[INFO] cloning repository https://github.com/sulabhkothari/SkRustLearn
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sulabhkothari/SkRustLearn" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsulabhkothari%2FSkRustLearn", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsulabhkothari%2FSkRustLearn'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0593d5dce8c4c97bb399ff38bf37f803bb3f8e72
[INFO] checking sulabhkothari/SkRustLearn against try#a7a572ce3edd6d476191fbfe92c9c1986e009b34 for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsulabhkothari%2FSkRustLearn" "/workspace/builds/worker-71/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-71/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sulabhkothari/SkRustLearn on toolchain a7a572ce3edd6d476191fbfe92c9c1986e009b34
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/sulabhkothari/SkRustLearn
[INFO] finished tweaking git repo https://github.com/sulabhkothari/SkRustLearn
[INFO] tweaked toml for git repo https://github.com/sulabhkothari/SkRustLearn written to /workspace/builds/worker-71/source/Cargo.toml
[INFO] crate git repo https://github.com/sulabhkothari/SkRustLearn already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7c72aeb3dc1085b30a398437e80ddc74adb5ee6d330e0d13536a6069c402c0ac
[INFO] running `Command { std: "docker" "start" "-a" "7c72aeb3dc1085b30a398437e80ddc74adb5ee6d330e0d13536a6069c402c0ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7c72aeb3dc1085b30a398437e80ddc74adb5ee6d330e0d13536a6069c402c0ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c72aeb3dc1085b30a398437e80ddc74adb5ee6d330e0d13536a6069c402c0ac", kill_on_drop: false }`
[INFO] [stdout] 7c72aeb3dc1085b30a398437e80ddc74adb5ee6d330e0d13536a6069c402c0ac
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bd903221805cf1c7c2687fcf6088b3696d154c1e6c94ff1f668728770f87e5d1
[INFO] running `Command { std: "docker" "start" "-a" "bd903221805cf1c7c2687fcf6088b3696d154c1e6c94ff1f668728770f87e5d1", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] Running `cargo fix --edition`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.67
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking SkRustLearn v0.1.0 (/tmp/fixit)
[INFO] [stderr]    Migrating src/lib.rs from 2018 edition to 2021
[INFO] [stderr]        Fixed src/multithreaded_web_server.rs (1 fix)
[INFO] [stderr]        Fixed src/fearless_concurrency.rs (2 fixes)
[INFO] [stderr]        Fixed src/object_oriented.rs (1 fix)
[INFO] [stderr]        Fixed src/advanced_features.rs (4 fixes)
[INFO] [stderr]        Fixed src/pattern_matching.rs (9 fixes)
[INFO] [stderr]        Fixed src/smart_pointers.rs (7 fixes)
[INFO] [stdout] warning: the item `MemoryLeakingCons` is imported redundantly
[INFO] [stdout]    --> src/smart_pointers.rs:217:13
[INFO] [stdout]     |
[INFO] [stdout] 117 | use crate::smart_pointers::MemoryLeakingList::{MemoryLeakingCons, MemoryLeakingNil};
[INFO] [stdout]     |                                                ----------------- the item `MemoryLeakingCons` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 217 |         use crate::smart_pointers::MemoryLeakingList::MemoryLeakingCons;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `MemoryLeakingCons` is imported redundantly
[INFO] [stdout]    --> src/smart_pointers.rs:217:13
[INFO] [stdout]     |
[INFO] [stdout] 117 | use crate::smart_pointers::MemoryLeakingList::{MemoryLeakingCons, MemoryLeakingNil};
[INFO] [stdout]     |                                                ----------------- the item `MemoryLeakingCons` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 217 |         use crate::smart_pointers::MemoryLeakingList::MemoryLeakingCons;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `likely_crash`
[INFO] [stdout]    --> src/advanced_features.rs:104:4
[INFO] [stdout]     |
[INFO] [stdout] 104 | fn likely_crash() {
[INFO] [stdout]     |    ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `Thunk`
[INFO] [stdout]    --> src/advanced_features.rs:315:1
[INFO] [stdout]     |
[INFO] [stdout] 315 | type Thunk = Box<dyn Fn() + Send + 'static>;
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `Result`
[INFO] [stdout]    --> src/advanced_features.rs:316:1
[INFO] [stdout]     |
[INFO] [stdout] 316 | type Result<T> = std::result::Result<T, std::io::Error>;
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Stop`
[INFO] [stdout]    --> src/advanced_features.rs:454:9
[INFO] [stdout]     |
[INFO] [stdout] 454 |         Stop,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Quit`
[INFO] [stdout]    --> src/advanced_features.rs:455:9
[INFO] [stdout]     |
[INFO] [stdout] 455 |         Quit { a: i32 },
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `send_multiple_msg_over_channel`
[INFO] [stdout]   --> src/fearless_concurrency.rs:82:4
[INFO] [stdout]    |
[INFO] [stdout] 82 | fn send_multiple_msg_over_channel() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Rgb`
[INFO] [stdout]    --> src/pattern_matching.rs:164:9
[INFO] [stdout]     |
[INFO] [stdout] 164 |         Rgb(i32, i32, i32),
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Quit`
[INFO] [stdout]    --> src/pattern_matching.rs:169:9
[INFO] [stdout]     |
[INFO] [stdout] 169 |         Quit,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Move`
[INFO] [stdout]    --> src/pattern_matching.rs:170:9
[INFO] [stdout]     |
[INFO] [stdout] 170 |         Move { x: i32, y: i32 },
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Write`
[INFO] [stdout]    --> src/pattern_matching.rs:171:9
[INFO] [stdout]     |
[INFO] [stdout] 171 |         Write(String),
[INFO] [stdout]     |         ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `y`
[INFO] [stdout]    --> src/pattern_matching.rs:245:9
[INFO] [stdout]     |
[INFO] [stdout] 245 |         y: i32,
[INFO] [stdout]     |         ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `z`
[INFO] [stdout]    --> src/pattern_matching.rs:246:9
[INFO] [stdout]     |
[INFO] [stdout] 246 |         z: i32,
[INFO] [stdout]     |         ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `LL`
[INFO] [stdout]    --> src/smart_pointers.rs:193:6
[INFO] [stdout]     |
[INFO] [stdout] 193 | enum LL {
[INFO] [stdout]     |      ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `last`
[INFO] [stdout]    --> src/smart_pointers.rs:199:8
[INFO] [stdout]     |
