[INFO] cloning repository https://github.com/rifkyfu32/karatan
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rifkyfu32/karatan" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frifkyfu32%2Fkaratan", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frifkyfu32%2Fkaratan'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 184c6bd1a8bfb5f8228bf59a209691bfdf603dc7
[INFO] checking rifkyfu32/karatan against try#95813608313bff49cfc1afc393a946a3c085b772 for pr-148946
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frifkyfu32%2Fkaratan" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/rifkyfu32/karatan
[INFO] finished tweaking git repo https://github.com/rifkyfu32/karatan
[INFO] tweaked toml for git repo https://github.com/rifkyfu32/karatan written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/rifkyfu32/karatan on toolchain 95813608313bff49cfc1afc393a946a3c085b772
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+95813608313bff49cfc1afc393a946a3c085b772" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/rifkyfu32/karatan 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" "+95813608313bff49cfc1afc393a946a3c085b772" "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 rifkyfu32/karatan against try#95813608313bff49cfc1afc393a946a3c085b772 for pr-148946
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frifkyfu32%2Fkaratan" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/rifkyfu32/karatan
[INFO] finished tweaking git repo https://github.com/rifkyfu32/karatan
[INFO] tweaked toml for git repo https://github.com/rifkyfu32/karatan written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/rifkyfu32/karatan on toolchain 95813608313bff49cfc1afc393a946a3c085b772
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+95813608313bff49cfc1afc393a946a3c085b772" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/rifkyfu32/karatan 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" "+95813608313bff49cfc1afc393a946a3c085b772" "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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+95813608313bff49cfc1afc393a946a3c085b772" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8538df52111a12b9422b971fa6ef8839fac8b1da779188a0a00d33ec0fa40377
[INFO] running `Command { std: "docker" "start" "-a" "8538df52111a12b9422b971fa6ef8839fac8b1da779188a0a00d33ec0fa40377", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8538df52111a12b9422b971fa6ef8839fac8b1da779188a0a00d33ec0fa40377", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8538df52111a12b9422b971fa6ef8839fac8b1da779188a0a00d33ec0fa40377", kill_on_drop: false }`
[INFO] [stdout] 8538df52111a12b9422b971fa6ef8839fac8b1da779188a0a00d33ec0fa40377
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+95813608313bff49cfc1afc393a946a3c085b772" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d44d9fd2c7099e28286bf76fc555d3da27dc8941595d168dcc6260b3eae56334
[INFO] running `Command { std: "docker" "start" "-a" "d44d9fd2c7099e28286bf76fc555d3da27dc8941595d168dcc6260b3eae56334", kill_on_drop: false }`
[INFO] [stderr]     Checking belajar-dasar v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `BTreeMap`, `BTreeSet`, `HashMap`, `HashSet`, `LinkedList`, and `VecDeque`
[INFO] [stdout]    --> src/main.rs:772:19
[INFO] [stdout]     |
[INFO] [stdout] 772 |     collections::{BTreeMap, BTreeSet, HashMap, HashSet, LinkedList, VecDeque},
[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 import: `first::say_hello as say_hello_first`
[INFO] [stdout]    --> src/main.rs:779:5
[INFO] [stdout]     |
[INFO] [stdout] 779 | use first::say_hello as say_hello_first;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `first::second::third::say_hello as say_hello_first_chain`
[INFO] [stdout]    --> src/main.rs:780:5
[INFO] [stdout]     |
[INFO] [stdout] 780 | use first::second::third::say_hello as say_hello_first_chain;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `second::say_hello as say_hello_second`
[INFO] [stdout]    --> src/main.rs:781:5
[INFO] [stdout]     |
[INFO] [stdout] 781 | use second::say_hello as say_hello_second;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `hi`
[INFO] [stdout]     --> src/main.rs:1614:14
[INFO] [stdout]      |
[INFO] [stdout] 1614 | macro_rules! hi {
