[INFO] cloning repository https://github.com/linafedo/rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/linafedo/rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flinafedo%2Frust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flinafedo%2Frust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b759fcc3a1a2f969645e1a1fdcfc465ee076808d
[INFO] testing linafedo/rust against master#552a959051cebf8f88a8f558399baf733bec9ce0 for pr-136932
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flinafedo%2Frust" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/linafedo/rust on toolchain 552a959051cebf8f88a8f558399baf733bec9ce0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+552a959051cebf8f88a8f558399baf733bec9ce0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/linafedo/rust
[INFO] finished tweaking git repo https://github.com/linafedo/rust
[INFO] tweaked toml for git repo https://github.com/linafedo/rust written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/linafedo/rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+552a959051cebf8f88a8f558399baf733bec9ce0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+552a959051cebf8f88a8f558399baf733bec9ce0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f44cda79ece4c1bf231e5cd5d49671f51f41a2d1999936d144d083a8b84bd2cf
[INFO] running `Command { std: "docker" "start" "-a" "f44cda79ece4c1bf231e5cd5d49671f51f41a2d1999936d144d083a8b84bd2cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f44cda79ece4c1bf231e5cd5d49671f51f41a2d1999936d144d083a8b84bd2cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f44cda79ece4c1bf231e5cd5d49671f51f41a2d1999936d144d083a8b84bd2cf", kill_on_drop: false }`
[INFO] [stdout] f44cda79ece4c1bf231e5cd5d49671f51f41a2d1999936d144d083a8b84bd2cf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+552a959051cebf8f88a8f558399baf733bec9ce0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 475825a76fda0f8d136b975b9e2b49cade1426e1029216d434ed8aa48b3a3e6d
[INFO] running `Command { std: "docker" "start" "-a" "475825a76fda0f8d136b975b9e2b49cade1426e1029216d434ed8aa48b3a3e6d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling getrandom v0.2.7
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::borrow::BorrowMut`
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::borrow::BorrowMut;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops::Deref`
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::ops::Deref;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ptr::null`
[INFO] [stdout]  --> src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::ptr::null;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Inventory` and `ShirtColor`
[INFO] [stdout]  --> src/main.rs:5:30
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::shirt_inventory::{Inventory, ShirtColor};
[INFO] [stdout]   |                              ^^^^^^^^^  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]  --> src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::rc::Rc;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::borrow::BorrowMut`
[INFO] [stdout]  --> src/vec.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::borrow::BorrowMut;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cmp::max`
[INFO] [stdout]  --> src/vec.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::cmp::max;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fmt::format`
[INFO] [stdout]  --> src/vec.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::fmt::format;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::str::Chars`
[INFO] [stdout]  --> src/vec.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::str::Chars;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::hash_map::Department::Sales`
[INFO] [stdout]  --> src/hash_map.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::hash_map::Department::Sales;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::vec::vec`
[INFO] [stdout]  --> src/weak_reference.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::vec::vec;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cell::RefCell`
[INFO] [stdout]  --> src/mutex.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::cell::RefCell;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]  --> src/mutex.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::rc::Rc;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::borrow::BorrowMut`
[INFO] [stdout]  --> src/weak_reference.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::borrow::BorrowMut;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/vec.rs:105:13
[INFO] [stdout]     |
[INFO] [stdout] 105 |         let mut count = map.entry(item).or_insert(0);
[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/hash_map.rs:28:18
[INFO] [stdout]    |
[INFO] [stdout] 28 |             Some(mut vec) => {
[INFO] [stdout]    |                  ----^^^
[INFO] [stdout]    |                  |
[INFO] [stdout]    |                  help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `guess_task` is never used
[INFO] [stdout]  --> src/guess_task.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn guess_task(run: bool) {
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SUBTRAHEND` is never used
[INFO] [stdout]  --> src/convert_fahrenheit_to_celsius.rs:2:7
[INFO] [stdout]   |
[INFO] [stdout] 2 | const SUBTRAHEND:i32 = 32;
[INFO] [stdout]   |       ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `DIVIDER` is never used
[INFO] [stdout]  --> src/convert_fahrenheit_to_celsius.rs:3:7
[INFO] [stdout]   |
[INFO] [stdout] 3 | const DIVIDER:f32 = 1.8;
[INFO] [stdout]   |       ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `convert_fahrenheit_to_celsius` is never used
