[INFO] cloning repository https://github.com/g610g/ray-diz
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/g610g/ray-diz" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fg610g%2Fray-diz", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fg610g%2Fray-diz'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6817eb69b9a02f5fd410217fb9a05ddb80313eaa
[INFO] testing g610g/ray-diz against try#a7ce54db9b096bd1098d07c645b489195a667c9f for pr-137940
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fg610g%2Fray-diz" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/g610g/ray-diz on toolchain a7ce54db9b096bd1098d07c645b489195a667c9f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a7ce54db9b096bd1098d07c645b489195a667c9f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/g610g/ray-diz
[INFO] finished tweaking git repo https://github.com/g610g/ray-diz
[INFO] tweaked toml for git repo https://github.com/g610g/ray-diz written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/g610g/ray-diz 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" "+a7ce54db9b096bd1098d07c645b489195a667c9f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+a7ce54db9b096bd1098d07c645b489195a667c9f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7e8a2159928c625fad8c3566baadded732b48d4bf09e7f1a0b31203bcf37fe18
[INFO] running `Command { std: "docker" "start" "-a" "7e8a2159928c625fad8c3566baadded732b48d4bf09e7f1a0b31203bcf37fe18", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7e8a2159928c625fad8c3566baadded732b48d4bf09e7f1a0b31203bcf37fe18", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e8a2159928c625fad8c3566baadded732b48d4bf09e7f1a0b31203bcf37fe18", kill_on_drop: false }`
[INFO] [stdout] 7e8a2159928c625fad8c3566baadded732b48d4bf09e7f1a0b31203bcf37fe18
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+a7ce54db9b096bd1098d07c645b489195a667c9f" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4bb86b73604e5b30a1c42bd877aa3524915fc18ad23e9ddfce5157e22d51cc99
[INFO] running `Command { std: "docker" "start" "-a" "4bb86b73604e5b30a1c42bd877aa3524915fc18ad23e9ddfce5157e22d51cc99", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.83
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling libc v0.2.155
[INFO] [stderr]    Compiling autocfg v1.3.0
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling once_cell v1.19.0
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling smallvec v1.13.2
[INFO] [stderr]    Compiling parking_lot_core v0.9.10
[INFO] [stderr]    Compiling pin-project-lite v0.2.14
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling scopeguard v1.2.0
[INFO] [stderr]    Compiling serde v1.0.202
[INFO] [stderr]    Compiling serde_json v1.0.117
[INFO] [stderr]    Compiling unicode-segmentation v1.11.0
[INFO] [stderr]    Compiling unicode-width v0.1.12
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling regex-syntax v0.8.3
[INFO] [stderr]    Compiling ansi_term v0.12.1
[INFO] [stderr]    Compiling regex-syntax v0.6.29
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling itoa v1.0.11
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling bytes v1.6.0
[INFO] [stderr]    Compiling futures-core v0.3.30
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling iana-time-zone v0.1.60
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling tracing-core v0.1.32
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling ryu v1.0.18
[INFO] [stderr]    Compiling log v0.4.21
[INFO] [stderr]    Compiling thread_local v1.1.8
[INFO] [stderr]    Compiling sharded-slab v0.1.7
[INFO] [stderr]    Compiling lock_api v0.4.12
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling hashbrown v0.14.5
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling tracing-log v0.1.4
[INFO] [stderr]    Compiling mio v0.8.11
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling signal-hook-registry v1.4.2
[INFO] [stderr]    Compiling socket2 v0.5.7
[INFO] [stderr]    Compiling syn v2.0.65
[INFO] [stderr]    Compiling regex-automata v0.4.6
[INFO] [stderr]    Compiling num_cpus v1.16.0
[INFO] [stderr]    Compiling parking_lot v0.12.2
[INFO] [stderr]    Compiling chrono v0.4.38
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling atoi v0.3.3
[INFO] [stderr]    Compiling dashmap v5.5.3
[INFO] [stderr]    Compiling regex-automata v0.1.10
[INFO] [stderr]    Compiling matchers v0.0.1
[INFO] [stderr]    Compiling regex v1.10.4
[INFO] [stderr]    Compiling tracing-serde v0.1.3
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]    Compiling tracing-attributes v0.1.27
[INFO] [stderr]    Compiling pin-project-internal v1.1.5
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]    Compiling async-stream-impl v0.3.5
[INFO] [stderr]    Compiling structopt v0.3.26
[INFO] [stderr]    Compiling async-stream v0.3.5
[INFO] [stderr]    Compiling tokio v1.37.0
[INFO] [stderr]    Compiling tracing v0.1.40
