[INFO] cloning repository https://github.com/woodrow-wong/SomeRedisPracitce
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/woodrow-wong/SomeRedisPracitce" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwoodrow-wong%2FSomeRedisPracitce", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwoodrow-wong%2FSomeRedisPracitce'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 969217bc7c106d79617e464b7854655ead7e7674
[INFO] checking woodrow-wong/SomeRedisPracitce against master#2a023bf80a6fbd6a06d5460a34eb247b986286ed for pr-143764
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwoodrow-wong%2FSomeRedisPracitce" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/woodrow-wong/SomeRedisPracitce
[INFO] removed 0 missing examples
[INFO] finished tweaking git repo https://github.com/woodrow-wong/SomeRedisPracitce
[INFO] tweaked toml for git repo https://github.com/woodrow-wong/SomeRedisPracitce written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/woodrow-wong/SomeRedisPracitce on toolchain 2a023bf80a6fbd6a06d5460a34eb247b986286ed
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2a023bf80a6fbd6a06d5460a34eb247b986286ed" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/woodrow-wong/SomeRedisPracitce already has a lockfile, it will not be regenerated
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[INFO] [stdout] warning: unused import: `tokio::io::AsyncWriteExt`
[INFO] [stdout]  --> src/bin/select_try3.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use tokio::io::AsyncWriteExt;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tokio::net::TcpStream`
[INFO] [stdout]  --> src/bin/select_try3.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use tokio::net::TcpStream;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `oneshot`
[INFO] [stdout]  --> src/bin/select_try3.rs:3:25
[INFO] [stdout]   |
[INFO] [stdout] 3 | use tokio::sync::{mpsc, oneshot};
[INFO] [stdout]   |                         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io`
[INFO] [stdout]  --> src/bin/select_try3.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::io;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::net::SocketAddr`
[INFO] [stdout]  --> src/bin/select_try3.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::net::SocketAddr;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `AsyncReadExt` and `AsyncWriteExt`
[INFO] [stdout]  --> src/bin/async_rw.rs:2:23
[INFO] [stdout]   |
[INFO] [stdout] 2 | use tokio::io::{self, AsyncReadExt, AsyncWriteExt};
[INFO] [stdout]   |                       ^^^^^^^^^^^^  ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `TcpListener` and `TcpStream`
[INFO] [stdout]  --> src/bin/select_try2.rs:1:18
[INFO] [stdout]   |
[INFO] [stdout] 1 | use tokio::net::{TcpListener, TcpStream};
[INFO] [stdout]   |                  ^^^^^^^^^^^  ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `oneshot`
[INFO] [stdout]  --> src/bin/select_try2.rs:2:25
[INFO] [stdout]   |
[INFO] [stdout] 2 | use tokio::sync::{mpsc, oneshot};
[INFO] [stdout]   |                         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `io`
[INFO] [stdout]  --> src/bin/select_try2.rs:3:11
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::{io};
[INFO] [stdout]   |           ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/select_try2.rs:45:10
[INFO] [stdout]    |
[INFO] [stdout] 45 |     let (mut tx1, mut rx1) = mpsc::channel(128);
[INFO] [stdout]    |          ----^^^
[INFO] [stdout]    |          |
[INFO] [stdout]    |          help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/select_try2.rs:46:10
[INFO] [stdout]    |
[INFO] [stdout] 46 |     let (mut tx2, mut rx2) = mpsc::channel(128);
[INFO] [stdout]    |          ----^^^
[INFO] [stdout]    |          |
[INFO] [stdout]    |          help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::VecDeque`
[INFO] [stdout]  --> src/bin/xiaotokio.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::VecDeque;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `when`
[INFO] [stdout]    --> src/bin/xiaotokio.rs:134:13
[INFO] [stdout]     |
[INFO] [stdout] 134 |         let when = Instant::now() + Duration::from_millis(10);
[INFO] [stdout]     |             ^^^^ help: if this is intentional, prefix it with an underscore: `_when`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/bin/xiaotokio.rs:131:9
[INFO] [stdout]     |
[INFO] [stdout] 131 |     let mut mini_tokio = MiniTokio::new();
[INFO] [stdout]     |         ----^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Delay` is never constructed
[INFO] [stdout]   --> src/bin/xiaotokio.rs:51:8
[INFO] [stdout]    |
[INFO] [stdout] 51 | struct Delay {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `delay` is never used
[INFO] [stdout]    --> src/bin/xiaotokio.rs:110:10
[INFO] [stdout]     |
[INFO] [stdout] 110 | async fn delay(dur: Duration) {
[INFO] [stdout]     |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/bin/lifetime_try.rs:593:8
