[INFO] cloning repository https://github.com/IndianBoy42/codewars
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/IndianBoy42/codewars" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FIndianBoy42%2Fcodewars", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FIndianBoy42%2Fcodewars'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 184edd3ca283bf7a3f920630442310fff46c5ea0
[INFO] checking IndianBoy42/codewars against master#7606c13961ddc1174b70638e934df0439b7dc515 for pr-121979
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FIndianBoy42%2Fcodewars" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/IndianBoy42/codewars on toolchain 7606c13961ddc1174b70638e934df0439b7dc515
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7606c13961ddc1174b70638e934df0439b7dc515" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/IndianBoy42/codewars
[INFO] finished tweaking git repo https://github.com/IndianBoy42/codewars
[INFO] tweaked toml for git repo https://github.com/IndianBoy42/codewars written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/IndianBoy42/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" "+7606c13961ddc1174b70638e934df0439b7dc515" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[ERROR] this task or one of its parent failed!
[ERROR] no output for 300 seconds
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] checking IndianBoy42/codewars against try#ae973628c64ab60398819bcc1fd9f08ae68ad5b5 for pr-121979
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FIndianBoy42%2Fcodewars" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/IndianBoy42/codewars on toolchain ae973628c64ab60398819bcc1fd9f08ae68ad5b5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ae973628c64ab60398819bcc1fd9f08ae68ad5b5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/IndianBoy42/codewars
[INFO] finished tweaking git repo https://github.com/IndianBoy42/codewars
[INFO] tweaked toml for git repo https://github.com/IndianBoy42/codewars written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/IndianBoy42/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" "+ae973628c64ab60398819bcc1fd9f08ae68ad5b5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking IndianBoy42/codewars against try#ae973628c64ab60398819bcc1fd9f08ae68ad5b5 for pr-121979
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FIndianBoy42%2Fcodewars" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/IndianBoy42/codewars on toolchain ae973628c64ab60398819bcc1fd9f08ae68ad5b5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ae973628c64ab60398819bcc1fd9f08ae68ad5b5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/IndianBoy42/codewars
[INFO] finished tweaking git repo https://github.com/IndianBoy42/codewars
[INFO] tweaked toml for git repo https://github.com/IndianBoy42/codewars written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/IndianBoy42/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" "+ae973628c64ab60398819bcc1fd9f08ae68ad5b5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ae973628c64ab60398819bcc1fd9f08ae68ad5b5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1deecf02e77de147069837c74e5b6292347d6d5b8bc55a86562a994cfe5bc546
[INFO] running `Command { std: "docker" "start" "-a" "1deecf02e77de147069837c74e5b6292347d6d5b8bc55a86562a994cfe5bc546", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1deecf02e77de147069837c74e5b6292347d6d5b8bc55a86562a994cfe5bc546", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1deecf02e77de147069837c74e5b6292347d6d5b8bc55a86562a994cfe5bc546", kill_on_drop: false }`
[INFO] [stdout] 1deecf02e77de147069837c74e5b6292347d6d5b8bc55a86562a994cfe5bc546
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ae973628c64ab60398819bcc1fd9f08ae68ad5b5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 769b857d0c122864a8662dea5b57000254ab1a5940ed141ea15c32c35c4f17c9
[INFO] running `Command { std: "docker" "start" "-a" "769b857d0c122864a8662dea5b57000254ab1a5940ed141ea15c32c35c4f17c9", kill_on_drop: false }`
[INFO] [stderr]     Checking codewars v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/going_to_zero_inf.rs:34:13
[INFO] [stdout]    |
[INFO] [stdout] 34 |             (actual.abs() <= merr)
[INFO] [stdout]    |             ^                    ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 34 -             (actual.abs() <= merr)
[INFO] [stdout] 34 +             actual.abs() <= merr
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/going_to_zero_inf.rs:36:13
[INFO] [stdout]    |
[INFO] [stdout] 36 |             ((actual - expected).abs() / expected <= merr)
[INFO] [stdout]    |             ^                                            ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 36 -             ((actual - expected).abs() / expected <= merr)
[INFO] [stdout] 36 +             (actual - expected).abs() / expected <= merr
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `encoded`
[INFO] [stdout]   --> src/decode_morse.rs:10:31
[INFO] [stdout]    |
[INFO] [stdout] 10 |     pub fn decode_bits(&self, encoded: &str) -> String {
[INFO] [stdout]    |                               ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_encoded`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `encoded`
[INFO] [stdout]   --> src/decode_morse.rs:16:32
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn decode_morse(&self, encoded: &str) -> String {
[INFO] [stdout]    |                                ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_encoded`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `swap_lt` is never used
[INFO] [stdout]  --> src/sq_in_rect.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn swap_lt(a: i32, b: i32) -> (i32, i32) {
[INFO] [stdout]   |    ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sq_in_rect` is never used
