[INFO] cloning repository https://github.com/wjorda/untitled
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wjorda/untitled" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwjorda%2Funtitled", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwjorda%2Funtitled'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4112f4e87bc79b58ac5f3d128d549a693977b4b8
[INFO] checking wjorda/untitled against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwjorda%2Funtitled" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/wjorda/untitled on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/wjorda/untitled
[INFO] finished tweaking git repo https://github.com/wjorda/untitled
[INFO] tweaked toml for git repo https://github.com/wjorda/untitled written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/wjorda/untitled 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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded simple_logger v2.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4c8e25482ad6c3c9e513aed4d1da5ca65829b00f3cf6dccc642bfd831b52e6b1
[INFO] running `Command { std: "docker" "start" "-a" "4c8e25482ad6c3c9e513aed4d1da5ca65829b00f3cf6dccc642bfd831b52e6b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4c8e25482ad6c3c9e513aed4d1da5ca65829b00f3cf6dccc642bfd831b52e6b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c8e25482ad6c3c9e513aed4d1da5ca65829b00f3cf6dccc642bfd831b52e6b1", kill_on_drop: false }`
[INFO] [stdout] 4c8e25482ad6c3c9e513aed4d1da5ca65829b00f3cf6dccc642bfd831b52e6b1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9d10c2947fe41867bfd0bfa7bc1cef3f68f57abad42b607baa7c52b3b1f67e49
[INFO] running `Command { std: "docker" "start" "-a" "9d10c2947fe41867bfd0bfa7bc1cef3f68f57abad42b607baa7c52b3b1f67e49", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.131
[INFO] [stderr]    Compiling proc-macro2 v1.0.43
[INFO] [stderr]    Compiling unicode-ident v1.0.3
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling syn v1.0.99
[INFO] [stderr]    Compiling serde_derive v1.0.143
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling serde v1.0.143
[INFO] [stderr]     Checking itoa v1.0.3
[INFO] [stderr]    Compiling time-macros v0.2.4
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking num_threads v0.1.6
[INFO] [stderr]    Compiling serde_json v1.0.83
[INFO] [stderr]     Checking ryu v1.0.11
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking colored v2.0.0
[INFO] [stderr]     Checking threadpool v1.8.1
[INFO] [stderr]     Checking time v0.3.13
[INFO] [stderr]     Checking simple_logger v2.2.0
[INFO] [stderr]     Checking untitled v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `debug` and `info`
[INFO] [stdout]  --> src/common.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use log::{debug, info};
[INFO] [stdout]   |           ^^^^^  ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::process::id`
[INFO] [stdout]  --> src/common.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::process::id;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Arc`, `Mutex`, and `mpsc`
[INFO] [stdout]  --> src/common.rs:4:17
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::sync::{mpsc, Arc, Mutex};
[INFO] [stdout]   |                 ^^^^  ^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::thread::JoinHandle`
[INFO] [stdout]  --> src/common.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::thread::JoinHandle;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `debug` and `info`
[INFO] [stdout]  --> src/common.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use log::{debug, info};
[INFO] [stdout]   |           ^^^^^  ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::process::id`
[INFO] [stdout]  --> src/common.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::process::id;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Arc`, `Mutex`, and `mpsc`
[INFO] [stdout]  --> src/common.rs:4:17
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::sync::{mpsc, Arc, Mutex};
[INFO] [stdout]   |                 ^^^^  ^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::thread::JoinHandle`
[INFO] [stdout]  --> src/common.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::thread::JoinHandle;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `trace` and `warn`
[INFO] [stdout]  --> src/server.rs:3:31
[INFO] [stdout]   |
[INFO] [stdout] 3 | use log::{debug, error, info, trace, warn, Level};
[INFO] [stdout]   |                               ^^^^^  ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Borrow` and `Cow`
[INFO] [stdout]  --> src/server.rs:4:19
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::borrow::{Borrow, Cow};
[INFO] [stdout]   |                   ^^^^^^  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::sync::mpsc::Receiver`
[INFO] [stdout]  --> src/server.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::sync::mpsc::Receiver;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sleep`
[INFO] [stdout]  --> src/server.rs:9:19
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::thread::{sleep, JoinHandle};
[INFO] [stdout]   |                   ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Duration`
[INFO] [stdout]   --> src/server.rs:10:17
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::time::{Duration, SystemTime};
[INFO] [stdout]    |                 ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `trace` and `warn`
