[INFO] cloning repository https://github.com/chinaxxren/learning
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/chinaxxren/learning" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchinaxxren%2Flearning", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchinaxxren%2Flearning'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4d038113de5992f0338a1f95318a9787522def3c
[INFO] checking chinaxxren/learning against try#a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d for pr-145342-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchinaxxren%2Flearning" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/chinaxxren/learning
[INFO] finished tweaking git repo https://github.com/chinaxxren/learning
[INFO] tweaked toml for git repo https://github.com/chinaxxren/learning written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/chinaxxren/learning on toolchain a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/chinaxxren/learning 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" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
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[INFO] running `Command { std: "docker" "inspect" "f74a1d5f052bd4e5da588d6ffe0cd68b31782717697870c85ac9b12fb44dd9f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f74a1d5f052bd4e5da588d6ffe0cd68b31782717697870c85ac9b12fb44dd9f3", kill_on_drop: false }`
[INFO] [stdout] f74a1d5f052bd4e5da588d6ffe0cd68b31782717697870c85ac9b12fb44dd9f3
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[INFO] [stdout] 788c84e562a2ccd69217191ae3e14bfe6983af8b694ef7e5ac40bf647202a43c
[INFO] running `Command { std: "docker" "start" "-a" "788c84e562a2ccd69217191ae3e14bfe6983af8b694ef7e5ac40bf647202a43c", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.20
[INFO] [stderr]     Checking pin-project-lite v0.2.15
[INFO] [stderr]    Compiling autocfg v1.4.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.89
[INFO] [stderr]    Compiling unicode-ident v1.0.13
[INFO] [stderr]    Compiling libc v0.2.161
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling parking_lot_core v0.9.10
[INFO] [stderr]     Checking smallvec v1.13.2
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]     Checking bytes v1.8.0
[INFO] [stderr]     Checking rust_lib v0.1.0 (/opt/rustwide/workdir/rust-lib)
[INFO] [stderr]    Compiling rayon-core v1.12.1
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[INFO] [stderr]     Checking futures-core v0.3.31
[INFO] [stderr]     Checking futures-io v0.3.31
[INFO] [stderr]     Checking parking v2.2.1
[INFO] [stderr]     Checking fastrand v2.1.1
[INFO] [stderr]    Compiling rustix v0.38.39
[INFO] [stderr]     Checking bitflags v2.6.0
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking tracing-core v0.1.32
[INFO] [stderr]     Checking memchr v2.7.4
[INFO] [stderr]     Checking futures-sink v0.3.31
[INFO] [stderr]     Checking linux-raw-sys v0.4.14
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking futures-task v0.3.31
[INFO] [stderr]     Checking async-task v4.7.1
[INFO] [stderr]     Checking atomic-waker v1.1.2
[INFO] [stderr]     Checking futures-lite v2.4.0
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[INFO] [stderr]    Compiling lock_api v0.4.12
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking rust-channel v0.1.0 (/opt/rustwide/workdir/rust-channel)
[INFO] [stderr]     Checking rust-thread v0.1.0 (/opt/rustwide/workdir/rust-thread)
[INFO] [stderr]     Checking log v0.4.22
[INFO] [stdout] warning: field `id` is never read
[INFO] [stdout]   --> rust-thread/src/main.rs:58:5
[INFO] [stdout]    |
[INFO] [stdout] 57 | struct Worker {
[INFO] [stdout]    |        ------ field in this struct
[INFO] [stdout] 58 |     id: usize,
[INFO] [stdout]    |     ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `try_recv` is never used
[INFO] [stdout]   --> rust-channel/src/main.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl<T> Receiver<T> {
[INFO] [stdout]    | ------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 24 |     fn try_recv(&self) -> Option<T> {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `try_recv` is never used
[INFO] [stdout]   --> rust-channel/src/main.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl<T> Receiver<T> {
[INFO] [stdout]    | ------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 24 |     fn try_recv(&self) -> Option<T> {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking kv-log-macro v1.0.7
[INFO] [stdout] warning: field `id` is never read
[INFO] [stdout]   --> rust-thread/src/main.rs:58:5
[INFO] [stdout]    |
[INFO] [stdout] 57 | struct Worker {
[INFO] [stdout]    |        ------ field in this struct
[INFO] [stdout] 58 |     id: usize,
[INFO] [stdout]    |     ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
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[INFO] [stderr]     Checking async-channel v2.3.1
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]     Checking async-executor v1.13.1
[INFO] [stderr]    Compiling syn v2.0.87
[INFO] [stderr]     Checking signal-hook-registry v1.4.2
[INFO] [stderr]     Checking mio v1.0.2
[INFO] [stderr]     Checking socket2 v0.5.7
[INFO] [stderr]     Checking blocking v1.6.1
[INFO] [stderr]     Checking parking_lot v0.12.3
[INFO] [stderr]     Checking rayon v1.10.0
[INFO] [stderr]    Compiling tokio-macros v2.4.0
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling async-attributes v1.1.2
[INFO] [stderr]     Checking polling v3.7.3
[INFO] [stderr]     Checking futures-util v0.3.31
[INFO] [stderr]     Checking tokio v1.41.0
[INFO] [stderr]     Checking async-io v2.3.4
[INFO] [stderr]     Checking async-global-executor v2.4.1
[INFO] [stderr]     Checking async-std v1.13.0
[INFO] [stderr]     Checking futures-executor v0.3.31
[INFO] [stderr]     Checking futures v0.3.31
[INFO] [stderr]     Checking tokio-util v0.7.12
[INFO] [stderr]     Checking rust_demo v0.1.0 (/opt/rustwide/workdir/rust-demo)
[INFO] [stdout] warning: field `data` is never read
