Oct 21 18:56:14.268 INFO checking chrisp9/rust_exploration against master#155510e377ae2a8d8ee0dad1a5f809c9062a5526 for pr-55192
Oct 21 18:56:14.269 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-55192/worker-4/master#155510e377ae2a8d8ee0dad1a5f809c9062a5526:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-4/pr-55192/master#155510e377ae2a8d8ee0dad1a5f809c9062a5526:/source:ro,Z" "-v" "/mnt/big/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +155510e377ae2a8d8ee0dad1a5f809c9062a5526-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Oct 21 18:56:14.865 INFO blam! 36a03985a08800e8ca6c67128b692824d8de24c8602a00fece6065ff4bf963fe
Oct 21 18:56:14.873 INFO running `"docker" "start" "-a" "36a03985a08800e8ca6c67128b692824d8de24c8602a00fece6065ff4bf963fe"`
Oct 21 18:56:15.833 INFO kablam! usermod: no changes
Oct 21 18:56:15.918 INFO kablam!     Checking rust_exploration v0.1.0 (/source)
Oct 21 18:56:16.609 INFO kablam! warning: unused variable: `num`
Oct 21 18:56:16.610 INFO kablam!    --> src/main.rs:177:45
Oct 21 18:56:16.611 INFO kablam!     |
Oct 21 18:56:16.611 INFO kablam! 177 |     let mut expensive_result = Cacher::new(|num| {
Oct 21 18:56:16.611 INFO kablam!     |                                             ^^^ help: consider using `_num` instead
Oct 21 18:56:16.611 INFO kablam!     |
Oct 21 18:56:16.611 INFO kablam!     = note: #[warn(unused_variables)] on by default
Oct 21 18:56:16.611 INFO kablam! 
Oct 21 18:56:16.611 INFO kablam! warning: unused variable: `equal_to_x`
Oct 21 18:56:16.611 INFO kablam!    --> src/main.rs:212:9
Oct 21 18:56:16.611 INFO kablam!     |
Oct 21 18:56:16.611 INFO kablam! 212 |     let equal_to_x = |z : u32| z == x;
Oct 21 18:56:16.611 INFO kablam!     |         ^^^^^^^^^^ help: consider using `_equal_to_x` instead
Oct 21 18:56:16.611 INFO kablam! 
Oct 21 18:56:16.612 INFO kablam! warning: unused variable: `y`
Oct 21 18:56:16.612 INFO kablam!    --> src/main.rs:213:9
Oct 21 18:56:16.612 INFO kablam!     |
Oct 21 18:56:16.612 INFO kablam! 213 |     let y = 4;
Oct 21 18:56:16.612 INFO kablam!     |         ^ help: consider using `_y` instead
Oct 21 18:56:16.612 INFO kablam! 
Oct 21 18:56:16.612 INFO kablam! warning: unused variable: `res`
Oct 21 18:56:16.612 INFO kablam!    --> src/main.rs:229:9
Oct 21 18:56:16.612 INFO kablam!     |
Oct 21 18:56:16.612 INFO kablam! 229 |     let res: Vec<_> = v1.iter().map(|x| x + 1).collect();
Oct 21 18:56:16.612 INFO kablam!     |         ^^^ help: consider using `_res` instead
Oct 21 18:56:16.612 INFO kablam! 
Oct 21 18:56:16.612 INFO kablam! warning: unused variable: `total`
Oct 21 18:56:16.612 INFO kablam!    --> src/main.rs:236:9
Oct 21 18:56:16.612 INFO kablam!     |
Oct 21 18:56:16.612 INFO kablam! 236 |     let total: i32 = v1_iter.sum();
Oct 21 18:56:16.612 INFO kablam!     |         ^^^^^ help: consider using `_total` instead
Oct 21 18:56:16.612 INFO kablam! 
Oct 21 18:56:16.615 INFO kablam! warning: unused variable: `item`
Oct 21 18:56:16.615 INFO kablam!    --> src/main.rs:289:9
Oct 21 18:56:16.615 INFO kablam!     |
Oct 21 18:56:16.615 INFO kablam! 289 |     let item = map.get(&key).unwrap();
Oct 21 18:56:16.615 INFO kablam!     |         ^^^^ help: consider using `_item` instead
Oct 21 18:56:16.615 INFO kablam! 
Oct 21 18:56:16.615 INFO kablam! warning: unused variable: `s3`
Oct 21 18:56:16.615 INFO kablam!    --> src/main.rs:296:9
Oct 21 18:56:16.615 INFO kablam!     |
Oct 21 18:56:16.615 INFO kablam! 296 |     let s3 = s1 + &s2;
Oct 21 18:56:16.615 INFO kablam!     |         ^^ help: consider using `_s3` instead
Oct 21 18:56:16.615 INFO kablam! 
Oct 21 18:56:16.615 INFO kablam! warning: unused variable: `v`
Oct 21 18:56:16.615 INFO kablam!    --> src/main.rs:306:9
Oct 21 18:56:16.615 INFO kablam!     |
Oct 21 18:56:16.615 INFO kablam! 306 |     let v: Vec<i32> = Vec::new();
Oct 21 18:56:16.615 INFO kablam!     |         ^ help: consider using `_v` instead
Oct 21 18:56:16.615 INFO kablam! 
Oct 21 18:56:16.615 INFO kablam! warning: unused variable: `third`
Oct 21 18:56:16.615 INFO kablam!    --> src/main.rs:309:9
Oct 21 18:56:16.615 INFO kablam!     |
Oct 21 18:56:16.615 INFO kablam! 309 |     let third: &i32 = &v[2];
Oct 21 18:56:16.615 INFO kablam!     |         ^^^^^ help: consider using `_third` instead
Oct 21 18:56:16.615 INFO kablam! 
Oct 21 18:56:16.615 INFO kablam! warning: unused variable: `some_number`
Oct 21 18:56:16.615 INFO kablam!    --> src/main.rs:372:9
Oct 21 18:56:16.615 INFO kablam!     |
Oct 21 18:56:16.615 INFO kablam! 372 |     let some_number = Some(5);
Oct 21 18:56:16.615 INFO kablam!     |         ^^^^^^^^^^^ help: consider using `_some_number` instead
Oct 21 18:56:16.615 INFO kablam! 
