[INFO] cloning repository https://github.com/qinxiaoguang/rs-lc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/qinxiaoguang/rs-lc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fqinxiaoguang%2Frs-lc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fqinxiaoguang%2Frs-lc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b4f392e994d76c93a7dfcfa4d3d7ac8b12e7b2bc
[INFO] checking qinxiaoguang/rs-lc against try#f6e2f78768c57172b99c3e85892f867894dc7e30 for pr-75502
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fqinxiaoguang%2Frs-lc" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/qinxiaoguang/rs-lc on toolchain f6e2f78768c57172b99c3e85892f867894dc7e30
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/qinxiaoguang/rs-lc
[INFO] finished tweaking git repo https://github.com/qinxiaoguang/rs-lc
[INFO] tweaked toml for git repo https://github.com/qinxiaoguang/rs-lc written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/qinxiaoguang/rs-lc already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 48ad9158876f56844101535f7caffd0dfefa636f7eb285fd9b9a8eb04dd8933e
[INFO] running `Command { std: "docker" "start" "-a" "48ad9158876f56844101535f7caffd0dfefa636f7eb285fd9b9a8eb04dd8933e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "48ad9158876f56844101535f7caffd0dfefa636f7eb285fd9b9a8eb04dd8933e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "48ad9158876f56844101535f7caffd0dfefa636f7eb285fd9b9a8eb04dd8933e", kill_on_drop: false }`
[INFO] [stdout] 48ad9158876f56844101535f7caffd0dfefa636f7eb285fd9b9a8eb04dd8933e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d55fbbc24c827d0106b818f4e8d33946da002441111fd470d3e422eefb7a5446
[INFO] running `Command { std: "docker" "start" "-a" "d55fbbc24c827d0106b818f4e8d33946da002441111fd470d3e422eefb7a5446", kill_on_drop: false }`
[INFO] [stderr]     Checking rs-lc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::cell::RefCell`
[INFO] [stdout]   --> src/solution/l021.rs:54:5
[INFO] [stdout]    |
[INFO] [stdout] 54 | use std::cell::RefCell;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]   --> src/solution/l021.rs:55:5
[INFO] [stdout]    |
[INFO] [stdout] 55 | use std::rc::Rc;
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `HashSet`
[INFO] [stdout]  --> src/solution/l049.rs:2:33
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::collections::{HashMap, HashSet};
[INFO] [stdout]   |                                 ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]  --> src/solution/l049.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | / macro_rules! sf {
[INFO] [stdout] 5 | |     ($str:expr) => {
[INFO] [stdout] 6 | |         String::from($str)
[INFO] [stdout] 7 | |     };
[INFO] [stdout] 8 | | }
[INFO] [stdout]   | |_^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_macros)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]   --> src/solution/l049.rs:24:1
[INFO] [stdout]    |
[INFO] [stdout] 24 | / macro_rules! set {
[INFO] [stdout] 25 | |     ($($k:expr),*) => {
[INFO] [stdout] 26 | |         {
[INFO] [stdout] 27 | |             let mut set = HashSet::new();
[INFO] [stdout] ...  |
[INFO] [stdout] 33 | |     };
[INFO] [stdout] 34 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ListNode`
[INFO] [stdout]  --> src/solution/l105.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::{ListNode, TreeNode};
[INFO] [stdout]   |             ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ListNode`
[INFO] [stdout]  --> src/solution/l106.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::{ListNode, TreeNode};
[INFO] [stdout]   |             ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ListNode`, `TreeNode`
[INFO] [stdout]  --> src/solution/l118.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::{ListNode, TreeNode};
[INFO] [stdout]   |             ^^^^^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ListNode`, `TreeNode`
[INFO] [stdout]  --> src/solution/l119.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::{ListNode, TreeNode};
[INFO] [stdout]   |             ^^^^^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ListNode`, `TreeNode`
[INFO] [stdout]  --> src/solution/l120.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::{ListNode, TreeNode};
[INFO] [stdout]   |             ^^^^^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashSet`
[INFO] [stdout]   --> src/solution/l126.rs:64:5
[INFO] [stdout]    |
[INFO] [stdout] 64 | use std::collections::HashSet;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `TreeNode`
[INFO] [stdout]  --> src/solution/l143.rs:1:23
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::{ListNode, TreeNode};
[INFO] [stdout]   |                       ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `TreeNode`
[INFO] [stdout]  --> src/solution/l148.rs:1:23
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::{ListNode, TreeNode};
[INFO] [stdout]   |                       ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `TreeNode`
[INFO] [stdout]  --> src/solution/l203.rs:1:23
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::{ListNode, TreeNode};
[INFO] [stdout]   |                       ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `TreeNode`
[INFO] [stdout]  --> src/solution/l206.rs:1:23
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::{ListNode, TreeNode};
[INFO] [stdout]   |                       ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `TreeNode`
[INFO] [stdout]  --> src/solution/l234.rs:1:23
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::{ListNode, TreeNode};
[INFO] [stdout]   |                       ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ListNode`, `TreeNode`
[INFO] [stdout]  --> src/solution/l238.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::{ListNode, TreeNode};
[INFO] [stdout]   |             ^^^^^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `TreeNode`
[INFO] [stdout]  --> src/solution/l445.rs:1:23
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::{ListNode, TreeNode};
[INFO] [stdout]   |                       ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `TreeNode`
[INFO] [stdout]  --> src/solution/l725.rs:1:23
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::{ListNode, TreeNode};
[INFO] [stdout]   |                       ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cell::RefCell`
[INFO] [stdout]   --> src/solution/l725.rs:84:5
[INFO] [stdout]    |
[INFO] [stdout] 84 | use std::cell::RefCell;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]   --> src/solution/l725.rs:85:5
[INFO] [stdout]    |
[INFO] [stdout] 85 | use std::rc::Rc;
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::ListNode`
[INFO] [stdout]  --> src/solution/util.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::ListNode;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `HashMap`, `HashSet`
[INFO] [stdout]  --> src/solution/util.rs:2:24
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::collections::{HashMap, HashSet};
[INFO] [stdout]   |                        ^^^^^^^  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]  --> src/solution/util.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | / macro_rules! sf {
[INFO] [stdout] 5 | |     ($str:expr) => {
[INFO] [stdout] 6 | |         String::from($str)
[INFO] [stdout] 7 | |     };
[INFO] [stdout] 8 | | }
[INFO] [stdout]   | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]   --> src/solution/util.rs:11:1
[INFO] [stdout]    |
[INFO] [stdout] 11 | / macro_rules! map {
[INFO] [stdout] 12 | |     ($($k:expr => $v:expr),*) => {
[INFO] [stdout] 13 | |         {
[INFO] [stdout] 14 | |             let mut map = HashMap::new();
[INFO] [stdout] ...  |
[INFO] [stdout] 20 | |     };
[INFO] [stdout] 21 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]   --> src/solution/util.rs:24:1
[INFO] [stdout]    |
[INFO] [stdout] 24 | / macro_rules! set {
[INFO] [stdout] 25 | |     ($($k:expr),*) => {
[INFO] [stdout] 26 | |         {
[INFO] [stdout] 27 | |             let mut set = HashSet::new();
[INFO] [stdout] ...  |
[INFO] [stdout] 33 | |     };
[INFO] [stdout] 34 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]   --> src/solution/util.rs:37:1
[INFO] [stdout]    |
[INFO] [stdout] 37 | / macro_rules! list {