[INFO] [stdout]  --> src/convert_fahrenheit_to_celsius.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn convert_fahrenheit_to_celsius(item: f32, run: bool) {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_fibonacci_number` is never used
[INFO] [stdout]  --> src/fibonacci_number.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub fn get_fibonacci_number(index: u32, run: bool) {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Size` is never constructed
[INFO] [stdout]  --> src/structures.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Size {
[INFO] [stdout]   |            ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Size` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `area` is never used
[INFO] [stdout]  --> src/structures.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | impl Size {
[INFO] [stdout]   | --------- method in this implementation
[INFO] [stdout] 9 |     fn area(&self) -> i32 {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_area_for_size` is never used
[INFO] [stdout]   --> src/structures.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub fn print_area_for_size(size: &Size, run: bool) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Car` is never used
[INFO] [stdout]  --> src/enums.rs:2:10
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub enum Car {
[INFO] [stdout]   |          ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Car` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Person` is never constructed
[INFO] [stdout]  --> src/enums.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct Person {
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `print_person_info` and `check_enums` are never used
[INFO] [stdout]   --> src/enums.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | impl Person {
[INFO] [stdout]    | ----------- associated items in this implementation
[INFO] [stdout] 18 |     pub fn print_person_info(&self) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 35 |     pub fn check_enums() {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Coin` is never used
[INFO] [stdout]   --> src/enums.rs:43:10
[INFO] [stdout]    |
[INFO] [stdout] 43 | pub enum Coin {
[INFO] [stdout]    |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `CoinItem` is never constructed
[INFO] [stdout]   --> src/enums.rs:50:12
[INFO] [stdout]    |
[INFO] [stdout] 50 | pub struct CoinItem {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_value_in_cent` is never used
[INFO] [stdout]   --> src/enums.rs:55:12
[INFO] [stdout]    |
[INFO] [stdout] 54 | impl CoinItem {
[INFO] [stdout]    | ------------- method in this implementation
[INFO] [stdout] 55 |     pub fn get_value_in_cent(&self) -> u8 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `handle_option` is never used
[INFO] [stdout]   --> src/enums.rs:65:8
[INFO] [stdout]    |
[INFO] [stdout] 65 | pub fn handle_option(item: Option<bool>) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `vec` is never used
[INFO] [stdout]  --> src/vec.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn vec() {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `TypeForVector` is never used
[INFO] [stdout]   --> src/vec.rs:24:10
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub enum TypeForVector {
[INFO] [stdout]    |          ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Vector` is never constructed
[INFO] [stdout]   --> src/vec.rs:30:12
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub struct Vector {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `create_vec` and `get_str` are never used
[INFO] [stdout]   --> src/vec.rs:35:8
[INFO] [stdout]    |
[INFO] [stdout] 34 | impl Vector {
[INFO] [stdout]    | ----------- associated functions in this implementation
[INFO] [stdout] 35 |     fn create_vec() {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 44 |     pub fn get_str() {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `map` is never used
[INFO] [stdout]   --> src/vec.rs:59:8
[INFO] [stdout]    |
[INFO] [stdout] 59 | pub fn map() {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_mid_value` is never used
[INFO] [stdout]   --> src/vec.rs:70:8
[INFO] [stdout]    |
[INFO] [stdout] 70 | pub fn get_mid_value(vec: Vec<i32>) -> i32 {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_mediana` is never used
[INFO] [stdout]   --> src/vec.rs:79:8
[INFO] [stdout]    |
[INFO] [stdout] 79 | pub fn get_mediana(vec: &mut Vec<i32>) -> Option<i32> {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_mode_of_list` is never used
[INFO] [stdout]    --> src/vec.rs:100:9
[INFO] [stdout]     |
[INFO] [stdout] 100 | pub  fn get_mode_of_list(vec: Vec<i32>) -> Vec<i32> {
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `pig_latin_transform` is never used
[INFO] [stdout]    --> src/vec.rs:123:8
[INFO] [stdout]     |
[INFO] [stdout] 123 | pub fn pig_latin_transform() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Sales`, `Marketing`, and `Management` are never constructed
[INFO] [stdout]  --> src/hash_map.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub enum Department {
[INFO] [stdout]   |          ---------- variants in this enum
[INFO] [stdout] 7 |     Sales,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 8 |     Marketing,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 9 |     Management,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Department` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Employees` is never constructed
[INFO] [stdout]   --> src/hash_map.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct Employees {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `add_employer`, `get_employers`, and `get_all_employees` are never used
[INFO] [stdout]   --> src/hash_map.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | impl Employees {
[INFO] [stdout]    | -------------- associated items in this implementation