[INFO] [stdout]     |
[INFO] [stdout] 593 |     if (item == b' ') {
[INFO] [stdout]     |        ^            ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 593 -     if (item == b' ') {
[INFO] [stdout] 593 +     if item == b' ' {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/bin/xiaotokio.rs:161:9
[INFO] [stdout]     |
[INFO] [stdout] 161 |         self.executor.send(self.clone());
[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] 161 |         let _ = self.executor.send(self.clone());
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `TcpListener` and `TcpStream`
[INFO] [stdout]  --> src/bin/select_try2.rs:1:18
[INFO] [stdout]   |
[INFO] [stdout] 1 | use tokio::net::{TcpListener, TcpStream};
[INFO] [stdout]   |                  ^^^^^^^^^^^  ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `oneshot`
[INFO] [stdout]  --> src/bin/select_try2.rs:2:25
[INFO] [stdout]   |
[INFO] [stdout] 2 | use tokio::sync::{mpsc, oneshot};
[INFO] [stdout]   |                         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `io`
[INFO] [stdout]  --> src/bin/select_try2.rs:3:11
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::{io};
[INFO] [stdout]   |           ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/select_try2.rs:45:10
[INFO] [stdout]    |
[INFO] [stdout] 45 |     let (mut tx1, mut rx1) = mpsc::channel(128);
[INFO] [stdout]    |          ----^^^
[INFO] [stdout]    |          |
[INFO] [stdout]    |          help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/select_try2.rs:46:10
[INFO] [stdout]    |
[INFO] [stdout] 46 |     let (mut tx2, mut rx2) = mpsc::channel(128);
[INFO] [stdout]    |          ----^^^
[INFO] [stdout]    |          |
[INFO] [stdout]    |          help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/bin/lifetime_try.rs:593:8
[INFO] [stdout]     |
[INFO] [stdout] 593 |     if (item == b' ') {
[INFO] [stdout]     |        ^            ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 593 -     if (item == b' ') {
[INFO] [stdout] 593 +     if item == b' ' {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]   --> src/bin/lifetime_try.rs:86:9
[INFO] [stdout]    |
[INFO] [stdout] 86 |     let data = WithDrop("第二个数据".to_string());
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `owned_vector`
[INFO] [stdout]    --> src/bin/lifetime_try.rs:129:9
[INFO] [stdout]     |
[INFO] [stdout] 129 |     let owned_vector: Vec<i32> = vec![1, 2, 3];  // Vec<i32>: 'static
[INFO] [stdout]     |         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_owned_vector`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `string_ref`
[INFO] [stdout]    --> src/bin/lifetime_try.rs:165:9
[INFO] [stdout]     |
[INFO] [stdout] 165 |     let string_ref = &owned_string;
[INFO] [stdout]     |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_string_ref`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `another_ref`
[INFO] [stdout]    --> src/bin/lifetime_try.rs:216:9
[INFO] [stdout]     |
[INFO] [stdout] 216 |     let another_ref = ref_var;  // another_ref也指向original
[INFO] [stdout]     |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_another_ref`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `vec`
[INFO] [stdout]    --> src/bin/lifetime_try.rs:256:9
[INFO] [stdout]     |
[INFO] [stdout] 256 |     let vec: Vec<i32> = vec![1, 2, 3]; // Vec<i32>: 'static √
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_vec`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `string_ref`
[INFO] [stdout]    --> src/bin/lifetime_try.rs:270:11
[INFO] [stdout]     |
[INFO] [stdout] 270 |       let string_ref = &local_string;  // 注意: string_ref类型是&String，有非静态生命周期
[INFO] [stdout]     |           ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_string_ref`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/select_try4.rs:18:10
[INFO] [stdout]    |
[INFO] [stdout] 18 |     let (mut tx, mut rx) = tokio::sync::mpsc::channel(128);
[INFO] [stdout]    |          ----^^
[INFO] [stdout]    |          |
[INFO] [stdout]    |          help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `static_ref_only` is never used
[INFO] [stdout]    --> src/bin/lifetime_try.rs:562:4
[INFO] [stdout]     |
[INFO] [stdout] 562 | fn static_ref_only(t: &'static str) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `first_word` is never used
[INFO] [stdout]    --> src/bin/lifetime_try.rs:589:4
[INFO] [stdout]     |
[INFO] [stdout] 589 | fn first_word(s: &str) -> &str {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/select_try4.rs:18:10
[INFO] [stdout]    |
[INFO] [stdout] 18 |     let (mut tx, mut rx) = tokio::sync::mpsc::channel(128);
[INFO] [stdout]    |          ----^^
[INFO] [stdout]    |          |
[INFO] [stdout]    |          help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]   --> src/bin/lifetime_try.rs:86:9
[INFO] [stdout]    |
[INFO] [stdout] 86 |     let data = WithDrop("第二个数据".to_string());