[INFO] [stdout] 38 | |     ($($k:expr),*) => {
[INFO] [stdout] 39 | |         {
[INFO] [stdout] 40 | |             let mut set = HashSet::new();
[INFO] [stdout] ...  |
[INFO] [stdout] 46 | |     };
[INFO] [stdout] 47 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cell::RefCell`
[INFO] [stdout]   --> src/solution/l021.rs:54:5
[INFO] [stdout]    |
[INFO] [stdout] 54 | use std::cell::RefCell;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]   --> src/solution/l021.rs:55:5
[INFO] [stdout]    |
[INFO] [stdout] 55 | use std::rc::Rc;
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `HashSet`
[INFO] [stdout]  --> src/solution/l049.rs:2:33
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::collections::{HashMap, HashSet};
[INFO] [stdout]   |                                 ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]   --> src/solution/l049.rs:24:1
[INFO] [stdout]    |
[INFO] [stdout] 24 | / macro_rules! set {
[INFO] [stdout] 25 | |     ($($k:expr),*) => {
[INFO] [stdout] 26 | |         {
[INFO] [stdout] 27 | |             let mut set = HashSet::new();
[INFO] [stdout] ...  |
[INFO] [stdout] 33 | |     };
[INFO] [stdout] 34 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_macros)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ListNode`
[INFO] [stdout]  --> src/solution/l105.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::{ListNode, TreeNode};
[INFO] [stdout]   |             ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ListNode`
[INFO] [stdout]  --> src/solution/l106.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::{ListNode, TreeNode};
[INFO] [stdout]   |             ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ListNode`, `TreeNode`
[INFO] [stdout]  --> src/solution/l118.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::{ListNode, TreeNode};
[INFO] [stdout]   |             ^^^^^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ListNode`, `TreeNode`
[INFO] [stdout]  --> src/solution/l119.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::{ListNode, TreeNode};
[INFO] [stdout]   |             ^^^^^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ListNode`, `TreeNode`
[INFO] [stdout]  --> src/solution/l120.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::{ListNode, TreeNode};
[INFO] [stdout]   |             ^^^^^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashSet`
[INFO] [stdout]   --> src/solution/l126.rs:64:5
[INFO] [stdout]    |
[INFO] [stdout] 64 | use std::collections::HashSet;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]   --> src/solution/l126.rs:80:9
[INFO] [stdout]    |
[INFO] [stdout] 80 |     use super::*;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `TreeNode`
[INFO] [stdout]  --> src/solution/l143.rs:1:23
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::{ListNode, TreeNode};
[INFO] [stdout]   |                       ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `TreeNode`
[INFO] [stdout]  --> src/solution/l148.rs:1:23
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::{ListNode, TreeNode};
[INFO] [stdout]   |                       ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]   --> src/solution/l169.rs:88:9
[INFO] [stdout]    |
[INFO] [stdout] 88 |     use super::*;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `TreeNode`
[INFO] [stdout]  --> src/solution/l203.rs:1:23
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::{ListNode, TreeNode};
[INFO] [stdout]   |                       ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `TreeNode`
[INFO] [stdout]  --> src/solution/l206.rs:1:23
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::{ListNode, TreeNode};
[INFO] [stdout]   |                       ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `TreeNode`
[INFO] [stdout]  --> src/solution/l234.rs:1:23
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::{ListNode, TreeNode};
[INFO] [stdout]   |                       ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ListNode`, `TreeNode`
[INFO] [stdout]  --> src/solution/l238.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::{ListNode, TreeNode};
[INFO] [stdout]   |             ^^^^^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `TreeNode`
[INFO] [stdout]  --> src/solution/l445.rs:1:23
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::{ListNode, TreeNode};
[INFO] [stdout]   |                       ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]   --> src/solution/l566.rs:92:9
[INFO] [stdout]    |
[INFO] [stdout] 92 |     use super::*;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]   --> src/solution/l621.rs:68:9
[INFO] [stdout]    |
[INFO] [stdout] 68 |     use super::*;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `TreeNode`
[INFO] [stdout]  --> src/solution/l725.rs:1:23
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::{ListNode, TreeNode};
[INFO] [stdout]   |                       ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cell::RefCell`
[INFO] [stdout]   --> src/solution/l725.rs:84:5
[INFO] [stdout]    |
[INFO] [stdout] 84 | use std::cell::RefCell;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]   --> src/solution/l725.rs:85:5
[INFO] [stdout]    |
[INFO] [stdout] 85 | use std::rc::Rc;
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::ListNode`
[INFO] [stdout]  --> src/solution/util.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::ListNode;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `HashMap`, `HashSet`
[INFO] [stdout]  --> src/solution/util.rs:2:24
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::collections::{HashMap, HashSet};
[INFO] [stdout]   |                        ^^^^^^^  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]  --> src/solution/util.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | / macro_rules! sf {
[INFO] [stdout] 5 | |     ($str:expr) => {
[INFO] [stdout] 6 | |         String::from($str)
[INFO] [stdout] 7 | |     };
[INFO] [stdout] 8 | | }
[INFO] [stdout]   | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]   --> src/solution/util.rs:11:1
[INFO] [stdout]    |
[INFO] [stdout] 11 | / macro_rules! map {
[INFO] [stdout] 12 | |     ($($k:expr => $v:expr),*) => {
[INFO] [stdout] 13 | |         {
[INFO] [stdout] 14 | |             let mut map = HashMap::new();
[INFO] [stdout] ...  |
[INFO] [stdout] 20 | |     };
[INFO] [stdout] 21 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]   --> src/solution/util.rs:24:1
[INFO] [stdout]    |
[INFO] [stdout] 24 | / macro_rules! set {
[INFO] [stdout] 25 | |     ($($k:expr),*) => {
[INFO] [stdout] 26 | |         {
[INFO] [stdout] 27 | |             let mut set = HashSet::new();
[INFO] [stdout] ...  |
[INFO] [stdout] 33 | |     };
[INFO] [stdout] 34 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]   --> src/solution/util.rs:37:1
[INFO] [stdout]    |
[INFO] [stdout] 37 | / macro_rules! list {
[INFO] [stdout] 38 | |     ($($k:expr),*) => {
[INFO] [stdout] 39 | |         {
[INFO] [stdout] 40 | |             let mut set = HashSet::new();
[INFO] [stdout] ...  |
[INFO] [stdout] 46 | |     };
[INFO] [stdout] 47 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]   --> src/solution/l661.rs:94:9
[INFO] [stdout]    |
[INFO] [stdout] 94 |     use super::*;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `node`
[INFO] [stdout]   --> src/solution/l082.rs:60:24
[INFO] [stdout]    |
[INFO] [stdout] 60 |         while let Some(node) = cur {
[INFO] [stdout]    |                        ^^^^ help: if this is intentional, prefix it with an underscore: `_node`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `head`
[INFO] [stdout]   --> src/solution/l092.rs:49:28
[INFO] [stdout]    |
[INFO] [stdout] 49 |     pub fn reverse_between(head: Option<Box<ListNode>>, m: i32, n: i32) -> Option<Box<ListNode>> {
[INFO] [stdout]    |                            ^^^^ help: if this is intentional, prefix it with an underscore: `_head`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `m`
[INFO] [stdout]   --> src/solution/l092.rs:49:57
[INFO] [stdout]    |
[INFO] [stdout] 49 |     pub fn reverse_between(head: Option<Box<ListNode>>, m: i32, n: i32) -> Option<Box<ListNode>> {
