[INFO] cloning repository https://github.com/is191021/Codewars
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/is191021/Codewars" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fis191021%2FCodewars", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fis191021%2FCodewars'...
[INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fis191021%2FCodewars: No space left on device
[WARN] Retrying crate fetch in 3 seconds (attempt 1)
[INFO] cloning repository https://github.com/is191021/Codewars
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/is191021/Codewars" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fis191021%2FCodewars", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fis191021%2FCodewars'...
[INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fis191021%2FCodewars: No space left on device
[WARN] Retrying crate fetch in 3 seconds (attempt 2)
[INFO] cloning repository https://github.com/is191021/Codewars
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/is191021/Codewars" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fis191021%2FCodewars", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fis191021%2FCodewars'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fdafd8f8f29c54d85414b4258de9dab759cc3208
[INFO] checking is191021/Codewars against master#068609ce766e55d2e7371cd2a86143a6d7e8e2e4 for pr-138952
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fis191021%2FCodewars" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/is191021/Codewars on toolchain 068609ce766e55d2e7371cd2a86143a6d7e8e2e4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+068609ce766e55d2e7371cd2a86143a6d7e8e2e4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/is191021/Codewars
[INFO] finished tweaking git repo https://github.com/is191021/Codewars
[INFO] tweaked toml for git repo https://github.com/is191021/Codewars written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/is191021/Codewars 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" "+068609ce766e55d2e7371cd2a86143a6d7e8e2e4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4b26683ee3c49f365255c425c23003cbf4366de097804722c29c5bbbee3624d2" "/opt/rustwide/cargo-home/bin/cargo" "+068609ce766e55d2e7371cd2a86143a6d7e8e2e4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 158695aae4462ac06e3ae73ee6ec718cbed345b216f2967bf91a25c593dee930
[INFO] running `Command { std: "docker" "start" "-a" "158695aae4462ac06e3ae73ee6ec718cbed345b216f2967bf91a25c593dee930", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "158695aae4462ac06e3ae73ee6ec718cbed345b216f2967bf91a25c593dee930", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "158695aae4462ac06e3ae73ee6ec718cbed345b216f2967bf91a25c593dee930", kill_on_drop: false }`
[INFO] [stdout] 158695aae4462ac06e3ae73ee6ec718cbed345b216f2967bf91a25c593dee930
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4b26683ee3c49f365255c425c23003cbf4366de097804722c29c5bbbee3624d2" "/opt/rustwide/cargo-home/bin/cargo" "+068609ce766e55d2e7371cd2a86143a6d7e8e2e4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 60234b1673481d161d9ecc9f2b9d589527ff6ffdee0eaae2a87d87e6310a1213
[INFO] running `Command { std: "docker" "start" "-a" "60234b1673481d161d9ecc9f2b9d589527ff6ffdee0eaae2a87d87e6310a1213", kill_on_drop: false }`
[INFO] [stderr]     Checking codewars v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `East`, `North`, `South`, and `West`
[INFO] [stdout]  --> src/main.rs:2:24
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::Direction::{North, South, East, West};
[INFO] [stdout]   |                        ^^^^^  ^^^^^  ^^^^  ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/main.rs:97:27
[INFO] [stdout]    |
[INFO] [stdout] 97 | fn helper (h: u64) -> Vec<(u64)>{
[INFO] [stdout]    |                           ^   ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 97 - fn helper (h: u64) -> Vec<(u64)>{
[INFO] [stdout] 97 + fn helper (h: u64) -> Vec<u64>{
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/main.rs:122:11
[INFO] [stdout]     |
[INFO] [stdout] 122 |         if(h == 0){
[INFO] [stdout]     |           ^      ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 122 -         if(h == 0){
[INFO] [stdout] 122 +         if h == 0 {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/main.rs:129:7
[INFO] [stdout]     |
[INFO] [stdout] 129 |     if(h != 0){
[INFO] [stdout]     |       ^      ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 129 -     if(h != 0){
