[INFO] cloning repository https://github.com/joelhy/leetcode-in-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/joelhy/leetcode-in-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjoelhy%2Fleetcode-in-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjoelhy%2Fleetcode-in-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5766b3bdae22b7c842e4e3c3aea025cf075c9ee2
[INFO] checking joelhy/leetcode-in-rust against try#8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8 for pr-82565
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjoelhy%2Fleetcode-in-rust" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/joelhy/leetcode-in-rust on toolchain 8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/joelhy/leetcode-in-rust
[INFO] finished tweaking git repo https://github.com/joelhy/leetcode-in-rust
[INFO] tweaked toml for git repo https://github.com/joelhy/leetcode-in-rust written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/joelhy/leetcode-in-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a5910c55614f3c1ab8b88d7de3214c4aad8bf3770f194205f6b3abd10971f2ed
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "a5910c55614f3c1ab8b88d7de3214c4aad8bf3770f194205f6b3abd10971f2ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a5910c55614f3c1ab8b88d7de3214c4aad8bf3770f194205f6b3abd10971f2ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5910c55614f3c1ab8b88d7de3214c4aad8bf3770f194205f6b3abd10971f2ed", kill_on_drop: false }`
[INFO] [stdout] a5910c55614f3c1ab8b88d7de3214c4aad8bf3770f194205f6b3abd10971f2ed
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e870d7d35c0ac48dc814573719cd0fc442eeab029a678256f38d92d1d988e718
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "e870d7d35c0ac48dc814573719cd0fc442eeab029a678256f38d92d1d988e718", kill_on_drop: false }`
[INFO] [stderr]     Checking leetcode-in-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]   --> src/n0100_same_tree.rs:55:1
[INFO] [stdout]    |
[INFO] [stdout] 55 | / macro_rules! tree {
[INFO] [stdout] 56 | |     () => {
[INFO] [stdout] 57 | |         None
[INFO] [stdout] 58 | |     };
[INFO] [stdout] ...  |
[INFO] [stdout] 66 | |     ($($e:expr,)*) => {(tree![$($e),*])};
[INFO] [stdout] 67 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_macros)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/n0001_two_sum.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | 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 never used: `two_sum`
[INFO] [stdout]  --> src/n0001_two_sum.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 |     pub fn two_sum(nums: Vec<i32>, target: i32) -> Vec<i32> {
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/n0002_add_two_numbers.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct Solution {}
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_two_numbers`
[INFO] [stdout]  --> src/n0002_add_two_numbers.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 |     pub fn add_two_numbers(l1: Option<Box<ListNode>>, l2: Option<Box<ListNode>>) -> Option<Box<ListNode>> {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/n0003_longest_substring_without_repeating_characters.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Solution {}
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `length_of_longest_substring`
[INFO] [stdout]  --> src/n0003_longest_substring_without_repeating_characters.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 |     pub fn length_of_longest_substring(s: String) -> i32 {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/n0005_longest_palindromic_substring.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Solution {}
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `find_palindrome`
[INFO] [stdout]  --> src/n0005_longest_palindromic_substring.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 |     fn find_palindrome(s: &str, mut left: usize, mut right: usize) -> &str {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `longest_palindrome`
[INFO] [stdout]   --> src/n0005_longest_palindromic_substring.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub fn longest_palindrome(s: String) -> String {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/n0006_zigzag_conversion.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Solution {}
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `convert`
[INFO] [stdout]  --> src/n0006_zigzag_conversion.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 |     pub fn convert(s: String, num_rows: i32) -> String {
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/n0007_reverse_integer.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Solution {}
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `reverse`
[INFO] [stdout]  --> src/n0007_reverse_integer.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 |     pub fn reverse(x: i32) -> i32 {
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/n0008_string_to_integer_atoi.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Solution {}
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `my_atoi`
[INFO] [stdout]  --> src/n0008_string_to_integer_atoi.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 |     pub fn my_atoi(input: String) -> i32 {
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/n0009_palindrome_number.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Solution {}
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_palindrome`
[INFO] [stdout]  --> src/n0009_palindrome_number.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 |     pub fn is_palindrome(x: i32) -> bool {
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `reverse`
[INFO] [stdout]   --> src/n0009_palindrome_number.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 |         fn reverse(x: i32) -> i32 {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/n0011_container_with_most_water.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Solution {}