[INFO] [stdout]  --> src/server.rs:3:31
[INFO] [stdout]   |
[INFO] [stdout] 3 | use log::{debug, error, info, trace, warn, Level};
[INFO] [stdout]   |                               ^^^^^  ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Borrow` and `Cow`
[INFO] [stdout]  --> src/server.rs:4:19
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::borrow::{Borrow, Cow};
[INFO] [stdout]   |                   ^^^^^^  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::sync::mpsc::Receiver`
[INFO] [stdout]  --> src/server.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::sync::mpsc::Receiver;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sleep`
[INFO] [stdout]  --> src/server.rs:9:19
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::thread::{sleep, JoinHandle};
[INFO] [stdout]   |                   ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Duration`
[INFO] [stdout]   --> src/server.rs:10:17
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::time::{Duration, SystemTime};
[INFO] [stdout]    |                 ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Read`
[INFO] [stdout]  --> src/server.rs:5:46
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::io::{BufRead, BufReader, BufWriter, Read, Write};
[INFO] [stdout]   |                                              ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `config`
[INFO] [stdout]  --> src/thread.rs:7:34
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn process(rx: Receiver<u8>, config: Config) {
[INFO] [stdout]   |                                  ^^^^^^ help: if this is intentional, prefix it with an underscore: `_config`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Read`
[INFO] [stdout]  --> src/server.rs:5:46
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::io::{BufRead, BufReader, BufWriter, Read, Write};
[INFO] [stdout]   |                                              ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `config`
[INFO] [stdout]  --> src/thread.rs:7:34
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn process(rx: Receiver<u8>, config: Config) {
[INFO] [stdout]   |                                  ^^^^^^ help: if this is intentional, prefix it with an underscore: `_config`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `config`
[INFO] [stdout]    --> src/client.rs:113:32
[INFO] [stdout]     |
[INFO] [stdout] 113 |             Response::Config { config } => Ok(()),
[INFO] [stdout]     |                                ^^^^^^ help: try ignoring the field: `config: _`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `config`
[INFO] [stdout]    --> src/client.rs:113:32
[INFO] [stdout]     |
[INFO] [stdout] 113 |             Response::Config { config } => Ok(()),
[INFO] [stdout]     |                                ^^^^^^ help: try ignoring the field: `config: _`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/client.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 |     IO(std::io::Error),
[INFO] [stdout]   |     -- ^^^^^^^^^^^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `ClientError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 9 |     IO(()),
[INFO] [stdout]   |        ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/client.rs:10:10
[INFO] [stdout]    |
[INFO] [stdout] 10 |     JSON(serde_json::Error),
[INFO] [stdout]    |     ---- ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ClientError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 10 |     JSON(()),
[INFO] [stdout]    |          ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/client.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 |     Server(String),
[INFO] [stdout]    |     ------ ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ClientError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 11 |     Server(()),
[INFO] [stdout]    |            ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/client.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 |     Client(String),
[INFO] [stdout]    |     ------ ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ClientError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 12 |     Client(()),
[INFO] [stdout]    |            ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/client.rs:13:13
[INFO] [stdout]    |
[INFO] [stdout] 13 |     Unknown(String)
[INFO] [stdout]    |     ------- ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ClientError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 13 |     Unknown(())
[INFO] [stdout]    |             ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `system_uptime` and `thread_uptime` are never read
[INFO] [stdout]   --> src/client.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 36 | struct Status {
[INFO] [stdout]    |        ------ fields in this struct
[INFO] [stdout] 37 |     running: bool,
[INFO] [stdout] 38 |     system_uptime: u64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 39 |     thread_uptime: Option<u64>
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `req_get_config` is never used
[INFO] [stdout]    --> src/client.rs:101:8
[INFO] [stdout]     |
[INFO] [stdout] 47  | impl Client {
[INFO] [stdout]     | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 101 |     fn req_get_config(&self) -> Result<Config> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/client.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 |     IO(std::io::Error),
