[INFO] cloning repository https://github.com/U-yammer/rust-leetCode
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/U-yammer/rust-leetCode" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FU-yammer%2Frust-leetCode", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FU-yammer%2Frust-leetCode'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e2c3c8ec31ba4593dca8f7db071ca7d2b65b68e5
[INFO] checking U-yammer/rust-leetCode/e2c3c8ec31ba4593dca8f7db071ca7d2b65b68e5 against master#f609b7e0586f81fefb3523e3e17adf779ac416be for pr-129466-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FU-yammer%2Frust-leetCode" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/U-yammer/rust-leetCode on toolchain f609b7e0586f81fefb3523e3e17adf779ac416be
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/U-yammer/rust-leetCode
[INFO] finished tweaking git repo https://github.com/U-yammer/rust-leetCode
[INFO] tweaked toml for git repo https://github.com/U-yammer/rust-leetCode written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/U-yammer/rust-leetCode already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5b3e6afa781f78d93a32e47bca07fb80cbed85c046631d56ae5ba892dfcfedea
[INFO] running `Command { std: "docker" "start" "-a" "5b3e6afa781f78d93a32e47bca07fb80cbed85c046631d56ae5ba892dfcfedea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5b3e6afa781f78d93a32e47bca07fb80cbed85c046631d56ae5ba892dfcfedea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b3e6afa781f78d93a32e47bca07fb80cbed85c046631d56ae5ba892dfcfedea", kill_on_drop: false }`
[INFO] [stdout] 5b3e6afa781f78d93a32e47bca07fb80cbed85c046631d56ae5ba892dfcfedea
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 04d72b0730943b72cf41a925982b98fdf391c618f69c1d1584fd170e23df8e72
[INFO] running `Command { std: "docker" "start" "-a" "04d72b0730943b72cf41a925982b98fdf391c618f69c1d1584fd170e23df8e72", kill_on_drop: false }`
[INFO] [stderr]     Checking leetCode v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: type `inter` should have an upper camel case name
[INFO] [stdout]  --> src/inter_mut.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct inter {
[INFO] [stdout]   |            ^^^^^ help: convert the identifier to upper camel case (notice the capitalization): `Inter`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::error::Error`
[INFO] [stdout]  --> src/array/delete.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::error::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::num`
[INFO] [stdout]  --> src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use core::num;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `borrow::BorrowMut`
[INFO] [stdout]  --> src/main.rs:7:11
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::{borrow::BorrowMut};
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::MyBox`
[INFO] [stdout]   --> src/my_box.rs:42:9
[INFO] [stdout]    |
[INFO] [stdout] 42 |     use super::MyBox;
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `inter` should have an upper camel case name
[INFO] [stdout]  --> src/inter_mut.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct inter {
[INFO] [stdout]   |            ^^^^^ help: convert the identifier to upper camel case (notice the capitalization): `Inter`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::error::Error`
[INFO] [stdout]  --> src/array/delete.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::error::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::num`
[INFO] [stdout]  --> src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use core::num;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `borrow::BorrowMut`
[INFO] [stdout]  --> src/main.rs:7:11
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::{borrow::BorrowMut};
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> examples/valid_mountain.rs:11:14
[INFO] [stdout]    |
[INFO] [stdout] 11 |         for (i, &e) in arr.iter().enumerate() {
[INFO] [stdout]    |              ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> examples/028_find_the_index.rs:37:9
[INFO] [stdout]    |
[INFO] [stdout] 37 |     let x = Solution::str_str("abc".to_owned(), "c".to_owned());
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]   --> src/rc.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |     let b = Cons(3, Rc::clone(&a));
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `f` in this scope
[INFO] [stdout]   --> examples/linked_list.rs:61:45
[INFO] [stdout]    |
[INFO] [stdout] 61 |         let mut current = self.head.or_else(f);
[INFO] [stdout]    |                                             ^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `l2_vec` in this scope
[INFO] [stdout]   --> examples/02_add_two_num.rs:18:59
[INFO] [stdout]    |
[INFO] [stdout] 18 |         let sum = Self::get_sum(&l1_vec) + Self::get_sum(&l2_vec);
[INFO] [stdout]    |                                                           ^^^^^^ help: a local variable with a similar name exists: `l1_vec`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::borrow::Borrow`
[INFO] [stdout]  --> examples/linked_list.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::borrow::Borrow;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> examples/test.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 39 |     let s = Solution;
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `remove_element` is never used