[INFO] [stdout]      |              ^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_macros)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `iterate`
[INFO] [stdout]     --> src/main.rs:1630:14
[INFO] [stdout]      |
[INFO] [stdout] 1630 | macro_rules! iterate {
[INFO] [stdout]      |              ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `unit` is never used
[INFO] [stdout]    --> src/main.rs:123:4
[INFO] [stdout]     |
[INFO] [stdout] 123 | fn unit() {
[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 `MAXIMUM` is never used
[INFO] [stdout]    --> src/main.rs:163:7
[INFO] [stdout]     |
[INFO] [stdout] 163 | const MAXIMUM: u8 = 20;
[INFO] [stdout]     |       ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `function_a` is never used
[INFO] [stdout]    --> src/main.rs:181:4
[INFO] [stdout]     |
[INFO] [stdout] 181 | fn function_a() {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `function_b` is never used
[INFO] [stdout]    --> src/main.rs:186:4
[INFO] [stdout]     |
[INFO] [stdout] 186 | fn function_b() {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `say_hello` is never used
[INFO] [stdout]    --> src/main.rs:370:4
[INFO] [stdout]     |
[INFO] [stdout] 370 | fn say_hello(name: &str) {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `say_goodbye` is never used
[INFO] [stdout]    --> src/main.rs:377:4
[INFO] [stdout]     |
[INFO] [stdout] 377 | fn say_goodbye(first_name: &str, last_name: &str) {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `factorial_loop` is never used
[INFO] [stdout]    --> src/main.rs:386:4
[INFO] [stdout]     |
[INFO] [stdout] 386 | fn factorial_loop(n: i64) -> i64 {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `factorial_recursive` is never used
[INFO] [stdout]    --> src/main.rs:413:4
[INFO] [stdout]     |
[INFO] [stdout] 413 | fn factorial_recursive(n: u64) -> u64 {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_text` is never used
[INFO] [stdout]    --> src/main.rs:424:4
[INFO] [stdout]     |
[INFO] [stdout] 424 | fn print_text(value: String, counter: u32) {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_number` is never used
[INFO] [stdout]    --> src/main.rs:436:4
[INFO] [stdout]     |
[INFO] [stdout] 436 | fn print_number(number: i32) {
[INFO] [stdout]     |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `hi` is never used
[INFO] [stdout]    --> src/main.rs:439:4
[INFO] [stdout]     |
[INFO] [stdout] 439 | fn hi(name: String) {
[INFO] [stdout]     |    ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `full_name` is never used
[INFO] [stdout]    --> src/main.rs:451:4
[INFO] [stdout]     |
[INFO] [stdout] 451 | fn full_name(first_name: String, last_name: String) -> String {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `full_name_ownership` is never used
[INFO] [stdout]    --> src/main.rs:471:4
[INFO] [stdout]     |
[INFO] [stdout] 471 | fn full_name_ownership(first_name: String, last_name: String) -> (String, String, String) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `full_name_reference` is never used
[INFO] [stdout]    --> src/main.rs:484:4
[INFO] [stdout]     |
[INFO] [stdout] 484 | fn full_name_reference(first_name: &String, last_name: &String) -> String {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `change_value` is never used
[INFO] [stdout]    --> src/main.rs:496:4
[INFO] [stdout]     |
[INFO] [stdout] 496 | fn change_value(value: &mut String) {
[INFO] [stdout]     |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Person` is never constructed
[INFO] [stdout]    --> src/main.rs:525:8
[INFO] [stdout]     |
[INFO] [stdout] 525 | struct Person {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_person` is never used
[INFO] [stdout]    --> src/main.rs:544:4
[INFO] [stdout]     |
[INFO] [stdout] 544 | fn print_person(person: &Person) {
[INFO] [stdout]     |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `GeoPoint` is never constructed
[INFO] [stdout]    --> src/main.rs:581:8
[INFO] [stdout]     |
[INFO] [stdout] 581 | struct GeoPoint(f64, f64);
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Nothing` is never constructed
[INFO] [stdout]    --> src/main.rs:589:8
[INFO] [stdout]     |
[INFO] [stdout] 589 | struct Nothing;
