[INFO] cloning repository https://github.com/tbqjxmz/leetcode-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tbqjxmz/leetcode-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftbqjxmz%2Fleetcode-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftbqjxmz%2Fleetcode-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] caf18943fd394d3a413804ed178a5915d7b263e6
[INFO] checking tbqjxmz/leetcode-rs against try#3652eaba14e5de752eaa5a8ffcac7132f9244f07 for pr-139272
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftbqjxmz%2Fleetcode-rs" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tbqjxmz/leetcode-rs on toolchain 3652eaba14e5de752eaa5a8ffcac7132f9244f07
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3652eaba14e5de752eaa5a8ffcac7132f9244f07" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tbqjxmz/leetcode-rs
[INFO] finished tweaking git repo https://github.com/tbqjxmz/leetcode-rs
[INFO] tweaked toml for git repo https://github.com/tbqjxmz/leetcode-rs written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/tbqjxmz/leetcode-rs 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" "+3652eaba14e5de752eaa5a8ffcac7132f9244f07" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+3652eaba14e5de752eaa5a8ffcac7132f9244f07" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3607f230fb14a70bcbdb41afabf15e2130ecb1fffc905f6bd8b8721fd35db237
[INFO] running `Command { std: "docker" "start" "-a" "3607f230fb14a70bcbdb41afabf15e2130ecb1fffc905f6bd8b8721fd35db237", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3607f230fb14a70bcbdb41afabf15e2130ecb1fffc905f6bd8b8721fd35db237", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3607f230fb14a70bcbdb41afabf15e2130ecb1fffc905f6bd8b8721fd35db237", kill_on_drop: false }`
[INFO] [stdout] 3607f230fb14a70bcbdb41afabf15e2130ecb1fffc905f6bd8b8721fd35db237
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+3652eaba14e5de752eaa5a8ffcac7132f9244f07" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3c219729ae2778660d0372271354003b6d355b07f4a19c0b87c6cee947f18b6e
[INFO] running `Command { std: "docker" "start" "-a" "3c219729ae2778660d0372271354003b6d355b07f4a19c0b87c6cee947f18b6e", kill_on_drop: false }`
[INFO] [stderr]     Checking leetcode v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]   --> src/bin/58最后一个单词的长度.rs:59:8
[INFO] [stdout]    |
[INFO] [stdout] 59 | struct Solution;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]   --> src/bin/13罗马数字转整数.rs:93:8
[INFO] [stdout]    |
[INFO] [stdout] 93 | struct Solution;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `roman_to_int` is never used
[INFO] [stdout]   --> src/bin/13罗马数字转整数.rs:97:12
[INFO] [stdout]    |
[INFO] [stdout] 96 | impl Solution {
[INFO] [stdout]    | ------------- associated function in this implementation
[INFO] [stdout] 97 |     pub fn roman_to_int(s: String) -> i32 {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `length_of_last_word` is never used
[INFO] [stdout]   --> src/bin/58最后一个单词的长度.rs:63:12
[INFO] [stdout]    |
[INFO] [stdout] 62 | impl Solution {
[INFO] [stdout]    | ------------- associated function in this implementation
[INFO] [stdout] 63 |     pub fn length_of_last_word(s: String) -> i32 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]   --> src/bin/14最长公共前缀.rs:49:8
[INFO] [stdout]    |
[INFO] [stdout] 49 | struct Solution;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `longest_common_prefix` is never used
[INFO] [stdout]   --> src/bin/14最长公共前缀.rs:53:12
[INFO] [stdout]    |
[INFO] [stdout] 52 | impl Solution {
[INFO] [stdout]    | ------------- associated function in this implementation
[INFO] [stdout] 53 |     pub fn longest_common_prefix(strs: Vec<String>) -> String {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]   --> src/bin/1两数之和.rs:64:8
[INFO] [stdout]    |
[INFO] [stdout] 64 | struct Solution;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `two_sum` is never used
[INFO] [stdout]   --> src/bin/1两数之和.rs:85:12
[INFO] [stdout]    |