[INFO] [stdout] 17 |     pub fn new() -> Employees {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 21 |     pub fn add_employer(&mut self, name: String, department: Department) {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 39 |     pub fn get_employers(&self, from: Department) -> Option<&Vec<String>> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 43 |     pub fn get_all_employees(&mut self) -> Vec<&String> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Rectangle` is never constructed
[INFO] [stdout]  --> src/rectangle.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Rectangle {
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Rectangle` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `can_hold`, and `is_square` are never used
[INFO] [stdout]   --> src/rectangle.rs:8:12
[INFO] [stdout]    |
[INFO] [stdout] 7  | impl Rectangle {
[INFO] [stdout]    | -------------- associated items in this implementation
[INFO] [stdout] 8  |     pub fn new(height:u32, weight: u32) -> Rectangle {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 15 |     pub fn can_hold(&self, rectangle: &Rectangle) -> bool {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 19 |     fn is_square(&self) -> bool  {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Red` and `Blue` are never constructed
[INFO] [stdout]  --> src/shirt_inventory.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub enum ShirtColor  {
[INFO] [stdout]   |          ---------- variants in this enum
[INFO] [stdout] 3 |     Red,
[INFO] [stdout]   |     ^^^
[INFO] [stdout] 4 |     Blue,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `ShirtColor` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Inventory` is never constructed
[INFO] [stdout]  --> src/shirt_inventory.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct Inventory {
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `giveaway` and `most_stocked` are never used
[INFO] [stdout]   --> src/shirt_inventory.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl Inventory {
[INFO] [stdout]    | -------------- methods in this implementation
[INFO] [stdout] 12 |     pub fn giveaway(&self, user_preference: Option<ShirtColor>) -> ShirtColor {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 16 |     fn most_stocked(&self) -> ShirtColor {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `List` is never used
[INFO] [stdout]  --> src/ref_cell.rs:6:6
[INFO] [stdout]   |
[INFO] [stdout] 6 | enum List{
[INFO] [stdout]   |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `create_ref_cell` is never used
[INFO] [stdout]   --> src/ref_cell.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn create_ref_cell() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `List` is never used
[INFO] [stdout]  --> src/retain_cycle.rs:6:6
[INFO] [stdout]   |
[INFO] [stdout] 6 | enum List{
[INFO] [stdout]   |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `tail` is never used
[INFO] [stdout]   --> src/retain_cycle.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl List {
[INFO] [stdout]    | --------- method in this implementation
[INFO] [stdout] 12 |     fn tail(&self) -> Option<&RefCell<Rc<List>>> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `retain_cycle` is never used
[INFO] [stdout]   --> src/retain_cycle.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub fn retain_cycle() {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Node` is never constructed
[INFO] [stdout]  --> src/weak_reference.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | struct Node {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `use_weak_ref` is never used
[INFO] [stdout]   --> src/weak_reference.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub fn use_weak_ref() {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `create_new_thread` is never used
[INFO] [stdout]  --> src/thread.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn create_new_thread() {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `move_prop` is never used
[INFO] [stdout]   --> src/thread.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub fn move_prop(){
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `create_channel` is never used
[INFO] [stdout]   --> src/thread.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub fn create_channel() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.63s
[INFO] running `Command { std: "docker" "inspect" "475825a76fda0f8d136b975b9e2b49cade1426e1029216d434ed8aa48b3a3e6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "475825a76fda0f8d136b975b9e2b49cade1426e1029216d434ed8aa48b3a3e6d", kill_on_drop: false }`
[INFO] [stdout] 475825a76fda0f8d136b975b9e2b49cade1426e1029216d434ed8aa48b3a3e6d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+552a959051cebf8f88a8f558399baf733bec9ce0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1846ae9dda61462e848aa9a2f716b962eefab6b8253fc1529f2e1c0267f3ee9d
[INFO] running `Command { std: "docker" "start" "-a" "1846ae9dda61462e848aa9a2f716b962eefab6b8253fc1529f2e1c0267f3ee9d", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::borrow::BorrowMut`
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::borrow::BorrowMut;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops::Deref`
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::ops::Deref;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ptr::null`
[INFO] [stdout]  --> src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::ptr::null;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Inventory` and `ShirtColor`
[INFO] [stdout]  --> src/main.rs:5:30
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::shirt_inventory::{Inventory, ShirtColor};
[INFO] [stdout]   |                              ^^^^^^^^^  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]  --> src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::rc::Rc;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::borrow::BorrowMut`
