[INFO] cloning repository https://github.com/lassemand/hackerrank
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lassemand/hackerrank" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flassemand%2Fhackerrank", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flassemand%2Fhackerrank'...
[INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flassemand%2Fhackerrank: No space left on device
[WARN] Retrying crate fetch in 3 seconds (attempt 1)
[INFO] cloning repository https://github.com/lassemand/hackerrank
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lassemand/hackerrank" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flassemand%2Fhackerrank", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flassemand%2Fhackerrank'...
[INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flassemand%2Fhackerrank: No space left on device
[WARN] Retrying crate fetch in 3 seconds (attempt 2)
[INFO] cloning repository https://github.com/lassemand/hackerrank
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lassemand/hackerrank" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flassemand%2Fhackerrank", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flassemand%2Fhackerrank'...
[INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flassemand%2Fhackerrank: No space left on device
[WARN] Retrying crate fetch in 3 seconds (attempt 3)
[INFO] cloning repository https://github.com/lassemand/hackerrank
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lassemand/hackerrank" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flassemand%2Fhackerrank", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flassemand%2Fhackerrank'...
[INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flassemand%2Fhackerrank: No space left on device
[WARN] Retrying crate fetch in 3 seconds (attempt 4)
[INFO] cloning repository https://github.com/lassemand/hackerrank
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lassemand/hackerrank" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flassemand%2Fhackerrank", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flassemand%2Fhackerrank'...
[INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flassemand%2Fhackerrank: No space left on device
[WARN] Retrying crate fetch in 3 seconds (attempt 5)
[INFO] cloning repository https://github.com/lassemand/hackerrank
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lassemand/hackerrank" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flassemand%2Fhackerrank", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flassemand%2Fhackerrank'...
[INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flassemand%2Fhackerrank: No space left on device
[WARN] Retrying crate fetch in 3 seconds (attempt 6)
[INFO] cloning repository https://github.com/lassemand/hackerrank
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lassemand/hackerrank" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flassemand%2Fhackerrank", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flassemand%2Fhackerrank'...
[INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flassemand%2Fhackerrank: No space left on device
[WARN] Retrying crate fetch in 3 seconds (attempt 7)
[INFO] cloning repository https://github.com/lassemand/hackerrank
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lassemand/hackerrank" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flassemand%2Fhackerrank", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flassemand%2Fhackerrank'...
[INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flassemand%2Fhackerrank: No space left on device
[WARN] Retrying crate fetch in 3 seconds (attempt 8)
[INFO] cloning repository https://github.com/lassemand/hackerrank
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lassemand/hackerrank" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flassemand%2Fhackerrank", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flassemand%2Fhackerrank'...
[INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flassemand%2Fhackerrank: No space left on device
[WARN] Retrying crate fetch in 3 seconds (attempt 9)
[INFO] cloning repository https://github.com/lassemand/hackerrank
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lassemand/hackerrank" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flassemand%2Fhackerrank", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flassemand%2Fhackerrank'...
[INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flassemand%2Fhackerrank/refs: No space left on device
[WARN] Retrying crate fetch in 3 seconds (attempt 10)
[INFO] cloning repository https://github.com/lassemand/hackerrank
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lassemand/hackerrank" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flassemand%2Fhackerrank", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flassemand%2Fhackerrank'...
[INFO] [stderr] error: failed to write new configuration file /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flassemand%2Fhackerrank/config.lock
[INFO] [stderr] fatal: could not set 'core.repositoryformatversion' to '0'
[WARN] Retrying crate fetch in 3 seconds (attempt 11)
[INFO] cloning repository https://github.com/lassemand/hackerrank
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lassemand/hackerrank" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flassemand%2Fhackerrank", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flassemand%2Fhackerrank'...
[INFO] [stderr] error: failed to write new configuration file /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flassemand%2Fhackerrank/config.lock
[INFO] [stderr] fatal: could not set 'core.repositoryformatversion' to '0'
[WARN] Retrying crate fetch in 3 seconds (attempt 12)
[INFO] cloning repository https://github.com/lassemand/hackerrank
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lassemand/hackerrank" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flassemand%2Fhackerrank", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flassemand%2Fhackerrank'...