[INFO] [stdout]  --> src/sq_in_rect.rs:5:4
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn sq_in_rect(length: i32, width: i32) -> Option<Vec<i32>> {
[INFO] [stdout]   |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sq_in_rect2` is never used
[INFO] [stdout]   --> src/sq_in_rect.rs:29:4
[INFO] [stdout]    |
[INFO] [stdout] 29 | fn sq_in_rect2(length: i32, width: i32) -> Option<Vec<i32>> {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `testing` is never used
[INFO] [stdout]   --> src/sq_in_rect.rs:46:4
[INFO] [stdout]    |
[INFO] [stdout] 46 | fn testing(lng: i32, wdth: i32, exp: Option<Vec<i32>>) -> () {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `nth_odd` is never used
[INFO] [stdout]  --> src/row_sum_odd_numbers.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn nth_odd(n: i64) -> i64 {
[INFO] [stdout]   |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `row_sum_odd_numbers2` is never used
[INFO] [stdout]  --> src/row_sum_odd_numbers.rs:5:4
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn row_sum_odd_numbers2(n: i64) -> i64 {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sum_n_even_numbers` is never used
[INFO] [stdout]  --> src/row_sum_odd_numbers.rs:9:4
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn sum_n_even_numbers(n: i64) -> i64 {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `row_sum_odd_numbers` is never used
[INFO] [stdout]   --> src/row_sum_odd_numbers.rs:13:4
[INFO] [stdout]    |
[INFO] [stdout] 13 | fn row_sum_odd_numbers(n: i64) -> i64 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `duplicate_encode` is never used
[INFO] [stdout]  --> src/duplicate_encode.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn duplicate_encode(word: &str) -> String {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `rot` is never used
[INFO] [stdout]  --> src/play_pass.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn rot(ch: u8, base: u8, len: u8, n: u8) -> u8 {
[INFO] [stdout]   |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `play_pass` is never used
[INFO] [stdout]  --> src/play_pass.rs:4:4
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn play_pass(s: &str, n: u32) -> String {
[INFO] [stdout]   |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `order` is never used
[INFO] [stdout]  --> src/order.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn order(sentence: &str) -> String {
[INFO] [stdout]   |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `digits` is never used
[INFO] [stdout]  --> src/num_as_roman.rs:2:4
[INFO] [stdout]   |
[INFO] [stdout] 2 | fn digits(num: i32) -> [i32; 10] {
[INFO] [stdout]   |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `num_as_roman` is never used
[INFO] [stdout]   --> src/num_as_roman.rs:11:4
[INFO] [stdout]    |
[INFO] [stdout] 11 | fn num_as_roman(num: i32) -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Sheldon`, `Leonard`, `Penny`, `Rajesh`, and `Howard` are never constructed
[INFO] [stdout]  --> src/who_is_next.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | enum Name {
[INFO] [stdout]   |      ---- variants in this enum
[INFO] [stdout] 4 |     Sheldon,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 5 |     Leonard,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 6 |     Penny,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 7 |     Rajesh,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout] 8 |     Howard,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Name` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Names` is never used
[INFO] [stdout]   --> src/who_is_next.rs:12:6
[INFO] [stdout]    |
[INFO] [stdout] 12 | type Names = Vec<Name>;
[INFO] [stdout]    |      ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `generation` is never used
[INFO] [stdout]   --> src/who_is_next.rs:14:4
[INFO] [stdout]    |
[INFO] [stdout] 14 | fn generation(n: usize) -> (usize, usize, usize) {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `who_is_next` is never used
[INFO] [stdout]   --> src/who_is_next.rs:28:4
[INFO] [stdout]    |
[INFO] [stdout] 28 | fn who_is_next(_names: &Names, n: usize) -> Name {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `encrypt_this` is never used
[INFO] [stdout]  --> src/encrypt_this.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn encrypt_this(text: &str) -> String {
[INFO] [stdout]   |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `range_extraction` is never used
[INFO] [stdout]  --> src/range_extraction.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 |     pub fn range_extraction(a: &[i32]) -> String {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `decompose` is never used
[INFO] [stdout]  --> src/decompose.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn decompose(n: i64) -> Option<Vec<i64>> {
[INFO] [stdout]   |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `testing` is never used
[INFO] [stdout]   --> src/decompose.rs:22:4
[INFO] [stdout]    |
[INFO] [stdout] 22 | fn testing(n: i64, exp: Option<Vec<i64>>) -> () {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `rgb` is never used
[INFO] [stdout]  --> src/rgb_to_hex.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn rgb(r: i32, g: i32, b: i32) -> String {
[INFO] [stdout]   |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `prod_merge` is never used
[INFO] [stdout]  --> src/integer_partitions.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn prod_merge(a: BTreeSet<i64>, b: &BTreeSet<i64>) -> BTreeSet<i64> {
[INFO] [stdout]   |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `prod_one` is never used
[INFO] [stdout]   --> src/integer_partitions.rs:11:4
[INFO] [stdout]    |
[INFO] [stdout] 11 | fn prod_one(v: &Vec<BTreeSet<i64>>, n: i64) -> BTreeSet<i64> {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `prod` is never used
