Nov 28 12:38:29.852 INFO checking Kyledmw/rust-web-thing against try#db42d4dad33013eba11ef37342ad9f614e5652b8 for pr-56074
Nov 28 12:38:29.852 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-4/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56074/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/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 +db42d4dad33013eba11ef37342ad9f614e5652b8-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"`
Nov 28 12:38:30.340 INFO [stdout] 21b5bd1d8bdbe464ac8d37cb231c4f23844b185c8be53cf9fdf9b3051365a31a
Nov 28 12:38:30.346 INFO running `"docker" "start" "-a" "21b5bd1d8bdbe464ac8d37cb231c4f23844b185c8be53cf9fdf9b3051365a31a"`
Nov 28 12:38:31.692 INFO [stderr] usermod: no changes
Nov 28 12:38:31.756 INFO [stderr]     Checking rust-web-thing v0.1.0 (/source)
Nov 28 12:38:32.841 INFO [stderr] warning: unused variable: `word`
Nov 28 12:38:32.841 INFO [stderr]    --> src/main.rs:241:9
Nov 28 12:38:32.841 INFO [stderr]     |
Nov 28 12:38:32.841 INFO [stderr] 241 |     let word = first_word(&s);
Nov 28 12:38:32.841 INFO [stderr]     |         ^^^^ help: consider using `_word` instead
Nov 28 12:38:32.841 INFO [stderr]     |
Nov 28 12:38:32.841 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Nov 28 12:38:32.841 INFO [stderr] 
Nov 28 12:38:32.841 INFO [stderr] warning: unused variable: `user3`
Nov 28 12:38:32.841 INFO [stderr]    --> src/main.rs:325:9
Nov 28 12:38:32.841 INFO [stderr]     |
Nov 28 12:38:32.841 INFO [stderr] 325 |     let user3 = User {
Nov 28 12:38:32.841 INFO [stderr]     |         ^^^^^ help: consider using `_user3` instead
Nov 28 12:38:32.841 INFO [stderr] 
Nov 28 12:38:32.841 INFO [stderr] warning: unused variable: `user4`
Nov 28 12:38:32.841 INFO [stderr]    --> src/main.rs:334:9
Nov 28 12:38:32.841 INFO [stderr]     |
Nov 28 12:38:32.841 INFO [stderr] 334 |     let user4 = User {
Nov 28 12:38:32.841 INFO [stderr]     |         ^^^^^ help: consider using `_user4` instead
Nov 28 12:38:32.841 INFO [stderr] 
Nov 28 12:38:32.841 INFO [stderr] warning: unused variable: `black`
Nov 28 12:38:32.841 INFO [stderr]    --> src/main.rs:365:9
Nov 28 12:38:32.841 INFO [stderr]     |
Nov 28 12:38:32.841 INFO [stderr] 365 |     let black = Color(0, 0, 0);
Nov 28 12:38:32.841 INFO [stderr]     |         ^^^^^ help: consider using `_black` instead
Nov 28 12:38:32.841 INFO [stderr] 
Nov 28 12:38:32.841 INFO [stderr] warning: unused variable: `home`
Nov 28 12:38:32.841 INFO [stderr]    --> src/main.rs:435:9
Nov 28 12:38:32.841 INFO [stderr]     |
Nov 28 12:38:32.841 INFO [stderr] 435 |     let home = IpAddrStruct {
Nov 28 12:38:32.841 INFO [stderr]     |         ^^^^ help: consider using `_home` instead
Nov 28 12:38:32.841 INFO [stderr] 
Nov 28 12:38:32.841 INFO [stderr] warning: unused variable: `loopback`
Nov 28 12:38:32.841 INFO [stderr]    --> src/main.rs:440:9
Nov 28 12:38:32.841 INFO [stderr]     |
Nov 28 12:38:32.841 INFO [stderr] 440 |     let loopback = IpAddrStruct {
Nov 28 12:38:32.841 INFO [stderr]     |         ^^^^^^^^ help: consider using `_loopback` instead
Nov 28 12:38:32.841 INFO [stderr] 
Nov 28 12:38:32.841 INFO [stderr] warning: unused variable: `h`
Nov 28 12:38:32.841 INFO [stderr]    --> src/main.rs:445:9
Nov 28 12:38:32.841 INFO [stderr]     |
Nov 28 12:38:32.841 INFO [stderr] 445 |     let h = IpAddrS::V4(String::from("127.0.0.1"));
Nov 28 12:38:32.841 INFO [stderr]     |         ^ help: consider using `_h` instead
Nov 28 12:38:32.841 INFO [stderr] 
Nov 28 12:38:32.841 INFO [stderr] warning: unused variable: `lb`
Nov 28 12:38:32.841 INFO [stderr]    --> src/main.rs:446:9
Nov 28 12:38:32.841 INFO [stderr]     |
Nov 28 12:38:32.841 INFO [stderr] 446 |     let lb = IpAddrS::V6(String::from("::1"));
Nov 28 12:38:32.841 INFO [stderr]     |         ^^ help: consider using `_lb` instead
Nov 28 12:38:32.841 INFO [stderr] 
Nov 28 12:38:32.841 INFO [stderr] warning: unused variable: `h2`
Nov 28 12:38:32.841 INFO [stderr]    --> src/main.rs:448:9
Nov 28 12:38:32.841 INFO [stderr]     |
Nov 28 12:38:32.841 INFO [stderr] 448 |     let h2  = IpAddr::V4(127, 0, 0, 1);
Nov 28 12:38:32.841 INFO [stderr]     |         ^^ help: consider using `_h2` instead
Nov 28 12:38:32.841 INFO [stderr] 
Nov 28 12:38:32.841 INFO [stderr] warning: unused variable: `ip_type`
Nov 28 12:38:32.841 INFO [stderr]    --> src/main.rs:458:10
Nov 28 12:38:32.841 INFO [stderr]     |
Nov 28 12:38:32.841 INFO [stderr] 458 | fn route(ip_type: IpAddrKind) {}
Nov 28 12:38:32.841 INFO [stderr]     |          ^^^^^^^ help: consider using `_ip_type` instead
Nov 28 12:38:32.841 INFO [stderr] 
Nov 28 12:38:32.841 INFO [stderr] warning: unused variable: `some_number`
Nov 28 12:38:32.841 INFO [stderr]    --> src/main.rs:489:9
Nov 28 12:38:32.841 INFO [stderr]     |
Nov 28 12:38:32.841 INFO [stderr] 489 |     let some_number = Some(5);
Nov 28 12:38:32.841 INFO [stderr]     |         ^^^^^^^^^^^ help: consider using `_some_number` instead
Nov 28 12:38:32.841 INFO [stderr] 
Nov 28 12:38:32.841 INFO [stderr] warning: unused variable: `some_string`
Nov 28 12:38:32.841 INFO [stderr]    --> src/main.rs:490:9
Nov 28 12:38:32.841 INFO [stderr]     |
Nov 28 12:38:32.841 INFO [stderr] 490 |     let some_string = Some("a string");
Nov 28 12:38:32.841 INFO [stderr]     |         ^^^^^^^^^^^ help: consider using `_some_string` instead
Nov 28 12:38:32.841 INFO [stderr] 
Nov 28 12:38:32.841 INFO [stderr] warning: unused variable: `absent_number`
Nov 28 12:38:32.841 INFO [stderr]    --> src/main.rs:492:9
Nov 28 12:38:32.841 INFO [stderr]     |
Nov 28 12:38:32.841 INFO [stderr] 492 |     let absent_number: Option<i32> = None;
Nov 28 12:38:32.841 INFO [stderr]     |         ^^^^^^^^^^^^^ help: consider using `_absent_number` instead
Nov 28 12:38:32.841 INFO [stderr] 
Nov 28 12:38:32.841 INFO [stderr] warning: unused variable: `sum`