[INFO] [stdout]   |     -- ^^^^^^^^^^^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `ClientError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 9 |     IO(()),
[INFO] [stdout]   |        ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/client.rs:10:10
[INFO] [stdout]    |
[INFO] [stdout] 10 |     JSON(serde_json::Error),
[INFO] [stdout]    |     ---- ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ClientError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 10 |     JSON(()),
[INFO] [stdout]    |          ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/client.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 |     Server(String),
[INFO] [stdout]    |     ------ ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ClientError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 11 |     Server(()),
[INFO] [stdout]    |            ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/client.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 |     Client(String),
[INFO] [stdout]    |     ------ ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ClientError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 12 |     Client(()),
[INFO] [stdout]    |            ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/client.rs:13:13
[INFO] [stdout]    |
[INFO] [stdout] 13 |     Unknown(String)
[INFO] [stdout]    |     ------- ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ClientError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 13 |     Unknown(())
[INFO] [stdout]    |             ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `system_uptime` and `thread_uptime` are never read
[INFO] [stdout]   --> src/client.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 36 | struct Status {
[INFO] [stdout]    |        ------ fields in this struct
[INFO] [stdout] 37 |     running: bool,
[INFO] [stdout] 38 |     system_uptime: u64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 39 |     thread_uptime: Option<u64>
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `req_get_config` is never used
[INFO] [stdout]    --> src/client.rs:101:8
[INFO] [stdout]     |
[INFO] [stdout] 47  | impl Client {
[INFO] [stdout]     | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 101 |     fn req_get_config(&self) -> Result<Config> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/server.rs:142:11
[INFO] [stdout]     |
[INFO] [stdout] 142 | fn handle(mut conn: TcpStream, state: Arc<Mutex<ServerState>>) -> std::io::Result<()> {
[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: variable does not need to be mutable
[INFO] [stdout]    --> src/server.rs:143:9
[INFO] [stdout]     |
[INFO] [stdout] 143 |     let mut reader = BufReader::new(&conn);
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/server.rs:142:11
[INFO] [stdout]     |
[INFO] [stdout] 142 | fn handle(mut conn: TcpStream, state: Arc<Mutex<ServerState>>) -> std::io::Result<()> {
[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: variable does not need to be mutable
[INFO] [stdout]    --> src/server.rs:143:9
[INFO] [stdout]     |
[INFO] [stdout] 143 |     let mut reader = BufReader::new(&conn);
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/server.rs:148:5
[INFO] [stdout]     |
[INFO] [stdout] 148 |     writer.write(b"\n");
[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] 148 |     let _ = writer.write(b"\n");
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/server.rs:170:13
[INFO] [stdout]     |
[INFO] [stdout] 170 |             writer.write(b"\n");
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 170 |             let _ = writer.write(b"\n");
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/server.rs:148:5
[INFO] [stdout]     |
[INFO] [stdout] 148 |     writer.write(b"\n");
[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] 148 |     let _ = writer.write(b"\n");
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/server.rs:170:13
[INFO] [stdout]     |
[INFO] [stdout] 170 |             writer.write(b"\n");
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 170 |             let _ = writer.write(b"\n");
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.11s
[INFO] running `Command { std: "docker" "inspect" "9d10c2947fe41867bfd0bfa7bc1cef3f68f57abad42b607baa7c52b3b1f67e49", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d10c2947fe41867bfd0bfa7bc1cef3f68f57abad42b607baa7c52b3b1f67e49", kill_on_drop: false }`
[INFO] [stdout] 9d10c2947fe41867bfd0bfa7bc1cef3f68f57abad42b607baa7c52b3b1f67e49
[INFO] checking wjorda/untitled against try#f9935d29d867449445ee008640ccca1bf1ae0889+rustflags=-Dtail_expr_drop_order for crater-rollup-uwu
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwjorda%2Funtitled" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/wjorda/untitled on toolchain f9935d29d867449445ee008640ccca1bf1ae0889
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f9935d29d867449445ee008640ccca1bf1ae0889" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/wjorda/untitled
[INFO] finished tweaking git repo https://github.com/wjorda/untitled
[INFO] tweaked toml for git repo https://github.com/wjorda/untitled written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/wjorda/untitled 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" "+f9935d29d867449445ee008640ccca1bf1ae0889" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+f9935d29d867449445ee008640ccca1bf1ae0889" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 34a43bdb4c3483e05c194ef1a5182609bbbeb3d8ccad1b0967358076019ab148