[INFO] [stdout] 129 +     if h != 0 {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/main.rs:144:11
[INFO] [stdout]     |
[INFO] [stdout] 144 |         if(word.len() != words[ii].len()){
[INFO] [stdout]     |           ^                             ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 144 -         if(word.len() != words[ii].len()){
[INFO] [stdout] 144 +         if word.len() != words[ii].len() {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/main.rs:148:14
[INFO] [stdout]     |
[INFO] [stdout] 148 | ... if(word.chars().filter(|x| *x==word.chars().nth(jj).unwrap()).count() != words[ii].chars().filter(|x| *x==word.chars().nth(jj).unwrap()).count()){
[INFO] [stdout]     |       ^                                                                                                                                             ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 148 -            if(word.chars().filter(|x| *x==word.chars().nth(jj).unwrap()).count() != words[ii].chars().filter(|x| *x==word.chars().nth(jj).unwrap()).count()){
[INFO] [stdout] 148 +            if word.chars().filter(|x| *x==word.chars().nth(jj).unwrap()).count() != words[ii].chars().filter(|x| *x==word.chars().nth(jj).unwrap()).count() {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/main.rs:223:7
[INFO] [stdout]     |
[INFO] [stdout] 223 |     if(!str.is_empty()){
[INFO] [stdout]     |       ^               ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 223 -     if(!str.is_empty()){
[INFO] [stdout] 223 +     if !str.is_empty() {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `East`, `North`, `South`, and `West`
[INFO] [stdout]  --> src/main.rs:2:24
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::Direction::{North, South, East, West};
[INFO] [stdout]   |                        ^^^^^  ^^^^^  ^^^^  ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/main.rs:97:27
[INFO] [stdout]    |
[INFO] [stdout] 97 | fn helper (h: u64) -> Vec<(u64)>{
[INFO] [stdout]    |                           ^   ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 97 - fn helper (h: u64) -> Vec<(u64)>{
[INFO] [stdout] 97 + fn helper (h: u64) -> Vec<u64>{
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/main.rs:122:11
[INFO] [stdout]     |
[INFO] [stdout] 122 |         if(h == 0){
[INFO] [stdout]     |           ^      ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 122 -         if(h == 0){
[INFO] [stdout] 122 +         if h == 0 {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/main.rs:129:7
[INFO] [stdout]     |
[INFO] [stdout] 129 |     if(h != 0){
[INFO] [stdout]     |       ^      ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 129 -     if(h != 0){
[INFO] [stdout] 129 +     if h != 0 {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/main.rs:144:11
[INFO] [stdout]     |
[INFO] [stdout] 144 |         if(word.len() != words[ii].len()){
[INFO] [stdout]     |           ^                             ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 144 -         if(word.len() != words[ii].len()){
[INFO] [stdout] 144 +         if word.len() != words[ii].len() {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/main.rs:148:14
[INFO] [stdout]     |
[INFO] [stdout] 148 | ... if(word.chars().filter(|x| *x==word.chars().nth(jj).unwrap()).count() != words[ii].chars().filter(|x| *x==word.chars().nth(jj).unwrap()).count()){
[INFO] [stdout]     |       ^                                                                                                                                             ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 148 -            if(word.chars().filter(|x| *x==word.chars().nth(jj).unwrap()).count() != words[ii].chars().filter(|x| *x==word.chars().nth(jj).unwrap()).count()){
[INFO] [stdout] 148 +            if word.chars().filter(|x| *x==word.chars().nth(jj).unwrap()).count() != words[ii].chars().filter(|x| *x==word.chars().nth(jj).unwrap()).count() {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/main.rs:223:7
[INFO] [stdout]     |
[INFO] [stdout] 223 |     if(!str.is_empty()){
[INFO] [stdout]     |       ^               ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 223 -     if(!str.is_empty()){
[INFO] [stdout] 223 +     if !str.is_empty() {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:55:9
[INFO] [stdout]    |
[INFO] [stdout] 55 |     let mut print :Vec<char> = s.chars().collect();
