[INFO] fetching crate voltage_modbus 0.3.1...
[INFO] building voltage_modbus-0.3.1 against master#ad85bc524b1ad696e42061ad8338d382dffbdbe5 for pr-146237-1
[INFO] extracting crate voltage_modbus 0.3.1 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate voltage_modbus 0.3.1
[INFO] finished tweaking crates.io crate voltage_modbus 0.3.1
[INFO] tweaked toml for crates.io crate voltage_modbus 0.3.1 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate voltage_modbus 0.3.1 on toolchain ad85bc524b1ad696e42061ad8338d382dffbdbe5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate voltage_modbus 0.3.1 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" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tokio-serial v5.4.5
[INFO] [stderr]   Downloaded mio-serial v5.0.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b5f701952b23ac019f1c5af433ff0a1c9487480736164dc392ef2f7df51c29f3
[INFO] running `Command { std: "docker" "start" "-a" "b5f701952b23ac019f1c5af433ff0a1c9487480736164dc392ef2f7df51c29f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b5f701952b23ac019f1c5af433ff0a1c9487480736164dc392ef2f7df51c29f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b5f701952b23ac019f1c5af433ff0a1c9487480736164dc392ef2f7df51c29f3", kill_on_drop: false }`
[INFO] [stdout] b5f701952b23ac019f1c5af433ff0a1c9487480736164dc392ef2f7df51c29f3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4a7be28178cf133854c913996354254e64317cb000705eda67084ab782e1196a
[INFO] running `Command { std: "docker" "start" "-a" "4a7be28178cf133854c913996354254e64317cb000705eda67084ab782e1196a", kill_on_drop: false }`
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[INFO] [stderr]    Compiling voltage_modbus v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::fmt`
[INFO] [stdout]    --> src/error.rs:146:5
[INFO] [stdout]     |
[INFO] [stdout] 146 | use std::fmt;
[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: `SlaveId`
[INFO] [stdout]    --> src/transport.rs:135:70
[INFO] [stdout]     |
[INFO] [stdout] 135 | use crate::protocol::{ModbusRequest, ModbusResponse, ModbusFunction, SlaveId};
[INFO] [stdout]     |                                                                      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::str::FromStr`
[INFO] [stdout]   --> src/client.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | use std::str::FromStr;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `async_trait::async_trait`
[INFO] [stdout]   --> src/client.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | use async_trait::async_trait;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ModbusFunction`, `ModbusRequest`, and `ModbusResponse`
[INFO] [stdout]   --> src/server.rs:18:23
[INFO] [stdout]    |
[INFO] [stdout] 18 | use crate::protocol::{ModbusRequest, ModbusResponse, ModbusFunction};
[INFO] [stdout]    |                       ^^^^^^^^^^^^^  ^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `debug`, `error`, `info`, and `warn`
[INFO] [stdout]  --> src/register_bank.rs:8:15
[INFO] [stdout]   |
[INFO] [stdout] 8 | use tracing::{debug, error, info, warn};
[INFO] [stdout]   |               ^^^^^  ^^^^^  ^^^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `error`
[INFO] [stdout]  --> src/utils.rs:7:30
[INFO] [stdout]   |
[INFO] [stdout] 7 | use log::{debug, info, warn, error};
[INFO] [stdout]   |                              ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated unit variant `error::ModbusError::InvalidDataValue`: Use InvalidData with message field
[INFO] [stdout]    --> src/client.rs:149:37
[INFO] [stdout]     |
[INFO] [stdout] 149 |             return Err(ModbusError::InvalidDataValue);
[INFO] [stdout]     |                                     ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated unit variant `error::ModbusError::InvalidDataValue`: Use InvalidData with message field
[INFO] [stdout]    --> src/client.rs:175:37
[INFO] [stdout]     |
[INFO] [stdout] 175 |             return Err(ModbusError::InvalidDataValue);
[INFO] [stdout]     |                                     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated unit variant `error::ModbusError::InvalidDataValue`: Use InvalidData with message field
[INFO] [stdout]    --> src/client.rs:201:37
[INFO] [stdout]     |
[INFO] [stdout] 201 |             return Err(ModbusError::InvalidDataValue);
[INFO] [stdout]     |                                     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated unit variant `error::ModbusError::InvalidDataValue`: Use InvalidData with message field