[INFO] running `Command { std: "docker" "start" "-a" "34a43bdb4c3483e05c194ef1a5182609bbbeb3d8ccad1b0967358076019ab148", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "34a43bdb4c3483e05c194ef1a5182609bbbeb3d8ccad1b0967358076019ab148", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "34a43bdb4c3483e05c194ef1a5182609bbbeb3d8ccad1b0967358076019ab148", kill_on_drop: false }`
[INFO] [stdout] 34a43bdb4c3483e05c194ef1a5182609bbbeb3d8ccad1b0967358076019ab148
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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 -Dtail_expr_drop_order" "-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+f9935d29d867449445ee008640ccca1bf1ae0889" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4cbc18407da00430a5ccbf190efd918a1e56a3fd2f560900aea75f19a4dde4e0
[INFO] running `Command { std: "docker" "start" "-a" "4cbc18407da00430a5ccbf190efd918a1e56a3fd2f560900aea75f19a4dde4e0", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.131
[INFO] [stderr]    Compiling proc-macro2 v1.0.43
[INFO] [stderr]    Compiling unicode-ident v1.0.3
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling syn v1.0.99
[INFO] [stderr]    Compiling serde_derive v1.0.143
[INFO] [stderr]     Checking itoa v1.0.3
[INFO] [stderr]    Compiling serde v1.0.143
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]     Checking num_threads v0.1.6
[INFO] [stderr]    Compiling time-macros v0.2.4
[INFO] [stderr]    Compiling serde_json v1.0.83
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking ryu v1.0.11
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking colored v2.0.0
[INFO] [stderr]     Checking threadpool v1.8.1
[INFO] [stderr]     Checking time v0.3.13
[INFO] [stderr]     Checking simple_logger v2.2.0
[INFO] [stderr]     Checking untitled v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `debug` and `info`
[INFO] [stdout]  --> src/common.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use log::{debug, info};
[INFO] [stdout]   |           ^^^^^  ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `debug` and `info`
[INFO] [stdout]  --> src/common.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use log::{debug, info};
[INFO] [stdout]   |           ^^^^^  ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::process::id`
[INFO] [stdout]  --> src/common.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::process::id;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::process::id`
[INFO] [stdout]  --> src/common.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::process::id;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Arc`, `Mutex`, and `mpsc`
[INFO] [stdout]  --> src/common.rs:4:17
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::sync::{mpsc, Arc, Mutex};
[INFO] [stdout]   |                 ^^^^  ^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Arc`, `Mutex`, and `mpsc`
[INFO] [stdout]  --> src/common.rs:4:17
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::sync::{mpsc, Arc, Mutex};
[INFO] [stdout]   |                 ^^^^  ^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::thread::JoinHandle`
[INFO] [stdout]  --> src/common.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::thread::JoinHandle;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::thread::JoinHandle`
[INFO] [stdout]  --> src/common.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::thread::JoinHandle;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `trace` and `warn`
[INFO] [stdout]  --> src/server.rs:3:31
[INFO] [stdout]   |
[INFO] [stdout] 3 | use log::{debug, error, info, trace, warn, Level};
[INFO] [stdout]   |                               ^^^^^  ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Borrow` and `Cow`
[INFO] [stdout]  --> src/server.rs:4:19
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::borrow::{Borrow, Cow};
[INFO] [stdout]   |                   ^^^^^^  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::sync::mpsc::Receiver`
[INFO] [stdout]  --> src/server.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::sync::mpsc::Receiver;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sleep`
[INFO] [stdout]  --> src/server.rs:9:19
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::thread::{sleep, JoinHandle};
[INFO] [stdout]   |                   ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Duration`
[INFO] [stdout]   --> src/server.rs:10:17
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::time::{Duration, SystemTime};
[INFO] [stdout]    |                 ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `trace` and `warn`
[INFO] [stdout]  --> src/server.rs:3:31
[INFO] [stdout]   |
[INFO] [stdout] 3 | use log::{debug, error, info, trace, warn, Level};
[INFO] [stdout]   |                               ^^^^^  ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Borrow` and `Cow`
[INFO] [stdout]  --> src/server.rs:4:19
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::borrow::{Borrow, Cow};
[INFO] [stdout]   |                   ^^^^^^  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::sync::mpsc::Receiver`
[INFO] [stdout]  --> src/server.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::sync::mpsc::Receiver;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sleep`