[INFO] [stdout]  --> rust-demo/mem/4_forget.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |  struct NeedCleanup {
[INFO] [stdout]   |         ----------- field in this struct
[INFO] [stdout] 5 |     data: Vec<u8>,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `data` is never read
[INFO] [stdout]  --> rust-demo/mem/4_forget.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |  struct NeedCleanup {
[INFO] [stdout]   |         ----------- field in this struct
[INFO] [stdout] 5 |     data: Vec<u8>,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary transmute
[INFO] [stdout]  --> rust-demo/mem/5_transmute.rs:9:30
[INFO] [stdout]   |
[INFO] [stdout] 9 |         let bytes: [u8; 4] = mem::transmute(num);
[INFO] [stdout]   |                              --------------^^^^^
[INFO] [stdout]   |                              |
[INFO] [stdout]   |                              help: replace this with: `i32::to_ne_bytes`
[INFO] [stdout]   |
[INFO] [stdout]   = help: there's also `to_le_bytes` and `to_be_bytes` if you expect a particular byte order
[INFO] [stdout]   = note: `#[warn(unnecessary_transmutes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Final` is never constructed
[INFO] [stdout]  --> rust-demo/mem/9_state.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | enum State {
[INFO] [stdout]   |      ----- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 6 |     Final,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `data` is never read
[INFO] [stdout]   --> rust-demo/mem/9_state.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | struct StateMachine {
[INFO] [stdout]    |        ------------ field in this struct
[INFO] [stdout] 11 |     state: State,
[INFO] [stdout] 12 |     data: Vec<u8>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::mem`
[INFO] [stdout]  --> rust-demo/mem/11_unlock.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::mem;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ptr`
[INFO] [stdout]  --> rust-demo/mem/11_unlock.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::ptr;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::thread::JoinHandle`
[INFO] [stdout]  --> rust-demo/mem/11_unlock.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::thread::JoinHandle;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `value` is never read
[INFO] [stdout]   --> rust-demo/mem/11_unlock.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | struct Node<T> {
[INFO] [stdout]    |        ---- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 19 |     value: T,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary transmute
[INFO] [stdout]  --> rust-demo/mem/5_transmute.rs:9:30
[INFO] [stdout]   |
[INFO] [stdout] 9 |         let bytes: [u8; 4] = mem::transmute(num);
[INFO] [stdout]   |                              --------------^^^^^
[INFO] [stdout]   |                              |
[INFO] [stdout]   |                              help: replace this with: `i32::to_ne_bytes`
[INFO] [stdout]   |
[INFO] [stdout]   = help: there's also `to_le_bytes` and `to_be_bytes` if you expect a particular byte order
[INFO] [stdout]   = note: `#[warn(unnecessary_transmutes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> rust-demo/mem/3_take_replace.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 34 |     let mut next = node.take_next();
[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]   --> rust-demo/mem/3_take_replace.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 34 |     let mut next = node.take_next();
[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: variant `Final` is never constructed
[INFO] [stdout]  --> rust-demo/mem/9_state.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | enum State {
[INFO] [stdout]   |      ----- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 6 |     Final,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `data` is never read
[INFO] [stdout]   --> rust-demo/mem/9_state.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | struct StateMachine {
[INFO] [stdout]    |        ------------ field in this struct
[INFO] [stdout] 11 |     state: State,
[INFO] [stdout] 12 |     data: Vec<u8>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::mem`
[INFO] [stdout]  --> rust-demo/mem/11_unlock.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::mem;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ptr`
[INFO] [stdout]  --> rust-demo/mem/11_unlock.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::ptr;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::thread::JoinHandle`
[INFO] [stdout]  --> rust-demo/mem/11_unlock.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::thread::JoinHandle;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `value` is never read
[INFO] [stdout]   --> rust-demo/mem/11_unlock.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | struct Node<T> {
[INFO] [stdout]    |        ---- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 19 |     value: T,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking rust_async v0.1.0 (/opt/rustwide/workdir/rust-async)
[INFO] [stdout] warning: unused import: `core::panic`
[INFO] [stdout]  --> rust-async/src/other/selectables.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use core::panic;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `new_executor_and_spawner`
[INFO] [stdout]   --> rust-async/src/other/main.rs:19:23
[INFO] [stdout]    |
[INFO] [stdout] 19 | use crate::executor::{new_executor_and_spawner};
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `pin_utils::pin_mut`
[INFO] [stdout]   --> rust-async/src/other/main.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 | use pin_utils::pin_mut;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `a` and `b` are never used
[INFO] [stdout]   --> rust-async/src/demo/9_test_pin.rs:27:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl Test {
[INFO] [stdout]    | --------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 27 |     fn a(self: Pin<&Self>) -> &str {
[INFO] [stdout]    |        ^
[INFO] [stdout] ...
