[INFO] cloning repository https://github.com/Medsko/study-crate [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Medsko/study-crate" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMedsko%2Fstudy-crate", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMedsko%2Fstudy-crate'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] a11285a06e1b2a2e0b07f581d6e672072c061222 [INFO] testing Medsko/study-crate against beta-2026-01-20 for beta-1.94-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMedsko%2Fstudy-crate" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/Medsko/study-crate [INFO] finished tweaking git repo https://github.com/Medsko/study-crate [INFO] tweaked toml for git repo https://github.com/Medsko/study-crate written to /workspace/builds/worker-2-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/Medsko/study-crate on toolchain beta-2026-01-20 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-01-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/Medsko/study-crate already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-01-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] warning: unused manifest key: package.licence [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded libc v0.2.74 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] c7ddec22c2542f2f8e42bd5e9c2c62f9242fc71b7f15248f6d66506b77061cb4 [INFO] running `Command { std: "docker" "start" "-a" "c7ddec22c2542f2f8e42bd5e9c2c62f9242fc71b7f15248f6d66506b77061cb4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "c7ddec22c2542f2f8e42bd5e9c2c62f9242fc71b7f15248f6d66506b77061cb4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c7ddec22c2542f2f8e42bd5e9c2c62f9242fc71b7f15248f6d66506b77061cb4", kill_on_drop: false }` [INFO] [stdout] c7ddec22c2542f2f8e42bd5e9c2c62f9242fc71b7f15248f6d66506b77061cb4 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 799a79a8c932b1edb9e908b5edeb68916ee50c4693397684626f4626a9f88e3a [INFO] running `Command { std: "docker" "start" "-a" "799a79a8c932b1edb9e908b5edeb68916ee50c4693397684626f4626a9f88e3a", kill_on_drop: false }` [INFO] [stderr] warning: unused manifest key: package.licence [INFO] [stderr] Compiling libc v0.2.74 [INFO] [stderr] Compiling getrandom v0.1.14 [INFO] [stderr] Compiling ppv-lite86 v0.2.8 [INFO] [stderr] Compiling rand_core v0.5.1 [INFO] [stderr] Compiling rand_chacha v0.2.2 [INFO] [stderr] Compiling rand v0.7.3 [INFO] [stderr] Compiling study-crate v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: function `exercise` is never used [INFO] [stdout] --> src/collections/exercises.rs:7:8 [INFO] [stdout] | [INFO] [stdout] 7 | pub fn exercise() { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `employee_registration` is never used [INFO] [stdout] --> src/collections/exercises.rs:35:8 [INFO] [stdout] | [INFO] [stdout] 35 | pub fn employee_registration() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `remove_employee` is never used [INFO] [stdout] --> src/collections/exercises.rs:70:4 [INFO] [stdout] | [INFO] [stdout] 70 | fn remove_employee(register: &mut HashMap>, other_words: &mut SplitWhitespace) { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `extract_full_name` is never used [INFO] [stdout] --> src/collections/exercises.rs:90:4 [INFO] [stdout] | [INFO] [stdout] 90 | fn extract_full_name(words: &mut SplitWhitespace, stop: &str) -> Result { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `register_employee` is never used [INFO] [stdout] --> src/collections/exercises.rs:108:4 [INFO] [stdout] | [INFO] [stdout] 108 | fn register_employee(register: &mut HashMap>, other_words: &mut SplitWhitespace) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `print_register` is never used [INFO] [stdout] --> src/collections/exercises.rs:119:4 [INFO] [stdout] | [INFO] [stdout] 119 | fn print_register(register: &HashMap>) { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `hash_it_up` is never used [INFO] [stdout] --> src/collections/hashmaps.rs:3:8 [INFO] [stdout] | [INFO] [stdout] 3 | pub fn hash_it_up() { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `string_stuff` is never used [INFO] [stdout] --> src/collections/strings.rs:2:8 [INFO] [stdout] | [INFO] [stdout] 2 | pub fn string_stuff() { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `got_game` is never used [INFO] [stdout] --> src/collections/strings.rs:22:4 [INFO] [stdout] | [INFO] [stdout] 22 | fn got_game() -> String { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `to_pig_latin` is never used [INFO] [stdout] --> src/collections/strings.rs:33:8 [INFO] [stdout] | [INFO] [stdout] 33 | pub fn to_pig_latin(kosher: &String) -> String { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `is_vowel` is never used [INFO] [stdout] --> src/collections/strings.rs:53:4 [INFO] [stdout] | [INFO] [stdout] 53 | fn is_vowel(maybe_vowel: &char) -> bool { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Guess` is never constructed [INFO] [stdout] --> src/prepackages/gg.rs:6:8 [INFO] [stdout] | [INFO] [stdout] 6 | struct Guess { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new` and `value` are never used [INFO] [stdout] --> src/prepackages/gg.rs:11:12 [INFO] [stdout] | [INFO] [stdout] 10 | impl Guess { [INFO] [stdout] | ---------- associated items in this implementation [INFO] [stdout] 11 | pub fn new(value: i32) -> Guess { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 19 | pub fn value(&self) -> i32 { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `play_the_guessing_game` is never used [INFO] [stdout] --> src/prepackages/gg.rs:24:8 [INFO] [stdout] | [INFO] [stdout] 24 | pub fn play_the_guessing_game() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `own` is never used [INFO] [stdout] --> src/prepackages/ownership.rs:2:8 [INFO] [stdout] | [INFO] [stdout] 2 | pub fn own() { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `takes_ownership` is never used [INFO] [stdout] --> src/prepackages/ownership.rs:47:4 [INFO] [stdout] | [INFO] [stdout] 47 | fn takes_ownership(val: String) { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `makes_copy` is never used [INFO] [stdout] --> src/prepackages/ownership.rs:51:4 [INFO] [stdout] | [INFO] [stdout] 51 | fn makes_copy(number: i32) { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `references_and_borrowing` is never used [INFO] [stdout] --> src/prepackages/ownership.rs:56:4 [INFO] [stdout] | [INFO] [stdout] 56 | fn references_and_borrowing() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `calculate_length` is never used [INFO] [stdout] --> src/prepackages/ownership.rs:87:4 [INFO] [stdout] | [INFO] [stdout] 87 | fn calculate_length(s: &String) -> usize { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `string_to_length` is