[INFO] cloning repository https://github.com/0num4/rust-playground [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/0num4/rust-playground" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0num4%2Frust-playground", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0num4%2Frust-playground'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 826a3e010d73ceeb1db5b59d1a569c25da4494b9 [INFO] checking 0num4/rust-playground/826a3e010d73ceeb1db5b59d1a569c25da4494b9 against try#ccf408f4326a858c00dd845a64a86b16f360a801 for pr-129466-2 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0num4%2Frust-playground" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/0num4/rust-playground on toolchain ccf408f4326a858c00dd845a64a86b16f360a801 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ccf408f4326a858c00dd845a64a86b16f360a801" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/0num4/rust-playground [INFO] finished tweaking git repo https://github.com/0num4/rust-playground [INFO] tweaked toml for git repo https://github.com/0num4/rust-playground written to /workspace/builds/worker-1-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/0num4/rust-playground 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" "+ccf408f4326a858c00dd845a64a86b16f360a801" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+ccf408f4326a858c00dd845a64a86b16f360a801" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] ef89e7e35e6081cd56e4b80e4ee0d6fcabc33b5c2d9b9d8afaf7c778ebfef910 [INFO] running `Command { std: "docker" "start" "-a" "ef89e7e35e6081cd56e4b80e4ee0d6fcabc33b5c2d9b9d8afaf7c778ebfef910", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ef89e7e35e6081cd56e4b80e4ee0d6fcabc33b5c2d9b9d8afaf7c778ebfef910", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ef89e7e35e6081cd56e4b80e4ee0d6fcabc33b5c2d9b9d8afaf7c778ebfef910", kill_on_drop: false }` [INFO] [stdout] ef89e7e35e6081cd56e4b80e4ee0d6fcabc33b5c2d9b9d8afaf7c778ebfef910 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+ccf408f4326a858c00dd845a64a86b16f360a801" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] c06a0bf20ad1e0a37b78a27c00bf95885e67777feccc16f2960e9392cf58de49 [INFO] running `Command { std: "docker" "start" "-a" "c06a0bf20ad1e0a37b78a27c00bf95885e67777feccc16f2960e9392cf58de49", kill_on_drop: false }` [INFO] [stderr] Copying to /tmp/fixit [INFO] [stderr] Running `cargo fix --edition` [INFO] [stderr] Migrating Cargo.toml from 2021 edition to 2024 [INFO] [stderr] warning: rust-playground v0.1.0 (/tmp/fixit) ignoring invalid dependency `cargo-insta` which is missing a lib target [INFO] [stderr] Compiling proc-macro2 v1.0.81 [INFO] [stderr] Compiling libc v0.2.154 [INFO] [stderr] Compiling autocfg v1.2.0 [INFO] [stderr] Compiling parking_lot_core v0.9.10 [INFO] [stderr] Checking bytes v1.6.0 [INFO] [stderr] Checking smallvec v1.13.2 [INFO] [stderr] Compiling serde v1.0.200 [INFO] [stderr] Checking log v0.4.21 [INFO] [stderr] Compiling fnv v1.0.7 [INFO] [stderr] Compiling strsim v0.11.1 [INFO] [stderr] Compiling ident_case v1.0.1 [INFO] [stderr] Checking indexmap v2.2.6 [INFO] [stderr] Checking tracing v0.1.40 [INFO] [stderr] Checking futures-task v0.3.30 [INFO] [stderr] Compiling lock_api v0.4.12 [INFO] [stderr] Compiling slab v0.4.9 [INFO] [stderr] Checking http v1.1.0 [INFO] [stderr] Checking futures-util v0.3.30 [INFO] [stderr] Compiling num-traits v0.2.19 [INFO] [stderr] Compiling either v1.12.0 [INFO] [stderr] Compiling pq-sys v0.6.1 [INFO] [stderr] Compiling quote v1.0.36 [INFO] [stderr] Checking tower-layer v0.3.2 [INFO] [stderr] Checking tower-service v0.3.2 [INFO] [stderr] Compiling serde_json v1.0.117 [INFO] [stderr] Checking winnow v0.6.18 [INFO] [stderr] Compiling syn v2.0.60 [INFO] [stderr] Checking mio v0.8.11 [INFO] [stderr] Checking socket2 v0.5.7 [INFO] [stderr] Checking num_cpus v1.16.0 [INFO] [stderr] Checking signal-hook-registry v1.4.2 [INFO] [stderr] Checking parking_lot v0.12.2 [INFO] [stderr] Checking http-body v1.0.0 [INFO] [stderr] Checking getrandom v0.2.15 [INFO] [stderr] Checking iana-time-zone v0.1.60 [INFO] [stderr] Checking byteorder v1.5.0 [INFO] [stderr] Checking bitflags v2.5.0 [INFO] [stderr] Checking rand_core v0.6.4 [INFO] [stderr] Checking http-body-util v0.1.1 [INFO] [stderr] Checking proconio v0.4.5 [INFO] [stderr] Checking dotenvy v0.15.7 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stderr] Checking chrono v0.4.38 [INFO] [stderr] Compiling darling_core v0.20.9 [INFO] [stderr] Compiling diesel_table_macro_syntax v0.2.0 [INFO] [stderr] Compiling tokio-macros v2.2.0 [INFO] [stderr] Compiling serde_derive v1.0.200 [INFO] [stderr] Compiling pin-project-internal v1.1.5 [INFO] [stderr] Checking tokio v1.37.0 [INFO] [stderr] Checking pin-project v1.1.5 [INFO] [stderr] Compiling darling_macro v0.20.9 [INFO] [stderr] Compiling darling v0.20.9 [INFO] [stderr] Compiling dsl_auto_type v0.1.1 [INFO] [stderr] Compiling diesel_derives v2.2.1 [INFO] [stderr] Checking tokio-util v0.7.10 [INFO] [stderr] Checking tower v0.4.13 [INFO] [stderr] Checking h2 v0.4.4 [INFO] [stderr] Checking toml_datetime v0.6.8 [INFO] [stderr] Checking serde_spanned v0.6.7 [INFO] [stderr] Checking toml_edit v0.22.20 [INFO] [stderr] Checking diesel v2.2.1 [INFO] [stderr] Checking toml v0.8.19 [INFO] [stderr] Checking hyper v1.3.1 [INFO] [stderr] Checking hyper-util v0.1.3 [INFO] [stderr] Checking rust-playground v0.1.0 (/tmp/fixit) [INFO] [stderr] Migrating src/lib.rs from 2021 edition to 2024 [INFO] [stderr] Migrating src/main.rs from 2021 edition to 2024 [INFO] [stderr] warning: failed to automatically apply fixes suggested by rustc to crate `rust_playground` [INFO] [stderr] [INFO] [stderr] after fixes were automatically applied the compiler reported errors within these files: [INFO] [stderr] [INFO] [stderr] * /rustc/ccf408f4326a858c00dd845a64a86b16f360a801/library/core/src/panic.rs [INFO] [stderr] * src/abc076.rs [INFO] [stderr] * src/abc353.rs [INFO] [stderr] * src/abc367.rs [INFO] [stderr] * src/ahc.rs [INFO] [stderr] * src/atcode_beginers_selection.rs [INFO] [stderr] * src/generic_where_plactice.rs [INFO] [stderr] * src/macro_study.rs [INFO] [stderr] * src/main.rs [INFO] [stderr] * src/q1.rs [INFO] [stderr] * src/q4.rs [INFO] [stderr] * src/q5.rs [INFO] [stderr] * src/rust_study20240812.rs [INFO] [stderr] * src/rust_study_0510.rs [INFO] [stderr] * src/tokiotest.rs [INFO] [stderr] [INFO] [stderr] This likely indicates a bug in either rustc or cargo itself, [INFO] [stderr] and we would appreciate a bug report! You're likely to see [INFO] [stderr] a number of compiler warnings after this message which cargo [INFO] [stderr] attempted to fix but failed. If you could open an issue at [INFO] [stderr] https://github.com/rust-lang/rust/issues [INFO] [stderr] quoting the full output of this command we'd be very appreciative! [INFO] [stderr] Note that you may be able to make some more progress in the near-term [INFO] [stderr] fixing code with the `--broken-code` flag [INFO] [stderr] [INFO] [stderr] The following errors were reported: [INFO] [stderr] error[E0658]: fragment specifier `expr_2021` is unstable [INFO] [stderr] --> src/macro_study.rs:9:6 [INFO] [stderr] | [INFO] [stderr] 9 | ($x:expr_2021) => { [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: see issue #123742 for more information [INFO] [stderr] = help: add `#![feature(expr_fragment_specifier_2024)]` to the crate attributes to enable [INFO] [stderr] = note: this compiler was built on 2024-09-17; consider upgrading it if it is out of date [INFO] [stderr] [INFO] [stderr] error[E0658]: fragment specifier `expr_2021` is unstable [INFO] [stderr] --> src/macro_study.rs:15:6 [INFO] [stderr] | [INFO] [stderr] 15 | ($x:expr_2021, $y:expr_2021) => { [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: see issue #123742 for more information [INFO] [stderr] = help: add `#![feature(expr_fragment_specifier_2024)]` to the crate attributes to enable [INFO] [stderr] = note: this compiler was built on 2024-09-17; consider upgrading it if it is out of date [INFO] [stderr] [INFO] [stderr] error[E0658]: fragment specifier `expr_2021` is unstable [INFO] [stderr] --> src/macro_study.rs:15:20 [INFO] [stderr] | [INFO] [stderr] 15 | ($x:expr_2021, $y:expr_2021) => { [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: see issue #123742 for more information [INFO] [stderr] = help: add `#![feature(expr_fragment_specifier_2024)]` to the crate attributes to enable [INFO] [stderr] = note: this compiler was built on 2024-09-17; consider upgrading it if it is out of date [INFO] [stderr] [INFO] [stderr] error[E0658]: fragment specifier `expr_2021` is unstable [INFO] [stderr] --> src/macro_study.rs:26:8 [INFO] [stderr] | [INFO] [stderr] 26 | ($($x:expr_2021),*) => { [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: see issue #123742 for more information [INFO] [stderr] = help: add `#![feature(expr_fragment_specifier_2024)]` to the crate attributes to enable [INFO] [stderr] = note: this compiler was built on 2024-09-17; consider upgrading it if it is out of date [INFO] [stderr] [INFO] [stderr] error[E0658]: fragment specifier `expr_2021` is unstable [INFO] [stderr] --> src/macro_study.rs:32:8 [INFO] [stderr] | [INFO] [stderr] 32 | ($($x:expr_2021),*) => { [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: see issue #123742 for more information [INFO] [stderr] = help: add `#![feature(expr_fragment_specifier_2024)]` to the crate attributes to enable [INFO] [stderr] = note: this compiler was built on 2024-09-17; consider upgrading it if it is out of date [INFO] [stderr] [INFO] [stderr] warning: type `tile` should have an upper camel case name [INFO] [stderr] --> src/ahc.rs:19:8 [INFO] [stderr] | [INFO] [stderr] 19 | struct tile { [INFO] [stderr] | ^^^^ help: convert the identifier to upper camel case: `Tile` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(non_camel_case_types)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused macro definition: `foo` [INFO] [stderr] --> src/macro_study.rs:3:14 [INFO] [stderr] | [INFO] [stderr] 3 | macro_rules! foo { [INFO] [stderr] | ^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_macros)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unreachable expression [INFO] [stderr] --> src/tokiotest.rs:37:5 [INFO] [stderr] | [INFO] [stderr] 22 | / loop { [INFO] [stderr] 23 | | let mut socket = l.accept().await?; [INFO] [stderr] 24 | | println!("new request!!"); [INFO] [stderr] 25 | | tokio::spawn(async move { [INFO] [stderr] ... | [INFO] [stderr] 35 | | }); [INFO] [stderr] 36 | | } [INFO] [stderr] | |_____- any code following this expression is unreachable [INFO] [stderr] 37 | Ok(()) [INFO] [stderr] | ^^^^^^ unreachable expression [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unreachable_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unreachable statement [INFO] [stderr] --> src/main.rs:41:5 [INFO] [stderr] | [INFO] [stderr] 40 | panic!("end"); [INFO] [stderr] | ------------- any code following this expression is unreachable [INFO] [stderr] 41 | abc367::main(); [INFO] [stderr] | ^^^^^^^^^^^^^^^ unreachable statement [INFO] [stderr] [INFO] [stderr] warning: unused variable: `y` [INFO] [stderr] --> src/ahc.rs:36:13 [INFO] [stderr] | [INFO] [stderr] 36 | for y in 0..y { [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_y` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `x` [INFO] [stderr] --> src/ahc.rs:38:17 [INFO] [stderr] | [INFO] [stderr] 38 | for x in 0..x { [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stderr] [INFO] [stderr] warning: unreachable pattern [INFO] [stderr] --> src/q1.rs:42:9 [INFO] [stderr] | [INFO] [stderr] 41 | _ => println!("hoge"), [INFO] [stderr] | - matches any value [INFO] [stderr] 42 | None => print!("non"), [INFO] [stderr] | ^^^^ no value can reach this [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unreachable_patterns)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `f` [INFO] [stderr] --> src/q1.rs:47:9 [INFO] [stderr] | [INFO] [stderr] 47 | let f = Some(4); [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_f` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `ans` [INFO] [stderr] --> src/q1.rs:85:9 [INFO] [stderr] | [INFO] [stderr] 85 | let ans = q1_3_option(); [INFO] [stderr] | ^^^ help: if this is intentional, prefix it with an underscore: `_ans` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `a` [INFO] [stderr] --> src/q1.rs:90:9 [INFO] [stderr] | [INFO] [stderr] 90 | let a = q1_4_esult(32); [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_a` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `a` [INFO] [stderr] --> src/q1.rs:160:28 [INFO] [stderr] | [INFO] [stderr] 160 | fn t<'a, 'b: 'a, T: Debug>(a: &'a str, b: &'b T) { [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_a` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `b` [INFO] [stderr] --> src/q1.rs:160:40 [INFO] [stderr] | [INFO] [stderr] 160 | fn t<'a, 'b: 'a, T: Debug>(a: &'a str, b: &'b T) { [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_b` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `x` [INFO] [stderr] --> src/q1.rs:164:22 [INFO] [stderr] | [INFO] [stderr] 164 | fn f<'a, T: Display>(x: &'a str, y: &'a T) {} [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `y` [INFO] [stderr] --> src/q1.rs:164:34 [INFO] [stderr] | [INFO] [stderr] 164 | fn f<'a, T: Display>(x: &'a str, y: &'a T) {} [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_y` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `str` [INFO] [stderr] --> src/q4.rs:70:9 [INFO] [stderr] | [INFO] [stderr] 70 | let str = String::new(); [INFO] [stderr] | ^^^ help: if this is intentional, prefix it with an underscore: `_str` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `h` [INFO] [stderr] --> src/q4.rs:72:9 [INFO] [stderr] | [INFO] [stderr] 72 | let h: HashMap = HashMap::new(); [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_h` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `l` [INFO] [stderr] --> src/q4.rs:87:17 [INFO] [stderr] | [INFO] [stderr] 87 | let l = reader.read_line(&mut b).unwrap(); [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_l` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `v` [INFO] [stderr] --> src/q4.rs:92:21 [INFO] [stderr] | [INFO] [stderr] 92 | let v = locked_count_map.get(word).unwrap(); [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_v` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `e` [INFO] [stderr] --> src/q4.rs:93:21 [INFO] [stderr] | [INFO] [stderr] 93 | let e = locked_count_map.entry("a".to_string()).or_insert(3); [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_e` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `list` [INFO] [stderr] --> src/q5.rs:3:9 [INFO] [stderr] | [INFO] [stderr] 3 | let list = [6, 7, 8, 9, 8, 7, 6, 4, 7, 4]; [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_list` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `v_list` [INFO] [stderr] --> src/q5.rs:4:9 [INFO] [stderr] | [INFO] [stderr] 4 | let v_list: Vec = vec![6, 7, 8, 9, 8, 7, 6, 4, 7, 4]; [INFO] [stderr] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_v_list` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `i` [INFO] [stderr] --> src/abc076.rs:9:9 [INFO] [stderr] | [INFO] [stderr] 