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `owned_vector`
[INFO] [stdout]    --> src/bin/lifetime_try.rs:129:9
[INFO] [stdout]     |
[INFO] [stdout] 129 |     let owned_vector: Vec<i32> = vec![1, 2, 3];  // Vec<i32>: 'static
[INFO] [stdout]     |         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_owned_vector`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `string_ref`
[INFO] [stdout]    --> src/bin/lifetime_try.rs:165:9
[INFO] [stdout]     |
[INFO] [stdout] 165 |     let string_ref = &owned_string;
[INFO] [stdout]     |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_string_ref`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `another_ref`
[INFO] [stdout]    --> src/bin/lifetime_try.rs:216:9
[INFO] [stdout]     |
[INFO] [stdout] 216 |     let another_ref = ref_var;  // another_ref也指向original
[INFO] [stdout]     |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_another_ref`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `vec`
[INFO] [stdout]    --> src/bin/lifetime_try.rs:256:9
[INFO] [stdout]     |
[INFO] [stdout] 256 |     let vec: Vec<i32> = vec![1, 2, 3]; // Vec<i32>: 'static √
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_vec`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `string_ref`
[INFO] [stdout]    --> src/bin/lifetime_try.rs:270:11
[INFO] [stdout]     |
[INFO] [stdout] 270 |       let string_ref = &local_string;  // 注意: string_ref类型是&String，有非静态生命周期
[INFO] [stdout]     |           ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_string_ref`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::VecDeque`
[INFO] [stdout]  --> src/bin/xiaotokio.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::VecDeque;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tokio::io::AsyncWriteExt`
[INFO] [stdout]  --> src/bin/select_try3.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use tokio::io::AsyncWriteExt;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tokio::net::TcpStream`
[INFO] [stdout]  --> src/bin/select_try3.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use tokio::net::TcpStream;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `oneshot`
[INFO] [stdout]  --> src/bin/select_try3.rs:3:25
[INFO] [stdout]   |
[INFO] [stdout] 3 | use tokio::sync::{mpsc, oneshot};
[INFO] [stdout]   |                         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io`
[INFO] [stdout]  --> src/bin/select_try3.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::io;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::net::SocketAddr`
[INFO] [stdout]  --> src/bin/select_try3.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::net::SocketAddr;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `AsyncReadExt` and `AsyncWriteExt`
[INFO] [stdout]  --> src/bin/async_rw.rs:2:23
[INFO] [stdout]   |
[INFO] [stdout] 2 | use tokio::io::{self, AsyncReadExt, AsyncWriteExt};
[INFO] [stdout]   |                       ^^^^^^^^^^^^  ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `static_ref_only` is never used
[INFO] [stdout]    --> src/bin/lifetime_try.rs:562:4
[INFO] [stdout]     |
[INFO] [stdout] 562 | fn static_ref_only(t: &'static str) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `first_word` is never used
[INFO] [stdout]    --> src/bin/lifetime_try.rs:589:4
[INFO] [stdout]     |
[INFO] [stdout] 589 | fn first_word(s: &str) -> &str {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `when`
[INFO] [stdout]    --> src/bin/xiaotokio.rs:134:13
[INFO] [stdout]     |
[INFO] [stdout] 134 |         let when = Instant::now() + Duration::from_millis(10);
[INFO] [stdout]     |             ^^^^ help: if this is intentional, prefix it with an underscore: `_when`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/bin/xiaotokio.rs:131:9
[INFO] [stdout]     |
[INFO] [stdout] 131 |     let mut mini_tokio = MiniTokio::new();
[INFO] [stdout]     |         ----^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Delay` is never constructed
[INFO] [stdout]   --> src/bin/xiaotokio.rs:51:8
[INFO] [stdout]    |
[INFO] [stdout] 51 | struct Delay {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `delay` is never used
[INFO] [stdout]    --> src/bin/xiaotokio.rs:110:10
[INFO] [stdout]     |
[INFO] [stdout] 110 | async fn delay(dur: Duration) {
[INFO] [stdout]     |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/bin/xiaotokio.rs:161:9
[INFO] [stdout]     |
[INFO] [stdout] 161 |         self.executor.send(self.clone());
[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] 161 |         let _ = self.executor.send(self.clone());
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 20.27s
[INFO] running `Command { std: "docker" "inspect" "acfe1f2a1780cdfe59a49238115d21e1ff3290fb46c58f16e70f870d65782b8b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "acfe1f2a1780cdfe59a49238115d21e1ff3290fb46c58f16e70f870d65782b8b", kill_on_drop: false }`
[INFO] [stdout] acfe1f2a1780cdfe59a49238115d21e1ff3290fb46c58f16e70f870d65782b8b