[INFO] [stdout]    --> src/client.rs:225:37
[INFO] [stdout]     |
[INFO] [stdout] 225 |             return Err(ModbusError::InvalidDataValue);
[INFO] [stdout]     |                                     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated unit variant `error::ModbusError::InvalidDataValue`: Use InvalidData with message field
[INFO] [stdout]    --> src/client.rs:278:37
[INFO] [stdout]     |
[INFO] [stdout] 278 |             return Err(ModbusError::InvalidDataValue);
[INFO] [stdout]     |                                     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated unit variant `error::ModbusError::InvalidDataValue`: Use InvalidData with message field
[INFO] [stdout]    --> src/client.rs:308:37
[INFO] [stdout]     |
[INFO] [stdout] 308 |             return Err(ModbusError::InvalidDataValue);
[INFO] [stdout]     |                                     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated unit variant `error::ModbusError::InvalidFrame`: Use Frame with message field
[INFO] [stdout]    --> src/server.rs:296:37
[INFO] [stdout]     |
[INFO] [stdout] 296 |             return Err(ModbusError::InvalidFrame);
[INFO] [stdout]     |                                     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated unit variant `error::ModbusError::InvalidFrame`: Use Frame with message field
[INFO] [stdout]    --> src/server.rs:315:37
[INFO] [stdout]     |
[INFO] [stdout] 315 |             return Err(ModbusError::InvalidFrame);
[INFO] [stdout]     |                                     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated unit variant `error::ModbusError::InvalidFrame`: Use Frame with message field
[INFO] [stdout]    --> src/server.rs:334:37
[INFO] [stdout]     |
[INFO] [stdout] 334 |             return Err(ModbusError::InvalidFrame);
[INFO] [stdout]     |                                     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated unit variant `error::ModbusError::InvalidFrame`: Use Frame with message field
[INFO] [stdout]    --> src/server.rs:352:37
[INFO] [stdout]     |
[INFO] [stdout] 352 |             return Err(ModbusError::InvalidFrame);
[INFO] [stdout]     |                                     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated unit variant `error::ModbusError::InvalidFrame`: Use Frame with message field
[INFO] [stdout]    --> src/server.rs:369:37
[INFO] [stdout]     |
[INFO] [stdout] 369 |             return Err(ModbusError::InvalidFrame);
[INFO] [stdout]     |                                     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated unit variant `error::ModbusError::InvalidFrame`: Use Frame with message field
[INFO] [stdout]    --> src/server.rs:377:37
[INFO] [stdout]     |
[INFO] [stdout] 377 |             return Err(ModbusError::InvalidFrame);
[INFO] [stdout]     |                                     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated unit variant `error::ModbusError::InvalidFrame`: Use Frame with message field
[INFO] [stdout]    --> src/server.rs:399:37
[INFO] [stdout]     |
[INFO] [stdout] 399 |             return Err(ModbusError::InvalidFrame);
[INFO] [stdout]     |                                     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated unit variant `error::ModbusError::InvalidFrame`: Use Frame with message field
[INFO] [stdout]    --> src/server.rs:407:37
[INFO] [stdout]     |
[INFO] [stdout] 407 |             return Err(ModbusError::InvalidFrame);
[INFO] [stdout]     |                                     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `last_byte_time` is assigned to, but never used
[INFO] [stdout]    --> src/transport.rs:878:17
[INFO] [stdout]     |
[INFO] [stdout] 878 |         let mut last_byte_time = tokio::time::Instant::now();
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_last_byte_time` instead
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `last_byte_time` is never read
[INFO] [stdout]    --> src/transport.rs:885:21
[INFO] [stdout]     |
[INFO] [stdout] 885 |                     last_byte_time = tokio::time::Instant::now();
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `create_rtu_error_response` is never used
[INFO] [stdout]    --> src/server.rs:665:8
[INFO] [stdout]     |
[INFO] [stdout] 589 | impl ModbusRtuServer {
[INFO] [stdout]     | -------------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 665 |     fn create_rtu_error_response(slave_id: u8, function_code: u8, exception_code: u8) -> ModbusResult<Vec<u8>> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `DEFAULT_COILS_SIZE` is never used