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `say_hello` is never used
[INFO] [stdout]    --> src/main.rs:598:8
[INFO] [stdout]     |
[INFO] [stdout] 597 | impl Person {
[INFO] [stdout]     | ----------- method in this implementation
[INFO] [stdout] 598 |     fn say_hello(&self, name: &str) {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/main.rs:613:8
[INFO] [stdout]     |
[INFO] [stdout] 612 | impl GeoPoint {
[INFO] [stdout]     | ------------- associated function in this implementation
[INFO] [stdout] 613 |     fn new(lat: f64, lon: f64) -> GeoPoint {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Level` is never used
[INFO] [stdout]    --> src/main.rs:623:6
[INFO] [stdout]     |
[INFO] [stdout] 623 | enum Level {
[INFO] [stdout]     |      ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Payment` is never used
[INFO] [stdout]    --> src/main.rs:634:6
[INFO] [stdout]     |
[INFO] [stdout] 634 | enum Payment {
[INFO] [stdout]     |      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `pay` is never used
[INFO] [stdout]    --> src/main.rs:640:8
[INFO] [stdout]     |
[INFO] [stdout] 639 | impl Payment {
[INFO] [stdout]     | ------------ method in this implementation
[INFO] [stdout] 640 |     fn pay(&self, amount: u32) {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Age` is never used
[INFO] [stdout]    --> src/main.rs:735:6
[INFO] [stdout]     |
[INFO] [stdout] 735 | type Age = u8;
[INFO] [stdout]     |      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `IdentityNumber` is never used
[INFO] [stdout]    --> src/main.rs:736:6
[INFO] [stdout]     |
[INFO] [stdout] 736 | type IdentityNumber = String;
[INFO] [stdout]     |      ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Customer` is never constructed
[INFO] [stdout]    --> src/main.rs:737:8
[INFO] [stdout]     |
[INFO] [stdout] 737 | struct Customer {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `CanSayHello` is never used
[INFO] [stdout]    --> src/main.rs:788:7
[INFO] [stdout]     |
[INFO] [stdout] 788 | trait CanSayHello {
[INFO] [stdout]     |       ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `trait_param` is never used
[INFO] [stdout]    --> src/main.rs:819:4
[INFO] [stdout]     |
[INFO] [stdout] 819 | fn trait_param(person: &impl CanSayHello) {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `CanSayGoodbye` is never used
[INFO] [stdout]    --> src/main.rs:832:7
[INFO] [stdout]     |
[INFO] [stdout] 832 | trait CanSayGoodbye {
[INFO] [stdout]     |       ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `hello_goodbye` is never used
[INFO] [stdout]    --> src/main.rs:845:4
[INFO] [stdout]     |
[INFO] [stdout] 845 | fn hello_goodbye(person: &(impl CanSayHello + CanSayGoodbye)) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SimplePerson` is never constructed
[INFO] [stdout]    --> src/main.rs:861:8
[INFO] [stdout]     |
[INFO] [stdout] 861 | struct SimplePerson {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `create_simple` is never used
[INFO] [stdout]    --> src/main.rs:873:4
[INFO] [stdout]     |
[INFO] [stdout] 873 | fn create_simple(name: String) -> impl CanSayGoodbye {
[INFO] [stdout]     |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `CanSay` is never used
[INFO] [stdout]    --> src/main.rs:882:7
[INFO] [stdout]     |
[INFO] [stdout] 882 | trait CanSay: CanSayHello + CanSayGoodbye {
[INFO] [stdout]     |       ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Point` is never constructed
[INFO] [stdout]    --> src/main.rs:904:8
[INFO] [stdout]     |
[INFO] [stdout] 904 | struct Point<T = i32> {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Value` is never used
[INFO] [stdout]    --> src/main.rs:915:6
[INFO] [stdout]     |
[INFO] [stdout] 915 | enum Value<T> {
[INFO] [stdout]     |      ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Hi` is never constructed
[INFO] [stdout]    --> src/main.rs:925:8
[INFO] [stdout]     |
[INFO] [stdout] 925 | struct Hi<T: CanSayGoodbye> {
[INFO] [stdout]     |        ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `min` is never used
[INFO] [stdout]    --> src/main.rs:937:4
[INFO] [stdout]     |
[INFO] [stdout] 937 | fn min<T: PartialOrd>(value1: T, value2: T) -> T {