[INFO] [stdout] 199 |     fn last(&self) {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `likely_crash`
[INFO] [stdout]    --> src/advanced_features.rs:104:4
[INFO] [stdout]     |
[INFO] [stdout] 104 | fn likely_crash() {
[INFO] [stdout]     |    ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `Thunk`
[INFO] [stdout]    --> src/advanced_features.rs:315:1
[INFO] [stdout]     |
[INFO] [stdout] 315 | type Thunk = Box<dyn Fn() + Send + 'static>;
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `Result`
[INFO] [stdout]    --> src/advanced_features.rs:316:1
[INFO] [stdout]     |
[INFO] [stdout] 316 | type Result<T> = std::result::Result<T, std::io::Error>;
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Stop`
[INFO] [stdout]    --> src/advanced_features.rs:454:9
[INFO] [stdout]     |
[INFO] [stdout] 454 |         Stop,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Quit`
[INFO] [stdout]    --> src/advanced_features.rs:455:9
[INFO] [stdout]     |
[INFO] [stdout] 455 |         Quit { a: i32 },
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `send_multiple_msg_over_channel`
[INFO] [stdout]   --> src/fearless_concurrency.rs:82:4
[INFO] [stdout]    |
[INFO] [stdout] 82 | fn send_multiple_msg_over_channel() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Rgb`
[INFO] [stdout]    --> src/pattern_matching.rs:164:9
[INFO] [stdout]     |
[INFO] [stdout] 164 |         Rgb(i32, i32, i32),
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Quit`
[INFO] [stdout]    --> src/pattern_matching.rs:169:9
[INFO] [stdout]     |
[INFO] [stdout] 169 |         Quit,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Move`
[INFO] [stdout]    --> src/pattern_matching.rs:170:9
[INFO] [stdout]     |
[INFO] [stdout] 170 |         Move { x: i32, y: i32 },
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Write`
[INFO] [stdout]    --> src/pattern_matching.rs:171:9
[INFO] [stdout]     |
[INFO] [stdout] 171 |         Write(String),
[INFO] [stdout]     |         ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `y`
[INFO] [stdout]    --> src/pattern_matching.rs:245:9
[INFO] [stdout]     |
[INFO] [stdout] 245 |         y: i32,
[INFO] [stdout]     |         ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `z`
[INFO] [stdout]    --> src/pattern_matching.rs:246:9
[INFO] [stdout]     |
[INFO] [stdout] 246 |         z: i32,
[INFO] [stdout]     |         ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `LL`
[INFO] [stdout]    --> src/smart_pointers.rs:193:6
[INFO] [stdout]     |
[INFO] [stdout] 193 | enum LL {
[INFO] [stdout]     |      ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `last`
[INFO] [stdout]    --> src/smart_pointers.rs:199:8
[INFO] [stdout]     |
[INFO] [stdout] 199 |     fn last(&self) {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `typedPost` should have a snake case name
[INFO] [stdout]   --> src/object_oriented.rs:41:13
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let mut typedPost = TypedPost::new();
[INFO] [stdout]    |             ^^^^^^^^^ help: convert the identifier to snake case: `typed_post`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `typedPost` should have a snake case name
[INFO] [stdout]   --> src/object_oriented.rs:45:9
[INFO] [stdout]    |
[INFO] [stdout] 45 |     let typedPost = typedPost.request_review();
[INFO] [stdout]    |         ^^^^^^^^^ help: convert the identifier to snake case: `typed_post`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `typedPost` should have a snake case name
[INFO] [stdout]   --> src/object_oriented.rs:47:9
[INFO] [stdout]    |
[INFO] [stdout] 47 |     let typedPost = typedPost.approve();
[INFO] [stdout]    |         ^^^^^^^^^ help: convert the identifier to snake case: `typed_post`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `_Nil` should have a snake case name
[INFO] [stdout]    --> src/smart_pointers.rs:204:13
[INFO] [stdout]     |
[INFO] [stdout] 204 |             _Nil => println!(""),
[INFO] [stdout]     |             ^^^^ help: convert the identifier to snake case: `_nil`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `_Nil` should have a snake case name
[INFO] [stdout]    --> src/smart_pointers.rs:220:13
[INFO] [stdout]     |
[INFO] [stdout] 220 |             _Nil => None,
[INFO] [stdout]     |             ^^^^ help: convert the identifier to snake case: `_nil`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `typedPost` should have a snake case name
[INFO] [stdout]   --> src/object_oriented.rs:41:13
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let mut typedPost = TypedPost::new();
[INFO] [stdout]    |             ^^^^^^^^^ help: convert the identifier to snake case: `typed_post`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `typedPost` should have a snake case name
[INFO] [stdout]   --> src/object_oriented.rs:45:9
[INFO] [stdout]    |
[INFO] [stdout] 45 |     let typedPost = typedPost.request_review();
[INFO] [stdout]    |         ^^^^^^^^^ help: convert the identifier to snake case: `typed_post`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `typedPost` should have a snake case name
[INFO] [stdout]   --> src/object_oriented.rs:47:9
[INFO] [stdout]    |
[INFO] [stdout] 47 |     let typedPost = typedPost.approve();
[INFO] [stdout]    |         ^^^^^^^^^ help: convert the identifier to snake case: `typed_post`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `_Nil` should have a snake case name
[INFO] [stdout]    --> src/smart_pointers.rs:204:13
[INFO] [stdout]     |
[INFO] [stdout] 204 |             _Nil => println!(""),
[INFO] [stdout]     |             ^^^^ help: convert the identifier to snake case: `_nil`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `_Nil` should have a snake case name
[INFO] [stdout]    --> src/smart_pointers.rs:220:13
[INFO] [stdout]     |
[INFO] [stdout] 220 |             _Nil => None,
[INFO] [stdout]     |             ^^^^ help: convert the identifier to snake case: `_nil`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 20 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 20 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Migrating src/bin.rs from 2018 edition to 2021
[INFO] [stderr]        Fixed src/bin.rs (13 fixes)
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/bin.rs:541:13
[INFO] [stdout]     |
[INFO] [stdout] 541 |             _ => None,
[INFO] [stdout]     |             ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/bin.rs:541:13