[INFO] [stderr]    Compiling pin-project v1.1.5
[INFO] [stderr]    Compiling tracing-subscriber v0.2.25
[INFO] [stderr]    Compiling tracing-futures v0.2.5
[INFO] [stderr]    Compiling tokio-stream v0.1.15
[INFO] [stderr]    Compiling mini-redis v0.4.1
[INFO] [stderr]    Compiling redis-client v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `val`
[INFO] [stdout]   --> src/connection.rs:48:28
[INFO] [stdout]    |
[INFO] [stdout] 48 |             Frame::Integer(val) => {
[INFO] [stdout]    |                            ^^^ help: if this is intentional, prefix it with an underscore: `_val`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]   --> src/connection.rs:55:21
[INFO] [stdout]    |
[INFO] [stdout] 55 |                 let len = val.len();
[INFO] [stdout]    |                     ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Connection` is never constructed
[INFO] [stdout]   --> src/connection.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | struct Connection {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `read_frame`, `write_frame`, and `parse_frame` are never used
[INFO] [stdout]   --> src/connection.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl Connection {
[INFO] [stdout]    | --------------- associated items in this implementation
[INFO] [stdout] 15 |     pub fn new(stream: TcpStream) -> Connection {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 21 |     pub async fn read_frame(&mut self) -> Result<Option<Frame>> {
[INFO] [stdout]    |                  ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 36 |     pub async fn write_frame(&mut self, frame: &Frame) -> io::Result<()> {
[INFO] [stdout]    |                  ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 65 |     fn parse_frame(&mut self) -> Result<Option<Frame>> {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/connection.rs:62:9
[INFO] [stdout]    |
[INFO] [stdout] 62 |         self.stream.flush().await;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 62 |         let _ = self.stream.flush().await;
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Result`
[INFO] [stdout]  --> src/bin/server.rs:3:37
[INFO] [stdout]   |
[INFO] [stdout] 3 | use mini_redis::{Connection, Frame, Result};
[INFO] [stdout]   |                                     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]  --> src/bin/server.rs:7:25
[INFO] [stdout]   |
[INFO] [stdout] 7 | use tokio::sync::mpsc::{self, Sender};
[INFO] [stdout]   |                         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `self` and `task`
[INFO] [stdout]  --> src/bin/my_tokio.rs:3:14
[INFO] [stdout]   |
[INFO] [stdout] 3 |     future::{self, Future},
[INFO] [stdout]   |              ^^^^
[INFO] [stdout] 4 |     pin::Pin,
[INFO] [stdout] 5 |     task,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MyTokio` is never constructed
[INFO] [stdout]  --> src/bin/my_tokio.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | struct MyTokio {
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Task` is never used
[INFO] [stdout]   --> src/bin/my_tokio.rs:12:6
[INFO] [stdout]    |
[INFO] [stdout] 12 | type Task = Pin<Box<dyn Future<Output = ()> + Send>>;
[INFO] [stdout]    |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `spawn` are never used
[INFO] [stdout]   --> src/bin/my_tokio.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl MyTokio {
[INFO] [stdout]    | ------------ associated items in this implementation
[INFO] [stdout] 14 |     fn new() -> MyTokio {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 19 |     fn spawn<F>(&mut self, future: F)
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/bin/echo-server.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |     let value: i32 = gives_default();
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `dashmap::mapref::one`
[INFO] [stdout]  --> src/bin/client.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use dashmap::mapref::one;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `one_second` is never used
[INFO] [stdout]   --> src/bin/server.rs:15:10
[INFO] [stdout]    |
[INFO] [stdout] 15 | async fn one_second() {
[INFO] [stdout]    |          ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `five_second` is never used
[INFO] [stdout]   --> src/bin/server.rs:19:10
[INFO] [stdout]    |
[INFO] [stdout] 19 | async fn five_second() {
[INFO] [stdout]    |          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `two_second` is never used
[INFO] [stdout]   --> src/bin/server.rs:23:10
[INFO] [stdout]    |
[INFO] [stdout] 23 | async fn two_second() {
[INFO] [stdout]    |          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `wait_and_print` is never used
[INFO] [stdout]   --> src/bin/server.rs:27:10
[INFO] [stdout]    |
[INFO] [stdout] 27 | async fn wait_and_print() {
[INFO] [stdout]    |          ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_concurrency` is never used