Oct 21 18:56:16.615 INFO kablam! warning: unused variable: `some_string`
Oct 21 18:56:16.616 INFO kablam!    --> src/main.rs:373:9
Oct 21 18:56:16.616 INFO kablam!     |
Oct 21 18:56:16.616 INFO kablam! 373 |     let some_string = Some("A string");
Oct 21 18:56:16.616 INFO kablam!     |         ^^^^^^^^^^^ help: consider using `_some_string` instead
Oct 21 18:56:16.616 INFO kablam! 
Oct 21 18:56:16.616 INFO kablam! warning: unused variable: `absent_number`
Oct 21 18:56:16.616 INFO kablam!    --> src/main.rs:375:9
Oct 21 18:56:16.616 INFO kablam!     |
Oct 21 18:56:16.616 INFO kablam! 375 |     let absent_number : Option<i32> = None;
Oct 21 18:56:16.616 INFO kablam!     |         ^^^^^^^^^^^^^ help: consider using `_absent_number` instead
Oct 21 18:56:16.616 INFO kablam! 
Oct 21 18:56:16.616 INFO kablam! warning: unused variable: `rect3`
Oct 21 18:56:16.616 INFO kablam!    --> src/main.rs:387:9
Oct 21 18:56:16.616 INFO kablam!     |
Oct 21 18:56:16.616 INFO kablam! 387 |     let rect3 = Rectangle {width: 60, height: 45};
Oct 21 18:56:16.616 INFO kablam!     |         ^^^^^ help: consider using `_rect3` instead
Oct 21 18:56:16.616 INFO kablam! 
Oct 21 18:56:16.662 INFO kablam! warning: struct is never constructed: `NewsArticle`
Oct 21 18:56:16.662 INFO kablam!  --> src/news_aggregator/mod.rs:5:5
Oct 21 18:56:16.662 INFO kablam!   |
Oct 21 18:56:16.663 INFO kablam! 5 |     pub struct NewsArticle {
Oct 21 18:56:16.663 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^^^^^
Oct 21 18:56:16.663 INFO kablam!   |
Oct 21 18:56:16.663 INFO kablam!   = note: #[warn(dead_code)] on by default
Oct 21 18:56:16.663 INFO kablam! 
Oct 21 18:56:16.664 INFO kablam! warning: struct is never constructed: `Tweet`
Oct 21 18:56:16.664 INFO kablam!   --> src/news_aggregator/mod.rs:18:5
Oct 21 18:56:16.664 INFO kablam!    |
Oct 21 18:56:16.664 INFO kablam! 18 |     pub struct Tweet {
Oct 21 18:56:16.664 INFO kablam!    |     ^^^^^^^^^^^^^^^^
Oct 21 18:56:16.665 INFO kablam! 
Oct 21 18:56:16.665 INFO kablam! warning: struct is never constructed: `Pair`
Oct 21 18:56:16.665 INFO kablam!   --> src/main.rs:18:1
Oct 21 18:56:16.665 INFO kablam!    |
Oct 21 18:56:16.665 INFO kablam! 18 | struct Pair<T> {
Oct 21 18:56:16.665 INFO kablam!    | ^^^^^^^^^^^^^^
Oct 21 18:56:16.666 INFO kablam! 
Oct 21 18:56:16.666 INFO kablam! warning: method is never used: `new`
Oct 21 18:56:16.666 INFO kablam!   --> src/main.rs:24:5
Oct 21 18:56:16.666 INFO kablam!    |
Oct 21 18:56:16.666 INFO kablam! 24 |     fn new(x: T, y: T) -> Self {
Oct 21 18:56:16.667 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 21 18:56:16.667 INFO kablam! 
Oct 21 18:56:16.667 INFO kablam! warning: method is never used: `cmp_display`
Oct 21 18:56:16.667 INFO kablam!   --> src/main.rs:33:5
Oct 21 18:56:16.667 INFO kablam!    |
Oct 21 18:56:16.667 INFO kablam! 33 |     fn cmp_display(&self) {
Oct 21 18:56:16.668 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^
Oct 21 18:56:16.668 INFO kablam! 
Oct 21 18:56:16.668 INFO kablam! warning: struct is never constructed: `User`
Oct 21 18:56:16.668 INFO kablam!   --> src/main.rs:42:1
Oct 21 18:56:16.668 INFO kablam!    |
Oct 21 18:56:16.669 INFO kablam! 42 | struct User {
Oct 21 18:56:16.669 INFO kablam!    | ^^^^^^^^^^^
Oct 21 18:56:16.669 INFO kablam! 
Oct 21 18:56:16.669 INFO kablam! warning: struct is never constructed: `Rectangle`
Oct 21 18:56:16.669 INFO kablam!   --> src/main.rs:49:1
Oct 21 18:56:16.669 INFO kablam!    |
Oct 21 18:56:16.670 INFO kablam! 49 | struct Rectangle {
Oct 21 18:56:16.670 INFO kablam!    | ^^^^^^^^^^^^^^^^
Oct 21 18:56:16.670 INFO kablam! 
Oct 21 18:56:16.670 INFO kablam! warning: method is never used: `area`
Oct 21 18:56:16.670 INFO kablam!   --> src/main.rs:55:5
Oct 21 18:56:16.671 INFO kablam!    |
Oct 21 18:56:16.671 INFO kablam! 55 |     fn area(&self) -> u32 {
Oct 21 18:56:16.671 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^
Oct 21 18:56:16.671 INFO kablam! 
Oct 21 18:56:16.671 INFO kablam! warning: method is never used: `can_hold`
Oct 21 18:56:16.677 INFO kablam!   --> src/main.rs:59:5
Oct 21 18:56:16.678 INFO kablam!    |
Oct 21 18:56:16.678 INFO kablam! 59 |     fn can_hold(&self, other: &Rectangle) -> bool {
Oct 21 18:56:16.679 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 21 18:56:16.679 INFO kablam! 
Oct 21 18:56:16.679 INFO kablam! warning: method is never used: `square`
Oct 21 18:56:16.680 INFO kablam!   --> src/main.rs:63:5
Oct 21 18:56:16.680 INFO kablam!    |
Oct 21 18:56:16.680 INFO kablam! 63 |     fn square(size: u32) -> Rectangle {
Oct 21 18:56:16.681 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 21 18:56:16.681 INFO kablam! 
Oct 21 18:56:16.681 INFO kablam! warning: enum is never used: `IpAddrKind`
Oct 21 18:56:16.682 INFO kablam!   --> src/main.rs:68:1
Oct 21 18:56:16.682 INFO kablam!    |
Oct 21 18:56:16.682 INFO kablam! 68 | enum IpAddrKind {
Oct 21 18:56:16.682 INFO kablam!    | ^^^^^^^^^^^^^^^
Oct 21 18:56:16.683 INFO kablam! 