9 | for i in 0..n { [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `index` [INFO] [stderr] --> src/abc353.rs:44:19 [INFO] [stderr] | [INFO] [stderr] 44 | Some((index, &value)) => { [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_index` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `min` [INFO] [stderr] --> src/atcode_beginers_selection.rs:30:9 [INFO] [stderr] | [INFO] [stderr] 30 | let min = a.iter().min().unwrap().clone(); [INFO] [stderr] | ^^^ help: if this is intentional, prefix it with an underscore: `_min` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `k` [INFO] [stderr] --> src/atcode_beginers_selection.rs:53:16 [INFO] [stderr] | [INFO] [stderr] 53 | (n, m, k):(i32,i32,i32), [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_k` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `a` [INFO] [stderr] --> src/atcode_beginers_selection.rs:54:9 [INFO] [stderr] | [INFO] [stderr] 54 | a: [[i32;n];n], [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_a` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `s` [INFO] [stderr] --> src/atcode_beginers_selection.rs:55:9 [INFO] [stderr] | [INFO] [stderr] 55 | s:[[i32;3];m*3] [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `y` [INFO] [stderr] --> src/rust_study_0510.rs:76:9 [INFO] [stderr] | [INFO] [stderr] 76 | let y = x; [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_y` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `t` [INFO] [stderr] --> src/tokiotest.rs:13:9 [INFO] [stderr] | [INFO] [stderr] 13 | let t = TcpStream::connect("example.com:80").await?; [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_t` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `request` [INFO] [stderr] --> src/tokiotest.rs:15:9 [INFO] [stderr] | [INFO] [stderr] 15 | let request = b"GET HTTP1.1 example.com"; [INFO] [stderr] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_request` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `k` [INFO] [stderr] --> src/abc367.rs:46:13 [INFO] [stderr] | [INFO] [stderr] 46 | (n, k): (i32, i32), [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_k` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `n` [INFO] [stderr] --> src/generic_where_plactice.rs:2:9 [INFO] [stderr] | [INFO] [stderr] 2 | let n = N { s: 4 }; [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_n` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `a` [INFO] [stderr] --> src/rust_study20240812.rs:120:9 [INFO] [stderr] | [INFO] [stderr] 120 | let a = s.size(); [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_a` [INFO] [stderr] [INFO] [stderr] error: aborting due to 5 previous errors; 33 warnings emitted [INFO] [stderr] [INFO] [stderr] For more information about this error, try `rustc --explain E0658`. [INFO] [stderr] Original diagnostics will follow. [INFO] [stderr] [INFO] [stdout] warning: `gen` is a keyword in the 2024 edition [INFO] [stdout] --> src/q1.rs:105:24 [INFO] [stdout] | [INFO] [stdout] 105 | let r_num: i32 = r.gen(); [INFO] [stdout] | ^^^ help: you can use a raw identifier to stay compatible: `r#gen` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2021) but is a hard error in Rust 2024! [INFO] [stdout] = note: for more information, see issue #49716 [INFO] [stdout] = note: `--force-warn keyword-idents-2024` implied by `--force-warn rust-2024-compatibility` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::io::Stdin` [INFO] [stdout] --> src/ahc.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use std::io::Stdin; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type `tile` should have an upper camel case name [INFO] [stdout] --> src/ahc.rs:20:8 [INFO] [stdout] | [INFO] [stdout] 20 | struct tile { [INFO] [stdout] | ^^^^ help: convert the identifier to upper camel case: `Tile` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_camel_case_types)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused macro definition: `foo` [INFO] [stdout] --> src/macro_study.rs:3:14 [INFO] [stdout] | [INFO] [stdout] 3 | macro_rules! foo { [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_macros)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition [INFO] [stdout] --> src/macro_study.rs:9:9 [INFO] [stdout] | [INFO] [stdout] 9 | ($x:expr) => { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see Migration Guide [INFO] [stdout] = note: `--force-warn edition-2024-expr-fragment-specifier` implied by `--force-warn rust-2024-compatibility` [INFO] [stdout] help: to keep the existing behavior, use the `expr_2021` fragment specifier [INFO] [stdout] | [INFO] [stdout] 9 | ($x:expr_2021) => { [INFO] [stdout] | ~~~~~~~~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition [INFO] [stdout] --> src/macro_study.rs:15:9 [INFO] [stdout] | [INFO] [stdout] 15 | ($x:expr, $y:expr) => { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see Migration Guide [INFO] [stdout] help: to keep the existing behavior, use the `expr_2021` fragment specifier [INFO] [stdout] | [INFO] [stdout] 15 | ($x:expr_2021, $y:expr) => { [INFO] [stdout] | ~~~~~~~~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition [INFO] [stdout] --> src/macro_study.rs:15:18 [INFO] [stdout] | [INFO] [stdout] 15 | ($x:expr, $y:expr) => { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see Migration Guide [INFO] [stdout] help: to keep the existing behavior, use the `expr_2021` fragment specifier [INFO] [stdout] | [INFO] [stdout] 15 | ($x:expr, $y:expr_2021) => { [INFO] [stdout] | ~~~~~~~~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition [INFO] [stdout] --> src/macro_study.rs:26:11 [INFO] [stdout] | [INFO] [stdout] 26 | ($($x:expr),*) => { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see Migration Guide [INFO] [stdout] help: to keep the existing behavior, use the `expr_2021` fragment specifier [INFO] [stdout] | [INFO] [stdout] 26 | ($($x:expr_2021),*) => { [INFO] [stdout] | ~~~~~~~~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition [INFO] [stdout] --> src/macro_study.rs:32:11 [INFO] [stdout] | [INFO] [stdout] 32 | ($($x:expr),*) => { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see Migration Guide [INFO] [stdout] help: to keep the existing behavior, use the `expr_2021` fragment specifier [INFO] [stdout] | [INFO] [stdout] 32 | ($($x:expr_2021),*) => { [INFO] [stdout] | ~~~~~~~~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Read` and `self` [INFO] [stdout] --> src/q4.rs:14:30 [INFO] [stdout] | [INFO] [stdout] 14 | io::{BufRead, BufReader, Read, Seek, SeekFrom}, [INFO] [stdout] | ^^^^ [INFO] [stdout] 15 | sync::{Arc, Mutex}, [INFO] [stdout] 16 | thread::{self, spawn}, [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::fs::File` [INFO] [stdout] --> src/read_json.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::fs::File; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Value` and `value` [INFO] [stdout] --> src/read_json.rs:3:18 [INFO] [stdout] | [INFO] [stdout] 3 | use serde_json::{value, Value}; [INFO] [stdout] | ^^^^^ ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `chrono::prelude` [INFO] [stdout] --> src/rust_study_0510.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use chrono::prelude; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `default`, `fs::File`, and `io::Read` [INFO] [stdout] --> src/rust_study_0510.rs:2:11 [INFO] [stdout] | [INFO] [stdout] 2 | use std::{default, fs::File, io::Read}; [INFO] [stdout] | ^^^^^^^ ^^^^^^^^ ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `diesel::pg::PgConnection` [INFO] [stdout] --> src/main.rs:25:5 [INFO] [stdout] | [INFO] [stdout] 25 | use diesel::pg::PgConnection; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `fs::File` and `io::Read` [INFO] [stdout] --> src/rust_study20240812_anyhow.rs:1:11 [INFO] [stdout] | [INFO] [stdout] 1 | use std::{fs::File, io::Read}; [INFO] [stdout] | ^^^^^^^^ ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Ok` and `Result` [INFO] [stdout] --> src/rust_study20240812_anyhow.rs:3:14 [INFO] [stdout] | [INFO] [stdout] 3 | use anyhow::{Ok, Result}; [INFO] [stdout] | ^^ ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `diesel::result` [INFO] [stdout] --> src/rust_study20240812_anyhow.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use diesel::result; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable expression [INFO] [stdout] --> src/tokiotest.rs:37:5 [INFO] [stdout] | [INFO] [stdout] 22 | / loop { [INFO] [stdout] 23 | | let mut socket = l.accept().await?; [INFO] [stdout] 24 | | println!("new request!!"); [INFO] [stdout] 25 | | tokio::spawn(async move { [INFO] [stdout] ... | [INFO] [stdout] 35 | | }); [INFO] [stdout] 36 | | } [INFO] [stdout] | |_____- any code following this expression is unreachable [INFO] [stdout] 37 | Ok(()) [INFO] [stdout] | ^^^^^^ unreachable expression [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable statement [INFO] [stdout] --> src/main.rs:42:5 [INFO] [stdout] | [INFO] [stdout] 41 | panic!("end"); [INFO] [stdout] | ------------- any code following this expression is unreachable [INFO] [stdout] 42 | abc367::main(); [INFO] [stdout] | ^^^^^^^^^^^^^^^ unreachable statement [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `y` [INFO] [stdout] --> src/ahc.rs:37:13 [INFO] [stdout] | [INFO] [stdout] 37 | for y in 0..y { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_y` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/ahc.rs:39:17 [INFO] [stdout] | [INFO] [stdout] 39 | for x in 0..x { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable pattern [INFO] [stdout] --> src/q1.rs:42:9 [INFO] [stdout] | [INFO] [stdout] 41 | _ => println!("hoge"), [INFO] [stdout] | - matches any value [INFO] [stdout] 42 | None => print!("non"), [INFO] [stdout] | ^^^^ no value can reach this [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_patterns)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `f` [INFO] [stdout] --> src/q1.rs:47:9 [INFO] [stdout] | [INFO] [stdout] 47 | let f = Some(4); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_f` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `ans` [INFO] [stdout] --> src/q1.rs:85:9 [INFO] [stdout] | [INFO] [stdout] 85 | let ans = q1_3_option(); [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_ans` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `a` [INFO] [stdout] --> src/q1.rs:90:9 [INFO] [stdout] | [INFO] [stdout] 90 | let a = q1_4_esult(32); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_a` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `a` [INFO] [stdout] --> src/q1.rs:160:28 [INFO] [stdout] | [INFO] [stdout] 160 | fn t<'a, 'b: 'a, T: Debug>(a: &'a str, b: &'b T) { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_a` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `b` [INFO] [stdout] --> src/q1.rs:160:40 [INFO] [stdout] | [INFO] [stdout] 160 | fn t<'a, 'b: 'a, T: Debug>(a: &'a str, b: &'b T) { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_b` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/q1.rs:164:22 [INFO] [stdout] | [INFO] [stdout] 164 | fn f<'a, T: Display>(x: &'a str, y: &'a T) {} [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `y` [INFO] [stdout] --> src/q1.rs:164:34 [INFO] [stdout] | [INFO] [stdout] 164 | fn f<'a, T: Display>(x: &'a str, y: &'a T) {} [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_y` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/q4.rs:23:9 [INFO] [stdout] | [INFO] [stdout] 23 | let mut arcTest = Arc::new(42); [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: `str` [INFO] [stdout] --> src/q4.rs:70:13 [INFO] [stdout] | [INFO] [stdout] 70 | let mut str = String::new(); [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_str` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `h` [INFO] [stdout] --> src/q4.rs:72:13 [INFO] [stdout] | [INFO] [stdout] 72 | let mut h: HashMap = HashMap::new(); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_h` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `l` [INFO] [stdout] --> src/q4.rs:87:17 [INFO] [stdout] | [INFO] [stdout] 87 | let l = reader.read_line(&mut b).unwrap(); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_l` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `v` [INFO] [stdout] --> src/q4.rs:92:21 [INFO] [stdout] | [INFO] [stdout] 92 | let v = locked_count_map.get(word).unwrap(); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_v` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `e` [INFO] [stdout] --> src/q4.rs:93:21 [INFO] [stdout] | [INFO] [stdout] 93 | let e = locked_count_map.entry("a".to_string()).or_insert(3); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_e` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/q4.rs:70:9 [INFO] [stdout] | [INFO] [stdout] 70 | let mut str = String::new(); [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/q4.rs:71:9 [INFO] [stdout] | [INFO] [stdout] 71 | let mut countMap: Arc>> = Arc::new(Mutex::new(HashMap::new())); [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/q4.rs:72:9 [INFO] [stdout] | [INFO] [stdout] 72 | let mut h: HashMap = HashMap::new(); [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/q4.rs:74:9 [INFO] [stdout] | [INFO] [stdout] 74 | let mut f = File::open("memo.md").unwrap(); // file::openはファイルハンドラだから100TB読むわけではない [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `list` [INFO] [stdout] --> src/q5.rs:3:9 [INFO] [stdout] | [INFO] [stdout] 3 | let list = [6, 7, 8, 9, 8, 7, 6, 4, 7, 4]; [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_list` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `v_list` [INFO] [stdout] --> src/q5.rs:4:9 [INFO] [stdout] | [INFO] [stdout] 4 | let v_list: Vec = vec![6, 7, 8, 9, 8, 7, 6, 4, 7, 4]; [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_v_list` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/abc076.rs:9:9 [INFO] [stdout] | [INFO] [stdout] 9 | for i in 0..n { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `index` [INFO] [stdout] --> src/abc353.rs:44:19 [INFO] [stdout] | [INFO] [stdout] 44 | Some((index, &value)) => { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_index` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `min` [INFO] [stdout] --> src/atcode_beginers_selection.rs:30:9 [INFO] [stdout] | [INFO] [stdout] 30 | let min = a.iter().min().unwrap().clone(); [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_min` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `k` [INFO] [stdout] --> src/atcode_beginers_selection.rs:53:16 [INFO] [stdout] | [INFO] [stdout] 53 | (n, m, k):(i32,i32,i32), [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_k` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `a` [INFO] [stdout] --> src/atcode_beginers_selection.rs:54:9 [INFO] [stdout] | [INFO] [stdout] 54 | a: [[i32;n];n], [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_a` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s` [INFO] [stdout] --> src/atcode_beginers_selection.rs:55:9 [INFO] [stdout] | [INFO] [stdout] 55 | s:[[i32;3];m*3] [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/rust_study_0510.rs:40:9 [INFO] [stdout] | [INFO] [stdout] 40 | let mut even: Vec<&str> = Vec::new(); [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `y` [INFO] [stdout] --> src/rust_study_0510.rs:78:9 [INFO] [stdout] | [INFO] [stdout] 78 | let