never used [INFO] [stdout] --> src/prepackages/ownership.rs:91:4 [INFO] [stdout] | [INFO] [stdout] 91 | fn string_to_length(s: String) -> usize { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `print_length` is never used [INFO] [stdout] --> src/prepackages/ownership.rs:95:4 [INFO] [stdout] | [INFO] [stdout] 95 | fn print_length(s: &String) { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `legalized_modification` is never used [INFO] [stdout] --> src/prepackages/ownership.rs:103:4 [INFO] [stdout] | [INFO] [stdout] 103 | fn legalized_modification(s: &mut String) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `slice_stuff` is never used [INFO] [stdout] --> src/prepackages/ownership.rs:108:4 [INFO] [stdout] | [INFO] [stdout] 108 | fn slice_stuff() { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `slice_first_word` is never used [INFO] [stdout] --> src/prepackages/ownership.rs:124:4 [INFO] [stdout] | [INFO] [stdout] 124 | fn slice_first_word(s: &String) -> &str { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `first_word` is never used [INFO] [stdout] --> src/prepackages/ownership.rs:140:4 [INFO] [stdout] | [INFO] [stdout] 140 | fn first_word(s: &String) -> usize { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `User` is never constructed [INFO] [stdout] --> src/prepackages/structs.rs:2:8 [INFO] [stdout] | [INFO] [stdout] 2 | struct User { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Color` is never constructed [INFO] [stdout] --> src/prepackages/structs.rs:9:8 [INFO] [stdout] | [INFO] [stdout] 9 | struct Color(i32, i32, i32); [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Point` is never constructed [INFO] [stdout] --> src/prepackages/structs.rs:10:8 [INFO] [stdout] | [INFO] [stdout] 10 | struct Point(i32, i32, i32); [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `structure` is never used [INFO] [stdout] --> src/prepackages/structs.rs:12:8 [INFO] [stdout] | [INFO] [stdout] 12 | pub fn structure() { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `first_structs` is never used [INFO] [stdout] --> src/prepackages/structs.rs:19:4 [INFO] [stdout] | [INFO] [stdout] 19 | fn first_structs() { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `build_user` is never used [INFO] [stdout] --> src/prepackages/structs.rs:39:4 [INFO] [stdout] | [INFO] [stdout] 39 | fn build_user(email: String, username1: String) -> User { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Rectangle` is never constructed [INFO] [stdout] --> src/prepackages/structs.rs:49:8 [INFO] [stdout] | [INFO] [stdout] 49 | struct Rectangle { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Circle` is never constructed [INFO] [stdout] --> src/prepackages/structs.rs:55:8 [INFO] [stdout] | [INFO] [stdout] 55 | struct Circle { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: multiple associated items are never used [INFO] [stdout] --> src/prepackages/structs.rs:61:8 [INFO] [stdout] | [INFO] [stdout] 59 | impl Rectangle { [INFO] [stdout] | -------------- associated items in this implementation [INFO] [stdout] 60 | [INFO] [stdout] 61 | fn area(&self) -> u32 { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 65 | fn longest_side(&self) -> u32 { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 72 | fn is_square(&self) -> bool { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 77 | fn transform_to_circle(self) -> Circle { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 81 | fn can_hold(&self, other: &Rectangle) -> bool { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 85 | fn stretch(&mut self, add_height: u32, add_width: u32) { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 91 | fn square(size: u32) -> Rectangle { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `shrink` is never used [INFO] [stdout] --> src/prepackages/structs.rs:101:8 [INFO] [stdout] | [INFO] [stdout] 100 | impl Rectangle { [INFO] [stdout] | -------------- method in this implementation [INFO] [stdout] 101 | fn shrink(&mut self, take_height: u32, take_width: u32) { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `rectangles` is never used [INFO] [stdout] --> src/prepackages/structs.rs:107:4 [INFO] [stdout] | [INFO] [stdout] 107 | fn rectangles() { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `area` is never used [INFO] [stdout] --> src/prepackages/structs.rs:131:4 [INFO] [stdout] | [INFO] [stdout] 131 | fn area(rectangle: &Rectangle) -> u32 { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `variate` is never used [INFO] [stdout] --> src/prepackages/variables.rs:2:8 [INFO] [stdout] | [INFO] [stdout] 2 | pub fn variate() { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `function_stuff` is never used [INFO] [stdout] --> src/prepackages/variables.rs:44:4 [INFO] [stdout] | [INFO] [stdout] 44 | fn function_stuff() -> i32 { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `returns_one` is never used [INFO] [stdout] --> src/prepackages/variables.rs:56:4 [INFO] [stdout] | [INFO] [stdout] 56 | fn returns_one() -> i32 { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `fizz_buzz` is never used [INFO] [stdout] --> src/prepackages/variables.rs:60:4 [INFO] [stdout] | [INFO] [stdout] 60 | fn fizz_buzz(x: i32) { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `loop_return` is never used [INFO] [stdout] --> src/prepackages/variables.rs:71:4 [INFO] [stdout] | [INFO] [stdout] 71 | fn loop_return(x: i32) -> i32 { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `countdown` is never used [INFO] [stdout] --> src/prepackages/variables.rs:81:4 [INFO] [stdout] | [INFO] [stdout] 81 | fn countdown(loops: i32) { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `for_loop` is never used [INFO] [stdout] --> src/prepackages/variables.rs:90:4 [INFO] [stdout] | [INFO] [stdout] 90 | fn for_loop(placement: i32) { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `range_for_loop` is never used [INFO] [stdout] --> src/prepackages/variables.rs:98:4 [INFO] [stdout] | [INFO] [stdout] 98 | fn range_for_loop(until: i32) { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `reverse_range_for_loop` is never used [INFO] [stdout] --> src/prepackages/variables.rs:104:4 [INFO] [stdout] | [INFO] [stdout] 104 | fn reverse_range_for_loop(from: i32) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `IpAddrKind` is never used [INFO] [stdout] --> src/prepackages/enums/enums.rs:5:6 [INFO] [stdout] | [INFO] [stdout] 5 | enum IpAddrKind { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `ConciseIpAddr` is never used [INFO] [stdout] --> src/prepackages/enums/enums.rs:10:6 [INFO] [stdout] | [INFO] [stdout] 10 | enum ConciseIpAddr { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `call` is