[INFO] cloning repository https://github.com/imding/hackerank
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/imding/hackerank" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fimding%2Fhackerank", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fimding%2Fhackerank'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fa2eddfff106038e9fc80da786c5f6ef420c6756
[INFO] checking imding/hackerank against master#d14d202262d13df896b0c624b0cec6e4bfde631a for pr-143028
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fimding%2Fhackerank" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/imding/hackerank
[INFO] finished tweaking git repo https://github.com/imding/hackerank
[INFO] tweaked toml for git repo https://github.com/imding/hackerank written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/imding/hackerank on toolchain d14d202262d13df896b0c624b0cec6e4bfde631a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d14d202262d13df896b0c624b0cec6e4bfde631a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/imding/hackerank 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" "+d14d202262d13df896b0c624b0cec6e4bfde631a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+d14d202262d13df896b0c624b0cec6e4bfde631a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 16381b61dc564be35b2e095f770cae3aa46e38240c3e1f31a69e3856c6ed99d2
[INFO] running `Command { std: "docker" "start" "-a" "16381b61dc564be35b2e095f770cae3aa46e38240c3e1f31a69e3856c6ed99d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "16381b61dc564be35b2e095f770cae3aa46e38240c3e1f31a69e3856c6ed99d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "16381b61dc564be35b2e095f770cae3aa46e38240c3e1f31a69e3856c6ed99d2", kill_on_drop: false }`
[INFO] [stdout] 16381b61dc564be35b2e095f770cae3aa46e38240c3e1f31a69e3856c6ed99d2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+d14d202262d13df896b0c624b0cec6e4bfde631a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d31654201c866fa7e77b373d8161c88faae1b88f98530022cb62f572d72159fe
[INFO] running `Command { std: "docker" "start" "-a" "d31654201c866fa7e77b373d8161c88faae1b88f98530022cb62f572d72159fe", kill_on_drop: false }`
[INFO] [stderr]     Checking hackerank v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `combined`
[INFO] [stdout]   --> src/algorithm/acm_icpc_team.rs:12:17
[INFO] [stdout]    |
[INFO] [stdout] 12 |             let combined = a
[INFO] [stdout]    |                 ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_combined`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `combined`
[INFO] [stdout]   --> src/algorithm/acm_icpc_team.rs:12:17
[INFO] [stdout]    |
[INFO] [stdout] 12 |             let combined = a
[INFO] [stdout]    |                 ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_combined`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `acm_icpc_team` is never used
[INFO] [stdout]  --> src/algorithm/acm_icpc_team.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn acm_icpc_team(topic: &[String]) -> Vec<i32> {
[INFO] [stdout]   |    ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `anagram` is never used
[INFO] [stdout]  --> src/algorithm/anagram.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn anagram(s: &str) -> i32 {
[INFO] [stdout]   |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TrieNode` is never constructed
[INFO] [stdout]   --> src/algorithm/dna_health.rs:58:8
[INFO] [stdout]    |
[INFO] [stdout] 58 | struct TrieNode {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/algorithm/dna_health.rs:68:8
[INFO] [stdout]    |
[INFO] [stdout] 67 | impl TrieNode {
[INFO] [stdout]    | ------------- associated function in this implementation
[INFO] [stdout] 68 |     fn new() -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `AhoCorasick` is never constructed
[INFO] [stdout]   --> src/algorithm/dna_health.rs:81:8
[INFO] [stdout]    |
[INFO] [stdout] 81 | struct AhoCorasick {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `add_pattern`, `build_failure_links`, and `search` are never used
[INFO] [stdout]    --> src/algorithm/dna_health.rs:87:8
[INFO] [stdout]     |
[INFO] [stdout] 86  | impl AhoCorasick {