[INFO] [stdout]    |                                                         ^ help: if this is intentional, prefix it with an underscore: `_m`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/solution/l092.rs:49:65
[INFO] [stdout]    |
[INFO] [stdout] 49 |     pub fn reverse_between(head: Option<Box<ListNode>>, m: i32, n: i32) -> Option<Box<ListNode>> {
[INFO] [stdout]    |                                                                 ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `out_price` is never read
[INFO] [stdout]   --> src/solution/l122.rs:70:28
[INFO] [stdout]    |
[INFO] [stdout] 70 |         let (mut in_price, mut out_price) = (-1, -1);
[INFO] [stdout]    |                            ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `out_price` is never read
[INFO] [stdout]   --> src/solution/l122.rs:83:17
[INFO] [stdout]    |
[INFO] [stdout] 83 |                 out_price = -1;
[INFO] [stdout]    |                 ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `begin_word`
[INFO] [stdout]   --> src/solution/l126.rs:67:9
[INFO] [stdout]    |
[INFO] [stdout] 67 |         begin_word: String,
[INFO] [stdout]    |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_begin_word`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `end_word`
[INFO] [stdout]   --> src/solution/l126.rs:68:9
[INFO] [stdout]    |
[INFO] [stdout] 68 |         end_word: String,
[INFO] [stdout]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_end_word`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `word_list`
[INFO] [stdout]   --> src/solution/l126.rs:69:9
[INFO] [stdout]    |
[INFO] [stdout] 69 |         word_list: Vec<String>,
[INFO] [stdout]    |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_word_list`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `idx`
[INFO] [stdout]   --> src/solution/l128.rs:45:14
[INFO] [stdout]    |
[INFO] [stdout] 45 |         for (idx, &num) in nums.iter().enumerate() {
[INFO] [stdout]    |              ^^^ help: if this is intentional, prefix it with an underscore: `_idx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tmp_cnt`
[INFO] [stdout]   --> src/solution/l128.rs:46:17
[INFO] [stdout]    |
[INFO] [stdout] 46 |             let mut tmp_cnt = 1;
[INFO] [stdout]    |                 ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_tmp_cnt`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `res`
[INFO] [stdout]   --> src/solution/l238.rs:97:13
[INFO] [stdout]    |
[INFO] [stdout] 97 |         let mut res = vec![0; nums.len()];
[INFO] [stdout]    |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_res`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `list2` is never read
[INFO] [stdout]   --> src/solution/l445.rs:75:13
[INFO] [stdout]    |
[INFO] [stdout] 75 |         let mut list2 = None;
[INFO] [stdout]    |             ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]    --> src/solution/l445.rs:103:13
[INFO] [stdout]     |
[INFO] [stdout] 103 |         let len = sum.len();
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]   --> src/solution/l457.rs:81:17
[INFO] [stdout]    |
[INFO] [stdout] 81 |             let len = nums.len();
[INFO] [stdout]    |                 ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/solution/l621.rs:50:45
[INFO] [stdout]    |
[INFO] [stdout] 50 |     pub fn least_interval(tasks: Vec<char>, n: i32) -> i32 {
[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]   --> src/solution/l025.rs:80:17
[INFO] [stdout]    |
[INFO] [stdout] 80 |             let mut tail = end.as_mut()?.next.take();
[INFO] [stdout]    |                 ----^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/solution/l025.rs:92:9
[INFO] [stdout]    |
[INFO] [stdout] 92 |         mut head: Option<Box<ListNode>>,
[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/solution/l025.rs:98:17
[INFO] [stdout]    |
[INFO] [stdout] 98 |             let mut next = current_node_inner.next.take();
[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/solution/l049.rs:14:17
[INFO] [stdout]    |
[INFO] [stdout] 14 |             let mut map = HashMap::new();
[INFO] [stdout]    |                 ----^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 45 |         let mut m = map![];
[INFO] [stdout]    |                     ------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/solution/l082.rs:61:17
[INFO] [stdout]    |
[INFO] [stdout] 61 |             let mut cnt = map.entry(cur.as_ref()?.val).or_insert(0);
[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/solution/l128.rs:46:17
[INFO] [stdout]    |
[INFO] [stdout] 46 |             let mut tmp_cnt = 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]   --> src/solution/l128.rs:57:13
[INFO] [stdout]    |
[INFO] [stdout] 57 |         let mut max_bound = num;
[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/solution/l143.rs:84:17
[INFO] [stdout]    |
[INFO] [stdout] 84 |             let mut tmp = first.next.take();
[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/solution/l148.rs:80:13
[INFO] [stdout]    |
[INFO] [stdout] 80 |         let mut left_link = Self::sort_list(small_link?.next.take());
[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/solution/l148.rs:81:13
[INFO] [stdout]    |
[INFO] [stdout] 81 |         let mut right_link = Self::sort_list(big_link?.next.take());
[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/solution/l154.rs:53:14
[INFO] [stdout]    |
[INFO] [stdout] 53 |         let (mut start, mut end) = (0usize, nums.len() - 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]   --> src/solution/l154.rs:53:25
[INFO] [stdout]    |
[INFO] [stdout] 53 |         let (mut start, mut end) = (0usize, nums.len() - 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]   --> src/solution/l169.rs:57:17
[INFO] [stdout]    |
[INFO] [stdout] 57 |             let mut cnt = map.entry(num).or_insert(0);
[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/solution/l238.rs:97:13
[INFO] [stdout]    |
[INFO] [stdout] 97 |         let mut res = vec![0; nums.len()];
[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/solution/l445.rs:66:14
[INFO] [stdout]    |
[INFO] [stdout] 66 |         let (mut l1, mut l2) = (l1, l2);
[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/solution/l445.rs:66:22
[INFO] [stdout]    |
[INFO] [stdout] 66 |         let (mut l1, mut l2) = (l1, l2);
[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/solution/l445.rs:67:14
[INFO] [stdout]    |
[INFO] [stdout] 67 |         let (mut len1, mut len2) = (Self::get_len(l1.as_ref()), Self::get_len(l2.as_ref()));
[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/solution/l445.rs:67:24
[INFO] [stdout]    |
[INFO] [stdout] 67 |         let (mut len1, mut len2) = (Self::get_len(l1.as_ref()), Self::get_len(l2.as_ref()));
[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/solution/l445.rs:104:13
[INFO] [stdout]     |
[INFO] [stdout] 104 |         let mut sum: Vec<i32> = sum.into_iter().rev().collect();
[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/solution/l445.rs:105:13
[INFO] [stdout]     |
[INFO] [stdout] 105 |         let mut add: Vec<i32> = add.into_iter().rev().collect();
[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/solution/l566.rs:73:13
[INFO] [stdout]    |
[INFO] [stdout] 73 |         let mut nums = nums;
[INFO] [stdout]    |             ----^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `to_list`
[INFO] [stdout]   --> src/solution/mod.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 |     fn to_list(vec: Vec<i32>) -> Option<Box<Self>> {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/solution/mod.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout] 36 |     pub fn new(val: i32) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/solution/l021.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Solution {}
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `merge_two_lists`
[INFO] [stdout]   --> src/solution/l021.rs:58:12
[INFO] [stdout]    |
[INFO] [stdout] 58 |     pub fn merge_two_lists(
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/solution/l023.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Solution {}
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `merge_k_lists`
[INFO] [stdout]   --> src/solution/l023.rs:50:12
[INFO] [stdout]    |
