[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#ba412a6e70ac84641be7764d088acabd0eb3fa39 for pr-145457 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwoodrow-wong%2FSomeRedisPracitce" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-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-6-tc1/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/woodrow-wong/SomeRedisPracitce on toolchain ba412a6e70ac84641be7764d088acabd0eb3fa39 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ba412a6e70ac84641be7764d088acabd0eb3fa39" "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 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ba412a6e70ac84641be7764d088acabd0eb3fa39" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+ba412a6e70ac84641be7764d088acabd0eb3fa39" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 8c35f5b25dbd7cc5ebf4bac21cca4ea25b7c887f5519e98ba3141ba9247573ae [INFO] running `Command { std: "docker" "start" "-a" "8c35f5b25dbd7cc5ebf4bac21cca4ea25b7c887f5519e98ba3141ba9247573ae", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "8c35f5b25dbd7cc5ebf4bac21cca4ea25b7c887f5519e98ba3141ba9247573ae", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8c35f5b25dbd7cc5ebf4bac21cca4ea25b7c887f5519e98ba3141ba9247573ae", kill_on_drop: false }` [INFO] [stdout] 8c35f5b25dbd7cc5ebf4bac21cca4ea25b7c887f5519e98ba3141ba9247573ae [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+ba412a6e70ac84641be7764d088acabd0eb3fa39" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 12a9e13c065bb45e8504bd15914153e0761bdf57c87a53ac9e7bd3e80fe7fa9d [INFO] running `Command { std: "docker" "start" "-a" "12a9e13c065bb45e8504bd15914153e0761bdf57c87a53ac9e7bd3e80fe7fa9d", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.94 [INFO] [stderr] Compiling unicode-ident v1.0.18 [INFO] [stderr] Compiling autocfg v1.4.0 [INFO] [stderr] Compiling libc v0.2.171 [INFO] [stderr] Checking pin-project-lite v0.2.16 [INFO] [stderr] Compiling version_check v0.9.5 [INFO] [stderr] Checking once_cell v1.21.3 [INFO] [stderr] Checking futures-core v0.3.31 [INFO] [stderr] Compiling crossbeam-utils v0.8.21 [INFO] [stderr] Checking smallvec v1.14.0 [INFO] [stderr] Compiling serde v1.0.219 [INFO] [stderr] Compiling parking_lot_core v0.9.10 [INFO] [stderr] Checking memchr v2.7.4 [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Checking scopeguard v1.2.0 [INFO] [stderr] Compiling serde_json v1.0.140 [INFO] [stderr] Checking lazy_static v1.5.0 [INFO] [stderr] Checking regex-syntax v0.6.29 [INFO] [stderr] Compiling unicode-segmentation v1.12.0 [INFO] [stderr] Checking ansi_term v0.12.1 [INFO] [stderr] Checking unicode-width v0.1.14 [INFO] [stderr] Checking futures-sink v0.3.31 [INFO] [stderr] Checking regex-syntax v0.8.5 [INFO] [stderr] Checking tracing-core v0.1.33 [INFO] [stderr] Checking futures-channel v0.3.31 [INFO] [stderr] Checking vec_map v0.8.2 [INFO] [stderr] Checking log v0.4.27 [INFO] [stderr] Checking pin-utils v0.1.0 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.4 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Checking strsim v0.8.0 [INFO] [stderr] Checking ryu v1.0.20 [INFO] [stderr] Checking bytes v1.10.1 [INFO] [stderr] Checking futures-io v0.3.31 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Compiling num-traits v0.2.19 [INFO] [stderr] Compiling lock_api v0.4.12 [INFO] [stderr] Compiling slab v0.4.9 [INFO] [stderr] Compiling heck v0.3.3 [INFO] [stderr] Checking iana-time-zone v0.1.62 [INFO] [stderr] Checking itoa v1.0.15 [INFO] [stderr] Checking bitflags v1.3.2 [INFO] [stderr] Checking futures-task v0.3.31 [INFO] [stderr] Checking tracing-log v0.1.4 [INFO] [stderr] Checking crossbeam-epoch v0.9.18 [INFO] [stderr] Checking thread_local v1.1.8 [INFO] [stderr] Checking sharded-slab v0.1.7 [INFO] [stderr] Checking crossbeam-channel v0.5.15 [INFO] [stderr] Checking crossbeam-queue v0.3.12 [INFO] [stderr] Compiling quote v1.0.40 [INFO] [stderr] Checking regex-automata v0.4.9 [INFO] [stderr] Compiling syn v2.0.100 [INFO] [stderr] Checking crossbeam-deque v0.8.6 [INFO] [stderr] Checking crossbeam v0.8.4 [INFO] [stderr] Checking chrono v0.4.40 [INFO] [stderr] Checking atoi v0.3.3 [INFO] [stderr] Checking mio v1.0.3 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking socket2 v0.5.8 [INFO] [stderr] Checking signal-hook-registry v1.4.2 [INFO] [stderr] Checking clap v2.34.0 [INFO] [stderr] Checking regex-automata v0.1.10 [INFO] [stderr] Checking parking_lot v0.12.3 [INFO] [stderr] Checking regex v1.11.1 [INFO] [stderr] Checking matchers v0.0.1 [INFO] [stderr] Checking tracing-serde v0.1.3 [INFO] [stderr] Compiling structopt-derive v0.4.18 [INFO] [stderr] Checking structopt v0.3.26 [INFO] [stderr] Compiling tracing-attributes v0.1.28 [INFO] [stderr] Compiling tokio-macros v2.5.0 [INFO] [stderr] Compiling pin-project-internal v1.1.10 [INFO] [stderr] Compiling futures-macro v0.3.31 [INFO] [stderr] Compiling async-stream-impl v0.3.6 [INFO] [stderr] Checking async-stream v0.3.6 [INFO] [stderr] Checking tokio v1.44.1 [INFO] [stderr] Checking futures-util v0.3.31 [INFO] [stderr] Checking pin-project v1.1.10 [INFO] [stderr] Checking tracing v0.1.41 [INFO] [stderr] Checking tracing-subscriber v0.2.25 [INFO] [stderr] Checking tracing-futures v0.2.5 [INFO] [stderr] Checking futures-executor v0.3.31 [INFO] [stderr] Checking futures v0.3.31 [INFO] [stderr] Checking tokio-stream v0.1.17 [INFO] [stderr] Checking mini-redis v0.4.1 [INFO] [stderr] Checking my-redis-project v0.1.0 (/opt/rustwide/workdir) [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: 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 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 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: `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 = vec![1, 2, 3]; // Vec: '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 = vec![1, 2, 3]; // Vec: '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: 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] [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: 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: 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: 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: 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 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: 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 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: 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: `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 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: 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: `owned_vector` [INFO] [stdout] --> src/bin/lifetime_try.rs:129:9 [INFO] [stdout] | [INFO] [stdout] 129 | let owned_vector: Vec = vec![1, 2, 3]; // Vec: '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 = vec![1, 2, 3]; // Vec: '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: 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] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 24.05s [INFO] running `Command { std: "docker" "inspect" "12a9e13c065bb45e8504bd15914153e0761bdf57c87a53ac9e7bd3e80fe7fa9d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "12a9e13c065bb45e8504bd15914153e0761bdf57c87a53ac9e7bd3e80fe7fa9d", kill_on_drop: false }` [INFO] [stdout] 12a9e13c065bb45e8504bd15914153e0761bdf57c87a53ac9e7bd3e80fe7fa9d