[INFO] cloning repository https://github.com/luoxiaozero/hello-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/luoxiaozero/hello-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluoxiaozero%2Fhello-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluoxiaozero%2Fhello-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] be6164bd4718f67f6cff4ce69690133a3427874f
[INFO] testing luoxiaozero/hello-rust against 1.76.0 for beta-1.77-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluoxiaozero%2Fhello-rust" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/luoxiaozero/hello-rust on toolchain 1.76.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/luoxiaozero/hello-rust
[INFO] finished tweaking git repo https://github.com/luoxiaozero/hello-rust
[INFO] tweaked toml for git repo https://github.com/luoxiaozero/hello-rust written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/luoxiaozero/hello-rust 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" "+1.76.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.76.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f061373f5c8c9a45994ebb43e81862b3895f0424087984f11b40fd5995692eb6
[INFO] running `Command { std: "docker" "start" "-a" "f061373f5c8c9a45994ebb43e81862b3895f0424087984f11b40fd5995692eb6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f061373f5c8c9a45994ebb43e81862b3895f0424087984f11b40fd5995692eb6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f061373f5c8c9a45994ebb43e81862b3895f0424087984f11b40fd5995692eb6", kill_on_drop: false }`
[INFO] [stdout] f061373f5c8c9a45994ebb43e81862b3895f0424087984f11b40fd5995692eb6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.76.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aa1b1c33f63a076ca42f58d9ac71727d8d8bc1fd1a878cd968c630a960ed812e
[INFO] running `Command { std: "docker" "start" "-a" "aa1b1c33f63a076ca42f58d9ac71727d8d8bc1fd1a878cd968c630a960ed812e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.42
[INFO] [stderr]    Compiling unicode-ident v1.0.2
[INFO] [stderr]    Compiling quote v1.0.20
[INFO] [stderr]    Compiling syn v1.0.98
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling futures-core v0.3.25
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling futures-io v0.3.25
[INFO] [stderr]    Compiling pin-project-lite v0.2.9
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling slab v0.4.7
[INFO] [stderr]    Compiling cache-padded v1.2.0
[INFO] [stderr]    Compiling value-bag v1.0.0-alpha.9
[INFO] [stderr]    Compiling concurrent-queue v1.2.4
[INFO] [stderr]    Compiling waker-fn v1.1.0
[INFO] [stderr]    Compiling fastrand v1.8.0
[INFO] [stderr]    Compiling parking v2.0.0
[INFO] [stderr]    Compiling polling v2.3.0
[INFO] [stderr]    Compiling futures-lite v1.12.0
[INFO] [stderr]    Compiling event-listener v2.5.3
[INFO] [stderr]    Compiling futures-channel v0.3.25
[INFO] [stderr]    Compiling futures-task v0.3.25
[INFO] [stderr]    Compiling once_cell v1.15.0
[INFO] [stderr]    Compiling async-io v1.9.0
[INFO] [stderr]    Compiling async-task v4.3.0
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling futures-util v0.3.25
[INFO] [stderr]    Compiling serde_derive v1.0.140
[INFO] [stderr]    Compiling futures-sink v0.3.25
[INFO] [stderr]    Compiling socket2 v0.4.7
[INFO] [stderr]    Compiling getrandom v0.2.7
[INFO] [stderr]    Compiling async-channel v1.7.1
[INFO] [stderr]    Compiling atomic-waker v1.0.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.12
[INFO] [stderr]    Compiling serde v1.0.140
[INFO] [stderr]    Compiling async-lock v2.5.0
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling blocking v1.2.0
[INFO] [stderr]    Compiling async-executor v1.4.1
[INFO] [stderr]    Compiling ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling serde_json v1.0.82
[INFO] [stderr]    Compiling itoa v1.0.2
[INFO] [stderr]    Compiling ryu v1.0.10
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling ctor v0.1.26
[INFO] [stderr]    Compiling futures-macro v0.3.25
[INFO] [stderr]    Compiling kv-log-macro v1.0.7
[INFO] [stderr]    Compiling async-global-executor v2.3.0