y = x; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_y` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `t` [INFO] [stdout] --> src/tokiotest.rs:13:13 [INFO] [stdout] | [INFO] [stdout] 13 | let mut t = TcpStream::connect("example.com:80").await?; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_t` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `request` [INFO] [stdout] --> src/tokiotest.rs:15:9 [INFO] [stdout] | [INFO] [stdout] 15 | let request = b"GET HTTP1.1 example.com"; [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_request` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/tokiotest.rs:13:9 [INFO] [stdout] | [INFO] [stdout] 13 | let mut t = TcpStream::connect("example.com:80").await?; [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `k` [INFO] [stdout] --> src/abc367.rs:46:13 [INFO] [stdout] | [INFO] [stdout] 46 | (n, k): (i32, i32), [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_k` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `n` [INFO] [stdout] --> src/generic_where_plactice.rs:2:9 [INFO] [stdout] | [INFO] [stdout] 2 | let n = N { s: 4 }; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_n` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `a` [INFO] [stdout] --> src/rust_study20240812.rs:120:9 [INFO] [stdout] | [INFO] [stdout] 120 | let a = s.size(); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_a` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `tile` is never constructed [INFO] [stdout] --> src/ahc.rs:20:8 [INFO] [stdout] | [INFO] [stdout] 20 | struct tile { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Grid` is never constructed [INFO] [stdout] --> src/ahc.rs:27:8 [INFO] [stdout] | [INFO] [stdout] 27 | struct Grid { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `up`, `down`, `left`, `right`, and `display` are never used [INFO] [stdout] --> src/ahc.rs:33:8 [INFO] [stdout] | [INFO] [stdout] 32 | impl Grid { [INFO] [stdout] | --------- associated items in this implementation [INFO] [stdout] 33 | fn new(x: i32, y: i32) -> Grid { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 46 | fn up(&mut self) { [INFO] [stdout] | ^^ [INFO] [stdout] ... [INFO] [stdout] 49 | fn down(&mut self) { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 52 | fn left(&mut self) { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 55 | fn right(&mut self) { [INFO] [stdout] | ^^^^^ [INFO] [stdout] ... [INFO] [stdout] 58 | fn display(&mut self) { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `main` is never used [INFO] [stdout] --> src/ahc.rs:65:8 [INFO] [stdout] | [INFO] [stdout] 65 | pub fn main() { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `read_input` is never used [INFO] [stdout] --> src/ahc.rs:76:8 [INFO] [stdout] | [INFO] [stdout] 76 | pub fn read_input() { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `hello` is never used [INFO] [stdout] --> src/hypertest.rs:12:10 [INFO] [stdout] | [INFO] [stdout] 12 | async fn hello(_: Request) -> Result>, Infallible> { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `main` is never used [INFO] [stdout] --> src/hypertest.rs:17:14 [INFO] [stdout] | [INFO] [stdout] 17 | pub async fn main() -> Result<(), Box> { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `name` and `age` are never read [INFO] [stdout] --> src/macro_study.rs:21:5 [INFO] [stdout] | [INFO] [stdout] 20 | pub struct Person { [INFO] [stdout] | ------ fields in this struct [INFO] [stdout] 21 | name: String, [INFO] [stdout] | ^^^^ [INFO] [stdout] 22 | age: i32, [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `q1_1` is never used [INFO] [stdout] --> src/q1.rs:10:8 [INFO] [stdout] | [INFO] [stdout] 10 | pub fn q1_1() { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `q1_3_option` is never used [INFO] [stdout] --> src/q1.rs:30:4 [INFO] [stdout] | [INFO] [stdout] 30 | fn q1_3_option() -> Option { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `q1_3_match` is never used [INFO] [stdout] --> src/q1.rs:38:4 [INFO] [stdout] | [INFO] [stdout] 38 | fn q1_3_match() { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `q1_3_expect` is never used [INFO] [stdout] --> src/q1.rs:46:4 [INFO] [stdout] | [INFO] [stdout] 46 | fn q1_3_expect() { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `q1_4_esult` is never used [INFO] [stdout] --> src/q1.rs:54:4 [INFO] [stdout] | [INFO] [stdout] 54 | fn q1_4_esult(i: i32) -> Result { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `q1_4_fileopen` is never used [INFO] [stdout] --> src/q1.rs:65:4 [INFO] [stdout] | [INFO] [stdout] 65 | fn q1_4_fileopen(path: &Path) -> Result { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `q1_4_match` is never used [INFO] [stdout] --> src/q1.rs:73:4 [INFO] [stdout] | [INFO] [stdout] 73 | fn q1_4_match() { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `main` is never used [INFO] [stdout] --> src/q1.rs:81:8 [INFO] [stdout] | [INFO] [stdout] 81 | pub fn main() { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `err_handling` is never used [INFO] [stdout] --> src/q1.rs:103:8 [INFO] [stdout] | [INFO] [stdout] 103 | pub fn err_handling() -> Result { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `longest` is never used [INFO] [stdout] --> src/q1.rs:114:4 [INFO] [stdout] | [INFO] [stdout] 114 | fn longest<'a>(x: &'a str, y: &'a str) -> &'a str { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Product` is never constructed [INFO] [stdout] --> src/q1.rs:129:8 [INFO] [stdout] | [INFO] [stdout] 129 | struct Product { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `PriceFilter` is never used [INFO] [stdout] --> src/q1.rs:134:7 [INFO] [stdout] | [INFO] [stdout] 134 | trait PriceFilter { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `filter_products` is never used [INFO] [stdout] --> src/q1.rs:148:4 [INFO] [stdout] | [INFO] [stdout] 148 | fn filter_products(u: Vec, t: T) -> Vec { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `t` is never used [INFO] [stdout] --> src/q1.rs:160:4 [INFO] [stdout] | [INFO] [stdout] 160 | fn t<'a, 'b: 'a, T: Debug>(a: &'a str, b: &'b T) { [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `f` is never used [INFO] [stdout] --> src/q1.rs:164:4 [INFO] [stdout] | [INFO] [stdout] 164 | fn f<'a, T: Display>(x: &'a str, y: &'a T) {} [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `q1` is never used [INFO] [stdout] --> src/q2.rs:1:8 [INFO] [stdout] | [INFO] [stdout] 1 | pub fn q1(v: Vec) -> i32 { [INFO] [stdout] | ^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `main` is never used [INFO] [stdout] --> src/q3.rs:3:8 [INFO] [stdout] | [INFO] [stdout] 3 | pub fn main() { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `main` is never used [INFO] [stdout] --> src/q4.rs:19:8 [INFO] [stdout] | [INFO] [stdout] 19 | pub fn main() { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `q4_pre` is never used [INFO] [stdout] --> src/q4.rs:36:4 [INFO] [stdout] | [INFO] [stdout] 36 | fn q4_pre() { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `q5_more_thread` is never used [INFO] [stdout] --> src/q4.rs:69:4 [INFO] [stdout] | [INFO] [stdout] 69 | fn q5_more_thread() { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `main` is never used [INFO] [stdout] --> src/q5.rs:2:4 [INFO] [stdout] | [INFO] [stdout] 2 | fn main() { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `a` is never used [INFO] [stdout] --> src/abc351_a.rs:7:8 [INFO] [stdout] | [INFO] [stdout] 7 | pub fn a() { [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `c` is never used [INFO] [stdout] --> src/abc351_a.rs:39:8 [INFO] [stdout] | [INFO] [stdout] 39 | pub fn c() {} [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `b` is never used [INFO] [stdout] --> src/abc352_a.rs:24:4 [INFO] [stdout] | [INFO] [stdout] 24 | fn b() { [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `a` is never used [INFO] [stdout] --> src/abc353.rs:10:8 [INFO] [stdout] | [INFO] [stdout] 10 | pub fn a() { [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `b` is never used [INFO] [stdout] --> src/abc353.rs:33:8 [INFO] [stdout] | [INFO] [stdout] 33 | pub fn b() { [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `a` is never used [INFO] [stdout] --> src/atcode_beginers_selection.rs:8:8 [INFO] [stdout] | [INFO] [stdout] 8 | pub fn a() { [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `abc081b` is never used [INFO] [stdout] --> src/atcode_beginers_selection.rs:25:8 [INFO] [stdout] | [INFO] [stdout] 25 | pub fn abc081b() { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `ahc032_a` is never used [INFO] [stdout] --> src/atcode_beginers_selection.rs:51:8 [INFO] [stdout] | [INFO] [stdout] 51 | pub fn ahc032_a() { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `schema` and `extends` are never read [INFO] [stdout] --> src/read_json.rs:15:5 [INFO] [stdout] | [INFO] [stdout] 13 | struct Renovate { [INFO] [stdout] | -------- fields in this struct [INFO] [stdout] 14 | #[serde(rename = "$schema")] [INFO] [stdout] 15 | schema: String, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 16 | extends: Vec, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Renovate` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `main` is never used [INFO] [stdout] --> src/read_json.rs:19:8 [INFO] [stdout] | [INFO] [stdout] 19 | pub fn main() { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `mainold` is never used [INFO] [stdout] --> src/rust_study_0510.rs:4:8 [INFO] [stdout] | [INFO] [stdout] 4 | pub fn mainold() { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `main` is never used [INFO] [stdout] --> src/rust_study_0510.rs:25:4 [INFO] [stdout] | [INFO] [stdout] 25 | fn main() { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `process_strings` is never used [INFO] [stdout] --> src/rust_study_0510.rs:38:4 [INFO] [stdout] | [INFO] [stdout] 38 | fn process_strings(v: &Vec) -> StringStats { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `StringStats` is never constructed [INFO] [stdout] --> src/rust_study_0510.rs:50:8 [INFO] [stdout] | [INFO] [stdout] 50 | struct StringStats<'a> { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `errsample1` is never used [INFO] [stdout] --> src/rust_study_0510.rs:63:8 [INFO] [stdout] | [INFO] [stdout] 63 | pub fn errsample1() { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `processvec` is never used [INFO] [stdout] --> src/rust_study_0510.rs:71:4 [INFO] [stdout] | [INFO] [stdout] 71 | fn processvec(x: &Box) { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `oksample1` is never used [INFO] [stdout] --> src/rust_study_0510.rs:75:8 [INFO] [stdout] | [INFO] [stdout] 75 | pub fn oksample1() { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `server` is never used [INFO] [stdout] --> src/tokiotest.rs:19:14 [INFO] [stdout] | [INFO] [stdout] 19 | pub async fn server() -> Result<(), Box> { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `a` is never used [INFO] [stdout] --> src/abc129.rs:12:4 [INFO] [stdout] | [INFO] [stdout] 12 | fn a() { [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `a` is never used [INFO] [stdout] --> src/abc362.rs:10:8 [INFO] [stdout] | [INFO] [stdout] 10 | pub fn a() { [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `b` is never used [INFO] [stdout] --> src/abc362.rs:24:8 [INFO] [stdout] | [INFO] [stdout] 24 | pub fn b() {} [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `c` is never used [INFO] [stdout] --> src/abc367.rs:42:8 [INFO] [stdout] | [INFO] [stdout] 42 | pub fn c() { [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `solve_lake_rest_area_problem` is never used [INFO] [stdout] --> src/abc367.rs:55:4 [INFO] [stdout] | [INFO] [stdout] 55 | fn solve_lake_rest_area_problem(n: usize, m: i64, a: &[i64]) -> i64 { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `solve_lake_rest_area_problem2` is never used [INFO] [stdout] --> src/abc367.rs:83:4 [INFO] [stdout] | [INFO] [stdout] 83 | fn solve_lake_rest_area_problem2(n: usize, m: i64, a: &[i64]) -> i64 { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `solve_lake_rest_area_problem3` is never used [INFO] [stdout] --> src/abc367.rs:105:4 [INFO] [stdout] | [INFO] [stdout] 105 | fn solve_lake_rest_area_problem3(n: usize, m: i64, a: &[i64]) -> i64 { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `solve_lake_rest_area_problem4` is never used [INFO] [stdout] --> src/abc367.rs:123:4 [INFO] [stdout] | [INFO] [stdout] 123 | fn solve_lake_rest_area_problem4(n: usize, m: i64, a: &[i64]) -> i64 { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `name`, `version`, `edition`, `license`, and `description` are never read [INFO] [stdout] --> src/cargo_toml_parse.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 8 | struct Package { [INFO] [stdout] | ------- fields in this struct [INFO] [stdout] 9 | name: String, [INFO] [stdout] | ^^^^ [INFO] [stdout] 10 | version: String, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] 11 | edition: String, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] 12 | license: String, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] 13 | description: String, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Package` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/cargo_toml_parse.rs:25:12 [INFO] [stdout] | [INFO] [stdout] 25 | Simple(String), [INFO] [stdout] | ------ ^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `Dependency` 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] 25 | Simple(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `version` and `features` are never read [INFO] [stdout] --> src/cargo_toml_parse.rs:27:9 [INFO] [stdout] | [INFO] [stdout] 26 | Detailed { [INFO] [stdout] | -------- fields in this variant [INFO] [stdout] 27 | version: String, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] 28 | features: Option>, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Dependency` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `package` and `dependencies` are never read [INFO] [stdout] --> src/cargo_toml_parse.rs:34:5 [INFO] [stdout] | [INFO] [stdout] 33 | struct Cargo { [INFO] [stdout] | ----- fields in this struct [INFO] [stdout] 34 | package: Package, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] 35 | dependencies: HashMap, [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `main` is never used [INFO] [stdout] --> src/cargo_toml_parse.rs:38:8 [INFO] [stdout] | [INFO] [stdout] 38 | pub fn main() { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `SS` is never used [INFO] [stdout] --> src/generic_where_plactice.rs:6:7 [INFO] [stdout] | [INFO] [stdout] 6 | trait SS { [INFO] [stdout] | ^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `s` is never read [INFO] [stdout] --> src/generic_where_plactice.