[INFO] [stdout] 69 | impl Solution {
[INFO] [stdout]    | ------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 85 |     pub fn two_sum(nums: Vec<i32>, target: i32) -> Vec<i32> {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]   --> src/bin/26删除有序数组中的重复项.rs:76:8
[INFO] [stdout]    |
[INFO] [stdout] 76 | struct Solution;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `remove_duplicates` is never used
[INFO] [stdout]   --> src/bin/26删除有序数组中的重复项.rs:80:12
[INFO] [stdout]    |
[INFO] [stdout] 79 | impl Solution {
[INFO] [stdout]    | ------------- associated function in this implementation
[INFO] [stdout] 80 |     pub fn remove_duplicates(nums: &mut Vec<i32>) -> i32 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]   --> src/bin/20有效的括号.rs:72:8
[INFO] [stdout]    |
[INFO] [stdout] 72 | struct Solution;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `is_valid` is never used
[INFO] [stdout]   --> src/bin/20有效的括号.rs:76:12
[INFO] [stdout]    |
[INFO] [stdout] 75 | impl Solution {
[INFO] [stdout]    | ------------- associated function in this implementation
[INFO] [stdout] 76 |     pub fn is_valid(s: String) -> bool {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]   --> src/bin/27移除元素.rs:79:8
[INFO] [stdout]    |
[INFO] [stdout] 79 | struct Solution;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `remove_element` is never used
[INFO] [stdout]   --> src/bin/27移除元素.rs:83:12
[INFO] [stdout]    |
[INFO] [stdout] 82 | impl Solution {
[INFO] [stdout]    | ------------- associated function in this implementation
[INFO] [stdout] 83 |     pub fn remove_element(nums: &mut Vec<i32>, val: i32) -> i32 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]   --> src/bin/20有效的括号.rs:72:8
[INFO] [stdout]    |
[INFO] [stdout] 72 | struct Solution;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `is_valid` is never used
[INFO] [stdout]   --> src/bin/20有效的括号.rs:76:12
[INFO] [stdout]    |
[INFO] [stdout] 75 | impl Solution {
[INFO] [stdout]    | ------------- associated function in this implementation
[INFO] [stdout] 76 |     pub fn is_valid(s: String) -> bool {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]   --> src/bin/28找出字符串中第一个匹配项的下标.rs:50:8
[INFO] [stdout]    |
[INFO] [stdout] 50 | struct Solution;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `str_str` is never used
[INFO] [stdout]   --> src/bin/28找出字符串中第一个匹配项的下标.rs:54:12
[INFO] [stdout]    |
[INFO] [stdout] 53 | impl Solution {
[INFO] [stdout]    | ------------- associated function in this implementation
[INFO] [stdout] 54 |     pub fn str_str(haystack: String, needle: String) -> i32 {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]   --> src/bin/26删除有序数组中的重复项.rs:76:8
[INFO] [stdout]    |
[INFO] [stdout] 76 | struct Solution;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `remove_duplicates` is never used
[INFO] [stdout]   --> src/bin/26删除有序数组中的重复项.rs:80:12
[INFO] [stdout]    |
[INFO] [stdout] 79 | impl Solution {
[INFO] [stdout]    | ------------- associated function in this implementation
[INFO] [stdout] 80 |     pub fn remove_duplicates(nums: &mut Vec<i32>) -> i32 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]   --> src/bin/66加一.rs:62:8
[INFO] [stdout]    |
[INFO] [stdout] 62 | struct Solution;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]   --> src/bin/1两数之和.rs:64:8
[INFO] [stdout]    |
[INFO] [stdout] 64 | struct Solution;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/21合并两个有序链表.rs:92:13
[INFO] [stdout]    |
[INFO] [stdout] 92 |         let mut cur = &mut head;
[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: struct `Solution` is never constructed
[INFO] [stdout]   --> src/bin/35搜索插入位置.rs:57:8
[INFO] [stdout]    |
[INFO] [stdout] 57 | struct Solution;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `plus_one` is never used
[INFO] [stdout]   --> src/bin/66加一.rs:66:12
[INFO] [stdout]    |
[INFO] [stdout] 65 | impl Solution {
[INFO] [stdout]    | ------------- associated function in this implementation