Oct 21 18:56:16.683 INFO kablam! warning: enum is never used: `UsState`
Oct 21 18:56:16.683 INFO kablam!   --> src/main.rs:74:1
Oct 21 18:56:16.684 INFO kablam!    |
Oct 21 18:56:16.691 INFO kablam! 74 | enum UsState {
Oct 21 18:56:16.691 INFO kablam!    | ^^^^^^^^^^^^
Oct 21 18:56:16.691 INFO kablam! 
Oct 21 18:56:16.692 INFO kablam! warning: enum is never used: `Coin`
Oct 21 18:56:16.692 INFO kablam!   --> src/main.rs:80:1
Oct 21 18:56:16.692 INFO kablam!    |
Oct 21 18:56:16.693 INFO kablam! 80 | enum Coin {
Oct 21 18:56:16.693 INFO kablam!    | ^^^^^^^^^
Oct 21 18:56:16.693 INFO kablam! 
Oct 21 18:56:16.693 INFO kablam! warning: enum is never used: `Message`
Oct 21 18:56:16.694 INFO kablam!   --> src/main.rs:87:1
Oct 21 18:56:16.694 INFO kablam!    |
Oct 21 18:56:16.694 INFO kablam! 87 | enum Message {
Oct 21 18:56:16.695 INFO kablam!    | ^^^^^^^^^^^^
Oct 21 18:56:16.695 INFO kablam! 
Oct 21 18:56:16.695 INFO kablam! warning: method is never used: `call`
Oct 21 18:56:16.696 INFO kablam!   --> src/main.rs:95:5
Oct 21 18:56:16.696 INFO kablam!    |
Oct 21 18:56:16.696 INFO kablam! 95 |     fn call(&self) {
Oct 21 18:56:16.697 INFO kablam!    |     ^^^^^^^^^^^^^^
Oct 21 18:56:16.697 INFO kablam! 
Oct 21 18:56:16.697 INFO kablam! warning: function is never used: `largest`
Oct 21 18:56:16.698 INFO kablam!    --> src/main.rs:100:2
Oct 21 18:56:16.698 INFO kablam!     |
Oct 21 18:56:16.698 INFO kablam! 100 |  fn largest<T : PartialOrd>(list: &[T]) -> &T {
Oct 21 18:56:16.699 INFO kablam!     |  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 21 18:56:16.699 INFO kablam! 
Oct 21 18:56:16.699 INFO kablam! warning: struct is never constructed: `Point`
Oct 21 18:56:16.700 INFO kablam!    --> src/main.rs:112:1
Oct 21 18:56:16.700 INFO kablam!     |
Oct 21 18:56:16.700 INFO kablam! 112 | struct Point<T> {
Oct 21 18:56:16.701 INFO kablam!     | ^^^^^^^^^^^^^^^
Oct 21 18:56:16.701 INFO kablam! 
Oct 21 18:56:16.702 INFO kablam! warning: function is never used: `simulated_expensive_calculation`
Oct 21 18:56:16.702 INFO kablam!    --> src/main.rs:204:1
Oct 21 18:56:16.702 INFO kablam!     |
Oct 21 18:56:16.702 INFO kablam! 204 | fn simulated_expensive_calculation(intensity: u32) -> u32 {
Oct 21 18:56:16.703 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 21 18:56:16.703 INFO kablam! 
Oct 21 18:56:16.703 INFO kablam! warning: function is never used: `closure_capturing_context`
Oct 21 18:56:16.704 INFO kablam!    --> src/main.rs:210:1
Oct 21 18:56:16.708 INFO kablam!     |
Oct 21 18:56:16.709 INFO kablam! 210 | fn closure_capturing_context() {
Oct 21 18:56:16.709 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 21 18:56:16.709 INFO kablam! 
Oct 21 18:56:16.709 INFO kablam! warning: function is never used: `iterators`
Oct 21 18:56:16.710 INFO kablam!    --> src/main.rs:217:1
Oct 21 18:56:16.710 INFO kablam!     |
Oct 21 18:56:16.710 INFO kablam! 217 | fn iterators() {
Oct 21 18:56:16.710 INFO kablam!     | ^^^^^^^^^^^^^^
Oct 21 18:56:16.711 INFO kablam! 
Oct 21 18:56:16.711 INFO kablam! warning: function is never used: `iterator_map`
Oct 21 18:56:16.711 INFO kablam!    --> src/main.rs:226:1
Oct 21 18:56:16.712 INFO kablam!     |
Oct 21 18:56:16.712 INFO kablam! 226 | fn iterator_map() {
Oct 21 18:56:16.712 INFO kablam!     | ^^^^^^^^^^^^^^^^^
Oct 21 18:56:16.713 INFO kablam! 
Oct 21 18:56:16.713 INFO kablam! warning: function is never used: `iterator_sum`
Oct 21 18:56:16.713 INFO kablam!    --> src/main.rs:232:1
Oct 21 18:56:16.714 INFO kablam!     |
Oct 21 18:56:16.714 INFO kablam! 232 | fn iterator_sum() {
Oct 21 18:56:16.714 INFO kablam!     | ^^^^^^^^^^^^^^^^^
Oct 21 18:56:16.715 INFO kablam! 
Oct 21 18:56:16.715 INFO kablam! warning: function is never used: `news_aggregate`
Oct 21 18:56:16.715 INFO kablam!    --> src/main.rs:269:1
Oct 21 18:56:16.715 INFO kablam!     |
Oct 21 18:56:16.716 INFO kablam! 269 | fn news_aggregate() {
Oct 21 18:56:16.716 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^
Oct 21 18:56:16.716 INFO kablam! 
Oct 21 18:56:16.717 INFO kablam! warning: function is never used: `vector`
Oct 21 18:56:16.717 INFO kablam!    --> src/main.rs:305:1
Oct 21 18:56:16.717 INFO kablam!     |
Oct 21 18:56:16.718 INFO kablam! 305 | fn vector() {
Oct 21 18:56:16.718 INFO kablam!     | ^^^^^^^^^^^
Oct 21 18:56:16.718 INFO kablam! 
Oct 21 18:56:16.719 INFO kablam! warning: struct is never constructed: `Counter`
Oct 21 18:56:16.719 INFO kablam!    --> src/main.rs:325:1
Oct 21 18:56:16.719 INFO kablam!     |
Oct 21 18:56:16.719 INFO kablam! 325 | struct Counter {
Oct 21 18:56:16.720 INFO kablam!     | ^^^^^^^^^^^^^^
Oct 21 18:56:16.724 INFO kablam! 