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 9 | struct N { [INFO] [stdout] | - field in this struct [INFO] [stdout] 10 | s: T, [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `genericsample` is never used [INFO] [stdout] --> src/generic_where_plactice.rs:20:4 [INFO] [stdout] | [INFO] [stdout] 20 | fn genericsample(argx: X) -> i32 [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `koukai` is never used [INFO] [stdout] --> src/generic_where_plactice.rs:27:4 [INFO] [stdout] | [INFO] [stdout] 27 | fn koukai() { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `koukai3` is never used [INFO] [stdout] --> src/generic_where_plactice.rs:39:4 [INFO] [stdout] | [INFO] [stdout] 39 | fn koukai3() { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `q1` is never used [INFO] [stdout] --> src/rust_study20240812.rs:43:8 [INFO] [stdout] | [INFO] [stdout] 43 | pub fn q1() { [INFO] [stdout] | ^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `Perimeter` is never used [INFO] [stdout] --> src/rust_study20240812.rs:90:7 [INFO] [stdout] | [INFO] [stdout] 90 | trait Perimeter { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Rectangle` is never constructed [INFO] [stdout] --> src/rust_study20240812.rs:93:8 [INFO] [stdout] | [INFO] [stdout] 93 | struct Rectangle { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `size` is never used [INFO] [stdout] --> src/rust_study20240812.rs:110:8 [INFO] [stdout] | [INFO] [stdout] 108 | impl Rectangle { [INFO] [stdout] | -------------- method in this implementation [INFO] [stdout] 109 | //↑をやりたい場合はこうやって分割する。そうすると下のmainの中で認識できる。 [INFO] [stdout] 110 | fn size(&self) -> i32 { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `main` is never used [INFO] [stdout] --> src/rust_study20240812.rs:115:8 [INFO] [stdout] | [INFO] [stdout] 115 | pub fn main() { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `q2` is never used [INFO] [stdout] --> src/rust_study20240812.rs:148:8 [INFO] [stdout] | [INFO] [stdout] 148 | pub fn q2() { [INFO] [stdout] | ^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `main` is never used [INFO] [stdout] --> src/rust_study20240812_anyhow.rs:31:8 [INFO] [stdout] | [INFO] [stdout] 31 | pub fn main() { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: `if let` assigns a shorter lifetime since Edition 2024 [INFO] [stdout] --> src/hypertest.rs:34:16 [INFO] [stdout] | [INFO] [stdout] 34 | if let Err(err) = http1::Builder::new() [INFO] [stdout] | ________________^ - [INFO] [stdout] | |_______________________________| [INFO] [stdout] 35 | || // `service_fn` converts our function in a `Service` [INFO] [stdout] 36 | || .serve_connection(io, service_fn(hello)) [INFO] [stdout] 37 | || .await [INFO] [stdout] | ||______________________^ this value has a significant drop implementation which may observe a major change in drop order and requires your discretion [INFO] [stdout] | |______________________| [INFO] [stdout] | [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see issue #124085 [INFO] [stdout] help: the value is now dropped here in Edition 2024 [INFO] [stdout] --> src/hypertest.rs:40:13 [INFO] [stdout] | [INFO] [stdout] 40 | } [INFO] [stdout] | ^ [INFO] [stdout] = note: `--force-warn if-let-rescope` implied by `--force-warn rust-2024-compatibility` [INFO] [stdout] help: a `match` with a single arm can preserve the drop order up to Edition 2021 [INFO] [stdout] | [INFO] [stdout] 34 ~ match http1::Builder::new() [INFO] [stdout] 35 | // `service_fn` converts our function in a `Service` [INFO] [stdout] 36 | .serve_connection(io, service_fn(hello)) [INFO] [stdout] 37 | .await [INFO] [stdout] 38 ~ { Err(err) => { [INFO] [stdout] 39 | eprintln!("Error serving connection: {:?}", err); [INFO] [stdout] 40 ~ } _ => {}} [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `arcTest` should have a snake case name [INFO] [stdout] --> src/q4.rs:23:13 [INFO] [stdout] | [INFO] [stdout] 23 | let mut arcTest = Arc::new(42); [INFO] [stdout] | ^^^^^^^ help: convert the identifier to snake case: `arc_test` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `arcMutexTest` should have a snake case name [INFO] [stdout] --> src/q4.rs:24:9 [INFO] [stdout] | [INFO] [stdout] 24 | let arcMutexTest = Arc::new(Mutex::new(43)); [INFO] [stdout] | ^^^^^^^^^^^^ help: convert the identifier to snake case: `arc_mutex_test` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `arcMutexTestInner` should have a snake case name [INFO] [stdout] --> src/q4.rs:25:13 [INFO] [stdout] | [INFO] [stdout] 25 | let mut arcMutexTestInner = arcMutexTest.lock().unwrap(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `arc_mutex_test_inner` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `countMap` should have a snake case name [INFO] [stdout] --> src/q4.rs:71:13 [INFO] [stdout] | [INFO] [stdout] 71 | let mut countMap: Arc>> = Arc::new(Mutex::new(HashMap::new())); [INFO] [stdout] | ^^^^^^^^ help: convert the identifier to snake case: `count_map` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `countMap` should have a snake case name [INFO] [stdout] --> src/q4.rs:78:13 [INFO] [stdout] | [INFO] [stdout] 78 | let countMap = Arc::clone(&countMap); [INFO] [stdout] | ^^^^^^^^ help: convert the identifier to snake case: `count_map` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/generic_where_plactice.rs:52:5 [INFO] [stdout] | [INFO] [stdout] 52 | koukai2(l); [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] 52 | let _ = koukai2(l); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 135 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] warning: failed to automatically apply fixes suggested by rustc to crate `rust_playground` [INFO] [stderr] [INFO] [stderr] after fixes were automatically applied the compiler reported errors within these files: [INFO] [stderr] [INFO] [stderr] * /rustc/ccf408f4326a858c00dd845a64a86b16f360a801/library/core/src/panic.rs [INFO] [stderr] * src/abc076.rs [INFO] [stderr] * src/abc353.rs [INFO] [stderr] * src/abc367.rs [INFO] [stderr] * src/ahc.rs [INFO] [stderr] * src/atcode_beginers_selection.rs [INFO] [stderr] * src/generic_where_plactice.rs [INFO] [stderr] * src/macro_study.rs [INFO] [stderr] * src/main.rs [INFO] [stderr] * src/q1.rs [INFO] [stderr] * src/q4.rs [INFO] [stderr] * src/q5.rs [INFO] [stderr] * src/rust_study20240812.rs [INFO] [stderr] * src/rust_study_0510.rs [INFO] [stderr] * src/tokiotest.rs [INFO] [stderr] [INFO] [stderr] This likely indicates a bug in either rustc or cargo itself, [INFO] [stderr] and we would appreciate a bug report! You're likely to see [INFO] [stderr] a number of compiler warnings after this message which cargo [INFO] [stderr] attempted to fix but failed. If you could open an issue at [INFO] [stderr] https://github.com/rust-lang/rust/issues [INFO] [stderr] quoting the full output of this command we'd be very appreciative! [INFO] [stderr] Note that you may be able to make some more progress in the near-term [INFO] [stderr] fixing code with the `--broken-code` flag [INFO] [stderr] [INFO] [stderr] The following errors were reported: [INFO] [stderr] error[E0658]: fragment specifier `expr_2021` is unstable [INFO] [stderr] --> src/macro_study.rs:9:6 [INFO] [stderr] | [INFO] [stderr] 9 | ($x:expr_2021) => { [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: see issue #123742 for more information [INFO] [stderr] = help: add `#![feature(expr_fragment_specifier_2024)]` to the crate attributes to enable [INFO] [stderr] = note: this compiler was built on 2024-09-17; consider upgrading it if it is out of date [INFO] [stderr] [INFO] [stderr] error[E0658]: fragment specifier `expr_2021` is unstable [INFO] [stderr] --> src/macro_study.rs:15:6 [INFO] [stderr] | [INFO] [stderr] 15 | ($x:expr_2021, $y:expr_2021) => { [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: see issue #123742 for more information [INFO] [stderr] = help: add `#![feature(expr_fragment_specifier_2024)]` to the crate attributes to enable [INFO] [stderr] = note: this compiler was built on 2024-09-17; consider upgrading it if it is out of date [INFO] [stderr] [INFO] [stderr] error[E0658]: fragment specifier `expr_2021` is unstable [INFO] [stderr] --> src/macro_study.rs:15:20 [INFO] [stderr] | [INFO] [stderr] 15 | ($x:expr_2021, $y:expr_2021) => { [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: see issue #123742 for more information [INFO] [stderr] = help: add `#![feature(expr_fragment_specifier_2024)]` to the crate attributes to enable [INFO] [stderr] = note: this compiler was built on 2024-09-17; consider upgrading it if it is out of date [INFO] [stderr] [INFO] [stderr] error[E0658]: fragment specifier `expr_2021` is unstable [INFO] [stderr] --> src/macro_study.rs:26:8 [INFO] [stderr] | [INFO] [stderr] 26 | ($($x:expr_2021),*) => { [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: see issue #123742 for more information [INFO] [stderr] = help: add `#![feature(expr_fragment_specifier_2024)]` to the crate attributes to enable [INFO] [stderr] = note: this compiler was built on 2024-09-17; consider upgrading it if it is out of date [INFO] [stderr] [INFO] [stderr] error[E0658]: fragment specifier `expr_2021` is unstable [INFO] [stderr] --> src/macro_study.rs:32:8 [INFO] [stderr] | [INFO] [stderr] 32 | ($($x:expr_2021),*) => { [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: see issue #123742 for more information [INFO] [stderr] = help: add `#![feature(expr_fragment_specifier_2024)]` to the crate attributes to enable [INFO] [stderr] = note: this compiler was built on 2024-09-17; consider upgrading it if it is out of date [INFO] [stderr] [INFO] [stderr] warning: type `tile` should have an upper camel case name [INFO] [stderr] --> src/ahc.rs:19:8 [INFO] [stderr] | [INFO] [stderr] 19 | struct tile { [INFO] [stderr] | ^^^^ help: convert the identifier to upper camel case: `Tile` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(non_camel_case_types)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused macro definition: `foo` [INFO] [stderr] --> src/macro_study.rs:3:14 [INFO] [stderr] | [INFO] [stderr] 3 | macro_rules! foo { [INFO] [stderr] | ^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_macros)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unreachable expression [INFO] [stderr] --> src/tokiotest.rs:37:5 [INFO] [stderr] | [INFO] [stderr] 22 | / loop { [INFO] [stderr] 23 | | let mut socket = l.accept().await?; [INFO] [stderr] 24 | | println!("new request!!"); [INFO] [stderr] 25 | | tokio::spawn(async move { [INFO] [stderr] ... | [INFO] [stderr] 35 | | }); [INFO] [stderr] 36 | | } [INFO] [stderr] | |_____- any code following this expression is unreachable [INFO] [stderr] 37 | Ok(()) [INFO] [stderr] | ^^^^^^ unreachable expression [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unreachable_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unreachable statement [INFO] [stderr] --> src/main.rs:41:5 [INFO] [stderr] | [INFO] [stderr] 40 | panic!("end"); [INFO] [stderr] | ------------- any code following this expression is unreachable [INFO] [stderr] 41 | abc367::main(); [INFO] [stderr] | ^^^^^^^^^^^^^^^ unreachable statement [INFO] [stderr] [INFO] [stderr] warning: unused variable: `y` [INFO] [stderr] --> src/ahc.rs:36:13 [INFO] [stderr] | [INFO] [stderr] 36 | for y in 0..y { [INFO] [stdout] warning: `gen` is a keyword in the 2024 edition [INFO] [stdout] --> src/q1.rs:105:24 [INFO] [stdout] | [INFO] [stdout] 105 | let r_num: i32 = r.gen(); [INFO] [stdout] | ^^^ help: you can use a raw identifier to stay compatible: `r#gen` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2021) but is a hard error in Rust 2024! [INFO] [stdout] = note: for more information, see issue #49716 [INFO] [stdout] = note: `--force-warn keyword-idents-2024` implied by `--force-warn rust-2024-compatibility` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_y` [INFO] [stdout] warning: unused import: `std::io::Stdin` [INFO] [stdout] --> src/ahc.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use std::io::Stdin; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] | [INFO] [stdout] warning: type `tile` should have an upper camel case name [INFO] [stdout] --> src/ahc.rs:20:8 [INFO] [stdout] | [INFO] [stdout] 20 | struct tile { [INFO] [stdout] | ^^^^ help: convert the identifier to upper camel case: `Tile` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_camel_case_types)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] warning: unused macro definition: `foo` [INFO] [stdout] --> src/macro_study.rs:3:14 [INFO] [stdout] | [INFO] [stdout] 3 | macro_rules! foo { [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_macros)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] [INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition [INFO] [stdout] --> src/macro_study.rs:9:9 [INFO] [stdout] | [INFO] [stdout] 9 | ($x:expr) => { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see Migration Guide [INFO] [stdout] = note: `--force-warn edition-2024-expr-fragment-specifier` implied by `--force-warn rust-2024-compatibility` [INFO] [stdout] help: to keep the existing behavior, use the `expr_2021` fragment specifier [INFO] [stdout] | [INFO] [stdout] 9 | ($x:expr_2021) => { [INFO] [stdout] | ~~~~~~~~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] warning: unused variable: `x` [INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition [INFO] [stdout] --> src/macro_study.rs:15:9 [INFO] [stdout] | [INFO] [stdout] 15 | ($x:expr, $y:expr) => { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see Migration Guide [INFO] [stdout] help: to keep the existing behavior, use the `expr_2021` fragment specifier [INFO] [stdout] | [INFO] [stdout] 15 | ($x:expr_2021, $y:expr) => { [INFO] [stdout] | ~~~~~~~~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] --> src/ahc.rs:38:17 [INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition [INFO] [stdout] --> src/macro_study.rs:15:18 [INFO] [stdout] | [INFO] [stdout] 15 | ($x:expr, $y:expr) => { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see Migration Guide [INFO] [stdout] help: to keep the existing behavior, use the `expr_2021` fragment specifier [INFO] [stdout] | [INFO] [stdout] 15 | ($x:expr, $y:expr_2021) => { [INFO] [stdout] | ~~~~~~~~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] | [INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition [INFO] [stdout] --> src/macro_study.rs:26:11 [INFO] [stdout] | [INFO] [stdout] 26 | ($($x:expr),*) => { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see Migration Guide [INFO] [stdout] help: to keep the existing behavior, use the `expr_2021` fragment specifier [INFO] [stdout] | [INFO] [stdout] 26 | ($($x:expr_2021),*) => { [INFO] [stdout] | ~~~~~~~~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] 38 | for x in 0..x { [INFO] [stdout] warning: the `expr` fragment specifier will accept more expressions in the 2024 edition [INFO] [stdout] --> src/macro_study.rs:32:11 [INFO] [stdout] | [INFO] [stdout] 32 | ($($x:expr),*) => { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see Migration Guide [INFO] [stdout] help: to keep the existing behavior, use the `expr_2021` fragment specifier [INFO] [stdout] | [INFO] [stdout] 32 | ($($x:expr_2021),*) => { [INFO] [stdout] | ~~~~~~~~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] warning: unused imports: `Read` and `self` [INFO] [stdout] --> src/q4.rs:14:30 [INFO] [stdout] | [INFO] [stdout] 14 | io::{BufRead, BufReader, Read, Seek, SeekFrom}, [INFO] [stdout] | ^^^^ [INFO] [stdout] 15 | sync::{Arc, Mutex}, [INFO] [stdout] 16 | thread::{self, spawn}, [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] [INFO] [stdout] warning: unused import: `std::fs::File` [INFO] [stdout] --> src/read_json.