[INFO] [stdout]   --> src/register_bank.rs:12:7
[INFO] [stdout]    |
[INFO] [stdout] 12 | const DEFAULT_COILS_SIZE: usize = 10000;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `DEFAULT_DISCRETE_INPUTS_SIZE` is never used
[INFO] [stdout]   --> src/register_bank.rs:13:7
[INFO] [stdout]    |
[INFO] [stdout] 13 | const DEFAULT_DISCRETE_INPUTS_SIZE: usize = 10000;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `DEFAULT_HOLDING_REGISTERS_SIZE` is never used
[INFO] [stdout]   --> src/register_bank.rs:14:7
[INFO] [stdout]    |
[INFO] [stdout] 14 | const DEFAULT_HOLDING_REGISTERS_SIZE: usize = 10000;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `DEFAULT_INPUT_REGISTERS_SIZE` is never used
[INFO] [stdout]   --> src/register_bank.rs:15:7
[INFO] [stdout]    |
[INFO] [stdout] 15 | const DEFAULT_INPUT_REGISTERS_SIZE: usize = 10000;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sleep`
[INFO] [stdout]  --> src/bin/server_demo.rs:9:19
[INFO] [stdout]   |
[INFO] [stdout] 9 | use tokio::time::{sleep, interval};
[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: `RegisterBankStats`
[INFO] [stdout]   --> src/bin/server_demo.rs:14:25
[INFO] [stdout]    |
[INFO] [stdout] 14 |     ModbusRegisterBank, RegisterBankStats
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tokio::time::sleep`
[INFO] [stdout]   --> src/bin/rtu_simulator.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | use tokio::time::sleep;
[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: `transport::RtuTransport`
[INFO] [stdout]   --> src/bin/rtu_simulator.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     transport::RtuTransport,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ModbusResponse` and `TransportStats`
[INFO] [stdout]   --> src/bin/rtu_test.rs:14:48
[INFO] [stdout]    |
[INFO] [stdout] 14 |     transport::{RtuTransport, ModbusTransport, TransportStats},
[INFO] [stdout]    |                                                ^^^^^^^^^^^^^^
[INFO] [stdout] 15 |     protocol::{ModbusRequest, ModbusResponse, ModbusFunction, ModbusAddress, SlaveId},
[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: `futures::future::join_all`
[INFO] [stdout]   --> src/bin/performance_test.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use futures::future::join_all;
[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: `ModbusError`
[INFO] [stdout]   --> src/bin/ascii_test.rs:14:22
[INFO] [stdout]    |
[INFO] [stdout] 14 | use voltage_modbus::{ModbusError, ModbusResult};
[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: `timeout`
[INFO] [stdout]   --> src/bin/ascii_test.rs:17:26
[INFO] [stdout]    |
[INFO] [stdout] 17 | use tokio::time::{sleep, timeout};
[INFO] [stdout]    |                          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `debug`
[INFO] [stdout]   --> src/bin/ascii_test.rs:18:30
[INFO] [stdout]    |
[INFO] [stdout] 18 | use log::{info, warn, error, debug};
[INFO] [stdout]    |                              ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `address`
[INFO] [stdout]   --> src/bin/demo.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 26 |     let address: std::net::SocketAddr = server_address.parse()
[INFO] [stdout]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_address`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `client::ModbusClient`
[INFO] [stdout]   --> src/bin/rtu_test.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     client::ModbusClient,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `max_concurrent` is never read
[INFO] [stdout]   --> src/bin/advanced_test.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | struct TestConfig {
[INFO] [stdout]    |        ---------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 20 |     max_concurrent: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TestConfig` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ConnectionPool` is never constructed
[INFO] [stdout]   --> src/bin/advanced_test.rs:52:8
[INFO] [stdout]    |
[INFO] [stdout] 52 | struct ConnectionPool {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `execute_request` are never used
[INFO] [stdout]   --> src/bin/advanced_test.rs:60:14
[INFO] [stdout]    |
[INFO] [stdout] 59 | impl ConnectionPool {
[INFO] [stdout]    | ------------------- associated items in this implementation
[INFO] [stdout] 60 |     async fn new(address: std::net::SocketAddr, timeout: Duration, pool_size: usize) -> ModbusResult<Self> {
[INFO] [stdout]    |              ^^^
[INFO] [stdout] ...