never used [INFO] [stdout] --> src/prepackages/enums/enums.rs:25:8 [INFO] [stdout] | [INFO] [stdout] 24 | impl Message { [INFO] [stdout] | ------------ method in this implementation [INFO] [stdout] 25 | fn call(&self) { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `IpAddr` is never constructed [INFO] [stdout] --> src/prepackages/enums/enums.rs:37:8 [INFO] [stdout] | [INFO] [stdout] 37 | struct IpAddr { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `enumerate` is never used [INFO] [stdout] --> src/prepackages/enums/enums.rs:42:8 [INFO] [stdout] | [INFO] [stdout] 42 | pub fn enumerate() { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `UsState` is never used [INFO] [stdout] --> src/prepackages/enums/matching.rs:3:6 [INFO] [stdout] | [INFO] [stdout] 3 | enum UsState { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `Coin` is never used [INFO] [stdout] --> src/prepackages/enums/matching.rs:9:6 [INFO] [stdout] | [INFO] [stdout] 9 | enum Coin { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `value_in_cents` is never used [INFO] [stdout] --> src/prepackages/enums/matching.rs:17:8 [INFO] [stdout] | [INFO] [stdout] 16 | impl Coin { [INFO] [stdout] | --------- method in this implementation [INFO] [stdout] 17 | fn value_in_cents(&self) -> u8 { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `match_stuff` is never used [INFO] [stdout] --> src/prepackages/enums/matching.rs:33:8 [INFO] [stdout] | [INFO] [stdout] 33 | pub fn match_stuff() { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `find_someone` is never used [INFO] [stdout] --> src/prepackages/enums/matching.rs:41:4 [INFO] [stdout] | [INFO] [stdout] 41 | fn find_someone(optionals: &[Option]) { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `plus_one` is never used [INFO] [stdout] --> src/prepackages/enums/matching.rs:49:4 [INFO] [stdout] | [INFO] [stdout] 49 | fn plus_one(x: Option) -> Option { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `options` is never used [INFO] [stdout] --> src/prepackages/enums/options.rs:2:8 [INFO] [stdout] | [INFO] [stdout] 2 | pub fn options() { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing [INFO] [stdout] --> src/lib.rs:42:21 [INFO] [stdout] | [INFO] [stdout] 42 | let copy = i.clone(); [INFO] [stdout] | ^^^^^^^^ help: remove this redundant call [INFO] [stdout] | [INFO] [stdout] = note: the type `T` does not implement `Clone`, so calling `clone` on `&T` copies the reference, which does not do anything and can be removed [INFO] [stdout] = note: `#[warn(noop_method_call)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.71s [INFO] running `Command { std: "docker" "inspect" "799a79a8c932b1edb9e908b5edeb68916ee50c4693397684626f4626a9f88e3a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "799a79a8c932b1edb9e908b5edeb68916ee50c4693397684626f4626a9f88e3a", kill_on_drop: false }` [INFO] [stdout] 799a79a8c932b1edb9e908b5edeb68916ee50c4693397684626f4626a9f88e3a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 6a9ca292ea9eecd5e8ae53737b0a37c994c9e550177ab7705d360bdae350d48a [INFO] running `Command { std: "docker" "start" "-a" "6a9ca292ea9eecd5e8ae53737b0a37c994c9e550177ab7705d360bdae350d48a", kill_on_drop: false }` [INFO] [stderr] warning: unused manifest key: package.licence [INFO] [stdout] warning: function `exercise` is never used [INFO] [stdout] --> src/collections/exercises.rs:7:8 [INFO] [stdout] | [INFO] [stdout] 7 | pub fn exercise() { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `employee_registration` is never used [INFO] [stdout] --> src/collections/exercises.rs:35:8 [INFO] [stdout] | [INFO] [stdout] 35 | pub fn employee_registration() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `remove_employee` is never used [INFO] [stdout] --> src/collections/exercises.rs:70:4 [INFO] [stdout] | [INFO] [stdout] 70 | fn remove_employee(register: &mut HashMap>, other_words: &mut SplitWhitespace) { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `extract_full_name` is never used [INFO] [stdout] --> src/collections/exercises.rs:90:4 [INFO] [stdout] | [INFO] [stdout] 90 | fn extract_full_name(words: &mut SplitWhitespace, stop: &str) -> Result { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `register_employee` is never used [INFO] [stdout] --> src/collections/exercises.rs:108:4 [INFO] [stdout] | [INFO] [stdout] 108 | fn register_employee(register: &mut HashMap>, other_words: &mut SplitWhitespace) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `print_register` is never used [INFO] [stdout] --> src/collections/exercises.rs:119:4 [INFO] [stdout] | [INFO] [stdout] 119 | fn print_register(register: &HashMap>) { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `hash_it_up` is never used [INFO] [stdout] --> src/collections/hashmaps.rs:3:8 [INFO] [stdout] | [INFO] [stdout] 3 | pub fn hash_it_up() { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `string_stuff` is never used [INFO] [stdout] --> src/collections/strings.rs:2:8 [INFO] [stdout] | [INFO] [stdout] 2 | pub fn string_stuff() { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `got_game` is never used [INFO] [stdout] --> src/collections/strings.rs:22:4 [INFO] [stdout] | [INFO] [stdout] 22 | fn got_game() -> String { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `to_pig_latin` is never used [INFO] [stdout] --> src/collections/strings.rs:33:8 [INFO] [stdout] | [INFO] [stdout] 33 | pub fn to_pig_latin(kosher: &String) -> String { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `is_vowel` is never used [INFO] [stdout] --> src/collections/strings.rs:53:4 [INFO] [stdout] | [INFO] [stdout] 53 | fn is_vowel(maybe_vowel: &char) -> bool { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Guess` is never constructed [INFO] [stdout] --> src/prepackages/gg.rs:6:8 [INFO] [stdout] | [INFO] [stdout] 6 | struct Guess { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new` and `value` are never used [INFO] [stdout] --> src/prepackages/gg.rs:11:12 [INFO] [stdout] | [INFO] [stdout] 10 | impl Guess { [INFO] [stdout] | ---------- associated items in this implementation [INFO] [stdout] 11 | pub fn new(value: i32) -> Guess { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 19 | pub fn value(&self) -> i32 { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `play_the_guessing_game` is never used [INFO] [stdout] --> src/prepackages/gg.rs:24:8 [INFO] [stdout] | [INFO] [stdout] 24 | pub fn play_the_guessing_game() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `own` is never used [INFO] [stdout] --> src/prepackages/ownership.rs:2:8 [INFO] [stdout] | [INFO] [stdout] 2 | pub fn own() { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `takes_ownership` is never used [INFO] [stdout] --> src/prepackages/ownership.rs:47:4 [INFO] [stdout] | [INFO] [stdout] 47 | fn takes_ownership(val: String) { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `makes_copy` is never used [INFO] [stdout] --> src/prepackages/ownership.rs:51:4 [INFO] [stdout] | [INFO] [stdout] 51 | fn makes_copy(number: i32) { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `references_and_borrowing` is never used [INFO] [stdout] --> src/prepackages/ownership.rs:56:4 [INFO] [stdout] | [INFO] [stdout] 56 | fn references_and_borrowing() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `calculate_length` is never used [INFO] [stdout] --> src/prepackages/ownership.rs:87:4 [INFO] [stdout] | [INFO] [stdout] 87 | fn calculate_length(s: &String) -> usize { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `string_to_length` is never used [INFO] [stdout] --> src/prepackages/ownership.rs:91:4 [INFO] [stdout] | [INFO] [stdout] 91 | fn string_to_length(s: String) -> usize { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `print_length` is never used [INFO] [stdout] --> src/prepackages/ownership.rs:95:4 [INFO] [stdout] | [INFO] [stdout] 95 | fn print_length(s: &String) { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `legalized_modification` is never used [INFO] [stdout] --> src/prepackages/ownership.rs:103:4 [INFO] [stdout] | [INFO] [stdout] 103 | fn legalized_modification(s: &mut String) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `slice_stuff` is never used [INFO] [stdout] --> src/prepackages/ownership.rs:108:4 [INFO] [stdout] | [INFO] [stdout] 108 | fn slice_stuff() { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `slice_first_word` is never used [INFO] [stdout] --> src/prepackages/ownership.rs:124:4 [INFO] [stdout] | [INFO] [stdout] 124 | fn slice_first_word(s: &String) -> &str { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `first_word` is never used [INFO] [stdout] --> src/prepackages/ownership.rs:140:4 [INFO] [stdout] | [INFO] [stdout] 140 | fn first_word(s: &String) -> usize { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `User` is never constructed [INFO] [stdout] --> src/prepackages/structs.rs:2:8 [INFO] [stdout] | [INFO] [stdout] 2 | struct User { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Color` is never constructed [INFO] [stdout] --> src/prepackages/structs.rs:9:8 [INFO] [stdout] | [INFO] [stdout] 9 | struct Color(i32, i32, i32); [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Point` is never constructed [INFO] [stdout] --> src/prepackages/structs.rs:10:8 [INFO] [stdout] | [INFO] [stdout] 10 | struct Point(i32, i32, i32); [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `structure` is never used [INFO] [stdout] --> src/prepackages/structs.rs:12:8 [INFO] [stdout] | [INFO] [stdout] 12 | pub fn structure() { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `first_structs` is never used [INFO] [stdout] --> src/prepackages/structs.rs:19:4 [INFO] [stdout] | [INFO] [stdout] 19 | fn first_structs() { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `build_user` is never used [INFO] [stdout] --> src/prepackages/structs.rs:39:4 [INFO] [stdout] | [INFO] [stdout] 39 | fn build_user(email: String, username1: String) -> User { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Rectangle` is never constructed [INFO] [stdout] --> src/prepackages/structs.rs:49:8 [INFO] [stdout] | [INFO] [stdout] 49 | struct Rectangle { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Circle` is never constructed [INFO] [stdout] --> src/prepackages/structs.rs:55:8 [INFO] [stdout] | [INFO] [stdout] 55 | struct Circle { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: multiple associated items are never used [INFO] [stdout] --> src/prepackages/structs.rs:61:8 [INFO] [stdout] | [INFO] [stdout] 59 | impl Rectangle { [INFO] [stdout] | -------------- associated items in this implementation [INFO] [stdout] 60 | [INFO] [stdout] 61 | fn area(&self) -> u32 { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 65 | fn longest_side(&self) -> u32 { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 72 | fn is_square(&self) -> bool { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 77 | fn transform_to_circle(self) -> Circle { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 81 | fn can_hold(&self, other: &Rectangle) -> bool { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 85 | fn stretch(&mut self, add_height: u32, add_width: u32) { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 91 | fn square(size: u32) -> Rectangle { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `shrink` is never used [INFO] [stdout] --> src/prepackages/structs.rs:101:8 [INFO] [stdout] | [INFO] [stdout] 100 | impl Rectangle { [INFO] [stdout] | -------------- method in this implementation [INFO] [stdout] 101 | fn shrink(&mut self, take_height: u32, take_width: u32) { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `rectangles` is never used [INFO] [stdout] --> src/prepackages/structs.rs:107:4 [INFO] [stdout] | [INFO] [stdout] 107 | fn rectangles() { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `area` is never used [INFO] [stdout] --> src/prepackages/structs.rs:131:4 [INFO] [stdout] | [INFO] [stdout] 131 | fn area(rectangle: &Rectangle) -> u32 { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `variate` is never used [INFO] [stdout] --> src/prepackages/variables.rs:2:8 [INFO] [stdout] | [INFO] [stdout] 2 | pub fn variate() { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `function_stuff` is never used [INFO] [stdout] --> src/prepackages/variables.rs:44:4 [INFO] [stdout] | [INFO] [stdout] 44 | fn function_stuff() -> i32 { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling study-crate v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: function `returns_one` is never used [INFO] [stdout] --> src/prepackages/variables.rs:56:4 [INFO] [stdout] | [INFO] [stdout] 56 | fn returns_one() -> i32 { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `fizz_buzz` is never used [INFO] [stdout] --> src/prepackages/variables.rs:60:4 [INFO] [stdout] | [INFO] [stdout] 60 | fn fizz_buzz(x: i32) { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `loop_return` is never used [INFO] [stdout] --> src/prepackages/variables.rs:71:4 [INFO] [stdout] | [INFO] [stdout] 71 | fn loop_return(x: i32) -> i32 { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `countdown` is never used [INFO] [stdout] --> src/prepackages/variables.rs:81:4 [INFO] [stdout] | [INFO] [stdout] 81 | fn countdown(loops: i32) { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `for_loop` is never used [INFO] [stdout] --> src/prepackages/variables.rs:90:4 [INFO] [stdout] | [INFO] [stdout] 90 | fn for_loop(placement: i32) { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `range_for_loop` is never used [INFO] [stdout] --> src/prepackages/variables.rs:98:4 [INFO] [stdout] | [INFO] [stdout] 98 | fn range_for_loop(until: i32) { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `reverse_range_for_loop` is never used [INFO] [stdout] --> src/prepackages/variables.rs:104:4 [INFO] [stdout] | [INFO] [stdout] 104 | fn reverse_range_for_loop(from: i32) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `IpAddrKind` is never used [INFO] [stdout] --> src/prepackages/enums/enums.rs:5:6 [INFO] [stdout] | [INFO] [stdout] 5 | enum IpAddrKind { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `ConciseIpAddr` is never used [INFO] [stdout] --> src/prepackages/enums/enums.rs:10:6 [INFO] [stdout] | [INFO] [stdout] 10 | enum ConciseIpAddr { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `call` is never used [INFO] [stdout] --> src/prepackages/enums/enums.rs:25:8 [INFO] [stdout] | [INFO] [stdout] 24 | impl Message { [INFO] [stdout] | ------------ method in this implementation [INFO] [stdout] 25 | fn call(&self) { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `IpAddr` is never constructed [INFO] [stdout] --> src/prepackages/enums/enums.rs:37:8 [INFO] [stdout] | [INFO] [stdout] 37 | struct IpAddr { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `enumerate` is never used [INFO] [stdout] --> src/prepackages/enums/enums.rs:42:8 [INFO] [stdout] | [INFO] [stdout] 42 | pub fn enumerate() { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `UsState` is never used [INFO] [stdout] --> src/prepackages/enums/matching.rs:3:6 [INFO] [stdout] | [INFO] [stdout] 3 | enum UsState { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `Coin` is never used [INFO] [stdout] --> src/prepackages/enums/matching.rs:9:6 [INFO] [stdout] | [INFO] [stdout] 9 | enum Coin { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `value_in_cents` is never used [INFO] [stdout] --> src/prepackages/enums/matching.rs:17:8 [INFO] [stdout] | [INFO] [stdout] 16 | impl Coin { [INFO] [stdout] | --------- method in this implementation [INFO] [stdout] 17 | fn value_in_cents(&self) -> u8 { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `match_stuff` is never used [INFO] [stdout] --> src/prepackages/enums/matching.rs:33:8 [INFO] [stdout] | [INFO] [stdout] 33 | pub fn match_stuff() { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `find_someone` is never used [INFO] [stdout] --> src/prepackages/enums/matching.rs:41:4 [INFO] [stdout] | [INFO] [stdout] 41 | fn find_someone(optionals: &[Option]) { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `plus_one` is never used [INFO] [stdout] --> src/prepackages/enums/matching.rs:49:4 [INFO] [stdout] | [INFO] [stdout] 49 | fn plus_one(x: Option) -> Option { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `options` is never used [INFO] [stdout] --> src/prepackages/enums/options.rs:2:8 [INFO] [stdout] | [INFO] [stdout] 2 | pub fn options() { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing [INFO] [stdout] --> src/lib.rs:42:21 [INFO] [stdout] | [INFO] [stdout] 42 | let copy = i.clone(); [INFO] [stdout] | ^^^^^^^^ help: remove this redundant call [INFO] [stdout] | [INFO] [stdout] = note: the type `T` does not implement `Clone`, so calling `clone` on `&T` copies the reference, which does not do anything and can be removed [INFO] [stdout] = note: `#[warn(noop_method_call)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `exercise` is never used [INFO] [stdout] --> src/collections/exercises.rs:7:8 [INFO] [stdout] | [INFO] [stdout] 7 | pub fn exercise() { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `employee_registration` is never used [INFO] [stdout] --> src/collections/exercises.rs:35:8 [INFO] [stdout] | [INFO] [stdout] 35 | pub fn employee_registration() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `remove_employee` is never used [INFO] [stdout] --> src/collections/exercises.rs:70:4 [INFO] [stdout] | [INFO] [stdout] 70 | fn remove_employee(register: &mut HashMap>, other_words: &mut SplitWhitespace) { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `extract_full_name` is never used [INFO] [stdout] --> src/collections/exercises.rs:90:4 [INFO] [stdout] | [INFO] [stdout] 90 | fn extract_full_name(words: &mut SplitWhitespace, stop: &str) -> Result { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `register_employee` is never used [INFO] [stdout] --> src/collections/exercises.rs:108:4 [INFO] [stdout] | [INFO] [stdout] 108 | fn register_employee(register: &mut HashMap>, other_words: &mut SplitWhitespace) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `print_register` is never used [INFO] [stdout] --> src/collections/exercises.rs:119:4 [INFO] [stdout] | [INFO] [stdout] 119 | fn print_register(register: &HashMap>) { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `hash_it_up` is never used [INFO] [stdout] --> src/collections/hashmaps.rs:3:8 [INFO] [stdout] | [INFO] [stdout] 3 | pub fn hash_it_up() { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `string_stuff` is never used [INFO] [stdout] --> src/collections/strings.rs:2:8 [INFO] [stdout] | [INFO] [stdout] 2 | pub fn string_stuff() { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `got_game` is never used [INFO] [stdout] --> src/collections/strings.rs:22:4 [INFO] [stdout] | [INFO] [stdout] 22 | fn got_game() -> String { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `value` is never read [INFO] [stdout] --> src/prepackages/gg.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 6 | struct Guess { [INFO] [stdout] | ----- field in this struct [INFO] [stdout] 7 | value: i32 [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `value` is never used [INFO] [stdout] --> src/prepackages/gg.rs:19:12 [INFO] [stdout] | [INFO] [stdout] 10 | impl Guess { [INFO] [stdout] | ---------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 19 | pub fn value(&self) -> i32 { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `play_the_guessing_game` is never used [INFO] [stdout] --> src/prepackages/gg.rs:24:8 [INFO] [stdout] | [INFO] [stdout] 24 | pub fn play_the_guessing_game() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `own` is never used [INFO] [stdout] --> src/prepackages/ownership.rs:2:8 [INFO] [stdout] | [INFO] [stdout] 2 | pub fn own() { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `takes_ownership` is never used [INFO] [stdout] --> src/prepackages/ownership.rs:47:4 [INFO] [stdout] | [INFO] [stdout] 47 | fn takes_ownership(val: String) { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `makes_copy` is never used [INFO] [stdout] --> src/prepackages/ownership.rs:51:4 [INFO] [stdout] | [INFO] [stdout] 51 | fn makes_copy(number: i32) { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `references_and_borrowing` is never used [INFO] [stdout] --> src/prepackages/ownership.rs:56:4 [INFO] [stdout] | [INFO] [stdout] 56 | fn references_and_borrowing() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `calculate_length` is never used [INFO] [stdout] --> src/prepackages/ownership.rs:87:4 [INFO] [stdout] | [INFO] [stdout] 87 | fn calculate_length(s: &String) -> usize { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `string_to_length` is never used [INFO] [stdout] --> src/prepackages/ownership.rs:91:4 [INFO] [stdout] | [INFO] [stdout] 91 | fn string_to_length(s: String) -> usize { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `print_length` is never used [INFO] [stdout] --> src/prepackages/ownership.rs:95:4 [INFO] [stdout] | [INFO] [stdout] 95 | fn print_length(s: &String) { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `legalized_modification` is never used [INFO] [stdout] --> src/prepackages/ownership.rs:103:4 [INFO] [stdout] | [INFO] [stdout] 103 | fn legalized_modification(s: &mut String) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `slice_stuff` is never used [INFO] [stdout] --> src/prepackages/ownership.rs:108:4 [INFO] [stdout] | [INFO] [stdout] 108 | fn slice_stuff() { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `first_word` is never used [INFO] [stdout] --> src/prepackages/ownership.rs:140:4 [INFO] [stdout] | [INFO] [stdout] 140 | fn first_word(s: &String) -> usize { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `User` is never constructed [INFO] [stdout] --> src/prepackages/structs.rs:2:8 [INFO] [stdout] | [INFO] [stdout] 2 | struct User { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Color` is never constructed [INFO] [stdout] --> src/prepackages/structs.rs:9:8 [INFO] [stdout] | [INFO] [stdout] 9 | struct Color(i32, i32, i32); [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Point` is never constructed [INFO] [stdout] --> src/prepackages/structs.rs:10:8 [INFO] [stdout] | [INFO] [stdout] 10 | struct Point(i32, i32, i32); [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `structure` is never used [INFO] [stdout] --> src/prepackages/structs.rs:12:8 [INFO] [stdout] | [INFO] [stdout] 12 | pub fn structure() { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `first_structs` is never used [INFO] [stdout] --> src/prepackages/structs.rs:19:4 [INFO] [stdout] | [INFO] [stdout] 19 | fn first_structs() { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `build_user` is never used [INFO] [stdout] --> src/prepackages/structs.rs:39:4 [INFO] [stdout] | [INFO] [stdout] 39 | fn build_user(email: String, username1: String) -> User { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Rectangle` is never constructed [INFO] [stdout] --> src/prepackages/structs.rs:49:8 [INFO] [stdout] | [INFO] [stdout] 49 | struct Rectangle { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Circle` is never constructed [INFO] [stdout] --> src/prepackages/structs.rs:55:8 [INFO] [stdout] | [INFO] [stdout] 55 | struct Circle { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: multiple associated items are never used [INFO] [stdout] --> src/prepackages/structs.rs:61:8 [INFO] [stdout] | [INFO] [stdout] 59 | impl Rectangle { [INFO] [stdout] | -------------- associated items in this implementation [INFO] [stdout] 60 | [INFO] [stdout] 61 | fn area(&self) -> u32 { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 65 | fn longest_side(&self) -> u32 { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 72 | fn is_square(&self) -> bool { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 77 | fn transform_to_circle(self) -> Circle { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 81 | fn can_hold(&self, other: &Rectangle) -> bool { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 85 | fn stretch(&mut self, add_height: u32, add_width: u32) { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 91 | fn square(size: u32) -> Rectangle { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `shrink` is never used [INFO] [stdout] --> src/prepackages/structs.rs:101:8 [INFO] [stdout] | [INFO] [stdout] 100 | impl Rectangle { [INFO] [stdout] | -------------- method in this implementation [INFO] [stdout] 101 | fn shrink(&mut self, take_height: u32, take_width: u32) { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `rectangles` is never used [INFO] [stdout] --> src/prepackages/structs.rs:107:4 [INFO] [stdout] | [INFO] [stdout] 107 | fn rectangles() { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `area` is never used [INFO] [stdout] --> src/prepackages/structs.rs:131:4 [INFO] [stdout] | [INFO] [stdout] 131 | fn area(rectangle: &Rectangle) -> u32 { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `variate` is never used [INFO] [stdout] --> src/prepackages/variables.rs:2:8 [INFO] [stdout] | [INFO] [stdout] 2 | pub fn variate() { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `function_stuff` is never used [INFO] [stdout] --> src/prepackages/variables.rs:44:4 [INFO] [stdout] | [INFO] [stdout] 44 | fn function_stuff() -> i32 { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `returns_one` is never used [INFO] [stdout] --> src/prepackages/variables.rs:56:4 [INFO] [stdout] | [INFO] [stdout] 56 | fn returns_one() -> i32 { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `fizz_buzz` is never used [INFO] [stdout] --> src/prepackages/variables.rs:60:4 [INFO] [stdout] | [INFO] [stdout] 60 | fn fizz_buzz(x: i32) { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `loop_return` is never used [INFO] [stdout] --> src/prepackages/variables.rs:71:4 [INFO] [stdout] | [INFO] [stdout] 71 | fn loop_return(x: i32) -> i32 { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `countdown` is never used [INFO] [stdout] --> src/prepackages/variables.rs:81:4 [INFO] [stdout] | [INFO] [stdout] 81 | fn countdown(loops: i32) { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `for_loop` is never used [INFO] [stdout] --> src/prepackages/variables.rs:90:4 [INFO] [stdout] | [INFO] [stdout] 90 | fn for_loop(placement: i32) { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `range_for_loop` is never used [INFO] [stdout] --> src/prepackages/variables.rs:98:4 [INFO] [stdout] | [INFO] [stdout] 98 | fn range_for_loop(until: i32) { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `reverse_range_for_loop` is never used [INFO] [stdout] --> src/prepackages/variables.rs:104:4 [INFO] [stdout] | [INFO] [stdout] 104 | fn reverse_range_for_loop(from: i32) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `IpAddrKind` is never used [INFO] [stdout] --> src/prepackages/enums/enums.rs:5:6 [INFO] [stdout] | [INFO] [stdout] 