[INFO] cloning repository https://github.com/Reso1mi/rust-demo [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Reso1mi/rust-demo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FReso1mi%2Frust-demo", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FReso1mi%2Frust-demo'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] ef85346bdbeebbdd97fd82fb82eb2a23af3ea0ac [INFO] checking Reso1mi/rust-demo against a5689b034ad287112f709693384a37f1377eb9cc for pr-129249-3 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FReso1mi%2Frust-demo" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/Reso1mi/rust-demo [INFO] finished tweaking git repo https://github.com/Reso1mi/rust-demo [INFO] tweaked toml for git repo https://github.com/Reso1mi/rust-demo written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/Reso1mi/rust-demo on toolchain a5689b034ad287112f709693384a37f1377eb9cc [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a5689b034ad287112f709693384a37f1377eb9cc" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/Reso1mi/rust-demo 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" "+a5689b034ad287112f709693384a37f1377eb9cc" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }` [INFO] [stdout] b69b7d02cd39b493eb910f443b963442aaf6c001e39875e3277131ff86700819 [INFO] running `Command { std: "docker" "start" "b69b7d02cd39b493eb910f443b963442aaf6c001e39875e3277131ff86700819", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "b69b7d02cd39b493eb910f443b963442aaf6c001e39875e3277131ff86700819", kill_on_drop: false }` [INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "b69b7d02cd39b493eb910f443b963442aaf6c001e39875e3277131ff86700819" "/opt/rustwide/cargo-home/bin/cargo" "+a5689b034ad287112f709693384a37f1377eb9cc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "b69b7d02cd39b493eb910f443b963442aaf6c001e39875e3277131ff86700819", kill_on_drop: false }` [INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "b69b7d02cd39b493eb910f443b963442aaf6c001e39875e3277131ff86700819" "/opt/rustwide/cargo-home/bin/cargo" "+a5689b034ad287112f709693384a37f1377eb9cc" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.95 [INFO] [stderr] Compiling unicode-ident v1.0.18 [INFO] [stderr] Compiling libc v0.2.174 [INFO] [stderr] Checking cfg-if v1.0.1 [INFO] [stderr] Checking pin-project-lite v0.2.16 [INFO] [stderr] Compiling autocfg v1.5.0 [INFO] [stderr] Compiling zerocopy v0.8.26 [INFO] [stderr] Checking futures-core v0.3.31 [INFO] [stderr] Checking smallvec v1.15.1 [INFO] [stderr] Compiling parking_lot_core v0.9.11 [INFO] [stderr] Checking once_cell v1.21.3 [INFO] [stderr] Checking scopeguard v1.2.0 [INFO] [stderr] Checking stable_deref_trait v1.2.0 [INFO] [stderr] Checking itoa v1.0.15 [INFO] [stderr] Checking futures-io v0.3.31 [INFO] [stderr] Checking bytes v1.10.1 [INFO] [stderr] Checking slab v0.4.11 [INFO] [stderr] 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Compiling yoke-derive v0.8.0 [INFO] [stderr] Checking tokio v1.47.1 [INFO] [stderr] Checking async-stream v0.3.6 [INFO] [stderr] Checking phf v0.11.3 [INFO] [stderr] Checking futures-util v0.3.31 [INFO] [stderr] Checking cssparser v0.31.2 [INFO] [stderr] Checking polling v3.10.0 [INFO] [stderr] Checking async-io v2.5.0 [INFO] [stderr] Checking pin-project v1.1.10 [INFO] [stderr] Checking zerofrom v0.1.6 [INFO] [stderr] Checking yoke v0.8.0 [INFO] [stderr] Checking tracing v0.1.41 [INFO] [stderr] Checking tracing-futures v0.2.5 [INFO] [stderr] Checking tracing-subscriber v0.2.25 [INFO] [stderr] Checking zerovec v0.11.4 [INFO] [stderr] Checking zerotrie v0.2.2 [INFO] [stderr] Checking async-global-executor v2.4.1 [INFO] [stderr] Checking async-std v1.13.2 [INFO] [stderr] Checking scraper v0.20.0 [INFO] [stderr] Checking tinystr v0.8.1 [INFO] [stderr] Checking potential_utf v0.1.2 [INFO] [stderr] Checking icu_collections v2.0.0 [INFO] [stderr] Checking icu_locale_core v2.0.0 [INFO] [stderr] Checking icu_provider v2.0.0 [INFO] [stderr] Checking icu_properties v2.0.1 [INFO] [stderr] Checking icu_normalizer v2.0.0 [INFO] [stderr] Checking futures-executor v0.3.31 [INFO] [stderr] Checking futures v0.3.31 [INFO] [stderr] Checking idna_adapter v1.2.1 [INFO] [stderr] Checking idna v1.1.0 [INFO] [stderr] Checking url v2.5.6 [INFO] [stderr] Checking tokio-util v0.7.16 [INFO] [stderr] Checking tokio-native-tls v0.3.1 [INFO] [stderr] Checking tower v0.5.2 [INFO] [stderr] Checking tokio-stream v0.1.17 [INFO] [stderr] Checking h2 v0.4.12 [INFO] [stderr] Checking mini-redis v0.4.1 [INFO] [stderr] Checking tower-http v0.6.6 [INFO] [stderr] Checking hyper v1.7.0 [INFO] [stderr] Checking hyper-util v0.1.16 [INFO] [stderr] Checking hyper-tls v0.6.0 [INFO] [stderr] Checking reqwest v0.12.23 [INFO] [stderr] Checking trpl v0.2.0 [INFO] [stderr] Checking rust-demo v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `fmt::format` [INFO] [stdout] --> src/bin/async_echo_server.