[INFO] [stderr]    Compiling async-std v1.12.0
[INFO] [stderr]    Compiling futures-executor v0.3.25
[INFO] [stderr]    Compiling futures v0.3.25
[INFO] [stderr]    Compiling hello_cargo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `dest`
[INFO] [stdout]   --> src/chat/main.rs:38:13
[INFO] [stdout]    |
[INFO] [stdout] 38 |         let dest: Vec<String> = dest.split(',').map(|name| name.trim().to_string()).collect();
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_dest`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `msg`
[INFO] [stdout]   --> src/chat/main.rs:39:13
[INFO] [stdout]    |
[INFO] [stdout] 39 |         let msg: String = msg.to_string();
[INFO] [stdout]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_msg`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Result` is never used
[INFO] [stdout]  --> src/chat/main.rs:9:6
[INFO] [stdout]   |
[INFO] [stdout] 9 | type Result<T> = std::result::Result<T, Box<dyn std::error::Error + Send + Sync>>;
[INFO] [stdout]   |      ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `accept_loop` is never used
[INFO] [stdout]   --> src/chat/main.rs:11:10
[INFO] [stdout]    |
[INFO] [stdout] 11 | async fn accept_loop(addr: impl ToSocketAddrs) -> Result<()> {
[INFO] [stdout]    |          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `connection_loop` is never used
[INFO] [stdout]   --> src/chat/main.rs:22:10
[INFO] [stdout]    |
[INFO] [stdout] 22 | async fn connection_loop(stream: TcpStream) -> Result<()> {
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> src/chat/main.rs:45:4
[INFO] [stdout]    |
[INFO] [stdout] 45 | fn run() -> Result<()> {
[INFO] [stdout]    |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `aa` is never used
[INFO] [stdout]  --> src/deref.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | impl<T> MyBox<T> {
[INFO] [stdout]   | ---------------- method in this implementation
[INFO] [stdout] 6 |     fn aa(self) {
[INFO] [stdout]   |        ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/main.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 39 |     typed_example();
[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] 39 |     let _ = typed_example();
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.32s
[INFO] running `Command { std: "docker" "inspect" "aa1b1c33f63a076ca42f58d9ac71727d8d8bc1fd1a878cd968c630a960ed812e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa1b1c33f63a076ca42f58d9ac71727d8d8bc1fd1a878cd968c630a960ed812e", kill_on_drop: false }`
[INFO] [stdout] aa1b1c33f63a076ca42f58d9ac71727d8d8bc1fd1a878cd968c630a960ed812e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.76.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] adb9fed3aa350c3850799cbfea9e734a326eb80c2fd5c5d83349e114c5c32488
[INFO] running `Command { std: "docker" "start" "-a" "adb9fed3aa350c3850799cbfea9e734a326eb80c2fd5c5d83349e114c5c32488", kill_on_drop: false }`
[INFO] [stderr]    Compiling hello_cargo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `dest`
[INFO] [stdout]   --> src/chat/main.rs:38:13
[INFO] [stdout]    |
[INFO] [stdout] 38 |         let dest: Vec<String> = dest.split(',').map(|name| name.trim().to_string()).collect();
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_dest`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `msg`
[INFO] [stdout]   --> src/chat/main.rs:39:13
[INFO] [stdout]    |
[INFO] [stdout] 39 |         let msg: String = msg.to_string();
[INFO] [stdout]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_msg`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Result` is never used
[INFO] [stdout]  --> src/chat/main.rs:9:6
[INFO] [stdout]   |
[INFO] [stdout] 9 | type Result<T> = std::result::Result<T, Box<dyn std::error::Error + Send + Sync>>;
[INFO] [stdout]   |      ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `accept_loop` is never used
[INFO] [stdout]   --> src/chat/main.rs:11:10
[INFO] [stdout]    |
[INFO] [stdout] 11 | async fn accept_loop(addr: impl ToSocketAddrs) -> Result<()> {
[INFO] [stdout]    |          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `connection_loop` is never used
