[INFO] cloning repository https://github.com/TalpsG/talps-manager
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/TalpsG/talps-manager" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTalpsG%2Ftalps-manager", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTalpsG%2Ftalps-manager'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0ab38ee4a91030beb66c0c54758f633d5dbcb344
[INFO] building TalpsG/talps-manager against master#ad85bc524b1ad696e42061ad8338d382dffbdbe5 for pr-146237-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTalpsG%2Ftalps-manager" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/TalpsG/talps-manager
[INFO] finished tweaking git repo https://github.com/TalpsG/talps-manager
[INFO] tweaked toml for git repo https://github.com/TalpsG/talps-manager written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/TalpsG/talps-manager 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 git repo https://github.com/TalpsG/talps-manager 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]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded jsonrpsee-types v0.25.1
[INFO] [stderr]   Downloaded jsonrpsee v0.25.1
[INFO] [stderr]   Downloaded soketto v0.8.1
[INFO] [stderr]   Downloaded gloo-timers v0.2.6
[INFO] [stderr]   Downloaded jsonrpsee-client-transport v0.25.1
[INFO] [stderr]   Downloaded jsonrpsee-ws-client v0.25.1
[INFO] [stderr]   Downloaded send_wrapper v0.4.0
[INFO] [stderr]   Downloaded rustls-platform-verifier v0.5.3
[INFO] [stderr]   Downloaded route-recognizer v0.3.1
[INFO] [stderr]   Downloaded jsonrpsee-http-client v0.25.1
[INFO] [stderr]   Downloaded jsonrpsee-proc-macros v0.25.1
[INFO] [stderr]   Downloaded jsonrpsee-server v0.25.1
[INFO] [stderr]   Downloaded jsonrpsee-wasm-client v0.25.1
[INFO] [stderr]   Downloaded gloo-net v0.6.0
[INFO] [stderr]   Downloaded rustls-platform-verifier-android v0.1.1
[INFO] [stderr]   Downloaded gloo-utils v0.2.0
[INFO] [stderr]   Downloaded webpki-root-certs v1.0.0
[INFO] [stderr]   Downloaded webpki-root-certs v0.26.11
[INFO] [stderr]   Downloaded jsonrpsee-core v0.25.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] dcef99ee8d949c23a64c7fb2a424e003dbd78311aabdd214ae682f82f62ed96e
[INFO] running `Command { std: "docker" "start" "-a" "dcef99ee8d949c23a64c7fb2a424e003dbd78311aabdd214ae682f82f62ed96e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dcef99ee8d949c23a64c7fb2a424e003dbd78311aabdd214ae682f82f62ed96e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dcef99ee8d949c23a64c7fb2a424e003dbd78311aabdd214ae682f82f62ed96e", kill_on_drop: false }`
[INFO] [stdout] dcef99ee8d949c23a64c7fb2a424e003dbd78311aabdd214ae682f82f62ed96e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 853f0739c3ce7bb79924858a308cf3631029dff243a1f535311ee3859abce999
[INFO] running `Command { std: "docker" "start" "-a" "853f0739c3ce7bb79924858a308cf3631029dff243a1f535311ee3859abce999", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.101
[INFO] [stderr]    Compiling smallvec v1.15.0
[INFO] [stderr]    Compiling futures-core v0.3.31
[INFO] [stderr]    Compiling futures-io v0.3.31
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.100
[INFO] [stderr]    Compiling socket2 v0.5.10
[INFO] [stderr]    Compiling mio v1.0.4
[INFO] [stderr]    Compiling cc v1.2.25
[INFO] [stderr]    Compiling futures-channel v0.3.31
[INFO] [stderr]    Compiling tracing-core v0.1.33
[INFO] [stderr]    Compiling parking_lot_core v0.9.11
[INFO] [stderr]    Compiling bumpalo v3.17.0
[INFO] [stderr]    Compiling futures-task v0.3.31
[INFO] [stderr]    Compiling parking_lot v0.12.4
[INFO] [stderr]    Compiling wasm-bindgen v0.2.100
[INFO] [stderr]    Compiling getrandom v0.3.3
[INFO] [stderr]    Compiling serde_json v1.0.140
[INFO] [stderr]    Compiling rustls v0.23.27
[INFO] [stderr]    Compiling subtle v2.6.1
[INFO] [stderr]    Compiling crypto-common v0.1.6
[INFO] [stderr]    Compiling send_wrapper v0.4.0
[INFO] [stderr]    Compiling http-body-util v0.1.3
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]    Compiling percent-encoding v2.3.1
[INFO] [stderr]    Compiling base64 v0.22.1
[INFO] [stderr]    Compiling rustc-hash v2.1.1
[INFO] [stderr]    Compiling rand_core v0.9.3
[INFO] [stderr]    Compiling rustls-native-certs v0.8.1
[INFO] [stderr]    Compiling sha1 v0.10.6
[INFO] [stderr]    Compiling form_urlencoded v1.2.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling utf8parse v0.2.2
[INFO] [stderr]    Compiling winnow v0.7.10
[INFO] [stderr]    Compiling rand_chacha v0.9.0
[INFO] [stderr]    Compiling toml_datetime v0.6.9
[INFO] [stderr]    Compiling anstyle-parse v0.2.7
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling anstyle v1.0.11