[INFO] [stderr] error: failed to write new configuration file /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flassemand%2Fhackerrank/config.lock
[INFO] [stderr] fatal: could not set 'core.repositoryformatversion' to '0'
[WARN] Retrying crate fetch in 3 seconds (attempt 13)
[INFO] cloning repository https://github.com/lassemand/hackerrank
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lassemand/hackerrank" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flassemand%2Fhackerrank", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flassemand%2Fhackerrank'...
[INFO] [stderr] error: failed to write new configuration file /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flassemand%2Fhackerrank/config.lock
[INFO] [stderr] fatal: could not set 'core.repositoryformatversion' to '0'
[WARN] Retrying crate fetch in 3 seconds (attempt 14)
[INFO] cloning repository https://github.com/lassemand/hackerrank
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lassemand/hackerrank" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flassemand%2Fhackerrank", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flassemand%2Fhackerrank'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f61669aa780e38b77db510f72811a8e6fdf6c3db
[INFO] testing lassemand/hackerrank against master#f9988fefd3add01f414f52b414308e7872622fee for pr-155114
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flassemand%2Fhackerrank" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/lassemand/hackerrank
[INFO] finished tweaking git repo https://github.com/lassemand/hackerrank
[INFO] tweaked toml for git repo https://github.com/lassemand/hackerrank written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/lassemand/hackerrank on toolchain f9988fefd3add01f414f52b414308e7872622fee
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f9988fefd3add01f414f52b414308e7872622fee" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/lassemand/hackerrank 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" "+f9988fefd3add01f414f52b414308e7872622fee" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+f9988fefd3add01f414f52b414308e7872622fee" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 99a1f18ad56bca02e3403d7fcd1fb6bfc47144ec0ccfb8e4117e86a064da3630
[INFO] running `Command { std: "docker" "start" "-a" "99a1f18ad56bca02e3403d7fcd1fb6bfc47144ec0ccfb8e4117e86a064da3630", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "99a1f18ad56bca02e3403d7fcd1fb6bfc47144ec0ccfb8e4117e86a064da3630", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "99a1f18ad56bca02e3403d7fcd1fb6bfc47144ec0ccfb8e4117e86a064da3630", kill_on_drop: false }`
[INFO] [stdout] 99a1f18ad56bca02e3403d7fcd1fb6bfc47144ec0ccfb8e4117e86a064da3630
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+f9988fefd3add01f414f52b414308e7872622fee" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0755e5927de9749f043202476472748d79f17178893dc6f0cd868c158be24a09
[INFO] running `Command { std: "docker" "start" "-a" "0755e5927de9749f043202476472748d79f17178893dc6f0cd868c158be24a09", kill_on_drop: false }`
[INFO] [stderr]    Compiling hackerrank v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::cmp::max`
[INFO] [stdout]  --> src/non_divisible_subset.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::cmp::max;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `A`
[INFO] [stdout]  --> src/hr_city.rs:1:20
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn hackerrank_city(A: &[i32]) -> i32 {
[INFO] [stdout]   |                    ^ help: if this is intentional, prefix it with an underscore: `_A`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `cost` is never used
[INFO] [stdout]  --> src/sherlock.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn cost(b: &[i32]) -> i32 {
[INFO] [stdout]   |    ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MOD` is never used
[INFO] [stdout]  --> src/construct.rs:1:7
[INFO] [stdout]   |
[INFO] [stdout] 1 | const MOD: i64 = 1_000_000_007;
[INFO] [stdout]   |       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `countArray` is never used
[INFO] [stdout]  --> src/construct.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn countArray(n: i32, k: i32, x: i32) -> i64 {
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `suffix_array` is never used
[INFO] [stdout]  --> src/palindromes.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn suffix_array(s: &[u8]) -> Vec<usize> {
[INFO] [stdout]   |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `lcp_array` is never used
[INFO] [stdout]   --> src/palindromes.rs:58:4
[INFO] [stdout]    |
[INFO] [stdout] 58 | fn lcp_array(s: &[u8], sa: &[usize]) -> Vec<usize> {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `max_value` is never used
[INFO] [stdout]   --> src/palindromes.rs:93:4
[INFO] [stdout]    |
[INFO] [stdout] 93 | fn max_value(t: &str) -> i64 {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `suffix_array` is never used
[INFO] [stdout]  --> src/strings.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn suffix_array(s: &[u8]) -> Vec<usize> {
