[INFO] cloning repository https://github.com/littlebluewhite/rust_algorithm [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/littlebluewhite/rust_algorithm" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flittlebluewhite%2Frust_algorithm", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flittlebluewhite%2Frust_algorithm'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] a7eeb685ca2d3caec645aac231a27ad2a4c9916d [INFO] checking littlebluewhite/rust_algorithm/a7eeb685ca2d3caec645aac231a27ad2a4c9916d against master#568b11762723b001bfa693d0f21c5dad01d4e813 for pr-149518 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flittlebluewhite%2Frust_algorithm" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/littlebluewhite/rust_algorithm [INFO] finished tweaking git repo https://github.com/littlebluewhite/rust_algorithm [INFO] tweaked toml for git repo https://github.com/littlebluewhite/rust_algorithm written to /workspace/builds/worker-2-tc1/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/littlebluewhite/rust_algorithm on toolchain 568b11762723b001bfa693d0f21c5dad01d4e813 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+568b11762723b001bfa693d0f21c5dad01d4e813" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/littlebluewhite/rust_algorithm 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" "+568b11762723b001bfa693d0f21c5dad01d4e813" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded scraper v0.20.0 [INFO] [stderr] Downloaded trpl v0.3.0 [INFO] [stderr] Downloaded rustls v0.23.34 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+568b11762723b001bfa693d0f21c5dad01d4e813" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 15d75bc5ee94a9aa1ad37d6aa9f25ea7be2c623d9f79728bb107404a563ab4d5 [INFO] running `Command { std: "docker" "start" "-a" "15d75bc5ee94a9aa1ad37d6aa9f25ea7be2c623d9f79728bb107404a563ab4d5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "15d75bc5ee94a9aa1ad37d6aa9f25ea7be2c623d9f79728bb107404a563ab4d5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "15d75bc5ee94a9aa1ad37d6aa9f25ea7be2c623d9f79728bb107404a563ab4d5", kill_on_drop: false }` [INFO] [stdout] 15d75bc5ee94a9aa1ad37d6aa9f25ea7be2c623d9f79728bb107404a563ab4d5 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+568b11762723b001bfa693d0f21c5dad01d4e813" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 311beac42dc9e3b6391e121fd6289930c00ab497a6c5a95cd233a15d13f76c98 [INFO] running `Command { std: "docker" "start" "-a" "311beac42dc9e3b6391e121fd6289930c00ab497a6c5a95cd233a15d13f76c98", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.177 [INFO] [stderr] Checking stable_deref_trait v1.2.1 [INFO] [stderr] Checking futures-channel v0.3.31 [INFO] [stderr] Compiling quote v1.0.41 [INFO] [stderr] Compiling cc v1.2.44 [INFO] [stderr] Checking tokio v1.48.0 [INFO] [stderr] Checking parking_lot_core v0.9.12 [INFO] [stderr] Compiling rustls v0.23.34 [INFO] [stderr] Checking phf_shared v0.10.0 [INFO] [stderr] Checking tracing v0.1.41 [INFO] [stderr] Checking getrandom v0.3.4 [INFO] [stderr] Checking webpki-roots v1.0.3 [INFO] [stderr] Checking unicode-width v0.2.2 [INFO] [stderr] Checking leetcode v0.1.0 (/opt/rustwide/workdir/leetcode) [INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression [INFO] [stdout] --> leetcode/src/question/q611.rs:7:14 [INFO] [stdout] | [INFO] [stdout] 7 | for k in (2..nums.len()) { [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 7 - for k in (2..nums.len()) { [INFO] [stdout] 7 + for k in 2..nums.len() { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::collections::VecDeque` [INFO] [stdout] --> leetcode/src/question/q2435.