[INFO] [stdout]     |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `get_x` and `get_y` are never used
[INFO] [stdout]    --> src/main.rs:948:8
[INFO] [stdout]     |
[INFO] [stdout] 947 | impl<T> Point<T> {
[INFO] [stdout]     | ---------------- methods in this implementation
[INFO] [stdout] 948 |     fn get_x(&self) -> &T {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 951 |     fn get_y(&self) -> &T {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `GetValue` is never used
[INFO] [stdout]    --> src/main.rs:960:7
[INFO] [stdout]     |
[INFO] [stdout] 960 | trait GetValue<T>
[INFO] [stdout]     |       ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Apple` is never constructed
[INFO] [stdout]    --> src/main.rs:984:8
[INFO] [stdout]     |
[INFO] [stdout] 984 | struct Apple {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `double` is never used
[INFO] [stdout]     --> src/main.rs:1003:4
[INFO] [stdout]      |
[INFO] [stdout] 1003 | fn double(x: Option<i32>) -> Option<i32> {
[INFO] [stdout]      |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Category` is never constructed
[INFO] [stdout]     --> src/main.rs:1071:8
[INFO] [stdout]      |
[INFO] [stdout] 1071 | struct Category {
[INFO] [stdout]      |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_with_filter` is never used
[INFO] [stdout]     --> src/main.rs:1100:4
[INFO] [stdout]      |
[INFO] [stdout] 1100 | fn print_with_filter(value: &str, filter: fn(&str) -> String) {
[INFO] [stdout]      |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `to_uppercase_custom` is never used
[INFO] [stdout]     --> src/main.rs:1110:4
[INFO] [stdout]      |
[INFO] [stdout] 1110 | fn to_uppercase_custom(value: &str) -> String {
[INFO] [stdout]      |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Counter` is never constructed
[INFO] [stdout]     --> src/main.rs:1130:8
[INFO] [stdout]      |
[INFO] [stdout] 1130 | struct Counter {
[INFO] [stdout]      |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `increment` is never used
[INFO] [stdout]     --> src/main.rs:1134:8
[INFO] [stdout]      |
[INFO] [stdout] 1133 | impl Counter {
[INFO] [stdout]      | ------------ method in this implementation
[INFO] [stdout] 1134 |     fn increment(&mut self) {
[INFO] [stdout]      |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `connect_database` is never used
[INFO] [stdout]     --> src/main.rs:1278:4
[INFO] [stdout]      |
[INFO] [stdout] 1278 | fn connect_database(host: Option<String>) {
[INFO] [stdout]      |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `connect_cache` is never used
[INFO] [stdout]     --> src/main.rs:1288:4
[INFO] [stdout]      |
[INFO] [stdout] 1288 | fn connect_cache(host: Option<String>) -> Result<String, &'static str> {
[INFO] [stdout]      |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `connect_email` is never used
[INFO] [stdout]     --> src/main.rs:1302:4
[INFO] [stdout]      |
[INFO] [stdout] 1302 | fn connect_email(host: Option<String>) -> Result<String, &'static str> {
[INFO] [stdout]      |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `connect_application` is never used
[INFO] [stdout]     --> src/main.rs:1308:4
[INFO] [stdout]      |
[INFO] [stdout] 1308 | fn connect_application(host: Option<String>) -> Result<String, &'static str> {
[INFO] [stdout]      |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `connect_application_operator` is never used
[INFO] [stdout]     --> src/main.rs:1329:4
[INFO] [stdout]      |
[INFO] [stdout] 1329 | fn connect_application_operator(host: Option<String>) -> Result<&'static str, &'static str> {
[INFO] [stdout]      |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `longest` is never used
[INFO] [stdout]     --> src/main.rs:1354:4
[INFO] [stdout]      |
[INFO] [stdout] 1354 | fn longest<'a>(value1: &'a str, value2: &'a str) -> &'a str {
[INFO] [stdout]      |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Student` is never constructed
[INFO] [stdout]     --> src/main.rs:1384:8
[INFO] [stdout]      |
[INFO] [stdout] 1384 | struct Student<'a> {
[INFO] [stdout]      |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `longets_student_name` is never used
[INFO] [stdout]     --> src/main.rs:1387:4
[INFO] [stdout]      |