Oct 21 18:56:16.724 INFO kablam! warning: method is never used: `new`
Oct 21 18:56:16.725 INFO kablam!    --> src/main.rs:330:5
Oct 21 18:56:16.725 INFO kablam!     |
Oct 21 18:56:16.725 INFO kablam! 330 |     fn new() -> Counter {
Oct 21 18:56:16.726 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^
Oct 21 18:56:16.726 INFO kablam! 
Oct 21 18:56:16.726 INFO kablam! warning: function is never used: `if_let`
Oct 21 18:56:16.727 INFO kablam!    --> src/main.rs:351:1
Oct 21 18:56:16.727 INFO kablam!     |
Oct 21 18:56:16.727 INFO kablam! 351 | fn if_let() {
Oct 21 18:56:16.728 INFO kablam!     | ^^^^^^^^^^^
Oct 21 18:56:16.728 INFO kablam! 
Oct 21 18:56:16.728 INFO kablam! warning: function is never used: `value_in_cents`
Oct 21 18:56:16.729 INFO kablam!    --> src/main.rs:359:1
Oct 21 18:56:16.729 INFO kablam!     |
Oct 21 18:56:16.729 INFO kablam! 359 | fn value_in_cents(coin : Coin) -> u32 {
Oct 21 18:56:16.729 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 21 18:56:16.730 INFO kablam! 
Oct 21 18:56:16.730 INFO kablam! warning: function is never used: `option`
Oct 21 18:56:16.730 INFO kablam!    --> src/main.rs:371:1
Oct 21 18:56:16.731 INFO kablam!     |
Oct 21 18:56:16.731 INFO kablam! 371 | fn option() {
Oct 21 18:56:16.731 INFO kablam!     | ^^^^^^^^^^^
Oct 21 18:56:16.732 INFO kablam! 
Oct 21 18:56:16.733 INFO kablam! warning: function is never used: `messages`
Oct 21 18:56:16.733 INFO kablam!    --> src/main.rs:378:1
Oct 21 18:56:16.733 INFO kablam!     |
Oct 21 18:56:16.734 INFO kablam! 378 | fn messages() {
Oct 21 18:56:16.734 INFO kablam!     | ^^^^^^^^^^^^^
Oct 21 18:56:16.734 INFO kablam! 
Oct 21 18:56:16.735 INFO kablam! warning: function is never used: `rectangles`
Oct 21 18:56:16.735 INFO kablam!    --> src/main.rs:383:1
Oct 21 18:56:16.735 INFO kablam!     |
Oct 21 18:56:16.736 INFO kablam! 383 | fn rectangles() {
Oct 21 18:56:16.736 INFO kablam!     | ^^^^^^^^^^^^^^^
Oct 21 18:56:16.737 INFO kablam! 
Oct 21 18:56:16.737 INFO kablam! warning: function is never used: `build_user`
Oct 21 18:56:16.737 INFO kablam!    --> src/main.rs:395:1
Oct 21 18:56:16.737 INFO kablam!     |
Oct 21 18:56:16.738 INFO kablam! 395 | fn build_user(email: String, username: String) -> User {
Oct 21 18:56:16.738 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 21 18:56:16.738 INFO kablam! 
Oct 21 18:56:16.739 INFO kablam! warning: function is never used: `coins`
Oct 21 18:56:16.739 INFO kablam!    --> src/main.rs:404:1
Oct 21 18:56:16.739 INFO kablam!     |
Oct 21 18:56:16.739 INFO kablam! 404 | fn coins() {
Oct 21 18:56:16.740 INFO kablam!     | ^^^^^^^^^^
Oct 21 18:56:16.740 INFO kablam! 
Oct 21 18:56:16.741 INFO kablam! warning: function is never used: `slices`
Oct 21 18:56:16.741 INFO kablam!    --> src/main.rs:409:1
Oct 21 18:56:16.741 INFO kablam!     |
Oct 21 18:56:16.742 INFO kablam! 409 | fn slices() {
Oct 21 18:56:16.742 INFO kablam!     | ^^^^^^^^^^^
Oct 21 18:56:16.742 INFO kablam! 
Oct 21 18:56:16.742 INFO kablam! warning: function is never used: `takes_ownership`
Oct 21 18:56:16.743 INFO kablam!    --> src/main.rs:419:1
Oct 21 18:56:16.743 INFO kablam!     |
Oct 21 18:56:16.743 INFO kablam! 419 | fn takes_ownership(some_string: String) {
Oct 21 18:56:16.744 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 21 18:56:16.744 INFO kablam! 
Oct 21 18:56:16.744 INFO kablam! warning: function is never used: `makes_copy`
Oct 21 18:56:16.745 INFO kablam!    --> src/main.rs:423:1
Oct 21 18:56:16.745 INFO kablam!     |
Oct 21 18:56:16.745 INFO kablam! 423 | fn makes_copy(some_integer: i32) {
Oct 21 18:56:16.745 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 21 18:56:16.746 INFO kablam! 
Oct 21 18:56:16.746 INFO kablam! warning: function is never used: `first_word`
Oct 21 18:56:16.746 INFO kablam!    --> src/main.rs:427:1
Oct 21 18:56:16.746 INFO kablam!     |
Oct 21 18:56:16.747 INFO kablam! 427 | fn first_word(s: &String) -> usize {
Oct 21 18:56:16.747 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 21 18:56:16.747 INFO kablam! 
Oct 21 18:56:16.748 INFO kablam! warning: function is never used: `guess_number`
Oct 21 18:56:16.748 INFO kablam!    --> src/main.rs:440:1
Oct 21 18:56:16.748 INFO kablam!     |
Oct 21 18:56:16.748 INFO kablam! 440 | fn guess_number() {
Oct 21 18:56:16.749 INFO kablam!     | ^^^^^^^^^^^^^^^^^
Oct 21 18:56:16.749 INFO kablam! 
Oct 21 18:56:16.749 INFO kablam! warning: unused variable: `num`
Oct 21 18:56:16.749 INFO kablam!    --> src/main.rs:177:45
Oct 21 18:56:16.750 INFO kablam!     |
Oct 21 18:56:16.750 INFO kablam! 177 |     let mut expensive_result = Cacher::new(|num| {
Oct 21 18:56:16.750 INFO kablam!     |                                             ^^^ help: consider using `_num` instead
Oct 21 18:56:16.751 INFO kablam!     |
Oct 21 18:56:16.751 INFO kablam!     = note: #[warn(unused_variables)] on by default
Oct 21 18:56:16.751 INFO kablam! 