[INFO] [stdout]     |
[INFO] [stdout] 541 |             _ => None,
[INFO] [stdout]     |             ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `guessing_game`
[INFO] [stdout]   --> src/bin.rs:12:4
[INFO] [stdout]    |
[INFO] [stdout] 12 | fn guessing_game() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `five`
[INFO] [stdout]   --> src/bin.rs:43:4
[INFO] [stdout]    |
[INFO] [stdout] 43 | fn five() -> i32 {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `data_types`
[INFO] [stdout]   --> src/bin.rs:47:4
[INFO] [stdout]    |
[INFO] [stdout] 47 | fn data_types() {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `control_flows`
[INFO] [stdout]   --> src/bin.rs:70:4
[INFO] [stdout]    |
[INFO] [stdout] 70 | fn control_flows() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `loops`
[INFO] [stdout]    --> src/bin.rs:100:4
[INFO] [stdout]     |
[INFO] [stdout] 100 | fn loops() {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `ownership`
[INFO] [stdout]    --> src/bin.rs:152:4
[INFO] [stdout]     |
[INFO] [stdout] 152 | fn ownership() {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `dangle`
[INFO] [stdout]    --> src/bin.rs:250:4
[INFO] [stdout]     |
[INFO] [stdout] 250 | fn dangle() -> String /*&String*/ {
[INFO] [stdout]     |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `change`
[INFO] [stdout]    --> src/bin.rs:258:4
[INFO] [stdout]     |
[INFO] [stdout] 258 | fn change(some_string: &mut String) {
[INFO] [stdout]     |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `calculate_length_by_borrowing`
[INFO] [stdout]    --> src/bin.rs:262:4
[INFO] [stdout]     |
[INFO] [stdout] 262 | fn calculate_length_by_borrowing(s: &String) -> usize {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `calculate_length`
[INFO] [stdout]    --> src/bin.rs:266:4
[INFO] [stdout]     |
[INFO] [stdout] 266 | fn calculate_length(s: String) -> (String, usize) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `gives_ownership`
[INFO] [stdout]    --> src/bin.rs:272:4
[INFO] [stdout]     |
[INFO] [stdout] 272 | fn gives_ownership() -> String {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `takes_and_gives_back`
[INFO] [stdout]    --> src/bin.rs:285:4
[INFO] [stdout]     |
[INFO] [stdout] 285 | fn takes_and_gives_back(a_string: String) -> String {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `takes_ownership`
[INFO] [stdout]    --> src/bin.rs:292:4
[INFO] [stdout]     |
[INFO] [stdout] 292 | fn takes_ownership(some_string: String) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `makes_copy`
[INFO] [stdout]    --> src/bin.rs:298:4
[INFO] [stdout]     |
[INFO] [stdout] 298 | fn makes_copy(some_integer: i32) {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `slices`
[INFO] [stdout]    --> src/bin.rs:303:4
[INFO] [stdout]     |
[INFO] [stdout] 303 | fn slices() {
[INFO] [stdout]     |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `first_word`
[INFO] [stdout]    --> src/bin.rs:334:4
[INFO] [stdout]     |
[INFO] [stdout] 334 | fn first_word(s: &str) -> &str {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `build_user`
[INFO] [stdout]    --> src/bin.rs:356:4
[INFO] [stdout]     |
[INFO] [stdout] 356 | fn build_user(email: String, username: String) -> User {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `area`
[INFO] [stdout]    --> src/bin.rs:372:4
[INFO] [stdout]     |
[INFO] [stdout] 372 | fn area(rectangle: &Rectangle) -> u32 {
[INFO] [stdout]     |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `calculateArea`
[INFO] [stdout]    --> src/bin.rs:377:8
[INFO] [stdout]     |
[INFO] [stdout] 377 |     fn calculateArea(&self) -> u32 {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `can_hold`
[INFO] [stdout]    --> src/bin.rs:381:8
[INFO] [stdout]     |
[INFO] [stdout] 381 |     fn can_hold(&self, other: &Rectangle) -> bool {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `square`
[INFO] [stdout]    --> src/bin.rs:386:8
[INFO] [stdout]     |
[INFO] [stdout] 386 |     fn square(size: u32) -> Rectangle {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `structures`
[INFO] [stdout]    --> src/bin.rs:422:4
[INFO] [stdout]     |
[INFO] [stdout] 422 | fn structures() {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Quit`
[INFO] [stdout]    --> src/bin.rs:478:5
[INFO] [stdout]     |
[INFO] [stdout] 478 |     Quit,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Move`
[INFO] [stdout]    --> src/bin.rs:479:5
[INFO] [stdout]     |
[INFO] [stdout] 479 |     Move { x: i32, y: i32 },
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Write`
[INFO] [stdout]    --> src/bin.rs:481:5
[INFO] [stdout]     |
[INFO] [stdout] 481 |     Write(String),
[INFO] [stdout]     |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `ChangeColor`
[INFO] [stdout]    --> src/bin.rs:483:5
[INFO] [stdout]     |
[INFO] [stdout] 483 |     ChangeColor(i32, i32, i32), //Tuple
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `call`
[INFO] [stdout]    --> src/bin.rs:487:8
[INFO] [stdout]     |
[INFO] [stdout] 487 |     fn call(&self) {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Alabama`
[INFO] [stdout]    --> src/bin.rs:494:5
[INFO] [stdout]     |
[INFO] [stdout] 494 |     Alabama,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Alaska`
[INFO] [stdout]    --> src/bin.rs:495:5
[INFO] [stdout]     |
[INFO] [stdout] 495 |     Alaska,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `California`
[INFO] [stdout]    --> src/bin.rs:496:5
[INFO] [stdout]     |
[INFO] [stdout] 496 |     California,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Texas`
[INFO] [stdout]    --> src/bin.rs:497:5
[INFO] [stdout]     |
[INFO] [stdout] 497 |     Texas,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `Coin`
[INFO] [stdout]    --> src/bin.rs:500:6
[INFO] [stdout]     |
[INFO] [stdout] 500 | enum Coin {
[INFO] [stdout]     |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `value_in_cents`
[INFO] [stdout]    --> src/bin.rs:508:8
[INFO] [stdout]     |
[INFO] [stdout] 508 |     fn value_in_cents(&self) -> u8 {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `enums`
[INFO] [stdout]    --> src/bin.rs:521:4
[INFO] [stdout]     |
[INFO] [stdout] 521 | fn enums() {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `smart_pointers23`
[INFO] [stdout]    --> src/bin.rs:578:4
[INFO] [stdout]     |