[INFO] [stdout]  --> src/vec.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::borrow::BorrowMut;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cmp::max`
[INFO] [stdout]  --> src/vec.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::cmp::max;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fmt::format`
[INFO] [stdout]  --> src/vec.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::fmt::format;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::str::Chars`
[INFO] [stdout]  --> src/vec.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::str::Chars;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::hash_map::Department::Sales`
[INFO] [stdout]  --> src/hash_map.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::hash_map::Department::Sales;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::vec::vec`
[INFO] [stdout]  --> src/weak_reference.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::vec::vec;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cell::RefCell`
[INFO] [stdout]  --> src/mutex.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::cell::RefCell;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]  --> src/mutex.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::rc::Rc;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::borrow::BorrowMut`
[INFO] [stdout]  --> src/weak_reference.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::borrow::BorrowMut;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/vec.rs:105:13
[INFO] [stdout]     |
[INFO] [stdout] 105 |         let mut count = map.entry(item).or_insert(0);
[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/hash_map.rs:28:18
[INFO] [stdout]    |
[INFO] [stdout] 28 |             Some(mut vec) => {
[INFO] [stdout]    |                  ----^^^
[INFO] [stdout]    |                  |
[INFO] [stdout]    |                  help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `guess_task` is never used
[INFO] [stdout]  --> src/guess_task.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn guess_task(run: bool) {
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SUBTRAHEND` is never used
[INFO] [stdout]  --> src/convert_fahrenheit_to_celsius.rs:2:7
[INFO] [stdout]   |
[INFO] [stdout] 2 | const SUBTRAHEND:i32 = 32;
[INFO] [stdout]   |       ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `DIVIDER` is never used
[INFO] [stdout]  --> src/convert_fahrenheit_to_celsius.rs:3:7
[INFO] [stdout]   |
[INFO] [stdout] 3 | const DIVIDER:f32 = 1.8;
[INFO] [stdout]   |       ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `convert_fahrenheit_to_celsius` is never used
[INFO] [stdout]  --> src/convert_fahrenheit_to_celsius.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn convert_fahrenheit_to_celsius(item: f32, run: bool) {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_fibonacci_number` is never used
[INFO] [stdout]  --> src/fibonacci_number.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub fn get_fibonacci_number(index: u32, run: bool) {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Size` is never constructed
[INFO] [stdout]  --> src/structures.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Size {
[INFO] [stdout]   |            ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Size` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `area` is never used
[INFO] [stdout]  --> src/structures.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | impl Size {
[INFO] [stdout]   | --------- method in this implementation
[INFO] [stdout] 9 |     fn area(&self) -> i32 {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_area_for_size` is never used
[INFO] [stdout]   --> src/structures.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub fn print_area_for_size(size: &Size, run: bool) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Car` is never used
[INFO] [stdout]  --> src/enums.rs:2:10
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub enum Car {
[INFO] [stdout]   |          ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Car` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Person` is never constructed
[INFO] [stdout]  --> src/enums.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct Person {
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `print_person_info` and `check_enums` are never used
[INFO] [stdout]   --> src/enums.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | impl Person {
[INFO] [stdout]    | ----------- associated items in this implementation
[INFO] [stdout] 18 |     pub fn print_person_info(&self) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 35 |     pub fn check_enums() {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Coin` is never used
[INFO] [stdout]   --> src/enums.rs:43:10
[INFO] [stdout]    |
[INFO] [stdout] 43 | pub enum Coin {
[INFO] [stdout]    |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `CoinItem` is never constructed
[INFO] [stdout]   --> src/enums.rs:50:12
[INFO] [stdout]    |
[INFO] [stdout] 50 | pub struct CoinItem {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_value_in_cent` is never used
[INFO] [stdout]   --> src/enums.rs:55:12
[INFO] [stdout]    |
[INFO] [stdout] 54 | impl CoinItem {
[INFO] [stdout]    | ------------- method in this implementation
[INFO] [stdout] 55 |     pub fn get_value_in_cent(&self) -> u8 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `handle_option` is never used
[INFO] [stdout]   --> src/enums.rs:65:8
[INFO] [stdout]    |
[INFO] [stdout] 65 | pub fn handle_option(item: Option<bool>) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `vec` is never used