[INFO] [stderr]    Compiling anstyle-query v1.1.3
[INFO] [stderr]    Compiling colorchoice v1.0.4
[INFO] [stderr]    Compiling is_terminal_polyfill v1.70.1
[INFO] [stderr]    Compiling rand v0.9.1
[INFO] [stderr]    Compiling clap_lex v0.7.4
[INFO] [stderr]    Compiling anstream v0.6.19
[INFO] [stderr]    Compiling route-recognizer v0.3.1
[INFO] [stderr]    Compiling strsim v0.11.1
[INFO] [stderr]    Compiling ring v0.17.14
[INFO] [stderr]    Compiling clap_builder v4.5.39
[INFO] [stderr]    Compiling tracing-log v0.2.0
[INFO] [stderr]    Compiling thread_local v1.1.8
[INFO] [stderr]    Compiling jsonrpsee-wasm-client v0.25.1
[INFO] [stderr]    Compiling chrono v0.4.41
[INFO] [stderr]    Compiling toml_edit v0.22.26
[INFO] [stderr]    Compiling synstructure v0.13.2
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.100
[INFO] [stderr]    Compiling proc-macro-crate v3.3.0
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.100
[INFO] [stderr]    Compiling zerofrom-derive v0.1.6
[INFO] [stderr]    Compiling yoke-derive v0.8.0
[INFO] [stderr]    Compiling zerovec-derive v0.11.1
[INFO] [stderr]    Compiling displaydoc v0.2.5
[INFO] [stderr]    Compiling tokio-macros v2.5.0
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling tracing-attributes v0.1.28
[INFO] [stderr]    Compiling tokio v1.45.1
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.100
[INFO] [stderr]    Compiling zerofrom v0.1.6
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling yoke v0.8.0
[INFO] [stderr]    Compiling zerovec v0.11.2
[INFO] [stderr]    Compiling zerotrie v0.2.2
[INFO] [stderr]    Compiling rustls-webpki v0.103.3
[INFO] [stderr]    Compiling tracing v0.1.41
[INFO] [stderr]    Compiling js-sys v0.3.77
[INFO] [stderr]    Compiling thiserror-impl v2.0.12
[INFO] [stderr]    Compiling tinystr v0.8.1
[INFO] [stderr]    Compiling icu_locale_core v2.0.0
[INFO] [stderr]    Compiling potential_utf v0.1.2
[INFO] [stderr]    Compiling icu_collections v2.0.0
[INFO] [stderr]    Compiling icu_provider v2.0.0
[INFO] [stderr]    Compiling thiserror v2.0.12
[INFO] [stderr]    Compiling pin-project-internal v1.1.10
[INFO] [stderr]    Compiling icu_properties v2.0.1
[INFO] [stderr]    Compiling icu_normalizer v2.0.0
[INFO] [stderr]    Compiling tower v0.5.2
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling async-trait v0.1.88
[INFO] [stderr]    Compiling pin-project v1.1.10
[INFO] [stderr]    Compiling futures v0.3.31
[INFO] [stderr]    Compiling jsonrpsee-proc-macros v0.25.1
[INFO] [stderr]    Compiling soketto v0.8.1
[INFO] [stderr]    Compiling idna_adapter v1.2.1
[INFO] [stderr]    Compiling idna v1.0.3
[INFO] [stderr]    Compiling clap_derive v4.5.32
[INFO] [stderr]    Compiling tokio-util v0.7.15
[INFO] [stderr]    Compiling gloo-timers v0.2.6
[INFO] [stderr]    Compiling futures-timer v3.0.3
[INFO] [stderr]    Compiling tokio-stream v0.1.17
[INFO] [stderr]    Compiling h2 v0.4.10
[INFO] [stderr]    Compiling tokio-rustls v0.26.2
[INFO] [stderr]    Compiling url v2.5.4
[INFO] [stderr]    Compiling tracing-subscriber v0.3.19
[INFO] [stderr]    Compiling clap v4.5.39
[INFO] [stderr]    Compiling jsonrpsee-types v0.25.1
[INFO] [stderr]    Compiling rustls-platform-verifier v0.5.3
[INFO] [stderr]    Compiling jsonrpsee-core v0.25.1
[INFO] [stderr]    Compiling hyper v1.6.0
[INFO] [stderr]    Compiling jsonrpsee-client-transport v0.25.1
[INFO] [stderr]    Compiling hyper-util v0.1.13
[INFO] [stderr]    Compiling jsonrpsee-ws-client v0.25.1
[INFO] [stderr]    Compiling hyper-rustls v0.27.6
[INFO] [stderr]    Compiling jsonrpsee-server v0.25.1
[INFO] [stderr]    Compiling jsonrpsee-http-client v0.25.1
[INFO] [stderr]    Compiling jsonrpsee v0.25.1
[INFO] [stderr]    Compiling talps-manager v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Stderr`
[INFO] [stdout]  --> src/manager.rs:9:41
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::io::{BufRead, BufReader, Read, Stderr, Write}; // Ensure Write trait is in scope
[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::u64`
[INFO] [stdout]   --> src/manager.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use std::u64;
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `error`
[INFO] [stdout]   --> src/manager.rs:17:15
[INFO] [stdout]    |
[INFO] [stdout] 17 | use tracing::{error, info};
[INFO] [stdout]    |               ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Read`
[INFO] [stdout]  --> src/manager.rs:9:35
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::io::{BufRead, BufReader, Read, Stderr, Write}; // Ensure Write trait is in scope
[INFO] [stdout]   |                                   ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `worker` is never read