Nov 28 12:38:32.841 INFO [stderr]    --> src/main.rs:499:9
Nov 28 12:38:32.842 INFO [stderr]     |
Nov 28 12:38:32.842 INFO [stderr] 499 |     let sum = y.unwrap() + x;
Nov 28 12:38:32.842 INFO [stderr]     |         ^^^ help: consider using `_sum` instead
Nov 28 12:38:32.842 INFO [stderr] 
Nov 28 12:38:32.904 INFO [stderr] warning: constant item is never used: `MAX_POINTS`
Nov 28 12:38:32.904 INFO [stderr]   --> src/main.rs:11:1
Nov 28 12:38:32.904 INFO [stderr]    |
Nov 28 12:38:32.904 INFO [stderr] 11 | const MAX_POINTS: u32 = 100_000;
Nov 28 12:38:32.904 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 12:38:32.904 INFO [stderr]    |
Nov 28 12:38:32.904 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 28 12:38:32.904 INFO [stderr] 
Nov 28 12:38:32.904 INFO [stderr] warning: function is never used: `main_old`
Nov 28 12:38:32.904 INFO [stderr]   --> src/main.rs:14:1
Nov 28 12:38:32.904 INFO [stderr]    |
Nov 28 12:38:32.904 INFO [stderr] 14 | fn main_old() {    
Nov 28 12:38:32.904 INFO [stderr]    | ^^^^^^^^^^^^^
Nov 28 12:38:32.904 INFO [stderr] 
Nov 28 12:38:32.904 INFO [stderr] warning: function is never used: `another_function`
Nov 28 12:38:32.905 INFO [stderr]   --> src/main.rs:79:1
Nov 28 12:38:32.905 INFO [stderr]    |
Nov 28 12:38:32.905 INFO [stderr] 79 | fn another_function(a0: i32, a1: i32, a2: i32) {
Nov 28 12:38:32.905 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 12:38:32.905 INFO [stderr] 
Nov 28 12:38:32.905 INFO [stderr] warning: function is never used: `five`
Nov 28 12:38:32.905 INFO [stderr]   --> src/main.rs:85:1
Nov 28 12:38:32.905 INFO [stderr]    |
Nov 28 12:38:32.905 INFO [stderr] 85 | fn five() -> i32 {
Nov 28 12:38:32.905 INFO [stderr]    | ^^^^^^^^^^^^^^^^
Nov 28 12:38:32.905 INFO [stderr] 
Nov 28 12:38:32.905 INFO [stderr] warning: function is never used: `plus_one`
Nov 28 12:38:32.905 INFO [stderr]   --> src/main.rs:89:1
Nov 28 12:38:32.905 INFO [stderr]    |
Nov 28 12:38:32.905 INFO [stderr] 89 | fn plus_one(x: i32) -> i32 {
Nov 28 12:38:32.905 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 12:38:32.905 INFO [stderr] 
Nov 28 12:38:32.905 INFO [stderr] warning: function is never used: `flow_control`
Nov 28 12:38:32.905 INFO [stderr]   --> src/main.rs:93:1
Nov 28 12:38:32.905 INFO [stderr]    |
Nov 28 12:38:32.905 INFO [stderr] 93 | fn flow_control() {
Nov 28 12:38:32.911 INFO [stderr]    | ^^^^^^^^^^^^^^^^^
Nov 28 12:38:32.911 INFO [stderr] 
Nov 28 12:38:32.911 INFO [stderr] warning: function is never used: `ownership`
Nov 28 12:38:32.911 INFO [stderr]    --> src/main.rs:146:1
Nov 28 12:38:32.911 INFO [stderr]     |
Nov 28 12:38:32.911 INFO [stderr] 146 | fn ownership() {
Nov 28 12:38:32.911 INFO [stderr]     | ^^^^^^^^^^^^^^
Nov 28 12:38:32.911 INFO [stderr] 
Nov 28 12:38:32.911 INFO [stderr] warning: function is never used: `takes_ownership`
Nov 28 12:38:32.911 INFO [stderr]    --> src/main.rs:171:1
Nov 28 12:38:32.911 INFO [stderr]     |
Nov 28 12:38:32.911 INFO [stderr] 171 | fn takes_ownership(some_string: String) {
Nov 28 12:38:32.911 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 12:38:32.911 INFO [stderr] 
Nov 28 12:38:32.911 INFO [stderr] warning: function is never used: `makes_copy`
Nov 28 12:38:32.911 INFO [stderr]    --> src/main.rs:176:1
Nov 28 12:38:32.911 INFO [stderr]     |
Nov 28 12:38:32.911 INFO [stderr] 176 | fn makes_copy(some_integer: i32) {
Nov 28 12:38:32.911 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 12:38:32.911 INFO [stderr] 
Nov 28 12:38:32.911 INFO [stderr] warning: function is never used: `gives_ownership`
Nov 28 12:38:32.911 INFO [stderr]    --> src/main.rs:181:1
Nov 28 12:38:32.911 INFO [stderr]     |
Nov 28 12:38:32.911 INFO [stderr] 181 | fn gives_ownership() -> String {
Nov 28 12:38:32.911 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 12:38:32.911 INFO [stderr] 
Nov 28 12:38:32.911 INFO [stderr] warning: function is never used: `takes_and_gives_back`
Nov 28 12:38:32.911 INFO [stderr]    --> src/main.rs:186:1
Nov 28 12:38:32.911 INFO [stderr]     |
Nov 28 12:38:32.911 INFO [stderr] 186 | fn takes_and_gives_back(a_string: String) -> String {
Nov 28 12:38:32.911 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 12:38:32.911 INFO [stderr] 
Nov 28 12:38:32.911 INFO [stderr] warning: function is never used: `calculate_length`
Nov 28 12:38:32.911 INFO [stderr]    --> src/main.rs:190:1
Nov 28 12:38:32.911 INFO [stderr]     |
Nov 28 12:38:32.911 INFO [stderr] 190 | fn calculate_length(s: String) -> (String, usize) {
Nov 28 12:38:32.911 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 12:38:32.911 INFO [stderr] 
Nov 28 12:38:32.911 INFO [stderr] warning: function is never used: `references`
Nov 28 12:38:32.911 INFO [stderr]    --> src/main.rs:197:1
Nov 28 12:38:32.911 INFO [stderr]     |
Nov 28 12:38:32.911 INFO [stderr] 197 | fn references() {
Nov 28 12:38:32.911 INFO [stderr]     | ^^^^^^^^^^^^^^^
Nov 28 12:38:32.911 INFO [stderr] 
Nov 28 12:38:32.911 INFO [stderr] warning: function is never used: `calculate_length_ref`
Nov 28 12:38:32.911 INFO [stderr]    --> src/main.rs:209:1
Nov 28 12:38:32.911 INFO [stderr]     |
Nov 28 12:38:32.911 INFO [stderr] 209 | fn calculate_length_ref(s: &String) -> usize {
Nov 28 12:38:32.911 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 12:38:32.911 INFO [stderr] 
Nov 28 12:38:32.911 INFO [stderr] warning: function is never used: `mut_references`
Nov 28 12:38:32.911 INFO [stderr]    --> src/main.rs:215:1
Nov 28 12:38:32.911 INFO [stderr]     |
Nov 28 12:38:32.911 INFO [stderr] 215 | fn mut_references() {
Nov 28 12:38:32.911 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^
Nov 28 12:38:32.911 INFO [stderr] 
Nov 28 12:38:32.911 INFO [stderr] warning: function is never used: `change`
Nov 28 12:38:32.911 INFO [stderr]    --> src/main.rs:222:1
Nov 28 12:38:32.911 INFO [stderr]     |
Nov 28 12:38:32.911 INFO [stderr] 222 | fn change(some_string: &mut String) {