[INFO] [stdout] 94 |     async fn execute_request(&mut self, request: &ModbusRequest) -> ModbusResult<(Vec<u8>, Duration)> {
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 35.06s
[INFO] running `Command { std: "docker" "inspect" "4a7be28178cf133854c913996354254e64317cb000705eda67084ab782e1196a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a7be28178cf133854c913996354254e64317cb000705eda67084ab782e1196a", kill_on_drop: false }`
[INFO] [stdout] 4a7be28178cf133854c913996354254e64317cb000705eda67084ab782e1196a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 56af7b79fc4d52f63ed4e5eb7b38ea5ec7ee1b8ca1d92d563b4ec154c03f8b0a
[INFO] running `Command { std: "docker" "start" "-a" "56af7b79fc4d52f63ed4e5eb7b38ea5ec7ee1b8ca1d92d563b4ec154c03f8b0a", kill_on_drop: false }`
[INFO] [stderr]    Compiling half v2.6.0
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling tokio v1.45.1
[INFO] [stderr]    Compiling clap_builder v4.5.39
[INFO] [stderr]    Compiling async-stream-impl v0.3.6
[INFO] [stderr]    Compiling rayon v1.10.0
[INFO] [stderr]    Compiling ciborium-ll v0.2.2
[INFO] [stderr]    Compiling async-stream v0.3.6
[INFO] [stderr]    Compiling clap v4.5.39
[INFO] [stderr]    Compiling serde_json v1.0.140
[INFO] [stderr]    Compiling serde_yaml v0.9.34+deprecated
[INFO] [stderr]    Compiling chrono v0.4.41
[INFO] [stderr]    Compiling ciborium v0.2.2
[INFO] [stderr]    Compiling futures-executor v0.3.31
[INFO] [stderr]    Compiling futures v0.3.31
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling criterion v0.5.1
[INFO] [stderr]    Compiling tokio-serial v5.4.5
[INFO] [stderr]    Compiling tokio-stream v0.1.17
[INFO] [stderr]    Compiling voltage_modbus v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::fmt`
[INFO] [stdout]    --> src/error.rs:146:5
[INFO] [stdout]     |
[INFO] [stdout] 146 | use std::fmt;
[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: `SlaveId`
[INFO] [stdout]    --> src/transport.rs:135:70
[INFO] [stdout]     |
[INFO] [stdout] 135 | use crate::protocol::{ModbusRequest, ModbusResponse, ModbusFunction, SlaveId};
[INFO] [stdout]     |                                                                      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::str::FromStr`
[INFO] [stdout]   --> src/client.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | use std::str::FromStr;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `async_trait::async_trait`
[INFO] [stdout]   --> src/client.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | use async_trait::async_trait;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ModbusFunction`, `ModbusRequest`, and `ModbusResponse`
[INFO] [stdout]   --> src/server.rs:18:23
[INFO] [stdout]    |
[INFO] [stdout] 18 | use crate::protocol::{ModbusRequest, ModbusResponse, ModbusFunction};
[INFO] [stdout]    |                       ^^^^^^^^^^^^^  ^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `debug`, `error`, `info`, and `warn`
[INFO] [stdout]  --> src/register_bank.rs:8:15
[INFO] [stdout]   |
[INFO] [stdout] 8 | use tracing::{debug, error, info, warn};
[INFO] [stdout]   |               ^^^^^  ^^^^^  ^^^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `error`
[INFO] [stdout]  --> src/utils.rs:7:30
[INFO] [stdout]   |
[INFO] [stdout] 7 | use log::{debug, info, warn, error};
[INFO] [stdout]   |                              ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated unit variant `error::ModbusError::InvalidDataValue`: Use InvalidData with message field
[INFO] [stdout]    --> src/client.rs:149:37
[INFO] [stdout]     |
[INFO] [stdout] 149 |             return Err(ModbusError::InvalidDataValue);
[INFO] [stdout]     |                                     ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated unit variant `error::ModbusError::InvalidDataValue`: Use InvalidData with message field
[INFO] [stdout]    --> src/client.rs:175:37
[INFO] [stdout]     |
[INFO] [stdout] 175 |             return Err(ModbusError::InvalidDataValue);
[INFO] [stdout]     |                                     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated unit variant `error::ModbusError::InvalidDataValue`: Use InvalidData with message field
[INFO] [stdout]    --> src/client.rs:201:37
[INFO] [stdout]     |
[INFO] [stdout] 201 |             return Err(ModbusError::InvalidDataValue);