[INFO] [stdout]   --> src/chat/main.rs:22:10
[INFO] [stdout]    |
[INFO] [stdout] 22 | async fn connection_loop(stream: TcpStream) -> Result<()> {
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> src/chat/main.rs:45:4
[INFO] [stdout]    |
[INFO] [stdout] 45 | fn run() -> Result<()> {
[INFO] [stdout]    |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/main.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 39 |     typed_example();
[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] 39 |     let _ = typed_example();
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/chat/official.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 |     run();
[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] 22 |     let _ = run();
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.77s
[INFO] running `Command { std: "docker" "inspect" "adb9fed3aa350c3850799cbfea9e734a326eb80c2fd5c5d83349e114c5c32488", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "adb9fed3aa350c3850799cbfea9e734a326eb80c2fd5c5d83349e114c5c32488", kill_on_drop: false }`
[INFO] [stdout] adb9fed3aa350c3850799cbfea9e734a326eb80c2fd5c5d83349e114c5c32488
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.76.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6cc7abb640c602cee5ed6ecd5e7f611b1fcc46476463d9aa5ae6b1cf2ef9497d
[INFO] running `Command { std: "docker" "start" "-a" "6cc7abb640c602cee5ed6ecd5e7f611b1fcc46476463d9aa5ae6b1cf2ef9497d", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `dest`
[INFO] [stderr]   --> src/chat/main.rs:38:13
[INFO] [stderr]    |
[INFO] [stderr] 38 |         let dest: Vec<String> = dest.split(',').map(|name| name.trim().to_string()).collect();
[INFO] [stderr]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_dest`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `msg`
[INFO] [stderr]   --> src/chat/main.rs:39:13
[INFO] [stderr]    |
[INFO] [stderr] 39 |         let msg: String = msg.to_string();
[INFO] [stderr]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_msg`
[INFO] [stderr] 
[INFO] [stderr] warning: type alias `Result` is never used
[INFO] [stderr]  --> src/chat/main.rs:9:6
[INFO] [stderr]   |
[INFO] [stderr] 9 | type Result<T> = std::result::Result<T, Box<dyn std::error::Error + Send + Sync>>;
[INFO] [stderr]   |      ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `accept_loop` is never used
[INFO] [stderr]   --> src/chat/main.rs:11:10
[INFO] [stderr]    |
[INFO] [stderr] 11 | async fn accept_loop(addr: impl ToSocketAddrs) -> Result<()> {
[INFO] [stderr]    |          ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `connection_loop` is never used
[INFO] [stderr]   --> src/chat/main.rs:22:10
[INFO] [stderr]    |
[INFO] [stderr] 22 | async fn connection_loop(stream: TcpStream) -> Result<()> {
[INFO] [stderr]    |          ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run` is never used
[INFO] [stderr]   --> src/chat/main.rs:45:4
[INFO] [stderr]    |
[INFO] [stderr] 45 | fn run() -> Result<()> {
[INFO] [stderr]    |    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:39:5
[INFO] [stderr]    |
[INFO] [stderr] 39 |     typed_example();
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 39 |     let _ = typed_example();
[INFO] [stderr]    |     +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/chat/official.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 |     run();
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 22 |     let _ = run();
[INFO] [stderr]    |     +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `hello_cargo` (bin "hello_cargo" test) generated 8 warnings (run `cargo fix --bin "hello_cargo" --tests` to apply 2 suggestions)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/hello_cargo-319da964bdcb76c3)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test deref::main ... ok
[INFO] [stdout] test chat::official::main has been running for over 60 seconds
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "6cc7abb640c602cee5ed6ecd5e7f611b1fcc46476463d9aa5ae6b1cf2ef9497d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6cc7abb640c602cee5ed6ecd5e7f611b1fcc46476463d9aa5ae6b1cf2ef9497d", kill_on_drop: false }`