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::collections::VecDeque; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking servo_arc v0.3.0 [INFO] [stderr] Checking parking_lot v0.12.5 [INFO] [stderr] Compiling syn v2.0.108 [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> leetcode/src/question/q4.rs:1:31 [INFO] [stdout] | [INFO] [stdout] 1 | fn find_median_sorted_arrays2(mut a: Vec, mut b: Vec) -> f64 { [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> leetcode/src/question/q4.rs:1:48 [INFO] [stdout] | [INFO] [stdout] 1 | fn find_median_sorted_arrays2(mut a: Vec, mut b: Vec) -> f64 { [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `a` [INFO] [stdout] --> leetcode/src/question/q3005.rs:12:9 [INFO] [stdout] | [INFO] [stdout] 12 | let a = elements_frequency.values(); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_a` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `result` is never read [INFO] [stdout] --> leetcode/src/question/q3005.rs:4:22 [INFO] [stdout] | [INFO] [stdout] 4 | let mut result = 0; [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> leetcode/src/question/q166.rs:8:9 [INFO] [stdout] | [INFO] [stdout] 8 | let mut nagitive = false; [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] --> leetcode/src/question/q166.rs:11:9 [INFO] [stdout] | [INFO] [stdout] 11 | let mut nagitive = (n < 0) ^ (d < 0); [INFO] [stdout] | ----^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `nagitive` [INFO] [stdout] --> leetcode/src/question/q166.rs:8:9 [INFO] [stdout] | [INFO] [stdout] 8 | let mut nagitive = false; [INFO] [stdout] | ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_nagitive` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> leetcode/src/question/q3100.rs:1:26 [INFO] [stdout] | [INFO] [stdout] 1 | pub fn max_bottles_drunk(mut num_bottles: i32, mut num_exchange: i32) -> i32 { [INFO] [stdout] | ----^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> leetcode/src/question/q2300.rs:6:10 [INFO] [stdout] | [INFO] [stdout] 6 | for (i, spell) in spells.iter().enumerate() { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking phf v0.10.1 [INFO] [stdout] warning: value assigned to `ans` is never read [INFO] [stdout] --> leetcode/src/question/q1523.rs:2:19 [INFO] [stdout] | [INFO] [stdout] 2 | let mut ans = 0; [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking ahash v0.8.12 [INFO] [stdout] warning: unused variable: `n` [INFO] [stdout] --> leetcode/src/question/q3583.rs:5:9 [INFO] [stdout] | [INFO] [stdout] 5 | let n = nums.len(); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_n` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> leetcode/src/question/aq3573.rs:5:9 [INFO] [stdout] | [INFO] [stdout] 5 | let mut long = vec![NEG; k+1]; [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] --> leetcode/src/question/aq3573.rs:6:9 [INFO] [stdout] | [INFO] [stdout] 6 | let mut short = vec![NEG; k+1]; [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `find_median_sorted_arrays2` is never used [INFO] [stdout] --> leetcode/src/question/q4.rs:1:4 [INFO] [stdout] | [INFO] [stdout] 1 | fn find_median_sorted_arrays2(mut a: Vec, mut b: Vec) -> f64 { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `FoodEntry` is never constructed [INFO] [stdout] --> leetcode/src/question/q2353.rs:5:8 [INFO] [stdout] | [INFO] [stdout] 5 | struct FoodEntry { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `FoodRatings` is never constructed [INFO] [stdout] --> leetcode/src/question/q2353.rs:26:8 [INFO] [stdout] | [INFO] [stdout] 26 | struct FoodRatings { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `change_rating`, and `highest_rated` are never used [INFO] [stdout] --> leetcode/src/question/q2353.rs:32:8 [INFO] [stdout] | [INFO] [stdout] 31 | impl FoodRatings { [INFO] [stdout] | ---------------- associated items in this implementation [INFO] [stdout] 32 | fn new(foods: Vec, cuisines: Vec, ratings: Vec) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 53 | fn change_rating(&mut self, food: String, new_rating: i32) { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 67 | fn highest_rated(&mut self, cuisine: String) -> String { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `TaskManager` is never constructed [INFO] [stdout] --> leetcode/src/question/q3408.rs:19:8 [INFO] [stdout] | [INFO] [stdout] 19 | struct TaskManager { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `add`, `edit`, `rmv`, and `exec_top` are never used [INFO] [stdout] --> leetcode/src/question/q3408.rs:31:8 [INFO] [stdout] | [INFO] [stdout] 29 | impl TaskManager { [INFO] [stdout] | ---------------- associated items in this implementation [INFO] [stdout] 30 | [INFO] [stdout] 31 | fn new(tasks: Vec>) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 44 | fn add(&mut self, user_id: i32, task_id: i32, priority: i32) { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 49 | fn edit(&mut self, task_id: i32, new_priority: i32) { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 56 | fn rmv(&mut self, task_id: i32) { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 60 | fn exec_top(&mut self) -> i32 { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `grid` is never read [INFO] [stdout] --> leetcode/src/question/q3484.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 3 | pub struct Spreadsheet { [INFO] [stdout] | ----------- field in this struct [INFO] [stdout] 4 | grid: Vec<[i32; 26]>, // rows × 26 (A..Z) [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `set_cell`, `reset_cell`, `get_value`, `parse_cell`, and `eval_term` are never used [INFO] [stdout] --> leetcode/src/question/q3484.rs:14:8 [INFO] [stdout] | [INFO] [stdout] 7 | impl Spreadsheet { [INFO] [stdout] | ---------------- associated items in this implementation [INFO] [stdout] ... [INFO] [stdout] 14 | fn set_cell(&mut self, cell: String, value: i32) { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 22 | fn reset_cell(&mut self, cell: String) { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 30 | fn get_value(&self, formula: String) -> i32 { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 44 | fn parse_cell(s: &str) -> Option<(usize, usize)> { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 61 | fn eval_term(&self, term: &str) -> i32 { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Bank` is never constructed [INFO] [stdout] --> leetcode/src/question/q2043.rs:1:8 [INFO] [stdout] | [INFO] [stdout] 1 | struct Bank { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `idx`, `transfer`, `deposit`, and `withdraw` are never used [INFO] [stdout] --> leetcode/src/question/q2043.rs:7:8 [INFO] [stdout] | [INFO] [stdout] 5 | impl Bank { [INFO] [stdout] | --------- associated items in this implementation [INFO] [stdout] 6 | // 建立銀行（輸入為 0-indexed 的餘額陣列，但帳號是 1-indexed） [INFO] [stdout] 7 | fn new(balance: Vec) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 12 | fn idx(&self, account: i32) -> Option { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 22 | fn transfer(&mut self, account1: i32, account2: i32, money: i64) -> bool { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 36 | fn deposit(&mut self, account: i32, money: i64) -> bool { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 43 | fn withdraw(&mut self, account: i32, money: i64) -> bool { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> leetcode/src/question/q3217.rs:12:6 [INFO] [stdout] | [INFO] [stdout] 10 | impl ListNode { [INFO] [stdout] | ------------- associated function in this implementation [INFO] [stdout] 11 | #[inline] [INFO] [stdout] 12 | fn new(val: i32) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression [INFO] [stdout] --> leetcode/src/question/q611.rs:7:14 [INFO] [stdout] | [INFO] [stdout] 7 | for k in (2..nums.len()) { [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 7 - for k in (2..nums.len()) { [INFO] [stdout] 7 + for k in 2..nums.len() { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking getopts v0.2.24 [INFO] [stdout] warning: unused import: `std::collections::VecDeque` [INFO] [stdout] --> leetcode/src/question/q2435.