[INFO] [stdout]   --> src/bin/server.rs:31:10
[INFO] [stdout]    |
[INFO] [stdout] 31 | async fn test_concurrency(tx: Sender<String>) {
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `wait` is never used
[INFO] [stdout]   --> src/bin/server.rs:97:10
[INFO] [stdout]    |
[INFO] [stdout] 97 | async fn wait() {
[INFO] [stdout]    |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/bin/server.rs:37:9
[INFO] [stdout]    |
[INFO] [stdout] 37 |         tx.send("Five Seconds".to_string()).await;
[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] 37 |         let _ = tx.send("Five Seconds".to_string()).await;
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/bin/server.rs:42:9
[INFO] [stdout]    |
[INFO] [stdout] 42 |         tx2.send("Two Seconds".to_string()).await;
[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] 42 |         let _ = tx2.send("Two Seconds".to_string()).await;
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/bin/server.rs:51:9
[INFO] [stdout]    |
[INFO] [stdout] 51 |         task.await;
[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] 51 |         let _ = task.await;
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Get` is never constructed
[INFO] [stdout]  --> src/bin/client.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | enum Command {
[INFO] [stdout]   |      ------- variant in this enum
[INFO] [stdout] 8 |     Get {
[INFO] [stdout]   |     ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Command` 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] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 24.85s
[INFO] running `Command { std: "docker" "inspect" "4bb86b73604e5b30a1c42bd877aa3524915fc18ad23e9ddfce5157e22d51cc99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4bb86b73604e5b30a1c42bd877aa3524915fc18ad23e9ddfce5157e22d51cc99", kill_on_drop: false }`
[INFO] [stdout] 4bb86b73604e5b30a1c42bd877aa3524915fc18ad23e9ddfce5157e22d51cc99
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+a7ce54db9b096bd1098d07c645b489195a667c9f" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8a88b693c6e6503f9c8a8e33ba089a12dc416e0c60772f9a1debbeea647c72fb
[INFO] running `Command { std: "docker" "start" "-a" "8a88b693c6e6503f9c8a8e33ba089a12dc416e0c60772f9a1debbeea647c72fb", kill_on_drop: false }`
[INFO] [stderr]    Compiling redis-client v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `val`
[INFO] [stdout]   --> src/connection.rs:48:28
[INFO] [stdout]    |
[INFO] [stdout] 48 |             Frame::Integer(val) => {
[INFO] [stdout]    |                            ^^^ help: if this is intentional, prefix it with an underscore: `_val`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]   --> src/connection.rs:55:21
[INFO] [stdout]    |
[INFO] [stdout] 55 |                 let len = val.len();
[INFO] [stdout]    |                     ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Connection` is never constructed
[INFO] [stdout]   --> src/connection.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | struct Connection {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `read_frame`, `write_frame`, and `parse_frame` are never used
[INFO] [stdout]   --> src/connection.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl Connection {
[INFO] [stdout]    | --------------- associated items in this implementation
[INFO] [stdout] 15 |     pub fn new(stream: TcpStream) -> Connection {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 21 |     pub async fn read_frame(&mut self) -> Result<Option<Frame>> {
[INFO] [stdout]    |                  ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 36 |     pub async fn write_frame(&mut self, frame: &Frame) -> io::Result<()> {
[INFO] [stdout]    |                  ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 65 |     fn parse_frame(&mut self) -> Result<Option<Frame>> {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/connection.rs:62:9
[INFO] [stdout]    |
[INFO] [stdout] 62 |         self.stream.flush().await;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 62 |         let _ = self.stream.flush().await;
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `dashmap::mapref::one`
[INFO] [stdout]  --> src/bin/client.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use dashmap::mapref::one;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `self` and `task`
[INFO] [stdout]  --> src/bin/my_tokio.rs:3:14
[INFO] [stdout]   |
[INFO] [stdout] 3 |     future::{self, Future},
[INFO] [stdout]   |              ^^^^
[INFO] [stdout] 4 |     pin::Pin,
[INFO] [stdout] 5 |     task,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MyTokio` is never constructed
[INFO] [stdout]  --> src/bin/my_tokio.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | struct MyTokio {
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Task` is never used