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::fs::File; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] warning: unreachable pattern [INFO] [stdout] warning: unused imports: `Value` and `value` [INFO] [stdout] --> src/read_json.rs:3:18 [INFO] [stdout] | [INFO] [stdout] 3 | use serde_json::{value, Value}; [INFO] [stdout] | ^^^^^ ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] --> src/q1.rs:42:9 [INFO] [stdout] warning: unused import: `chrono::prelude` [INFO] [stdout] --> src/rust_study_0510.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use chrono::prelude; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] | [INFO] [stdout] warning: unused imports: `default`, `fs::File`, and `io::Read` [INFO] [stdout] --> src/rust_study_0510.rs:2:11 [INFO] [stdout] | [INFO] [stdout] 2 | use std::{default, fs::File, io::Read}; [INFO] [stdout] | ^^^^^^^ ^^^^^^^^ ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] 41 | _ => println!("hoge"), [INFO] [stdout] warning: unused import: `diesel::pg::PgConnection` [INFO] [stdout] --> src/main.rs:25:5 [INFO] [stdout] | [INFO] [stdout] 25 | use diesel::pg::PgConnection; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] | - matches any value [INFO] [stdout] warning: unused imports: `fs::File` and `io::Read` [INFO] [stdout] --> src/rust_study20240812_anyhow.rs:1:11 [INFO] [stdout] | [INFO] [stdout] 1 | use std::{fs::File, io::Read}; [INFO] [stdout] | ^^^^^^^^ ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] 42 | None => print!("non"), [INFO] [stdout] warning: unused imports: `Ok` and `Result` [INFO] [stdout] --> src/rust_study20240812_anyhow.rs:3:14 [INFO] [stdout] | [INFO] [stdout] 3 | use anyhow::{Ok, Result}; [INFO] [stdout] | ^^ ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] | ^^^^ no value can reach this [INFO] [stdout] warning: unused import: `diesel::result` [INFO] [stdout] --> src/rust_study20240812_anyhow.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use diesel::result; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] | [INFO] [stdout] warning: unreachable expression [INFO] [stdout] --> src/tokiotest.rs:37:5 [INFO] [stdout] | [INFO] [stdout] 22 | / loop { [INFO] [stdout] 23 | | let mut socket = l.accept().await?; [INFO] [stdout] 24 | | println!("new request!!"); [INFO] [stdout] 25 | | tokio::spawn(async move { [INFO] [stdout] ... | [INFO] [stdout] 35 | | }); [INFO] [stdout] 36 | | } [INFO] [stdout] | |_____- any code following this expression is unreachable [INFO] [stdout] 37 | Ok(()) [INFO] [stdout] | ^^^^^^ unreachable expression [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] = note: `#[warn(unreachable_patterns)]` on by default [INFO] [stdout] warning: unreachable statement [INFO] [stdout] --> src/main.rs:42:5 [INFO] [stdout] | [INFO] [stdout] 41 | panic!("end"); [INFO] [stdout] | ------------- any code following this expression is unreachable [INFO] [stdout] 42 | abc367::main(); [INFO] [stdout] | ^^^^^^^^^^^^^^^ unreachable statement [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] [INFO] [stdout] warning: unused variable: `y` [INFO] [stdout] --> src/ahc.rs:37:13 [INFO] [stdout] | [INFO] [stdout] 37 | for y in 0..y { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_y` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] warning: unused variable: `f` [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/ahc.rs:39:17 [INFO] [stdout] | [INFO] [stdout] 39 | for x in 0..x { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] --> src/q1.rs:47:9 [INFO] [stdout] warning: unreachable pattern [INFO] [stdout] --> src/q1.rs:42:9 [INFO] [stdout] | [INFO] [stdout] 41 | _ => println!("hoge"), [INFO] [stdout] | - matches any value [INFO] [stdout] 42 | None => print!("non"), [INFO] [stdout] | ^^^^ no value can reach this [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_patterns)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] | [INFO] [stdout] warning: unused variable: `f` [INFO] [stdout] --> src/q1.rs:47:9 [INFO] [stdout] | [INFO] [stdout] 47 | let f = Some(4); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_f` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] 47 | let f = Some(4); [INFO] [stdout] warning: unused variable: `ans` [INFO] [stdout] --> src/q1.rs:85:9 [INFO] [stdout] | [INFO] [stdout] 85 | let ans = q1_3_option(); [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_ans` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_f` [INFO] [stdout] warning: unused variable: `a` [INFO] [stdout] --> src/q1.rs:90:9 [INFO] [stdout] | [INFO] [stdout] 90 | let a = q1_4_esult(32); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_a` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] [INFO] [stdout] warning: unused variable: `a` [INFO] [stdout] --> src/q1.rs:160:28 [INFO] [stdout] | [INFO] [stdout] 160 | fn t<'a, 'b: 'a, T: Debug>(a: &'a str, b: &'b T) { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_a` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] warning: unused variable: `ans` [INFO] [stdout] warning: unused variable: `b` [INFO] [stdout] --> src/q1.rs:160:40 [INFO] [stdout] | [INFO] [stdout] 160 | fn t<'a, 'b: 'a, T: Debug>(a: &'a str, b: &'b T) { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_b` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] --> src/q1.rs:85:9 [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/q1.rs:164:22 [INFO] [stdout] | [INFO] [stdout] 164 | fn f<'a, T: Display>(x: &'a str, y: &'a T) {} [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] | [INFO] [stdout] warning: unused variable: `y` [INFO] [stdout] --> src/q1.rs:164:34 [INFO] [stdout] | [INFO] [stdout] 164 | fn f<'a, T: Display>(x: &'a str, y: &'a T) {} [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_y` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] 85 | let ans = q1_3_option(); [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/q4.rs:23:9 [INFO] [stdout] | [INFO] [stdout] 23 | let mut arcTest = Arc::new(42); [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] [stderr] | ^^^ help: if this is intentional, prefix it with an underscore: `_ans` [INFO] [stdout] warning: unused variable: `str` [INFO] [stdout] --> src/q4.rs:70:13 [INFO] [stdout] | [INFO] [stdout] 70 | let mut str = String::new(); [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_str` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] [INFO] [stdout] warning: unused variable: `h` [INFO] [stdout] --> src/q4.rs:72:13 [INFO] [stdout] | [INFO] [stdout] 72 | let mut h: HashMap = HashMap::new(); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_h` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] warning: unused variable: `a` [INFO] [stdout] warning: unused variable: `l` [INFO] [stdout] --> src/q4.rs:87:17 [INFO] [stdout] | [INFO] [stdout] 87 | let l = reader.read_line(&mut b).unwrap(); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_l` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] --> src/q1.rs:90:9 [INFO] [stdout] warning: unused variable: `v` [INFO] [stdout] --> src/q4.rs:92:21 [INFO] [stdout] | [INFO] [stdout] 92 | let v = locked_count_map.get(word).unwrap(); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_v` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] | [INFO] [stdout] warning: unused variable: `e` [INFO] [stdout] --> src/q4.rs:93:21 [INFO] [stdout] | [INFO] [stdout] 93 | let e = locked_count_map.entry("a".to_string()).or_insert(3); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_e` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] 90 | let a = q1_4_esult(32); [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/q4.rs:70:9 [INFO] [stdout] | [INFO] [stdout] 70 | let mut str = String::new(); [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_a` [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/q4.rs:71:9 [INFO] [stdout] | [INFO] [stdout] 71 | let mut countMap: Arc>> = Arc::new(Mutex::new(HashMap::new())); [INFO] [stdout] | ----^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/q4.rs:72:9 [INFO] [stdout] | [INFO] [stdout] 72 | let mut h: HashMap = HashMap::new(); [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] warning: unused variable: `a` [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/q4.rs:74:9 [INFO] [stdout] | [INFO] [stdout] 74 | let mut f = File::open("memo.md").unwrap(); // file::openはファイルハンドラだから100TB読むわけではない [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] --> src/q1.rs:160:28 [INFO] [stdout] warning: unused variable: `list` [INFO] [stdout] --> src/q5.rs:3:9 [INFO] [stdout] | [INFO] [stdout] 3 | let list = [6, 7, 8, 9, 8, 7, 6, 4, 7, 4]; [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_list` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] | [INFO] [stdout] warning: unused variable: `v_list` [INFO] [stdout] --> src/q5.rs:4:9 [INFO] [stdout] | [INFO] [stdout] 4 | let v_list: Vec = vec![6, 7, 8, 9, 8, 7, 6, 4, 7, 4]; [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_v_list` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] 160 | fn t<'a, 'b: 'a, T: Debug>(a: &'a str, b: &'b T) { [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/abc076.rs:9:9 [INFO] [stdout] | [INFO] [stdout] 9 | for i in 0..n { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_a` [INFO] [stdout] warning: unused variable: `index` [INFO] [stdout] --> src/abc353.rs:44:19 [INFO] [stdout] | [INFO] [stdout] 44 | Some((index, &value)) => { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_index` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] [INFO] [stdout] warning: unused variable: `min` [INFO] [stdout] --> src/atcode_beginers_selection.rs:30:9 [INFO] [stdout] | [INFO] [stdout] 30 | let min = a.iter().min().unwrap().clone(); [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_min` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] warning: unused variable: `b` [INFO] [stdout] warning: unused variable: `k` [INFO] [stdout] --> src/atcode_beginers_selection.rs:53:16 [INFO] [stdout] | [INFO] [stdout] 53 | (n, m, k):(i32,i32,i32), [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_k` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] --> src/q1.rs:160:40 [INFO] [stdout] warning: unused variable: `a` [INFO] [stdout] --> src/atcode_beginers_selection.rs:54:9 [INFO] [stdout] | [INFO] [stdout] 54 | a: [[i32;n];n], [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_a` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] | [INFO] [stdout] warning: unused variable: `s` [INFO] [stdout] --> src/atcode_beginers_selection.rs:55:9 [INFO] [stdout] | [INFO] [stdout] 55 | s:[[i32;3];m*3] [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] 160 | fn t<'a, 'b: 'a, T: Debug>(a: &'a str, b: &'b T) { [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/rust_study_0510.rs:40:9 [INFO] [stdout] | [INFO] [stdout] 40 | let mut even: Vec<&str> = Vec::new(); [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_b` [INFO] [stdout] warning: unused variable: `y` [INFO] [stdout] --> src/rust_study_0510.rs:78:9 [INFO] [stdout] | [INFO] [stdout] 78 | let y = x; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_y` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] [INFO] [stdout] warning: unused variable: `t` [INFO] [stdout] --> src/tokiotest.rs:13:13 [INFO] [stdout] | [INFO] [stdout] 13 | let mut t = TcpStream::connect("example.com:80").await?; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_t` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] warning: unused variable: `x` [INFO] [stdout] warning: unused variable: `request` [INFO] [stdout] --> src/tokiotest.rs:15:9 [INFO] [stdout] | [INFO] [stdout] 15 | let request = b"GET HTTP1.1 example.com"; [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_request` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] --> src/q1.rs:164:22 [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/tokiotest.rs:13:9 [INFO] [stdout] | [INFO] [stdout] 13 | let mut t = TcpStream::connect("example.com:80").await?; [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] | [INFO] [stdout] warning: unused variable: `k` [INFO] [stdout] --> src/abc367.rs:46:13 [INFO] [stdout] | [INFO] [stdout] 46 | (n, k): (i32, i32), [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_k` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] 164 | fn f<'a, T: Display>(x: &'a str, y: &'a T) {} [INFO] [stdout] warning: unused variable: `n` [INFO] [stdout] --> src/generic_where_plactice.rs:2:9 [INFO] [stdout] | [INFO] [stdout] 2 | let n = N { s: 4 }; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_n` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] warning: unused variable: `a` [INFO] [stdout] --> src/rust_study20240812.rs:120:9 [INFO] [stdout] | [INFO] [stdout] 120 | let a = s.size(); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_a` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] [INFO] [stdout] warning: struct `tile` is never constructed [INFO] [stdout] --> src/ahc.rs:20:8 [INFO] [stdout] | [INFO] [stdout] 20 | struct tile { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] warning: unused variable: `y` [INFO] [stdout] warning: struct `Grid` is never constructed [INFO] [stdout] --> src/ahc.rs:27:8 [INFO] [stdout] | [INFO] [stdout] 27 | struct Grid { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] --> src/q1.rs:164:34 [INFO] [stdout] warning: associated items `new`, `up`, `down`, `left`, `right`, and `display` are never used [INFO] [stdout] --> src/ahc.rs:33:8 [INFO] [stdout] | [INFO] [stdout] 32 | impl Grid { [INFO] [stdout] | --------- associated items in this implementation [INFO] [stdout] 33 | fn new(x: i32, y: i32) -> Grid { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 46 | fn up(&mut self) { [INFO] [stdout] | ^^ [INFO] [stdout] ... [INFO] [stdout] 49 | fn down(&mut self) { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 52 | fn left(&mut self) { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 55 | fn right(&mut self) { [INFO] [stdout] | ^^^^^ [INFO] [stdout] ... [INFO] [stdout] 58 | fn display(&mut self) { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] | [INFO] [stdout] warning: function `main` is never used [INFO] [stdout] --> src/ahc.rs:65:8 [INFO] [stdout] | [INFO] [stdout] 65 | pub fn main() { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] 164 | fn f<'a, T: Display>(x: &'a str, y: &'a T) {} [INFO] [stdout] warning: function `read_input` is never used [INFO] [stdout] --> src/ahc.rs:76:8 [INFO] [stdout] | [INFO] [stdout] 76 | pub fn read_input() { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_y` [INFO] [stdout] warning: function `hello` is never used [INFO] [stdout] --> src/hypertest.rs:12:10 [INFO] [stdout] | [INFO] [stdout] 12 | async fn hello(_: Request) -> Result>, Infallible> { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] [INFO] [stdout] warning: function `main` is never used [INFO] [stdout] --> src/hypertest.rs:17:14 [INFO] [stdout] | [INFO] [stdout] 17 | pub async fn main() -> Result<(), Box> { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] warning: unused variable: `str` [INFO] [stdout] warning: fields `name` and `age` are never read [INFO] [stdout] --> src/macro_study.rs:21:5 [INFO] [stdout] | [INFO] [stdout] 20 | pub struct Person { [INFO] [stdout] | ------ fields in