[INFO] [stdout] 50 |     pub fn merge_k_lists(lists: Vec<Option<Box<ListNode>>>) -> Option<Box<ListNode>> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `merge_two_lists`
[INFO] [stdout]   --> src/solution/l023.rs:54:12
[INFO] [stdout]    |
[INFO] [stdout] 54 |     pub fn merge_two_lists(
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/solution/l024.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Solution {}
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `swap_pairs`
[INFO] [stdout]   --> src/solution/l024.rs:49:12
[INFO] [stdout]    |
[INFO] [stdout] 49 |     pub fn swap_pairs(head: Option<Box<ListNode>>) -> Option<Box<ListNode>> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/solution/l025.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Solution {}
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `reverse_k_group`
[INFO] [stdout]   --> src/solution/l025.rs:64:12
[INFO] [stdout]    |
[INFO] [stdout] 64 |     pub fn reverse_k_group(head: Option<Box<ListNode>>, k: i32) -> Option<Box<ListNode>> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `reverse`
[INFO] [stdout]   --> src/solution/l025.rs:91:8
[INFO] [stdout]    |
[INFO] [stdout] 91 |     fn reverse(
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/solution/l061.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Solution {}
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `rotate_right`
[INFO] [stdout]   --> src/solution/l061.rs:60:12
[INFO] [stdout]    |
[INFO] [stdout] 60 |     pub fn rotate_right(head: Option<Box<ListNode>>, k: i32) -> Option<Box<ListNode>> {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/solution/l082.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Solution {}
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `delete_duplicates`
[INFO] [stdout]   --> src/solution/l082.rs:53:12
[INFO] [stdout]    |
[INFO] [stdout] 53 |     pub fn delete_duplicates(head: Option<Box<ListNode>>) -> Option<Box<ListNode>> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/solution/l083.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Solution {}
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `delete_duplicates`
[INFO] [stdout]   --> src/solution/l083.rs:52:12
[INFO] [stdout]    |
[INFO] [stdout] 52 |     pub fn delete_duplicates(head: Option<Box<ListNode>>) -> Option<Box<ListNode>> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/solution/l086.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Solution {}
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `partition`
[INFO] [stdout]   --> src/solution/l086.rs:49:12
[INFO] [stdout]    |
[INFO] [stdout] 49 |     pub fn partition(head: Option<Box<ListNode>>, x: i32) -> Option<Box<ListNode>> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/solution/l092.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Solution {}
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `reverse_between`
[INFO] [stdout]   --> src/solution/l092.rs:49:12
[INFO] [stdout]    |
[INFO] [stdout] 49 |     pub fn reverse_between(head: Option<Box<ListNode>>, m: i32, n: i32) -> Option<Box<ListNode>> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/solution/l105.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Solution {}
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `build_tree`
[INFO] [stdout]   --> src/solution/l105.rs:60:12
[INFO] [stdout]    |
[INFO] [stdout] 60 |     pub fn build_tree(preorder: Vec<i32>, inorder: Vec<i32>) -> Option<Rc<RefCell<TreeNode>>> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `build_tree_v2`
[INFO] [stdout]   --> src/solution/l105.rs:67:12
[INFO] [stdout]    |
[INFO] [stdout] 67 |     pub fn build_tree_v2(preorder: &[i32], inorder: &[i32]) -> Option<Rc<RefCell<TreeNode>>> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/solution/l106.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Solution {}
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `build_tree`
[INFO] [stdout]   --> src/solution/l106.rs:62:12
[INFO] [stdout]    |
[INFO] [stdout] 62 |     pub fn build_tree(inorder: Vec<i32>, postorder: Vec<i32>) -> Option<Rc<RefCell<TreeNode>>> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `build_tree_v2`
[INFO] [stdout]   --> src/solution/l106.rs:70:12
[INFO] [stdout]    |
[INFO] [stdout] 70 |     pub fn build_tree_v2(inorder: &[i32], postorder: &[i32]) -> Option<Rc<RefCell<TreeNode>>> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/solution/l109.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Solution {}
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `sorted_list_to_bst`
[INFO] [stdout]   --> src/solution/l109.rs:76:12
[INFO] [stdout]    |
[INFO] [stdout] 76 |     pub fn sorted_list_to_bst(head: Option<Box<ListNode>>) -> Option<Rc<RefCell<TreeNode>>> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `vec_to_bst`
[INFO] [stdout]   --> src/solution/l109.rs:89:12
[INFO] [stdout]    |
[INFO] [stdout] 89 |     pub fn vec_to_bst(vec: &[i32]) -> Option<Rc<RefCell<TreeNode>>> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/solution/l118.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Solution {}
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `generate`
[INFO] [stdout]   --> src/solution/l118.rs:41:12
[INFO] [stdout]    |
[INFO] [stdout] 41 |     pub fn generate(num_rows: i32) -> Vec<Vec<i32>> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/solution/l119.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Solution {}
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_row`
[INFO] [stdout]   --> src/solution/l119.rs:39:12
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub fn get_row(row_index: i32) -> Vec<i32> {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/solution/l120.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Solution {}
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `minimum_total`
[INFO] [stdout]   --> src/solution/l120.rs:47:12
[INFO] [stdout]    |
[INFO] [stdout] 47 |     pub fn minimum_total(triangle: Vec<Vec<i32>>) -> i32 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/solution/l121.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Solution {}
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `max_profit`
[INFO] [stdout]   --> src/solution/l121.rs:45:12
[INFO] [stdout]    |
[INFO] [stdout] 45 |     pub fn max_profit(prices: Vec<i32>) -> i32 {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/solution/l122.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Solution {}
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `max_profit`
[INFO] [stdout]   --> src/solution/l122.rs:63:12
[INFO] [stdout]    |
[INFO] [stdout] 63 |     pub fn max_profit(prices: Vec<i32>) -> i32 {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/solution/l123.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Solution {}
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `max_profit`
[INFO] [stdout]   --> src/solution/l123.rs:51:12
[INFO] [stdout]    |
[INFO] [stdout] 51 |     pub fn max_profit(prices: Vec<i32>) -> i32 {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/solution/l126.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Solution {}
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `find_ladders`
[INFO] [stdout]   --> src/solution/l126.rs:66:12
[INFO] [stdout]    |
[INFO] [stdout] 66 |     pub fn find_ladders(
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/solution/l128.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Solution {}
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `longest_consecutive`
[INFO] [stdout]   --> src/solution/l128.rs:33:12
[INFO] [stdout]    |
[INFO] [stdout] 33 |     pub fn longest_consecutive(nums: Vec<i32>) -> i32 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_longest`
[INFO] [stdout]   --> src/solution/l128.rs:53:12
[INFO] [stdout]    |
[INFO] [stdout] 53 |     pub fn get_longest(set: &HashSet<i32>, used: &mut HashMap<i32, i32>, num: i32) -> i32 {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/solution/l143.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Solution {}
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `reorder_list`
[INFO] [stdout]   --> src/solution/l143.rs:52:12
[INFO] [stdout]    |
[INFO] [stdout] 52 |     pub fn reorder_list(head: &mut Option<Box<ListNode>>) {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `reverse_list`