[INFO] [stdout]  --> examples/test.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | impl Solution {
[INFO] [stdout]   | ------------- method in this implementation
[INFO] [stdout] 4 |     pub fn remove_element(self, nums: &mut Vec<i32>, val: i32) -> i32 {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c`
[INFO] [stdout]   --> src/rc.rs:23:13
[INFO] [stdout]    |
[INFO] [stdout] 23 |         let c = Cons(4, Rc::clone(&a));
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::borrow::Borrow`
[INFO] [stdout]  --> examples/02_add_two_num.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::borrow::Borrow;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MyCircularQueue` is never constructed
[INFO] [stdout]  --> src/queue.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct MyCircularQueue {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index`
[INFO] [stdout]   --> examples/linked_list.rs:30:23
[INFO] [stdout]    |
[INFO] [stdout] 30 |     fn get(&mut self, index: i32) -> i32 {
[INFO] [stdout]    |                       ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]   --> src/queue.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 9  | impl MyCircularQueue {
[INFO] [stdout]    | -------------------- associated items in this implementation
[INFO] [stdout] 10 |     pub fn new(k: i32) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 19 |     pub fn en_queue(&mut self, value: i32) -> bool {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 31 |     fn next_tail(&mut self) {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 39 |     fn next_head(&mut self) {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 47 |     pub fn de_queue(&mut self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 61 |     pub fn front(&self) -> i32 {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 65 |     pub fn rear(&self) -> i32 {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 69 |     pub fn is_empty(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 79 |     pub fn is_full(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 90 |     fn print_self(&self) {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `inter` is never constructed
[INFO] [stdout]  --> src/inter_mut.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct inter {
[INFO] [stdout]   |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test` is never used
[INFO] [stdout]   --> src/inter_mut.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn test() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/array/delete.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct Solution;
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `remove_element` is never used
[INFO] [stdout]  --> src/array/delete.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | impl Solution {
[INFO] [stdout]   | ------------- associated function in this implementation
[INFO] [stdout] 6 |     pub fn remove_element(nums: &mut Vec<i32>, val: i32) -> i32 {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index`
[INFO] [stdout]   --> examples/linked_list.rs:77:28
[INFO] [stdout]    |
[INFO] [stdout] 77 |     fn add_at_index(&self, index: i32, val: i32) {
[INFO] [stdout]    |                            ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `List` is never used
[INFO] [stdout]  --> src/my_box.rs:3:6
[INFO] [stdout]   |
[INFO] [stdout] 3 | enum List {
[INFO] [stdout]   |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MyBox` is never constructed
[INFO] [stdout]   --> src/my_box.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 19 | struct MyBox<T>(T);
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/my_box.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | impl<T> MyBox<T> {
[INFO] [stdout]    | ---------------- associated function in this implementation
[INFO] [stdout] 22 |     fn new(x: T) -> MyBox<T> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `List` is never used
[INFO] [stdout]  --> src/rc.rs:1:6
[INFO] [stdout]   |
[INFO] [stdout] 1 | enum List {
[INFO] [stdout]   |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test` is never used
[INFO] [stdout]  --> src/rc.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn test() {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `val`
[INFO] [stdout]   --> examples/linked_list.rs:77:40
[INFO] [stdout]    |
[INFO] [stdout] 77 |     fn add_at_index(&self, index: i32, val: i32) {
[INFO] [stdout]    |                                        ^^^ help: if this is intentional, prefix it with an underscore: `_val`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index`
[INFO] [stdout]   --> examples/linked_list.rs:81:31
[INFO] [stdout]    |
[INFO] [stdout] 81 |     fn delete_at_index(&self, index: i32) {
[INFO] [stdout]    |                               ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/queue.rs:101:17
[INFO] [stdout]     |
[INFO] [stdout] 101 |         let mut x  = MyCircularQueue::new(3);
[INFO] [stdout]     |                 ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/queue.rs:101:13
[INFO] [stdout]     |
[INFO] [stdout] 101 |         let mut x  = MyCircularQueue::new(3);
[INFO] [stdout]     |             ----^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]  --> src/test.rs:4:13
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let mut x  = MyCircularQueue::new(3);