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::collections::VecDeque; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> leetcode/src/question/q4.rs:1:31 [INFO] [stdout] | [INFO] [stdout] 1 | fn find_median_sorted_arrays2(mut a: Vec, mut b: Vec) -> f64 { [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> leetcode/src/question/q4.rs:1:48 [INFO] [stdout] | [INFO] [stdout] 1 | fn find_median_sorted_arrays2(mut a: Vec, mut b: Vec) -> f64 { [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] --> leetcode/src/question/q30.rs:113:13 [INFO] [stdout] | [INFO] [stdout] 113 | let mut result = find_substring(s, words); [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] --> leetcode/src/question/q30.rs:128:13 [INFO] [stdout] | [INFO] [stdout] 128 | let mut result = find_substring(s, words); [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] --> leetcode/src/question/q30.rs:143:13 [INFO] [stdout] | [INFO] [stdout] 143 | let mut result = find_substring(s, words); [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] --> leetcode/src/question/q30.rs:172:13 [INFO] [stdout] | [INFO] [stdout] 172 | let mut result = find_substring(s, words); [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] --> leetcode/src/question/q30.rs:197:13 [INFO] [stdout] | [INFO] [stdout] 197 | let mut result = find_substring(s, words); [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] --> leetcode/src/question/q30.rs:210:13 [INFO] [stdout] | [INFO] [stdout] 210 | let mut result = find_substring(s, words); [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] --> leetcode/src/question/q30.rs:224:13 [INFO] [stdout] | [INFO] [stdout] 224 | let mut result = find_substring(s, words); [INFO] [stdout] | ----^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `a` [INFO] [stdout] --> leetcode/src/question/q3005.rs:12:9 [INFO] [stdout] | [INFO] [stdout] 12 | let a = elements_frequency.values(); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_a` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `result` is never read [INFO] [stdout] --> leetcode/src/question/q3005.rs:4:22 [INFO] [stdout] | [INFO] [stdout] 4 | let mut result = 0; [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> leetcode/src/question/q166.rs:8:9 [INFO] [stdout] | [INFO] [stdout] 8 | let mut nagitive = false; [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] --> leetcode/src/question/q166.rs:11:9 [INFO] [stdout] | [INFO] [stdout] 11 | let mut nagitive = (n < 0) ^ (d < 0); [INFO] [stdout] | ----^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `nagitive` [INFO] [stdout] --> leetcode/src/question/q166.rs:8:9 [INFO] [stdout] | [INFO] [stdout] 8 | let mut nagitive = false; [INFO] [stdout] | ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_nagitive` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> leetcode/src/question/q3100.rs:1:26 [INFO] [stdout] | [INFO] [stdout] 1 | pub fn max_bottles_drunk(mut num_bottles: i32, mut num_exchange: i32) -> i32 { [INFO] [stdout] | ----^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> leetcode/src/question/q2300.rs:6:10 [INFO] [stdout] | [INFO] [stdout] 6 | for (i, spell) in spells.iter().enumerate() { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `ans` is never read [INFO] [stdout] --> leetcode/src/question/q1523.rs:2:19 [INFO] [stdout] | [INFO] [stdout] 2 | let mut ans = 0; [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `n` [INFO] [stdout] --> leetcode/src/question/q3583.rs:5:9 [INFO] [stdout] | [INFO] [stdout] 5 | let n = nums.len(); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_n` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> leetcode/src/question/aq3573.rs:5:9 [INFO] [stdout] | [INFO] [stdout] 5 | let mut long = vec![NEG; k+1]; [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] --> leetcode/src/question/aq3573.rs:6:9 [INFO] [stdout] | [INFO] [stdout] 6 | let mut short = vec![NEG; k+1]; [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `find_median_sorted_arrays2` is never used [INFO] [stdout] --> leetcode/src/question/q4.rs:1:4 [INFO] [stdout] | [INFO] [stdout] 1 | fn find_median_sorted_arrays2(mut a: Vec, mut b: Vec) -> f64 { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `FoodEntry` is never constructed [INFO] [stdout] --> leetcode/src/question/q2353.rs:5:8 [INFO] [stdout] | [INFO] [stdout] 5 | struct FoodEntry { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `FoodRatings` is never constructed [INFO] [stdout] --> leetcode/src/question/q2353.rs:26:8 [INFO] [stdout] | [INFO] [stdout] 