5 | enum IpAddrKind { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `ConciseIpAddr` is never used [INFO] [stdout] --> src/prepackages/enums/enums.rs:10:6 [INFO] [stdout] | [INFO] [stdout] 10 | enum ConciseIpAddr { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `call` is never used [INFO] [stdout] --> src/prepackages/enums/enums.rs:25:8 [INFO] [stdout] | [INFO] [stdout] 24 | impl Message { [INFO] [stdout] | ------------ method in this implementation [INFO] [stdout] 25 | fn call(&self) { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `IpAddr` is never constructed [INFO] [stdout] --> src/prepackages/enums/enums.rs:37:8 [INFO] [stdout] | [INFO] [stdout] 37 | struct IpAddr { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `enumerate` is never used [INFO] [stdout] --> src/prepackages/enums/enums.rs:42:8 [INFO] [stdout] | [INFO] [stdout] 42 | pub fn enumerate() { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `UsState` is never used [INFO] [stdout] --> src/prepackages/enums/matching.rs:3:6 [INFO] [stdout] | [INFO] [stdout] 3 | enum UsState { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `Coin` is never used [INFO] [stdout] --> src/prepackages/enums/matching.rs:9:6 [INFO] [stdout] | [INFO] [stdout] 9 | enum Coin { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `value_in_cents` is never used [INFO] [stdout] --> src/prepackages/enums/matching.rs:17:8 [INFO] [stdout] | [INFO] [stdout] 16 | impl Coin { [INFO] [stdout] | --------- method in this implementation [INFO] [stdout] 17 | fn value_in_cents(&self) -> u8 { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `match_stuff` is never used [INFO] [stdout] --> src/prepackages/enums/matching.rs:33:8 [INFO] [stdout] | [INFO] [stdout] 33 | pub fn match_stuff() { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `find_someone` is never used [INFO] [stdout] --> src/prepackages/enums/matching.rs:41:4 [INFO] [stdout] | [INFO] [stdout] 41 | fn find_someone(optionals: &[Option]) { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `plus_one` is never used [INFO] [stdout] --> src/prepackages/enums/matching.rs:49:4 [INFO] [stdout] | [INFO] [stdout] 49 | fn plus_one(x: Option) -> Option { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `options` is never used [INFO] [stdout] --> src/prepackages/enums/options.rs:2:8 [INFO] [stdout] | [INFO] [stdout] 2 | pub fn options() { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing [INFO] [stdout] --> src/lib.rs:42:21 [INFO] [stdout] | [INFO] [stdout] 42 | let copy = i.clone(); [INFO] [stdout] | ^^^^^^^^ help: remove this redundant call [INFO] [stdout] | [INFO] [stdout] = note: the type `T` does not implement `Clone`, so calling `clone` on `&T` copies the reference, which does not do anything and can be removed [INFO] [stdout] = note: `#[warn(noop_method_call)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.47s [INFO] running `Command { std: "docker" "inspect" "6a9ca292ea9eecd5e8ae53737b0a37c994c9e550177ab7705d360bdae350d48a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6a9ca292ea9eecd5e8ae53737b0a37c994c9e550177ab7705d360bdae350d48a", kill_on_drop: false }` [INFO] [stdout] 6a9ca292ea9eecd5e8ae53737b0a37c994c9e550177ab7705d360bdae350d48a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 06e530fcacc9dc92384eb8e06cb77fa0e2710d85f3b2d704a80ae3e249558388 [INFO] running `Command { std: "docker" "start" "-a" "06e530fcacc9dc92384eb8e06cb77fa0e2710d85f3b2d704a80ae3e249558388", kill_on_drop: false }` [INFO] [stderr] warning: unused manifest key: package.licence [INFO] [stderr] warning: function `exercise` is never used [INFO] [stderr] --> src/collections/exercises.rs:7:8 [INFO] [stderr] | [INFO] [stderr] 7 | pub fn exercise() { [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: function `employee_registration` is never used [INFO] [stderr] --> src/collections/exercises.rs:35:8 [INFO] [stderr] | [INFO] [stderr] 35 | pub fn employee_registration() { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function `remove_employee` is never used [INFO] [stderr] --> src/collections/exercises.rs:70:4 [INFO] [stderr] | [INFO] [stderr] 70 | fn remove_employee(register: &mut HashMap>, other_words: &mut SplitWhitespace) { [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function `extract_full_name` is never used [INFO] [stderr] --> src/collections/exercises.rs:90:4 [INFO] [stderr] | [INFO] [stderr] 90 | fn extract_full_name(words: &mut SplitWhitespace, stop: &str) -> Result { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function `register_employee` is never used [INFO] [stderr] --> src/collections/exercises.rs:108:4 [INFO] [stderr] | [INFO] [stderr] 108 | fn register_employee(register: &mut HashMap>, other_words: &mut SplitWhitespace) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function `print_register` is never used [INFO] [stderr] --> src/collections/exercises.rs:119:4 [INFO] [stderr] | [INFO] [stderr] 119 | fn print_register(register: &HashMap>) { [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function `hash_it_up` is never used [INFO] [stderr] --> src/collections/hashmaps.rs:3:8 [INFO] [stderr] | [INFO] [stderr] 3 | pub fn hash_it_up() { [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function `string_stuff` is never used [INFO] [stderr] --> src/collections/strings.rs:2:8 [INFO] [stderr] | [INFO] [stderr] 2 | pub fn string_stuff() { [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function `got_game` is never used [INFO] [stderr] --> src/collections/strings.rs:22:4 [INFO] [stderr] | [INFO] [stderr] 22 | fn got_game() -> String { [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function `to_pig_latin` is never used [INFO] [stderr] --> src/collections/strings.rs:33:8 [INFO] [stderr] | [INFO] [stderr] 33 | pub fn to_pig_latin(kosher: &String) -> String { [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function `is_vowel` is never used [INFO] [stderr] --> src/collections/strings.rs:53:4 [INFO] [stderr] | [INFO] [stderr] 53 | fn is_vowel(maybe_vowel: &char) -> bool { [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct `Guess` is never constructed [INFO] [stderr] --> src/prepackages/gg.rs:6:8 [INFO] [stderr] | [INFO] [stderr] 6 | struct Guess { [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated items `new` and `value` are never used [INFO] [stderr] --> src/prepackages/gg.rs:11:12 [INFO] [stderr] | [INFO] [stderr] 10 | impl Guess { [INFO] [stderr] | ---------- associated items in this implementation [INFO] [stderr] 11 | pub fn new(value: i32) -> Guess { [INFO] [stderr] | ^^^ [INFO] [stderr] ... [INFO] [stderr] 19 | pub fn value(&self) -> i32 { [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function `play_the_guessing_game` is