[INFO] [stdout] 66 |     pub fn plus_one(digits: Vec<i32>) -> Vec<i32> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/21合并两个有序链表.rs:92:13
[INFO] [stdout]    |
[INFO] [stdout] 92 |         let mut cur = &mut head;
[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: associated function `search_insert` is never used
[INFO] [stdout]   --> src/bin/35搜索插入位置.rs:61:12
[INFO] [stdout]    |
[INFO] [stdout] 60 | impl Solution {
[INFO] [stdout]    | ------------- associated function in this implementation
[INFO] [stdout] 61 |     pub fn search_insert(nums: Vec<i32>, target: i32) -> i32 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]   --> src/bin/21合并两个有序链表.rs:54:8
[INFO] [stdout]    |
[INFO] [stdout] 54 | struct Solution;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/bin/21合并两个有序链表.rs:64:8
[INFO] [stdout]    |
[INFO] [stdout] 62 | impl ListNode {
[INFO] [stdout]    | ------------- associated function in this implementation
[INFO] [stdout] 63 |     #[inline]
[INFO] [stdout] 64 |     fn new(val: i32) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `merge_two_lists` is never used
[INFO] [stdout]   --> src/bin/21合并两个有序链表.rs:87:12
[INFO] [stdout]    |
[INFO] [stdout] 86 | impl Solution {
[INFO] [stdout]    | ------------- associated function in this implementation
[INFO] [stdout] 87 |     pub fn merge_two_lists(
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `two_sum` is never used
[INFO] [stdout]   --> src/bin/1两数之和.rs:85:12
[INFO] [stdout]    |
[INFO] [stdout] 69 | impl Solution {
[INFO] [stdout]    | ------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 85 |     pub fn two_sum(nums: Vec<i32>, target: i32) -> Vec<i32> {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]   --> src/bin/13罗马数字转整数.rs:93:8
[INFO] [stdout]    |
[INFO] [stdout] 93 | struct Solution;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `roman_to_int` is never used
[INFO] [stdout]   --> src/bin/13罗马数字转整数.rs:97:12
[INFO] [stdout]    |
[INFO] [stdout] 96 | impl Solution {
[INFO] [stdout]    | ------------- associated function in this implementation
[INFO] [stdout] 97 |     pub fn roman_to_int(s: String) -> i32 {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]   --> src/bin/2两数相加.rs:59:8
[INFO] [stdout]    |
[INFO] [stdout] 59 | struct Solution;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/bin/2两数相加.rs:69:8
[INFO] [stdout]    |
[INFO] [stdout] 67 | impl ListNode {
[INFO] [stdout]    | ------------- associated function in this implementation
[INFO] [stdout] 68 |     #[inline]
[INFO] [stdout] 69 |     fn new(val: i32) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `add_two_numbers` is never used
[INFO] [stdout]   --> src/bin/2两数相加.rs:93:12
[INFO] [stdout]    |
[INFO] [stdout] 92 | impl Solution {
[INFO] [stdout]    | ------------- associated function in this implementation
[INFO] [stdout] 93 |     pub fn add_two_numbers(
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]   --> src/bin/2两数相加.rs:59:8
[INFO] [stdout]    |
[INFO] [stdout] 59 | struct Solution;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]   --> src/bin/66加一.rs:62:8
[INFO] [stdout]    |
[INFO] [stdout] 62 | struct Solution;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/bin/2两数相加.rs:69:8
[INFO] [stdout]    |
[INFO] [stdout] 67 | impl ListNode {
[INFO] [stdout]    | ------------- associated function in this implementation
[INFO] [stdout] 68 |     #[inline]
[INFO] [stdout] 69 |     fn new(val: i32) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `add_two_numbers` is never used
[INFO] [stdout]   --> src/bin/2两数相加.rs:93:12
[INFO] [stdout]    |
[INFO] [stdout] 92 | impl Solution {
[INFO] [stdout]    | ------------- associated function in this implementation
[INFO] [stdout] 93 |     pub fn add_two_numbers(
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]   --> src/bin/21合并两个有序链表.rs:54:8
[INFO] [stdout]    |
[INFO] [stdout] 54 | struct Solution;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/bin/21合并两个有序链表.rs:64:8
[INFO] [stdout]    |