[INFO] [stdout]     | ---------------- associated items in this implementation
[INFO] [stdout] 87  |     fn new() -> Self {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 99  |     fn add_pattern(&mut self, pattern: &str, gene_index: usize, health_value: i64) {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 119 |     fn build_failure_links(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 164 |     fn search(&self, text: &str, start_gene: usize, end_gene: usize) -> i64 {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `dna_health` is never used
[INFO] [stdout]    --> src/algorithm/dna_health.rs:227:4
[INFO] [stdout]     |
[INFO] [stdout] 227 | fn dna_health(genes: Vec<String>, health: Vec<i64>, strands: Vec<(i32, i32, String)>) -> String {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parse_and_run_dna_health` is never used
[INFO] [stdout]    --> src/algorithm/dna_health.rs:260:8
[INFO] [stdout]     |
[INFO] [stdout] 260 | pub fn parse_and_run_dna_health(file_path: &str) -> std::io::Result<String> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `dna_health_naive` is never used
[INFO] [stdout]    --> src/algorithm/dna_health.rs:309:4
[INFO] [stdout]     |
[INFO] [stdout] 309 | fn dna_health_naive(
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `extra_long_factorials` is never used
[INFO] [stdout]  --> src/algorithm/extra_long_factorials.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn extra_long_factorials(n: i32) -> String {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `forming_magic_square` is never used
[INFO] [stdout]  --> src/algorithm/forming_magic_square.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn forming_magic_square(s: &[Vec<i32>]) -> i32 {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `game_of_thrones` is never used
[INFO] [stdout]  --> src/algorithm/game_of_thrones_i.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn game_of_thrones(s: &str) -> String {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `highest_value_palindrome` is never used
[INFO] [stdout]  --> src/algorithm/highest_value_palindrome.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn highest_value_palindrome(s: &str, n: i32, k: i32) -> String {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parse_and_run` is never used
[INFO] [stdout]   --> src/algorithm/highest_value_palindrome.rs:70:4
[INFO] [stdout]    |
[INFO] [stdout] 70 | fn parse_and_run(file_path: &str) -> Result<String> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `insertion_sort` is never used
[INFO] [stdout]  --> src/algorithm/insertion_sort_analysis.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn insertion_sort(arr: &[i32]) -> u64 {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `merge_sort_and_count` is never used
[INFO] [stdout]   --> src/algorithm/insertion_sort_analysis.rs:13:4
[INFO] [stdout]    |
[INFO] [stdout] 13 | fn merge_sort_and_count(arr: &mut [i32], start: usize, end: usize) -> u64 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `merge_and_count` is never used
[INFO] [stdout]   --> src/algorithm/insertion_sort_analysis.rs:28:4
[INFO] [stdout]    |
[INFO] [stdout] 28 | fn merge_and_count(arr: &mut [i32], start: usize, mid: usize, end: usize) -> u64 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parse_and_run` is never used
[INFO] [stdout]   --> src/algorithm/insertion_sort_analysis.rs:67:4
[INFO] [stdout]    |
[INFO] [stdout] 67 | fn parse_and_run(file_path: &str) -> Result<Vec<u64>> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `making_anagrams` is never used
[INFO] [stdout]  --> src/algorithm/making_anagram.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn making_anagrams(s1: &str, s2: &str) -> i32 {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `matrix_rotation` is never used
[INFO] [stdout]  --> src/algorithm/matrix_rotation.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn matrix_rotation(matrix: &[Vec<i32>], r: i32) -> Vec<Vec<i32>> {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `spiral_traversal` is never used
[INFO] [stdout]   --> src/algorithm/matrix_rotation.rs:23:4
[INFO] [stdout]    |