[INFO] [stdout]   |             ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/test.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let mut x  = MyCircularQueue::new(3);
[INFO] [stdout]   |         ----^
[INFO] [stdout]   |         |
[INFO] [stdout]   |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]   --> src/rc.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |     let b = Cons(3, Rc::clone(&a));
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `leetCode` (example "linked_list") due to 2 previous errors; 5 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: unused variable: `c`
[INFO] [stdout]   --> src/rc.rs:23:13
[INFO] [stdout]    |
[INFO] [stdout] 23 |         let c = Cons(4, Rc::clone(&a));
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `array`, `size`, `head`, and `tail` are never read
[INFO] [stdout]  --> src/queue.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct MyCircularQueue {
[INFO] [stdout]   |            --------------- fields in this struct
[INFO] [stdout] 3 |     array: Vec<i32>, // 静的配列は動的に配列の長さを指定することができないので、
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 4 |     size: usize,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 5 |     head: usize,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 6 |     tail: usize,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stdout] warning: multiple methods are never used
[INFO] [stdout]   --> src/queue.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 9  | impl MyCircularQueue {
[INFO] [stdout]    | -------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 19 |     pub fn en_queue(&mut self, value: i32) -> bool {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 31 |     fn next_tail(&mut self) {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 39 |     fn next_head(&mut self) {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 47 |     pub fn de_queue(&mut self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 61 |     pub fn front(&self) -> i32 {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 65 |     pub fn rear(&self) -> i32 {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 69 |     pub fn is_empty(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 79 |     pub fn is_full(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 90 |     fn print_self(&self) {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `inter` is never constructed
[INFO] [stdout]  --> src/inter_mut.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct inter {
[INFO] [stdout]   |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test` is never used
[INFO] [stdout]   --> src/inter_mut.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn test() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `leetCode` (example "02_add_two_num") due to 2 previous errors; 1 warning emitted
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/array/delete.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct Solution;
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `remove_element` is never used
[INFO] [stdout]  --> src/array/delete.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | impl Solution {
[INFO] [stdout]   | ------------- associated function in this implementation
[INFO] [stdout] 6 |     pub fn remove_element(nums: &mut Vec<i32>, val: i32) -> i32 {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `List` is never used
[INFO] [stdout]  --> src/my_box.rs:3:6
[INFO] [stdout]   |
[INFO] [stdout] 3 | enum List {
[INFO] [stdout]   |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `List` is never used
[INFO] [stdout]  --> src/rc.rs:1:6
[INFO] [stdout]   |
[INFO] [stdout] 1 | enum List {
[INFO] [stdout]   |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 18 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> examples/add_two.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 5  |     pub fn two_sum(nums: Vec<i32>, target: i32) -> Vec<i32> {
[INFO] [stdout]    |                                                    -------- expected `Vec<i32>` because of return type
[INFO] [stdout] ...
[INFO] [stdout] 13 |                     v.push(i);
[INFO] [stdout]    |                     -      - this argument has type `usize`...
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     ... which causes `v` to have type `Vec<usize>`
[INFO] [stdout] ...
[INFO] [stdout] 19 |         v
[INFO] [stdout]    |         ^ expected `Vec<i32>`, found `Vec<usize>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected struct `Vec<i32>`
[INFO] [stdout]               found struct `Vec<usize>`
[INFO] [stdout] help: you can convert a `usize` to an `i32` and panic if the converted value doesn't fit
[INFO] [stdout]    |
[INFO] [stdout] 13 |                     v.push(i.try_into().unwrap());
[INFO] [stdout]    |                             ++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stdout] warning: function `test` is never used
[INFO] [stdout]  --> src/rc.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn test() {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 19 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `leetCode` (example "add_two") due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "04d72b0730943b72cf41a925982b98fdf391c618f69c1d1584fd170e23df8e72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "04d72b0730943b72cf41a925982b98fdf391c618f69c1d1584fd170e23df8e72", kill_on_drop: false }`
[INFO] [stdout] 04d72b0730943b72cf41a925982b98fdf391c618f69c1d1584fd170e23df8e72