Nov 28 12:38:32.911 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 12:38:32.911 INFO [stderr] 
Nov 28 12:38:32.911 INFO [stderr] warning: function is never used: `no_dangle`
Nov 28 12:38:32.911 INFO [stderr]    --> src/main.rs:227:1
Nov 28 12:38:32.911 INFO [stderr]     |
Nov 28 12:38:32.911 INFO [stderr] 227 | fn no_dangle() -> String {
Nov 28 12:38:32.911 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 12:38:32.911 INFO [stderr] 
Nov 28 12:38:32.911 INFO [stderr] warning: function is never used: `word_runner`
Nov 28 12:38:32.911 INFO [stderr]    --> src/main.rs:238:1
Nov 28 12:38:32.911 INFO [stderr]     |
Nov 28 12:38:32.911 INFO [stderr] 238 | fn word_runner() {
Nov 28 12:38:32.911 INFO [stderr]     | ^^^^^^^^^^^^^^^^
Nov 28 12:38:32.911 INFO [stderr] 
Nov 28 12:38:32.911 INFO [stderr] warning: function is never used: `first_word`
Nov 28 12:38:32.911 INFO [stderr]    --> src/main.rs:264:1
Nov 28 12:38:32.911 INFO [stderr]     |
Nov 28 12:38:32.911 INFO [stderr] 264 | fn first_word(s: &String) -> usize {
Nov 28 12:38:32.911 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 12:38:32.911 INFO [stderr] 
Nov 28 12:38:32.911 INFO [stderr] warning: function is never used: `first_word_slice`
Nov 28 12:38:32.912 INFO [stderr]    --> src/main.rs:277:1
Nov 28 12:38:32.912 INFO [stderr]     |
Nov 28 12:38:32.912 INFO [stderr] 277 | fn first_word_slice(s: &String) -> &str { //string slice written as &str
Nov 28 12:38:32.912 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 12:38:32.912 INFO [stderr] 
Nov 28 12:38:32.912 INFO [stderr] warning: function is never used: `first_word_improved`
Nov 28 12:38:32.912 INFO [stderr]    --> src/main.rs:288:1
Nov 28 12:38:32.912 INFO [stderr]     |
Nov 28 12:38:32.912 INFO [stderr] 288 | fn first_word_improved(s: &str) -> &str {
Nov 28 12:38:32.912 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 12:38:32.912 INFO [stderr] 
Nov 28 12:38:32.912 INFO [stderr] warning: struct is never constructed: `User`
Nov 28 12:38:32.912 INFO [stderr]    --> src/main.rs:299:1
Nov 28 12:38:32.912 INFO [stderr]     |
Nov 28 12:38:32.912 INFO [stderr] 299 | struct User {
Nov 28 12:38:32.912 INFO [stderr]     | ^^^^^^^^^^^
Nov 28 12:38:32.912 INFO [stderr] 
Nov 28 12:38:32.912 INFO [stderr] warning: function is never used: `my_structs`
Nov 28 12:38:32.912 INFO [stderr]    --> src/main.rs:306:1
Nov 28 12:38:32.912 INFO [stderr]     |
Nov 28 12:38:32.912 INFO [stderr] 306 | fn my_structs() {
Nov 28 12:38:32.912 INFO [stderr]     | ^^^^^^^^^^^^^^^
Nov 28 12:38:32.912 INFO [stderr] 
Nov 28 12:38:32.912 INFO [stderr] warning: function is never used: `build_user`
Nov 28 12:38:32.912 INFO [stderr]    --> src/main.rs:343:1
Nov 28 12:38:32.912 INFO [stderr]     |
Nov 28 12:38:32.912 INFO [stderr] 343 | fn build_user(email: String, username: String) -> User {
Nov 28 12:38:32.912 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 12:38:32.912 INFO [stderr] 
Nov 28 12:38:32.912 INFO [stderr] warning: function is never used: `test_build_user`
Nov 28 12:38:32.912 INFO [stderr]    --> src/main.rs:353:1
Nov 28 12:38:32.912 INFO [stderr]     |
Nov 28 12:38:32.912 INFO [stderr] 353 | fn test_build_user() {
Nov 28 12:38:32.912 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^
Nov 28 12:38:32.912 INFO [stderr] 
Nov 28 12:38:32.912 INFO [stderr] warning: struct is never constructed: `Color`
Nov 28 12:38:32.912 INFO [stderr]    --> src/main.rs:362:1
Nov 28 12:38:32.912 INFO [stderr]     |
Nov 28 12:38:32.912 INFO [stderr] 362 | struct Color(i32, i32, i32); // structs without named fields.
Nov 28 12:38:32.912 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 12:38:32.912 INFO [stderr] 
Nov 28 12:38:32.912 INFO [stderr] warning: function is never used: `test_tuple_structs`
Nov 28 12:38:32.912 INFO [stderr]    --> src/main.rs:364:1
Nov 28 12:38:32.912 INFO [stderr]     |
Nov 28 12:38:32.912 INFO [stderr] 364 | fn test_tuple_structs() {
Nov 28 12:38:32.912 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 12:38:32.912 INFO [stderr] 
Nov 28 12:38:32.912 INFO [stderr] warning: struct is never constructed: `Rectangle`
Nov 28 12:38:32.912 INFO [stderr]    --> src/main.rs:369:1
Nov 28 12:38:32.912 INFO [stderr]     |
Nov 28 12:38:32.912 INFO [stderr] 369 | struct Rectangle {
Nov 28 12:38:32.912 INFO [stderr]     | ^^^^^^^^^^^^^^^^
Nov 28 12:38:32.912 INFO [stderr] 
Nov 28 12:38:32.912 INFO [stderr] warning: method is never used: `area`
Nov 28 12:38:32.912 INFO [stderr]    --> src/main.rs:378:5
Nov 28 12:38:32.912 INFO [stderr]     |
Nov 28 12:38:32.912 INFO [stderr] 378 |     fn area(&self) -> u32 {
Nov 28 12:38:32.912 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^
Nov 28 12:38:32.912 INFO [stderr] 
Nov 28 12:38:32.912 INFO [stderr] warning: method is never used: `square`
Nov 28 12:38:32.912 INFO [stderr]    --> src/main.rs:383:5
Nov 28 12:38:32.912 INFO [stderr]     |
Nov 28 12:38:32.912 INFO [stderr] 383 |     fn square(size: u32) -> Rectangle {
Nov 28 12:38:32.912 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 12:38:32.912 INFO [stderr] 
Nov 28 12:38:32.912 INFO [stderr] warning: function is never used: `main_old2`
Nov 28 12:38:32.912 INFO [stderr]    --> src/main.rs:388:1
Nov 28 12:38:32.912 INFO [stderr]     |
Nov 28 12:38:32.912 INFO [stderr] 388 | fn main_old2() {
Nov 28 12:38:32.912 INFO [stderr]     | ^^^^^^^^^^^^^^
Nov 28 12:38:32.912 INFO [stderr] 
Nov 28 12:38:32.912 INFO [stderr] warning: function is never used: `rectangle_examples`
Nov 28 12:38:32.912 INFO [stderr]    --> src/main.rs:392:1
Nov 28 12:38:32.912 INFO [stderr]     |
Nov 28 12:38:32.912 INFO [stderr] 392 | fn rectangle_examples() {
Nov 28 12:38:32.912 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 12:38:32.912 INFO [stderr] 
Nov 28 12:38:32.912 INFO [stderr] warning: function is never used: `testing_referencing`