[INFO] [stdout]  --> src/server.rs:9:19
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::thread::{sleep, JoinHandle};
[INFO] [stdout]   |                   ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Duration`
[INFO] [stdout]   --> src/server.rs:10:17
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::time::{Duration, SystemTime};
[INFO] [stdout]    |                 ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Read`
[INFO] [stdout]  --> src/server.rs:5:46
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::io::{BufRead, BufReader, BufWriter, Read, Write};
[INFO] [stdout]   |                                              ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `config`
[INFO] [stdout]  --> src/thread.rs:7:34
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn process(rx: Receiver<u8>, config: Config) {
[INFO] [stdout]   |                                  ^^^^^^ help: if this is intentional, prefix it with an underscore: `_config`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `config`
[INFO] [stdout]    --> src/client.rs:113:32
[INFO] [stdout]     |
[INFO] [stdout] 113 |             Response::Config { config } => Ok(()),
[INFO] [stdout]     |                                ^^^^^^ help: try ignoring the field: `config: _`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/client.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 |     IO(std::io::Error),
[INFO] [stdout]   |     -- ^^^^^^^^^^^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `ClientError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 9 |     IO(()),
[INFO] [stdout]   |        ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/client.rs:10:10
[INFO] [stdout]    |
[INFO] [stdout] 10 |     JSON(serde_json::Error),
[INFO] [stdout]    |     ---- ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ClientError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 10 |     JSON(()),
[INFO] [stdout]    |          ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Read`
[INFO] [stdout]  --> src/server.rs:5:46
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::io::{BufRead, BufReader, BufWriter, Read, Write};
[INFO] [stdout]   |                                              ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/client.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 |     Server(String),
[INFO] [stdout]    |     ------ ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ClientError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 11 |     Server(()),
[INFO] [stdout]    |            ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/client.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 |     Client(String),
[INFO] [stdout]    |     ------ ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ClientError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 12 |     Client(()),
[INFO] [stdout]    |            ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/client.rs:13:13
[INFO] [stdout]    |
[INFO] [stdout] 13 |     Unknown(String)
[INFO] [stdout]    |     ------- ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ClientError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 13 |     Unknown(())
[INFO] [stdout]    |             ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `config`
[INFO] [stdout]  --> src/thread.rs:7:34
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn process(rx: Receiver<u8>, config: Config) {
[INFO] [stdout]   |                                  ^^^^^^ help: if this is intentional, prefix it with an underscore: `_config`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `system_uptime` and `thread_uptime` are never read
[INFO] [stdout]   --> src/client.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 36 | struct Status {
[INFO] [stdout]    |        ------ fields in this struct
[INFO] [stdout] 37 |     running: bool,
[INFO] [stdout] 38 |     system_uptime: u64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 39 |     thread_uptime: Option<u64>
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `req_get_config` is never used
[INFO] [stdout]    --> src/client.rs:101:8
[INFO] [stdout]     |
[INFO] [stdout] 47  | impl Client {
[INFO] [stdout]     | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 101 |     fn req_get_config(&self) -> Result<Config> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/server.rs:142:11
[INFO] [stdout]     |
[INFO] [stdout] 142 | fn handle(mut conn: TcpStream, state: Arc<Mutex<ServerState>>) -> std::io::Result<()> {
[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: variable does not need to be mutable
[INFO] [stdout]    --> src/server.rs:143:9
[INFO] [stdout]     |
[INFO] [stdout] 143 |     let mut reader = BufReader::new(&conn);
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `config`
[INFO] [stdout]    --> src/client.rs:113:32
[INFO] [stdout]     |
[INFO] [stdout] 113 |             Response::Config { config } => Ok(()),
[INFO] [stdout]     |                                ^^^^^^ help: try ignoring the field: `config: _`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/client.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 |     IO(std::io::Error),
[INFO] [stdout]   |     -- ^^^^^^^^^^^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `ClientError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 9 |     IO(()),