[INFO] [stdout]  --> src/vec.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn vec() {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `TypeForVector` is never used
[INFO] [stdout]   --> src/vec.rs:24:10
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub enum TypeForVector {
[INFO] [stdout]    |          ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Vector` is never constructed
[INFO] [stdout]   --> src/vec.rs:30:12
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub struct Vector {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `create_vec` and `get_str` are never used
[INFO] [stdout]   --> src/vec.rs:35:8
[INFO] [stdout]    |
[INFO] [stdout] 34 | impl Vector {
[INFO] [stdout]    | ----------- associated functions in this implementation
[INFO] [stdout] 35 |     fn create_vec() {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 44 |     pub fn get_str() {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `map` is never used
[INFO] [stdout]   --> src/vec.rs:59:8
[INFO] [stdout]    |
[INFO] [stdout] 59 | pub fn map() {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_mid_value` is never used
[INFO] [stdout]   --> src/vec.rs:70:8
[INFO] [stdout]    |
[INFO] [stdout] 70 | pub fn get_mid_value(vec: Vec<i32>) -> i32 {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_mediana` is never used
[INFO] [stdout]   --> src/vec.rs:79:8
[INFO] [stdout]    |
[INFO] [stdout] 79 | pub fn get_mediana(vec: &mut Vec<i32>) -> Option<i32> {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_mode_of_list` is never used
[INFO] [stdout]    --> src/vec.rs:100:9
[INFO] [stdout]     |
[INFO] [stdout] 100 | pub  fn get_mode_of_list(vec: Vec<i32>) -> Vec<i32> {
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `pig_latin_transform` is never used
[INFO] [stdout]    --> src/vec.rs:123:8
[INFO] [stdout]     |
[INFO] [stdout] 123 | pub fn pig_latin_transform() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Sales`, `Marketing`, and `Management` are never constructed
[INFO] [stdout]  --> src/hash_map.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub enum Department {
[INFO] [stdout]   |          ---------- variants in this enum
[INFO] [stdout] 7 |     Sales,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 8 |     Marketing,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 9 |     Management,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Department` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Employees` is never constructed
[INFO] [stdout]   --> src/hash_map.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct Employees {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `add_employer`, `get_employers`, and `get_all_employees` are never used
[INFO] [stdout]   --> src/hash_map.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | impl Employees {
[INFO] [stdout]    | -------------- associated items in this implementation
[INFO] [stdout] 17 |     pub fn new() -> Employees {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 21 |     pub fn add_employer(&mut self, name: String, department: Department) {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 39 |     pub fn get_employers(&self, from: Department) -> Option<&Vec<String>> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 43 |     pub fn get_all_employees(&mut self) -> Vec<&String> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Red` and `Blue` are never constructed
[INFO] [stdout]  --> src/shirt_inventory.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub enum ShirtColor  {
[INFO] [stdout]   |          ---------- variants in this enum
[INFO] [stdout] 3 |     Red,
[INFO] [stdout]   |     ^^^
[INFO] [stdout] 4 |     Blue,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `ShirtColor` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Inventory` is never constructed
[INFO] [stdout]  --> src/shirt_inventory.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct Inventory {
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `giveaway` and `most_stocked` are never used
[INFO] [stdout]   --> src/shirt_inventory.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl Inventory {
[INFO] [stdout]    | -------------- methods in this implementation
[INFO] [stdout] 12 |     pub fn giveaway(&self, user_preference: Option<ShirtColor>) -> ShirtColor {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 16 |     fn most_stocked(&self) -> ShirtColor {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `List` is never used
[INFO] [stdout]  --> src/ref_cell.rs:6:6
[INFO] [stdout]   |
[INFO] [stdout] 6 | enum List{
[INFO] [stdout]   |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `create_ref_cell` is never used
[INFO] [stdout]   --> src/ref_cell.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn create_ref_cell() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `List` is never used
[INFO] [stdout]  --> src/retain_cycle.rs:6:6
[INFO] [stdout]   |
[INFO] [stdout] 6 | enum List{
[INFO] [stdout]   |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `tail` is never used
[INFO] [stdout]   --> src/retain_cycle.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl List {
[INFO] [stdout]    | --------- method in this implementation
[INFO] [stdout] 12 |     fn tail(&self) -> Option<&RefCell<Rc<List>>> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `retain_cycle` is never used
[INFO] [stdout]   --> src/retain_cycle.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub fn retain_cycle() {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Node` is never constructed
[INFO] [stdout]  --> src/weak_reference.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | struct Node {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `use_weak_ref` is never used
[INFO] [stdout]   --> src/weak_reference.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub fn use_weak_ref() {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `create_new_thread` is never used
