO] [stdout] 22 |     pub const VERIFY_USER_PASSWORD:u16 = 0x0903;
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `CURRENT_PASSWORD` is never used
[INFO] [stdout]   --> src/keymaster/se/tags.rs:23:15
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub const CURRENT_PASSWORD:u16 = 0x0402;
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `FIRMWARE_APP_VERSION` is never used
[INFO] [stdout]   --> src/keymaster/se/tags.rs:28:15
[INFO] [stdout]    |
[INFO] [stdout] 28 |     pub const FIRMWARE_APP_VERSION: u16 = 0x0106;
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ENTROPY` is never used
[INFO] [stdout]   --> src/keymaster/se/tags.rs:29:15
[INFO] [stdout]    |
[INFO] [stdout] 29 |     pub const ENTROPY: u16 = 0x0202;
[INFO] [stdout]    |               ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `EXT_KET` is never used
[INFO] [stdout]   --> src/keymaster/se/tags.rs:30:15
[INFO] [stdout]    |
[INFO] [stdout] 30 |     pub const EXT_KET: u16 = 0x020a;
[INFO] [stdout]    |               ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `KEY` is never used
[INFO] [stdout]   --> src/keymaster/se/tags.rs:32:15
[INFO] [stdout]    |
[INFO] [stdout] 32 |     pub const KEY: u16 = 0x0302;
[INFO] [stdout]    |               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `AUTH_TOKEN` is never used
[INFO] [stdout]   --> src/keymaster/se/tags.rs:33:15
[INFO] [stdout]    |
[INFO] [stdout] 33 |     pub const AUTH_TOKEN: u16 = 0x0404;
[INFO] [stdout]    |               ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `lrc` is never read
[INFO] [stdout]   --> src/keymaster/se/tvl.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout]  7 | pub struct Packet {
[INFO] [stdout]    |            ------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 13 |     pub lrc: u8,
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Packet` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/keymaster/se/serial_manager.rs:62:21
[INFO] [stdout]    |
[INFO] [stdout] 62 |                     port.clear(serialport::ClearBuffer::All);
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 62 |                     let _ = port.clear(serialport::ClearBuffer::All);
[INFO] [stdout]    |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/keymaster/se/serial_manager.rs:62:21
[INFO] [stdout]    |
[INFO] [stdout] 62 |                     port.clear(serialport::ClearBuffer::All);
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 62 |                     let _ = port.clear(serialport::ClearBuffer::All);
[INFO] [stdout]    |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.31s
[INFO] running `Command { std: "docker" "inspect" "e2c8fb0de5bbafbed4f1bb94d23210aa64b0f435fff91f27bd1a73d5d36e15e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e2c8fb0de5bbafbed4f1bb94d23210aa64b0f435fff91f27bd1a73d5d36e15e0", kill_on_drop: false }`
[INFO] [stdout] e2c8fb0de5bbafbed4f1bb94d23210aa64b0f435fff91f27bd1a73d5d36e15e0