Nov 28 12:38:32.912 INFO [stderr]    --> src/main.rs:407:1
Nov 28 12:38:32.912 INFO [stderr]     |
Nov 28 12:38:32.912 INFO [stderr] 407 | fn testing_referencing(rect: &Rectangle) {
Nov 28 12:38:32.913 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 12:38:32.913 INFO [stderr] 
Nov 28 12:38:32.913 INFO [stderr] warning: enum is never used: `IpAddrKind`
Nov 28 12:38:32.913 INFO [stderr]    --> src/main.rs:411:1
Nov 28 12:38:32.913 INFO [stderr]     |
Nov 28 12:38:32.913 INFO [stderr] 411 | enum IpAddrKind {
Nov 28 12:38:32.913 INFO [stderr]     | ^^^^^^^^^^^^^^^
Nov 28 12:38:32.913 INFO [stderr] 
Nov 28 12:38:32.913 INFO [stderr] warning: struct is never constructed: `IpAddrStruct`
Nov 28 12:38:32.913 INFO [stderr]    --> src/main.rs:416:1
Nov 28 12:38:32.913 INFO [stderr]     |
Nov 28 12:38:32.913 INFO [stderr] 416 | struct IpAddrStruct {  
Nov 28 12:38:32.913 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^
Nov 28 12:38:32.913 INFO [stderr] 
Nov 28 12:38:32.913 INFO [stderr] warning: enum is never used: `IpAddrS`
Nov 28 12:38:32.913 INFO [stderr]    --> src/main.rs:421:1
Nov 28 12:38:32.913 INFO [stderr]     |
Nov 28 12:38:32.913 INFO [stderr] 421 | enum IpAddrS {
Nov 28 12:38:32.913 INFO [stderr]     | ^^^^^^^^^^^^
Nov 28 12:38:32.913 INFO [stderr] 
Nov 28 12:38:32.913 INFO [stderr] warning: enum is never used: `IpAddr`
Nov 28 12:38:32.913 INFO [stderr]    --> src/main.rs:426:1
Nov 28 12:38:32.913 INFO [stderr]     |
Nov 28 12:38:32.913 INFO [stderr] 426 | enum IpAddr {
Nov 28 12:38:32.913 INFO [stderr]     | ^^^^^^^^^^^
Nov 28 12:38:32.913 INFO [stderr] 
Nov 28 12:38:32.913 INFO [stderr] warning: function is never used: `main_old3`
Nov 28 12:38:32.913 INFO [stderr]    --> src/main.rs:431:1
Nov 28 12:38:32.913 INFO [stderr]     |
Nov 28 12:38:32.913 INFO [stderr] 431 | fn main_old3() {
Nov 28 12:38:32.913 INFO [stderr]     | ^^^^^^^^^^^^^^
Nov 28 12:38:32.913 INFO [stderr] 
Nov 28 12:38:32.913 INFO [stderr] warning: function is never used: `route`
Nov 28 12:38:32.913 INFO [stderr]    --> src/main.rs:458:1
Nov 28 12:38:32.913 INFO [stderr]     |
Nov 28 12:38:32.913 INFO [stderr] 458 | fn route(ip_type: IpAddrKind) {}
Nov 28 12:38:32.913 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 12:38:32.913 INFO [stderr] 
Nov 28 12:38:32.913 INFO [stderr] warning: enum is never used: `Message`
Nov 28 12:38:32.913 INFO [stderr]    --> src/main.rs:460:1
Nov 28 12:38:32.913 INFO [stderr]     |
Nov 28 12:38:32.913 INFO [stderr] 460 | enum Message {
Nov 28 12:38:32.913 INFO [stderr]     | ^^^^^^^^^^^^
Nov 28 12:38:32.913 INFO [stderr] 
Nov 28 12:38:32.913 INFO [stderr] warning: struct is never constructed: `QuitMessage`
Nov 28 12:38:32.913 INFO [stderr]    --> src/main.rs:467:1
Nov 28 12:38:32.913 INFO [stderr]     |
Nov 28 12:38:32.913 INFO [stderr] 467 | struct QuitMessage; // unit struct
Nov 28 12:38:32.913 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^
Nov 28 12:38:32.913 INFO [stderr] 
Nov 28 12:38:32.913 INFO [stderr] warning: struct is never constructed: `MoveMessage`
Nov 28 12:38:32.913 INFO [stderr]    --> src/main.rs:468:1
Nov 28 12:38:32.913 INFO [stderr]     |
Nov 28 12:38:32.913 INFO [stderr] 468 | struct MoveMessage {
Nov 28 12:38:32.913 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^
Nov 28 12:38:32.913 INFO [stderr] 
Nov 28 12:38:32.913 INFO [stderr] warning: struct is never constructed: `WriteMessage`
Nov 28 12:38:32.913 INFO [stderr]    --> src/main.rs:473:1
Nov 28 12:38:32.913 INFO [stderr]     |
Nov 28 12:38:32.913 INFO [stderr] 473 | struct WriteMessage(String);
Nov 28 12:38:32.913 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 12:38:32.913 INFO [stderr] 
Nov 28 12:38:32.913 INFO [stderr] warning: struct is never constructed: `ChangeColorMessage`
Nov 28 12:38:32.913 INFO [stderr]    --> src/main.rs:474:1
Nov 28 12:38:32.913 INFO [stderr]     |
Nov 28 12:38:32.913 INFO [stderr] 474 | struct ChangeColorMessage(i32, i32, i32);
Nov 28 12:38:32.913 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 12:38:32.913 INFO [stderr] 
Nov 28 12:38:32.913 INFO [stderr] warning: method is never used: `call`
Nov 28 12:38:32.913 INFO [stderr]    --> src/main.rs:477:5
Nov 28 12:38:32.913 INFO [stderr]     |
Nov 28 12:38:32.913 INFO [stderr] 477 |     fn call(&self) {
Nov 28 12:38:32.913 INFO [stderr]     |     ^^^^^^^^^^^^^^
Nov 28 12:38:32.913 INFO [stderr] 
Nov 28 12:38:32.913 INFO [stderr] warning: function is never used: `enum_stuff`
Nov 28 12:38:32.913 INFO [stderr]    --> src/main.rs:482:1
Nov 28 12:38:32.913 INFO [stderr]     |
Nov 28 12:38:32.913 INFO [stderr] 482 | fn enum_stuff() {
Nov 28 12:38:32.913 INFO [stderr]     | ^^^^^^^^^^^^^^^
Nov 28 12:38:32.913 INFO [stderr] 
Nov 28 12:38:32.913 INFO [stderr] warning: function is never used: `optional_enum`
Nov 28 12:38:32.913 INFO [stderr]    --> src/main.rs:488:1
Nov 28 12:38:32.913 INFO [stderr]     |
Nov 28 12:38:32.914 INFO [stderr] 488 | fn optional_enum() {
Nov 28 12:38:32.914 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^
Nov 28 12:38:32.914 INFO [stderr] 
Nov 28 12:38:32.914 INFO [stderr] warning: enum is never used: `UsState`
Nov 28 12:38:32.914 INFO [stderr]    --> src/main.rs:505:1
Nov 28 12:38:32.914 INFO [stderr]     |
Nov 28 12:38:32.914 INFO [stderr] 505 | enum UsState {
Nov 28 12:38:32.925 INFO [stderr]     | ^^^^^^^^^^^^
Nov 28 12:38:32.925 INFO [stderr] warning: unused variable: `word`
Nov 28 12:38:32.925 INFO [stderr]    --> src/main.rs:241:9
Nov 28 12:38:32.925 INFO [stderr]     |
Nov 28 12:38:32.925 INFO [stderr] 241 |     let word = first_word(&s);
Nov 28 12:38:32.925 INFO [stderr]     |         ^^^^ help: consider using `_word` instead
Nov 28 12:38:32.925 INFO [stderr]     |
Nov 28 12:38:32.925 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Nov 28 12:38:32.925 INFO [stderr] 
Nov 28 12:38:32.925 INFO [stderr] warning: unused variable: `user3`
