[INFO] updating cached repository Kyledmw/rust-web-thing [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/Kyledmw/rust-web-thing [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/Kyledmw/rust-web-thing" "work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/Kyledmw/rust-web-thing"` [INFO] [stderr] Cloning into 'work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/Kyledmw/rust-web-thing'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/Kyledmw/rust-web-thing" "work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/gh/Kyledmw/rust-web-thing"` [INFO] [stderr] Cloning into 'work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/gh/Kyledmw/rust-web-thing'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 7fbfdac95ad57df9b3a4e5fa61237a10216cd458 [INFO] sha for GitHub repo Kyledmw/rust-web-thing: 7fbfdac95ad57df9b3a4e5fa61237a10216cd458 [INFO] validating manifest of Kyledmw/rust-web-thing on toolchain master#a850a426491e14186af2250549bf41256b5938d2 [INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+a850a426491e14186af2250549bf41256b5938d2-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of Kyledmw/rust-web-thing on toolchain try#06a150c7d11500b41499224f165e9de1de096768 [INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+06a150c7d11500b41499224f165e9de1de096768-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing Kyledmw/rust-web-thing [INFO] finished frobbing Kyledmw/rust-web-thing [INFO] frobbed toml for Kyledmw/rust-web-thing written to work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/Kyledmw/rust-web-thing/Cargo.toml [INFO] started frobbing Kyledmw/rust-web-thing [INFO] finished frobbing Kyledmw/rust-web-thing [INFO] frobbed toml for Kyledmw/rust-web-thing written to work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/gh/Kyledmw/rust-web-thing/Cargo.toml [INFO] crate Kyledmw/rust-web-thing already has a lockfile, it will not be regenerated [INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+a850a426491e14186af2250549bf41256b5938d2-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+06a150c7d11500b41499224f165e9de1de096768-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] checking Kyledmw/rust-web-thing against master#a850a426491e14186af2250549bf41256b5938d2 for pr-60162 [INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60162/worker-5/master#a850a426491e14186af2250549bf41256b5938d2:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/Kyledmw/rust-web-thing:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+a850a426491e14186af2250549bf41256b5938d2-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] 87fe5632e4f69610a5a24723740b84e8da7d18a06750acc6c84c74366229f750 [INFO] running `"docker" "start" "-a" "87fe5632e4f69610a5a24723740b84e8da7d18a06750acc6c84c74366229f750"` [INFO] [stderr] Checking rust-web-thing v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused variable: `word` [INFO] [stderr] --> src/main.rs:241:9 [INFO] [stderr] | [INFO] [stderr] 241 | let word = first_word(&s); [INFO] [stderr] | ^^^^ help: consider prefixing with an underscore: `_word` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `user3` [INFO] [stderr] --> src/main.rs:325:9 [INFO] [stderr] | [INFO] [stderr] 325 | let user3 = User { [INFO] [stderr] | ^^^^^ help: consider prefixing with an underscore: `_user3` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `user4` [INFO] [stderr] --> src/main.rs:334:9 [INFO] [stderr] | [INFO] [stderr] 334 | let user4 = User { [INFO] [stderr] | ^^^^^ help: consider prefixing with an underscore: `_user4` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `black` [INFO] [stderr] --> src/main.rs:365:9 [INFO] [stderr] | [INFO] [stderr] 365 | let black = Color(0, 0, 0); [INFO] [stderr] | ^^^^^ help: consider prefixing with an underscore: `_black` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `home` [INFO] [stderr] --> src/main.rs:435:9 [INFO] [stderr] | [INFO] [stderr] 435 | let home = IpAddrStruct { [INFO] [stderr] | ^^^^ help: consider prefixing with an underscore: `_home` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `loopback` [INFO] [stderr] --> src/main.rs:440:9 [INFO] [stderr] | [INFO] [stderr] 440 | let loopback = IpAddrStruct { [INFO] [stderr] | ^^^^^^^^ help: consider prefixing with an underscore: `_loopback` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `h` [INFO] [stderr] --> src/main.rs:445:9 [INFO] [stderr] | [INFO] [stderr] 445 | let h = IpAddrS::V4(String::from("127.0.0.1")); [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_h` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `lb` [INFO] [stderr] --> src/main.rs:446:9 [INFO] [stderr] | [INFO] [stderr] 446 | let lb = IpAddrS::V6(String::from("::1")); [INFO] [stderr] | ^^ help: consider prefixing with an underscore: `_lb` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `h2` [INFO] [stderr] --> src/main.rs:448:9 [INFO] [stderr] | [INFO] [stderr] 448 | let h2 = IpAddr::V4(127, 0, 0, 1); [INFO] [stderr] | ^^ help: consider prefixing with an underscore: `_h2` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `ip_type` [INFO] [stderr] --> src/main.rs:458:10 [INFO] [stderr] | [INFO] [stderr] 458 | fn route(ip_type: IpAddrKind) {} [INFO] [stderr] | ^^^^^^^ help: consider prefixing with an underscore: `_ip_type` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `some_number` [INFO] [stderr] --> src/main.rs:489:9 [INFO] [stderr] | [INFO] [stderr] 489 | let some_number = Some(5); [INFO] [stderr] | ^^^^^^^^^^^ help: consider prefixing with an underscore: `_some_number` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `some_string` [INFO] [stderr] --> src/main.rs:490:9 [INFO] [stderr] | [INFO] [stderr] 490 | let some_string = Some("a string"); [INFO] [stderr] | ^^^^^^^^^^^ help: consider prefixing with an underscore: `_some_string` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `absent_number` [INFO] [stderr] --> src/main.rs:492:9 [INFO] [stderr] | [INFO] [stderr] 492 | let absent_number: Option = None; [INFO] [stderr] | ^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_absent_number` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `sum` [INFO] [stderr] --> src/main.rs:499:9 [INFO] [stderr] | [INFO] [stderr] 499 | let sum = y.unwrap() + x; [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_sum` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `word` [INFO] [stderr] --> src/main.rs:241:9 [INFO] [stderr] | [INFO] [stderr] 241 | let word = first_word(&s); [INFO] [stderr] | ^^^^ help: consider prefixing with an underscore: `_word` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `user3` [INFO] [stderr] --> src/main.rs:325:9 [INFO] [stderr] | [INFO] [stderr] 325 | let user3 = User { [INFO] [stderr] | ^^^^^ help: consider prefixing with an underscore: `_user3` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `user4` [INFO] [stderr] --> src/main.rs:334:9 [INFO] [stderr] | [INFO] [stderr] 334 | let user4 = User { [INFO] [stderr] | ^^^^^ help: consider prefixing with an underscore: `_user4` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `black` [INFO] [stderr] --> src/main.rs:365:9 [INFO] [stderr] | [INFO] [stderr] 365 | let black = Color(0, 0, 0); [INFO] [stderr] | ^^^^^ help: consider prefixing with an underscore: `_black` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `home` [INFO] [stderr] --> src/main.rs:435:9 [INFO] [stderr] | [INFO] [stderr] 435 | let home = IpAddrStruct { [INFO] [stderr] | ^^^^ help: consider prefixing with an underscore: `_home` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `loopback` [INFO] [stderr] --> src/main.rs:440:9 [INFO] [stderr] | [INFO] [stderr] 440 | let loopback = IpAddrStruct { [INFO] [stderr] | ^^^^^^^^ help: consider prefixing with an underscore: `_loopback` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `h` [INFO] [stderr] --> src/main.rs:445:9 [INFO] [stderr] | [INFO] [stderr] 445 | let h = IpAddrS::V4(String::from("127.0.0.1")); [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_h` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `lb` [INFO] [stderr] --> src/main.rs:446:9 [INFO] [stderr] | [INFO] [stderr] 446 | let lb = IpAddrS::V6(String::from("::1")); [INFO] [stderr] | ^^ help: consider prefixing with an underscore: `_lb` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `h2` [INFO] [stderr] --> src/main.rs:448:9 [INFO] [stderr] | [INFO] [stderr] 448 | let h2 = IpAddr::V4(127, 0, 0, 1); [INFO] [stderr] | ^^ help: consider prefixing with an underscore: `_h2` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `ip_type` [INFO] [stderr] --> src/main.rs:458:10 [INFO] [stderr] | [INFO] [stderr] 458 | fn route(ip_type: IpAddrKind) {} [INFO] [stderr] | ^^^^^^^ help: consider prefixing with an underscore: `_ip_type` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `some_number` [INFO] [stderr] --> src/main.rs:489:9 [INFO] [stderr] | [INFO] [stderr] 489 | let some_number = Some(5); [INFO] [stderr] | ^^^^^^^^^^^ help: consider prefixing with an underscore: `_some_number` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `some_string` [INFO] [stderr] --> src/main.rs:490:9 [INFO] [stderr] | [INFO] [stderr] 490 | let some_string = Some("a string"); [INFO] [stderr] | ^^^^^^^^^^^ help: consider prefixing with an underscore: `_some_string` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `absent_number` [INFO] [stderr] --> src/main.rs:492:9 [INFO] [stderr] | [INFO] [stderr] 492 | let absent_number: Option = None; [INFO] [stderr] | ^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_absent_number` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `sum` [INFO] [stderr] --> src/main.rs:499:9 [INFO] [stderr] | [INFO] [stderr] 499 | let sum = y.unwrap() + x; [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_sum` [INFO] [stderr] [INFO] [stderr] warning: constant item is never used: `MAX_POINTS` [INFO] [stderr] --> src/main.rs:11:1 [INFO] [stderr] | [INFO] [stderr] 11 | const MAX_POINTS: u32 = 100_000; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `main_old` [INFO] [stderr] --> src/main.rs:14:1 [INFO] [stderr] | [INFO] [stderr] 14 | fn main_old() { [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `another_function` [INFO] [stderr] --> src/main.rs:79:1 [INFO] [stderr] | [INFO] [stderr] 79 | fn another_function(a0: i32, a1: i32, a2: i32) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `five` [INFO] [stderr] --> src/main.rs:85:1 [INFO] [stderr] | [INFO] [stderr] 85 | fn five() -> i32 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `plus_one` [INFO] [stderr] --> src/main.rs:89:1 [INFO] [stderr] | [INFO] [stderr] 89 | fn plus_one(x: i32) -> i32 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `flow_control` [INFO] [stderr] --> src/main.rs:93:1 [INFO] [stderr] | [INFO] [stderr] 93 | fn flow_control() { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `ownership` [INFO] [stderr] --> src/main.rs:146:1 [INFO] [stderr] | [INFO] [stderr] 146 | fn ownership() { [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `takes_ownership` [INFO] [stderr] --> src/main.rs:171:1 [INFO] [stderr] | [INFO] [stderr] 171 | fn takes_ownership(some_string: String) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `makes_copy` [INFO] [stderr] --> src/main.rs:176:1 [INFO] [stderr] | [INFO] [stderr] 176 | fn makes_copy(some_integer: i32) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `gives_ownership` [INFO] [stderr] --> src/main.rs:181:1 [INFO] [stderr] | [INFO] [stderr] 181 | fn gives_ownership() -> String { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `takes_and_gives_back` [INFO] [stderr] --> src/main.rs:186:1 [INFO] [stderr] | [INFO] [stderr] 186 | fn takes_and_gives_back(a_string: String) -> String { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `calculate_length` [INFO] [stderr] --> src/main.rs:190:1 [INFO] [stderr] | [INFO] [stderr] 190 | fn calculate_length(s: String) -> (String, usize) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `references` [INFO] [stderr] --> src/main.rs:197:1 [INFO] [stderr] | [INFO] [stderr] 197 | fn references() { [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `calculate_length_ref` [INFO] [stderr] --> src/main.rs:209:1 [INFO] [stderr] | [INFO] [stderr] 209 | fn calculate_length_ref(s: &String) -> usize { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `mut_references` [INFO] [stderr] --> src/main.rs:215:1 [INFO] [stderr] | [INFO] [stderr] 215 | fn mut_references() { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `change` [INFO] [stderr] --> src/main.rs:222:1 [INFO] [stderr] | [INFO] [stderr] 222 | fn change(some_string: &mut String) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `no_dangle` [INFO] [stderr] --> src/main.rs:227:1 [INFO] [stderr] | [INFO] [stderr] 227 | fn no_dangle() -> String { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `word_runner` [INFO] [stderr] --> src/main.rs:238:1 [INFO] [stderr] | [INFO] [stderr] 238 | fn word_runner() { [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `first_word` [INFO] [stderr] --> src/main.rs:264:1 [INFO] [stderr] | [INFO] [stderr] 264 | fn first_word(s: &String) -> usize { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `first_word_slice` [INFO] [stderr] --> src/main.rs:277:1 [INFO] [stderr] | [INFO] [stderr] 277 | fn first_word_slice(s: &String) -> &str { //string slice written as &str [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `first_word_improved` [INFO] [stderr] --> src/main.rs:288:1 [INFO] [stderr] | [INFO] [stderr] 288 | fn first_word_improved(s: &str) -> &str { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `User` [INFO] [stderr] --> src/main.rs:299:1 [INFO] [stderr] | [INFO] [stderr] 299 | struct User { [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `my_structs` [INFO] [stderr] --> src/main.rs:306:1 [INFO] [stderr] | [INFO] [stderr] 306 | fn my_structs() { [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `build_user` [INFO] [stderr] --> src/main.rs:343:1 [INFO] [stderr] | [INFO] [stderr] 343 | fn build_user(email: String, username: String) -> User { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `test_build_user` [INFO] [stderr] --> src/main.rs:353:1 [INFO] [stderr] | [INFO] [stderr] 353 | fn test_build_user() { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Color` [INFO] [stderr] --> src/main.rs:362:1 [INFO] [stderr] | [INFO] [stderr] 362 | struct Color(i32, i32, i32); // structs without named fields. [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `test_tuple_structs` [INFO] [stderr] --> src/main.rs:364:1 [INFO] [stderr] | [INFO] [stderr] 364 | fn test_tuple_structs() { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Rectangle` [INFO] [stderr] --> src/main.rs:369:1 [INFO] [stderr] | [INFO] [stderr] 369 | struct Rectangle { [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `area` [INFO] [stderr] --> src/main.rs:378:5 [INFO] [stderr] | [INFO] [stderr] 378 | fn area(&self) -> u32 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `square` [INFO] [stderr] --> src/main.rs:383:5 [INFO] [stderr] | [INFO] [stderr] 383 | fn square(size: u32) -> Rectangle { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `main_old2` [INFO] [stderr] --> src/main.rs:388:1 [INFO] [stderr] | [INFO] [stderr] 388 | fn main_old2() { [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `rectangle_examples` [INFO] [stderr] --> src/main.rs:392:1 [INFO] [stderr] | [INFO] [stderr] 392 | fn rectangle_examples() { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `testing_referencing` [INFO] [stderr] --> src/main.rs:407:1 [INFO] [stderr] | [INFO] [stderr] 407 | fn testing_referencing(rect: &Rectangle) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: enum is never used: `IpAddrKind` [INFO] [stderr] --> src/main.rs:411:1 [INFO] [stderr] | [INFO] [stderr] 411 | enum IpAddrKind { [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `IpAddrStruct` [INFO] [stderr] --> src/main.rs:416:1 [INFO] [stderr] | [INFO] [stderr] 416 | struct IpAddrStruct { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: enum is never used: `IpAddrS` [INFO] [stderr] --> src/main.rs:421:1 [INFO] [stderr] | [INFO] [stderr] 421 | enum IpAddrS { [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: enum is never used: `IpAddr` [INFO] [stderr] --> src/main.rs:426:1 [INFO] [stderr] | [INFO] [stderr] 426 | enum IpAddr { [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `main_old3` [INFO] [stderr] --> src/main.rs:431:1 [INFO] [stderr] | [INFO] [stderr] 431 | fn main_old3() { [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `route` [INFO] [stderr] --> src/main.rs:458:1 [INFO] [stderr] | [INFO] [stderr] 458 | fn route(ip_type: IpAddrKind) {} [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: enum is never used: `Message` [INFO] [stderr] --> src/main.rs:460:1 [INFO] [stderr] | [INFO] [stderr] 460 | enum Message { [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `QuitMessage` [INFO] [stderr] --> src/main.rs:467:1 [INFO] [stderr] | [INFO] [stderr] 467 | struct QuitMessage; // unit struct [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `MoveMessage` [INFO] [stderr] --> src/main.rs:468:1 [INFO] [stderr] | [INFO] [stderr] 468 | struct MoveMessage { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `WriteMessage` [INFO] [stderr] --> src/main.rs:473:1 [INFO] [stderr] | [INFO] [stderr] 473 | struct WriteMessage(String); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `ChangeColorMessage` [INFO] [stderr] --> src/main.rs:474:1 [INFO] [stderr] | [INFO] [stderr] 474 | struct ChangeColorMessage(i32, i32, i32); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `call` [INFO] [stderr] --> src/main.rs:477:5 [INFO] [stderr] | [INFO] [stderr] 477 | fn call(&self) { [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `enum_stuff` [INFO] [stderr] --> src/main.rs:482:1 [INFO] [stderr] | [INFO] [stderr] 482 | fn enum_stuff() { [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `optional_enum` [INFO] [stderr] --> src/main.rs:488:1 [INFO] [stderr] | [INFO] [stderr] 488 | fn optional_enum() { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: enum is never used: `UsState` [INFO] [stderr] --> src/main.rs:505:1 [INFO] [stderr] | [INFO] [stderr] 505 | enum UsState { [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: enum is never used: `Coin` [INFO] [stderr] --> src/main.rs:510:1 [INFO] [stderr] | [INFO] [stderr] 510 | enum Coin { [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `value_in_cents` [INFO] [stderr] --> src/main.rs:517:1 [INFO] [stderr] | [INFO] [stderr] 517 | fn value_in_cents(coin: Coin) -> u32 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: constant item is never used: `MAX_POINTS` [INFO] [stderr] --> src/main.rs:11:1 [INFO] [stderr] | [INFO] [stderr] 11 | const MAX_POINTS: u32 = 100_000; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `main_old` [INFO] [stderr] --> src/main.rs:14:1 [INFO] [stderr] | [INFO] [stderr] 14 | fn main_old() { [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `another_function` [INFO] [stderr] --> src/main.rs:79:1 [INFO] [stderr] | [INFO] [stderr] 79 | fn another_function(a0: i32, a1: i32, a2: i32) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `five` [INFO] [stderr] --> src/main.rs:85:1 [INFO] [stderr] | [INFO] [stderr] 85 | fn five() -> i32 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `plus_one` [INFO] [stderr] --> src/main.rs:89:1 [INFO] [stderr] | [INFO] [stderr] 89 | fn plus_one(x: i32) -> i32 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `flow_control` [INFO] [stderr] --> src/main.rs:93:1 [INFO] [stderr] | [INFO] [stderr] 93 | fn flow_control() { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `ownership` [INFO] [stderr] --> src/main.rs:146:1 [INFO] [stderr] | [INFO] [stderr] 146 | fn