[INFO] [stdout]   --> src/integer_partitions.rs:28:4
[INFO] [stdout]    |
[INFO] [stdout] 28 | fn prod(n: i64) -> Vec<i64> {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `part` is never used
[INFO] [stdout]   --> src/integer_partitions.rs:39:4
[INFO] [stdout]    |
[INFO] [stdout] 39 | fn part(n: i64) -> String {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `doubles` is never used
[INFO] [stdout]  --> src/magnet_particules.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn doubles(maxk: i32, maxn: i32) -> f64 {
[INFO] [stdout]   |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MorseDecoder` is never constructed
[INFO] [stdout]  --> src/decode_morse.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct MorseDecoder;
[INFO] [stdout]   |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]  --> src/decode_morse.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | impl MorseDecoder {
[INFO] [stdout]   | ----------------- associated function in this implementation
[INFO] [stdout] 4 |     fn new() -> MorseDecoder {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `decode_bits` and `decode_morse` are never used
[INFO] [stdout]   --> src/decode_morse.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 9  | impl MorseDecoder {
[INFO] [stdout]    | ----------------- methods in this implementation
[INFO] [stdout] 10 |     pub fn decode_bits(&self, encoded: &str) -> String {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 16 |     pub fn decode_morse(&self, encoded: &str) -> String {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Sudoku` is never constructed
[INFO] [stdout]  --> src/validate_sudoku.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct Sudoku {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `is_valid` is never used
[INFO] [stdout]  --> src/validate_sudoku.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | impl Sudoku {
[INFO] [stdout]   | ----------- method in this implementation
[INFO] [stdout] 8 |     fn is_valid(&self) -> bool {
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `snail` is never used
[INFO] [stdout]  --> src/snail.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn snail(matrix: &[Vec<i32>]) -> Vec<i32> {
[INFO] [stdout]   |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `rolldice_sum_prob` is never used
[INFO] [stdout]  --> src/rolldice_sum_prob.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn rolldice_sum_prob(sum: i32, dice_amount: i32) -> f64 {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `assert_fuzzy_eq` is never used
[INFO] [stdout]   --> src/rolldice_sum_prob.rs:23:4
[INFO] [stdout]    |
[INFO] [stdout] 23 | fn assert_fuzzy_eq(actual: f64, expected: f64, eps: f64) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `rectangle_rotation` is never used
[INFO] [stdout]  --> src/rectangle_rotation.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn rectangle_rotation(a: i32, b: i32) -> i32 {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `dbl_linear` is never used
[INFO] [stdout]  --> src/twice_linear.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn dbl_linear(n: u32) -> u32 {
[INFO] [stdout]   |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `zeroes` is never used
[INFO] [stdout]  --> src/factorial_tail.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn zeroes(base: i32, number: i32) -> i32 {
[INFO] [stdout]   |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `going1` is never used
[INFO] [stdout]  --> src/going_to_zero_inf.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn going1(n: i32) -> f64 {
[INFO] [stdout]   |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `going` is never used
[INFO] [stdout]   --> src/going_to_zero_inf.rs:15:4
[INFO] [stdout]    |
[INFO] [stdout] 15 | fn going(n: i32) -> f64 {
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `remove_nb` is never used
[INFO] [stdout]  --> src/remove_nb.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn remove_nb(m: i32) -> Vec<(i32, i32)> {
[INFO] [stdout]   |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `testing` is never used
[INFO] [stdout]   --> src/remove_nb.rs:17:4
[INFO] [stdout]    |
[INFO] [stdout] 17 | fn testing(n: i32, exp: Vec<(i32, i32)>) -> () {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `S` should have a snake case name
[INFO] [stdout]   --> src/magnet_particules.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 |     fn S(k: i32, n: i32) -> f64 {
[INFO] [stdout]    |        ^ help: convert the identifier to snake case (notice the capitalization): `s`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/rolldice_sum_prob.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 26 |         format!("Expected {}, but got {}", expected, actual)
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: the `assert!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout]    = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 26 -         format!("Expected {}, but got {}", expected, actual)
[INFO] [stdout] 26 +         "Expected {}, but got {}", expected, actual
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 47 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `encoded`
[INFO] [stdout]   --> src/decode_morse.rs:10:31
[INFO] [stdout]    |
[INFO] [stdout] 10 |     pub fn decode_bits(&self, encoded: &str) -> String {
[INFO] [stdout]    |                               ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_encoded`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `encoded`
[INFO] [stdout]   --> src/decode_morse.rs:16:32
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn decode_morse(&self, encoded: &str) -> String {
[INFO] [stdout]    |                                ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_encoded`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `solid`