[INFO] [stdout]   --> src/bin/my_tokio.rs:12:6
[INFO] [stdout]    |
[INFO] [stdout] 12 | type Task = Pin<Box<dyn Future<Output = ()> + Send>>;
[INFO] [stdout]    |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `spawn` are never used
[INFO] [stdout]   --> src/bin/my_tokio.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl MyTokio {
[INFO] [stdout]    | ------------ associated items in this implementation
[INFO] [stdout] 14 |     fn new() -> MyTokio {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 19 |     fn spawn<F>(&mut self, future: F)
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Result`
[INFO] [stdout]  --> src/bin/server.rs:3:37
[INFO] [stdout]   |
[INFO] [stdout] 3 | use mini_redis::{Connection, Frame, Result};
[INFO] [stdout]   |                                     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]  --> src/bin/server.rs:7:25
[INFO] [stdout]   |
[INFO] [stdout] 7 | use tokio::sync::mpsc::{self, Sender};
[INFO] [stdout]   |                         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `val`
[INFO] [stdout]   --> src/connection.rs:48:28
[INFO] [stdout]    |
[INFO] [stdout] 48 |             Frame::Integer(val) => {
[INFO] [stdout]    |                            ^^^ help: if this is intentional, prefix it with an underscore: `_val`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]   --> src/connection.rs:55:21
[INFO] [stdout]    |
[INFO] [stdout] 55 |                 let len = val.len();
[INFO] [stdout]    |                     ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Connection` is never constructed
[INFO] [stdout]   --> src/connection.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | struct Connection {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `read_frame`, `write_frame`, and `parse_frame` are never used
[INFO] [stdout]   --> src/connection.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl Connection {
[INFO] [stdout]    | --------------- associated items in this implementation
[INFO] [stdout] 15 |     pub fn new(stream: TcpStream) -> Connection {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 21 |     pub async fn read_frame(&mut self) -> Result<Option<Frame>> {
[INFO] [stdout]    |                  ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 36 |     pub async fn write_frame(&mut self, frame: &Frame) -> io::Result<()> {
[INFO] [stdout]    |                  ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 65 |     fn parse_frame(&mut self) -> Result<Option<Frame>> {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/connection.rs:62:9
[INFO] [stdout]    |
[INFO] [stdout] 62 |         self.stream.flush().await;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 62 |         let _ = self.stream.flush().await;
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/bin/echo-server.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |     let value: i32 = gives_default();
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Get` is never constructed
[INFO] [stdout]  --> src/bin/client.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | enum Command {
[INFO] [stdout]   |      ------- variant in this enum
[INFO] [stdout] 8 |     Get {
[INFO] [stdout]   |     ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Command` 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] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `one_second` is never used
[INFO] [stdout]   --> src/bin/server.rs:15:10
[INFO] [stdout]    |
[INFO] [stdout] 15 | async fn one_second() {
[INFO] [stdout]    |          ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `five_second` is never used
[INFO] [stdout]   --> src/bin/server.rs:19:10
[INFO] [stdout]    |
[INFO] [stdout] 19 | async fn five_second() {
[INFO] [stdout]    |          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `two_second` is never used
[INFO] [stdout]   --> src/bin/server.rs:23:10
[INFO] [stdout]    |
[INFO] [stdout] 23 | async fn two_second() {
[INFO] [stdout]    |          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `wait_and_print` is never used
[INFO] [stdout]   --> src/bin/server.rs:27:10
[INFO] [stdout]    |
[INFO] [stdout] 27 | async fn wait_and_print() {
[INFO] [stdout]    |          ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_concurrency` is never used
[INFO] [stdout]   --> src/bin/server.rs:31:10
[INFO] [stdout]    |
[INFO] [stdout] 31 | async fn test_concurrency(tx: Sender<String>) {
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `wait` is never used
[INFO] [stdout]   --> src/bin/server.rs:97:10
[INFO] [stdout]    |
[INFO] [stdout] 97 | async fn wait() {
[INFO] [stdout]    |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/bin/server.rs:37:9
[INFO] [stdout]    |
[INFO] [stdout] 37 |         tx.send("Five Seconds".to_string()).await;
[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] 37 |         let _ = tx.send("Five Seconds".to_string()).await;
