[INFO] cloning repository https://github.com/rooksoto/Codewars-Rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rooksoto/Codewars-Rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frooksoto%2FCodewars-Rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frooksoto%2FCodewars-Rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c1d193223c8e1a0e6ab8ce9018e5c286afaccf5a
[INFO] checking rooksoto/Codewars-Rust against a621e2b446eafb53c7a8569f225e0b8cc2429a68 for pr-162600
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frooksoto%2FCodewars-Rust" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/rooksoto/Codewars-Rust
[INFO] finished tweaking git repo https://github.com/rooksoto/Codewars-Rust
[INFO] tweaked toml for git repo https://github.com/rooksoto/Codewars-Rust written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/rooksoto/Codewars-Rust on toolchain a621e2b446eafb53c7a8569f225e0b8cc2429a68
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a621e2b446eafb53c7a8569f225e0b8cc2429a68" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/rooksoto/Codewars-Rust 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" "+a621e2b446eafb53c7a8569f225e0b8cc2429a68" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: binary `codewars_rust` should have a kebab-case name
[INFO] [stderr]   |
[INFO] [stderr] 1 | /workspace/builds/worker-6-tc2/source/target/.../codewars_rust
[INFO] [stderr]   |                                                  ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `cargo::non_kebab_case_bins` is set to `warn` by default
[INFO] [stderr] help: to change the binary name to `codewars-rust`, convert `package.name`
[INFO] [stderr]  --> Cargo.toml:5:8
[INFO] [stderr]   |
[INFO] [stderr] 5 - name = "codewars_rust"
[INFO] [stderr] 5 + name = "codewars-rust"
[INFO] [stderr]   |
[INFO] [stderr] help: to change the binary name to `codewars-rust`, specify `bin.name`
[INFO] [stderr]  --> Cargo.toml:6:19
[INFO] [stderr]   |
[INFO] [stderr] 6 ~ version = "0.1.0"
[INFO] [stderr] 7 + [[bin]]
[INFO] [stderr] 8 + name = "codewars-rust"
[INFO] [stderr] 9 + path = "src/main.rs"
[INFO] [stderr]   |
[INFO] [stderr] warning: `codewars_rust` (manifest) generated 1 warning
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:8683fc1fc2eb5c9ac98e0d076ab094b2ffac7f99da555d2b6a2e27f346de2ec7" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] ad61476bdc7a85ca1e84ba512d8d739348011c65253a93e97718e2f3647314bc
[INFO] running `Command { std: "docker" "start" "ad61476bdc7a85ca1e84ba512d8d739348011c65253a93e97718e2f3647314bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ad61476bdc7a85ca1e84ba512d8d739348011c65253a93e97718e2f3647314bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "ad61476bdc7a85ca1e84ba512d8d739348011c65253a93e97718e2f3647314bc" "/opt/rustwide/cargo-home/bin/cargo" "+a621e2b446eafb53c7a8569f225e0b8cc2429a68" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ad61476bdc7a85ca1e84ba512d8d739348011c65253a93e97718e2f3647314bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "ad61476bdc7a85ca1e84ba512d8d739348011c65253a93e97718e2f3647314bc" "/opt/rustwide/cargo-home/bin/cargo" "+a621e2b446eafb53c7a8569f225e0b8cc2429a68" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] warning: binary `codewars_rust` should have a kebab-case name
[INFO] [stderr]   |
[INFO] [stderr] 1 | /opt/rustwide/target/.../codewars_rust
[INFO] [stderr]   |                          ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `cargo::non_kebab_case_bins` is set to `warn` by default
[INFO] [stderr] help: to change the binary name to `codewars-rust`, convert `package.name`
[INFO] [stderr]  --> Cargo.toml:5:8
[INFO] [stderr]   |
[INFO] [stderr] 5 - name = "codewars_rust"
[INFO] [stderr] 5 + name = "codewars-rust"
[INFO] [stderr]   |
[INFO] [stderr] help: to change the binary name to `codewars-rust`, specify `bin.name`
[INFO] [stderr]  --> Cargo.toml:6:19
[INFO] [stderr]   |
[INFO] [stderr] 6 ~ version = "0.1.0"
[INFO] [stderr] 7 + [[bin]]
[INFO] [stderr] 8 + name = "codewars-rust"
[INFO] [stderr] 9 + path = "src/main.rs"
[INFO] [stderr]   |
[INFO] [stderr] warning: `codewars_rust` (manifest) generated 1 warning
[INFO] [stderr]     Checking codewars_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variants `Kyu6`, `Kyu5`, `Kyu4`, `Kyu3`, `Kyu2`, and `Kyu1` are never constructed
[INFO] [stdout]   --> src/kyu.rs:7:5
[INFO] [stdout]    |
[INFO] [stdout]  4 | pub enum Kyu {
[INFO] [stdout]    |          --- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout]  7 |     Kyu6 = 6,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]  8 |     Kyu5 = 5,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]  9 |     Kyu4 = 4,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 10 |     Kyu3 = 3,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 11 |     Kyu2 = 2,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 12 |     Kyu1 = 1,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Kyu` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `bubblesort_once` is never used
[INFO] [stdout]  --> src/kyu7/bubblesort_once.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | impl BubblesortOnce {
[INFO] [stdout]   | ------------------- associated function in this implementation
[INFO] [stdout] 7 |     fn bubblesort_once(lst: &[u32]) -> Vec<u32> {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `sum_digits` is never used
[INFO] [stdout]  --> src/kyu7/summing_a_numbers_digits.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | impl SummingANumbersDigits {
[INFO] [stdout]   | -------------------------- associated function in this implementation
[INFO] [stdout] 7 |     fn sum_digits(number: i32) -> i32 {
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `vaporcode` is never used