[INFO] [stdout] 578 | fn smart_pointers23() {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate `SkRustLearnBin` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout]   = help: convert the identifier to snake case: `sk_rust_learn_bin`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `calculateArea` should have a snake case name
[INFO] [stdout]    --> src/bin.rs:377:8
[INFO] [stdout]     |
[INFO] [stdout] 377 |     fn calculateArea(&self) -> u32 {
[INFO] [stdout]     |        ^^^^^^^^^^^^^ help: convert the identifier to snake case: `calculate_area`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 38 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `guessing_game`
[INFO] [stdout]   --> src/bin.rs:12:4
[INFO] [stdout]    |
[INFO] [stdout] 12 | fn guessing_game() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `five`
[INFO] [stdout]   --> src/bin.rs:43:4
[INFO] [stdout]    |
[INFO] [stdout] 43 | fn five() -> i32 {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `data_types`
[INFO] [stdout]   --> src/bin.rs:47:4
[INFO] [stdout]    |
[INFO] [stdout] 47 | fn data_types() {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `control_flows`
[INFO] [stdout]   --> src/bin.rs:70:4
[INFO] [stdout]    |
[INFO] [stdout] 70 | fn control_flows() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `loops`
[INFO] [stdout]    --> src/bin.rs:100:4
[INFO] [stdout]     |
[INFO] [stdout] 100 | fn loops() {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `ownership`
[INFO] [stdout]    --> src/bin.rs:152:4
[INFO] [stdout]     |
[INFO] [stdout] 152 | fn ownership() {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `dangle`
[INFO] [stdout]    --> src/bin.rs:250:4
[INFO] [stdout]     |
[INFO] [stdout] 250 | fn dangle() -> String /*&String*/ {
[INFO] [stdout]     |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `change`
[INFO] [stdout]    --> src/bin.rs:258:4
[INFO] [stdout]     |
[INFO] [stdout] 258 | fn change(some_string: &mut String) {
[INFO] [stdout]     |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `calculate_length_by_borrowing`
[INFO] [stdout]    --> src/bin.rs:262:4
[INFO] [stdout]     |
[INFO] [stdout] 262 | fn calculate_length_by_borrowing(s: &String) -> usize {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `calculate_length`
[INFO] [stdout]    --> src/bin.rs:266:4
[INFO] [stdout]     |
[INFO] [stdout] 266 | fn calculate_length(s: String) -> (String, usize) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `gives_ownership`
[INFO] [stdout]    --> src/bin.rs:272:4
[INFO] [stdout]     |
[INFO] [stdout] 272 | fn gives_ownership() -> String {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `takes_and_gives_back`
[INFO] [stdout]    --> src/bin.rs:285:4
[INFO] [stdout]     |
[INFO] [stdout] 285 | fn takes_and_gives_back(a_string: String) -> String {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `takes_ownership`
[INFO] [stdout]    --> src/bin.rs:292:4
[INFO] [stdout]     |
[INFO] [stdout] 292 | fn takes_ownership(some_string: String) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `makes_copy`
[INFO] [stdout]    --> src/bin.rs:298:4
[INFO] [stdout]     |
[INFO] [stdout] 298 | fn makes_copy(some_integer: i32) {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `slices`
[INFO] [stdout]    --> src/bin.rs:303:4
[INFO] [stdout]     |
[INFO] [stdout] 303 | fn slices() {
[INFO] [stdout]     |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `first_word`
[INFO] [stdout]    --> src/bin.rs:334:4
[INFO] [stdout]     |
[INFO] [stdout] 334 | fn first_word(s: &str) -> &str {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `build_user`
[INFO] [stdout]    --> src/bin.rs:356:4
[INFO] [stdout]     |
[INFO] [stdout] 356 | fn build_user(email: String, username: String) -> User {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `area`
[INFO] [stdout]    --> src/bin.rs:372:4
[INFO] [stdout]     |
[INFO] [stdout] 372 | fn area(rectangle: &Rectangle) -> u32 {
[INFO] [stdout]     |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `calculateArea`
[INFO] [stdout]    --> src/bin.rs:377:8
[INFO] [stdout]     |
[INFO] [stdout] 377 |     fn calculateArea(&self) -> u32 {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `can_hold`
[INFO] [stdout]    --> src/bin.rs:381:8
[INFO] [stdout]     |
[INFO] [stdout] 381 |     fn can_hold(&self, other: &Rectangle) -> bool {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `square`
[INFO] [stdout]    --> src/bin.rs:386:8
[INFO] [stdout]     |
[INFO] [stdout] 386 |     fn square(size: u32) -> Rectangle {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `structures`
[INFO] [stdout]    --> src/bin.rs:422:4
[INFO] [stdout]     |
[INFO] [stdout] 422 | fn structures() {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Quit`
[INFO] [stdout]    --> src/bin.rs:478:5
[INFO] [stdout]     |
[INFO] [stdout] 478 |     Quit,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Move`
[INFO] [stdout]    --> src/bin.rs:479:5
[INFO] [stdout]     |
[INFO] [stdout] 479 |     Move { x: i32, y: i32 },
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Write`
[INFO] [stdout]    --> src/bin.rs:481:5
[INFO] [stdout]     |
[INFO] [stdout] 481 |     Write(String),
[INFO] [stdout]     |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `ChangeColor`
[INFO] [stdout]    --> src/bin.rs:483:5
[INFO] [stdout]     |
[INFO] [stdout] 483 |     ChangeColor(i32, i32, i32), //Tuple
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `call`
[INFO] [stdout]    --> src/bin.rs:487:8
[INFO] [stdout]     |
[INFO] [stdout] 487 |     fn call(&self) {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Alabama`
[INFO] [stdout]    --> src/bin.rs:494:5
[INFO] [stdout]     |
[INFO] [stdout] 494 |     Alabama,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Alaska`
[INFO] [stdout]    --> src/bin.rs:495:5
[INFO] [stdout]     |
[INFO] [stdout] 495 |     Alaska,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `California`
[INFO] [stdout]    --> src/bin.rs:496:5
[INFO] [stdout]     |
[INFO] [stdout] 496 |     California,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Texas`
[INFO] [stdout]    --> src/bin.rs:497:5
[INFO] [stdout]     |
[INFO] [stdout] 497 |     Texas,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `Coin`
[INFO] [stdout]    --> src/bin.rs:500:6
[INFO] [stdout]     |
[INFO] [stdout] 500 | enum Coin {