[INFO] [stdout] 62 | impl ListNode {
[INFO] [stdout]    | ------------- associated function in this implementation
[INFO] [stdout] 63 |     #[inline]
[INFO] [stdout] 64 |     fn new(val: i32) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `merge_two_lists` is never used
[INFO] [stdout]   --> src/bin/21合并两个有序链表.rs:87:12
[INFO] [stdout]    |
[INFO] [stdout] 86 | impl Solution {
[INFO] [stdout]    | ------------- associated function in this implementation
[INFO] [stdout] 87 |     pub fn merge_two_lists(
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]   --> src/bin/67二进制求和.rs:45:8
[INFO] [stdout]    |
[INFO] [stdout] 45 | struct Solution;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `add_binary` is never used
[INFO] [stdout]   --> src/bin/67二进制求和.rs:49:12
[INFO] [stdout]    |
[INFO] [stdout] 48 | impl Solution {
[INFO] [stdout]    | ------------- associated function in this implementation
[INFO] [stdout] 49 |     pub fn add_binary(a: String, b: String) -> String {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `plus_one` is never used
[INFO] [stdout]   --> src/bin/66加一.rs:66:12
[INFO] [stdout]    |
[INFO] [stdout] 65 | impl Solution {
[INFO] [stdout]    | ------------- associated function in this implementation
[INFO] [stdout] 66 |     pub fn plus_one(digits: Vec<i32>) -> Vec<i32> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]   --> src/bin/14最长公共前缀.rs:49:8
[INFO] [stdout]    |
[INFO] [stdout] 49 | struct Solution;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `longest_common_prefix` is never used
[INFO] [stdout]   --> src/bin/14最长公共前缀.rs:53:12
[INFO] [stdout]    |
[INFO] [stdout] 52 | impl Solution {
[INFO] [stdout]    | ------------- associated function in this implementation
[INFO] [stdout] 53 |     pub fn longest_common_prefix(strs: Vec<String>) -> String {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]   --> src/bin/69x-的平方根.rs:50:8
[INFO] [stdout]    |
[INFO] [stdout] 50 | struct Solution;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `my_sqrt` is never used
[INFO] [stdout]   --> src/bin/69x-的平方根.rs:54:12
[INFO] [stdout]    |
[INFO] [stdout] 53 | impl Solution {
[INFO] [stdout]    | ------------- associated function in this implementation
[INFO] [stdout] 54 |     pub fn my_sqrt(x: i32) -> i32 {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]   --> src/bin/70爬楼梯.rs:53:8
[INFO] [stdout]    |
[INFO] [stdout] 53 | struct Solution;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `climb_stairs` is never used
[INFO] [stdout]   --> src/bin/70爬楼梯.rs:57:12
[INFO] [stdout]    |
[INFO] [stdout] 56 | impl Solution {
[INFO] [stdout]    | ------------- associated function in this implementation
[INFO] [stdout] 57 |     pub fn climb_stairs(n: i32) -> i32 {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]   --> src/bin/58最后一个单词的长度.rs:59:8
[INFO] [stdout]    |
[INFO] [stdout] 59 | struct Solution;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `length_of_last_word` is never used
[INFO] [stdout]   --> src/bin/58最后一个单词的长度.rs:63:12
[INFO] [stdout]    |
[INFO] [stdout] 62 | impl Solution {
[INFO] [stdout]    | ------------- associated function in this implementation
[INFO] [stdout] 63 |     pub fn length_of_last_word(s: String) -> i32 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]   --> src/bin/35搜索插入位置.rs:57:8
[INFO] [stdout]    |
[INFO] [stdout] 57 | struct Solution;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `search_insert` is never used
[INFO] [stdout]   --> src/bin/35搜索插入位置.rs:61:12
[INFO] [stdout]    |
[INFO] [stdout] 60 | impl Solution {
[INFO] [stdout]    | ------------- associated function in this implementation
[INFO] [stdout] 61 |     pub fn search_insert(nums: Vec<i32>, target: i32) -> i32 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]   --> src/bin/67二进制求和.rs:45:8
[INFO] [stdout]    |
[INFO] [stdout] 45 | struct Solution;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `add_binary` is never used
[INFO] [stdout]   --> src/bin/67二进制求和.rs:49:12
[INFO] [stdout]    |