Nov 28 12:38:32.925 INFO [stderr]    --> src/main.rs:325:9
Nov 28 12:38:32.925 INFO [stderr]     |
Nov 28 12:38:32.925 INFO [stderr] 325 |     let user3 = User {
Nov 28 12:38:32.925 INFO [stderr]     |         ^^^^^ help: consider using `_user3` instead
Nov 28 12:38:32.925 INFO [stderr] 
Nov 28 12:38:32.925 INFO [stderr] warning: unused variable: `user4`
Nov 28 12:38:32.925 INFO [stderr]    --> src/main.rs:334:9
Nov 28 12:38:32.925 INFO [stderr]     |
Nov 28 12:38:32.925 INFO [stderr] 334 |     let user4 = User {
Nov 28 12:38:32.925 INFO [stderr]     |         ^^^^^ help: consider using `_user4` instead
Nov 28 12:38:32.925 INFO [stderr] 
Nov 28 12:38:32.925 INFO [stderr] warning: unused variable: `black`
Nov 28 12:38:32.925 INFO [stderr]    --> src/main.rs:365:9
Nov 28 12:38:32.925 INFO [stderr]     |
Nov 28 12:38:32.925 INFO [stderr] 365 |     let black = Color(0, 0, 0);
Nov 28 12:38:32.925 INFO [stderr]     |         ^^^^^ help: consider using `_black` instead
Nov 28 12:38:32.925 INFO [stderr] 
Nov 28 12:38:32.925 INFO [stderr] warning: unused variable: `home`
Nov 28 12:38:32.925 INFO [stderr]    --> src/main.rs:435:9
Nov 28 12:38:32.925 INFO [stderr]     |
Nov 28 12:38:32.925 INFO [stderr] 435 |     let home = IpAddrStruct {
Nov 28 12:38:32.925 INFO [stderr]     |         ^^^^ help: consider using `_home` instead
Nov 28 12:38:32.925 INFO [stderr] 
Nov 28 12:38:32.925 INFO [stderr] warning: unused variable: `loopback`
Nov 28 12:38:32.925 INFO [stderr]    --> src/main.rs:440:9
Nov 28 12:38:32.925 INFO [stderr]     |
Nov 28 12:38:32.925 INFO [stderr] 440 |     let loopback = IpAddrStruct {
Nov 28 12:38:32.925 INFO [stderr]     |         ^^^^^^^^ help: consider using `_loopback` instead
Nov 28 12:38:32.925 INFO [stderr] 
Nov 28 12:38:32.925 INFO [stderr] warning: unused variable: `h`
Nov 28 12:38:32.925 INFO [stderr]    --> src/main.rs:445:9
Nov 28 12:38:32.925 INFO [stderr]     |
Nov 28 12:38:32.925 INFO [stderr] 445 |     let h = IpAddrS::V4(String::from("127.0.0.1"));
Nov 28 12:38:32.925 INFO [stderr]     |         ^ help: consider using `_h` instead
Nov 28 12:38:32.925 INFO [stderr] 
Nov 28 12:38:32.925 INFO [stderr] warning: unused variable: `lb`
Nov 28 12:38:32.925 INFO [stderr]    --> src/main.rs:446:9
Nov 28 12:38:32.925 INFO [stderr]     |
Nov 28 12:38:32.925 INFO [stderr] 446 |     let lb = IpAddrS::V6(String::from("::1"));
Nov 28 12:38:32.925 INFO [stderr]     |         ^^ help: consider using `_lb` instead
Nov 28 12:38:32.925 INFO [stderr] 
Nov 28 12:38:32.925 INFO [stderr] warning: unused variable: `h2`
Nov 28 12:38:32.925 INFO [stderr]    --> src/main.rs:448:9
Nov 28 12:38:32.925 INFO [stderr]     |
Nov 28 12:38:32.925 INFO [stderr] 448 |     let h2  = IpAddr::V4(127, 0, 0, 1);
Nov 28 12:38:32.925 INFO [stderr]     |         ^^ help: consider using `_h2` instead
Nov 28 12:38:32.925 INFO [stderr] 
Nov 28 12:38:32.925 INFO [stderr] warning: unused variable: `ip_type`
Nov 28 12:38:32.925 INFO [stderr]    --> src/main.rs:458:10
Nov 28 12:38:32.925 INFO [stderr]     |
Nov 28 12:38:32.925 INFO [stderr] 458 | fn route(ip_type: IpAddrKind) {}
Nov 28 12:38:32.925 INFO [stderr]     |          ^^^^^^^ help: consider using `_ip_type` instead
Nov 28 12:38:32.925 INFO [stderr] 
Nov 28 12:38:32.925 INFO [stderr] warning: unused variable: `some_number`
Nov 28 12:38:32.925 INFO [stderr]    --> src/main.rs:489:9
Nov 28 12:38:32.925 INFO [stderr]     |
Nov 28 12:38:32.925 INFO [stderr] 489 |     let some_number = Some(5);
Nov 28 12:38:32.925 INFO [stderr]     |         ^^^^^^^^^^^ help: consider using `_some_number` instead
Nov 28 12:38:32.925 INFO [stderr] 
Nov 28 12:38:32.925 INFO [stderr] warning: unused variable: `some_string`
Nov 28 12:38:32.925 INFO [stderr]    --> src/main.rs:490:9
Nov 28 12:38:32.925 INFO [stderr]     |
Nov 28 12:38:32.925 INFO [stderr] 490 |     let some_string = Some("a string");
Nov 28 12:38:32.925 INFO [stderr]     |         ^^^^^^^^^^^ help: consider using `_some_string` instead
Nov 28 12:38:32.925 INFO [stderr] 
Nov 28 12:38:32.926 INFO [stderr] warning: unused variable: `absent_number`
Nov 28 12:38:32.926 INFO [stderr]    --> src/main.rs:492:9
Nov 28 12:38:32.926 INFO [stderr]     |
Nov 28 12:38:32.926 INFO [stderr] 492 |     let absent_number: Option<i32> = None;
Nov 28 12:38:32.926 INFO [stderr]     |         ^^^^^^^^^^^^^ help: consider using `_absent_number` instead
Nov 28 12:38:32.926 INFO [stderr] 
Nov 28 12:38:32.926 INFO [stderr] warning: unused variable: `sum`
Nov 28 12:38:32.926 INFO [stderr]    --> src/main.rs:499:9
Nov 28 12:38:32.926 INFO [stderr]     |
Nov 28 12:38:32.926 INFO [stderr] 499 |     let sum = y.unwrap() + x;
Nov 28 12:38:32.926 INFO [stderr]     |         ^^^ help: consider using `_sum` instead
Nov 28 12:38:32.926 INFO [stderr] 
Nov 28 12:38:32.926 INFO [stderr] 
Nov 28 12:38:32.926 INFO [stderr] warning: enum is never used: `Coin`
Nov 28 12:38:32.926 INFO [stderr]    --> src/main.rs:510:1
Nov 28 12:38:32.926 INFO [stderr]     |
Nov 28 12:38:32.926 INFO [stderr] 510 | enum Coin { 
Nov 28 12:38:32.926 INFO [stderr]     | ^^^^^^^^^
Nov 28 12:38:32.926 INFO [stderr] 
Nov 28 12:38:32.926 INFO [stderr] warning: function is never used: `value_in_cents`
Nov 28 12:38:32.926 INFO [stderr]    --> src/main.rs:517:1
Nov 28 12:38:32.926 INFO [stderr]     |
Nov 28 12:38:32.926 INFO [stderr] 517 | fn value_in_cents(coin: Coin) -> u32 {
Nov 28 12:38:32.926 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 12:38:32.926 INFO [stderr] 
Nov 28 12:38:32.973 INFO [stderr] warning: constant item is never used: `MAX_POINTS`
Nov 28 12:38:32.973 INFO [stderr]   --> src/main.rs:11:1
Nov 28 12:38:32.973 INFO [stderr]    |
Nov 28 12:38:32.973 INFO [stderr] 11 | const MAX_POINTS: u32 = 100_000;
Nov 28 12:38:32.973 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 12:38:32.973 INFO [stderr]    |
