[INFO] updating cached repository https://github.com/funn1est/leetcode-rust
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 5deed1f3e40fbbc710396db962f59b7aae0c89c0
[INFO] checking funn1est/leetcode-rust against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffunn1est%2Fleetcode-rust" "/workspace/builds/worker-7/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/funn1est/leetcode-rust on toolchain 45d050cde277b22a755847338f2acc2c7b834141
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/funn1est/leetcode-rust
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[INFO] crate git repo https://github.com/funn1est/leetcode-rust already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] edc160f86ad7d4100d60431d813d452d38442a2f32128a13b402c5dadddb42f2
[INFO] running `"docker" "start" "-a" "edc160f86ad7d4100d60431d813d452d38442a2f32128a13b402c5dadddb42f2"`
[INFO] [stderr]     Checking leetcode-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `vec_to_list_node`
[INFO] [stderr]  --> src/n2_add_two_numbers/mod.rs:4:32
[INFO] [stderr]   |
[INFO] [stderr] 4 | use super::libs::linked_list::{vec_to_list_node, ListNode};
[INFO] [stderr]   |                                ^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Solution`
[INFO] [stderr]  --> src/n1002_find_common_characters/mod.rs:4:12
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub struct Solution;
[INFO] [stderr]   |            ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `common_chars`
[INFO] [stderr]  --> src/n1002_find_common_characters/mod.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     pub fn common_chars(a: Vec<String>) -> Vec<String> {
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Solution`
[INFO] [stderr]  --> src/n1021_remove_outer_parentheses/mod.rs:4:12
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub struct Solution;
[INFO] [stderr]   |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `remove_outer_parentheses`
[INFO] [stderr]  --> src/n1021_remove_outer_parentheses/mod.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     pub fn remove_outer_parentheses(s: String) -> String {
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Solution`
[INFO] [stderr]  --> src/n1051_height_checker/mod.rs:4:12
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub struct Solution;
[INFO] [stderr]   |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `height_checker`
[INFO] [stderr]  --> src/n1051_height_checker/mod.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     pub fn height_checker(heights: Vec<i32>) -> i32 {
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Solution`
[INFO] [stderr]  --> src/n1064_fixed_point/mod.rs:4:12
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub struct Solution;
[INFO] [stderr]   |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `fixed_point`
[INFO] [stderr]  --> src/n1064_fixed_point/mod.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     pub fn fixed_point(a: Vec<i32>) -> i32 {
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Solution`
[INFO] [stderr]  --> src/n1108_defanging_an_ip_address/mod.rs:4:12
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub struct Solution;
[INFO] [stderr]   |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `defang_i_paddr`
[INFO] [stderr]  --> src/n1108_defanging_an_ip_address/mod.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     pub fn defang_i_paddr(address: String) -> String {
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `defang_i_paddr1`
[INFO] [stderr]   --> src/n1108_defanging_an_ip_address/mod.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     pub fn defang_i_paddr1(address: String) -> String {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Solution`
[INFO] [stderr]  --> src/n118_pascals_triangle/mod.rs:4:12
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub struct Solution;
[INFO] [stderr]   |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `generate`
[INFO] [stderr]  --> src/n118_pascals_triangle/mod.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     pub fn generate(num_rows: i32) -> Vec<Vec<i32>> {
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `generate1`
[INFO] [stderr]   --> src/n118_pascals_triangle/mod.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     pub fn generate1(num_rows: i32) -> Vec<Vec<i32>> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `generate2`
[INFO] [stderr]   --> src/n118_pascals_triangle/mod.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 |     pub fn generate2(num_rows: i32) -> Vec<Vec<i32>> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Solution`
[INFO] [stderr]  --> src/n11_container_with_most_water/mod.rs:6:12
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub struct Solution;
[INFO] [stderr]   |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `max_area`
[INFO] [stderr]  --> src/n11_container_with_most_water/mod.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     pub fn max_area(height: Vec<i32>) -> i32 {
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Solution`
[INFO] [stderr]  --> src/n1295_find_numbers_with_even_number_of_digits/mod.rs:4:12
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub struct Solution;
[INFO] [stderr]   |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `find_numbers`
[INFO] [stderr]  --> src/n1295_find_numbers_with_even_number_of_digits/mod.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     pub fn find_numbers(nums: Vec<i32>) -> i32 {
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Solution`
[INFO] [stderr]  --> src/n13_roman_to_integer/mod.rs:6:12
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub struct Solution;
[INFO] [stderr]   |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `roman_to_int`
[INFO] [stderr]  --> src/n13_roman_to_integer/mod.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     pub fn roman_to_int(s: String) -> i32 {