[INFO] [stdout]  --> src/thread.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn create_new_thread() {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `move_prop` is never used
[INFO] [stdout]   --> src/thread.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub fn move_prop(){
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `create_channel` is never used
[INFO] [stdout]   --> src/thread.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub fn create_channel() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.43s
[INFO] running `Command { std: "docker" "inspect" "1846ae9dda61462e848aa9a2f716b962eefab6b8253fc1529f2e1c0267f3ee9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1846ae9dda61462e848aa9a2f716b962eefab6b8253fc1529f2e1c0267f3ee9d", kill_on_drop: false }`
[INFO] [stdout] 1846ae9dda61462e848aa9a2f716b962eefab6b8253fc1529f2e1c0267f3ee9d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+552a959051cebf8f88a8f558399baf733bec9ce0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6718d42fce3d918819d0323121612adbd1a51a8c0a815b4d91bf9fc961969ae6
[INFO] running `Command { std: "docker" "start" "-a" "6718d42fce3d918819d0323121612adbd1a51a8c0a815b4d91bf9fc961969ae6", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `std::borrow::BorrowMut`
[INFO] [stderr]  --> src/main.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::borrow::BorrowMut;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]  --> src/main.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::collections::HashMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::ops::Deref`
[INFO] [stderr]  --> src/main.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::ops::Deref;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::ptr::null`
[INFO] [stderr]  --> src/main.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::ptr::null;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Inventory` and `ShirtColor`
[INFO] [stderr]  --> src/main.rs:5:30
[INFO] [stderr]   |
[INFO] [stderr] 5 | use crate::shirt_inventory::{Inventory, ShirtColor};
[INFO] [stderr]   |                              ^^^^^^^^^  ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::rc::Rc`
[INFO] [stderr]  --> src/main.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::rc::Rc;
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::borrow::BorrowMut`
[INFO] [stderr]  --> src/vec.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::borrow::BorrowMut;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::cmp::max`
[INFO] [stderr]  --> src/vec.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::cmp::max;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fmt::format`
[INFO] [stderr]  --> src/vec.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::fmt::format;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::str::Chars`
[INFO] [stderr]  --> src/vec.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::str::Chars;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::hash_map::Department::Sales`
[INFO] [stderr]  --> src/hash_map.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use crate::hash_map::Department::Sales;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::vec::vec`
[INFO] [stderr]  --> src/weak_reference.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use crate::vec::vec;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::cell::RefCell`
[INFO] [stderr]  --> src/mutex.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::cell::RefCell;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::rc::Rc`
[INFO] [stderr]  --> src/mutex.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::rc::Rc;
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::borrow::BorrowMut`
[INFO] [stderr]  --> src/weak_reference.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::borrow::BorrowMut;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/vec.rs:105:13
[INFO] [stderr]     |
[INFO] [stderr] 105 |         let mut count = map.entry(item).or_insert(0);
[INFO] [stderr]     |             ----^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/hash_map.rs:28:18
[INFO] [stderr]    |
[INFO] [stderr] 28 |             Some(mut vec) => {
[INFO] [stderr]    |                  ----^^^
[INFO] [stderr]    |                  |
[INFO] [stderr]    |                  help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: function `guess_task` is never used
[INFO] [stderr]  --> src/guess_task.rs:4:8
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn guess_task(run: bool) {
[INFO] [stderr]   |        ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant `SUBTRAHEND` is never used
[INFO] [stderr]  --> src/convert_fahrenheit_to_celsius.rs:2:7
[INFO] [stderr]   |
[INFO] [stderr] 2 | const SUBTRAHEND:i32 = 32;
[INFO] [stderr]   |       ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `DIVIDER` is never used
[INFO] [stderr]  --> src/convert_fahrenheit_to_celsius.rs:3:7
[INFO] [stderr]   |
[INFO] [stderr] 3 | const DIVIDER:f32 = 1.8;
[INFO] [stderr]   |       ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `convert_fahrenheit_to_celsius` is never used
[INFO] [stderr]  --> src/convert_fahrenheit_to_celsius.rs:5:8
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn convert_fahrenheit_to_celsius(item: f32, run: bool) {
[INFO] [stderr]   |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `get_fibonacci_number` is never used
[INFO] [stderr]  --> src/fibonacci_number.rs:2:8
[INFO] [stderr]   |
[INFO] [stderr] 2 | pub fn get_fibonacci_number(index: u32, run: bool) {
[INFO] [stderr]   |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Size` is never constructed
[INFO] [stderr]  --> src/structures.rs:3:12
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub struct Size {