Oct 21 18:56:16.751 INFO kablam! warning: unused variable: `equal_to_x`
Oct 21 18:56:16.752 INFO kablam!    --> src/main.rs:212:9
Oct 21 18:56:16.752 INFO kablam!     |
Oct 21 18:56:16.752 INFO kablam! 212 |     let equal_to_x = |z : u32| z == x;
Oct 21 18:56:16.753 INFO kablam!     |         ^^^^^^^^^^ help: consider using `_equal_to_x` instead
Oct 21 18:56:16.753 INFO kablam! 
Oct 21 18:56:16.753 INFO kablam! warning: unused variable: `y`
Oct 21 18:56:16.754 INFO kablam!    --> src/main.rs:213:9
Oct 21 18:56:16.754 INFO kablam!     |
Oct 21 18:56:16.754 INFO kablam! 213 |     let y = 4;
Oct 21 18:56:16.754 INFO kablam!     |         ^ help: consider using `_y` instead
Oct 21 18:56:16.755 INFO kablam! 
Oct 21 18:56:16.755 INFO kablam! warning: unused variable: `res`
Oct 21 18:56:16.755 INFO kablam!    --> src/main.rs:229:9
Oct 21 18:56:16.755 INFO kablam!     |
Oct 21 18:56:16.756 INFO kablam! 229 |     let res: Vec<_> = v1.iter().map(|x| x + 1).collect();
Oct 21 18:56:16.756 INFO kablam!     |         ^^^ help: consider using `_res` instead
Oct 21 18:56:16.756 INFO kablam! 
Oct 21 18:56:16.757 INFO kablam! warning: unused variable: `total`
Oct 21 18:56:16.757 INFO kablam!    --> src/main.rs:236:9
Oct 21 18:56:16.757 INFO kablam!     |
Oct 21 18:56:16.757 INFO kablam! 236 |     let total: i32 = v1_iter.sum();
Oct 21 18:56:16.758 INFO kablam!     |         ^^^^^ help: consider using `_total` instead
Oct 21 18:56:16.758 INFO kablam! 
Oct 21 18:56:16.758 INFO kablam! warning: unused variable: `item`
Oct 21 18:56:16.759 INFO kablam!    --> src/main.rs:289:9
Oct 21 18:56:16.759 INFO kablam!     |
Oct 21 18:56:16.759 INFO kablam! 289 |     let item = map.get(&key).unwrap();
Oct 21 18:56:16.759 INFO kablam!     |         ^^^^ help: consider using `_item` instead
Oct 21 18:56:16.760 INFO kablam! 
Oct 21 18:56:16.760 INFO kablam! warning: unused variable: `s3`
Oct 21 18:56:16.760 INFO kablam!    --> src/main.rs:296:9
Oct 21 18:56:16.761 INFO kablam!     |
Oct 21 18:56:16.761 INFO kablam! 296 |     let s3 = s1 + &s2;
Oct 21 18:56:16.761 INFO kablam!     |         ^^ help: consider using `_s3` instead
Oct 21 18:56:16.762 INFO kablam! 
Oct 21 18:56:16.762 INFO kablam! warning: unused variable: `v`
Oct 21 18:56:16.762 INFO kablam!    --> src/main.rs:306:9
Oct 21 18:56:16.762 INFO kablam!     |
Oct 21 18:56:16.763 INFO kablam! 306 |     let v: Vec<i32> = Vec::new();
Oct 21 18:56:16.763 INFO kablam!     |         ^ help: consider using `_v` instead
Oct 21 18:56:16.763 INFO kablam! 
Oct 21 18:56:16.764 INFO kablam! warning: unused variable: `third`
Oct 21 18:56:16.764 INFO kablam!    --> src/main.rs:309:9
Oct 21 18:56:16.764 INFO kablam!     |
Oct 21 18:56:16.765 INFO kablam! 309 |     let third: &i32 = &v[2];
Oct 21 18:56:16.765 INFO kablam!     |         ^^^^^ help: consider using `_third` instead
Oct 21 18:56:16.765 INFO kablam! 
Oct 21 18:56:16.766 INFO kablam! warning: unused variable: `some_number`
Oct 21 18:56:16.766 INFO kablam!    --> src/main.rs:372:9
Oct 21 18:56:16.766 INFO kablam!     |
Oct 21 18:56:16.766 INFO kablam! 372 |     let some_number = Some(5);
Oct 21 18:56:16.767 INFO kablam!     |         ^^^^^^^^^^^ help: consider using `_some_number` instead
Oct 21 18:56:16.767 INFO kablam! 
Oct 21 18:56:16.767 INFO kablam! warning: unused variable: `some_string`
Oct 21 18:56:16.768 INFO kablam!    --> src/main.rs:373:9
Oct 21 18:56:16.768 INFO kablam!     |
Oct 21 18:56:16.768 INFO kablam! 373 |     let some_string = Some("A string");
Oct 21 18:56:16.769 INFO kablam!     |         ^^^^^^^^^^^ help: consider using `_some_string` instead
Oct 21 18:56:16.769 INFO kablam! 
Oct 21 18:56:16.769 INFO kablam! warning: unused variable: `absent_number`
Oct 21 18:56:16.769 INFO kablam!    --> src/main.rs:375:9
Oct 21 18:56:16.770 INFO kablam!     |
Oct 21 18:56:16.770 INFO kablam! 375 |     let absent_number : Option<i32> = None;
Oct 21 18:56:16.770 INFO kablam!     |         ^^^^^^^^^^^^^ help: consider using `_absent_number` instead
Oct 21 18:56:16.771 INFO kablam! 
Oct 21 18:56:16.771 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 21 18:56:16.771 INFO kablam!    --> src/main.rs:245:5
Oct 21 18:56:16.771 INFO kablam!     |
Oct 21 18:56:16.772 INFO kablam! 245 |     read_username_from_file();
Oct 21 18:56:16.772 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 21 18:56:16.772 INFO kablam!     |
Oct 21 18:56:16.773 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Oct 21 18:56:16.773 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Oct 21 18:56:16.773 INFO kablam! 