[INFO] [stdout]     |                                     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated unit variant `error::ModbusError::InvalidDataValue`: Use InvalidData with message field
[INFO] [stdout]    --> src/client.rs:225:37
[INFO] [stdout]     |
[INFO] [stdout] 225 |             return Err(ModbusError::InvalidDataValue);
[INFO] [stdout]     |                                     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated unit variant `error::ModbusError::InvalidDataValue`: Use InvalidData with message field
[INFO] [stdout]    --> src/client.rs:278:37
[INFO] [stdout]     |
[INFO] [stdout] 278 |             return Err(ModbusError::InvalidDataValue);
[INFO] [stdout]     |                                     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated unit variant `error::ModbusError::InvalidDataValue`: Use InvalidData with message field
[INFO] [stdout]    --> src/client.rs:308:37
[INFO] [stdout]     |
[INFO] [stdout] 308 |             return Err(ModbusError::InvalidDataValue);
[INFO] [stdout]     |                                     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated unit variant `error::ModbusError::InvalidFrame`: Use Frame with message field
[INFO] [stdout]    --> src/server.rs:296:37
[INFO] [stdout]     |
[INFO] [stdout] 296 |             return Err(ModbusError::InvalidFrame);
[INFO] [stdout]     |                                     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated unit variant `error::ModbusError::InvalidFrame`: Use Frame with message field
[INFO] [stdout]    --> src/server.rs:315:37
[INFO] [stdout]     |
[INFO] [stdout] 315 |             return Err(ModbusError::InvalidFrame);
[INFO] [stdout]     |                                     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated unit variant `error::ModbusError::InvalidFrame`: Use Frame with message field
[INFO] [stdout]    --> src/server.rs:334:37
[INFO] [stdout]     |
[INFO] [stdout] 334 |             return Err(ModbusError::InvalidFrame);
[INFO] [stdout]     |                                     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated unit variant `error::ModbusError::InvalidFrame`: Use Frame with message field
[INFO] [stdout]    --> src/server.rs:352:37
[INFO] [stdout]     |
[INFO] [stdout] 352 |             return Err(ModbusError::InvalidFrame);
[INFO] [stdout]     |                                     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated unit variant `error::ModbusError::InvalidFrame`: Use Frame with message field
[INFO] [stdout]    --> src/server.rs:369:37
[INFO] [stdout]     |
[INFO] [stdout] 369 |             return Err(ModbusError::InvalidFrame);
[INFO] [stdout]     |                                     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated unit variant `error::ModbusError::InvalidFrame`: Use Frame with message field
[INFO] [stdout]    --> src/server.rs:377:37
[INFO] [stdout]     |
[INFO] [stdout] 377 |             return Err(ModbusError::InvalidFrame);
[INFO] [stdout]     |                                     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated unit variant `error::ModbusError::InvalidFrame`: Use Frame with message field
[INFO] [stdout]    --> src/server.rs:399:37
[INFO] [stdout]     |
[INFO] [stdout] 399 |             return Err(ModbusError::InvalidFrame);
[INFO] [stdout]     |                                     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated unit variant `error::ModbusError::InvalidFrame`: Use Frame with message field
[INFO] [stdout]    --> src/server.rs:407:37
[INFO] [stdout]     |
[INFO] [stdout] 407 |             return Err(ModbusError::InvalidFrame);
[INFO] [stdout]     |                                     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `last_byte_time` is assigned to, but never used
[INFO] [stdout]    --> src/transport.rs:878:17
[INFO] [stdout]     |
[INFO] [stdout] 878 |         let mut last_byte_time = tokio::time::Instant::now();
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_last_byte_time` instead
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `last_byte_time` is never read
[INFO] [stdout]    --> src/transport.rs:885:21
[INFO] [stdout]     |
[INFO] [stdout] 885 |                     last_byte_time = tokio::time::Instant::now();
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling tokio-test v0.4.4
[INFO] [stdout] warning: associated function `create_rtu_error_response` is never used
[INFO] [stdout]    --> src/server.rs:665:8