ownership() { [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `takes_ownership` [INFO] [stderr] --> src/main.rs:171:1 [INFO] [stderr] | [INFO] [stderr] 171 | fn takes_ownership(some_string: String) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `makes_copy` [INFO] [stderr] --> src/main.rs:176:1 [INFO] [stderr] | [INFO] [stderr] 176 | fn makes_copy(some_integer: i32) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `gives_ownership` [INFO] [stderr] --> src/main.rs:181:1 [INFO] [stderr] | [INFO] [stderr] 181 | fn gives_ownership() -> String { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `takes_and_gives_back` [INFO] [stderr] --> src/main.rs:186:1 [INFO] [stderr] | [INFO] [stderr] 186 | fn takes_and_gives_back(a_string: String) -> String { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `calculate_length` [INFO] [stderr] --> src/main.rs:190:1 [INFO] [stderr] | [INFO] [stderr] 190 | fn calculate_length(s: String) -> (String, usize) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `references` [INFO] [stderr] --> src/main.rs:197:1 [INFO] [stderr] | [INFO] [stderr] 197 | fn references() { [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `calculate_length_ref` [INFO] [stderr] --> src/main.rs:209:1 [INFO] [stderr] | [INFO] [stderr] 209 | fn calculate_length_ref(s: &String) -> usize { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `mut_references` [INFO] [stderr] --> src/main.rs:215:1 [INFO] [stderr] | [INFO] [stderr] 215 | fn mut_references() { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `change` [INFO] [stderr] --> src/main.rs:222:1 [INFO] [stderr] | [INFO] [stderr] 222 | fn change(some_string: &mut String) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `no_dangle` [INFO] [stderr] --> src/main.rs:227:1 [INFO] [stderr] | [INFO] [stderr] 227 | fn no_dangle() -> String { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `word_runner` [INFO] [stderr] --> src/main.rs:238:1 [INFO] [stderr] | [INFO] [stderr] 238 | fn word_runner() { [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `first_word` [INFO] [stderr] --> src/main.rs:264:1 [INFO] [stderr] | [INFO] [stderr] 264 | fn first_word(s: &String) -> usize { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `first_word_slice` [INFO] [stderr] --> src/main.rs:277:1 [INFO] [stderr] | [INFO] [stderr] 277 | fn first_word_slice(s: &String) -> &str { //string slice written as &str [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `first_word_improved` [INFO] [stderr] --> src/main.rs:288:1 [INFO] [stderr] | [INFO] [stderr] 288 | fn first_word_improved(s: &str) -> &str { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `User` [INFO] [stderr] --> src/main.rs:299:1 [INFO] [stderr] | [INFO] [stderr] 299 | struct User { [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `my_structs` [INFO] [stderr] --> src/main.rs:306:1 [INFO] [stderr] | [INFO] [stderr] 306 | fn my_structs() { [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `build_user` [INFO] [stderr] --> src/main.rs:343:1 [INFO] [stderr] | [INFO] [stderr] 343 | fn build_user(email: String, username: String) -> User { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `test_build_user` [INFO] [stderr] --> src/main.rs:353:1 [INFO] [stderr] | [INFO] [stderr] 353 | fn test_build_user() { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Color` [INFO] [stderr] --> src/main.rs:362:1 [INFO] [stderr] | [INFO] [stderr] 362 | struct Color(i32, i32, i32); // structs without named fields. [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `test_tuple_structs` [INFO] [stderr] --> src/main.rs:364:1 [INFO] [stderr] | [INFO] [stderr] 364 | fn test_tuple_structs() { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Rectangle` [INFO] [stderr] --> src/main.rs:369:1 [INFO] [stderr] | [INFO] [stderr] 369 | struct Rectangle { [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `area` [INFO] [stderr] --> src/main.rs:378:5 [INFO] [stderr] | [INFO] [stderr] 378 | fn area(&self) -> u32 