[INFO] [stdout] 31 |     fn b(self: Pin<&Self>) -> &String {
[INFO] [stdout]    |        ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Duration` and `sleep`
[INFO] [stdout]  --> rust-async/src/demo/2_await.rs:2:19
[INFO] [stdout]   |
[INFO] [stdout] 2 | use tokio::time::{sleep, Duration};
[INFO] [stdout]   |                   ^^^^^  ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> rust-async/src/other/concurrent_iter.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 32 |     mut stream: Pin<&mut dyn Stream<Item = Result<u8, io::Error>>>,
[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 import: `core::panic`
[INFO] [stdout]  --> rust-async/src/other/selectables.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use core::panic;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `new_executor_and_spawner`
[INFO] [stdout]   --> rust-async/src/other/main.rs:19:23
[INFO] [stdout]    |
[INFO] [stdout] 19 | use crate::executor::{new_executor_and_spawner};
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `pin_utils::pin_mut`
[INFO] [stdout]   --> rust-async/src/other/main.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 | use pin_utils::pin_mut;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Duration` and `sleep`
[INFO] [stdout]  --> rust-async/src/demo/2_await.rs:2:19
[INFO] [stdout]   |
[INFO] [stdout] 2 | use tokio::time::{sleep, Duration};
[INFO] [stdout]   |                   ^^^^^  ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `a` and `b` are never used
[INFO] [stdout]   --> rust-async/src/demo/9_test_pin.rs:27:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl Test {
[INFO] [stdout]    | --------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 27 |     fn a(self: Pin<&Self>) -> &str {
[INFO] [stdout]    |        ^
[INFO] [stdout] ...
[INFO] [stdout] 31 |     fn b(self: Pin<&Self>) -> &String {
[INFO] [stdout]    |        ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> rust-async/src/example/delay.rs:35:10
[INFO] [stdout]    |
[INFO] [stdout] 35 | async fn main() {
[INFO] [stdout]    |          ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `FutureExt`
[INFO] [stdout]   --> rust-async/src/other/main.rs:26:49
[INFO] [stdout]    |
[INFO] [stdout] 26 | use futures::{channel::mpsc, stream::StreamExt, FutureExt};
[INFO] [stdout]    |                                                 ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> rust-async/src/other/concurrent_iter.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 32 |     mut stream: Pin<&mut dyn Stream<Item = Result<u8, io::Error>>>,
[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: `tx1`
[INFO] [stdout]   --> rust-async/src/example/my_select.rs:31:10
[INFO] [stdout]    |
[INFO] [stdout] 31 |     let (tx1, rx1) = oneshot::channel();
[INFO] [stdout]    |          ^^^ help: if this is intentional, prefix it with an underscore: `_tx1`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tx2`
[INFO] [stdout]   --> rust-async/src/example/my_select.rs:32:10
[INFO] [stdout]    |
[INFO] [stdout] 32 |     let (tx2, rx2) = oneshot::channel();
[INFO] [stdout]    |          ^^^ help: if this is intentional, prefix it with an underscore: `_tx2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `FutureExt`
[INFO] [stdout]   --> rust-async/src/other/main.rs:26:49
[INFO] [stdout]    |
[INFO] [stdout] 26 | use futures::{channel::mpsc, stream::StreamExt, FutureExt};
[INFO] [stdout]    |                                                 ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 19.78s
[INFO] running `Command { std: "docker" "inspect" "788c84e562a2ccd69217191ae3e14bfe6983af8b694ef7e5ac40bf647202a43c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "788c84e562a2ccd69217191ae3e14bfe6983af8b694ef7e5ac40bf647202a43c", kill_on_drop: false }`
[INFO] [stdout] 788c84e562a2ccd69217191ae3e14bfe6983af8b694ef7e5ac40bf647202a43c