[INFO] [stdout]     |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `value_in_cents`
[INFO] [stdout]    --> src/bin.rs:508:8
[INFO] [stdout]     |
[INFO] [stdout] 508 |     fn value_in_cents(&self) -> u8 {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `enums`
[INFO] [stdout]    --> src/bin.rs:521:4
[INFO] [stdout]     |
[INFO] [stdout] 521 | fn enums() {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `smart_pointers23`
[INFO] [stdout]    --> src/bin.rs:578:4
[INFO] [stdout]     |
[INFO] [stdout] 578 | fn smart_pointers23() {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate `SkRustLearnBin` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout]   = help: convert the identifier to snake case: `sk_rust_learn_bin`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `calculateArea` should have a snake case name
[INFO] [stdout]    --> src/bin.rs:377:8
[INFO] [stdout]     |
[INFO] [stdout] 377 |     fn calculateArea(&self) -> u32 {
[INFO] [stdout]     |        ^^^^^^^^^^^^^ help: convert the identifier to snake case: `calculate_area`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 38 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.52s
[INFO] [stderr] Running `cargo check` to verify 2021
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking SkRustLearn v0.1.0 (/tmp/fixit)
[INFO] [stdout] warning: the item `MemoryLeakingCons` is imported redundantly
[INFO] [stdout]    --> src/smart_pointers.rs:217:13
[INFO] [stdout]     |
[INFO] [stdout] 117 | use crate::smart_pointers::MemoryLeakingList::{MemoryLeakingCons, MemoryLeakingNil};
[INFO] [stdout]     |                                                ----------------- the item `MemoryLeakingCons` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 217 |         use crate::smart_pointers::MemoryLeakingList::MemoryLeakingCons;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `MemoryLeakingCons` is imported redundantly
[INFO] [stdout]    --> src/smart_pointers.rs:217:13
[INFO] [stdout]     |
[INFO] [stdout] 117 | use crate::smart_pointers::MemoryLeakingList::{MemoryLeakingCons, MemoryLeakingNil};
[INFO] [stdout]     |                                                ----------------- the item `MemoryLeakingCons` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 217 |         use crate::smart_pointers::MemoryLeakingList::MemoryLeakingCons;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `likely_crash`
[INFO] [stdout]    --> src/advanced_features.rs:104:4
[INFO] [stdout]     |
[INFO] [stdout] 104 | fn likely_crash() {
[INFO] [stdout]     |    ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `Thunk`
[INFO] [stdout]    --> src/advanced_features.rs:315:1
[INFO] [stdout]     |
[INFO] [stdout] 315 | type Thunk = Box<dyn Fn() + Send + 'static>;
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `Result`
[INFO] [stdout]    --> src/advanced_features.rs:316:1
[INFO] [stdout]     |
[INFO] [stdout] 316 | type Result<T> = std::result::Result<T, std::io::Error>;
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Stop`
[INFO] [stdout]    --> src/advanced_features.rs:454:9
[INFO] [stdout]     |
[INFO] [stdout] 454 |         Stop,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Quit`
[INFO] [stdout]    --> src/advanced_features.rs:455:9
[INFO] [stdout]     |
[INFO] [stdout] 455 |         Quit { a: i32 },
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `send_multiple_msg_over_channel`
[INFO] [stdout]   --> src/fearless_concurrency.rs:82:4
[INFO] [stdout]    |
[INFO] [stdout] 82 | fn send_multiple_msg_over_channel() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Rgb`
[INFO] [stdout]    --> src/pattern_matching.rs:164:9
[INFO] [stdout]     |
[INFO] [stdout] 164 |         Rgb(i32, i32, i32),
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Quit`
[INFO] [stdout]    --> src/pattern_matching.rs:169:9
[INFO] [stdout]     |
[INFO] [stdout] 169 |         Quit,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Move`
[INFO] [stdout]    --> src/pattern_matching.rs:170:9
[INFO] [stdout]     |
[INFO] [stdout] 170 |         Move { x: i32, y: i32 },
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Write`
[INFO] [stdout]    --> src/pattern_matching.rs:171:9
[INFO] [stdout]     |
[INFO] [stdout] 171 |         Write(String),
[INFO] [stdout]     |         ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `y`
[INFO] [stdout]    --> src/pattern_matching.rs:245:9
[INFO] [stdout]     |
[INFO] [stdout] 245 |         y: i32,
[INFO] [stdout]     |         ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `z`
[INFO] [stdout]    --> src/pattern_matching.rs:246:9
[INFO] [stdout]     |
[INFO] [stdout] 246 |         z: i32,
[INFO] [stdout]     |         ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `LL`
[INFO] [stdout]    --> src/smart_pointers.rs:193:6
[INFO] [stdout]     |
[INFO] [stdout] 193 | enum LL {
[INFO] [stdout]     |      ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `last`
[INFO] [stdout]    --> src/smart_pointers.rs:199:8
[INFO] [stdout]     |
[INFO] [stdout] 199 |     fn last(&self) {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `typedPost` should have a snake case name
[INFO] [stdout]   --> src/object_oriented.rs:41:13
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let mut typedPost = TypedPost::new();
[INFO] [stdout]    |             ^^^^^^^^^ help: convert the identifier to snake case: `typed_post`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `typedPost` should have a snake case name
[INFO] [stdout]   --> src/object_oriented.rs:45:9
[INFO] [stdout]    |
[INFO] [stdout] 45 |     let typedPost = typedPost.request_review();
[INFO] [stdout]    |         ^^^^^^^^^ help: convert the identifier to snake case: `typed_post`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `typedPost` should have a snake case name
[INFO] [stdout]   --> src/object_oriented.rs:47:9
[INFO] [stdout]    |
[INFO] [stdout] 47 |     let typedPost = typedPost.approve();
[INFO] [stdout]    |         ^^^^^^^^^ help: convert the identifier to snake case: `typed_post`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `_Nil` should have a snake case name
[INFO] [stdout]    --> src/smart_pointers.rs:204:13
[INFO] [stdout]     |
[INFO] [stdout] 204 |             _Nil => println!(""),
[INFO] [stdout]     |             ^^^^ help: convert the identifier to snake case: `_nil`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `_Nil` should have a snake case name