[INFO] [stdout] 48 | impl Solution {
[INFO] [stdout]    | ------------- associated function in this implementation
[INFO] [stdout] 49 |     pub fn add_binary(a: String, b: String) -> String {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]   --> src/bin/69x-的平方根.rs:50:8
[INFO] [stdout]    |
[INFO] [stdout] 50 | struct Solution;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `my_sqrt` is never used
[INFO] [stdout]   --> src/bin/69x-的平方根.rs:54:12
[INFO] [stdout]    |
[INFO] [stdout] 53 | impl Solution {
[INFO] [stdout]    | ------------- associated function in this implementation
[INFO] [stdout] 54 |     pub fn my_sqrt(x: i32) -> i32 {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]   --> src/bin/27移除元素.rs:79:8
[INFO] [stdout]    |
[INFO] [stdout] 79 | struct Solution;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `remove_element` is never used
[INFO] [stdout]   --> src/bin/27移除元素.rs:83:12
[INFO] [stdout]    |
[INFO] [stdout] 82 | impl Solution {
[INFO] [stdout]    | ------------- associated function in this implementation
[INFO] [stdout] 83 |     pub fn remove_element(nums: &mut Vec<i32>, val: i32) -> i32 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]   --> src/bin/70爬楼梯.rs:53:8
[INFO] [stdout]    |
[INFO] [stdout] 53 | struct Solution;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `climb_stairs` is never used
[INFO] [stdout]   --> src/bin/70爬楼梯.rs:57:12
[INFO] [stdout]    |
[INFO] [stdout] 56 | impl Solution {
[INFO] [stdout]    | ------------- associated function in this implementation
[INFO] [stdout] 57 |     pub fn climb_stairs(n: i32) -> i32 {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]   --> src/bin/3190使所有元素都可以被-3-整除的最少操作数.rs:60:8
[INFO] [stdout]    |
[INFO] [stdout] 60 | struct Solution;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `minimum_operations` is never used
[INFO] [stdout]   --> src/bin/3190使所有元素都可以被-3-整除的最少操作数.rs:64:12
[INFO] [stdout]    |
[INFO] [stdout] 63 | impl Solution {
[INFO] [stdout]    | ------------- associated function in this implementation
[INFO] [stdout] 64 |     pub fn minimum_operations(nums: Vec<i32>) -> i32 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]   --> src/bin/28找出字符串中第一个匹配项的下标.rs:50:8
[INFO] [stdout]    |
[INFO] [stdout] 50 | struct Solution;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]   --> src/bin/3190使所有元素都可以被-3-整除的最少操作数.rs:60:8
[INFO] [stdout]    |
[INFO] [stdout] 60 | struct Solution;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `str_str` is never used
[INFO] [stdout]   --> src/bin/28找出字符串中第一个匹配项的下标.rs:54:12
[INFO] [stdout]    |
[INFO] [stdout] 53 | impl Solution {
[INFO] [stdout]    | ------------- associated function in this implementation
[INFO] [stdout] 54 |     pub fn str_str(haystack: String, needle: String) -> i32 {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `minimum_operations` is never used
[INFO] [stdout]   --> src/bin/3190使所有元素都可以被-3-整除的最少操作数.rs:64:12
[INFO] [stdout]    |
[INFO] [stdout] 63 | impl Solution {
[INFO] [stdout]    | ------------- associated function in this implementation
[INFO] [stdout] 64 |     pub fn minimum_operations(nums: Vec<i32>) -> i32 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]   --> src/bin/9回文数.rs:64:8
[INFO] [stdout]    |
[INFO] [stdout] 64 | struct Solution;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `is_palindrome` is never used
[INFO] [stdout]   --> src/bin/9回文数.rs:68:12
[INFO] [stdout]    |
[INFO] [stdout] 67 | impl Solution {
[INFO] [stdout]    | ------------- associated function in this implementation
[INFO] [stdout] 68 |     pub fn is_palindrome(x: i32) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.59s
[INFO] running `Command { std: "docker" "inspect" "3c219729ae2778660d0372271354003b6d355b07f4a19c0b87c6cee947f18b6e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c219729ae2778660d0372271354003b6d355b07f4a19c0b87c6cee947f18b6e", kill_on_drop: false }`
[INFO] [stdout] 3c219729ae2778660d0372271354003b6d355b07f4a19c0b87c6cee947f18b6e