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | fmt::format, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Arc` and `Thread` [INFO] [stdout] --> src/bin/chan_1.rs:2:12 [INFO] [stdout] | [INFO] [stdout] 2 | sync::{Arc, mpsc}, [INFO] [stdout] | ^^^ [INFO] [stdout] 3 | thread::{self, Thread}, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `utils::HelloMacro` [INFO] [stdout] --> src/bin/marcro_1.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use utils::HelloMacro; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::num` [INFO] [stdout] --> src/bin/closure_4.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::num; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/bin/static_1.rs:71:9 [INFO] [stdout] | [INFO] [stdout] 71 | let mut v = "s13".to_string(); [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `c` [INFO] [stdout] --> src/bin/static_1.rs:70:9 [INFO] [stdout] | [INFO] [stdout] 70 | let c = 1; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_c` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `v` [INFO] [stdout] --> src/bin/static_1.rs:71:9 [INFO] [stdout] | [INFO] [stdout] 71 | let mut v = "s13".to_string(); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_v` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: static `REQUEST_RECV` is never used [INFO] [stdout] --> src/bin/static_1.rs:11:12 [INFO] [stdout] | [INFO] [stdout] 11 | static mut REQUEST_RECV: usize = 0; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Config` is never constructed [INFO] [stdout] --> src/bin/static_1.rs:34:8 [INFO] [stdout] | [INFO] [stdout] 34 | struct Config { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: static `CONFIG` is never used [INFO] [stdout] --> src/bin/static_1.rs:38:12 [INFO] [stdout] | [INFO] [stdout] 38 | static mut CONFIG: Option<&'static mut Config> = None; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: static `CONFIG_2` is never used [INFO] [stdout] --> src/bin/static_1.rs:42:8 [INFO] [stdout] | [INFO] [stdout] 42 | static CONFIG_2: OnceLock = OnceLock::new(); [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `test2` is never used [INFO] [stdout] --> src/bin/static_1.rs:44:4 [INFO] [stdout] | [INFO] [stdout] 44 | fn test2() { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `test_box_leak` is never used [INFO] [stdout] --> src/bin/static_1.rs:60:4 [INFO] [stdout] | [INFO] [stdout] 60 | fn test_box_leak() { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `0` and `1` are never read [INFO] [stdout] --> src/bin/proc_marcro_1.rs:11:17 [INFO] [stdout] | [INFO] [stdout] 11 | struct SomeData(u32, String); [INFO] [stdout] | -------- ^^^ ^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | fields in this struct [INFO] [stdout] | [INFO] [stdout] = help: consider removing these fields [INFO] [stdout] = note: `SomeData` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `name` and `data` are never read [INFO] [stdout] --> src/bin/proc_marcro_1.rs:15:5 [INFO] [stdout] | [INFO] [stdout] 14 | struct User { [INFO] [stdout] | ---- fields in this struct [INFO] [stdout] 15 | name: String, [INFO] [stdout] | ^^^^ [INFO] [stdout] 16 | data: SomeData, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `User` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `cloned` [INFO] [stdout] --> src/bin/type_1.rs:10:13 [INFO] [stdout] | [INFO] [stdout] 10 | let cloned = value.clone(); [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_cloned` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/bin/type_1.rs:18:9 [INFO] [stdout] | [INFO] [stdout] 18 | let mut a = &mut 0; [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/bin/type_1.rs:19:9 [INFO] [stdout] | [INFO] [stdout] 19 | let mut b = &0; [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `a` [INFO] [stdout] --> src/bin/type_1.rs:18:9 [INFO] [stdout] | [INFO] [stdout] 18 | let mut a = &mut 0; [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_a` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `t` [INFO] [stdout] --> src/bin/type_1.rs:21:27 [INFO] [stdout] | [INFO] [stdout] 21 | fn recive_2(t: T) {} [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_t` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `do_stuff` is never used [INFO] [stdout] --> src/bin/type_1.rs:9:8 [INFO] [stdout] | [INFO] [stdout] 9 | fn do_stuff(value: &T) { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `send_enum` is never used [INFO] [stdout] --> src/bin/chan_1.rs:17:4 [INFO] [stdout] | [INFO] [stdout] 17 | fn send_enum() { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `block_chan` is never used [INFO] [stdout] --> src/bin/chan_1.rs:38:4 [INFO] [stdout] | [INFO] [stdout] 38 | fn block_chan() { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `send_some` is never used [INFO] [stdout] --> src/bin/chan_1.rs:56:4 [INFO] [stdout] | [INFO] [stdout] 56 | fn send_some() { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `test` is never used [INFO] [stdout] --> src/bin/chan_1.rs:72:4 [INFO] [stdout] | [INFO] [stdout] 72 | fn test() { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `trans_ownership` is never used [INFO] [stdout] --> src/bin/chan_1.rs:110:4 [INFO] [stdout] | [INFO] [stdout] 110 | fn trans_ownership() { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `try_recv` is never used [INFO] [stdout] --> src/bin/chan_1.rs:125:4 [INFO] [stdout] | [INFO] [stdout] 125 | fn try_recv() { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `recv_1` is never used [INFO] [stdout] --> src/bin/chan_1.rs:136:4 [INFO] [stdout] | [INFO] [stdout] 136 | fn recv_1() { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::fmt::format` [INFO] [stdout] --> src/bin/vector_2.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::fmt::format; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/bin/ownership_3.rs:96:13 [INFO] [stdout] | [INFO] [stdout] 96 | let mut str_opt2 = &StrOpt { [INFO] [stdout] | ----^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `v` [INFO] [stdout] --> src/bin/ownership_3.rs:13:13 [INFO] [stdout] | [INFO] [stdout] 13 | let v = match &str_opt.value { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_v` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `v` [INFO] [stdout] --> src/bin/ownership_3.rs:32:13 [INFO] [stdout] | [INFO] [stdout] 32 | let v = match str_opt.value { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_v` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `v` [INFO] [stdout] --> src/bin/ownership_3.rs:45:13 [INFO] [stdout] | [INFO] [stdout] 45 | let v = match str_opt.value { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_v` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `v` [INFO] [stdout] --> src/bin/ownership_3.rs:60:13 [INFO] [stdout] | [INFO] [stdout] 60 | let v = match s.raw_int { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_v` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `str_opt2` [INFO] [stdout] --> src/bin/ownership_3.rs:96:13 [INFO] [stdout] | [INFO] [stdout] 96 | let mut str_opt2 = &StrOpt { [INFO] [stdout] | ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_str_opt2` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `z` [INFO] [stdout] --> src/bin/ownership_3.rs:134:21 [INFO] [stdout] | [INFO] [stdout] 134 | let z = (self.calc)(&arg); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_z` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `get_value` is never used [INFO] [stdout] --> src/bin/ownership_3.rs:73:16 [INFO] [stdout] | [INFO] [stdout] 72 | impl StrOpt { [INFO] [stdout] | ----------- method in this implementation [INFO] [stdout] 73 | fn get_value(&self) -> &String { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Cache` is never constructed [INFO] [stdout] --> src/bin/ownership_3.rs:104:8 [INFO] [stdout] | [INFO] [stdout] 104 | struct Cache [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new` and `get_value` are never used [INFO] [stdout] --> src/bin/ownership_3.rs:119:8 [INFO] [stdout] | [INFO] [stdout] 113 | / impl Cache [INFO] [stdout] 114 | | where [INFO] [stdout] 115 | | F: Fn(&K) -> V, [INFO] [stdout] 116 | | K: Eq + Hash + Clone, [INFO] [stdout] 117 | | V: Debug, [INFO] [stdout] | |_____________- associated items in this implementation [INFO] [stdout] 118 | { [INFO] [stdout] 119 | fn new(calc: F) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 126 | fn get_value(&mut self, arg: K) -> &V { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `path` [INFO] [stdout] --> src/bin/error_r.rs:2:15 [INFO] [stdout] | [INFO] [stdout] 2 | use std::{fs, path}; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `ops::Not` [INFO] [stdout] --> src/bin/error_r.rs:3:21 [INFO] [stdout] | [INFO] [stdout] 3 | use std::{fs::File, ops::Not}; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `m` [INFO] [stdout] --> src/bin/vector_2.rs:3:9 [INFO] [stdout] | [INFO] [stdout] 3 | let m = String::new(); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_m` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `l` [INFO] [stdout] --> src/bin/vector_2.rs:5:9 [INFO] [stdout] | [INFO] [stdout] 5 | let l = "test".to_string(); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_l` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `ll` [INFO] [stdout] --> src/bin/vector_2.rs:6:9 [INFO] [stdout] | [INFO] [stdout] 6 | let ll = String::from("test"); [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_ll` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `hello` [INFO] [stdout] --> src/bin/vector_2.rs:8:9 [INFO] [stdout] | [INFO] [stdout] 8 | let hello = String::from("السلام عليكم"); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_hello` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `hello` [INFO] [stdout] --> src/bin/vector_2.rs:9:9 [INFO] [stdout] | [INFO] [stdout] 9 | let hello = String::from("Dobrý den"); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_hello` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `hello` [INFO] [stdout] --> src/bin/vector_2.rs:10:9 [INFO] [stdout] | [INFO] [stdout] 10 | let hello = String::from("Hello"); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_hello` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `hello` [INFO] [stdout] --> src/bin/vector_2.rs:11:9 [INFO] [stdout] | [INFO] [stdout] 11 | let hello = String::from("שָׁלוֹם"); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_hello` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `hello` [INFO] [stdout] --> src/bin/vector_2.rs:12:9 [INFO] [stdout] | [INFO] [stdout] 12 | let hello = String::from("नमस्ते"); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_hello` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `hello` [INFO] [stdout] --> src/bin/vector_2.rs:13:9 [INFO] [stdout] | [INFO] [stdout] 13 | let hello = String::from("こんにちは"); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_hello` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `hello` [INFO] [stdout] --> src/bin/vector_2.rs:14:9 [INFO] [stdout] | [INFO] [stdout] 14 | let hello = String::from("안녕하세요"); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_hello` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `hello` [INFO] [stdout] --> src/bin/vector_2.rs:15:9 [INFO] [stdout] | [INFO] [stdout] 15 | let hello = String::from("你好"); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_hello` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `hello` [INFO] [stdout] --> src/bin/vector_2.rs:16:9 [INFO] [stdout] | [INFO] [stdout] 16 | let hello = String::from("Olá"); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_hello` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `hello` [INFO] [stdout] --> src/bin/vector_2.rs:17:9 [INFO] [stdout] | [INFO] [stdout] 17 | let hello = String::from("Здравствуйте"); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_hello` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `hello` [INFO] [stdout] --> src/bin/vector_2.rs:18:9 [INFO] [stdout] | [INFO] [stdout] 18 | let hello = String::from("Hola"); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_hello` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/chan_1.rs:24:5 [INFO] [stdout] | [INFO] [stdout] 24 | / s.send(Animal::Cat { [INFO] [stdout] 25 | | age: 8, [INFO] [stdout] 26 | | name: "zaizai".to_string(), [INFO] [stdout] 27 | | }); [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)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 24 | let _ = s.send(Animal::Cat { [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `rust-demo` (bin "async_echo_server" test) due to 1 previous error; 1 warning emitted [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/chan_1.rs:28:5 [INFO] [stdout] | [INFO] [stdout] 28 | s.send(Animal::Dog("qdd")); [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] 28 | let _ = s.send(Animal::Dog("qdd")); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/chan_1.rs:42:9 [INFO] [stdout] | [INFO] [stdout] 42 | s.send("t"); [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 _ = s.send("t"); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/chan_1.rs:44:9 [INFO] [stdout] | [INFO] [stdout] 44 | s.send("a"); [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] 44 | let _ = s.send("a"); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/chan_1.rs:46:9 [INFO] [stdout] | [INFO] [stdout] 46 | s.send("b"); [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] 46 | let _ = s.send("b"); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/chan_1.rs:61:9 [INFO] [stdout] | [INFO] [stdout] 61 | s.send("t"); [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] 61 | let _ = s.send("t"); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/chan_1.rs:62:9 [INFO] [stdout] | [INFO] [stdout] 62 | s.send("a"); [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] 62 | let _ = s.send("a"); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/chan_1.rs:63:9 [INFO] [stdout] | [INFO] [stdout] 63 | s.send("b"); [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] 63 | let _ = s.send("b"); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/chan_1.rs:101:9 [INFO] [stdout] | [INFO] [stdout] 101 | s2.send(str); [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] 101 | let _ = s2.send(str); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/chan_1.rs:116:9 [INFO] [stdout] | [INFO] [stdout] 116 | s.send(str); [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] 116 | let _ = s.send(str); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `test` is never used [INFO] [stdout] --> src/bin/async_demo_close.rs:8:10 [INFO] [stdout] | [INFO] [stdout] 8 | async fn test() { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: useless conversion to the same type: `bytes::Bytes` [INFO] [stdout] --> src/bin/async_echo_server.rs:44:37 [INFO] [stdout] | [INFO] [stdout] 44 | Frame::Bulk(val.clone().into()) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this method call relies on the `impl Into for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors [INFO] [stdout] = note: `#[deny(self_type_conversion)]` on by default [INFO] [stdout] help: consider removing the conversion call [INFO] [stdout] | [INFO] [stdout] 44 - Frame::Bulk(val.clone().into()) [INFO] [stdout] 44 + Frame::Bulk(val.clone()) [INFO] [stdout] | [INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint [INFO] [stdout] | [INFO] [stdout] 44 - Frame::Bulk(val.clone().into()) [INFO] [stdout] 44 + Frame::Bulk(>::into(val.clone())) [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `0` and `1` are never read [INFO] [stdout] --> src/bin/proc_marcro_1.rs:11:17 [INFO] [stdout] | [INFO] [stdout] 11 | struct SomeData(u32, String); [INFO] [stdout] | -------- ^^^ ^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | fields in this struct [INFO] [stdout] | [INFO] [stdout] = help: consider removing these fields [INFO] [stdout] = note: `SomeData` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `name` and `data` are never read [INFO] [stdout] --> src/bin/proc_marcro_1.rs:15:5 [INFO] [stdout] | [INFO] [stdout] 14 | struct User { [INFO] [stdout] | ---- fields in this struct [INFO] [stdout] 15 | name: String, [INFO] [stdout] | ^^^^ [INFO] [stdout] 16 | data: SomeData, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `User` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `v` [INFO] [stdout] --> src/bin/error_r.rs:7:9 [INFO] [stdout] | [INFO] [stdout] 7 | let v = vec![1, 2, 3, 4]; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_v` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::num` [INFO] [stdout] --> src/bin/closure_4.