[INFO] [stderr]   |            ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `Size` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: method `area` is never used
[INFO] [stderr]  --> src/structures.rs:9:8
[INFO] [stderr]   |
[INFO] [stderr] 8 | impl Size {
[INFO] [stderr]   | --------- method in this implementation
[INFO] [stderr] 9 |     fn area(&self) -> i32 {
[INFO] [stderr]   |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `print_area_for_size` is never used
[INFO] [stderr]   --> src/structures.rs:14:8
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub fn print_area_for_size(size: &Size, run: bool) {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `Car` is never used
[INFO] [stderr]  --> src/enums.rs:2:10
[INFO] [stderr]   |
[INFO] [stderr] 2 | pub enum Car {
[INFO] [stderr]   |          ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `Car` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Person` is never constructed
[INFO] [stderr]  --> src/enums.rs:9:12
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub struct Person {
[INFO] [stderr]   |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `print_person_info` and `check_enums` are never used
[INFO] [stderr]   --> src/enums.rs:18:12
[INFO] [stderr]    |
[INFO] [stderr] 17 | impl Person {
[INFO] [stderr]    | ----------- associated items in this implementation
[INFO] [stderr] 18 |     pub fn print_person_info(&self) {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 35 |     pub fn check_enums() {
[INFO] [stderr]    |            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `Coin` is never used
[INFO] [stderr]   --> src/enums.rs:43:10
[INFO] [stderr]    |
[INFO] [stderr] 43 | pub enum Coin {
[INFO] [stderr]    |          ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `CoinItem` is never constructed
[INFO] [stderr]   --> src/enums.rs:50:12
[INFO] [stderr]    |
[INFO] [stderr] 50 | pub struct CoinItem {
[INFO] [stderr]    |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `get_value_in_cent` is never used
[INFO] [stderr]   --> src/enums.rs:55:12
[INFO] [stderr]    |
[INFO] [stderr] 54 | impl CoinItem {
[INFO] [stderr]    | ------------- method in this implementation
[INFO] [stderr] 55 |     pub fn get_value_in_cent(&self) -> u8 {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `handle_option` is never used
[INFO] [stderr]   --> src/enums.rs:65:8
[INFO] [stderr]    |
[INFO] [stderr] 65 | pub fn handle_option(item: Option<bool>) {
[INFO] [stderr]    |        ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `vec` is never used
[INFO] [stderr]  --> src/vec.rs:8:8
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub fn vec() {
[INFO] [stderr]   |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `TypeForVector` is never used
[INFO] [stderr]   --> src/vec.rs:24:10
[INFO] [stderr]    |
[INFO] [stderr] 24 | pub enum TypeForVector {
[INFO] [stderr]    |          ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Vector` is never constructed
[INFO] [stderr]   --> src/vec.rs:30:12
[INFO] [stderr]    |
[INFO] [stderr] 30 | pub struct Vector {
[INFO] [stderr]    |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated functions `create_vec` and `get_str` are never used
[INFO] [stderr]   --> src/vec.rs:35:8
[INFO] [stderr]    |
[INFO] [stderr] 34 | impl Vector {
[INFO] [stderr]    | ----------- associated functions in this implementation
[INFO] [stderr] 35 |     fn create_vec() {
[INFO] [stderr]    |        ^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 44 |     pub fn get_str() {
[INFO] [stderr]    |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `map` is never used
[INFO] [stderr]   --> src/vec.rs:59:8
[INFO] [stderr]    |
[INFO] [stderr] 59 | pub fn map() {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `get_mid_value` is never used
[INFO] [stderr]   --> src/vec.rs:70:8
[INFO] [stderr]    |
[INFO] [stderr] 70 | pub fn get_mid_value(vec: Vec<i32>) -> i32 {
[INFO] [stderr]    |        ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `get_mediana` is never used
[INFO] [stderr]   --> src/vec.rs:79:8
[INFO] [stderr]    |
[INFO] [stderr] 79 | pub fn get_mediana(vec: &mut Vec<i32>) -> Option<i32> {
[INFO] [stderr]    |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `get_mode_of_list` is never used
[INFO] [stderr]    --> src/vec.rs:100:9
[INFO] [stderr]     |
[INFO] [stderr] 100 | pub  fn get_mode_of_list(vec: Vec<i32>) -> Vec<i32> {
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `pig_latin_transform` is never used
[INFO] [stderr]    --> src/vec.rs:123:8
[INFO] [stderr]     |
[INFO] [stderr] 123 | pub fn pig_latin_transform() {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variants `Sales`, `Marketing`, and `Management` are never constructed
[INFO] [stderr]  --> src/hash_map.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub enum Department {
[INFO] [stderr]   |          ---------- variants in this enum
[INFO] [stderr] 7 |     Sales,
[INFO] [stderr]   |     ^^^^^
[INFO] [stderr] 8 |     Marketing,
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr] 9 |     Management,
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `Department` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Employees` is never constructed
[INFO] [stderr]   --> src/hash_map.rs:12:12
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub struct Employees {
[INFO] [stderr]    |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `new`, `add_employer`, `get_employers`, and `get_all_employees` are never used
[INFO] [stderr]   --> src/hash_map.rs:17:12
[INFO] [stderr]    |
[INFO] [stderr] 16 | impl Employees {
[INFO] [stderr]    | -------------- associated items in this implementation
[INFO] [stderr] 17 |     pub fn new() -> Employees {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] ...