[INFO] [stdout]    |         ----^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:55:9
[INFO] [stdout]    |
[INFO] [stdout] 55 |     let mut print :Vec<char> = s.chars().collect();
[INFO] [stdout]    |         ----^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `square` is never read
[INFO] [stdout]   --> src/main.rs:86:13
[INFO] [stdout]    |
[INFO] [stdout] 86 |     let mut square :Vec<u64> = vec![];
[INFO] [stdout]    |             ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `square` is never read
[INFO] [stdout]   --> src/main.rs:86:13
[INFO] [stdout]    |
[INFO] [stdout] 86 |     let mut square :Vec<u64> = vec![];
[INFO] [stdout]    |             ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ii`
[INFO] [stdout]    --> src/main.rs:132:13
[INFO] [stdout]     |
[INFO] [stdout] 132 |         for ii in 0..3{
[INFO] [stdout]     |             ^^ help: if this is intentional, prefix it with an underscore: `_ii`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ii`
[INFO] [stdout]    --> src/main.rs:132:13
[INFO] [stdout]     |
[INFO] [stdout] 132 |         for ii in 0..3{
[INFO] [stdout]     |             ^^ help: if this is intentional, prefix it with an underscore: `_ii`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `check` is never read
[INFO] [stdout]    --> src/main.rs:141:13
[INFO] [stdout]     |
[INFO] [stdout] 141 |     let mut check =true;
[INFO] [stdout]     |             ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `check` is never read
[INFO] [stdout]    --> src/main.rs:141:13
[INFO] [stdout]     |
[INFO] [stdout] 141 |     let mut check =true;
[INFO] [stdout]     |             ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ii`
[INFO] [stdout]    --> src/main.rs:312:9
[INFO] [stdout]     |
[INFO] [stdout] 312 |     for ii in 1..n {
[INFO] [stdout]     |         ^^ help: if this is intentional, prefix it with an underscore: `_ii`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ii`
[INFO] [stdout]    --> src/main.rs:312:9
[INFO] [stdout]     |
[INFO] [stdout] 312 |     for ii in 1..n {
[INFO] [stdout]     |         ^^ help: if this is intentional, prefix it with an underscore: `_ii`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `dna_strand` is never used
[INFO] [stdout]   --> src/main.rs:35:4
[INFO] [stdout]    |
[INFO] [stdout] 35 | fn dna_strand(dna: &str) -> String {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `printer_error` is never used
[INFO] [stdout]   --> src/main.rs:53:4
[INFO] [stdout]    |
[INFO] [stdout] 53 | fn printer_error(s: &str) -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `delete_nth` is never used
[INFO] [stdout]   --> src/main.rs:69:4
[INFO] [stdout]    |
[INFO] [stdout] 69 | fn delete_nth(lst: &[u8], n: usize) -> Vec<u8> {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `list_squared` is never used
[INFO] [stdout]   --> src/main.rs:84:4
[INFO] [stdout]    |
[INFO] [stdout] 84 | fn list_squared(m: u64, n: u64) -> Vec<(u64, u64)> {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `helper` is never used
[INFO] [stdout]   --> src/main.rs:97:4
[INFO] [stdout]    |
[INFO] [stdout] 97 | fn helper (h: u64) -> Vec<(u64)>{
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `expanded_form` is never used
[INFO] [stdout]    --> src/main.rs:110:4
[INFO] [stdout]     |
[INFO] [stdout] 110 | fn expanded_form(n: u64) -> String {
[INFO] [stdout]     |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `anagrams` is never used
[INFO] [stdout]    --> src/main.rs:139:4
[INFO] [stdout]     |
[INFO] [stdout] 139 | fn anagrams(word: &str, words: &[String]) -> Vec<String> {
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sum_pairs` is never used
[INFO] [stdout]    --> src/main.rs:160:4
[INFO] [stdout]     |
[INFO] [stdout] 160 | fn sum_pairs(ints: &[i8], s: i8) -> Option<(i8, i8)> {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `gap` is never used
[INFO] [stdout]    --> src/main.rs:182:4
[INFO] [stdout]     |
[INFO] [stdout] 182 | fn gap(g: i32, m: u64, n: u64) -> Option<(u64, u64)> {
[INFO] [stdout]     |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `primechecker` is never used
[INFO] [stdout]    --> src/main.rs:201:4
[INFO] [stdout]     |
[INFO] [stdout] 201 | fn primechecker(m: u64) -> bool{
[INFO] [stdout]     |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `order` is never used
[INFO] [stdout]    --> src/main.rs:210:4
[INFO] [stdout]     |