[INFO] [stdout]  --> src/kyu7/vaporcode.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | impl Vaporcode {
[INFO] [stdout]   | -------------- associated function in this implementation
[INFO] [stdout] 7 |     fn vaporcode(s: &str) -> String {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `get_count` is never used
[INFO] [stdout]  --> src/kyu7/vowel_count.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | impl VowelCount {
[INFO] [stdout]   | --------------- associated function in this implementation
[INFO] [stdout] 7 |     fn get_count(string: &str) -> usize {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `last_chair` is never used
[INFO] [stdout]  --> src/kyu7/waiting_room.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | impl WaitingRoom {
[INFO] [stdout]   | ---------------- associated function in this implementation
[INFO] [stdout] 7 |     fn last_chair(n: u32) -> u32 {
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `count_positives_sum_negatives` is never used
[INFO] [stdout]  --> src/kyu8/count_of_positives_sum_of_negatives.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | impl CountOfPositivesSumOfNegatives {
[INFO] [stdout]   | ----------------------------------- associated function in this implementation
[INFO] [stdout] 7 |     fn count_positives_sum_negatives(input: Vec<i32>) -> Vec<i32> {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `invert` is never used
[INFO] [stdout]  --> src/kyu8/invert_values.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | impl InvertValues {
[INFO] [stdout]   | ----------------- associated function in this implementation
[INFO] [stdout] 7 |     fn invert(values: &[i32]) -> Vec<i32> {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `make_upper_case` is never used
[INFO] [stdout]  --> src/kyu8/make_upper_case.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | impl MakeUpperCase {
[INFO] [stdout]   | ------------------ associated function in this implementation
[INFO] [stdout] 7 |     fn make_upper_case(s: &str) -> String {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `multi_table` is never used
[INFO] [stdout]  --> src/kyu8/multiplication_table_for_number.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | impl MultiplicationTableForNumber {
[INFO] [stdout]   | --------------------------------- associated function in this implementation
[INFO] [stdout] 7 |     fn multi_table(n: u64) -> String {
[INFO] [stdout]   |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `opposite` is never used
[INFO] [stdout]  --> src/kyu8/opposite_number.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | impl OppositeNumber {
[INFO] [stdout]   | ------------------- associated function in this implementation
[INFO] [stdout] 7 |     fn opposite(number: i32) -> i32 {
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `plural` is never used
[INFO] [stdout]  --> src/kyu8/plural.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | impl Plural {
[INFO] [stdout]   | ----------- associated function in this implementation
[INFO] [stdout] 7 |     fn plural(n: f64) -> bool {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `quarter_of` is never used
[INFO] [stdout]  --> src/kyu8/quarter_of_the_year.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | impl QuarterOfTheYear {
[INFO] [stdout]   | --------------------- associated function in this implementation
[INFO] [stdout] 7 |     fn quarter_of(month: u8) -> u8 {
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `positive_sum` is never used
[INFO] [stdout]  --> src/kyu8/sum_of_positive.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | impl SumOfPositive {
[INFO] [stdout]   | ------------------ associated function in this implementation
[INFO] [stdout] 7 |     fn positive_sum(slice: &[i32]) -> i32 {
[INFO] [stdout]   |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `problem_description` is never used
[INFO] [stdout]  --> src/problem.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub trait Problem {
[INFO] [stdout]   |           ------- method in this trait
[INFO] [stdout] 4 |     fn problem_name(&self) -> &'static str;
[INFO] [stdout] 5 |     fn problem_description(&self) -> &'static str;
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Kyu6`, `Kyu5`, `Kyu4`, `Kyu3`, `Kyu2`, and `Kyu1` are never constructed
[INFO] [stdout]   --> src/kyu.rs:7:5
[INFO] [stdout]    |
[INFO] [stdout]  4 | pub enum Kyu {
[INFO] [stdout]    |          --- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout]  7 |     Kyu6 = 6,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]  8 |     Kyu5 = 5,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]  9 |     Kyu4 = 4,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 10 |     Kyu3 = 3,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 11 |     Kyu2 = 2,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 12 |     Kyu1 = 1,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Kyu` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `problem_description` is never used
[INFO] [stdout]  --> src/problem.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub trait Problem {
[INFO] [stdout]   |           ------- method in this trait
[INFO] [stdout] 4 |     fn problem_name(&self) -> &'static str;
[INFO] [stdout] 5 |     fn problem_description(&self) -> &'static str;
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.22s
[INFO] running `Command { std: "docker" "inspect" "ad61476bdc7a85ca1e84ba512d8d739348011c65253a93e97718e2f3647314bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad61476bdc7a85ca1e84ba512d8d739348011c65253a93e97718e2f3647314bc", kill_on_drop: false }`
[INFO] [stdout] ad61476bdc7a85ca1e84ba512d8d739348011c65253a93e97718e2f3647314bc