[INFO] [stdout]   --> src/solution/l143.rs:93:12
[INFO] [stdout]    |
[INFO] [stdout] 93 |     pub fn reverse_list(head: Option<Box<ListNode>>) -> Option<Box<ListNode>> {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/solution/l148.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Solution {}
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `sort_list`
[INFO] [stdout]   --> src/solution/l148.rs:52:12
[INFO] [stdout]    |
[INFO] [stdout] 52 |     pub fn sort_list(head: Option<Box<ListNode>>) -> Option<Box<ListNode>> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/solution/l152.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Solution {}
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `max_product`
[INFO] [stdout]   --> src/solution/l152.rs:39:12
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub fn max_product(nums: Vec<i32>) -> i32 {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/solution/l153.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Solution {}
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `find_min`
[INFO] [stdout]   --> src/solution/l153.rs:40:12
[INFO] [stdout]    |
[INFO] [stdout] 40 |     pub fn find_min(nums: Vec<i32>) -> i32 {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/solution/l154.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Solution {}
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `find_min`
[INFO] [stdout]   --> src/solution/l154.rs:47:12
[INFO] [stdout]    |
[INFO] [stdout] 47 |     pub fn find_min(nums: Vec<i32>) -> i32 {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `find_min_v2`
[INFO] [stdout]   --> src/solution/l154.rs:51:12
[INFO] [stdout]    |
[INFO] [stdout] 51 |     pub fn find_min_v2(nums: &[i32]) -> i32 {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/solution/l162.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Solution {}
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `find_peak_element`
[INFO] [stdout]   --> src/solution/l162.rs:48:12
[INFO] [stdout]    |
[INFO] [stdout] 48 |     pub fn find_peak_element(nums: Vec<i32>) -> i32 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/solution/l167.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Solution {}
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `two_sum`
[INFO] [stdout]   --> src/solution/l167.rs:39:12
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub fn two_sum(numbers: Vec<i32>, target: i32) -> Vec<i32> {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/solution/l169.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Solution {}
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `majority_element`
[INFO] [stdout]   --> src/solution/l169.rs:39:12
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub fn majority_element(nums: Vec<i32>) -> i32 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `majority_element_v1`
[INFO] [stdout]   --> src/solution/l169.rs:45:12
[INFO] [stdout]    |
[INFO] [stdout] 45 |     pub fn majority_element_v1(nums: Vec<i32>) -> i32 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `majority_element_v2`
[INFO] [stdout]   --> src/solution/l169.rs:52:12
[INFO] [stdout]    |
[INFO] [stdout] 52 |     pub fn majority_element_v2(nums: Vec<i32>) -> i32 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `majority_element_v3`
[INFO] [stdout]   --> src/solution/l169.rs:66:12
[INFO] [stdout]    |
[INFO] [stdout] 66 |     pub fn majority_element_v3(nums: Vec<i32>) -> i32 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/solution/l189.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Solution {}
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `rotate`
[INFO] [stdout]   --> src/solution/l189.rs:49:12
[INFO] [stdout]    |
[INFO] [stdout] 49 |     pub fn rotate(nums: &mut Vec<i32>, k: i32) {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/solution/l203.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Solution {}
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `remove_elements`
[INFO] [stdout]   --> src/solution/l203.rs:47:12
[INFO] [stdout]    |
[INFO] [stdout] 47 |     pub fn remove_elements(head: Option<Box<ListNode>>, val: i32) -> Option<Box<ListNode>> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/solution/l206.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Solution {}
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `reverse_list`
[INFO] [stdout]   --> src/solution/l206.rs:49:12
[INFO] [stdout]    |
[INFO] [stdout] 49 |     pub fn reverse_list(head: Option<Box<ListNode>>) -> Option<Box<ListNode>> {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/solution/l209.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Solution {}
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `min_sub_array_len`
[INFO] [stdout]   --> src/solution/l209.rs:42:12
[INFO] [stdout]    |
[INFO] [stdout] 42 |     pub fn min_sub_array_len(s: i32, nums: Vec<i32>) -> i32 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/solution/l216.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Solution {}
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `combination_sum3`
[INFO] [stdout]   --> src/solution/l216.rs:43:12
[INFO] [stdout]    |
[INFO] [stdout] 43 |     pub fn combination_sum3(k: i32, n: i32) -> Vec<Vec<i32>> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `dfs`
[INFO] [stdout]   --> src/solution/l216.rs:51:8
[INFO] [stdout]    |
[INFO] [stdout] 51 |     fn dfs(k: i32, n: i32, now_cnt: i32, res: &mut Vec<Vec<i32>>, tmp: &mut Vec<i32>) {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/solution/l217.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Solution {}
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `contains_duplicate`
[INFO] [stdout]   --> src/solution/l217.rs:43:12
[INFO] [stdout]    |
[INFO] [stdout] 43 |     pub fn contains_duplicate(nums: Vec<i32>) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/solution/l219.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Solution {}
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `contains_nearby_duplicate`
[INFO] [stdout]   --> src/solution/l219.rs:43:12
[INFO] [stdout]    |
[INFO] [stdout] 43 |     pub fn contains_nearby_duplicate(nums: Vec<i32>, k: i32) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/solution/l228.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Solution {}
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `summary_ranges`
[INFO] [stdout]   --> src/solution/l228.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout] 36 |     pub fn summary_ranges(nums: Vec<i32>) -> Vec<String> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/solution/l229.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Solution {}
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `majority_element`
[INFO] [stdout]   --> src/solution/l229.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout] 36 |     pub fn majority_element(nums: Vec<i32>) -> Vec<i32> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/solution/l234.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Solution {}
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_palindrome`
[INFO] [stdout]   --> src/solution/l234.rs:55:12
[INFO] [stdout]    |
[INFO] [stdout] 55 |     pub fn is_palindrome(head: Option<Box<ListNode>>) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `reverse_list`
[INFO] [stdout]   --> src/solution/l234.rs:63:12
[INFO] [stdout]    |
[INFO] [stdout] 63 |     pub fn reverse_list(head: Option<Box<ListNode>>) -> Option<Box<ListNode>> {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/solution/l238.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Solution {}
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `product_except_self`
[INFO] [stdout]   --> src/solution/l238.rs:42:12
[INFO] [stdout]    |
[INFO] [stdout] 42 |     pub fn product_except_self(nums: Vec<i32>) -> Vec<i32> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `product_except_self_v2`
[INFO] [stdout]   --> src/solution/l238.rs:48:12
[INFO] [stdout]    |
[INFO] [stdout] 48 |     pub fn product_except_self_v2(nums: Vec<i32>) -> Vec<i32> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `product_except_self_v1`
[INFO] [stdout]   --> src/solution/l238.rs:69:12
[INFO] [stdout]    |