Nov 28 12:38:32.973 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 28 12:38:32.973 INFO [stderr] 
Nov 28 12:38:32.973 INFO [stderr] warning: function is never used: `main_old`
Nov 28 12:38:32.973 INFO [stderr]   --> src/main.rs:14:1
Nov 28 12:38:32.973 INFO [stderr]    |
Nov 28 12:38:32.973 INFO [stderr] 14 | fn main_old() {    
Nov 28 12:38:32.973 INFO [stderr]    | ^^^^^^^^^^^^^
Nov 28 12:38:32.973 INFO [stderr] 
Nov 28 12:38:32.973 INFO [stderr] warning: function is never used: `another_function`
Nov 28 12:38:32.973 INFO [stderr]   --> src/main.rs:79:1
Nov 28 12:38:32.973 INFO [stderr]    |
Nov 28 12:38:32.973 INFO [stderr] 79 | fn another_function(a0: i32, a1: i32, a2: i32) {
Nov 28 12:38:32.973 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 12:38:32.973 INFO [stderr] 
Nov 28 12:38:32.973 INFO [stderr] warning: function is never used: `five`
Nov 28 12:38:32.973 INFO [stderr]   --> src/main.rs:85:1
Nov 28 12:38:32.973 INFO [stderr]    |
Nov 28 12:38:32.973 INFO [stderr] 85 | fn five() -> i32 {
Nov 28 12:38:32.973 INFO [stderr]    | ^^^^^^^^^^^^^^^^
Nov 28 12:38:32.973 INFO [stderr] 
Nov 28 12:38:32.973 INFO [stderr] warning: function is never used: `plus_one`
Nov 28 12:38:32.973 INFO [stderr]   --> src/main.rs:89:1
Nov 28 12:38:32.973 INFO [stderr]    |
Nov 28 12:38:32.973 INFO [stderr] 89 | fn plus_one(x: i32) -> i32 {
Nov 28 12:38:32.973 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 12:38:32.973 INFO [stderr] 
Nov 28 12:38:32.973 INFO [stderr] warning: function is never used: `flow_control`
Nov 28 12:38:32.973 INFO [stderr]   --> src/main.rs:93:1
Nov 28 12:38:32.973 INFO [stderr]    |
Nov 28 12:38:32.973 INFO [stderr] 93 | fn flow_control() {
Nov 28 12:38:32.973 INFO [stderr]    | ^^^^^^^^^^^^^^^^^
Nov 28 12:38:32.973 INFO [stderr] 
Nov 28 12:38:32.974 INFO [stderr] warning: function is never used: `ownership`
Nov 28 12:38:32.974 INFO [stderr]    --> src/main.rs:146:1
Nov 28 12:38:32.974 INFO [stderr]     |
Nov 28 12:38:32.974 INFO [stderr] 146 | fn ownership() {
Nov 28 12:38:32.974 INFO [stderr]     | ^^^^^^^^^^^^^^
Nov 28 12:38:32.974 INFO [stderr] 
Nov 28 12:38:32.974 INFO [stderr] warning: function is never used: `takes_ownership`
Nov 28 12:38:32.974 INFO [stderr]    --> src/main.rs:171:1
Nov 28 12:38:32.974 INFO [stderr]     |
Nov 28 12:38:32.974 INFO [stderr] 171 | fn takes_ownership(some_string: String) {
Nov 28 12:38:32.974 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 12:38:32.974 INFO [stderr] 
Nov 28 12:38:32.974 INFO [stderr] warning: function is never used: `makes_copy`
Nov 28 12:38:32.974 INFO [stderr]    --> src/main.rs:176:1
Nov 28 12:38:32.974 INFO [stderr]     |
Nov 28 12:38:32.974 INFO [stderr] 176 | fn makes_copy(some_integer: i32) {
Nov 28 12:38:32.974 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 12:38:32.974 INFO [stderr] 
Nov 28 12:38:32.974 INFO [stderr] warning: function is never used: `gives_ownership`
Nov 28 12:38:32.974 INFO [stderr]    --> src/main.rs:181:1
Nov 28 12:38:32.974 INFO [stderr]     |
Nov 28 12:38:32.974 INFO [stderr] 181 | fn gives_ownership() -> String {
Nov 28 12:38:32.974 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 12:38:32.974 INFO [stderr] 
Nov 28 12:38:32.974 INFO [stderr] warning: function is never used: `takes_and_gives_back`
Nov 28 12:38:32.974 INFO [stderr]    --> src/main.rs:186:1
Nov 28 12:38:32.974 INFO [stderr]     |
Nov 28 12:38:32.974 INFO [stderr] 186 | fn takes_and_gives_back(a_string: String) -> String {
Nov 28 12:38:32.974 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 12:38:32.974 INFO [stderr] 
Nov 28 12:38:32.974 INFO [stderr] warning: function is never used: `calculate_length`
Nov 28 12:38:32.974 INFO [stderr]    --> src/main.rs:190:1
Nov 28 12:38:32.974 INFO [stderr]     |
Nov 28 12:38:32.974 INFO [stderr] 190 | fn calculate_length(s: String) -> (String, usize) {
Nov 28 12:38:32.974 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 12:38:32.974 INFO [stderr] 
Nov 28 12:38:32.974 INFO [stderr] warning: function is never used: `references`
Nov 28 12:38:32.974 INFO [stderr]    --> src/main.rs:197:1
Nov 28 12:38:32.974 INFO [stderr]     |
Nov 28 12:38:32.974 INFO [stderr] 197 | fn references() {
Nov 28 12:38:32.974 INFO [stderr]     | ^^^^^^^^^^^^^^^
Nov 28 12:38:32.974 INFO [stderr] 
Nov 28 12:38:32.974 INFO [stderr] warning: function is never used: `calculate_length_ref`
Nov 28 12:38:32.974 INFO [stderr]    --> src/main.rs:209:1
Nov 28 12:38:32.974 INFO [stderr]     |
Nov 28 12:38:32.974 INFO [stderr] 209 | fn calculate_length_ref(s: &String) -> usize {
Nov 28 12:38:32.974 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 12:38:32.974 INFO [stderr] 
Nov 28 12:38:32.974 INFO [stderr] warning: function is never used: `mut_references`
Nov 28 12:38:32.974 INFO [stderr]    --> src/main.rs:215:1
Nov 28 12:38:32.974 INFO [stderr]     |
Nov 28 12:38:32.974 INFO [stderr] 215 | fn mut_references() {
Nov 28 12:38:32.974 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^
Nov 28 12:38:32.974 INFO [stderr] 
Nov 28 12:38:32.974 INFO [stderr] warning: function is never used: `change`
Nov 28 12:38:32.974 INFO [stderr]    --> src/main.rs:222:1
Nov 28 12:38:32.974 INFO [stderr]     |
Nov 28 12:38:32.974 INFO [stderr] 222 | fn change(some_string: &mut String) {
Nov 28 12:38:32.974 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 12:38:32.974 INFO [stderr] 
Nov 28 12:38:32.974 INFO [stderr] warning: function is never used: `no_dangle`
Nov 28 12:38:32.974 INFO [stderr]    --> src/main.rs:227:1
Nov 28 12:38:32.974 INFO [stderr]     |
Nov 28 12:38:32.974 INFO [stderr] 227 | fn no_dangle() -> String {
Nov 28 12:38:32.974 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 12:38:32.974 INFO [stderr] 
Nov 28 12:38:32.974 INFO [stderr] warning: function is never used: `word_runner`
Nov 28 12:38:32.974 INFO [stderr]    --> src/main.rs:238:1
Nov 28 12:38:32.974 INFO [stderr]     |