[INFO] [stdout]   |        ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/client.rs:10:10
[INFO] [stdout]    |
[INFO] [stdout] 10 |     JSON(serde_json::Error),
[INFO] [stdout]    |     ---- ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ClientError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 10 |     JSON(()),
[INFO] [stdout]    |          ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/client.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 |     Server(String),
[INFO] [stdout]    |     ------ ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ClientError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 11 |     Server(()),
[INFO] [stdout]    |            ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/client.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 |     Client(String),
[INFO] [stdout]    |     ------ ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ClientError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 12 |     Client(()),
[INFO] [stdout]    |            ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/client.rs:13:13
[INFO] [stdout]    |
[INFO] [stdout] 13 |     Unknown(String)
[INFO] [stdout]    |     ------- ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ClientError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 13 |     Unknown(())
[INFO] [stdout]    |             ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `system_uptime` and `thread_uptime` are never read
[INFO] [stdout]   --> src/client.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 36 | struct Status {
[INFO] [stdout]    |        ------ fields in this struct
[INFO] [stdout] 37 |     running: bool,
[INFO] [stdout] 38 |     system_uptime: u64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 39 |     thread_uptime: Option<u64>
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `req_get_config` is never used
[INFO] [stdout]    --> src/client.rs:101:8
[INFO] [stdout]     |
[INFO] [stdout] 47  | impl Client {
[INFO] [stdout]     | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 101 |     fn req_get_config(&self) -> Result<Config> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]   --> src/server.rs:26:21
[INFO] [stdout]    |
[INFO] [stdout] 23 |         let (tx, rx) = mpsc::channel();
[INFO] [stdout]    |              --  -- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout]    |              |
[INFO] [stdout]    |              these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] ...
[INFO] [stdout] 26 |             thread: std::thread::spawn(move || thread::process(rx, config)),
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout]    = note: requested on the command line with `-D tail-expr-drop-order`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/server.rs:142:11
[INFO] [stdout]     |
[INFO] [stdout] 142 | fn handle(mut conn: TcpStream, state: Arc<Mutex<ServerState>>) -> std::io::Result<()> {
[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: variable does not need to be mutable
[INFO] [stdout]    --> src/server.rs:143:9
[INFO] [stdout]     |
[INFO] [stdout] 143 |     let mut reader = BufReader::new(&conn);
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]   --> src/server.rs:26:21
[INFO] [stdout]    |
[INFO] [stdout] 23 |         let (tx, rx) = mpsc::channel();
[INFO] [stdout]    |              --  -- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout]    |              |
[INFO] [stdout]    |              these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] ...
[INFO] [stdout] 26 |             thread: std::thread::spawn(move || thread::process(rx, config)),
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout]    = note: requested on the command line with `-D tail-expr-drop-order`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/server.rs:148:5
[INFO] [stdout]     |
[INFO] [stdout] 148 |     writer.write(b"\n");
[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] 148 |     let _ = writer.write(b"\n");
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/server.rs:170:13
[INFO] [stdout]     |
[INFO] [stdout] 170 |             writer.write(b"\n");
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 170 |             let _ = writer.write(b"\n");
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/server.rs:148:5
[INFO] [stdout]     |
[INFO] [stdout] 148 |     writer.write(b"\n");
[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] 148 |     let _ = writer.write(b"\n");
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/server.rs:170:13
[INFO] [stdout]     |
[INFO] [stdout] 170 |             writer.write(b"\n");
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 170 |             let _ = writer.write(b"\n");
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `untitled` (bin "server" test) due to 2 previous errors; 11 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to 1 previous error; 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `untitled` (bin "server") due to 2 previous errors; 11 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "4cbc18407da00430a5ccbf190efd918a1e56a3fd2f560900aea75f19a4dde4e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4cbc18407da00430a5ccbf190efd918a1e56a3fd2f560900aea75f19a4dde4e0", kill_on_drop: false }`
[INFO] [stdout] 4cbc18407da00430a5ccbf190efd918a1e56a3fd2f560900aea75f19a4dde4e0