this struct [INFO] [stdout] 21 | name: String, [INFO] [stdout] | ^^^^ [INFO] [stdout] 22 | age: i32, [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] --> src/q4.rs:70:9 [INFO] [stdout] warning: function `q1_1` is never used [INFO] [stdout] --> src/q1.rs:10:8 [INFO] [stdout] | [INFO] [stdout] 10 | pub fn q1_1() { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] | [INFO] [stdout] warning: function `q1_3_option` is never used [INFO] [stdout] --> src/q1.rs:30:4 [INFO] [stdout] | [INFO] [stdout] 30 | fn q1_3_option() -> Option { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] 70 | let str = String::new(); [INFO] [stdout] warning: function `q1_3_match` is never used [INFO] [stdout] --> src/q1.rs:38:4 [INFO] [stdout] | [INFO] [stdout] 38 | fn q1_3_match() { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] | ^^^ help: if this is intentional, prefix it with an underscore: `_str` [INFO] [stdout] warning: function `q1_3_expect` is never used [INFO] [stdout] --> src/q1.rs:46:4 [INFO] [stdout] | [INFO] [stdout] 46 | fn q1_3_expect() { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] [INFO] [stdout] warning: function `q1_4_esult` is never used [INFO] [stdout] --> src/q1.rs:54:4 [INFO] [stdout] | [INFO] [stdout] 54 | fn q1_4_esult(i: i32) -> Result { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] warning: unused variable: `h` [INFO] [stdout] warning: function `q1_4_fileopen` is never used [INFO] [stdout] --> src/q1.rs:65:4 [INFO] [stdout] | [INFO] [stdout] 65 | fn q1_4_fileopen(path: &Path) -> Result { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] --> src/q4.rs:72:9 [INFO] [stdout] warning: function `q1_4_match` is never used [INFO] [stdout] --> src/q1.rs:73:4 [INFO] [stdout] | [INFO] [stdout] 73 | fn q1_4_match() { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] | [INFO] [stdout] warning: function `main` is never used [INFO] [stdout] --> src/q1.rs:81:8 [INFO] [stdout] | [INFO] [stdout] 81 | pub fn main() { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] 72 | let h: HashMap = HashMap::new(); [INFO] [stdout] warning: function `err_handling` is never used [INFO] [stdout] --> src/q1.rs:103:8 [INFO] [stdout] | [INFO] [stdout] 103 | pub fn err_handling() -> Result { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_h` [INFO] [stdout] warning: function `longest` is never used [INFO] [stdout] --> src/q1.rs:114:4 [INFO] [stdout] | [INFO] [stdout] 114 | fn longest<'a>(x: &'a str, y: &'a str) -> &'a str { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] [INFO] [stdout] warning: struct `Product` is never constructed [INFO] [stdout] --> src/q1.rs:129:8 [INFO] [stdout] | [INFO] [stdout] 129 | struct Product { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] warning: unused variable: `l` [INFO] [stdout] warning: trait `PriceFilter` is never used [INFO] [stdout] --> src/q1.rs:134:7 [INFO] [stdout] | [INFO] [stdout] 134 | trait PriceFilter { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] --> src/q4.rs:87:17 [INFO] [stdout] warning: function `filter_products` is never used [INFO] [stdout] --> src/q1.rs:148:4 [INFO] [stdout] | [INFO] [stdout] 148 | fn filter_products(u: Vec, t: T) -> Vec { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] | [INFO] [stdout] warning: function `t` is never used [INFO] [stdout] --> src/q1.rs:160:4 [INFO] [stdout] | [INFO] [stdout] 160 | fn t<'a, 'b: 'a, T: Debug>(a: &'a str, b: &'b T) { [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] 87 | let l = reader.read_line(&mut b).unwrap(); [INFO] [stdout] warning: function `f` is never used [INFO] [stdout] --> src/q1.rs:164:4 [INFO] [stdout] | [INFO] [stdout] 164 | fn f<'a, T: Display>(x: &'a str, y: &'a T) {} [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_l` [INFO] [stdout] warning: function `main` is never used [INFO] [stdout] --> src/q3.rs:3:8 [INFO] [stdout] | [INFO] [stdout] 3 | pub fn main() { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] [INFO] [stdout] warning: function `main` is never used [INFO] [stdout] --> src/q4.rs:19:8 [INFO] [stdout] | [INFO] [stdout] 19 | pub fn main() { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] warning: unused variable: `v` [INFO] [stdout] warning: function `q4_pre` is never used [INFO] [stdout] --> src/q4.rs:36:4 [INFO] [stdout] | [INFO] [stdout] 36 | fn q4_pre() { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] --> src/q4.rs:92:21 [INFO] [stdout] warning: function `q5_more_thread` is never used [INFO] [stdout] --> src/q4.rs:69:4 [INFO] [stdout] | [INFO] [stdout] 69 | fn q5_more_thread() { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] | [INFO] [stdout] warning: function `main` is never used [INFO] [stdout] --> src/q5.rs:2:4 [INFO] [stdout] | [INFO] [stdout] 2 | fn main() { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] 92 | let v = locked_count_map.get(word).unwrap(); [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_v` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `e` [INFO] [stderr] --> src/q4.rs:93:21 [INFO] [stderr] | [INFO] [stderr] 93 | let e = locked_count_map.entry("a".to_string()).or_insert(3); [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_e` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `list` [INFO] [stderr] --> src/q5.rs:3:9 [INFO] [stderr] | [INFO] [stderr] 3 | let list = [6, 7, 8, 9, 8, 7, 6, 4, 7, 4]; [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_list` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `v_list` [INFO] [stderr] --> src/q5.rs:4:9 [INFO] [stderr] | [INFO] [stderr] 4 | let v_list: Vec = vec![6, 7, 8, 9, 8, 7, 6, 4, 7, 4]; [INFO] [stderr] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_v_list` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `i` [INFO] [stderr] --> src/abc076.rs:9:9 [INFO] [stderr] | [INFO] [stderr] 9 | for i in 0..n { [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `index` [INFO] [stderr] --> src/abc353.rs:44:19 [INFO] [stderr] | [INFO] [stderr] 44 | Some((index, &value)) => { [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_index` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `min` [INFO] [stderr] --> src/atcode_beginers_selection.rs:30:9 [INFO] [stderr] | [INFO] [stderr] 30 | let min = a.iter().min().unwrap().clone(); [INFO] [stdout] warning: function `a` is never used [INFO] [stdout] --> src/abc351_a.rs:7:8 [INFO] [stdout] | [INFO] [stdout] 7 | pub fn a() { [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] | ^^^ help: if this is intentional, prefix it with an underscore: `_min` [INFO] [stdout] warning: function `c` is never used [INFO] [stdout] --> src/abc351_a.rs:39:8 [INFO] [stdout] | [INFO] [stdout] 39 | pub fn c() {} [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] [INFO] [stdout] warning: function `b` is never used [INFO] [stdout] --> src/abc352_a.rs:24:4 [INFO] [stdout] | [INFO] [stdout] 24 | fn b() { [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] warning: unused variable: `k` [INFO] [stdout] warning: function `a` is never used [INFO] [stdout] --> src/abc353.rs:10:8 [INFO] [stdout] | [INFO] [stdout] 10 | pub fn a() { [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] --> src/atcode_beginers_selection.rs:53:16 [INFO] [stdout] warning: function `b` is never used [INFO] [stdout] --> src/abc353.rs:33:8 [INFO] [stdout] | [INFO] [stdout] 33 | pub fn b() { [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] | [INFO] [stderr] 53 | (n, m, k):(i32,i32,i32), [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_k` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `a` [INFO] [stderr] --> src/atcode_beginers_selection.rs:54:9 [INFO] [stderr] | [INFO] [stderr] 54 | a: [[i32;n];n], [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_a` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `s` [INFO] [stdout] warning: function `a` is never used [INFO] [stdout] --> src/atcode_beginers_selection.rs:8:8 [INFO] [stdout] | [INFO] [stdout] 8 | pub fn a() { [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] --> src/atcode_beginers_selection.rs:55:9 [INFO] [stdout] warning: function `abc081b` is never used [INFO] [stdout] --> src/atcode_beginers_selection.rs:25:8 [INFO] [stdout] | [INFO] [stdout] 25 | pub fn abc081b() { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] | [INFO] [stdout] warning: function `ahc032_a` is never used [INFO] [stdout] --> src/atcode_beginers_selection.rs:51:8 [INFO] [stdout] | [INFO] [stdout] 51 | pub fn ahc032_a() { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] 55 | s:[[i32;3];m*3] [INFO] [stdout] warning: fields `schema` and `extends` are never read [INFO] [stdout] --> src/read_json.rs:15:5 [INFO] [stdout] | [INFO] [stdout] 13 | struct Renovate { [INFO] [stdout] | -------- fields in this struct [INFO] [stdout] 14 | #[serde(rename = "$schema")] [INFO] [stdout] 15 | schema: String, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 16 | extends: Vec, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Renovate` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `y` [INFO] [stderr] --> src/rust_study_0510.rs:76:9 [INFO] [stderr] | [INFO] [stderr] 76 | let y = x; [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_y` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `t` [INFO] [stderr] --> src/tokiotest.rs:13:9 [INFO] [stderr] | [INFO] [stderr] 13 | let t = TcpStream::connect("example.com:80").await?; [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_t` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `request` [INFO] [stderr] --> src/tokiotest.rs:15:9 [INFO] [stderr] | [INFO] [stderr] 15 | let request = b"GET HTTP1.1 example.com"; [INFO] [stderr] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_request` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `k` [INFO] [stderr] --> src/abc367.rs:46:13 [INFO] [stderr] | [INFO] [stderr] 46 | (n, k): (i32, i32), [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_k` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `n` [INFO] [stderr] --> src/generic_where_plactice.rs:2:9 [INFO] [stderr] | [INFO] [stderr] 2 | let n = N { s: 4 }; [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_n` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `a` [INFO] [stderr] --> src/rust_study20240812.rs:120:9 [INFO] [stderr] | [INFO] [stderr] 120 | let a = s.size(); [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_a` [INFO] [stderr] [INFO] [stderr] error: aborting due to 5 previous errors; 33 warnings emitted [INFO] [stderr] [INFO] [stderr] For more information about this error, try `rustc --explain E0658`. [INFO] [stderr] Original diagnostics will follow. [INFO] [stderr] [INFO] [stdout] warning: function `main` is never used [INFO] [stdout] --> src/read_json.rs:19:8 [INFO] [stdout] | [INFO] [stdout] 19 | pub fn main() { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `mainold` is never used [INFO] [stdout] --> src/rust_study_0510.rs:4:8 [INFO] [stdout] | [INFO] [stdout] 4 | pub fn mainold() { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `main` is never used [INFO] [stdout] --> src/rust_study_0510.rs:25:4 [INFO] [stdout] | [INFO] [stdout] 25 | fn main() { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `process_strings` is never used [INFO] [stdout] --> src/rust_study_0510.rs:38:4 [INFO] [stdout] | [INFO] [stdout] 38 | fn process_strings(v: &Vec) -> StringStats { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `StringStats` is never constructed [INFO] [stdout] --> src/rust_study_0510.rs:50:8 [INFO] [stdout] | [INFO] [stdout] 50 | struct StringStats<'a> { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `errsample1` is never used [INFO] [stdout] --> src/rust_study_0510.rs:63:8 [INFO] [stdout] | [INFO] [stdout] 63 | pub fn errsample1() { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `processvec` is never used [INFO] [stdout] --> src/rust_study_0510.rs:71:4 [INFO] [stdout] | [INFO] [stdout] 71 | fn processvec(x: &Box) { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `oksample1` is never used [INFO] [stdout] --> src/rust_study_0510.rs:75:8 [INFO] [stdout] | [INFO] [stdout] 75 | pub fn oksample1() { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `server` is never used [INFO] [stdout] --> src/tokiotest.rs:19:14 [INFO] [stdout] | [INFO] [stdout] 19 | pub async fn server() -> Result<(), Box> { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `a` is never used [INFO] [stdout] --> src/abc129.rs:12:4 [INFO] [stdout] | [INFO] [stdout] 12 | fn a() { [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `a` is never used [INFO] [stdout] --> src/abc362.rs:10:8 [INFO] [stdout] | [INFO] [stdout] 10 | pub fn a() { [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `b` is never used [INFO] [stdout] --> src/abc362.rs:24:8 [INFO] [stdout] | [INFO] [stdout] 24 | pub fn b() {} [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `c` is never used [INFO] [stdout] --> src/abc367.rs:42:8 [INFO] [stdout] | [INFO] [stdout] 42 | pub fn c() { [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `solve_lake_rest_area_problem` is never used [INFO] [stdout] --> src/abc367.rs:55:4 [INFO] [stdout] | [INFO] [stdout] 55 | fn solve_lake_rest_area_problem(n: usize, m: i64, a: &[i64]) -> i64 { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `solve_lake_rest_area_problem2` is never used [INFO] [stdout] --> src/abc367.rs:83:4 [INFO] [stdout] | [INFO] [stdout] 83 | fn solve_lake_rest_area_problem2(n: usize, m: i64, a: &[i64]) -> i64 { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `solve_lake_rest_area_problem3` is never used [INFO] [stdout] --> src/abc367.rs:105:4 [INFO] [stdout] | [INFO] [stdout] 105 | fn solve_lake_rest_area_problem3(n: usize, m: i64, a: &[i64]) -> i64 { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `name`, `version`, `edition`, `license`, and `description` are never read [INFO] [stdout] --> src/cargo_toml_parse.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 8 | struct Package { [INFO] [stdout] | ------- fields in this struct [INFO] [stdout] 9 | name: String, [INFO] [stdout] | ^^^^ [INFO] [stdout] 10 | version: String, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] 11 | edition: String, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] 12 | license: String, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] 13 | description: String, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Package` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/cargo_toml_parse.rs:25:12 [INFO] [stdout] | [INFO] [stdout] 25 | Simple(String), [INFO] [stdout] | ------ ^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `Dependency` 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] 25 | Simple(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `version` and `features` are never read [INFO] [stdout] --> src/cargo_toml_parse.rs:27:9 [INFO] [stdout] | [INFO] [stdout] 26 | Detailed { [INFO] [stdout] | -------- fields in this variant [INFO] [stdout] 27 | version: String, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] 28 | features: Option>, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Dependency` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `package` and `dependencies` are never read [INFO] [stdout] --> src/cargo_toml_parse.rs:34:5 [INFO] [stdout] | [INFO] [stdout] 33 | struct Cargo { [INFO] [stdout] | ----- fields in this struct [INFO] [stdout] 34 | package: Package, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] 35 | dependencies: HashMap, [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `main` is never used [INFO] [stdout] --> src/cargo_toml_parse.rs:38:8 [INFO] [stdout] | [INFO] [stdout] 38 | pub fn main() { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `SS` is never used [INFO] [stdout] --> src/generic_where_plactice.rs:6:7 [INFO] [stdout] | [INFO] [stdout] 6 | trait SS { [INFO] [stdout] | ^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `s` is never read [INFO] [stdout] --> src/generic_where_plactice.