Nov 28 12:38:32.974 INFO [stderr] 238 | fn word_runner() {
Nov 28 12:38:32.974 INFO [stderr]     | ^^^^^^^^^^^^^^^^
Nov 28 12:38:32.974 INFO [stderr] 
Nov 28 12:38:32.974 INFO [stderr] warning: function is never used: `first_word`
Nov 28 12:38:32.974 INFO [stderr]    --> src/main.rs:264:1
Nov 28 12:38:32.974 INFO [stderr]     |
Nov 28 12:38:32.974 INFO [stderr] 264 | fn first_word(s: &String) -> usize {
Nov 28 12:38:32.974 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 12:38:32.974 INFO [stderr] 
Nov 28 12:38:32.974 INFO [stderr] warning: function is never used: `first_word_slice`
Nov 28 12:38:32.974 INFO [stderr]    --> src/main.rs:277:1
Nov 28 12:38:32.974 INFO [stderr]     |
Nov 28 12:38:32.974 INFO [stderr] 277 | fn first_word_slice(s: &String) -> &str { //string slice written as &str
Nov 28 12:38:32.975 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 12:38:32.975 INFO [stderr] 
Nov 28 12:38:32.975 INFO [stderr] warning: function is never used: `first_word_improved`
Nov 28 12:38:32.975 INFO [stderr]    --> src/main.rs:288:1
Nov 28 12:38:32.975 INFO [stderr]     |
Nov 28 12:38:32.975 INFO [stderr] 288 | fn first_word_improved(s: &str) -> &str {
Nov 28 12:38:32.975 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 12:38:32.975 INFO [stderr] 
Nov 28 12:38:32.975 INFO [stderr] warning: struct is never constructed: `User`
Nov 28 12:38:32.975 INFO [stderr]    --> src/main.rs:299:1
Nov 28 12:38:32.975 INFO [stderr]     |
Nov 28 12:38:32.975 INFO [stderr] 299 | struct User {
Nov 28 12:38:32.975 INFO [stderr]     | ^^^^^^^^^^^
Nov 28 12:38:32.975 INFO [stderr] 
Nov 28 12:38:32.975 INFO [stderr] warning: function is never used: `my_structs`
Nov 28 12:38:32.975 INFO [stderr]    --> src/main.rs:306:1
Nov 28 12:38:32.975 INFO [stderr]     |
Nov 28 12:38:32.975 INFO [stderr] 306 | fn my_structs() {
Nov 28 12:38:32.975 INFO [stderr]     | ^^^^^^^^^^^^^^^
Nov 28 12:38:32.975 INFO [stderr] 
Nov 28 12:38:32.975 INFO [stderr] warning: function is never used: `build_user`
Nov 28 12:38:32.975 INFO [stderr]    --> src/main.rs:343:1
Nov 28 12:38:32.975 INFO [stderr]     |
Nov 28 12:38:32.975 INFO [stderr] 343 | fn build_user(email: String, username: String) -> User {
Nov 28 12:38:32.975 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 12:38:32.975 INFO [stderr] 
Nov 28 12:38:32.975 INFO [stderr] warning: function is never used: `test_build_user`
Nov 28 12:38:32.975 INFO [stderr]    --> src/main.rs:353:1
Nov 28 12:38:32.975 INFO [stderr]     |
Nov 28 12:38:32.975 INFO [stderr] 353 | fn test_build_user() {
Nov 28 12:38:32.975 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^
Nov 28 12:38:32.975 INFO [stderr] 
Nov 28 12:38:32.975 INFO [stderr] warning: struct is never constructed: `Color`
Nov 28 12:38:32.975 INFO [stderr]    --> src/main.rs:362:1
Nov 28 12:38:32.975 INFO [stderr]     |
Nov 28 12:38:32.975 INFO [stderr] 362 | struct Color(i32, i32, i32); // structs without named fields.
Nov 28 12:38:32.975 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 12:38:32.975 INFO [stderr] 
Nov 28 12:38:32.975 INFO [stderr] warning: function is never used: `test_tuple_structs`
Nov 28 12:38:32.975 INFO [stderr]    --> src/main.rs:364:1
Nov 28 12:38:32.975 INFO [stderr]     |
Nov 28 12:38:32.975 INFO [stderr] 364 | fn test_tuple_structs() {
Nov 28 12:38:32.975 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 12:38:32.975 INFO [stderr] 
Nov 28 12:38:32.975 INFO [stderr] warning: struct is never constructed: `Rectangle`
Nov 28 12:38:32.975 INFO [stderr]    --> src/main.rs:369:1
Nov 28 12:38:32.975 INFO [stderr]     |
Nov 28 12:38:32.975 INFO [stderr] 369 | struct Rectangle {
Nov 28 12:38:32.975 INFO [stderr]     | ^^^^^^^^^^^^^^^^
Nov 28 12:38:32.975 INFO [stderr] 
Nov 28 12:38:32.975 INFO [stderr] warning: method is never used: `area`
Nov 28 12:38:32.975 INFO [stderr]    --> src/main.rs:378:5
Nov 28 12:38:32.975 INFO [stderr]     |
Nov 28 12:38:32.975 INFO [stderr] 378 |     fn area(&self) -> u32 {
Nov 28 12:38:32.975 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^
Nov 28 12:38:32.975 INFO [stderr] 
Nov 28 12:38:32.975 INFO [stderr] warning: method is never used: `square`
Nov 28 12:38:32.975 INFO [stderr]    --> src/main.rs:383:5
Nov 28 12:38:32.975 INFO [stderr]     |
Nov 28 12:38:32.975 INFO [stderr] 383 |     fn square(size: u32) -> Rectangle {
Nov 28 12:38:32.975 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 12:38:32.975 INFO [stderr] 
Nov 28 12:38:32.975 INFO [stderr] warning: function is never used: `main_old2`
Nov 28 12:38:32.975 INFO [stderr]    --> src/main.rs:388:1
Nov 28 12:38:32.975 INFO [stderr]     |
Nov 28 12:38:32.975 INFO [stderr] 388 | fn main_old2() {
Nov 28 12:38:32.975 INFO [stderr]     | ^^^^^^^^^^^^^^
Nov 28 12:38:32.975 INFO [stderr] 
Nov 28 12:38:32.975 INFO [stderr] warning: function is never used: `rectangle_examples`
Nov 28 12:38:32.975 INFO [stderr]    --> src/main.rs:392:1
Nov 28 12:38:32.975 INFO [stderr]     |
Nov 28 12:38:32.975 INFO [stderr] 392 | fn rectangle_examples() {
Nov 28 12:38:32.975 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 12:38:32.975 INFO [stderr] 
Nov 28 12:38:32.975 INFO [stderr] warning: function is never used: `testing_referencing`
Nov 28 12:38:32.975 INFO [stderr]    --> src/main.rs:407:1
Nov 28 12:38:32.975 INFO [stderr]     |
Nov 28 12:38:32.975 INFO [stderr] 407 | fn testing_referencing(rect: &Rectangle) {
Nov 28 12:38:32.975 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 12:38:32.975 INFO [stderr] 
Nov 28 12:38:32.975 INFO [stderr] warning: enum is never used: `IpAddrKind`
Nov 28 12:38:32.976 INFO [stderr]    --> src/main.rs:411:1
Nov 28 12:38:32.976 INFO [stderr]     |
Nov 28 12:38:32.976 INFO [stderr] 411 | enum IpAddrKind {
Nov 28 12:38:32.976 INFO [stderr]     | ^^^^^^^^^^^^^^^
Nov 28 12:38:32.976 INFO [stderr] 
Nov 28 12:38:32.976 INFO [stderr] warning: struct is never constructed: `IpAddrStruct`