[INFO] [stdout]   --> src/manager.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub struct TaskManager {
[INFO] [stdout]    |            ----------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 34 |     worker: Option<thread::JoinHandle<Result<()>>>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TaskManager` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2m 13s
[INFO] running `Command { std: "docker" "inspect" "853f0739c3ce7bb79924858a308cf3631029dff243a1f535311ee3859abce999", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "853f0739c3ce7bb79924858a308cf3631029dff243a1f535311ee3859abce999", kill_on_drop: false }`
[INFO] [stdout] 853f0739c3ce7bb79924858a308cf3631029dff243a1f535311ee3859abce999
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] bb298e0d666a84a3aa463759669c428fdaf25d9943e0f948201041af7e82e3a4
[INFO] running `Command { std: "docker" "start" "-a" "bb298e0d666a84a3aa463759669c428fdaf25d9943e0f948201041af7e82e3a4", kill_on_drop: false }`
[INFO] [stdout] warning: unused import: `Stderr`
[INFO] [stdout]  --> src/manager.rs:9:41
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::io::{BufRead, BufReader, Read, Stderr, Write}; // Ensure Write trait is in scope
[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::u64`
[INFO] [stdout]   --> src/manager.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use std::u64;
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `error`
[INFO] [stdout]   --> src/manager.rs:17:15
[INFO] [stdout]    |
[INFO] [stdout] 17 | use tracing::{error, info};
[INFO] [stdout]    |               ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Read`
[INFO] [stdout]  --> src/manager.rs:9:35
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::io::{BufRead, BufReader, Read, Stderr, Write}; // Ensure Write trait is in scope
[INFO] [stdout]   |                                   ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `worker` is never read
[INFO] [stdout]   --> src/manager.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub struct TaskManager {
[INFO] [stdout]    |            ----------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 34 |     worker: Option<thread::JoinHandle<Result<()>>>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TaskManager` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling talps-manager v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Stderr`
[INFO] [stdout]  --> src/manager.rs:9:41
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::io::{BufRead, BufReader, Read, Stderr, Write}; // Ensure Write trait is in scope
[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::u64`
[INFO] [stdout]   --> src/manager.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use std::u64;
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `error`
[INFO] [stdout]   --> src/manager.rs:17:15
[INFO] [stdout]    |
[INFO] [stdout] 17 | use tracing::{error, info};
[INFO] [stdout]    |               ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Read`
[INFO] [stdout]  --> src/manager.rs:9:35
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::io::{BufRead, BufReader, Read, Stderr, Write}; // Ensure Write trait is in scope
[INFO] [stdout]   |                                   ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/manager.rs:230:17
[INFO] [stdout]     |
[INFO] [stdout] 230 |             let mut manager = TaskManager::new();
[INFO] [stdout]     |                 ----^^^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/manager.rs:261:13
[INFO] [stdout]     |
[INFO] [stdout] 261 |         let mut manager = TaskManager::new();
[INFO] [stdout]     |             ----^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/manager.rs:286:13
[INFO] [stdout]     |
[INFO] [stdout] 286 |         let mut manager = TaskManager::new();
[INFO] [stdout]     |             ----^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `worker` is never read
[INFO] [stdout]   --> src/manager.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub struct TaskManager {
[INFO] [stdout]    |            ----------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 34 |     worker: Option<thread::JoinHandle<Result<()>>>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TaskManager` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 9.75s
[INFO] running `Command { std: "docker" "inspect" "bb298e0d666a84a3aa463759669c428fdaf25d9943e0f948201041af7e82e3a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb298e0d666a84a3aa463759669c428fdaf25d9943e0f948201041af7e82e3a4", kill_on_drop: false }`
[INFO] [stdout] bb298e0d666a84a3aa463759669c428fdaf25d9943e0f948201041af7e82e3a4