[INFO] [stdout] 6cc7abb640c602cee5ed6ecd5e7f611b1fcc46476463d9aa5ae6b1cf2ef9497d
[INFO] testing luoxiaozero/hello-rust against beta-2024-02-10 for beta-1.77-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluoxiaozero%2Fhello-rust" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/luoxiaozero/hello-rust on toolchain beta-2024-02-10
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2024-02-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/luoxiaozero/hello-rust
[INFO] finished tweaking git repo https://github.com/luoxiaozero/hello-rust
[INFO] tweaked toml for git repo https://github.com/luoxiaozero/hello-rust written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/luoxiaozero/hello-rust 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" "+beta-2024-02-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-02-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 09c903b1c7675d30ed6ab00e36cd5fd4bc8613412f8bbf346a825717c9fb1b9b
[INFO] running `Command { std: "docker" "start" "-a" "09c903b1c7675d30ed6ab00e36cd5fd4bc8613412f8bbf346a825717c9fb1b9b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "09c903b1c7675d30ed6ab00e36cd5fd4bc8613412f8bbf346a825717c9fb1b9b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "09c903b1c7675d30ed6ab00e36cd5fd4bc8613412f8bbf346a825717c9fb1b9b", kill_on_drop: false }`
[INFO] [stdout] 09c903b1c7675d30ed6ab00e36cd5fd4bc8613412f8bbf346a825717c9fb1b9b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-02-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7467c8b2d5482f1c1e4a24dd02b432dd4d526e753bfff645707690f1b058b434
[INFO] running `Command { std: "docker" "start" "-a" "7467c8b2d5482f1c1e4a24dd02b432dd4d526e753bfff645707690f1b058b434", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.42
[INFO] [stderr]    Compiling quote v1.0.20
[INFO] [stderr]    Compiling unicode-ident v1.0.2
[INFO] [stderr]    Compiling syn v1.0.98
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling futures-core v0.3.25
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling pin-project-lite v0.2.9
[INFO] [stderr]    Compiling futures-io v0.3.25
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling cache-padded v1.2.0
[INFO] [stderr]    Compiling parking v2.0.0
[INFO] [stderr]    Compiling slab v0.4.7
[INFO] [stderr]    Compiling concurrent-queue v1.2.4
[INFO] [stderr]    Compiling waker-fn v1.1.0
[INFO] [stderr]    Compiling fastrand v1.8.0
[INFO] [stderr]    Compiling polling v2.3.0
[INFO] [stderr]    Compiling futures-channel v0.3.25
[INFO] [stderr]    Compiling value-bag v1.0.0-alpha.9
[INFO] [stderr]    Compiling futures-lite v1.12.0
[INFO] [stderr]    Compiling event-listener v2.5.3
[INFO] [stderr]    Compiling futures-task v0.3.25
[INFO] [stderr]    Compiling once_cell v1.15.0
[INFO] [stderr]    Compiling async-io v1.9.0
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.140
[INFO] [stderr]    Compiling futures-sink v0.3.25
[INFO] [stderr]    Compiling async-task v4.3.0
[INFO] [stderr]    Compiling futures-util v0.3.25
[INFO] [stderr]    Compiling socket2 v0.4.7
[INFO] [stderr]    Compiling getrandom v0.2.7
[INFO] [stderr]    Compiling async-channel v1.7.1
[INFO] [stderr]    Compiling serde v1.0.140
[INFO] [stderr]    Compiling crossbeam-utils v0.8.12
[INFO] [stderr]    Compiling atomic-waker v1.0.0
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling async-lock v2.5.0
[INFO] [stderr]    Compiling blocking v1.2.0
[INFO] [stderr]    Compiling async-executor v1.4.1
[INFO] [stderr]    Compiling ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling serde_json v1.0.82
[INFO] [stderr]    Compiling itoa v1.0.2
[INFO] [stderr]    Compiling ryu v1.0.10
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling ctor v0.1.26
[INFO] [stderr]    Compiling futures-macro v0.3.25
[INFO] [stderr]    Compiling kv-log-macro v1.0.7
[INFO] [stderr]    Compiling async-global-executor v2.3.0
[INFO] [stderr]    Compiling async-std v1.12.0
[INFO] [stderr]    Compiling futures-executor v0.3.25
[INFO] [stderr]    Compiling futures v0.3.25