[INFO] [stdout]   |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `lcp_array` is never used
[INFO] [stdout]   --> src/strings.rs:58:4
[INFO] [stdout]    |
[INFO] [stdout] 58 | fn lcp_array(s: &[u8], sa: &[usize]) -> Vec<usize> {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `max_value` is never used
[INFO] [stdout]   --> src/strings.rs:93:4
[INFO] [stdout]    |
[INFO] [stdout] 93 | fn max_value(t: &str) -> i64 {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `encryption` is never used
[INFO] [stdout]  --> src/encryption.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn encryption(s: &str) -> String {
[INFO] [stdout]   |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `biggerIsGreater` is never used
[INFO] [stdout]  --> src/bigger_is_greater.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn biggerIsGreater(w: &str) -> String {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `build_string_cost` is never used
[INFO] [stdout]  --> src/build_a_string.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn build_string_cost(n: usize, a: i32, b: i32, s: &str) -> i32 {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `maximum_sum` is never used
[INFO] [stdout]  --> src/maximum_subarray_sum.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn maximum_sum(a: &[i64], m: i64) -> i64 {
[INFO] [stdout]   |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `VISIT` is never used
[INFO] [stdout]  --> src/connected_cell_in_a_grid.rs:4:7
[INFO] [stdout]   |
[INFO] [stdout] 4 | const VISIT: [(i32, i32); 8] = [
[INFO] [stdout]   |       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `connectedCell` is never used
[INFO] [stdout]   --> src/connected_cell_in_a_grid.rs:11:4
[INFO] [stdout]    |
[INFO] [stdout] 11 | fn connectedCell(matrix: &[Vec<i32>]) -> i32 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MOD` is never used
[INFO] [stdout]  --> src/short_palindrome.rs:1:7
[INFO] [stdout]   |
[INFO] [stdout] 1 | const MOD: i64 = 1_000_000_007;
[INFO] [stdout]   |       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `pair_palindrome` is never used
[INFO] [stdout]  --> src/short_palindrome.rs:4:4
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn pair_palindrome(i: usize, j: usize, count: &Vec<[i32; 26]>) -> i64 {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `short_palindrome` is never used
[INFO] [stdout]   --> src/short_palindrome.rs:17:4
[INFO] [stdout]    |
[INFO] [stdout] 17 | fn short_palindrome(s: &str) -> i64 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `organizing_containers` is never used
[INFO] [stdout]  --> src/organizing_containers.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn organizing_containers(container: &[Vec<i32>]) -> String {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `kaprekar_numbers` is never used
[INFO] [stdout]  --> src/kaprekar_numbers.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn kaprekar_numbers(p: i32, q: i32) {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MOD` is never used
[INFO] [stdout]  --> src/kingdom_division.rs:1:7
[INFO] [stdout]   |
[INFO] [stdout] 1 | const MOD: i64 = 1_000_000_007;
[INFO] [stdout]   |       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `kingdom_division` is never used
[INFO] [stdout]  --> src/kingdom_division.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn kingdom_division(n: i32, roads: &[Vec<i32>]) -> i32 {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `from_u32` is never used
[INFO] [stdout]  --> src/fibonacci_modified.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn from_u32(mut x: u32) -> Vec<u8> {
[INFO] [stdout]   |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `trim` is never used
[INFO] [stdout]   --> src/fibonacci_modified.rs:13:4
[INFO] [stdout]    |
[INFO] [stdout] 13 | fn trim(v: &mut Vec<u8>) {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `add` is never used
[INFO] [stdout]   --> src/fibonacci_modified.rs:19:4
[INFO] [stdout]    |
[INFO] [stdout] 19 | fn add(a: &[u8], b: &[u8]) -> Vec<u8> {
[INFO] [stdout]    |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `square` is never used
[INFO] [stdout]   --> src/fibonacci_modified.rs:38:4
[INFO] [stdout]    |
[INFO] [stdout] 38 | fn square(a: &[u8]) -> Vec<u8> {
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `to_decimal` is never used
[INFO] [stdout]   --> src/fibonacci_modified.rs:68:4
[INFO] [stdout]    |
[INFO] [stdout] 68 | fn to_decimal(bytes: Vec<u8>) -> String {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `fibonacci_modified` is never used
[INFO] [stdout]   --> src/fibonacci_modified.rs:99:8
[INFO] [stdout]    |
[INFO] [stdout] 99 | pub fn fibonacci_modified(t1: u32, t2: u32, n: i32) -> String {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `abbreviation` is never used
[INFO] [stdout]  --> src/abbrevation.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn abbreviation(a: &str, b: &str) -> String {