26 | struct FoodRatings { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `change_rating`, and `highest_rated` are never used [INFO] [stdout] --> leetcode/src/question/q2353.rs:32:8 [INFO] [stdout] | [INFO] [stdout] 31 | impl FoodRatings { [INFO] [stdout] | ---------------- associated items in this implementation [INFO] [stdout] 32 | fn new(foods: Vec, cuisines: Vec, ratings: Vec) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 53 | fn change_rating(&mut self, food: String, new_rating: i32) { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 67 | fn highest_rated(&mut self, cuisine: String) -> String { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `TaskManager` is never constructed [INFO] [stdout] --> leetcode/src/question/q3408.rs:19:8 [INFO] [stdout] | [INFO] [stdout] 19 | struct TaskManager { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `add`, `edit`, `rmv`, and `exec_top` are never used [INFO] [stdout] --> leetcode/src/question/q3408.rs:31:8 [INFO] [stdout] | [INFO] [stdout] 29 | impl TaskManager { [INFO] [stdout] | ---------------- associated items in this implementation [INFO] [stdout] 30 | [INFO] [stdout] 31 | fn new(tasks: Vec>) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 44 | fn add(&mut self, user_id: i32, task_id: i32, priority: i32) { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 49 | fn edit(&mut self, task_id: i32, new_priority: i32) { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 56 | fn rmv(&mut self, task_id: i32) { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 60 | fn exec_top(&mut self) -> i32 { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `grid` is never read [INFO] [stdout] --> leetcode/src/question/q3484.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 3 | pub struct Spreadsheet { [INFO] [stdout] | ----------- field in this struct [INFO] [stdout] 4 | grid: Vec<[i32; 26]>, // rows × 26 (A..Z) [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `set_cell`, `reset_cell`, `get_value`, `parse_cell`, and `eval_term` are never used [INFO] [stdout] --> leetcode/src/question/q3484.rs:14:8 [INFO] [stdout] | [INFO] [stdout] 7 | impl Spreadsheet { [INFO] [stdout] | ---------------- associated items in this implementation [INFO] [stdout] ... [INFO] [stdout] 14 | fn set_cell(&mut self, cell: String, value: i32) { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 22 | fn reset_cell(&mut self, cell: String) { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 30 | fn get_value(&self, formula: String) -> i32 { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 44 | fn parse_cell(s: &str) -> Option<(usize, usize)> { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 61 | fn eval_term(&self, term: &str) -> i32 { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Bank` is never constructed [INFO] [stdout] --> leetcode/src/question/q2043.rs:1:8 [INFO] [stdout] | [INFO] [stdout] 1 | struct Bank { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `idx`, `transfer`, `deposit`, and `withdraw` are never used [INFO] [stdout] --> leetcode/src/question/q2043.rs:7:8 [INFO] [stdout] | [INFO] [stdout] 5 | impl Bank { [INFO] [stdout] | --------- associated items in this implementation [INFO] [stdout] 6 | // 建立銀行（輸入為 0-indexed 的餘額陣列，但帳號是 1-indexed） [INFO] [stdout] 7 | fn new(balance: Vec) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 12 | fn idx(&self, account: i32) -> Option { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 22 | fn transfer(&mut self, account1: i32, account2: i32, money: i64) -> bool { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 36 | fn deposit(&mut self, account: i32, money: i64) -> bool { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 43 | fn withdraw(&mut self, account: i32, money: i64) -> bool { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> leetcode/src/question/q3217.rs:12:6 [INFO] [stdout] | [INFO] [stdout] 10 | impl ListNode { [INFO] [stdout] | ------------- associated function in this implementation [INFO] [stdout] 11 | #[inline] [INFO] [stdout] 12 | fn new(val: i32) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling getrandom v0.2.16 [INFO] [stderr] Compiling rand_core v0.6.4 [INFO] [stderr] Compiling rand_chacha v0.3.1 [INFO] [stderr] Compiling ring v0.17.14 [INFO] [stderr] Compiling rand v0.8.5 [INFO] [stderr] Compiling phf_generator v0.11.3 [INFO] [stderr] Compiling phf_generator v0.10.0 [INFO] [stderr] Compiling phf_codegen v0.10.0 [INFO] [stderr] Compiling string_cache_codegen v0.5.4 [INFO] [stderr] Compiling phf_codegen v0.11.3 [INFO] [stderr] Compiling selectors v0.25.0 [INFO] [stderr] Compiling markup5ever v0.12.1 [INFO] [stderr] Checking hyper v1.7.0 [INFO] [stderr] Checking tokio-stream v0.1.17 [INFO] [stderr] Compiling synstructure v0.13.2 [INFO] [stderr] Checking rustls-webpki v0.103.8 [INFO] [stderr] Compiling zerofrom-derive v0.1.6 [INFO] [stderr] Compiling yoke-derive v0.8.1 [INFO] [stderr] Compiling zerovec-derive v0.11.2 [INFO] [stderr] Compiling displaydoc v0.2.5 [INFO] [stderr] Compiling futures-macro v0.3.31 [INFO] [stderr] Compiling serde_derive v1.0.228 [INFO] [stderr] Compiling phf_macros v0.11.3 [INFO] [stderr] Compiling cssparser-macros v0.6.1 [INFO] [stderr] Compiling html5ever v0.27.0 [INFO] [stderr] Compiling derive_more v0.99.20 [INFO] [stderr] Checking futures-util v0.3.31 [INFO] [stderr] Checking phf v0.11.3 [INFO] [stderr] Checking zerofrom v0.1.6 [INFO] [stderr] Checking yoke v0.8.1 [INFO] [stderr] Checking cssparser v0.31.2 [INFO] [stderr] Checking zerovec v0.11.5 [INFO] [stderr] Checking zerotrie v0.2.3 [INFO] [stderr] Checking tinystr v0.8.2 [INFO] [stderr] Checking potential_utf v0.1.4 [INFO] [stderr] Checking icu_collections v2.1.1 [INFO] [stderr] Checking icu_locale_core v2.1.1 [INFO] [stderr] Checking icu_provider v2.1.1 [INFO] [stderr] Checking icu_properties v2.1.1 [INFO] [stderr] Checking icu_normalizer v2.1.1 [INFO] [stderr] Checking serde v1.0.228 [INFO] [stderr] Checking tokio-rustls v0.26.4 [INFO] [stderr] Checking tower v0.5.2 [INFO] [stderr] Checking hyper-util v0.1.17 [INFO] [stderr] Checking futures-executor v0.3.31 [INFO] [stderr] Checking futures v0.3.31 [INFO] [stderr] Checking string_cache v0.8.9 [INFO] [stderr] Checking serde_urlencoded v0.7.1 [INFO] [stderr] Checking tower-http v0.6.6 [INFO] [stderr] Checking hyper-rustls v0.27.7 [INFO] [stderr] Checking idna_adapter v1.2.1 [INFO] [stderr] Checking idna v1.1.0 [INFO] [stderr] Checking url v2.5.7 [INFO] [stderr] Checking reqwest v0.12.24 [INFO] [stderr] Checking scraper v0.20.0 [INFO] [stderr] Checking trpl v0.3.0 [INFO] [stderr] Checking book v0.1.0 (/opt/rustwide/workdir/book) [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> book/src/chapter/c13.rs:63:9 [INFO] [stdout] | [INFO] [stdout] 63 | let mut list = [ [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `list` [INFO] [stdout] --> book/src/chapter/c13.rs:63:9 [INFO] [stdout] | [INFO] [stdout] 63 | let mut list = [ [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_list` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `c` [INFO] [stdout] --> book/src/chapter/c15.rs:12:9 [INFO] [stdout] | [INFO] [stdout] 12 | let c = CustomSmartPointer { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_c` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `d` [INFO] [stdout] --> book/src/chapter/c15.rs:15:9 [INFO] [stdout] | [INFO] [stdout] 15 | let d = CustomSmartPointer { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_d` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `f` [INFO] [stdout] --> book/src/chapter/c15.rs:48:9 [INFO] [stdout] | [INFO] [stdout] 48 | let f = *value.borrow_mut(); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_f` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `height` is never read [INFO] [stdout] --> book/src/chapter/c13.rs:59:5 [INFO] [stdout] | [INFO] [stdout] 57 | struct Rectangle { [INFO] [stdout] | --------- field in this struct [INFO] [stdout] 58 | width: u32, [INFO] [stdout] 59 | height: u32, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Rectangle` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `0` and `1` are never read [INFO] [stdout] --> book/src/chapter/c15.rs:32:10 [INFO] [stdout] | [INFO] [stdout] 32 | Cons(Rc>, Rc), [INFO] [stdout] | ---- ^^^^^^^^^^^^^^^^ ^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | fields in this variant [INFO] [stdout] | [INFO] [stdout] = note: `List` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields [INFO] [stdout] | [INFO] [stdout] 32 - Cons(Rc>, Rc), [INFO] [stdout] 32 + Cons((), ()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `value` and `children` are never read [INFO] [stdout] --> book/src/chapter/c15.rs:96:5 [INFO] [stdout] | [INFO] [stdout] 95 | struct Node { [INFO] [stdout] | ---- fields in this struct [INFO] [stdout] 96 | value: i32, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 97 | parent: RefCell>, [INFO] [stdout] 98 | children: RefCell>>, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Node` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> book/src/chapter/c13.rs:63:9 [INFO] [stdout] | [INFO] [stdout] 63 | let mut list = [ [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `list` [INFO] [stdout] --> book/src/chapter/c13.rs:63:9 [INFO] [stdout] | [INFO] [stdout] 63 | let mut list = [ [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_list` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `c` [INFO] [stdout] --> book/src/chapter/c15.rs:12:9 [INFO] [stdout] | [INFO] [stdout] 12 | let c = CustomSmartPointer { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_c` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `d` [INFO] [stdout] --> book/src/chapter/c15.rs:15:9 [INFO] [stdout] | [INFO] [stdout] 15 | let d = CustomSmartPointer { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_d` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `f` [INFO] [stdout] --> book/src/chapter/c15.rs:48:9 [INFO] [stdout] | [INFO] [stdout] 48 | let f = *value.borrow_mut(); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_f` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `height` is never read [INFO] [stdout] --> book/src/chapter/c13.rs:59:5 [INFO] [stdout] | [INFO] [stdout] 57 | struct Rectangle { [INFO] [stdout] | --------- field in this struct [INFO] [stdout] 58 | width: u32, [INFO] [stdout] 59 | height: u32, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Rectangle` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Shoe` is never constructed [INFO] [stdout] --> book/src/chapter/c13.rs:84:8 [INFO] [stdout] | [INFO] [stdout] 84 | struct Shoe { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `shoes_in_size` is never used [INFO] [stdout] --> book/src/chapter/c13.rs:89:4 [INFO] [stdout] | [INFO] [stdout] 89 | fn shoes_in_size(shoes: Vec, shoe_size: u32) -> Vec { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `0` and `1` are never read [INFO] [stdout] --> book/src/chapter/c15.rs:32:10 [INFO] [stdout] | [INFO] [stdout] 32 | Cons(Rc>, Rc), [INFO] [stdout] | ---- ^^^^^^^^^^^^^^^^ ^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | fields in this variant [INFO] [stdout] | [INFO] [stdout] = note: `List` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields [INFO] [stdout] | [INFO] [stdout] 32 - Cons(Rc>, Rc), [INFO] [stdout] 32 + Cons((), ()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `value` and `children` are never read [INFO] [stdout] --> book/src/chapter/c15.rs:96:5 [INFO] [stdout] | [INFO] [stdout] 95 | struct Node { [INFO] [stdout] | ---- fields in this struct [INFO] [stdout] 96 | value: i32, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 97 | parent: RefCell>, [INFO] [stdout] 98 | children: RefCell>>, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Node` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking rust_algorithm v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 23.65s [INFO] running `Command { std: "docker" "inspect" "311beac42dc9e3b6391e121fd6289930c00ab497a6c5a95cd233a15d13f76c98", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "311beac42dc9e3b6391e121fd6289930c00ab497a6c5a95cd233a15d13f76c98", kill_on_drop: false }` [INFO] [stdout] 311beac42dc9e3b6391e121fd6289930c00ab497a6c5a95cd233a15d13f76c98