[INFO] [stdout] 23 | fn spiral_traversal<T: Clone>(matrix: Vec<Vec<T>>) -> Vec<Vec<T>> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MOD` is never used
[INFO] [stdout]   --> src/algorithm/maximum_palindromes.rs:24:7
[INFO] [stdout]    |
[INFO] [stdout] 24 | const MOD: i64 = 1000000007; // Required modulo value
[INFO] [stdout]    |       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `PREFIX_COUNTS` is never used
[INFO] [stdout]   --> src/algorithm/maximum_palindromes.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 | static mut PREFIX_COUNTS: Vec<Vec<i32>> = Vec::new();
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `FACTORIALS` is never used
[INFO] [stdout]   --> src/algorithm/maximum_palindromes.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 28 | static mut FACTORIALS: Vec<i64> = Vec::new();
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `INV_FACTORIALS` is never used
[INFO] [stdout]   --> src/algorithm/maximum_palindromes.rs:30:12
[INFO] [stdout]    |
[INFO] [stdout] 30 | static mut INV_FACTORIALS: Vec<i64> = Vec::new();
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `mod_pow` is never used
[INFO] [stdout]   --> src/algorithm/maximum_palindromes.rs:37:4
[INFO] [stdout]    |
[INFO] [stdout] 37 | fn mod_pow(base: i64, exp: i64, modulo: i64) -> i64 {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `mod_inverse` is never used
[INFO] [stdout]   --> src/algorithm/maximum_palindromes.rs:57:4
[INFO] [stdout]    |
[INFO] [stdout] 57 | fn mod_inverse(a: i64, modulo: i64) -> i64 {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `initialize` is never used
[INFO] [stdout]   --> src/algorithm/maximum_palindromes.rs:67:4
[INFO] [stdout]    |
[INFO] [stdout] 67 | fn initialize(s: &str) {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `answerQuery` is never used
[INFO] [stdout]    --> src/algorithm/maximum_palindromes.rs:128:4
[INFO] [stdout]     |
[INFO] [stdout] 128 | fn answerQuery(l: i32, r: i32) -> i32 {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]    --> src/algorithm/maximum_palindromes.rs:203:4
[INFO] [stdout]     |
[INFO] [stdout] 203 | fn main() {
[INFO] [stdout]     |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `palindrome_index` is never used
[INFO] [stdout]  --> src/algorithm/palindrome_index.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn palindrome_index(s: &str) -> i32 {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `queens_attack` is never used
[INFO] [stdout]  --> src/algorithm/queens_attack_ii.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn queens_attack(n: i32, _k: i32, r_q: i32, c_q: i32, obstacles: &[Vec<i32>]) -> i32 {
[INFO] [stdout]   |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `valid_string` is never used
[INFO] [stdout]  --> src/algorithm/sherlock_and_the_valid_string.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn valid_string(s: &str) -> String {
[INFO] [stdout]   |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SpiralData` is never constructed
[INFO] [stdout]  --> src/algorithm/spiral_data.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct SpiralData<T> {
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `from_matrix`, `slide`, `to_matrix`, and `to_matrix_unsafe` are never used
[INFO] [stdout]    --> src/algorithm/spiral_data.rs:10:12
[INFO] [stdout]     |
[INFO] [stdout] 9   | impl<T: Clone> SpiralData<T> {
[INFO] [stdout]     | ---------------------------- associated items in this implementation
[INFO] [stdout] 10  |     pub fn from_matrix(matrix: Vec<Vec<T>>) -> Self {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 80  |     pub fn slide(&mut self, r: usize) {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 88  |     pub fn to_matrix(&self) -> Vec<Vec<T>>
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 107 |     pub fn to_matrix_unsafe(&self) -> Vec<Vec<T>>
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `string_construction` is never used
[INFO] [stdout]  --> src/algorithm/string_construction.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn string_construction(s: &str) -> i32 {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `two_strings` is never used