[INFO] [stdout]   |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MOD` is never used
[INFO] [stdout]  --> src/sam_and_substrings.rs:1:7
[INFO] [stdout]   |
[INFO] [stdout] 1 | const MOD: i64 = 1_000_000_007;
[INFO] [stdout]   |       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `substrings` is never used
[INFO] [stdout]  --> src/sam_and_substrings.rs:2:4
[INFO] [stdout]   |
[INFO] [stdout] 2 | fn substrings(n: &str) -> i64 {
[INFO] [stdout]   |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MOD` is never used
[INFO] [stdout]  --> src/prime_xor.rs:1:7
[INFO] [stdout]   |
[INFO] [stdout] 1 | const MOD: usize = 1_000_000_007;
[INFO] [stdout]   |       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MAX_XOR` is never used
[INFO] [stdout]  --> src/prime_xor.rs:2:7
[INFO] [stdout]   |
[INFO] [stdout] 2 | const MAX_XOR: usize = 8192;
[INFO] [stdout]   |       ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MIN_VALUE` is never used
[INFO] [stdout]  --> src/prime_xor.rs:3:7
[INFO] [stdout]   |
[INFO] [stdout] 3 | const MIN_VALUE: usize = 3500;
[INFO] [stdout]   |       ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MAX_VALUE` is never used
[INFO] [stdout]  --> src/prime_xor.rs:4:7
[INFO] [stdout]   |
[INFO] [stdout] 4 | const MAX_VALUE: usize = 4500;
[INFO] [stdout]   |       ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `prime_xor` is never used
[INFO] [stdout]  --> src/prime_xor.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn prime_xor(a: Vec<usize>) -> usize {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `divisible_sum_pairs` is never used
[INFO] [stdout]  --> src/divisible_sum_pairs.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn divisible_sum_pairs(_: i32, k: usize, ar: &[usize]) -> i32 {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `fair_cut` is never used
[INFO] [stdout]  --> src/fair_cut.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn fair_cut(mut k: usize, arr: &[i32]) -> i64 {
[INFO] [stdout]   |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `plus_minus` is never used
[INFO] [stdout]  --> src/plus_minus.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn plus_minus(arr: &[i32]) {
[INFO] [stdout]   |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `migratory_birds` is never used
[INFO] [stdout]  --> src/migratory_birds.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn migratory_birds(arr: &[usize]) -> usize {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `kangaroo` is never used
[INFO] [stdout]  --> src/kangaroo.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn kangaroo(x1: i32, v1: i32, x2: i32, v2: i32) -> String {
[INFO] [stdout]   |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `number_to_str` is never used
[INFO] [stdout]  --> src/rust_in_words.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn number_to_str(v: i32) -> String {
[INFO] [stdout]   |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `time_in_words` is never used
[INFO] [stdout]   --> src/rust_in_words.rs:43:4
[INFO] [stdout]    |
[INFO] [stdout] 43 | fn time_in_words(h: i32, m: i32) -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `max_subarray` is never used
[INFO] [stdout]  --> src/maxsubarray.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn max_subarray(arr: &[i32]) -> Vec<i32> {
[INFO] [stdout]   |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `xor_and_sum` is never used
[INFO] [stdout]  --> src/xor_and_sum.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn xor_and_sum(mut a: String, b: String) -> i64 {
[INFO] [stdout]   |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `hackerrank_city` is never used
[INFO] [stdout]  --> src/hr_city.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn hackerrank_city(A: &[i32]) -> i32 {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `non_divisible_subset` is never used
[INFO] [stdout]  --> src/non_divisible_subset.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn non_divisible_subset(k: usize, arr: &[i32]) -> i32 {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `hackerrank` (bin "hackerrank"); 49 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   No space left on device (os error 28)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to parse process output: `/opt/rustwide/rustup-home/toolchains/f9988fefd3add01f414f52b414308e7872622fee/bin/rustc --crate-name hackerrank --edition=2021 src/main.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type bin --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values())' -C metadata=582992ff9e82af4c -C extra-filename=-355e3760abc32771 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --cap-lints=forbid` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "0755e5927de9749f043202476472748d79f17178893dc6f0cd868c158be24a09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0755e5927de9749f043202476472748d79f17178893dc6f0cd868c158be24a09", kill_on_drop: false }`
[INFO] [stdout] 0755e5927de9749f043202476472748d79f17178893dc6f0cd868c158be24a09