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Solution`
[INFO] [stderr]  --> src/n172_factorial_trailing_zeroes/mod.rs:4:12
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub struct Solution;
[INFO] [stderr]   |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `trailing_zeroes`
[INFO] [stderr]  --> src/n172_factorial_trailing_zeroes/mod.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     pub fn trailing_zeroes(n: i32) -> i32 {
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `helper`
[INFO] [stderr]  --> src/n172_factorial_trailing_zeroes/mod.rs:8:12
[INFO] [stderr]   |
[INFO] [stderr] 8 |         fn helper(n: i32, total: i32) -> i32 {
[INFO] [stderr]   |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `trailing_zeroes1`
[INFO] [stderr]   --> src/n172_factorial_trailing_zeroes/mod.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     pub fn trailing_zeroes1(n: i32) -> i32 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Solution`
[INFO] [stderr]  --> src/n198_house_robber/mod.rs:6:12
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub struct Solution;
[INFO] [stderr]   |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `rob`
[INFO] [stderr]  --> src/n198_house_robber/mod.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     pub fn rob(nums: Vec<i32>) -> i32 {
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Solution`
[INFO] [stderr]  --> src/n202_happy_number/mod.rs:6:12
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub struct Solution;
[INFO] [stderr]   |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `is_happy`
[INFO] [stderr]  --> src/n202_happy_number/mod.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     pub fn is_happy(n: i32) -> bool {
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Solution`
[INFO] [stderr]  --> src/n268_missing_number/mod.rs:4:12
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub struct Solution;
[INFO] [stderr]   |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `missing_number`
[INFO] [stderr]  --> src/n268_missing_number/mod.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     pub fn missing_number(nums: Vec<i32>) -> i32 {
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Solution`
[INFO] [stderr]  --> src/n27_remove_element/mod.rs:4:12
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub struct Solution;
[INFO] [stderr]   |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `remove_element`
[INFO] [stderr]  --> src/n27_remove_element/mod.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     pub fn remove_element(nums: &mut Vec<i32>, val: i32) -> i32 {
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Solution`
[INFO] [stderr]  --> src/n2_add_two_numbers/mod.rs:6:12
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub struct Solution;
[INFO] [stderr]   |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `add_two_numbers`
[INFO] [stderr]   --> src/n2_add_two_numbers/mod.rs:9:5
[INFO] [stderr]    |
[INFO] [stderr] 9  | /     pub fn add_two_numbers(
[INFO] [stderr] 10 | |         l1: Option<Box<ListNode>>,
[INFO] [stderr] 11 | |         l2: Option<Box<ListNode>>,
[INFO] [stderr] 12 | |     ) -> Option<Box<ListNode>> {
[INFO] [stderr] ...  |
[INFO] [stderr] 39 | |         dummy.unwrap().next
[INFO] [stderr] 40 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Solution`
[INFO] [stderr]  --> src/n344_reverse_string/mod.rs:4:12
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub struct Solution;
[INFO] [stderr]   |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `reverse_string`
[INFO] [stderr]  --> src/n344_reverse_string/mod.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     pub fn reverse_string(s: &mut Vec<char>) {
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Solution`
[INFO] [stderr]  --> src/n3_longest_substring_without_repeating_characters/mod.rs:7:12
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub struct Solution;
[INFO] [stderr]   |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `length_of_longest_substring`
[INFO] [stderr]   --> src/n3_longest_substring_without_repeating_characters/mod.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     pub fn length_of_longest_substring(s: String) -> i32 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Solution`
[INFO] [stderr]  --> src/n412_fizz_buzz/mod.rs:4:12
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub struct Solution;
[INFO] [stderr]   |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `fizz_buzz`
[INFO] [stderr]  --> src/n412_fizz_buzz/mod.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     pub fn fizz_buzz(n: i32) -> Vec<String> {
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Solution`
[INFO] [stderr]  --> src/n461_hamming_distance/mod.rs:4:12
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub struct Solution;
[INFO] [stderr]   |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `hamming_distance`
[INFO] [stderr]  --> src/n461_hamming_distance/mod.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     pub fn hamming_distance(x: i32, y: i32) -> i32 {
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `hamming_distance1`
[INFO] [stderr]   --> src/n461_hamming_distance/mod.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     pub fn hamming_distance1(x: i32, y: i32) -> i32 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `hamming_distance2`
[INFO] [stderr]   --> src/n461_hamming_distance/mod.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     pub fn hamming_distance2(x: i32, y: i32) -> i32 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Solution`
[INFO] [stderr]  --> src/n49_group_anagrams/mod.rs:6:12
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub struct Solution;
[INFO] [stderr]   |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `group_anagrams`