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/bin/server.rs:42:9
[INFO] [stdout]    |
[INFO] [stdout] 42 |         tx2.send("Two Seconds".to_string()).await;
[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] 42 |         let _ = tx2.send("Two Seconds".to_string()).await;
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/bin/server.rs:51:9
[INFO] [stdout]    |
[INFO] [stdout] 51 |         task.await;
[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] 51 |         let _ = task.await;
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.34s
[INFO] running `Command { std: "docker" "inspect" "8a88b693c6e6503f9c8a8e33ba089a12dc416e0c60772f9a1debbeea647c72fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a88b693c6e6503f9c8a8e33ba089a12dc416e0c60772f9a1debbeea647c72fb", kill_on_drop: false }`
[INFO] [stdout] 8a88b693c6e6503f9c8a8e33ba089a12dc416e0c60772f9a1debbeea647c72fb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+a7ce54db9b096bd1098d07c645b489195a667c9f" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 898c603ba15f08683a9f0f946e51b29926a46c87208720e6d0a3200a8cba78c3
[INFO] running `Command { std: "docker" "start" "-a" "898c603ba15f08683a9f0f946e51b29926a46c87208720e6d0a3200a8cba78c3", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `val`
[INFO] [stderr]   --> src/connection.rs:48:28
[INFO] [stderr]    |
[INFO] [stderr] 48 |             Frame::Integer(val) => {
[INFO] [stderr]    |                            ^^^ help: if this is intentional, prefix it with an underscore: `_val`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `len`
[INFO] [stderr]   --> src/connection.rs:55:21
[INFO] [stderr]    |
[INFO] [stderr] 55 |                 let len = val.len();
[INFO] [stderr]    |                     ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Connection` is never constructed
[INFO] [stderr]   --> src/connection.rs:10:8
[INFO] [stderr]    |
[INFO] [stderr] 10 | struct Connection {
[INFO] [stderr]    |        ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `new`, `read_frame`, `write_frame`, and `parse_frame` are never used
[INFO] [stderr]   --> src/connection.rs:15:12
[INFO] [stderr]    |
[INFO] [stderr] 14 | impl Connection {
[INFO] [stderr]    | --------------- associated items in this implementation
[INFO] [stderr] 15 |     pub fn new(stream: TcpStream) -> Connection {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] ...
[INFO] [stderr] 21 |     pub async fn read_frame(&mut self) -> Result<Option<Frame>> {
[INFO] [stderr]    |                  ^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 36 |     pub async fn write_frame(&mut self, frame: &Frame) -> io::Result<()> {
[INFO] [stderr]    |                  ^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 65 |     fn parse_frame(&mut self) -> Result<Option<Frame>> {
[INFO] [stderr]    |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/connection.rs:62:9
[INFO] [stderr]    |
[INFO] [stderr] 62 |         self.stream.flush().await;
[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] 62 |         let _ = self.stream.flush().await;
[INFO] [stderr]    |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `redis-client` (lib) generated 5 warnings
[INFO] [stderr] warning: unused import: `dashmap::mapref::one`
[INFO] [stderr]  --> src/bin/client.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use dashmap::mapref::one;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant `Get` is never constructed
[INFO] [stderr]  --> src/bin/client.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | enum Command {
[INFO] [stderr]   |      ------- variant in this enum
[INFO] [stderr] 8 |     Get {
[INFO] [stderr]   |     ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `Command` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]   --> src/bin/echo-server.rs:13:9
[INFO] [stderr]    |
[INFO] [stderr] 13 |     let value: i32 = gives_default();
[INFO] [stderr]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Result`
[INFO] [stderr]  --> src/bin/server.rs:3:37
[INFO] [stderr]   |
[INFO] [stderr] 3 | use mini_redis::{Connection, Frame, Result};
[INFO] [stderr]   |                                     ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `self`
[INFO] [stderr]  --> src/bin/server.rs:7:25
[INFO] [stderr]   |
[INFO] [stderr] 7 | use tokio::sync::mpsc::{self, Sender};
[INFO] [stderr]   |                         ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `one_second` is never used
[INFO] [stderr]   --> src/bin/server.rs:15:10
[INFO] [stderr]    |
[INFO] [stderr] 15 | async fn one_second() {
[INFO] [stderr]    |          ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `five_second` is never used
[INFO] [stderr]   --> src/bin/server.rs:19:10
[INFO] [stderr]    |
[INFO] [stderr] 19 | async fn five_second() {