Oct 21 18:56:16.773 INFO kablam! warning: unused variable: `rect3`
Oct 21 18:56:16.774 INFO kablam!    --> src/main.rs:387:9
Oct 21 18:56:16.774 INFO kablam!     |
Oct 21 18:56:16.774 INFO kablam! 387 |     let rect3 = Rectangle {width: 60, height: 45};
Oct 21 18:56:16.775 INFO kablam!     |         ^^^^^ help: consider using `_rect3` instead
Oct 21 18:56:16.775 INFO kablam! 
Oct 21 18:56:16.775 INFO kablam! warning: struct is never constructed: `NewsArticle`
Oct 21 18:56:16.775 INFO kablam!  --> src/news_aggregator/mod.rs:5:5
Oct 21 18:56:16.776 INFO kablam!   |
Oct 21 18:56:16.776 INFO kablam! 5 |     pub struct NewsArticle {
Oct 21 18:56:16.776 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^^^^^
Oct 21 18:56:16.777 INFO kablam!   |
Oct 21 18:56:16.777 INFO kablam!   = note: #[warn(dead_code)] on by default
Oct 21 18:56:16.777 INFO kablam! 
Oct 21 18:56:16.778 INFO kablam! warning: struct is never constructed: `Tweet`
Oct 21 18:56:16.778 INFO kablam!   --> src/news_aggregator/mod.rs:18:5
Oct 21 18:56:16.778 INFO kablam!    |
Oct 21 18:56:16.778 INFO kablam! 18 |     pub struct Tweet {
Oct 21 18:56:16.779 INFO kablam!    |     ^^^^^^^^^^^^^^^^
Oct 21 18:56:16.779 INFO kablam! 
Oct 21 18:56:16.779 INFO kablam! warning: struct is never constructed: `Pair`
Oct 21 18:56:16.780 INFO kablam!   --> src/main.rs:18:1
Oct 21 18:56:16.780 INFO kablam!    |
Oct 21 18:56:16.781 INFO kablam! 18 | struct Pair<T> {
Oct 21 18:56:16.781 INFO kablam!    | ^^^^^^^^^^^^^^
Oct 21 18:56:16.781 INFO kablam! 
Oct 21 18:56:16.782 INFO kablam! warning: method is never used: `new`
Oct 21 18:56:16.782 INFO kablam!   --> src/main.rs:24:5
Oct 21 18:56:16.782 INFO kablam!    |
Oct 21 18:56:16.783 INFO kablam! 24 |     fn new(x: T, y: T) -> Self {
Oct 21 18:56:16.783 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 21 18:56:16.783 INFO kablam! 
Oct 21 18:56:16.783 INFO kablam! warning: method is never used: `cmp_display`
Oct 21 18:56:16.784 INFO kablam!   --> src/main.rs:33:5
Oct 21 18:56:16.784 INFO kablam!    |
Oct 21 18:56:16.784 INFO kablam! 33 |     fn cmp_display(&self) {
Oct 21 18:56:16.785 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^
Oct 21 18:56:16.785 INFO kablam! 
Oct 21 18:56:16.785 INFO kablam! warning: struct is never constructed: `User`
Oct 21 18:56:16.786 INFO kablam!   --> src/main.rs:42:1
Oct 21 18:56:16.786 INFO kablam!    |
Oct 21 18:56:16.786 INFO kablam! 42 | struct User {
Oct 21 18:56:16.786 INFO kablam!    | ^^^^^^^^^^^
Oct 21 18:56:16.787 INFO kablam! 
Oct 21 18:56:16.787 INFO kablam! warning: struct is never constructed: `Rectangle`
Oct 21 18:56:16.787 INFO kablam!   --> src/main.rs:49:1
Oct 21 18:56:16.788 INFO kablam!    |
Oct 21 18:56:16.788 INFO kablam! 49 | struct Rectangle {
Oct 21 18:56:16.791 INFO kablam!    | ^^^^^^^^^^^^^^^^
Oct 21 18:56:16.791 INFO kablam! 
Oct 21 18:56:16.792 INFO kablam! warning: method is never used: `area`
Oct 21 18:56:16.792 INFO kablam!   --> src/main.rs:55:5
Oct 21 18:56:16.792 INFO kablam!    |
Oct 21 18:56:16.793 INFO kablam! 55 |     fn area(&self) -> u32 {
Oct 21 18:56:16.793 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^
Oct 21 18:56:16.793 INFO kablam! 
Oct 21 18:56:16.794 INFO kablam! warning: method is never used: `can_hold`
Oct 21 18:56:16.794 INFO kablam!   --> src/main.rs:59:5
Oct 21 18:56:16.794 INFO kablam!    |
Oct 21 18:56:16.795 INFO kablam! 59 |     fn can_hold(&self, other: &Rectangle) -> bool {
Oct 21 18:56:16.795 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 21 18:56:16.795 INFO kablam! 
Oct 21 18:56:16.796 INFO kablam! warning: method is never used: `square`
Oct 21 18:56:16.796 INFO kablam!   --> src/main.rs:63:5
Oct 21 18:56:16.796 INFO kablam!    |
Oct 21 18:56:16.797 INFO kablam! 63 |     fn square(size: u32) -> Rectangle {
Oct 21 18:56:16.797 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 21 18:56:16.797 INFO kablam! 
Oct 21 18:56:16.798 INFO kablam! warning: enum is never used: `IpAddrKind`
Oct 21 18:56:16.798 INFO kablam!   --> src/main.rs:68:1
Oct 21 18:56:16.798 INFO kablam!    |
Oct 21 18:56:16.799 INFO kablam! 68 | enum IpAddrKind {
Oct 21 18:56:16.799 INFO kablam!    | ^^^^^^^^^^^^^^^
Oct 21 18:56:16.799 INFO kablam! 
Oct 21 18:56:16.800 INFO kablam! warning: enum is never used: `UsState`
Oct 21 18:56:16.800 INFO kablam!   --> src/main.rs:74:1
Oct 21 18:56:16.800 INFO kablam!    |
Oct 21 18:56:16.801 INFO kablam! 74 | enum UsState {
Oct 21 18:56:16.801 INFO kablam!    | ^^^^^^^^^^^^
Oct 21 18:56:16.801 INFO kablam! 
Oct 21 18:56:16.802 INFO kablam! warning: enum is never used: `Coin`
Oct 21 18:56:16.802 INFO kablam!   --> src/main.rs:80:1
Oct 21 18:56:16.802 INFO kablam!    |
Oct 21 18:56:16.803 INFO kablam! 80 | enum Coin {
Oct 21 18:56:16.803 INFO kablam!    | ^^^^^^^^^
Oct 21 18:56:16.803 INFO kablam! 