[INFO] [stdout]    --> src/smart_pointers.rs:220:13
[INFO] [stdout]     |
[INFO] [stdout] 220 |             _Nil => None,
[INFO] [stdout]     |             ^^^^ help: convert the identifier to snake case: `_nil`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 20 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `likely_crash`
[INFO] [stdout]    --> src/advanced_features.rs:104:4
[INFO] [stdout]     |
[INFO] [stdout] 104 | fn likely_crash() {
[INFO] [stdout]     |    ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `Thunk`
[INFO] [stdout]    --> src/advanced_features.rs:315:1
[INFO] [stdout]     |
[INFO] [stdout] 315 | type Thunk = Box<dyn Fn() + Send + 'static>;
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `Result`
[INFO] [stdout]    --> src/advanced_features.rs:316:1
[INFO] [stdout]     |
[INFO] [stdout] 316 | type Result<T> = std::result::Result<T, std::io::Error>;
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Stop`
[INFO] [stdout]    --> src/advanced_features.rs:454:9
[INFO] [stdout]     |
[INFO] [stdout] 454 |         Stop,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Quit`
[INFO] [stdout]    --> src/advanced_features.rs:455:9
[INFO] [stdout]     |
[INFO] [stdout] 455 |         Quit { a: i32 },
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `send_multiple_msg_over_channel`
[INFO] [stdout]   --> src/fearless_concurrency.rs:82:4
[INFO] [stdout]    |
[INFO] [stdout] 82 | fn send_multiple_msg_over_channel() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Rgb`
[INFO] [stdout]    --> src/pattern_matching.rs:164:9
[INFO] [stdout]     |
[INFO] [stdout] 164 |         Rgb(i32, i32, i32),
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Quit`
[INFO] [stdout]    --> src/pattern_matching.rs:169:9
[INFO] [stdout]     |
[INFO] [stdout] 169 |         Quit,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Move`
[INFO] [stdout]    --> src/pattern_matching.rs:170:9
[INFO] [stdout]     |
[INFO] [stdout] 170 |         Move { x: i32, y: i32 },
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Write`
[INFO] [stdout]    --> src/pattern_matching.rs:171:9
[INFO] [stdout]     |
[INFO] [stdout] 171 |         Write(String),
[INFO] [stdout]     |         ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `y`
[INFO] [stdout]    --> src/pattern_matching.rs:245:9
[INFO] [stdout]     |
[INFO] [stdout] 245 |         y: i32,
[INFO] [stdout]     |         ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `z`
[INFO] [stdout]    --> src/pattern_matching.rs:246:9
[INFO] [stdout]     |
[INFO] [stdout] 246 |         z: i32,
[INFO] [stdout]     |         ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `LL`
[INFO] [stdout]    --> src/smart_pointers.rs:193:6
[INFO] [stdout]     |
[INFO] [stdout] 193 | enum LL {
[INFO] [stdout]     |      ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `last`
[INFO] [stdout]    --> src/smart_pointers.rs:199:8
[INFO] [stdout]     |
[INFO] [stdout] 199 |     fn last(&self) {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `typedPost` should have a snake case name
[INFO] [stdout]   --> src/object_oriented.rs:41:13
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let mut typedPost = TypedPost::new();
[INFO] [stdout]    |             ^^^^^^^^^ help: convert the identifier to snake case: `typed_post`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `typedPost` should have a snake case name
[INFO] [stdout]   --> src/object_oriented.rs:45:9
[INFO] [stdout]    |
[INFO] [stdout] 45 |     let typedPost = typedPost.request_review();
[INFO] [stdout]    |         ^^^^^^^^^ help: convert the identifier to snake case: `typed_post`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `typedPost` should have a snake case name
[INFO] [stdout]   --> src/object_oriented.rs:47:9
[INFO] [stdout]    |
[INFO] [stdout] 47 |     let typedPost = typedPost.approve();
[INFO] [stdout]    |         ^^^^^^^^^ help: convert the identifier to snake case: `typed_post`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `_Nil` should have a snake case name
[INFO] [stdout]    --> src/smart_pointers.rs:204:13
[INFO] [stdout]     |
[INFO] [stdout] 204 |             _Nil => println!(""),
[INFO] [stdout]     |             ^^^^ help: convert the identifier to snake case: `_nil`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `_Nil` should have a snake case name
[INFO] [stdout]    --> src/smart_pointers.rs:220:13
[INFO] [stdout]     |
[INFO] [stdout] 220 |             _Nil => None,
[INFO] [stdout]     |             ^^^^ help: convert the identifier to snake case: `_nil`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 20 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/bin.rs:541:13
[INFO] [stdout]     |
[INFO] [stdout] 541 |             _ => None,
[INFO] [stdout]     |             ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/bin.rs:541:13
[INFO] [stdout]     |
[INFO] [stdout] 541 |             _ => None,
[INFO] [stdout]     |             ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `guessing_game`
[INFO] [stdout]   --> src/bin.rs:12:4
[INFO] [stdout]    |
[INFO] [stdout] 12 | fn guessing_game() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `five`
[INFO] [stdout]   --> src/bin.rs:43:4
[INFO] [stdout]    |
[INFO] [stdout] 43 | fn five() -> i32 {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `data_types`
[INFO] [stdout]   --> src/bin.rs:47:4
[INFO] [stdout]    |
[INFO] [stdout] 47 | fn data_types() {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `control_flows`
[INFO] [stdout]   --> src/bin.rs:70:4
[INFO] [stdout]    |
[INFO] [stdout] 70 | fn control_flows() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `loops`
[INFO] [stdout]    --> src/bin.rs:100:4
[INFO] [stdout]     |
[INFO] [stdout] 100 | fn loops() {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `ownership`
[INFO] [stdout]    --> src/bin.rs:152:4
[INFO] [stdout]     |
[INFO] [stdout] 152 | fn ownership() {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `dangle`
[INFO] [stdout]    --> src/bin.rs:250:4
[INFO] [stdout]     |
[INFO] [stdout] 250 | fn dangle() -> String /*&String*/ {
[INFO] [stdout]     |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `change`
[INFO] [stdout]    --> src/bin.rs:258:4
[INFO] [stdout]     |
[INFO] [stdout] 258 | fn change(some_string: &mut String) {