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 9 | struct N { [INFO] [stdout] | - field in this struct [INFO] [stdout] 10 | s: T, [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `genericsample` is never used [INFO] [stdout] --> src/generic_where_plactice.rs:20:4 [INFO] [stdout] | [INFO] [stdout] 20 | fn genericsample(argx: X) -> i32 [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `koukai` is never used [INFO] [stdout] --> src/generic_where_plactice.rs:27:4 [INFO] [stdout] | [INFO] [stdout] 27 | fn koukai() { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `koukai3` is never used [INFO] [stdout] --> src/generic_where_plactice.rs:39:4 [INFO] [stdout] | [INFO] [stdout] 39 | fn koukai3() { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `q1` is never used [INFO] [stdout] --> src/rust_study20240812.rs:43:8 [INFO] [stdout] | [INFO] [stdout] 43 | pub fn q1() { [INFO] [stdout] | ^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `Perimeter` is never used [INFO] [stdout] --> src/rust_study20240812.rs:90:7 [INFO] [stdout] | [INFO] [stdout] 90 | trait Perimeter { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Rectangle` is never constructed [INFO] [stdout] --> src/rust_study20240812.rs:93:8 [INFO] [stdout] | [INFO] [stdout] 93 | struct Rectangle { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `size` is never used [INFO] [stdout] --> src/rust_study20240812.rs:110:8 [INFO] [stdout] | [INFO] [stdout] 108 | impl Rectangle { [INFO] [stdout] | -------------- method in this implementation [INFO] [stdout] 109 | //↑をやりたい場合はこうやって分割する。そうすると下のmainの中で認識できる。 [INFO] [stdout] 110 | fn size(&self) -> i32 { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `main` is never used [INFO] [stdout] --> src/rust_study20240812.rs:115:8 [INFO] [stdout] | [INFO] [stdout] 115 | pub fn main() { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `q2` is never used [INFO] [stdout] --> src/rust_study20240812.rs:148:8 [INFO] [stdout] | [INFO] [stdout] 148 | pub fn q2() { [INFO] [stdout] | ^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `main` is never used [INFO] [stdout] --> src/rust_study20240812_anyhow.rs:31:8 [INFO] [stdout] | [INFO] [stdout] 31 | pub fn main() { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: `if let` assigns a shorter lifetime since Edition 2024 [INFO] [stdout] --> src/hypertest.rs:34:16 [INFO] [stdout] | [INFO] [stdout] 34 | if let Err(err) = http1::Builder::new() [INFO] [stdout] | ________________^ - [INFO] [stdout] | |_______________________________| [INFO] [stdout] 35 | || // `service_fn` converts our function in a `Service` [INFO] [stdout] 36 | || .serve_connection(io, service_fn(hello)) [INFO] [stdout] 37 | || .await [INFO] [stdout] | ||______________________^ this value has a significant drop implementation which may observe a major change in drop order and requires your discretion [INFO] [stdout] | |______________________| [INFO] [stdout] | [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see issue #124085 [INFO] [stdout] help: the value is now dropped here in Edition 2024 [INFO] [stdout] --> src/hypertest.rs:40:13 [INFO] [stdout] | [INFO] [stdout] 40 | } [INFO] [stdout] | ^ [INFO] [stdout] = note: `--force-warn if-let-rescope` implied by `--force-warn rust-2024-compatibility` [INFO] [stdout] help: a `match` with a single arm can preserve the drop order up to Edition 2021 [INFO] [stdout] | [INFO] [stdout] 34 ~ match http1::Builder::new() [INFO] [stdout] 35 | // `service_fn` converts our function in a `Service` [INFO] [stdout] 36 | .serve_connection(io, service_fn(hello)) [INFO] [stdout] 37 | .await [INFO] [stdout] 38 ~ { Err(err) => { [INFO] [stdout] 39 | eprintln!("Error serving connection: {:?}", err); [INFO] [stdout] 40 ~ } _ => {}} [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `arcTest` should have a snake case name [INFO] [stdout] --> src/q4.rs:23:13 [INFO] [stdout] | [INFO] [stdout] 23 | let mut arcTest = Arc::new(42); [INFO] [stdout] | ^^^^^^^ help: convert the identifier to snake case: `arc_test` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `arcMutexTest` should have a snake case name [INFO] [stdout] --> src/q4.rs:24:9 [INFO] [stdout] | [INFO] [stdout] 24 | let arcMutexTest = Arc::new(Mutex::new(43)); [INFO] [stdout] | ^^^^^^^^^^^^ help: convert the identifier to snake case: `arc_mutex_test` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `arcMutexTestInner` should have a snake case name [INFO] [stdout] --> src/q4.rs:25:13 [INFO] [stdout] | [INFO] [stdout] 25 | let mut arcMutexTestInner = arcMutexTest.lock().unwrap(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `arc_mutex_test_inner` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `countMap` should have a snake case name [INFO] [stdout] --> src/q4.rs:71:13 [INFO] [stdout] | [INFO] [stdout] 71 | let mut countMap: Arc>> = Arc::new(Mutex::new(HashMap::new())); [INFO] [stdout] | ^^^^^^^^ help: convert the identifier to snake case: `count_map` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `countMap` should have a snake case name [INFO] [stdout] --> src/q4.rs:78:13 [INFO] [stdout] | [INFO] [stdout] 78 | let countMap = Arc::clone(&countMap); [INFO] [stdout] | ^^^^^^^^ help: convert the identifier to snake case: `count_map` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/generic_where_plactice.rs:52:5 [INFO] [stdout] | [INFO] [stdout] 52 | koukai2(l); [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] 52 | let _ = koukai2(l); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 133 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 18.31s [INFO] [stderr] Running `cargo check` to verify 2024 [INFO] [stderr] warning: rust-playground v0.1.0 (/tmp/fixit) ignoring invalid dependency `cargo-insta` which is missing a lib target [INFO] [stderr] Checking rust-playground v0.1.0 (/tmp/fixit) [INFO] [stdout] error: expected identifier, found reserved keyword `gen` [INFO] [stdout] --> src/q1.rs:105:24 [INFO] [stdout] | [INFO] [stdout] 105 | let r_num: i32 = r.gen(); [INFO] [stdout] | ^^^ expected identifier, found reserved keyword [INFO] [stdout] | [INFO] [stdout] help: escape `gen` to use it as an identifier [INFO] [stdout] | [INFO] [stdout] 105 | let r_num: i32 = r.r#gen(); [INFO] [stdout] | ++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: expected identifier, found reserved keyword `gen` [INFO] [stdout] --> src/q1.rs:105:24 [INFO] [stdout] | [INFO] [stdout] 105 | let r_num: i32 = r.gen(); [INFO] [stdout] | ^^^ expected identifier, found reserved keyword [INFO] [stdout] | [INFO] [stdout] help: escape `gen` to use it as an identifier [INFO] [stdout] | [INFO] [stdout] 105 | let r_num: i32 = r.r#gen(); [INFO] [stdout] | ++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::io::Stdin` [INFO] [stdout] --> src/ahc.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use std::io::Stdin; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type `tile` should have an upper camel case name [INFO] [stdout] --> src/ahc.rs:20:8 [INFO] [stdout] | [INFO] [stdout] 20 | struct tile { [INFO] [stdout] | ^^^^ help: convert the identifier to upper camel case: `Tile` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_camel_case_types)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused macro definition: `foo` [INFO] [stdout] --> src/macro_study.rs:3:14 [INFO] [stdout] | [INFO] [stdout] 3 | macro_rules! foo { [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_macros)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Read` and `self` [INFO] [stdout] --> src/q4.rs:14:30 [INFO] [stdout] | [INFO] [stdout] 14 | io::{BufRead, BufReader, Read, Seek, SeekFrom}, [INFO] [stdout] | ^^^^ [INFO] [stdout] 15 | sync::{Arc, Mutex}, [INFO] [stdout] 16 | thread::{self, spawn}, [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::fs::File` [INFO] [stdout] --> src/read_json.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::fs::File; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Value` and `value` [INFO] [stdout] --> src/read_json.rs:3:18 [INFO] [stdout] | [INFO] [stdout] 3 | use serde_json::{value, Value}; [INFO] [stdout] | ^^^^^ ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `chrono::prelude` [INFO] [stdout] --> src/rust_study_0510.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use chrono::prelude; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `default`, `fs::File`, and `io::Read` [INFO] [stdout] --> src/rust_study_0510.rs:2:11 [INFO] [stdout] | [INFO] [stdout] 2 | use std::{default, fs::File, io::Read}; [INFO] [stdout] | ^^^^^^^ ^^^^^^^^ ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `diesel::pg::PgConnection` [INFO] [stdout] --> src/main.rs:25:5 [INFO] [stdout] | [INFO] [stdout] 25 | use diesel::pg::PgConnection; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::io::Stdin` [INFO] [stdout] --> src/ahc.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use std::io::Stdin; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type `tile` should have an upper camel case name [INFO] [stdout] --> src/ahc.rs:20:8 [INFO] [stdout] | [INFO] [stdout] 20 | struct tile { [INFO] [stdout] | ^^^^ help: convert the identifier to upper camel case: `Tile` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_camel_case_types)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `fs::File` and `io::Read` [INFO] [stdout] --> src/rust_study20240812_anyhow.rs:1:11 [INFO] [stdout] | [INFO] [stdout] 1 | use std::{fs::File, io::Read}; [INFO] [stdout] | ^^^^^^^^ ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused macro definition: `foo` [INFO] [stdout] --> src/macro_study.rs:3:14 [INFO] [stdout] | [INFO] [stdout] 3 | macro_rules! foo { [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_macros)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Ok` and `Result` [INFO] [stdout] --> src/rust_study20240812_anyhow.rs:3:14 [INFO] [stdout] | [INFO] [stdout] 3 | use anyhow::{Ok, Result}; [INFO] [stdout] | ^^ ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Read` and `self` [INFO] [stdout] --> src/q4.rs:14:30 [INFO] [stdout] | [INFO] [stdout] 14 | io::{BufRead, BufReader, Read, Seek, SeekFrom}, [INFO] [stdout] | ^^^^ [INFO] [stdout] 15 | sync::{Arc, Mutex}, [INFO] [stdout] 16 | thread::{self, spawn}, [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `diesel::result` [INFO] [stdout] --> src/rust_study20240812_anyhow.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use diesel::result; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::fs::File` [INFO] [stdout] --> src/read_json.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::fs::File; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Value` and `value` [INFO] [stdout] --> src/read_json.rs:3:18 [INFO] [stdout] | [INFO] [stdout] 3 | use serde_json::{value, Value}; [INFO] [stdout] | ^^^^^ ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `chrono::prelude` [INFO] [stdout] --> src/rust_study_0510.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use chrono::prelude; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `default`, `fs::File`, and `io::Read` [INFO] [stdout] --> src/rust_study_0510.rs:2:11 [INFO] [stdout] | [INFO] [stdout] 2 | use std::{default, fs::File, io::Read}; [INFO] [stdout] | ^^^^^^^ ^^^^^^^^ ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `diesel::pg::PgConnection` [INFO] [stdout] --> src/main.rs:25:5 [INFO] [stdout] | [INFO] [stdout] 25 | use diesel::pg::PgConnection; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `fs::File` and `io::Read` [INFO] [stdout] --> src/rust_study20240812_anyhow.rs:1:11 [INFO] [stdout] | [INFO] [stdout] 1 | use std::{fs::File, io::Read}; [INFO] [stdout] | ^^^^^^^^ ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Ok` and `Result` [INFO] [stdout] --> src/rust_study20240812_anyhow.rs:3:14 [INFO] [stdout] | [INFO] [stdout] 3 | use anyhow::{Ok, Result}; [INFO] [stdout] | ^^ ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `diesel::result` [INFO] [stdout] --> src/rust_study20240812_anyhow.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use diesel::result; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable expression [INFO] [stdout] --> src/tokiotest.rs:37:5 [INFO] [stdout] | [INFO] [stdout] 22 | / loop { [INFO] [stdout] 23 | | let mut socket = l.accept().await?; [INFO] [stdout] 24 | | println!("new request!!"); [INFO] [stdout] 25 | | tokio::spawn(async move { [INFO] [stdout] ... | [INFO] [stdout] 35 | | }); [INFO] [stdout] 36 | | } [INFO] [stdout] | |_____- any code following this expression is unreachable [INFO] [stdout] 37 | Ok(()) [INFO] [stdout] | ^^^^^^ unreachable expression [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable expression [INFO] [stdout] --> src/tokiotest.rs:37:5 [INFO] [stdout] | [INFO] [stdout] 22 | / loop { [INFO] [stdout] 23 | | let mut socket = l.accept().await?; [INFO] [stdout] 24 | | println!("new request!!"); [INFO] [stdout] 25 | | tokio::spawn(async move { [INFO] [stdout] ... | [INFO] [stdout] 35 | | }); [INFO] [stdout] 36 | | } [INFO] [stdout] | |_____- any code following this expression is unreachable [INFO] [stdout] 37 | Ok(()) [INFO] [stdout] | ^^^^^^ unreachable expression [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable statement [INFO] [stdout] --> src/main.rs:42:5 [INFO] [stdout] | [INFO] [stdout] 41 | panic!("end"); [INFO] [stdout] | ------------- any code following this expression is unreachable [INFO] [stdout] 42 | abc367::main(); [INFO] [stdout] | ^^^^^^^^^^^^^^^ unreachable statement [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable statement [INFO] [stdout] --> src/main.rs:42:5 [INFO] [stdout] | [INFO] [stdout] 41 | panic!("end"); [INFO] [stdout] | ------------- any code following this expression is unreachable [INFO] [stdout] 42 | abc367::main(); [INFO] [stdout] | ^^^^^^^^^^^^^^^ unreachable statement [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `y` [INFO] [stdout] --> src/ahc.rs:37:13 [INFO] [stdout] | [INFO] [stdout] 37 | for y in 0..y { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_y` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/ahc.rs:39:17 [INFO] [stdout] | [INFO] [stdout] 39 | for x in 0..x { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `y` [INFO] [stdout] --> src/ahc.rs:37:13 [INFO] [stdout] | [INFO] [stdout] 37 | for y in 0..y { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_y` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/ahc.rs:39:17 [INFO] [stdout] | [INFO] [stdout] 39 | for x in 0..x { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable pattern [INFO] [stdout] --> src/q1.rs:42:9 [INFO] [stdout] | [INFO] [stdout] 41 | _ => println!