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `square` [INFO] [stderr] --> src/main.rs:383:5 [INFO] [stderr] | [INFO] [stderr] 383 | fn square(size: u32) -> Rectangle { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `main_old2` [INFO] [stderr] --> src/main.rs:388:1 [INFO] [stderr] | [INFO] [stderr] 388 | fn main_old2() { [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `rectangle_examples` [INFO] [stderr] --> src/main.rs:392:1 [INFO] [stderr] | [INFO] [stderr] 392 | fn rectangle_examples() { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `testing_referencing` [INFO] [stderr] --> src/main.rs:407:1 [INFO] [stderr] | [INFO] [stderr] 407 | fn testing_referencing(rect: &Rectangle) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: enum is never used: `IpAddrKind` [INFO] [stderr] --> src/main.rs:411:1 [INFO] [stderr] | [INFO] [stderr] 411 | enum IpAddrKind { [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `IpAddrStruct` [INFO] [stderr] --> src/main.rs:416:1 [INFO] [stderr] | [INFO] [stderr] 416 | struct IpAddrStruct { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: enum is never used: `IpAddrS` [INFO] [stderr] --> src/main.rs:421:1 [INFO] [stderr] | [INFO] [stderr] 421 | enum IpAddrS { [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: enum is never used: `IpAddr` [INFO] [stderr] --> src/main.rs:426:1 [INFO] [stderr] | [INFO] [stderr] 426 | enum IpAddr { [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `main_old3` [INFO] [stderr] --> src/main.rs:431:1 [INFO] [stderr] | [INFO] [stderr] 431 | fn main_old3() { [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `route` [INFO] [stderr] --> src/main.rs:458:1 [INFO] [stderr] | [INFO] [stderr] 458 | fn route(ip_type: IpAddrKind) {} [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: enum is never used: `Message` [INFO] [stderr] --> src/main.rs:460:1 [INFO] [stderr] | [INFO] [stderr] 460 | enum Message { [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `QuitMessage` [INFO] [stderr] --> src/main.rs:467:1 [INFO] [stderr] | [INFO] [stderr] 467 | struct QuitMessage; // unit struct [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `MoveMessage` [INFO] [stderr] --> src/main.rs:468:1 [INFO] [stderr] | [INFO] [stderr] 468 | struct MoveMessage { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `WriteMessage` [INFO] [stderr] --> src/main.rs:473:1 [INFO] [stderr] | [INFO] [stderr] 473 | struct WriteMessage(String); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `ChangeColorMessage` [INFO] [stderr] --> src/main.rs:474:1 [INFO] [stderr] | [INFO] [stderr] 474 | struct ChangeColorMessage(i32, i32, i32); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `call` [INFO] [stderr] --> src/main.rs:477:5 [INFO] [stderr] | [INFO] [stderr] 477 | fn call(&self) { [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `enum_stuff` [INFO] [stderr] --> src/main.rs:482:1 [INFO] [stderr] | [INFO] [stderr] 482 | fn enum_stuff() { [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `optional_enum` [INFO] [stderr] --> src/main.rs:488:1 [INFO] [stderr] | [INFO] [stderr] 488 | fn optional_enum() { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: enum is never used: `UsState` [INFO] [stderr] --> src/main.rs:505:1 [INFO] [stderr] | [INFO] [stderr] 505 | enum UsState { [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: enum is never used: `Coin` [INFO] [stderr] --> src/main.rs:510:1 [INFO] [stderr] | [INFO] [stderr] 510 | enum Coin { [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `value_in_cents` [INFO] [stderr] --> src/main.rs:517:1 [INFO] [stderr] | [INFO] [stderr] 517 | fn value_in_cents(coin: Coin) -> u32 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.19s [INFO] running `"docker" "inspect" "87fe5632e4f69610a5a24723740b84e8da7d18a06750acc6c84c74366229f750"` [INFO] running `"docker" "rm" "-f" "87fe5632e4f69610a5a24723740b84e8da7d18a06750acc6c84c74366229f750"` [INFO] [stdout] 87fe5632e4f69610a5a24723740b84e8da7d18a06750acc6c84c74366229f750