[INFO] [stdout]     |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `calculate_length_by_borrowing`
[INFO] [stdout]    --> src/bin.rs:262:4
[INFO] [stdout]     |
[INFO] [stdout] 262 | fn calculate_length_by_borrowing(s: &String) -> usize {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `calculate_length`
[INFO] [stdout]    --> src/bin.rs:266:4
[INFO] [stdout]     |
[INFO] [stdout] 266 | fn calculate_length(s: String) -> (String, usize) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `gives_ownership`
[INFO] [stdout]    --> src/bin.rs:272:4
[INFO] [stdout]     |
[INFO] [stdout] 272 | fn gives_ownership() -> String {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `takes_and_gives_back`
[INFO] [stdout]    --> src/bin.rs:285:4
[INFO] [stdout]     |
[INFO] [stdout] 285 | fn takes_and_gives_back(a_string: String) -> String {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `takes_ownership`
[INFO] [stdout]    --> src/bin.rs:292:4
[INFO] [stdout]     |
[INFO] [stdout] 292 | fn takes_ownership(some_string: String) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `makes_copy`
[INFO] [stdout]    --> src/bin.rs:298:4
[INFO] [stdout]     |
[INFO] [stdout] 298 | fn makes_copy(some_integer: i32) {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `slices`
[INFO] [stdout]    --> src/bin.rs:303:4
[INFO] [stdout]     |
[INFO] [stdout] 303 | fn slices() {
[INFO] [stdout]     |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `first_word`
[INFO] [stdout]    --> src/bin.rs:334:4
[INFO] [stdout]     |
[INFO] [stdout] 334 | fn first_word(s: &str) -> &str {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `build_user`
[INFO] [stdout]    --> src/bin.rs:356:4
[INFO] [stdout]     |
[INFO] [stdout] 356 | fn build_user(email: String, username: String) -> User {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `area`
[INFO] [stdout]    --> src/bin.rs:372:4
[INFO] [stdout]     |
[INFO] [stdout] 372 | fn area(rectangle: &Rectangle) -> u32 {
[INFO] [stdout]     |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `calculateArea`
[INFO] [stdout]    --> src/bin.rs:377:8
[INFO] [stdout]     |
[INFO] [stdout] 377 |     fn calculateArea(&self) -> u32 {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `can_hold`
[INFO] [stdout]    --> src/bin.rs:381:8
[INFO] [stdout]     |
[INFO] [stdout] 381 |     fn can_hold(&self, other: &Rectangle) -> bool {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `square`
[INFO] [stdout]    --> src/bin.rs:386:8
[INFO] [stdout]     |
[INFO] [stdout] 386 |     fn square(size: u32) -> Rectangle {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `structures`
[INFO] [stdout]    --> src/bin.rs:422:4
[INFO] [stdout]     |
[INFO] [stdout] 422 | fn structures() {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Quit`
[INFO] [stdout]    --> src/bin.rs:478:5
[INFO] [stdout]     |
[INFO] [stdout] 478 |     Quit,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Move`
[INFO] [stdout]    --> src/bin.rs:479:5
[INFO] [stdout]     |
[INFO] [stdout] 479 |     Move { x: i32, y: i32 },
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `guessing_game`
[INFO] [stdout]   --> src/bin.rs:12:4
[INFO] [stdout]    |
[INFO] [stdout] 12 | fn guessing_game() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `five`
[INFO] [stdout]   --> src/bin.rs:43:4
[INFO] [stdout]    |
[INFO] [stdout] 43 | fn five() -> i32 {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `data_types`
[INFO] [stdout]   --> src/bin.rs:47:4
[INFO] [stdout]    |
[INFO] [stdout] 47 | fn data_types() {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `control_flows`
[INFO] [stdout]   --> src/bin.rs:70:4
[INFO] [stdout]    |
[INFO] [stdout] 70 | fn control_flows() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `loops`
[INFO] [stdout]    --> src/bin.rs:100:4
[INFO] [stdout]     |
[INFO] [stdout] 100 | fn loops() {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `ownership`
[INFO] [stdout]    --> src/bin.rs:152:4
[INFO] [stdout]     |
[INFO] [stdout] 152 | fn ownership() {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `dangle`
[INFO] [stdout]    --> src/bin.rs:250:4
[INFO] [stdout]     |
[INFO] [stdout] 250 | fn dangle() -> String /*&String*/ {
[INFO] [stdout]     |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Write`
[INFO] [stdout]    --> src/bin.rs:481:5
[INFO] [stdout]     |
[INFO] [stdout] 481 |     Write(String),
[INFO] [stdout]     |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `ChangeColor`
[INFO] [stdout]    --> src/bin.rs:483:5
[INFO] [stdout]     |
[INFO] [stdout] 483 |     ChangeColor(i32, i32, i32), //Tuple
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `change`
[INFO] [stdout]    --> src/bin.rs:258:4
[INFO] [stdout]     |
[INFO] [stdout] 258 | fn change(some_string: &mut String) {
[INFO] [stdout]     |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `call`
[INFO] [stdout]    --> src/bin.rs:487:8
[INFO] [stdout]     |
[INFO] [stdout] 487 |     fn call(&self) {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Alabama`
[INFO] [stdout]    --> src/bin.rs:494:5
[INFO] [stdout]     |
[INFO] [stdout] 494 |     Alabama,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Alaska`
[INFO] [stdout]    --> src/bin.rs:495:5
[INFO] [stdout]     |
[INFO] [stdout] 495 |     Alaska,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `California`
[INFO] [stdout]    --> src/bin.rs:496:5
[INFO] [stdout]     |
[INFO] [stdout] 496 |     California,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `calculate_length_by_borrowing`
[INFO] [stdout]    --> src/bin.rs:262:4
[INFO] [stdout]     |
[INFO] [stdout] 262 | fn calculate_length_by_borrowing(s: &String) -> usize {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Texas`
[INFO] [stdout]    --> src/bin.rs:497:5
[INFO] [stdout]     |
[INFO] [stdout] 497 |     Texas,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `Coin`
[INFO] [stdout]    --> src/bin.rs:500:6
[INFO] [stdout]     |
[INFO] [stdout] 500 | enum Coin {
[INFO] [stdout]     |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `value_in_cents`
[INFO] [stdout]    --> src/bin.rs:508:8
[INFO] [stdout]     |
[INFO] [stdout] 508 |     fn value_in_cents(&self) -> u8 {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `enums`
[INFO] [stdout]    --> src/bin.rs:521:4
[INFO] [stdout]     |
[INFO] [stdout] 521 | fn enums() {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `calculate_length`