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `max_area`
[INFO] [stdout]  --> src/n0011_container_with_most_water.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 |     pub fn max_area(height: Vec<i32>) -> i32 {
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/n0012_integer_to_roman.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Solution {}
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `int_to_roman`
[INFO] [stdout]  --> src/n0012_integer_to_roman.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 |     pub fn int_to_roman(num: i32) -> String {
[INFO] [stdout]   |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/n0013_roman_to_integer.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Solution {}
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `roman_to_int`
[INFO] [stdout]  --> src/n0013_roman_to_integer.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 |     pub fn roman_to_int(s: String) -> i32 {
[INFO] [stdout]   |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `roman_char_to_int`
[INFO] [stdout]  --> src/n0013_roman_to_integer.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 |         fn roman_char_to_int(c: char) -> i32 {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/n0014_longest_common_prefix.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Solution {}
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `longest_common_prefix`
[INFO] [stdout]  --> src/n0014_longest_common_prefix.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 |     pub fn longest_common_prefix(strs: Vec<String>) -> String {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/n0015_3sum.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Solution {}
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `three_sum`
[INFO] [stdout]  --> src/n0015_3sum.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 |     pub fn three_sum(nums: Vec<i32>) -> Vec<Vec<i32>> {
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/n0016_3sum_closest.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Solution {}
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `three_sum_closest`
[INFO] [stdout]  --> src/n0016_3sum_closest.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 |     pub fn three_sum_closest(nums: Vec<i32>, target: i32) -> i32 {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/n0017_letter_combinations_of_a_phone_number.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Solution {}
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `letter_combinations`
[INFO] [stdout]  --> src/n0017_letter_combinations_of_a_phone_number.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 |     pub fn letter_combinations(digits: String) -> Vec<String> {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/n0018_4sum.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Solution {}
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `four_sum`
[INFO] [stdout]  --> src/n0018_4sum.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 |     pub fn four_sum(nums: Vec<i32>, target: i32) -> Vec<Vec<i32>> {
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/n0019_remove_nth_node_from_end_of_list.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct Solution {}
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `remove_nth_from_end`
[INFO] [stdout]  --> src/n0019_remove_nth_node_from_end_of_list.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 |     pub fn remove_nth_from_end(head: Option<Box<ListNode>>, n: i32) -> Option<Box<ListNode>> {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/n0020_valid_parentheses.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Solution {}
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_valid`
[INFO] [stdout]  --> src/n0020_valid_parentheses.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 |     pub fn is_valid(s: String) -> bool {
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/n0021_merge_two_sorted_lists.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct Solution {}
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `merge_two_lists`
[INFO] [stdout]  --> src/n0021_merge_two_sorted_lists.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 |     pub fn merge_two_lists(l1: Option<Box<ListNode>>, l2: Option<Box<ListNode>>) -> Option<Box<ListNode>> {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/n0022_generate_parentheses.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Solution {}
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `generate_parenthesis`
[INFO] [stdout]  --> src/n0022_generate_parentheses.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 |     pub fn generate_parenthesis(n: i32) -> Vec<String> {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `backtrack`
[INFO] [stdout]   --> src/n0022_generate_parentheses.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 |     fn backtrack(result: &mut Vec<String>, curr: String, left: i32, right: i32, n: i32) {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/n0024_swap_nodes_in_pairs.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct Solution {}
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `swap_pairs`
[INFO] [stdout]  --> src/n0024_swap_nodes_in_pairs.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 |     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/n0026_remove_duplicates_from_sorted_array.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Solution {}
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `remove_duplicates`
[INFO] [stdout]  --> src/n0026_remove_duplicates_from_sorted_array.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 |     pub fn remove_duplicates(nums: &mut Vec<i32>) -> i32 {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/n0027_remove_element.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Solution {}
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `remove_element`