[INFO] [stderr]  --> src/n49_group_anagrams/mod.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     pub fn group_anagrams(strs: Vec<String>) -> Vec<Vec<String>> {
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Solution`
[INFO] [stderr]  --> src/n500_keyboard_row/mod.rs:6:12
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub struct Solution;
[INFO] [stderr]   |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `find_words`
[INFO] [stderr]  --> src/n500_keyboard_row/mod.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     pub fn find_words(words: Vec<String>) -> Vec<String> {
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Solution`
[INFO] [stderr]  --> src/n53_maximum_subarray/mod.rs:6:12
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub struct Solution;
[INFO] [stderr]   |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `max_sub_array`
[INFO] [stderr]  --> src/n53_maximum_subarray/mod.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     pub fn max_sub_array(nums: Vec<i32>) -> i32 {
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Solution`
[INFO] [stderr]  --> src/n62_unique_paths/mod.rs:4:12
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub struct Solution;
[INFO] [stderr]   |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `unique_paths`
[INFO] [stderr]  --> src/n62_unique_paths/mod.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     pub fn unique_paths(m: i32, n: i32) -> i32 {
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `unique_paths1`
[INFO] [stderr]   --> src/n62_unique_paths/mod.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 |     pub fn unique_paths1(m: i32, n: i32) -> i32 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `unique_paths2`
[INFO] [stderr]   --> src/n62_unique_paths/mod.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 26 |     pub fn unique_paths2(m: i32, n: i32) -> i32 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `helper`
[INFO] [stderr]   --> src/n62_unique_paths/mod.rs:30:12
[INFO] [stderr]    |
[INFO] [stderr] 30 |         fn helper(m: usize, n: usize, memo: &mut Vec<Vec<i32>>) -> i32 {
[INFO] [stderr]    |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Solution`
[INFO] [stderr]  --> src/n724_find_pivot_index/mod.rs:4:12
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub struct Solution;
[INFO] [stderr]   |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `pivot_index`
[INFO] [stderr]  --> src/n724_find_pivot_index/mod.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     pub fn pivot_index(nums: Vec<i32>) -> i32 {
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Solution`
[INFO] [stderr]  --> src/n75_sort_colors/mod.rs:4:12
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub struct Solution;
[INFO] [stderr]   |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `sort_colors`
[INFO] [stderr]  --> src/n75_sort_colors/mod.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     pub fn sort_colors(nums: &mut Vec<i32>) {
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Solution`
[INFO] [stderr]  --> src/n849_maximize_distance_to_closest_person/mod.rs:4:12
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub struct Solution;
[INFO] [stderr]   |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `max_dist_to_closest`
[INFO] [stderr]  --> src/n849_maximize_distance_to_closest_person/mod.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     pub fn max_dist_to_closest(seats: Vec<i32>) -> i32 {
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Solution`
[INFO] [stderr]  --> src/n905_sort_array_by_parity/mod.rs:4:12
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub struct Solution;
[INFO] [stderr]   |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `sort_array_by_parity`
[INFO] [stderr]  --> src/n905_sort_array_by_parity/mod.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     pub fn sort_array_by_parity(a: Vec<i32>) -> Vec<i32> {
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `sort_array_by_parity1`
[INFO] [stderr]   --> src/n905_sort_array_by_parity/mod.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 |     pub fn sort_array_by_parity1(a: Vec<i32>) -> Vec<i32> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Solution`
[INFO] [stderr]  --> src/n908_smallest_range_i/mod.rs:4:12
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub struct Solution;
[INFO] [stderr]   |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `smallest_range_i`
[INFO] [stderr]  --> src/n908_smallest_range_i/mod.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     pub fn smallest_range_i(a: Vec<i32>, k: i32) -> i32 {
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Solution`
[INFO] [stderr]  --> src/n976_largest_perimeter_triangle/mod.rs:4:12
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub struct Solution;
[INFO] [stderr]   |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `largest_perimeter`
[INFO] [stderr]  --> src/n976_largest_perimeter_triangle/mod.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     pub fn largest_perimeter(mut a: Vec<i32>) -> i32 {
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Solution`
[INFO] [stderr]  --> src/n9_palindrome_number/mod.rs:4:12
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub struct Solution;
[INFO] [stderr]   |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `is_palindrome`
[INFO] [stderr]  --> src/n9_palindrome_number/mod.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     pub fn is_palindrome(x: i32) -> bool {
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 72 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.06s
[INFO] running `"docker" "inspect" "edc160f86ad7d4100d60431d813d452d38442a2f32128a13b402c5dadddb42f2"`
[INFO] running `"docker" "rm" "-f" "edc160f86ad7d4100d60431d813d452d38442a2f32128a13b402c5dadddb42f2"`
[INFO] [stdout] edc160f86ad7d4100d60431d813d452d38442a2f32128a13b402c5dadddb42f2