[INFO] [stdout]    --> src/bin.rs:266:4
[INFO] [stdout]     |
[INFO] [stdout] 266 | fn calculate_length(s: String) -> (String, usize) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `smart_pointers23`
[INFO] [stdout]    --> src/bin.rs:578:4
[INFO] [stdout]     |
[INFO] [stdout] 578 | fn smart_pointers23() {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate `SkRustLearnBin` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout]   = help: convert the identifier to snake case: `sk_rust_learn_bin`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `calculateArea` should have a snake case name
[INFO] [stdout]    --> src/bin.rs:377:8
[INFO] [stdout]     |
[INFO] [stdout] 377 |     fn calculateArea(&self) -> u32 {
[INFO] [stdout]     |        ^^^^^^^^^^^^^ help: convert the identifier to snake case: `calculate_area`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 38 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `gives_ownership`
[INFO] [stdout]    --> src/bin.rs:272:4
[INFO] [stdout]     |
[INFO] [stdout] 272 | fn gives_ownership() -> String {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `takes_and_gives_back`
[INFO] [stdout]    --> src/bin.rs:285:4
[INFO] [stdout]     |
[INFO] [stdout] 285 | fn takes_and_gives_back(a_string: String) -> String {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `takes_ownership`
[INFO] [stdout]    --> src/bin.rs:292:4
[INFO] [stdout]     |
[INFO] [stdout] 292 | fn takes_ownership(some_string: String) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `makes_copy`
[INFO] [stdout]    --> src/bin.rs:298:4
[INFO] [stdout]     |
[INFO] [stdout] 298 | fn makes_copy(some_integer: i32) {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `slices`
[INFO] [stdout]    --> src/bin.rs:303:4
[INFO] [stdout]     |
[INFO] [stdout] 303 | fn slices() {
[INFO] [stdout]     |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `first_word`
[INFO] [stdout]    --> src/bin.rs:334:4
[INFO] [stdout]     |
[INFO] [stdout] 334 | fn first_word(s: &str) -> &str {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `build_user`
[INFO] [stdout]    --> src/bin.rs:356:4
[INFO] [stdout]     |
[INFO] [stdout] 356 | fn build_user(email: String, username: String) -> User {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `area`
[INFO] [stdout]    --> src/bin.rs:372:4
[INFO] [stdout]     |
[INFO] [stdout] 372 | fn area(rectangle: &Rectangle) -> u32 {
[INFO] [stdout]     |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `calculateArea`
[INFO] [stdout]    --> src/bin.rs:377:8
[INFO] [stdout]     |
[INFO] [stdout] 377 |     fn calculateArea(&self) -> u32 {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `can_hold`
[INFO] [stdout]    --> src/bin.rs:381:8
[INFO] [stdout]     |
[INFO] [stdout] 381 |     fn can_hold(&self, other: &Rectangle) -> bool {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `square`
[INFO] [stdout]    --> src/bin.rs:386:8
[INFO] [stdout]     |
[INFO] [stdout] 386 |     fn square(size: u32) -> Rectangle {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `structures`
[INFO] [stdout]    --> src/bin.rs:422:4
[INFO] [stdout]     |
[INFO] [stdout] 422 | fn structures() {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Quit`
[INFO] [stdout]    --> src/bin.rs:478:5
[INFO] [stdout]     |
[INFO] [stdout] 478 |     Quit,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Move`
[INFO] [stdout]    --> src/bin.rs:479:5
[INFO] [stdout]     |
[INFO] [stdout] 479 |     Move { x: i32, y: i32 },
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Write`
[INFO] [stdout]    --> src/bin.rs:481:5
[INFO] [stdout]     |
[INFO] [stdout] 481 |     Write(String),
[INFO] [stdout]     |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `ChangeColor`
[INFO] [stdout]    --> src/bin.rs:483:5
[INFO] [stdout]     |
[INFO] [stdout] 483 |     ChangeColor(i32, i32, i32), //Tuple
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `call`
[INFO] [stdout]    --> src/bin.rs:487:8
[INFO] [stdout]     |
[INFO] [stdout] 487 |     fn call(&self) {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Alabama`
[INFO] [stdout]    --> src/bin.rs:494:5
[INFO] [stdout]     |
[INFO] [stdout] 494 |     Alabama,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Alaska`
[INFO] [stdout]    --> src/bin.rs:495:5
[INFO] [stdout]     |
[INFO] [stdout] 495 |     Alaska,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `California`
[INFO] [stdout]    --> src/bin.rs:496:5
[INFO] [stdout]     |
[INFO] [stdout] 496 |     California,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Texas`
[INFO] [stdout]    --> src/bin.rs:497:5
[INFO] [stdout]     |
[INFO] [stdout] 497 |     Texas,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `Coin`
[INFO] [stdout]    --> src/bin.rs:500:6
[INFO] [stdout]     |
[INFO] [stdout] 500 | enum Coin {
[INFO] [stdout]     |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `value_in_cents`
[INFO] [stdout]    --> src/bin.rs:508:8
[INFO] [stdout]     |
[INFO] [stdout] 508 |     fn value_in_cents(&self) -> u8 {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `enums`
[INFO] [stdout]    --> src/bin.rs:521:4
[INFO] [stdout]     |
[INFO] [stdout] 521 | fn enums() {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `smart_pointers23`
[INFO] [stdout]    --> src/bin.rs:578:4
[INFO] [stdout]     |
[INFO] [stdout] 578 | fn smart_pointers23() {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate `SkRustLearnBin` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout]   = help: convert the identifier to snake case: `sk_rust_learn_bin`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `calculateArea` should have a snake case name
[INFO] [stdout]    --> src/bin.rs:377:8
[INFO] [stdout]     |
[INFO] [stdout] 377 |     fn calculateArea(&self) -> u32 {
[INFO] [stdout]     |        ^^^^^^^^^^^^^ help: convert the identifier to snake case: `calculate_area`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 38 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.78s
[INFO] running `Command { std: "docker" "inspect" "bd903221805cf1c7c2687fcf6088b3696d154c1e6c94ff1f668728770f87e5d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd903221805cf1c7c2687fcf6088b3696d154c1e6c94ff1f668728770f87e5d1", kill_on_drop: false }`
[INFO] [stdout] bd903221805cf1c7c2687fcf6088b3696d154c1e6c94ff1f668728770f87e5d1