[INFO] [stdout]     |
[INFO] [stdout] 589 | impl ModbusRtuServer {
[INFO] [stdout]     | -------------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 665 |     fn create_rtu_error_response(slave_id: u8, function_code: u8, exception_code: u8) -> ModbusResult<Vec<u8>> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `DEFAULT_COILS_SIZE` is never used
[INFO] [stdout]   --> src/register_bank.rs:12:7
[INFO] [stdout]    |
[INFO] [stdout] 12 | const DEFAULT_COILS_SIZE: usize = 10000;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `DEFAULT_DISCRETE_INPUTS_SIZE` is never used
[INFO] [stdout]   --> src/register_bank.rs:13:7
[INFO] [stdout]    |
[INFO] [stdout] 13 | const DEFAULT_DISCRETE_INPUTS_SIZE: usize = 10000;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `DEFAULT_HOLDING_REGISTERS_SIZE` is never used
[INFO] [stdout]   --> src/register_bank.rs:14:7
[INFO] [stdout]    |
[INFO] [stdout] 14 | const DEFAULT_HOLDING_REGISTERS_SIZE: usize = 10000;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `DEFAULT_INPUT_REGISTERS_SIZE` is never used
[INFO] [stdout]   --> src/register_bank.rs:15:7
[INFO] [stdout]    |
[INFO] [stdout] 15 | const DEFAULT_INPUT_REGISTERS_SIZE: usize = 10000;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ModbusResponse` and `TransportStats`
[INFO] [stdout]   --> src/bin/rtu_test.rs:14:48
[INFO] [stdout]    |
[INFO] [stdout] 14 |     transport::{RtuTransport, ModbusTransport, TransportStats},
[INFO] [stdout]    |                                                ^^^^^^^^^^^^^^
[INFO] [stdout] 15 |     protocol::{ModbusRequest, ModbusResponse, ModbusFunction, ModbusAddress, SlaveId},
[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: `std::fmt`
[INFO] [stdout]    --> src/error.rs:146:5
[INFO] [stdout]     |
[INFO] [stdout] 146 | use std::fmt;
[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: `SlaveId`
[INFO] [stdout]    --> src/transport.rs:135:70
[INFO] [stdout]     |
[INFO] [stdout] 135 | use crate::protocol::{ModbusRequest, ModbusResponse, ModbusFunction, SlaveId};
[INFO] [stdout]     |                                                                      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::str::FromStr`
[INFO] [stdout]   --> src/client.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | use std::str::FromStr;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `async_trait::async_trait`
[INFO] [stdout]   --> src/client.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | use async_trait::async_trait;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ModbusFunction`, `ModbusRequest`, and `ModbusResponse`
[INFO] [stdout]   --> src/server.rs:18:23
[INFO] [stdout]    |
[INFO] [stdout] 18 | use crate::protocol::{ModbusRequest, ModbusResponse, ModbusFunction};
[INFO] [stdout]    |                       ^^^^^^^^^^^^^  ^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `debug`, `error`, `info`, and `warn`
[INFO] [stdout]  --> src/register_bank.rs:8:15
[INFO] [stdout]   |
[INFO] [stdout] 8 | use tracing::{debug, error, info, warn};
[INFO] [stdout]   |               ^^^^^  ^^^^^  ^^^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `error`
[INFO] [stdout]  --> src/utils.rs:7:30
[INFO] [stdout]   |
[INFO] [stdout] 7 | use log::{debug, info, warn, error};
[INFO] [stdout]   |                              ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated unit variant `error::ModbusError::InvalidDataValue`: Use InvalidData with message field
[INFO] [stdout]    --> src/client.rs:149:37
[INFO] [stdout]     |
[INFO] [stdout] 149 |             return Err(ModbusError::InvalidDataValue);
[INFO] [stdout]     |                                     ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated unit variant `error::ModbusError::InvalidDataValue`: Use InvalidData with message field
[INFO] [stdout]    --> src/client.rs:175:37
[INFO] [stdout]     |
[INFO] [stdout] 175 |             return Err(ModbusError::InvalidDataValue);
[INFO] [stdout]     |                                     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated unit variant `error::ModbusError::InvalidDataValue`: Use InvalidData with message field
[INFO] [stdout]    --> src/client.rs:201:37
[INFO] [stdout]     |
[INFO] [stdout] 201 |             return Err(ModbusError::InvalidDataValue);
[INFO] [stdout]     |                                     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated unit variant `error::ModbusError::InvalidDataValue`: Use InvalidData with message field