[INFO] [stdout] 69 |     pub fn product_except_self_v1(nums: Vec<i32>) -> Vec<i32> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/solution/l268.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Solution {}
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `missing_number`
[INFO] [stdout]   --> src/solution/l268.rs:43:12
[INFO] [stdout]    |
[INFO] [stdout] 43 |     pub fn missing_number(nums: Vec<i32>) -> i32 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/solution/l283.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Solution {}
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `move_zeroes`
[INFO] [stdout]   --> src/solution/l283.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout] 36 |     pub fn move_zeroes(nums: &mut Vec<i32>) {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/solution/l287.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Solution {}
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `find_duplicate`
[INFO] [stdout]   --> src/solution/l287.rs:46:12
[INFO] [stdout]    |
[INFO] [stdout] 46 |     pub fn find_duplicate(nums: Vec<i32>) -> i32 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `find_duplicatev_mid_find`
[INFO] [stdout]   --> src/solution/l287.rs:53:8
[INFO] [stdout]    |
[INFO] [stdout] 53 |     fn find_duplicatev_mid_find(nums: Vec<i32>) -> i32 {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/solution/l289.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Solution {}
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `game_of_life`
[INFO] [stdout]   --> src/solution/l289.rs:65:12
[INFO] [stdout]    |
[INFO] [stdout] 65 |     pub fn game_of_life(board: &mut Vec<Vec<i32>>) {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/solution/l380.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Solution {}
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `RandomizedSet`
[INFO] [stdout]   --> src/solution/l380.rs:60:8
[INFO] [stdout]    |
[INFO] [stdout] 60 | struct RandomizedSet {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/solution/l380.rs:70:8
[INFO] [stdout]    |
[INFO] [stdout] 70 |     fn new() -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `insert`
[INFO] [stdout]   --> src/solution/l380.rs:77:8
[INFO] [stdout]    |
[INFO] [stdout] 77 |     fn insert(&self, val: i32) -> bool {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `remove`
[INFO] [stdout]   --> src/solution/l380.rs:87:8
[INFO] [stdout]    |
[INFO] [stdout] 87 |     fn remove(&self, val: i32) -> bool {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_random`
[INFO] [stdout]   --> src/solution/l380.rs:97:8
[INFO] [stdout]    |
[INFO] [stdout] 97 |     fn get_random(&self) -> i32 {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/solution/l414.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Solution {}
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `third_max`
[INFO] [stdout]   --> src/solution/l414.rs:55:12
[INFO] [stdout]    |
[INFO] [stdout] 55 |     pub fn third_max(nums: Vec<i32>) -> i32 {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/solution/l442.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Solution {}
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `find_duplicates`
[INFO] [stdout]   --> src/solution/l442.rs:38:12
[INFO] [stdout]    |
[INFO] [stdout] 38 |     pub fn find_duplicates(nums: Vec<i32>) -> Vec<i32> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/solution/l445.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Solution {}
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_two_numbers`
[INFO] [stdout]   --> src/solution/l445.rs:57:12
[INFO] [stdout]    |
[INFO] [stdout] 57 |     pub fn add_two_numbers(
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_len`
[INFO] [stdout]    --> src/solution/l445.rs:159:12
[INFO] [stdout]     |
[INFO] [stdout] 159 |     pub fn get_len(head: Option<&Box<ListNode>>) -> i32 {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/solution/l448.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Solution {}
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `find_disappeared_numbers`
[INFO] [stdout]   --> src/solution/l448.rs:38:12
[INFO] [stdout]    |
[INFO] [stdout] 38 |     pub fn find_disappeared_numbers(nums: Vec<i32>) -> Vec<i32> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/solution/l457.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Solution {}
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `circular_array_loop`
[INFO] [stdout]   --> src/solution/l457.rs:66:12
[INFO] [stdout]    |
[INFO] [stdout] 66 |     pub fn circular_array_loop(nums: Vec<i32>) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `check`
[INFO] [stdout]    --> src/solution/l457.rs:134:8
[INFO] [stdout]     |
[INFO] [stdout] 134 |     fn check(nums: &Vec<i32>, idx: usize, dir: bool) -> bool {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_next`
[INFO] [stdout]    --> src/solution/l457.rs:141:8
[INFO] [stdout]     |
[INFO] [stdout] 141 |     fn get_next(nums: &Vec<i32>, now_idx: usize) -> usize {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/solution/l485.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Solution {}
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `find_max_consecutive_ones`
[INFO] [stdout]   --> src/solution/l485.rs:39:12
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub fn find_max_consecutive_ones(nums: Vec<i32>) -> i32 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/solution/l495.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Solution {}
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `find_poisoned_duration`
[INFO] [stdout]   --> src/solution/l495.rs:58:12
[INFO] [stdout]    |
[INFO] [stdout] 58 |     pub fn find_poisoned_duration(time_series: Vec<i32>, duration: i32) -> i32 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/solution/l532.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Solution {}
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `find_pairs`
[INFO] [stdout]   --> src/solution/l532.rs:59:12
[INFO] [stdout]    |
[INFO] [stdout] 59 |     pub fn find_pairs(nums: Vec<i32>, k: i32) -> i32 {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/solution/l560.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Solution {}
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `subarray_sum`
[INFO] [stdout]   --> src/solution/l560.rs:39:12
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub fn subarray_sum(nums: Vec<i32>, k: i32) -> i32 {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `subarray_sum_v2`
[INFO] [stdout]   --> src/solution/l560.rs:46:12
[INFO] [stdout]    |
[INFO] [stdout] 46 |     pub fn subarray_sum_v2(nums: Vec<i32>, k: i32) -> i32 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `subarray_sum_v1`
[INFO] [stdout]   --> src/solution/l560.rs:63:12
[INFO] [stdout]    |
[INFO] [stdout] 63 |     pub fn subarray_sum_v1(nums: Vec<i32>, k: i32) -> i32 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/solution/l561.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Solution {}
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `array_pair_sum`
[INFO] [stdout]   --> src/solution/l561.rs:41:12
[INFO] [stdout]    |
[INFO] [stdout] 41 |     pub fn array_pair_sum(nums: Vec<i32>) -> i32 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/solution/l565.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Solution {}
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `array_nesting`
[INFO] [stdout]   --> src/solution/l565.rs:53:12
[INFO] [stdout]    |
[INFO] [stdout] 53 |     pub fn array_nesting(nums: Vec<i32>) -> i32 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/solution/l566.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Solution {}
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `matrix_reshape`
[INFO] [stdout]   --> src/solution/l566.rs:66:12
[INFO] [stdout]    |
[INFO] [stdout] 66 |     pub fn matrix_reshape(nums: Vec<Vec<i32>>, r: i32, c: i32) -> Vec<Vec<i32>> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/solution/l581.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Solution {}
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `find_unsorted_subarray`
[INFO] [stdout]   --> src/solution/l581.rs:41:12
[INFO] [stdout]    |