[INFO] [stdout] 1387 | fn longets_student_name<'a>(value1: &'a Student, value2: &'a Student) -> &'a Student<'a> {
[INFO] [stdout]      |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `longets_name` is never used
[INFO] [stdout]     --> src/main.rs:1402:8
[INFO] [stdout]      |
[INFO] [stdout] 1401 | impl<'a> Student<'a> {
[INFO] [stdout]      | -------------------- method in this implementation
[INFO] [stdout] 1402 |     fn longets_name(&self, student: &Student<'a>) -> &'a str {
[INFO] [stdout]      |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Teacher` is never constructed
[INFO] [stdout]     --> src/main.rs:1417:8
[INFO] [stdout]      |
[INFO] [stdout] 1417 | struct Teacher<'a, ID>
[INFO] [stdout]      |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Company` is never constructed
[INFO] [stdout]     --> src/main.rs:1438:8
[INFO] [stdout]      |
[INFO] [stdout] 1438 | struct Company {
[INFO] [stdout]      |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Variant` is never used
[INFO] [stdout]     --> src/main.rs:1457:6
[INFO] [stdout]      |
[INFO] [stdout] 1457 | enum Variant {
[INFO] [stdout]      |      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MyValue` is never constructed
[INFO] [stdout]     --> src/main.rs:1485:8
[INFO] [stdout]      |
[INFO] [stdout] 1485 | struct MyValue<T> {
[INFO] [stdout]      |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Book` is never constructed
[INFO] [stdout]     --> src/main.rs:1511:8
[INFO] [stdout]      |
[INFO] [stdout] 1511 | struct Book {
[INFO] [stdout]      |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Brand` is never used
[INFO] [stdout]     --> src/main.rs:1542:6
[INFO] [stdout]      |
[INFO] [stdout] 1542 | enum Brand {
[INFO] [stdout]      |      ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Seller` is never constructed
[INFO] [stdout]     --> src/main.rs:1568:8
[INFO] [stdout]      |
[INFO] [stdout] 1568 | struct Seller {
[INFO] [stdout]      |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `VERSION` is never used
[INFO] [stdout]     --> src/main.rs:1594:8
[INFO] [stdout]      |
[INFO] [stdout] 1594 | static VERSION: &str = "1.0.0";
[INFO] [stdout]      |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `COUNTER` is never used
[INFO] [stdout]     --> src/main.rs:1599:12
[INFO] [stdout]      |
[INFO] [stdout] 1599 | static mut COUNTER: i32 = 0;
[INFO] [stdout]      |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `increment` is never used
[INFO] [stdout]     --> src/main.rs:1602:11
[INFO] [stdout]      |
[INFO] [stdout] 1602 | unsafe fn increment() {
[INFO] [stdout]      |           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `User` is never constructed
[INFO] [stdout]  --> src/model.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct User {
[INFO] [stdout]   |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `say_hello` is never used
[INFO] [stdout]  --> src/model.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | impl User {
[INFO] [stdout]   | --------- method in this implementation
[INFO] [stdout] 7 |     pub fn say_hello(self, name: &str) {
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `say_hello` is never used
[INFO] [stdout]  --> src/first.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub fn say_hello() {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `say_hello` is never used
[INFO] [stdout]  --> src/first.rs:8:16
[INFO] [stdout]   |
[INFO] [stdout] 8 |         pub fn say_hello() {
[INFO] [stdout]   |                ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `say_hello` is never used
[INFO] [stdout]  --> src/second.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn say_hello() {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `say_hello` is never used
[INFO] [stdout]  --> src/third.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn say_hello() {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.26s
[INFO] running `Command { std: "docker" "inspect" "d44d9fd2c7099e28286bf76fc555d3da27dc8941595d168dcc6260b3eae56334", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d44d9fd2c7099e28286bf76fc555d3da27dc8941595d168dcc6260b3eae56334", kill_on_drop: false }`
[INFO] [stdout] d44d9fd2c7099e28286bf76fc555d3da27dc8941595d168dcc6260b3eae56334