[INFO] [stdout]  --> src/n0027_remove_element.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 |     pub fn remove_element(nums: &mut Vec<i32>, val: i32) -> i32 {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/n0028_implement_strstr.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Solution {}
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `str_str`
[INFO] [stdout]  --> src/n0028_implement_strstr.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 |     pub fn str_str(haystack: String, needle: String) -> i32 {
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/n0029_divide_two_integers.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Solution {}
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `divide`
[INFO] [stdout]  --> src/n0029_divide_two_integers.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 |     pub fn divide(dividend: i32, divisor: i32) -> i32 {
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/n0031_next_permutation.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Solution {}
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `next_permutation`
[INFO] [stdout]  --> src/n0031_next_permutation.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 |     pub fn next_permutation(nums: &mut Vec<i32>) {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/n0033_search_in_rotated_sorted_array.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Solution {}
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `search`
[INFO] [stdout]  --> src/n0033_search_in_rotated_sorted_array.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 |     pub fn search(nums: Vec<i32>, target: i32) -> i32 {
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/n0034_find_first_and_last_position_of_element_in_sorted_array.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Solution {}
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `search_range`
[INFO] [stdout]  --> src/n0034_find_first_and_last_position_of_element_in_sorted_array.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 |     pub fn search_range(nums: Vec<i32>, target: i32) -> Vec<i32> {
[INFO] [stdout]   |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/n0035_search_insert_position.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Solution {}
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `search_insert`
[INFO] [stdout]  --> src/n0035_search_insert_position.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 |     pub fn search_insert(nums: Vec<i32>, target: i32) -> i32 {
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/n0036_valid_sudoku.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Solution {}
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_valid_sudoku`
[INFO] [stdout]  --> src/n0036_valid_sudoku.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 |     pub fn is_valid_sudoku(board: Vec<Vec<char>>) -> bool {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/n0038_count_and_say.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Solution {}
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `count_and_say`
[INFO] [stdout]  --> src/n0038_count_and_say.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 |     pub fn count_and_say(n: i32) -> String {
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/n0039_combination_sum.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Solution {}
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `combination_sum`
[INFO] [stdout]  --> src/n0039_combination_sum.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 |     pub fn combination_sum(candidates: Vec<i32>, target: i32) -> Vec<Vec<i32>> {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `solve`
[INFO] [stdout]   --> src/n0039_combination_sum.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn solve(seq: &[i32], target: i32, result: &mut Vec<Vec<i32>>, answer: Vec<i32>, start: usize) {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/n0040_combination_sum_ii.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Solution {}
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `combination_sum2`
[INFO] [stdout]  --> src/n0040_combination_sum_ii.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 |     pub fn combination_sum2(candidates: Vec<i32>, target: i32) -> Vec<Vec<i32>> {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `solve`
[INFO] [stdout]   --> src/n0040_combination_sum_ii.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn solve(seq: &[i32], target: i32, result: &mut Vec<Vec<i32>>, answer: Vec<i32>, start: usize) {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/n0043_multiply_strings.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Solution {}
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `multiply`
[INFO] [stdout]  --> src/n0043_multiply_strings.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 |     pub fn multiply(num1: String, num2: String) -> String {
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/n0046_permutations.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Solution {}
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `permute`
[INFO] [stdout]  --> src/n0046_permutations.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 |     pub fn permute(nums: Vec<i32>) -> Vec<Vec<i32>> {
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/n0047_permutations_ii.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Solution {}
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `permute_unique`
[INFO] [stdout]  --> src/n0047_permutations_ii.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 |     pub fn permute_unique(nums: Vec<i32>) -> Vec<Vec<i32>> {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/n0048_rotate_image.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Solution {}
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `rotate`
[INFO] [stdout]  --> src/n0048_rotate_image.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 |     pub fn rotate(matrix: &mut Vec<Vec<i32>>) {