[INFO] [stderr]    |          ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `two_second` is never used
[INFO] [stderr]   --> src/bin/server.rs:23:10
[INFO] [stderr]    |
[INFO] [stderr] 23 | async fn two_second() {
[INFO] [stderr]    |          ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `wait_and_print` is never used
[INFO] [stderr]   --> src/bin/server.rs:27:10
[INFO] [stderr]    |
[INFO] [stderr] 27 | async fn wait_and_print() {
[INFO] [stderr]    |          ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `test_concurrency` is never used
[INFO] [stderr]   --> src/bin/server.rs:31:10
[INFO] [stderr]    |
[INFO] [stderr] 31 | async fn test_concurrency(tx: Sender<String>) {
[INFO] [stderr]    |          ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `wait` is never used
[INFO] [stderr]   --> src/bin/server.rs:97:10
[INFO] [stderr]    |
[INFO] [stderr] 97 | async fn wait() {
[INFO] [stderr]    |          ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/bin/server.rs:37:9
[INFO] [stderr]    |
[INFO] [stderr] 37 |         tx.send("Five Seconds".to_string()).await;
[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] 37 |         let _ = tx.send("Five Seconds".to_string()).await;
[INFO] [stderr]    |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/bin/server.rs:42:9
[INFO] [stderr]    |
[INFO] [stderr] 42 |         tx2.send("Two Seconds".to_string()).await;
[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] 42 |         let _ = tx2.send("Two Seconds".to_string()).await;
[INFO] [stderr]    |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/bin/server.rs:51:9
[INFO] [stderr]    |
[INFO] [stderr] 51 |         task.await;
[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] 51 |         let _ = task.await;
[INFO] [stderr]    |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `self` and `task`
[INFO] [stderr]  --> src/bin/my_tokio.rs:3:14
[INFO] [stderr]   |
[INFO] [stderr] 3 |     future::{self, Future},
[INFO] [stderr]   |              ^^^^
[INFO] [stderr] 4 |     pin::Pin,
[INFO] [stderr] 5 |     task,
[INFO] [stderr]   |     ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct `MyTokio` is never constructed
[INFO] [stderr]  --> src/bin/my_tokio.rs:9:8
[INFO] [stderr]   |
[INFO] [stderr] 9 | struct MyTokio {
[INFO] [stderr]   |        ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type alias `Task` is never used
[INFO] [stderr]   --> src/bin/my_tokio.rs:12:6
[INFO] [stderr]    |
[INFO] [stderr] 12 | type Task = Pin<Box<dyn Future<Output = ()> + Send>>;
[INFO] [stderr]    |      ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `new` and `spawn` are never used
[INFO] [stderr]   --> src/bin/my_tokio.rs:14:8
[INFO] [stderr]    |
[INFO] [stderr] 13 | impl MyTokio {
[INFO] [stderr]    | ------------ associated items in this implementation
[INFO] [stderr] 14 |     fn new() -> MyTokio {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] ...
[INFO] [stderr] 19 |     fn spawn<F>(&mut self, future: F)
[INFO] [stderr]    |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `redis-client` (bin "client" test) generated 2 warnings (run `cargo fix --bin "client" --tests` to apply 1 suggestion)
[INFO] [stderr] warning: `redis-client` (bin "echo-server" test) generated 1 warning
[INFO] [stderr] warning: `redis-client` (bin "server" test) generated 11 warnings (run `cargo fix --bin "server" --tests` to apply 2 suggestions)
[INFO] [stderr] warning: `redis-client` (bin "my_tokio" test) generated 4 warnings (run `cargo fix --bin "my_tokio" --tests` to apply 1 suggestion)
[INFO] [stderr] warning: `redis-client` (lib test) generated 5 warnings (5 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/redis_client-322df7b1b0b901cb)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests src/bin/chat-server.rs (/opt/rustwide/target/debug/deps/chat_server-fcdb29936fb11109)
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin/client.rs (/opt/rustwide/target/debug/deps/client-c8d7f354d23034c9)
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin/dump.rs (/opt/rustwide/target/debug/deps/dump-acbe41ce2792e0f1)
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin/echo-server.rs (/opt/rustwide/target/debug/deps/echo_server-3c0e105b355b53c6)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin/my_tokio.rs (/opt/rustwide/target/debug/deps/my_tokio-e0248567efb2d857)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin/server.rs (/opt/rustwide/target/debug/deps/server-49a956712e4068ab)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests redis_client
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "898c603ba15f08683a9f0f946e51b29926a46c87208720e6d0a3200a8cba78c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "898c603ba15f08683a9f0f946e51b29926a46c87208720e6d0a3200a8cba78c3", kill_on_drop: false }`
[INFO] [stdout] 898c603ba15f08683a9f0f946e51b29926a46c87208720e6d0a3200a8cba78c3