[INFO] [stdout] 41 |     pub fn find_unsorted_subarray(nums: Vec<i32>) -> i32 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/solution/l605.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Solution {}
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `can_place_flowers`
[INFO] [stdout]   --> src/solution/l605.rs:49:12
[INFO] [stdout]    |
[INFO] [stdout] 49 |     pub fn can_place_flowers(flowerbed: Vec<i32>, n: i32) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/solution/l611.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Solution {}
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `triangle_number`
[INFO] [stdout]   --> src/solution/l611.rs:43:12
[INFO] [stdout]    |
[INFO] [stdout] 43 |     pub fn triangle_number(nums: Vec<i32>) -> i32 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/solution/l621.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Solution {}
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `least_interval`
[INFO] [stdout]   --> src/solution/l621.rs:50:12
[INFO] [stdout]    |
[INFO] [stdout] 50 |     pub fn least_interval(tasks: Vec<char>, n: i32) -> i32 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/solution/l628.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Solution {}
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `maximum_product`
[INFO] [stdout]   --> src/solution/l628.rs:46:12
[INFO] [stdout]    |
[INFO] [stdout] 46 |     pub fn maximum_product(nums: Vec<i32>) -> i32 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/solution/l725.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Solution {}
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `split_list_to_parts`
[INFO] [stdout]   --> src/solution/l725.rs:87:12
[INFO] [stdout]    |
[INFO] [stdout] 87 |     pub fn split_list_to_parts(root: Option<Box<ListNode>>, k: i32) -> Vec<Option<Box<ListNode>>> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_len`
[INFO] [stdout]    --> src/solution/l725.rs:128:12
[INFO] [stdout]     |
[INFO] [stdout] 128 |     pub fn get_len(head: Option<&Box<ListNode>>) -> i32 {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/solution/l766.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Solution {}
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_toeplitz_matrix`
[INFO] [stdout]   --> src/solution/l766.rs:68:12
[INFO] [stdout]    |
[INFO] [stdout] 68 |     pub fn is_toeplitz_matrix(matrix: Vec<Vec<i32>>) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `check`
[INFO] [stdout]   --> src/solution/l766.rs:90:12
[INFO] [stdout]    |
[INFO] [stdout] 90 |     pub fn check((x, y, max_x, max_y): (i32, i32, usize, usize)) -> bool {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_right`
[INFO] [stdout]   --> src/solution/l766.rs:95:12
[INFO] [stdout]    |
[INFO] [stdout] 95 |     pub fn is_right(
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/solution/l643.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Solution {}
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `find_max_average`
[INFO] [stdout]   --> src/solution/l643.rs:40:12
[INFO] [stdout]    |
[INFO] [stdout] 40 |     pub fn find_max_average(nums: Vec<i32>, k: i32) -> f64 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/solution/l661.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Solution {}
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `image_smoother`
[INFO] [stdout]   --> src/solution/l661.rs:50:12
[INFO] [stdout]    |
[INFO] [stdout] 50 |     pub fn image_smoother(m: Vec<Vec<i32>>) -> Vec<Vec<i32>> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `check`
[INFO] [stdout]   --> src/solution/l661.rs:86:8
[INFO] [stdout]    |
[INFO] [stdout] 86 |     fn check(x: i32, y: i32, x_len: i32, y_len: i32) -> bool {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/solution/l665.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Solution {}
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `check_possibility`
[INFO] [stdout]   --> src/solution/l665.rs:52:12
[INFO] [stdout]    |
[INFO] [stdout] 52 |     pub fn check_possibility(nums: Vec<i32>) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `check`
[INFO] [stdout]   --> src/solution/l665.rs:83:12
[INFO] [stdout]    |
[INFO] [stdout] 83 |     pub fn check(nums: &Vec<i32>) -> bool {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 228 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `node`
[INFO] [stdout]   --> src/solution/l082.rs:60:24
[INFO] [stdout]    |
[INFO] [stdout] 60 |         while let Some(node) = cur {
[INFO] [stdout]    |                        ^^^^ help: if this is intentional, prefix it with an underscore: `_node`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `head`
[INFO] [stdout]   --> src/solution/l092.rs:49:28
[INFO] [stdout]    |
[INFO] [stdout] 49 |     pub fn reverse_between(head: Option<Box<ListNode>>, m: i32, n: i32) -> Option<Box<ListNode>> {
[INFO] [stdout]    |                            ^^^^ help: if this is intentional, prefix it with an underscore: `_head`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `m`
[INFO] [stdout]   --> src/solution/l092.rs:49:57
[INFO] [stdout]    |
[INFO] [stdout] 49 |     pub fn reverse_between(head: Option<Box<ListNode>>, m: i32, n: i32) -> Option<Box<ListNode>> {
[INFO] [stdout]    |                                                         ^ help: if this is intentional, prefix it with an underscore: `_m`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/solution/l092.rs:49:65
[INFO] [stdout]    |
[INFO] [stdout] 49 |     pub fn reverse_between(head: Option<Box<ListNode>>, m: i32, n: i32) -> Option<Box<ListNode>> {
[INFO] [stdout]    |                                                                 ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `out_price` is never read
[INFO] [stdout]   --> src/solution/l122.rs:70:28
[INFO] [stdout]    |
[INFO] [stdout] 70 |         let (mut in_price, mut out_price) = (-1, -1);
[INFO] [stdout]    |                            ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `out_price` is never read
[INFO] [stdout]   --> src/solution/l122.rs:83:17
[INFO] [stdout]    |
[INFO] [stdout] 83 |                 out_price = -1;
[INFO] [stdout]    |                 ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `begin_word`
[INFO] [stdout]   --> src/solution/l126.rs:67:9
[INFO] [stdout]    |
[INFO] [stdout] 67 |         begin_word: String,
[INFO] [stdout]    |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_begin_word`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `end_word`
[INFO] [stdout]   --> src/solution/l126.rs:68:9
[INFO] [stdout]    |
[INFO] [stdout] 68 |         end_word: String,
[INFO] [stdout]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_end_word`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `word_list`
[INFO] [stdout]   --> src/solution/l126.rs:69:9
[INFO] [stdout]    |
[INFO] [stdout] 69 |         word_list: Vec<String>,
[INFO] [stdout]    |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_word_list`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `idx`
[INFO] [stdout]   --> src/solution/l128.rs:45:14
[INFO] [stdout]    |
[INFO] [stdout] 45 |         for (idx, &num) in nums.iter().enumerate() {
[INFO] [stdout]    |              ^^^ help: if this is intentional, prefix it with an underscore: `_idx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tmp_cnt`
[INFO] [stdout]   --> src/solution/l128.rs:46:17
[INFO] [stdout]    |
[INFO] [stdout] 46 |             let mut tmp_cnt = 1;
[INFO] [stdout]    |                 ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_tmp_cnt`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `res`
[INFO] [stdout]   --> src/solution/l238.rs:97:13
[INFO] [stdout]    |
[INFO] [stdout] 97 |         let mut res = vec![0; nums.len()];
[INFO] [stdout]    |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_res`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `list2` is never read
[INFO] [stdout]   --> src/solution/l445.rs:75:13
[INFO] [stdout]    |
[INFO] [stdout] 75 |         let mut list2 = None;
[INFO] [stdout]    |             ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]    --> src/solution/l445.rs:103:13
[INFO] [stdout]     |
[INFO] [stdout] 103 |         let len = sum.len();