[INFO] [stderr]    Compiling hello_cargo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `dest`
[INFO] [stdout]   --> src/chat/main.rs:38:13
[INFO] [stdout]    |
[INFO] [stdout] 38 |         let dest: Vec<String> = dest.split(',').map(|name| name.trim().to_string()).collect();
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_dest`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `msg`
[INFO] [stdout]   --> src/chat/main.rs:39:13
[INFO] [stdout]    |
[INFO] [stdout] 39 |         let msg: String = msg.to_string();
[INFO] [stdout]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_msg`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Result` is never used
[INFO] [stdout]  --> src/chat/main.rs:9:6
[INFO] [stdout]   |
[INFO] [stdout] 9 | type Result<T> = std::result::Result<T, Box<dyn std::error::Error + Send + Sync>>;
[INFO] [stdout]   |      ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `accept_loop` is never used
[INFO] [stdout]   --> src/chat/main.rs:11:10
[INFO] [stdout]    |
[INFO] [stdout] 11 | async fn accept_loop(addr: impl ToSocketAddrs) -> Result<()> {
[INFO] [stdout]    |          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `connection_loop` is never used
[INFO] [stdout]   --> src/chat/main.rs:22:10
[INFO] [stdout]    |
[INFO] [stdout] 22 | async fn connection_loop(stream: TcpStream) -> Result<()> {
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> src/chat/main.rs:45:4
[INFO] [stdout]    |
[INFO] [stdout] 45 | fn run() -> Result<()> {
[INFO] [stdout]    |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `aa` is never used
[INFO] [stdout]  --> src/deref.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | impl<T> MyBox<T> {
[INFO] [stdout]   | ---------------- method in this implementation
[INFO] [stdout] 6 |     fn aa(self) {
[INFO] [stdout]   |        ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/main.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 39 |     typed_example();
[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] 39 |     let _ = typed_example();
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.56s
[INFO] running `Command { std: "docker" "inspect" "7467c8b2d5482f1c1e4a24dd02b432dd4d526e753bfff645707690f1b058b434", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7467c8b2d5482f1c1e4a24dd02b432dd4d526e753bfff645707690f1b058b434", kill_on_drop: false }`
[INFO] [stdout] 7467c8b2d5482f1c1e4a24dd02b432dd4d526e753bfff645707690f1b058b434
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-02-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 864f6e840533db9e731a32186ee7effb7d45b9ad9fde904bc503203433745438
[INFO] running `Command { std: "docker" "start" "-a" "864f6e840533db9e731a32186ee7effb7d45b9ad9fde904bc503203433745438", kill_on_drop: false }`
[INFO] [stderr]    Compiling hello_cargo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `dest`
[INFO] [stdout]   --> src/chat/main.rs:38:13
[INFO] [stdout]    |
[INFO] [stdout] 38 |         let dest: Vec<String> = dest.split(',').map(|name| name.trim().to_string()).collect();
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_dest`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `msg`
[INFO] [stdout]   --> src/chat/main.rs:39:13
[INFO] [stdout]    |
[INFO] [stdout] 39 |         let msg: String = msg.to_string();
[INFO] [stdout]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_msg`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Result` is never used
[INFO] [stdout]  --> src/chat/main.rs:9:6
[INFO] [stdout]   |
[INFO] [stdout] 9 | type Result<T> = std::result::Result<T, Box<dyn std::error::Error + Send + Sync>>;
[INFO] [stdout]   |      ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `accept_loop` is never used
[INFO] [stdout]   --> src/chat/main.rs:11:10
[INFO] [stdout]    |
[INFO] [stdout] 11 | async fn accept_loop(addr: impl ToSocketAddrs) -> Result<()> {
[INFO] [stdout]    |          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `connection_loop` is never used
[INFO] [stdout]   --> src/chat/main.rs:22:10
[INFO] [stdout]    |
[INFO] [stdout] 22 | async fn connection_loop(stream: TcpStream) -> Result<()> {