[INFO] [stdout]    --> src/client.rs:225:37
[INFO] [stdout]     |
[INFO] [stdout] 225 |             return Err(ModbusError::InvalidDataValue);
[INFO] [stdout]     |                                     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated unit variant `error::ModbusError::InvalidDataValue`: Use InvalidData with message field
[INFO] [stdout]    --> src/client.rs:278:37
[INFO] [stdout]     |
[INFO] [stdout] 278 |             return Err(ModbusError::InvalidDataValue);
[INFO] [stdout]     |                                     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated unit variant `error::ModbusError::InvalidDataValue`: Use InvalidData with message field
[INFO] [stdout]    --> src/client.rs:308:37
[INFO] [stdout]     |
[INFO] [stdout] 308 |             return Err(ModbusError::InvalidDataValue);
[INFO] [stdout]     |                                     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated unit variant `error::ModbusError::InvalidFrame`: Use Frame with message field
[INFO] [stdout]    --> src/server.rs:296:37
[INFO] [stdout]     |
[INFO] [stdout] 296 |             return Err(ModbusError::InvalidFrame);
[INFO] [stdout]     |                                     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated unit variant `error::ModbusError::InvalidFrame`: Use Frame with message field
[INFO] [stdout]    --> src/server.rs:315:37
[INFO] [stdout]     |
[INFO] [stdout] 315 |             return Err(ModbusError::InvalidFrame);
[INFO] [stdout]     |                                     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated unit variant `error::ModbusError::InvalidFrame`: Use Frame with message field
[INFO] [stdout]    --> src/server.rs:334:37
[INFO] [stdout]     |
[INFO] [stdout] 334 |             return Err(ModbusError::InvalidFrame);
[INFO] [stdout]     |                                     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated unit variant `error::ModbusError::InvalidFrame`: Use Frame with message field
[INFO] [stdout]    --> src/server.rs:352:37
[INFO] [stdout]     |
[INFO] [stdout] 352 |             return Err(ModbusError::InvalidFrame);
[INFO] [stdout]     |                                     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated unit variant `error::ModbusError::InvalidFrame`: Use Frame with message field
[INFO] [stdout]    --> src/server.rs:369:37
[INFO] [stdout]     |
[INFO] [stdout] 369 |             return Err(ModbusError::InvalidFrame);
[INFO] [stdout]     |                                     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated unit variant `error::ModbusError::InvalidFrame`: Use Frame with message field
[INFO] [stdout]    --> src/server.rs:377:37
[INFO] [stdout]     |
[INFO] [stdout] 377 |             return Err(ModbusError::InvalidFrame);
[INFO] [stdout]     |                                     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated unit variant `error::ModbusError::InvalidFrame`: Use Frame with message field
[INFO] [stdout]    --> src/server.rs:399:37
[INFO] [stdout]     |
[INFO] [stdout] 399 |             return Err(ModbusError::InvalidFrame);
[INFO] [stdout]     |                                     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated unit variant `error::ModbusError::InvalidFrame`: Use Frame with message field
[INFO] [stdout]    --> src/server.rs:407:37
[INFO] [stdout]     |
[INFO] [stdout] 407 |             return Err(ModbusError::InvalidFrame);
[INFO] [stdout]     |                                     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `address`
[INFO] [stdout]   --> src/bin/demo.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 26 |     let address: std::net::SocketAddr = server_address.parse()
[INFO] [stdout]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_address`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sleep`
[INFO] [stdout]  --> src/bin/server_demo.rs:9:19
[INFO] [stdout]   |
[INFO] [stdout] 9 | use tokio::time::{sleep, interval};
[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: `RegisterBankStats`
[INFO] [stdout]   --> src/bin/server_demo.rs:14:25
[INFO] [stdout]    |
[INFO] [stdout] 14 |     ModbusRegisterBank, RegisterBankStats
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tokio::time::sleep`
[INFO] [stdout]   --> src/bin/rtu_simulator.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | use tokio::time::sleep;