Nov 28 12:38:32.976 INFO [stderr]    --> src/main.rs:416:1
Nov 28 12:38:32.976 INFO [stderr]     |
Nov 28 12:38:32.976 INFO [stderr] 416 | struct IpAddrStruct {  
Nov 28 12:38:32.976 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^
Nov 28 12:38:32.976 INFO [stderr] 
Nov 28 12:38:32.976 INFO [stderr] warning: enum is never used: `IpAddrS`
Nov 28 12:38:32.976 INFO [stderr]    --> src/main.rs:421:1
Nov 28 12:38:32.976 INFO [stderr]     |
Nov 28 12:38:32.976 INFO [stderr] 421 | enum IpAddrS {
Nov 28 12:38:32.976 INFO [stderr]     | ^^^^^^^^^^^^
Nov 28 12:38:32.976 INFO [stderr] 
Nov 28 12:38:32.976 INFO [stderr] warning: enum is never used: `IpAddr`
Nov 28 12:38:32.976 INFO [stderr]    --> src/main.rs:426:1
Nov 28 12:38:32.976 INFO [stderr]     |
Nov 28 12:38:32.976 INFO [stderr] 426 | enum IpAddr {
Nov 28 12:38:32.976 INFO [stderr]     | ^^^^^^^^^^^
Nov 28 12:38:32.976 INFO [stderr] 
Nov 28 12:38:32.976 INFO [stderr] warning: function is never used: `main_old3`
Nov 28 12:38:32.976 INFO [stderr]    --> src/main.rs:431:1
Nov 28 12:38:32.976 INFO [stderr]     |
Nov 28 12:38:32.976 INFO [stderr] 431 | fn main_old3() {
Nov 28 12:38:32.976 INFO [stderr]     | ^^^^^^^^^^^^^^
Nov 28 12:38:32.976 INFO [stderr] 
Nov 28 12:38:32.976 INFO [stderr] warning: function is never used: `route`
Nov 28 12:38:32.976 INFO [stderr]    --> src/main.rs:458:1
Nov 28 12:38:32.976 INFO [stderr]     |
Nov 28 12:38:32.976 INFO [stderr] 458 | fn route(ip_type: IpAddrKind) {}
Nov 28 12:38:32.976 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 12:38:32.976 INFO [stderr] 
Nov 28 12:38:32.976 INFO [stderr] warning: enum is never used: `Message`
Nov 28 12:38:32.976 INFO [stderr]    --> src/main.rs:460:1
Nov 28 12:38:32.976 INFO [stderr]     |
Nov 28 12:38:32.976 INFO [stderr] 460 | enum Message {
Nov 28 12:38:32.976 INFO [stderr]     | ^^^^^^^^^^^^
Nov 28 12:38:32.976 INFO [stderr] 
Nov 28 12:38:32.976 INFO [stderr] warning: struct is never constructed: `QuitMessage`
Nov 28 12:38:32.976 INFO [stderr]    --> src/main.rs:467:1
Nov 28 12:38:32.976 INFO [stderr]     |
Nov 28 12:38:32.976 INFO [stderr] 467 | struct QuitMessage; // unit struct
Nov 28 12:38:32.976 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^
Nov 28 12:38:32.976 INFO [stderr] 
Nov 28 12:38:32.976 INFO [stderr] warning: struct is never constructed: `MoveMessage`
Nov 28 12:38:32.976 INFO [stderr]    --> src/main.rs:468:1
Nov 28 12:38:32.976 INFO [stderr]     |
Nov 28 12:38:32.976 INFO [stderr] 468 | struct MoveMessage {
Nov 28 12:38:32.977 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^
Nov 28 12:38:32.977 INFO [stderr] 
Nov 28 12:38:32.977 INFO [stderr] warning: struct is never constructed: `WriteMessage`
Nov 28 12:38:32.977 INFO [stderr]    --> src/main.rs:473:1
Nov 28 12:38:32.977 INFO [stderr]     |
Nov 28 12:38:32.977 INFO [stderr] 473 | struct WriteMessage(String);
Nov 28 12:38:32.977 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 12:38:32.977 INFO [stderr] 
Nov 28 12:38:32.977 INFO [stderr] warning: struct is never constructed: `ChangeColorMessage`
Nov 28 12:38:32.977 INFO [stderr]    --> src/main.rs:474:1
Nov 28 12:38:32.977 INFO [stderr]     |
Nov 28 12:38:32.977 INFO [stderr] 474 | struct ChangeColorMessage(i32, i32, i32);
Nov 28 12:38:32.977 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 12:38:32.977 INFO [stderr] 
Nov 28 12:38:32.977 INFO [stderr] warning: method is never used: `call`
Nov 28 12:38:32.977 INFO [stderr]    --> src/main.rs:477:5
Nov 28 12:38:32.977 INFO [stderr]     |
Nov 28 12:38:32.977 INFO [stderr] 477 |     fn call(&self) {
Nov 28 12:38:32.977 INFO [stderr]     |     ^^^^^^^^^^^^^^
Nov 28 12:38:32.977 INFO [stderr] 
Nov 28 12:38:32.977 INFO [stderr] warning: function is never used: `enum_stuff`
Nov 28 12:38:32.977 INFO [stderr]    --> src/main.rs:482:1
Nov 28 12:38:32.977 INFO [stderr]     |
Nov 28 12:38:32.977 INFO [stderr] 482 | fn enum_stuff() {
Nov 28 12:38:32.977 INFO [stderr]     | ^^^^^^^^^^^^^^^
Nov 28 12:38:32.977 INFO [stderr] 
Nov 28 12:38:32.977 INFO [stderr] warning: function is never used: `optional_enum`
Nov 28 12:38:32.977 INFO [stderr]    --> src/main.rs:488:1
Nov 28 12:38:32.977 INFO [stderr]     |
Nov 28 12:38:32.977 INFO [stderr] 488 | fn optional_enum() {
Nov 28 12:38:32.977 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^
Nov 28 12:38:32.977 INFO [stderr] 
Nov 28 12:38:32.977 INFO [stderr] warning: enum is never used: `UsState`
Nov 28 12:38:32.977 INFO [stderr]    --> src/main.rs:505:1
Nov 28 12:38:32.977 INFO [stderr]     |
Nov 28 12:38:32.977 INFO [stderr] 505 | enum UsState {
Nov 28 12:38:32.977 INFO [stderr]     | ^^^^^^^^^^^^
Nov 28 12:38:32.977 INFO [stderr] 
Nov 28 12:38:32.977 INFO [stderr] warning: enum is never used: `Coin`
Nov 28 12:38:32.977 INFO [stderr]    --> src/main.rs:510:1
Nov 28 12:38:32.977 INFO [stderr]     |
Nov 28 12:38:32.977 INFO [stderr] 510 | enum Coin { 
Nov 28 12:38:32.977 INFO [stderr]     | ^^^^^^^^^
Nov 28 12:38:32.977 INFO [stderr] 
Nov 28 12:38:32.977 INFO [stderr] warning: function is never used: `value_in_cents`
Nov 28 12:38:32.977 INFO [stderr]    --> src/main.rs:517:1
Nov 28 12:38:32.977 INFO [stderr]     |
Nov 28 12:38:32.977 INFO [stderr] 517 | fn value_in_cents(coin: Coin) -> u32 {
Nov 28 12:38:32.977 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 12:38:32.977 INFO [stderr] 
Nov 28 12:38:33.016 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.30s
Nov 28 12:38:33.017 INFO [stderr] su: No module specific data is present
Nov 28 12:38:33.534 INFO running `"docker" "inspect" "21b5bd1d8bdbe464ac8d37cb231c4f23844b185c8be53cf9fdf9b3051365a31a"`
Nov 28 12:38:33.874 INFO running `"docker" "rm" "-f" "21b5bd1d8bdbe464ac8d37cb231c4f23844b185c8be53cf9fdf9b3051365a31a"`
Nov 28 12:38:34.248 INFO [stdout] 21b5bd1d8bdbe464ac8d37cb231c4f23844b185c8be53cf9fdf9b3051365a31a