[INFO] [stderr] 21 |     pub fn add_employer(&mut self, name: String, department: Department) {
[INFO] [stderr]    |            ^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 39 |     pub fn get_employers(&self, from: Department) -> Option<&Vec<String>> {
[INFO] [stderr]    |            ^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 43 |     pub fn get_all_employees(&mut self) -> Vec<&String> {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variants `Red` and `Blue` are never constructed
[INFO] [stderr]  --> src/shirt_inventory.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | pub enum ShirtColor  {
[INFO] [stderr]   |          ---------- variants in this enum
[INFO] [stderr] 3 |     Red,
[INFO] [stderr]   |     ^^^
[INFO] [stderr] 4 |     Blue,
[INFO] [stderr]   |     ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `ShirtColor` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Inventory` is never constructed
[INFO] [stderr]  --> src/shirt_inventory.rs:7:12
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub struct Inventory {
[INFO] [stderr]   |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: methods `giveaway` and `most_stocked` are never used
[INFO] [stderr]   --> src/shirt_inventory.rs:12:12
[INFO] [stderr]    |
[INFO] [stderr] 11 | impl Inventory {
[INFO] [stderr]    | -------------- methods in this implementation
[INFO] [stderr] 12 |     pub fn giveaway(&self, user_preference: Option<ShirtColor>) -> ShirtColor {
[INFO] [stderr]    |            ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 16 |     fn most_stocked(&self) -> ShirtColor {
[INFO] [stderr]    |        ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `List` is never used
[INFO] [stderr]  --> src/ref_cell.rs:6:6
[INFO] [stderr]   |
[INFO] [stderr] 6 | enum List{
[INFO] [stderr]   |      ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `create_ref_cell` is never used
[INFO] [stderr]   --> src/ref_cell.rs:11:8
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub fn create_ref_cell() {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `List` is never used
[INFO] [stderr]  --> src/retain_cycle.rs:6:6
[INFO] [stderr]   |
[INFO] [stderr] 6 | enum List{
[INFO] [stderr]   |      ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `tail` is never used
[INFO] [stderr]   --> src/retain_cycle.rs:12:8
[INFO] [stderr]    |
[INFO] [stderr] 11 | impl List {
[INFO] [stderr]    | --------- method in this implementation
[INFO] [stderr] 12 |     fn tail(&self) -> Option<&RefCell<Rc<List>>> {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `retain_cycle` is never used
[INFO] [stderr]   --> src/retain_cycle.rs:20:8
[INFO] [stderr]    |
[INFO] [stderr] 20 | pub fn retain_cycle() {
[INFO] [stderr]    |        ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Node` is never constructed
[INFO] [stderr]  --> src/weak_reference.rs:7:8
[INFO] [stderr]   |
[INFO] [stderr] 7 | struct Node {
[INFO] [stderr]   |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `use_weak_ref` is never used
[INFO] [stderr]   --> src/weak_reference.rs:13:8
[INFO] [stderr]    |
[INFO] [stderr] 13 | pub fn use_weak_ref() {
[INFO] [stderr]    |        ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `create_new_thread` is never used
[INFO] [stderr]  --> src/thread.rs:5:8
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn create_new_thread() {
[INFO] [stderr]   |        ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `move_prop` is never used
[INFO] [stderr]   --> src/thread.rs:22:8
[INFO] [stderr]    |
[INFO] [stderr] 22 | pub fn move_prop(){
[INFO] [stderr]    |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `create_channel` is never used
[INFO] [stderr]   --> src/thread.rs:31:8
[INFO] [stderr]    |
[INFO] [stderr] 31 | pub fn create_channel() {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `rust` (bin "rust" test) generated 57 warnings (run `cargo fix --bin "rust" --tests` to apply 16 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rust-499f23bdbaf72caa)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test rectangle::tests::is_ne ... ignored
[INFO] [stdout] test rectangle::tests::larger_can_hold_smaller ... ok
[INFO] [stdout] test rectangle::tests::smaller_cannt_hold_larger ... ok
[INFO] [stdout] test rectangle::tests::is_equal ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "6718d42fce3d918819d0323121612adbd1a51a8c0a815b4d91bf9fc961969ae6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6718d42fce3d918819d0323121612adbd1a51a8c0a815b4d91bf9fc961969ae6", kill_on_drop: false }`
[INFO] [stdout] 6718d42fce3d918819d0323121612adbd1a51a8c0a815b4d91bf9fc961969ae6