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::num; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/bin/ownership_3.rs:96:13 [INFO] [stdout] | [INFO] [stdout] 96 | let mut str_opt2 = &StrOpt { [INFO] [stdout] | ----^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `v` [INFO] [stdout] --> src/bin/ownership_3.rs:13:13 [INFO] [stdout] | [INFO] [stdout] 13 | let v = match &str_opt.value { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_v` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `v` [INFO] [stdout] --> src/bin/ownership_3.rs:32:13 [INFO] [stdout] | [INFO] [stdout] 32 | let v = match str_opt.value { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_v` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `v` [INFO] [stdout] --> src/bin/ownership_3.rs:45:13 [INFO] [stdout] | [INFO] [stdout] 45 | let v = match str_opt.value { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_v` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `v` [INFO] [stdout] --> src/bin/ownership_3.rs:60:13 [INFO] [stdout] | [INFO] [stdout] 60 | let v = match s.raw_int { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_v` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `str_opt2` [INFO] [stdout] --> src/bin/ownership_3.rs:96:13 [INFO] [stdout] | [INFO] [stdout] 96 | let mut str_opt2 = &StrOpt { [INFO] [stdout] | ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_str_opt2` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `z` [INFO] [stdout] --> src/bin/ownership_3.rs:134:21 [INFO] [stdout] | [INFO] [stdout] 134 | let z = (self.calc)(&arg); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_z` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `get_value` is never used [INFO] [stdout] --> src/bin/ownership_3.rs:73:16 [INFO] [stdout] | [INFO] [stdout] 72 | impl StrOpt { [INFO] [stdout] | ----------- method in this implementation [INFO] [stdout] 73 | fn get_value(&self) -> &String { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Cache` is never constructed [INFO] [stdout] --> src/bin/ownership_3.rs:104:8 [INFO] [stdout] | [INFO] [stdout] 104 | struct Cache [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new` and `get_value` are never used [INFO] [stdout] --> src/bin/ownership_3.rs:119:8 [INFO] [stdout] | [INFO] [stdout] 113 | / impl Cache [INFO] [stdout] 114 | | where [INFO] [stdout] 115 | | F: Fn(&K) -> V, [INFO] [stdout] 116 | | K: Eq + Hash + Clone, [INFO] [stdout] 117 | | V: Debug, [INFO] [stdout] | |_____________- associated items in this implementation [INFO] [stdout] 118 | { [INFO] [stdout] 119 | fn new(calc: F) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 126 | fn get_value(&mut self, arg: K) -> &V { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `page_title_2` is never used [INFO] [stdout] --> src/bin/async_demo_1.rs:38:4 [INFO] [stdout] | [INFO] [stdout] 38 | fn page_title_2(url: &str) -> impl Future> { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `other` [INFO] [stdout] --> src/bin/error_r.rs:18:13 [INFO] [stdout] | [INFO] [stdout] 18 | other => panic!("error"), [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] help: you might have meant to pattern match on the similarly named variant `Other` [INFO] [stdout] | [INFO] [stdout] 18 - other => panic!("error"), [INFO] [stdout] 18 + std::io::ErrorKind::Other => panic!("error"), [INFO] [stdout] | [INFO] [stdout] help: if this is intentional, prefix it with an underscore [INFO] [stdout] | [INFO] [stdout] 18 | _other => panic!("error"), [INFO] [stdout] | + [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `send_recv` is never used [INFO] [stdout] --> src/bin/async_stream_1.rs:5:10 [INFO] [stdout] | [INFO] [stdout] 5 | async fn send_recv() { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `sum_with_next` is never used [INFO] [stdout] --> src/bin/async_stream_1.rs:20:10 [INFO] [stdout] | [INFO] [stdout] 20 | async fn sum_with_next(mut stream: Pin<&mut dyn Stream>) -> i32 { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `sum_with_try_next` is never used [INFO] [stdout] --> src/bin/async_stream_1.rs:29:10 [INFO] [stdout] | [INFO] [stdout] 29 | async fn sum_with_try_next( [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `some_int` [INFO] [stdout] --> src/bin/match_r.rs:54:9 [INFO] [stdout] | [INFO] [stdout] 54 | let some_int = Some(32); [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_some_int` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `some_char` [INFO] [stdout] --> src/bin/match_r.rs:55:9 [INFO] [stdout] | [INFO] [stdout] 55 | let some_char = Some('b'); [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_some_char` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `null_int` [INFO] [stdout] --> src/bin/match_r.rs:57:9 [INFO] [stdout] | [INFO] [stdout] 57 | let null_int: Option = None; [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_null_int` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `Message` is never used [INFO] [stdout] --> src/bin/match_r.rs:1:6 [INFO] [stdout] | [INFO] [stdout] 1 | enum Message { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `IpAddrKind` is never used [INFO] [stdout] --> src/bin/match_r.rs:9:6 [INFO] [stdout] | [INFO] [stdout] 9 | enum IpAddrKind { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/bin/match_r.rs:16:8 [INFO] [stdout] | [INFO] [stdout] 16 | V4(String), [INFO] [stdout] | -- ^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `IpAddr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 16 - V4(String), [INFO] [stdout] 16 + V4(()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `V6` is never constructed [INFO] [stdout] --> src/bin/match_r.rs:17:5 [INFO] [stdout] | [INFO] [stdout] 15 | enum IpAddr { [INFO] [stdout] | ------ variant in this enum [INFO] [stdout] 16 | V4(String), [INFO] [stdout] 17 | V6(String), [INFO] [stdout] | ^^ [INFO] [stdout] | [INFO] [stdout] = note: `IpAddr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variants `USA` and `Japan` are never constructed [INFO] [stdout] --> src/bin/match_r.rs:23:5 [INFO] [stdout] | [INFO] [stdout] 21 | enum Holder { [INFO] [stdout] | ------ variants in this enum [INFO] [stdout] 22 | China, [INFO] [stdout] 23 | USA, [INFO] [stdout] | ^^^ [INFO] [stdout] 24 | Japan, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Holder` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variants `BTC` and `ETH` are never constructed [INFO] [stdout] --> src/bin/match_r.rs:28:5 [INFO] [stdout] | [INFO] [stdout] 27 | enum Coin { [INFO] [stdout] | ---- variants in this enum [INFO] [stdout] 28 | BTC, [INFO] [stdout] | ^^^ [INFO] [stdout] 29 | ETH, [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/bin/struct_r.rs:9:14 [INFO] [stdout] | [INFO] [stdout] 9 | struct Point(u32, u32); [INFO] [stdout] | ----- ^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this struct [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 9 - struct Point(u32, u32); [INFO] [stdout] 9 + struct Point((), u32); [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `get_w` and `area2` are never used [INFO] [stdout] --> src/bin/struct_r.rs:18:8 [INFO] [stdout] | [INFO] [stdout] 17 | impl Rectangle { [INFO] [stdout] | -------------- methods in this implementation [INFO] [stdout] 18 | fn get_w(&self) -> u32 { [INFO] [stdout] | ^^^^^ [INFO] [stdout] ... [INFO] [stdout] 28 | fn area2(self, c: u32) -> u32 { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `build_user` is never used [INFO] [stdout] --> src/bin/struct_r.rs:97:4 [INFO] [stdout] | [INFO] [stdout] 97 | fn build_user(email: String, name: String, active: bool) -> User { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `send_recv` is never used [INFO] [stdout] --> src/bin/async_stream_1.rs:5:10 [INFO] [stdout] | [INFO] [stdout] 5 | async fn send_recv() { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `sum_with_next` is never used [INFO] [stdout] --> src/bin/async_stream_1.rs:20:10 [INFO] [stdout] | [INFO] [stdout] 20 | async fn sum_with_next(mut stream: Pin<&mut dyn Stream>) -> i32 { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `sum_with_try_next` is never used [INFO] [stdout] --> src/bin/async_stream_1.rs:29:10 [INFO] [stdout] | [INFO] [stdout] 29 | async fn sum_with_try_next( [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `tokio::net::TcpStream` [INFO] [stdout] --> src/bin/async_io.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use tokio::net::TcpStream; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/bin/async_io.rs:34:9 [INFO] [stdout] | [INFO] [stdout] 34 | let mut reader = b"hello"; [INFO] [stdout] | ----^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "b69b7d02cd39b493eb910f443b963442aaf6c001e39875e3277131ff86700819", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b69b7d02cd39b493eb910f443b963442aaf6c001e39875e3277131ff86700819", kill_on_drop: false }` [INFO] [stdout] b69b7d02cd39b493eb910f443b963442aaf6c001e39875e3277131ff86700819