[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: `transport::RtuTransport`
[INFO] [stdout]   --> src/bin/rtu_simulator.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     transport::RtuTransport,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `last_byte_time` is assigned to, but never used
[INFO] [stdout]    --> src/transport.rs:878:17
[INFO] [stdout]     |
[INFO] [stdout] 878 |         let mut last_byte_time = tokio::time::Instant::now();
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_last_byte_time` instead
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `last_byte_time` is never read
[INFO] [stdout]    --> src/transport.rs:885:21
[INFO] [stdout]     |
[INFO] [stdout] 885 |                     last_byte_time = tokio::time::Instant::now();
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ModbusError`
[INFO] [stdout]   --> src/bin/ascii_test.rs:14:22
[INFO] [stdout]    |
[INFO] [stdout] 14 | use voltage_modbus::{ModbusError, ModbusResult};
[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: `timeout`
[INFO] [stdout]   --> src/bin/ascii_test.rs:17:26
[INFO] [stdout]    |
[INFO] [stdout] 17 | use tokio::time::{sleep, timeout};
[INFO] [stdout]    |                          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `debug`
[INFO] [stdout]   --> src/bin/ascii_test.rs:18:30
[INFO] [stdout]    |
[INFO] [stdout] 18 | use log::{info, warn, error, debug};
[INFO] [stdout]    |                              ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `client::ModbusClient`
[INFO] [stdout]   --> src/bin/rtu_test.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     client::ModbusClient,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `futures::future::join_all`
[INFO] [stdout]   --> src/bin/performance_test.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use futures::future::join_all;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `max_concurrent` is never read
[INFO] [stdout]   --> src/bin/advanced_test.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | struct TestConfig {
[INFO] [stdout]    |        ---------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 20 |     max_concurrent: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TestConfig` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ConnectionPool` is never constructed
[INFO] [stdout]   --> src/bin/advanced_test.rs:52:8
[INFO] [stdout]    |
[INFO] [stdout] 52 | struct ConnectionPool {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `execute_request` are never used
[INFO] [stdout]   --> src/bin/advanced_test.rs:60:14
[INFO] [stdout]    |
[INFO] [stdout] 59 | impl ConnectionPool {
[INFO] [stdout]    | ------------------- associated items in this implementation
[INFO] [stdout] 60 |     async fn new(address: std::net::SocketAddr, timeout: Duration, pool_size: usize) -> ModbusResult<Self> {
[INFO] [stdout]    |              ^^^
[INFO] [stdout] ...
[INFO] [stdout] 94 |     async fn execute_request(&mut self, request: &ModbusRequest) -> ModbusResult<(Vec<u8>, Duration)> {
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `DEFAULT_COILS_SIZE` is never used
[INFO] [stdout]   --> src/register_bank.rs:12:7
[INFO] [stdout]    |
[INFO] [stdout] 12 | const DEFAULT_COILS_SIZE: usize = 10000;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `DEFAULT_DISCRETE_INPUTS_SIZE` is never used
[INFO] [stdout]   --> src/register_bank.rs:13:7
[INFO] [stdout]    |
[INFO] [stdout] 13 | const DEFAULT_DISCRETE_INPUTS_SIZE: usize = 10000;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `DEFAULT_HOLDING_REGISTERS_SIZE` is never used
[INFO] [stdout]   --> src/register_bank.rs:14:7
[INFO] [stdout]    |
[INFO] [stdout] 14 | const DEFAULT_HOLDING_REGISTERS_SIZE: usize = 10000;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `DEFAULT_INPUT_REGISTERS_SIZE` is never used
[INFO] [stdout]   --> src/register_bank.rs:15:7
[INFO] [stdout]    |
[INFO] [stdout] 15 | const DEFAULT_INPUT_REGISTERS_SIZE: usize = 10000;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 22.15s
[INFO] running `Command { std: "docker" "inspect" "56af7b79fc4d52f63ed4e5eb7b38ea5ec7ee1b8ca1d92d563b4ec154c03f8b0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "56af7b79fc4d52f63ed4e5eb7b38ea5ec7ee1b8ca1d92d563b4ec154c03f8b0a", kill_on_drop: false }`
[INFO] [stdout] 56af7b79fc4d52f63ed4e5eb7b38ea5ec7ee1b8ca1d92d563b4ec154c03f8b0a