[INFO] [stdout]   --> src/bloxorz_solver.rs:78:13
[INFO] [stdout]    |
[INFO] [stdout] 78 |         let solid: HashSet<_> = map
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_solid`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `queue`
[INFO] [stdout]   --> src/bloxorz_solver.rs:84:13
[INFO] [stdout]    |
[INFO] [stdout] 84 |         let queue = BinaryHeap::<(i32, State)>::new();
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_queue`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sq_in_rect2` is never used
[INFO] [stdout]   --> src/sq_in_rect.rs:29:4
[INFO] [stdout]    |
[INFO] [stdout] 29 | fn sq_in_rect2(length: i32, width: i32) -> Option<Vec<i32>> {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `row_sum_odd_numbers2` is never used
[INFO] [stdout]  --> src/row_sum_odd_numbers.rs:5:4
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn row_sum_odd_numbers2(n: i64) -> i64 {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `North`, `South`, `East`, and `West` are never constructed
[INFO] [stdout]   --> src/bloxorz_solver.rs:7:9
[INFO] [stdout]    |
[INFO] [stdout] 6  |     enum Direction {
[INFO] [stdout]    |          --------- variants in this enum
[INFO] [stdout] 7  |         North,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 8  |         South,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 9  |         East,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 10 |         West,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Direction` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `North` and `East` are never constructed
[INFO] [stdout]   --> src/bloxorz_solver.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |     enum Lying {
[INFO] [stdout]    |          ----- variants in this enum
[INFO] [stdout] 15 |         North,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 16 |         East,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Lying` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `One` and `Two` are never constructed
[INFO] [stdout]   --> src/bloxorz_solver.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |     enum State {
[INFO] [stdout]    |          ----- variants in this enum
[INFO] [stdout] 20 |         One(usize, usize),
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 21 |         Two(usize, usize, Lying),
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `State` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `base`, `both`, `one`, `two`, and `ok` are never used
[INFO] [stdout]   --> src/bloxorz_solver.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 24 |     impl State {
[INFO] [stdout]    |     ---------- methods in this implementation
[INFO] [stdout] 25 |         fn base(self) -> (usize, usize) {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 31 |         fn both(self) -> ((usize, usize), (usize, usize)) {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 37 |         fn one(self) -> Option<(usize, usize)> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 43 |         fn two(self) -> Option<((usize, usize), (usize, usize))> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 55 |         fn ok(self, gnd: &HashSet<(usize, usize)>) -> bool {
[INFO] [stdout]    |            ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `going1` is never used
[INFO] [stdout]  --> src/going_to_zero_inf.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn going1(n: i32) -> f64 {
[INFO] [stdout]   |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]   --> src/who_is_next.rs:75:26
[INFO] [stdout]    |
[INFO] [stdout] 75 |           for (i, name) in (1..)
[INFO] [stdout]    |  __________________________^
[INFO] [stdout] 76 | |             .flat_map(|i| {
[INFO] [stdout] 77 | |                 (0..5).flat_map(move |j| std::iter::repeat(names[j]).take(2usize.pow(i - 1)))
[INFO] [stdout] 78 | |             })
[INFO] [stdout] 79 | |             .enumerate()
[INFO] [stdout] 80 | |             .nth(759137-1)
[INFO] [stdout]    | |__________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(for_loops_over_fallibles)]` on by default
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]    |
[INFO] [stdout] 75 |         while let Some((i, name)) = (1..)
[INFO] [stdout]    |         ~~~~~~~~~~~~~~~         ~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]    |
[INFO] [stdout] 75 |         if let Some((i, name)) = (1..)
[INFO] [stdout]    |         ~~~~~~~~~~~~         ~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `S` should have a snake case name
[INFO] [stdout]   --> src/magnet_particules.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 |     fn S(k: i32, n: i32) -> f64 {
[INFO] [stdout]    |        ^ help: convert the identifier to snake case (notice the capitalization): `s`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/rolldice_sum_prob.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 26 |         format!("Expected {}, but got {}", expected, actual)
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: the `assert!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout]    = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 26 -         format!("Expected {}, but got {}", expected, actual)
[INFO] [stdout] 26 +         "Expected {}, but got {}", expected, actual
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 16 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.30s
[INFO] running `Command { std: "docker" "inspect" "769b857d0c122864a8662dea5b57000254ab1a5940ed141ea15c32c35c4f17c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "769b857d0c122864a8662dea5b57000254ab1a5940ed141ea15c32c35c4f17c9", kill_on_drop: false }`
[INFO] [stdout] 769b857d0c122864a8662dea5b57000254ab1a5940ed141ea15c32c35c4f17c9