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]   --> src/solution/l457.rs:81:17
[INFO] [stdout]    |
[INFO] [stdout] 81 |             let len = nums.len();
[INFO] [stdout]    |                 ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/solution/l621.rs:50:45
[INFO] [stdout]    |
[INFO] [stdout] 50 |     pub fn least_interval(tasks: Vec<char>, n: i32) -> i32 {
[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]   --> src/solution/l025.rs:80:17
[INFO] [stdout]    |
[INFO] [stdout] 80 |             let mut tail = end.as_mut()?.next.take();
[INFO] [stdout]    |                 ----^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/solution/l025.rs:92:9
[INFO] [stdout]    |
[INFO] [stdout] 92 |         mut head: Option<Box<ListNode>>,
[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/solution/l025.rs:98:17
[INFO] [stdout]    |
[INFO] [stdout] 98 |             let mut next = current_node_inner.next.take();
[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/solution/l049.rs:14:17
[INFO] [stdout]    |
[INFO] [stdout] 14 |             let mut map = HashMap::new();
[INFO] [stdout]    |                 ----^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 45 |         let mut m = map![];
[INFO] [stdout]    |                     ------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/solution/l082.rs:61:17
[INFO] [stdout]    |
[INFO] [stdout] 61 |             let mut cnt = map.entry(cur.as_ref()?.val).or_insert(0);
[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/solution/l128.rs:46:17
[INFO] [stdout]    |
[INFO] [stdout] 46 |             let mut tmp_cnt = 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]   --> src/solution/l128.rs:57:13
[INFO] [stdout]    |
[INFO] [stdout] 57 |         let mut max_bound = num;
[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/solution/l143.rs:84:17
[INFO] [stdout]    |
[INFO] [stdout] 84 |             let mut tmp = first.next.take();
[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/solution/l148.rs:80:13
[INFO] [stdout]    |
[INFO] [stdout] 80 |         let mut left_link = Self::sort_list(small_link?.next.take());
[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/solution/l148.rs:81:13
[INFO] [stdout]    |
[INFO] [stdout] 81 |         let mut right_link = Self::sort_list(big_link?.next.take());
[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/solution/l154.rs:53:14
[INFO] [stdout]    |
[INFO] [stdout] 53 |         let (mut start, mut end) = (0usize, nums.len() - 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]   --> src/solution/l154.rs:53:25
[INFO] [stdout]    |
[INFO] [stdout] 53 |         let (mut start, mut end) = (0usize, nums.len() - 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]   --> src/solution/l169.rs:57:17
[INFO] [stdout]    |
[INFO] [stdout] 57 |             let mut cnt = map.entry(num).or_insert(0);
[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/solution/l238.rs:97:13
[INFO] [stdout]    |
[INFO] [stdout] 97 |         let mut res = vec![0; nums.len()];
[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/solution/l380.rs:122:13
[INFO] [stdout]     |
[INFO] [stdout] 122 |         let mut s = RandomizedSet::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/solution/l445.rs:66:14
[INFO] [stdout]    |
[INFO] [stdout] 66 |         let (mut l1, mut l2) = (l1, l2);
[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/solution/l445.rs:66:22
[INFO] [stdout]    |
[INFO] [stdout] 66 |         let (mut l1, mut l2) = (l1, l2);
[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/solution/l445.rs:67:14
[INFO] [stdout]    |
[INFO] [stdout] 67 |         let (mut len1, mut len2) = (Self::get_len(l1.as_ref()), Self::get_len(l2.as_ref()));
[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/solution/l445.rs:67:24
[INFO] [stdout]    |
[INFO] [stdout] 67 |         let (mut len1, mut len2) = (Self::get_len(l1.as_ref()), Self::get_len(l2.as_ref()));
[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/solution/l445.rs:104:13
[INFO] [stdout]     |
[INFO] [stdout] 104 |         let mut sum: Vec<i32> = sum.into_iter().rev().collect();
[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/solution/l445.rs:105:13
[INFO] [stdout]     |
[INFO] [stdout] 105 |         let mut add: Vec<i32> = add.into_iter().rev().collect();
[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/solution/l566.rs:73:13
[INFO] [stdout]    |
[INFO] [stdout] 73 |         let mut nums = nums;
[INFO] [stdout]    |             ----^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/solution/mod.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout] 36 |     pub fn new(val: i32) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/solution/l126.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Solution {}
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `find_ladders`
[INFO] [stdout]   --> src/solution/l126.rs:66:12
[INFO] [stdout]    |
[INFO] [stdout] 66 |     pub fn find_ladders(
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/solution/l169.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Solution {}
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `majority_element`
[INFO] [stdout]   --> src/solution/l169.rs:39:12
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub fn majority_element(nums: Vec<i32>) -> i32 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `majority_element_v1`
[INFO] [stdout]   --> src/solution/l169.rs:45:12
[INFO] [stdout]    |
[INFO] [stdout] 45 |     pub fn majority_element_v1(nums: Vec<i32>) -> i32 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `majority_element_v2`
[INFO] [stdout]   --> src/solution/l169.rs:52:12
[INFO] [stdout]    |
[INFO] [stdout] 52 |     pub fn majority_element_v2(nums: Vec<i32>) -> i32 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `majority_element_v3`
[INFO] [stdout]   --> src/solution/l169.rs:66:12
[INFO] [stdout]    |
[INFO] [stdout] 66 |     pub fn majority_element_v3(nums: Vec<i32>) -> i32 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `product_except_self_v1`
[INFO] [stdout]   --> src/solution/l238.rs:69:12
[INFO] [stdout]    |
[INFO] [stdout] 69 |     pub fn product_except_self_v1(nums: Vec<i32>) -> Vec<i32> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/solution/l380.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Solution {}
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `subarray_sum_v1`
[INFO] [stdout]   --> src/solution/l560.rs:63:12
[INFO] [stdout]    |
[INFO] [stdout] 63 |     pub fn subarray_sum_v1(nums: Vec<i32>, k: i32) -> i32 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/solution/l566.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Solution {}
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `matrix_reshape`
[INFO] [stdout]   --> src/solution/l566.rs:66:12
[INFO] [stdout]    |
[INFO] [stdout] 66 |     pub fn matrix_reshape(nums: Vec<Vec<i32>>, r: i32, c: i32) -> Vec<Vec<i32>> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/solution/l621.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Solution {}
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `least_interval`
[INFO] [stdout]   --> src/solution/l621.rs:50:12
[INFO] [stdout]    |
[INFO] [stdout] 50 |     pub fn least_interval(tasks: Vec<char>, n: i32) -> i32 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/solution/l661.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Solution {}
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `image_smoother`
[INFO] [stdout]   --> src/solution/l661.rs:50:12
[INFO] [stdout]    |
[INFO] [stdout] 50 |     pub fn image_smoother(m: Vec<Vec<i32>>) -> Vec<Vec<i32>> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `check`
[INFO] [stdout]   --> src/solution/l661.rs:86:8
[INFO] [stdout]    |
[INFO] [stdout] 86 |     fn check(x: i32, y: i32, x_len: i32, y_len: i32) -> bool {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 87 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.56s
[INFO] running `Command { std: "docker" "inspect" "d55fbbc24c827d0106b818f4e8d33946da002441111fd470d3e422eefb7a5446", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d55fbbc24c827d0106b818f4e8d33946da002441111fd470d3e422eefb7a5446", kill_on_drop: false }`
[INFO] [stdout] d55fbbc24c827d0106b818f4e8d33946da002441111fd470d3e422eefb7a5446