[INFO] [stdout] 210 | fn order(sentence: &str) -> String {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Direction` is never used
[INFO] [stdout]    --> src/main.rs:230:6
[INFO] [stdout]     |
[INFO] [stdout] 230 | enum Direction {
[INFO] [stdout]     |      ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `dir_reduc` is never used
[INFO] [stdout]    --> src/main.rs:237:4
[INFO] [stdout]     |
[INFO] [stdout] 237 | fn dir_reduc(arr: &[Direction]) -> Vec<Direction> {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `song_decoder` is never used
[INFO] [stdout]    --> src/main.rs:259:4
[INFO] [stdout]     |
[INFO] [stdout] 259 | fn song_decoder(song: &str) -> String {
[INFO] [stdout]     |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `play_pass` is never used
[INFO] [stdout]    --> src/main.rs:286:4
[INFO] [stdout]     |
[INFO] [stdout] 286 | fn play_pass(s: &str, n: u32) -> String {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `shift_help` is never used
[INFO] [stdout]    --> src/main.rs:299:4
[INFO] [stdout]     |
[INFO] [stdout] 299 | fn shift_help(s: char, n: u32) -> char{
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `perimeter` is never used
[INFO] [stdout]    --> src/main.rs:309:4
[INFO] [stdout]     |
[INFO] [stdout] 309 | fn perimeter(n: u64) -> u64 {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `dsum` is never used
[INFO] [stdout]    --> src/main.rs:318:4
[INFO] [stdout]     |
[INFO] [stdout] 318 | fn dsum(mut n: u64) -> u64 {
[INFO] [stdout]     |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `next_smaller_number` is never used
[INFO] [stdout]    --> src/main.rs:327:4
[INFO] [stdout]     |
[INFO] [stdout] 327 | fn next_smaller_number(n: u64) -> Option<u64> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `rot13` is never used
[INFO] [stdout]    --> src/main.rs:363:4
[INFO] [stdout]     |
[INFO] [stdout] 363 | fn rot13(message: &str) -> String {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Name` is never used
[INFO] [stdout]    --> src/main.rs:378:6
[INFO] [stdout]     |
[INFO] [stdout] 378 | enum Name { Sheldon, Leonard, Penny, Rajesh, Howard }
[INFO] [stdout]     |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Names` is never used
[INFO] [stdout]    --> src/main.rs:381:6
[INFO] [stdout]     |
[INFO] [stdout] 381 | type Names = Vec<Name>;
[INFO] [stdout]     |      ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `who_is_next` is never used
[INFO] [stdout]    --> src/main.rs:384:4
[INFO] [stdout]     |
[INFO] [stdout] 384 | fn who_is_next(names: &Names, n: usize) -> Name {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `josephus_survivor` is never used
[INFO] [stdout]    --> src/main.rs:396:4
[INFO] [stdout]     |
[INFO] [stdout] 396 | fn josephus_survivor(n: i32, k: i32) -> i32 {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `newMessage` should have a snake case name
[INFO] [stdout]    --> src/main.rs:364:13
[INFO] [stdout]     |
[INFO] [stdout] 364 |     let mut newMessage = "".to_string();
[INFO] [stdout]     |             ^^^^^^^^^^ help: convert the identifier to snake case: `new_message`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `dna_strand` is never used
[INFO] [stdout]   --> src/main.rs:35:4
[INFO] [stdout]    |
[INFO] [stdout] 35 | fn dna_strand(dna: &str) -> String {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `printer_error` is never used
[INFO] [stdout]   --> src/main.rs:53:4
[INFO] [stdout]    |
[INFO] [stdout] 53 | fn printer_error(s: &str) -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `delete_nth` is never used
[INFO] [stdout]   --> src/main.rs:69:4
[INFO] [stdout]    |
[INFO] [stdout] 69 | fn delete_nth(lst: &[u8], n: usize) -> Vec<u8> {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `list_squared` is never used
[INFO] [stdout]   --> src/main.rs:84:4
[INFO] [stdout]    |
[INFO] [stdout] 84 | fn list_squared(m: u64, n: u64) -> Vec<(u64, u64)> {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `helper` is never used
[INFO] [stdout]   --> src/main.rs:97:4
[INFO] [stdout]    |
[INFO] [stdout] 97 | fn helper (h: u64) -> Vec<(u64)>{
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `expanded_form` is never used
[INFO] [stdout]    --> src/main.rs:110:4
[INFO] [stdout]     |
[INFO] [stdout] 110 | fn expanded_form(n: u64) -> String {
[INFO] [stdout]     |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `anagrams` is never used
[INFO] [stdout]    --> src/main.rs:139:4