Oct 21 18:56:16.804 INFO kablam! warning: enum is never used: `Message`
Oct 21 18:56:16.804 INFO kablam!   --> src/main.rs:87:1
Oct 21 18:56:16.804 INFO kablam!    |
Oct 21 18:56:16.805 INFO kablam! 87 | enum Message {
Oct 21 18:56:16.805 INFO kablam!    | ^^^^^^^^^^^^
Oct 21 18:56:16.805 INFO kablam! 
Oct 21 18:56:16.805 INFO kablam! warning: method is never used: `call`
Oct 21 18:56:16.806 INFO kablam!   --> src/main.rs:95:5
Oct 21 18:56:16.806 INFO kablam!    |
Oct 21 18:56:16.806 INFO kablam! 95 |     fn call(&self) {
Oct 21 18:56:16.807 INFO kablam!    |     ^^^^^^^^^^^^^^
Oct 21 18:56:16.807 INFO kablam! 
Oct 21 18:56:16.807 INFO kablam! warning: function is never used: `largest`
Oct 21 18:56:16.807 INFO kablam!    --> src/main.rs:100:2
Oct 21 18:56:16.808 INFO kablam!     |
Oct 21 18:56:16.808 INFO kablam! 100 |  fn largest<T : PartialOrd>(list: &[T]) -> &T {
Oct 21 18:56:16.808 INFO kablam!     |  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 21 18:56:16.808 INFO kablam! 
Oct 21 18:56:16.808 INFO kablam! warning: struct is never constructed: `Point`
Oct 21 18:56:16.808 INFO kablam!    --> src/main.rs:112:1
Oct 21 18:56:16.808 INFO kablam!     |
Oct 21 18:56:16.808 INFO kablam! 112 | struct Point<T> {
Oct 21 18:56:16.808 INFO kablam!     | ^^^^^^^^^^^^^^^
Oct 21 18:56:16.809 INFO kablam! 
Oct 21 18:56:16.809 INFO kablam! warning: function is never used: `shoes_in_my_size`
Oct 21 18:56:16.809 INFO kablam!    --> src/main.rs:123:1
Oct 21 18:56:16.809 INFO kablam!     |
Oct 21 18:56:16.809 INFO kablam! 123 | fn shoes_in_my_size(shoes: Vec<Shoe>, shoe_size: u32) -> Vec<Shoe> {
Oct 21 18:56:16.809 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 21 18:56:16.809 INFO kablam! 
Oct 21 18:56:16.809 INFO kablam! warning: function is never used: `simulated_expensive_calculation`
Oct 21 18:56:16.809 INFO kablam!    --> src/main.rs:204:1
Oct 21 18:56:16.809 INFO kablam!     |
Oct 21 18:56:16.809 INFO kablam! 204 | fn simulated_expensive_calculation(intensity: u32) -> u32 {
Oct 21 18:56:16.809 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 21 18:56:16.809 INFO kablam! 
Oct 21 18:56:16.809 INFO kablam! warning: function is never used: `closure_capturing_context`
Oct 21 18:56:16.809 INFO kablam!    --> src/main.rs:210:1
Oct 21 18:56:16.809 INFO kablam!     |
Oct 21 18:56:16.809 INFO kablam! 210 | fn closure_capturing_context() {
Oct 21 18:56:16.809 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 21 18:56:16.809 INFO kablam! 
Oct 21 18:56:16.809 INFO kablam! warning: function is never used: `iterators`
Oct 21 18:56:16.809 INFO kablam!    --> src/main.rs:217:1
Oct 21 18:56:16.809 INFO kablam!     |
Oct 21 18:56:16.809 INFO kablam! 217 | fn iterators() {
Oct 21 18:56:16.809 INFO kablam!     | ^^^^^^^^^^^^^^
Oct 21 18:56:16.809 INFO kablam! 
Oct 21 18:56:16.809 INFO kablam! warning: function is never used: `iterator_map`
Oct 21 18:56:16.809 INFO kablam!    --> src/main.rs:226:1
Oct 21 18:56:16.809 INFO kablam!     |
Oct 21 18:56:16.809 INFO kablam! 226 | fn iterator_map() {
Oct 21 18:56:16.809 INFO kablam!     | ^^^^^^^^^^^^^^^^^
Oct 21 18:56:16.809 INFO kablam! 
Oct 21 18:56:16.809 INFO kablam! warning: function is never used: `iterator_sum`
Oct 21 18:56:16.809 INFO kablam!    --> src/main.rs:232:1
Oct 21 18:56:16.809 INFO kablam!     |
Oct 21 18:56:16.809 INFO kablam! 232 | fn iterator_sum() {
Oct 21 18:56:16.809 INFO kablam!     | ^^^^^^^^^^^^^^^^^
Oct 21 18:56:16.809 INFO kablam! 
Oct 21 18:56:16.809 INFO kablam! warning: function is never used: `news_aggregate`
Oct 21 18:56:16.809 INFO kablam!    --> src/main.rs:269:1
Oct 21 18:56:16.810 INFO kablam!     |
Oct 21 18:56:16.810 INFO kablam! 269 | fn news_aggregate() {
Oct 21 18:56:16.810 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^
Oct 21 18:56:16.810 INFO kablam! 
Oct 21 18:56:16.810 INFO kablam! warning: function is never used: `vector`
Oct 21 18:56:16.810 INFO kablam!    --> src/main.rs:305:1
Oct 21 18:56:16.810 INFO kablam!     |
Oct 21 18:56:16.810 INFO kablam! 305 | fn vector() {
Oct 21 18:56:16.810 INFO kablam!     | ^^^^^^^^^^^
Oct 21 18:56:16.810 INFO kablam! 
Oct 21 18:56:16.810 INFO kablam! warning: struct is never constructed: `Counter`
Oct 21 18:56:16.810 INFO kablam!    --> src/main.rs:325:1
Oct 21 18:56:16.810 INFO kablam!     |
Oct 21 18:56:16.810 INFO kablam! 325 | struct Counter {
Oct 21 18:56:16.810 INFO kablam!     | ^^^^^^^^^^^^^^
Oct 21 18:56:16.810 INFO kablam! 
Oct 21 18:56:16.810 INFO kablam! warning: method is never used: `new`
Oct 21 18:56:16.810 INFO kablam!    --> src/main.rs:330:5
Oct 21 18:56:16.810 INFO kablam!     |
Oct 21 18:56:16.810 INFO kablam! 330 |     fn new() -> Counter {
Oct 21 18:56:16.810 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^
Oct 21 18:56:16.810 INFO kablam! 