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> src/chat/main.rs:45:4
[INFO] [stdout]    |
[INFO] [stdout] 45 | fn run() -> Result<()> {
[INFO] [stdout]    |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/main.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 39 |     typed_example();
[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] 39 |     let _ = typed_example();
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/chat/official.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 |     run();
[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] 22 |     let _ = run();
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.77s
[INFO] running `Command { std: "docker" "inspect" "864f6e840533db9e731a32186ee7effb7d45b9ad9fde904bc503203433745438", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "864f6e840533db9e731a32186ee7effb7d45b9ad9fde904bc503203433745438", kill_on_drop: false }`
[INFO] [stdout] 864f6e840533db9e731a32186ee7effb7d45b9ad9fde904bc503203433745438
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-02-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e9b34f2dbe576b43fef4567133e36de3ba8ae6606aa015e40d0306a8038493a8
[INFO] running `Command { std: "docker" "start" "-a" "e9b34f2dbe576b43fef4567133e36de3ba8ae6606aa015e40d0306a8038493a8", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `dest`
[INFO] [stderr]   --> src/chat/main.rs:38:13
[INFO] [stderr]    |
[INFO] [stderr] 38 |         let dest: Vec<String> = dest.split(',').map(|name| name.trim().to_string()).collect();
[INFO] [stderr]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_dest`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `msg`
[INFO] [stderr]   --> src/chat/main.rs:39:13
[INFO] [stderr]    |
[INFO] [stderr] 39 |         let msg: String = msg.to_string();
[INFO] [stderr]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_msg`
[INFO] [stderr] 
[INFO] [stderr] warning: type alias `Result` is never used
[INFO] [stderr]  --> src/chat/main.rs:9:6
[INFO] [stderr]   |
[INFO] [stderr] 9 | type Result<T> = std::result::Result<T, Box<dyn std::error::Error + Send + Sync>>;
[INFO] [stderr]   |      ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `accept_loop` is never used
[INFO] [stderr]   --> src/chat/main.rs:11:10
[INFO] [stderr]    |
[INFO] [stderr] 11 | async fn accept_loop(addr: impl ToSocketAddrs) -> Result<()> {
[INFO] [stderr]    |          ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `connection_loop` is never used
[INFO] [stderr]   --> src/chat/main.rs:22:10
[INFO] [stderr]    |
[INFO] [stderr] 22 | async fn connection_loop(stream: TcpStream) -> Result<()> {
[INFO] [stderr]    |          ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run` is never used
[INFO] [stderr]   --> src/chat/main.rs:45:4
[INFO] [stderr]    |
[INFO] [stderr] 45 | fn run() -> Result<()> {
[INFO] [stderr]    |    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:39:5
[INFO] [stderr]    |
[INFO] [stderr] 39 |     typed_example();
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 39 |     let _ = typed_example();
[INFO] [stderr]    |     +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/chat/official.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 |     run();
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 22 |     let _ = run();
[INFO] [stderr]    |     +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `hello_cargo` (bin "hello_cargo" test) generated 8 warnings (run `cargo fix --bin "hello_cargo" --tests` to apply 2 suggestions)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/hello_cargo-acafda203745c020)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test deref::main ... ok
[INFO] [stdout] test chat::official::main has been running for over 60 seconds
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "e9b34f2dbe576b43fef4567133e36de3ba8ae6606aa015e40d0306a8038493a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e9b34f2dbe576b43fef4567133e36de3ba8ae6606aa015e40d0306a8038493a8", kill_on_drop: false }`
[INFO] [stdout] e9b34f2dbe576b43fef4567133e36de3ba8ae6606aa015e40d0306a8038493a8