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/n0049_group_anagrams.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Solution {}
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `group_anagrams`
[INFO] [stdout]  --> src/n0049_group_anagrams.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 |     pub fn group_anagrams(strs: Vec<String>) -> Vec<Vec<String>> {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/n0050_powx_n.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Solution {}
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `my_pow`
[INFO] [stdout]  --> src/n0050_powx_n.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 |     pub fn my_pow(x: f64, n: i32) -> f64 {
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/n0053_maximum_subarray.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Solution {}
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `max_sub_array`
[INFO] [stdout]  --> src/n0053_maximum_subarray.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 |     pub fn max_sub_array(nums: Vec<i32>) -> i32 {
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/n0054_spiral_matrix.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Solution {}
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `spiral_order`
[INFO] [stdout]  --> src/n0054_spiral_matrix.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 |     pub fn spiral_order(matrix: Vec<Vec<i32>>) -> Vec<i32> {
[INFO] [stdout]   |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/n0058_length_of_last_word.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Solution {}
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `length_of_last_word`
[INFO] [stdout]  --> src/n0058_length_of_last_word.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 |     pub fn length_of_last_word(s: String) -> i32 {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/n0066_plus_one.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Solution {}
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `plus_one`
[INFO] [stdout]  --> src/n0066_plus_one.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 |     pub fn plus_one(digits: Vec<i32>) -> Vec<i32> {
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/n0067_add_binary.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Solution {}
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_binary`
[INFO] [stdout]  --> src/n0067_add_binary.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 |     pub fn add_binary(a: String, b: String) -> String {
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/n0069_sqrtx.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Solution {}
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `my_sqrt`
[INFO] [stdout]  --> src/n0069_sqrtx.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 |     pub fn my_sqrt(x: i32) -> i32 {
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/n0070_climbing_stairs.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Solution {}
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `climb_stairs`
[INFO] [stdout]  --> src/n0070_climbing_stairs.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 |     pub fn climb_stairs(n: i32) -> i32 {
[INFO] [stdout]   |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/n0083_remove_duplicates_from_sorted_list.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct Solution {}
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `delete_duplicates`
[INFO] [stdout]  --> src/n0083_remove_duplicates_from_sorted_list.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 |     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/n0088_merge_sorted_array.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Solution {}
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `merge`
[INFO] [stdout]  --> src/n0088_merge_sorted_array.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 |     pub fn merge(nums1: &mut Vec<i32>, m: i32, nums2: &mut Vec<i32>, n: i32) {
[INFO] [stdout]   |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/n0100_same_tree.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Solution {}
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/n0100_same_tree.rs:13:10
[INFO] [stdout]    |
[INFO] [stdout] 13 |   pub fn new(val: i32) -> Self {
[INFO] [stdout]    |          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_same_tree`
[INFO] [stdout]   --> src/n0100_same_tree.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn is_same_tree(p: Option<Rc<RefCell<TreeNode>>>, q: Option<Rc<RefCell<TreeNode>>>) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `to_tree`
[INFO] [stdout]   --> src/n0100_same_tree.rs:33:8
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub fn to_tree(vec: Vec<Option<i32>>) -> Option<Rc<RefCell<TreeNode>>> {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/list.rs:10:10
[INFO] [stdout]    |
[INFO] [stdout] 10 |   pub fn new(val: i32) -> Self {
[INFO] [stdout]    |          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]   --> src/n0083_remove_duplicates_from_sorted_list.rs:16:17
[INFO] [stdout]    |
[INFO] [stdout] 16 |                 std::mem::replace(&mut curr.next, next_next);
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 109 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]   --> src/n0083_remove_duplicates_from_sorted_list.rs:16:17
[INFO] [stdout]    |
[INFO] [stdout] 16 |                 std::mem::replace(&mut curr.next, next_next);
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.78s
[INFO] running `Command { std: "docker" "inspect" "e870d7d35c0ac48dc814573719cd0fc442eeab029a678256f38d92d1d988e718", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e870d7d35c0ac48dc814573719cd0fc442eeab029a678256f38d92d1d988e718", kill_on_drop: false }`
[INFO] [stdout] e870d7d35c0ac48dc814573719cd0fc442eeab029a678256f38d92d1d988e718