("hoge"), [INFO] [stdout] | - matches any value [INFO] [stdout] 42 | None => print!("non"), [INFO] [stdout] | ^^^^ no value can reach this [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_patterns)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable pattern [INFO] [stdout] --> src/q1.rs:42:9 [INFO] [stdout] | [INFO] [stdout] 41 | _ => println!("hoge"), [INFO] [stdout] | - matches any value [INFO] [stdout] 42 | None => print!("non"), [INFO] [stdout] | ^^^^ no value can reach this [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_patterns)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `f` [INFO] [stdout] --> src/q1.rs:47:9 [INFO] [stdout] | [INFO] [stdout] 47 | let f = Some(4); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_f` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `f` [INFO] [stdout] --> src/q1.rs:47:9 [INFO] [stdout] | [INFO] [stdout] 47 | let f = Some(4); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_f` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `ans` [INFO] [stdout] --> src/q1.rs:85:9 [INFO] [stdout] | [INFO] [stdout] 85 | let ans = q1_3_option(); [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_ans` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `a` [INFO] [stdout] --> src/q1.rs:90:9 [INFO] [stdout] | [INFO] [stdout] 90 | let a = q1_4_esult(32); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_a` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `a` [INFO] [stdout] --> src/q1.rs:160:28 [INFO] [stdout] | [INFO] [stdout] 160 | fn t<'a, 'b: 'a, T: Debug>(a: &'a str, b: &'b T) { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_a` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `b` [INFO] [stdout] --> src/q1.rs:160:40 [INFO] [stdout] | [INFO] [stdout] 160 | fn t<'a, 'b: 'a, T: Debug>(a: &'a str, b: &'b T) { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_b` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `ans` [INFO] [stdout] --> src/q1.rs:85:9 [INFO] [stdout] | [INFO] [stdout] 85 | let ans = q1_3_option(); [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_ans` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/q1.rs:164:22 [INFO] [stdout] | [INFO] [stdout] 164 | fn f<'a, T: Display>(x: &'a str, y: &'a T) {} [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `y` [INFO] [stdout] --> src/q1.rs:164:34 [INFO] [stdout] | [INFO] [stdout] 164 | fn f<'a, T: Display>(x: &'a str, y: &'a T) {} [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_y` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `a` [INFO] [stdout] --> src/q1.rs:90:9 [INFO] [stdout] | [INFO] [stdout] 90 | let a = q1_4_esult(32); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_a` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `a` [INFO] [stdout] --> src/q1.rs:160:28 [INFO] [stdout] | [INFO] [stdout] 160 | fn t<'a, 'b: 'a, T: Debug>(a: &'a str, b: &'b T) { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_a` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `b` [INFO] [stdout] --> src/q1.rs:160:40 [INFO] [stdout] | [INFO] [stdout] 160 | fn t<'a, 'b: 'a, T: Debug>(a: &'a str, b: &'b T) { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_b` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/q1.rs:164:22 [INFO] [stdout] | [INFO] [stdout] 164 | fn f<'a, T: Display>(x: &'a str, y: &'a T) {} [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `y` [INFO] [stdout] --> src/q1.rs:164:34 [INFO] [stdout] | [INFO] [stdout] 164 | fn f<'a, T: Display>(x: &'a str, y: &'a T) {} [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_y` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/q4.rs:23:9 [INFO] [stdout] | [INFO] [stdout] 23 | let mut arcTest = Arc::new(42); [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: `str` [INFO] [stdout] --> src/q4.rs:70:13 [INFO] [stdout] | [INFO] [stdout] 70 | let mut str = String::new(); [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_str` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `h` [INFO] [stdout] --> src/q4.rs:72:13 [INFO] [stdout] | [INFO] [stdout] 72 | let mut h: HashMap = HashMap::new(); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_h` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `l` [INFO] [stdout] --> src/q4.rs:87:17 [INFO] [stdout] | [INFO] [stdout] 87 | let l = reader.read_line(&mut b).unwrap(); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_l` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `v` [INFO] [stdout] --> src/q4.rs:92:21 [INFO] [stdout] | [INFO] [stdout] 92 | let v = locked_count_map.get(word).unwrap(); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_v` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/q4.rs:23:9 [INFO] [stdout] | [INFO] [stdout] 23 | let mut arcTest = Arc::new(42); [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: `e` [INFO] [stdout] --> src/q4.rs:93:21 [INFO] [stdout] | [INFO] [stdout] 93 | let e = locked_count_map.entry("a".to_string()).or_insert(3); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_e` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `str` [INFO] [stdout] --> src/q4.rs:70:13 [INFO] [stdout] | [INFO] [stdout] 70 | let mut str = String::new(); [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_str` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `h` [INFO] [stdout] --> src/q4.rs:72:13 [INFO] [stdout] | [INFO] [stdout] 72 | let mut h: HashMap = HashMap::new(); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_h` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `l` [INFO] [stdout] --> src/q4.rs:87:17 [INFO] [stdout] | [INFO] [stdout] 87 | let l = reader.read_line(&mut b).unwrap(); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_l` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `v` [INFO] [stdout] --> src/q4.rs:92:21 [INFO] [stdout] | [INFO] [stdout] 92 | let v = locked_count_map.get(word).unwrap(); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_v` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `e` [INFO] [stdout] --> src/q4.rs:93:21 [INFO] [stdout] | [INFO] [stdout] 93 | let e = locked_count_map.entry("a".to_string()).or_insert(3); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_e` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/q4.rs:70:9 [INFO] [stdout] | [INFO] [stdout] 70 | let mut str = String::new(); [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/q4.rs:71:9 [INFO] [stdout] | [INFO] [stdout] 71 | let mut countMap: Arc>> = Arc::new(Mutex::new(HashMap::new())); [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/q4.rs:72:9 [INFO] [stdout] | [INFO] [stdout] 72 | let mut h: HashMap = HashMap::new(); [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/q4.rs:74:9 [INFO] [stdout] | [INFO] [stdout] 74 | let mut f = File::open("memo.md").unwrap(); // file::openはファイルハンドラだから100TB読むわけではない [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `list` [INFO] [stdout] --> src/q5.rs:3:9 [INFO] [stdout] | [INFO] [stdout] 3 | let list = [6, 7, 8, 9, 8, 7, 6, 4, 7, 4]; [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_list` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `v_list` [INFO] [stdout] --> src/q5.rs:4:9 [INFO] [stdout] | [INFO] [stdout] 4 | let v_list: Vec = vec![6, 7, 8, 9, 8, 7, 6, 4, 7, 4]; [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_v_list` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/abc076.rs:9:9 [INFO] [stdout] | [INFO] [stdout] 9 | for i in 0..n { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/q4.rs:70:9 [INFO] [stdout] | [INFO] [stdout] 70 | let mut str = String::new(); [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/q4.rs:71:9 [INFO] [stdout] | [INFO] [stdout] 71 | let mut countMap: Arc>> = Arc::new(Mutex::new(HashMap::new())); [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/q4.rs:72:9 [INFO] [stdout] | [INFO] [stdout] 72 | let mut h: HashMap = HashMap::new(); [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/q4.rs:74:9 [INFO] [stdout] | [INFO] [stdout] 74 | let mut f = File::open("memo.md").unwrap(); // file::openはファイルハンドラだから100TB読むわけではない [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `list` [INFO] [stdout] --> src/q5.rs:3:9 [INFO] [stdout] | [INFO] [stdout] 3 | let list = [6, 7, 8, 9, 8, 7, 6, 4, 7, 4]; [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_list` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `v_list` [INFO] [stdout] --> src/q5.rs:4:9 [INFO] [stdout] | [INFO] [stdout] 4 | let v_list: Vec = vec![6, 7, 8, 9, 8, 7, 6, 4, 7, 4]; [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_v_list` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/abc076.rs:9:9 [INFO] [stdout] | [INFO] [stdout] 9 | for i in 0..n { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `index` [INFO] [stdout] --> src/abc353.rs:44:19 [INFO] [stdout] | [INFO] [stdout] 44 | Some((index, &value)) => { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_index` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `index` [INFO] [stdout] --> src/abc353.rs:44:19 [INFO] [stdout] | [INFO] [stdout] 44 | Some((index, &value)) => { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_index` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `min` [INFO] [stdout] --> src/atcode_beginers_selection.rs:30:9 [INFO] [stdout] | [INFO] [stdout] 30 | let min = a.iter().min().unwrap().clone(); [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_min` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `k` [INFO] [stdout] --> src/atcode_beginers_selection.rs:53:16 [INFO] [stdout] | [INFO] [stdout] 53 | (n, m, k):(i32,i32,i32), [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_k` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `a` [INFO] [stdout] --> src/atcode_beginers_selection.rs:54:9 [INFO] [stdout] | [INFO] [stdout] 54 | a: [[i32;n];n], [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_a` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s` [INFO] [stdout] --> src/atcode_beginers_selection.rs:55:9 [INFO] [stdout] | [INFO] [stdout] 55 | s:[[i32;3];m*3] [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `min` [INFO] [stdout] --> src/atcode_beginers_selection.rs:30:9 [INFO] [stdout] | [INFO] [stdout] 30 | let min = a.iter().min().unwrap().clone(); [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_min` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `k` [INFO] [stdout] --> src/atcode_beginers_selection.rs:53:16 [INFO] [stdout] | [INFO] [stdout] 53 | (n, m, k):(i32,i32,i32), [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_k` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `a` [INFO] [stdout] --> src/atcode_beginers_selection.rs:54:9 [INFO] [stdout] | [INFO] [stdout] 54 | a: [[i32;n];n], [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_a` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s` [INFO] [stdout] --> src/atcode_beginers_selection.rs:55:9 [INFO] [stdout] | [INFO] [stdout] 55 | s:[[i32;3];m*3] [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/rust_study_0510.rs:40:9 [INFO] [stdout] | [INFO] [stdout] 40 | let mut even: Vec<&str> = Vec::new(); [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `y` [INFO] [stdout] --> src/rust_study_0510.rs:78:9 [INFO] [stdout] | [INFO] [stdout] 78 | let y = x; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_y` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `t` [INFO] [stdout] --> src/tokiotest.rs:13:13 [INFO] [stdout] | [INFO] [stdout] 13 | let mut t = TcpStream::connect("example.com:80").await?; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_t` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `request` [INFO] [stdout] --> src/tokiotest.rs:15:9 [INFO] [stdout] | [INFO] [stdout] 15 | let request = b"GET HTTP1.1 example.com"; [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_request` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/rust_study_0510.rs:40:9 [INFO] [stdout] | [INFO] [stdout] 40 | let mut even: Vec<&str> = Vec::new(); [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `y` [INFO] [stdout] --> src/rust_study_0510.rs:78:9 [INFO] [stdout] | [INFO] [stdout] 78 | let y = x; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_y` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `t` [INFO] [stdout] --> src/tokiotest.rs:13:13 [INFO] [stdout] | [INFO] [stdout] 13 | let mut t = TcpStream::connect("example.com:80").await?; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_t` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `request` [INFO] [stdout] --> src/tokiotest.rs:15:9 [INFO] [stdout] | [INFO] [stdout] 15 | let request = b"GET HTTP1.1 example.com"; [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_request` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/tokiotest.rs:13:9 [INFO] [stdout] | [INFO] [stdout] 13 | let mut t = TcpStream::connect("example.com:80").await?; [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/tokiotest.rs:13:9 [INFO] [stdout] | [INFO] [stdout] 13 | let mut t = TcpStream::connect("example.com:80").await?; [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `k` [INFO] [stdout] --> src/abc367.rs:46:13 [INFO] [stdout] | [INFO] [stdout] 46 | (n, k): (i32, i32), [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_k` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `k` [INFO] [stdout] --> src/abc367.rs:46:13 [INFO] [stdout] | [INFO] [stdout] 46 | (n, k): (i32, i32), [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_k` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `n` [INFO] [stdout] --> src/generic_where_plactice.rs:2:9 [INFO] [stdout] | [INFO] [stdout] 2 | let n = N { s: 4 }; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_n` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `a` [INFO] [stdout] --> src/rust_study20240812.rs:120:9 [INFO] [stdout] | [INFO] [stdout] 120 | let a = s.size(); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_a` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `n` [INFO] [stdout] --> src/generic_where_plactice.rs:2:9 [INFO] [stdout] | [INFO] [stdout] 2 | let n = N { s: 4 }; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_n` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `a` [INFO] [stdout] --> src/rust_study20240812.rs:120:9 [INFO] [stdout] | [INFO] [stdout] 120 | let a = s.size(); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_a` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error; 50 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error; 50 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `rust-playground` (bin "rust-playground") due to 2 previous errors; 50 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: could not compile `rust-playground` (bin "rust-playground" test) due to 2 previous errors; 50 warnings emitted [INFO] [stderr] error: failed to check after updating to 2024 [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `cargo check --frozen --all --all-targets --message-format=json` (exit status: 101) [INFO] running `Command { std: "docker" "inspect" "c06a0bf20ad1e0a37b78a27c00bf95885e67777feccc16f2960e9392cf58de49", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c06a0bf20ad1e0a37b78a27c00bf95885e67777feccc16f2960e9392cf58de49", kill_on_drop: false }` [INFO] [stdout] c06a0bf20ad1e0a37b78a27c00bf95885e67777feccc16f2960e9392cf58de49