[INFO] [stdout]     |
[INFO] [stdout] 139 | fn anagrams(word: &str, words: &[String]) -> Vec<String> {
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sum_pairs` is never used
[INFO] [stdout]    --> src/main.rs:160:4
[INFO] [stdout]     |
[INFO] [stdout] 160 | fn sum_pairs(ints: &[i8], s: i8) -> Option<(i8, i8)> {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `gap` is never used
[INFO] [stdout]    --> src/main.rs:182:4
[INFO] [stdout]     |
[INFO] [stdout] 182 | fn gap(g: i32, m: u64, n: u64) -> Option<(u64, u64)> {
[INFO] [stdout]     |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `primechecker` is never used
[INFO] [stdout]    --> src/main.rs:201:4
[INFO] [stdout]     |
[INFO] [stdout] 201 | fn primechecker(m: u64) -> bool{
[INFO] [stdout]     |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `order` is never used
[INFO] [stdout]    --> src/main.rs:210:4
[INFO] [stdout]     |
[INFO] [stdout] 210 | fn order(sentence: &str) -> String {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Direction` is never used
[INFO] [stdout]    --> src/main.rs:230:6
[INFO] [stdout]     |
[INFO] [stdout] 230 | enum Direction {
[INFO] [stdout]     |      ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `dir_reduc` is never used
[INFO] [stdout]    --> src/main.rs:237:4
[INFO] [stdout]     |
[INFO] [stdout] 237 | fn dir_reduc(arr: &[Direction]) -> Vec<Direction> {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `song_decoder` is never used
[INFO] [stdout]    --> src/main.rs:259:4
[INFO] [stdout]     |
[INFO] [stdout] 259 | fn song_decoder(song: &str) -> String {
[INFO] [stdout]     |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `play_pass` is never used
[INFO] [stdout]    --> src/main.rs:286:4
[INFO] [stdout]     |
[INFO] [stdout] 286 | fn play_pass(s: &str, n: u32) -> String {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `shift_help` is never used
[INFO] [stdout]    --> src/main.rs:299:4
[INFO] [stdout]     |
[INFO] [stdout] 299 | fn shift_help(s: char, n: u32) -> char{
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `perimeter` is never used
[INFO] [stdout]    --> src/main.rs:309:4
[INFO] [stdout]     |
[INFO] [stdout] 309 | fn perimeter(n: u64) -> u64 {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `dsum` is never used
[INFO] [stdout]    --> src/main.rs:318:4
[INFO] [stdout]     |
[INFO] [stdout] 318 | fn dsum(mut n: u64) -> u64 {
[INFO] [stdout]     |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `next_smaller_number` is never used
[INFO] [stdout]    --> src/main.rs:327:4
[INFO] [stdout]     |
[INFO] [stdout] 327 | fn next_smaller_number(n: u64) -> Option<u64> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `rot13` is never used
[INFO] [stdout]    --> src/main.rs:363:4
[INFO] [stdout]     |
[INFO] [stdout] 363 | fn rot13(message: &str) -> String {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Name` is never used
[INFO] [stdout]    --> src/main.rs:378:6
[INFO] [stdout]     |
[INFO] [stdout] 378 | enum Name { Sheldon, Leonard, Penny, Rajesh, Howard }
[INFO] [stdout]     |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Names` is never used
[INFO] [stdout]    --> src/main.rs:381:6
[INFO] [stdout]     |
[INFO] [stdout] 381 | type Names = Vec<Name>;
[INFO] [stdout]     |      ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `who_is_next` is never used
[INFO] [stdout]    --> src/main.rs:384:4
[INFO] [stdout]     |
[INFO] [stdout] 384 | fn who_is_next(names: &Names, n: usize) -> Name {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `josephus_survivor` is never used
[INFO] [stdout]    --> src/main.rs:396:4
[INFO] [stdout]     |
[INFO] [stdout] 396 | fn josephus_survivor(n: i32, k: i32) -> i32 {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `newMessage` should have a snake case name
[INFO] [stdout]    --> src/main.rs:364:13
[INFO] [stdout]     |
[INFO] [stdout] 364 |     let mut newMessage = "".to_string();
[INFO] [stdout]     |             ^^^^^^^^^^ help: convert the identifier to snake case: `new_message`
[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 0.14s
[INFO] running `Command { std: "docker" "inspect" "60234b1673481d161d9ecc9f2b9d589527ff6ffdee0eaae2a87d87e6310a1213", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "60234b1673481d161d9ecc9f2b9d589527ff6ffdee0eaae2a87d87e6310a1213", kill_on_drop: false }`
[INFO] [stdout] 60234b1673481d161d9ecc9f2b9d589527ff6ffdee0eaae2a87d87e6310a1213