[INFO] [stdout]  --> src/algorithm/two_strings.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn two_strings(s1: &str, s2: &str) -> String {
[INFO] [stdout]   |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `answerQuery` should have a snake case name
[INFO] [stdout]    --> src/algorithm/maximum_palindromes.rs:128:4
[INFO] [stdout]     |
[INFO] [stdout] 128 | fn answerQuery(l: i32, r: i32) -> i32 {
[INFO] [stdout]     |    ^^^^^^^^^^^ help: convert the identifier to snake case: `answer_query`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `forming_magic_square` is never used
[INFO] [stdout]  --> src/algorithm/forming_magic_square.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn forming_magic_square(s: &[Vec<i32>]) -> i32 {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `spiral_traversal` is never used
[INFO] [stdout]   --> src/algorithm/matrix_rotation.rs:23:4
[INFO] [stdout]    |
[INFO] [stdout] 23 | fn spiral_traversal<T: Clone>(matrix: Vec<Vec<T>>) -> Vec<Vec<T>> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MOD` is never used
[INFO] [stdout]   --> src/algorithm/maximum_palindromes.rs:24:7
[INFO] [stdout]    |
[INFO] [stdout] 24 | const MOD: i64 = 1000000007; // Required modulo value
[INFO] [stdout]    |       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `PREFIX_COUNTS` is never used
[INFO] [stdout]   --> src/algorithm/maximum_palindromes.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 | static mut PREFIX_COUNTS: Vec<Vec<i32>> = Vec::new();
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `FACTORIALS` is never used
[INFO] [stdout]   --> src/algorithm/maximum_palindromes.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 28 | static mut FACTORIALS: Vec<i64> = Vec::new();
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `INV_FACTORIALS` is never used
[INFO] [stdout]   --> src/algorithm/maximum_palindromes.rs:30:12
[INFO] [stdout]    |
[INFO] [stdout] 30 | static mut INV_FACTORIALS: Vec<i64> = Vec::new();
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `mod_pow` is never used
[INFO] [stdout]   --> src/algorithm/maximum_palindromes.rs:37:4
[INFO] [stdout]    |
[INFO] [stdout] 37 | fn mod_pow(base: i64, exp: i64, modulo: i64) -> i64 {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `mod_inverse` is never used
[INFO] [stdout]   --> src/algorithm/maximum_palindromes.rs:57:4
[INFO] [stdout]    |
[INFO] [stdout] 57 | fn mod_inverse(a: i64, modulo: i64) -> i64 {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `initialize` is never used
[INFO] [stdout]   --> src/algorithm/maximum_palindromes.rs:67:4
[INFO] [stdout]    |
[INFO] [stdout] 67 | fn initialize(s: &str) {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `answerQuery` is never used
[INFO] [stdout]    --> src/algorithm/maximum_palindromes.rs:128:4
[INFO] [stdout]     |
[INFO] [stdout] 128 | fn answerQuery(l: i32, r: i32) -> i32 {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]    --> src/algorithm/maximum_palindromes.rs:203:4
[INFO] [stdout]     |
[INFO] [stdout] 203 | fn main() {
[INFO] [stdout]     |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `to_matrix` is never used
[INFO] [stdout]   --> src/algorithm/spiral_data.rs:88:12
[INFO] [stdout]    |
[INFO] [stdout] 9  | impl<T: Clone> SpiralData<T> {
[INFO] [stdout]    | ---------------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 88 |     pub fn to_matrix(&self) -> Vec<Vec<T>>
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `answerQuery` should have a snake case name
[INFO] [stdout]    --> src/algorithm/maximum_palindromes.rs:128:4
[INFO] [stdout]     |
[INFO] [stdout] 128 | fn answerQuery(l: i32, r: i32) -> i32 {
[INFO] [stdout]     |    ^^^^^^^^^^^ help: convert the identifier to snake case: `answer_query`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.67s
[INFO] running `Command { std: "docker" "inspect" "d31654201c866fa7e77b373d8161c88faae1b88f98530022cb62f572d72159fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d31654201c866fa7e77b373d8161c88faae1b88f98530022cb62f572d72159fe", kill_on_drop: false }`
[INFO] [stdout] d31654201c866fa7e77b373d8161c88faae1b88f98530022cb62f572d72159fe