Oct 21 18:56:16.810 INFO kablam! warning: function is never used: `if_let`
Oct 21 18:56:16.810 INFO kablam!    --> src/main.rs:351:1
Oct 21 18:56:16.810 INFO kablam!     |
Oct 21 18:56:16.810 INFO kablam! 351 | fn if_let() {
Oct 21 18:56:16.810 INFO kablam!     | ^^^^^^^^^^^
Oct 21 18:56:16.810 INFO kablam! 
Oct 21 18:56:16.810 INFO kablam! warning: function is never used: `value_in_cents`
Oct 21 18:56:16.810 INFO kablam!    --> src/main.rs:359:1
Oct 21 18:56:16.810 INFO kablam!     |
Oct 21 18:56:16.810 INFO kablam! 359 | fn value_in_cents(coin : Coin) -> u32 {
Oct 21 18:56:16.811 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 21 18:56:16.811 INFO kablam! 
Oct 21 18:56:16.811 INFO kablam! warning: function is never used: `option`
Oct 21 18:56:16.811 INFO kablam!    --> src/main.rs:371:1
Oct 21 18:56:16.811 INFO kablam!     |
Oct 21 18:56:16.811 INFO kablam! 371 | fn option() {
Oct 21 18:56:16.811 INFO kablam!     | ^^^^^^^^^^^
Oct 21 18:56:16.811 INFO kablam! 
Oct 21 18:56:16.811 INFO kablam! warning: function is never used: `messages`
Oct 21 18:56:16.811 INFO kablam!    --> src/main.rs:378:1
Oct 21 18:56:16.811 INFO kablam!     |
Oct 21 18:56:16.811 INFO kablam! 378 | fn messages() {
Oct 21 18:56:16.811 INFO kablam!     | ^^^^^^^^^^^^^
Oct 21 18:56:16.811 INFO kablam! 
Oct 21 18:56:16.811 INFO kablam! warning: function is never used: `rectangles`
Oct 21 18:56:16.811 INFO kablam!    --> src/main.rs:383:1
Oct 21 18:56:16.811 INFO kablam!     |
Oct 21 18:56:16.811 INFO kablam! 383 | fn rectangles() {
Oct 21 18:56:16.811 INFO kablam!     | ^^^^^^^^^^^^^^^
Oct 21 18:56:16.811 INFO kablam! 
Oct 21 18:56:16.811 INFO kablam! warning: function is never used: `build_user`
Oct 21 18:56:16.811 INFO kablam!    --> src/main.rs:395:1
Oct 21 18:56:16.811 INFO kablam!     |
Oct 21 18:56:16.811 INFO kablam! 395 | fn build_user(email: String, username: String) -> User {
Oct 21 18:56:16.811 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 21 18:56:16.811 INFO kablam! 
Oct 21 18:56:16.811 INFO kablam! warning: function is never used: `coins`
Oct 21 18:56:16.811 INFO kablam!    --> src/main.rs:404:1
Oct 21 18:56:16.811 INFO kablam!     |
Oct 21 18:56:16.811 INFO kablam! 404 | fn coins() {
Oct 21 18:56:16.811 INFO kablam!     | ^^^^^^^^^^
Oct 21 18:56:16.811 INFO kablam! 
Oct 21 18:56:16.812 INFO kablam! warning: function is never used: `slices`
Oct 21 18:56:16.812 INFO kablam!    --> src/main.rs:409:1
Oct 21 18:56:16.812 INFO kablam!     |
Oct 21 18:56:16.812 INFO kablam! 409 | fn slices() {
Oct 21 18:56:16.812 INFO kablam!     | ^^^^^^^^^^^
Oct 21 18:56:16.812 INFO kablam! 
Oct 21 18:56:16.812 INFO kablam! warning: function is never used: `takes_ownership`
Oct 21 18:56:16.812 INFO kablam!    --> src/main.rs:419:1
Oct 21 18:56:16.812 INFO kablam!     |
Oct 21 18:56:16.812 INFO kablam! 419 | fn takes_ownership(some_string: String) {
Oct 21 18:56:16.812 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 21 18:56:16.812 INFO kablam! 
Oct 21 18:56:16.812 INFO kablam! warning: function is never used: `makes_copy`
Oct 21 18:56:16.812 INFO kablam!    --> src/main.rs:423:1
Oct 21 18:56:16.812 INFO kablam!     |
Oct 21 18:56:16.812 INFO kablam! 423 | fn makes_copy(some_integer: i32) {
Oct 21 18:56:16.812 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 21 18:56:16.812 INFO kablam! 
Oct 21 18:56:16.812 INFO kablam! warning: function is never used: `first_word`
Oct 21 18:56:16.812 INFO kablam!    --> src/main.rs:427:1
Oct 21 18:56:16.812 INFO kablam!     |
Oct 21 18:56:16.812 INFO kablam! 427 | fn first_word(s: &String) -> usize {
Oct 21 18:56:16.812 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 21 18:56:16.812 INFO kablam! 
Oct 21 18:56:16.812 INFO kablam! warning: function is never used: `guess_number`
Oct 21 18:56:16.812 INFO kablam!    --> src/main.rs:440:1
Oct 21 18:56:16.812 INFO kablam!     |
Oct 21 18:56:16.812 INFO kablam! 440 | fn guess_number() {
Oct 21 18:56:16.812 INFO kablam!     | ^^^^^^^^^^^^^^^^^
Oct 21 18:56:16.812 INFO kablam! 
Oct 21 18:56:16.812 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 21 18:56:16.812 INFO kablam!    --> src/main.rs:245:5
Oct 21 18:56:16.812 INFO kablam!     |
Oct 21 18:56:16.812 INFO kablam! 245 |     read_username_from_file();
Oct 21 18:56:16.812 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 21 18:56:16.812 INFO kablam!     |
Oct 21 18:56:16.812 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Oct 21 18:56:16.812 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Oct 21 18:56:16.812 INFO kablam! 
Oct 21 18:56:16.812 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.91s
Oct 21 18:56:16.812 INFO kablam! su: No module specific data is present
Oct 21 18:56:17.328 INFO running `"docker" "rm" "-f" "36a03985a08800e8ca6c67128b692824d8de24c8602a00fece6065ff4bf963fe"`
Oct 21 18:56:17.501 INFO blam! 36a03985a08800e8ca6c67128b692824d8de24c8602a00fece6065ff4bf963fe