never used [INFO] [stderr] --> src/prepackages/gg.rs:24:8 [INFO] [stderr] | [INFO] [stderr] 24 | pub fn play_the_guessing_game() { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function `own` is never used [INFO] [stderr] --> src/prepackages/ownership.rs:2:8 [INFO] [stderr] | [INFO] [stderr] 2 | pub fn own() { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: function `takes_ownership` is never used [INFO] [stderr] --> src/prepackages/ownership.rs:47:4 [INFO] [stderr] | [INFO] [stderr] 47 | fn takes_ownership(val: String) { [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function `makes_copy` is never used [INFO] [stderr] --> src/prepackages/ownership.rs:51:4 [INFO] [stderr] | [INFO] [stderr] 51 | fn makes_copy(number: i32) { [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function `references_and_borrowing` is never used [INFO] [stderr] --> src/prepackages/ownership.rs:56:4 [INFO] [stderr] | [INFO] [stderr] 56 | fn references_and_borrowing() { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function `calculate_length` is never used [INFO] [stderr] --> src/prepackages/ownership.rs:87:4 [INFO] [stderr] | [INFO] [stderr] 87 | fn calculate_length(s: &String) -> usize { [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function `string_to_length` is never used [INFO] [stderr] --> src/prepackages/ownership.rs:91:4 [INFO] [stderr] | [INFO] [stderr] 91 | fn string_to_length(s: String) -> usize { [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function `print_length` is never used [INFO] [stderr] --> src/prepackages/ownership.rs:95:4 [INFO] [stderr] | [INFO] [stderr] 95 | fn print_length(s: &String) { [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function `legalized_modification` is never used [INFO] [stderr] --> src/prepackages/ownership.rs:103:4 [INFO] [stderr] | [INFO] [stderr] 103 | fn legalized_modification(s: &mut String) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function `slice_stuff` is never used [INFO] [stderr] --> src/prepackages/ownership.rs:108:4 [INFO] [stderr] | [INFO] [stderr] 108 | fn slice_stuff() { [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function `slice_first_word` is never used [INFO] [stderr] --> src/prepackages/ownership.rs:124:4 [INFO] [stderr] | [INFO] [stderr] 124 | fn slice_first_word(s: &String) -> &str { [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function `first_word` is never used [INFO] [stderr] --> src/prepackages/ownership.rs:140:4 [INFO] [stderr] | [INFO] [stderr] 140 | fn first_word(s: &String) -> usize { [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct `User` is never constructed [INFO] [stderr] --> src/prepackages/structs.rs:2:8 [INFO] [stderr] | [INFO] [stderr] 2 | struct User { [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct `Color` is never constructed [INFO] [stderr] --> src/prepackages/structs.rs:9:8 [INFO] [stderr] | [INFO] [stderr] 9 | struct Color(i32, i32, i32); [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct `Point` is never constructed [INFO] [stderr] --> src/prepackages/structs.rs:10:8 [INFO] [stderr] | [INFO] [stderr] 10 | struct Point(i32, i32, i32); [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function `structure` is never used [INFO] [stderr] --> src/prepackages/structs.rs:12:8 [INFO] [stderr] | [INFO] [stderr] 12 | pub fn structure() { [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function `first_structs` is never used [INFO] [stderr] --> src/prepackages/structs.rs:19:4 [INFO] [stderr] | [INFO] [stderr] 19 | fn first_structs() { [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function `build_user` is never used [INFO] [stderr] --> src/prepackages/structs.rs:39:4 [INFO] [stderr] | [INFO] [stderr] 39 | fn build_user(email: String, username1: String) -> User { [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct `Rectangle` is never constructed [INFO] [stderr] --> src/prepackages/structs.rs:49:8 [INFO] [stderr] | [INFO] [stderr] 49 | struct Rectangle { [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct `Circle` is never constructed [INFO] [stderr] --> src/prepackages/structs.rs:55:8 [INFO] [stderr] | [INFO] [stderr] 55 | struct Circle { [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: multiple associated items are never used [INFO] [stderr] --> src/prepackages/structs.rs:61:8 [INFO] [stderr] | [INFO] [stderr] 59 | impl Rectangle { [INFO] [stderr] | -------------- associated items in this implementation [INFO] [stderr] 60 | [INFO] [stderr] 61 | fn area(&self) -> u32 { [INFO] [stderr] | ^^^^ [INFO] [stderr] ... [INFO] [stderr] 65 | fn longest_side(&self) -> u32 { [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] ... [INFO] [stderr] 72 | fn is_square(&self) -> bool { [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] ... [INFO] [stderr] 77 | fn transform_to_circle(self) -> Circle { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] ... [INFO] [stderr] 81 | fn can_hold(&self, other: &Rectangle) -> bool { [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] ... [INFO] [stderr] 85 | fn stretch(&mut self, add_height: u32, add_width: u32) { [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] ... [INFO] [stderr] 91 | fn square(size: u32) -> Rectangle { [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method `shrink` is never used [INFO] [stderr] --> src/prepackages/structs.rs:101:8 [INFO] [stderr] | [INFO] [stderr] 100 | impl Rectangle { [INFO] [stderr] | -------------- method in this implementation [INFO] [stderr] 101 | fn shrink(&mut self, take_height: u32, take_width: u32) { [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function `rectangles` is never used [INFO] [stderr] --> src/prepackages/structs.rs:107:4 [INFO] [stderr] | [INFO] [stderr] 107 | fn rectangles() { [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function `area` is never used [INFO] [stderr] --> src/prepackages/structs.rs:131:4 [INFO] [stderr] | [INFO] [stderr] 131 | fn area(rectangle: &Rectangle) -> u32 { [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: function `variate` is never used [INFO] [stderr] --> src/prepackages/variables.rs:2:8 [INFO] [stderr] | [INFO] [stderr] 2 | pub fn variate() { [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function `function_stuff` is never used [INFO] [stderr] --> src/prepackages/variables.rs:44:4 [INFO] [stderr] | [INFO] [stderr] 44 | fn function_stuff() -> i32 { [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function `returns_one` is never used [INFO] [stderr] --> src/prepackages/variables.rs:56:4 [INFO] [stderr] | [INFO] [stderr] 56 | fn returns_one() -> i32 { [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function `fizz_buzz` is never used [INFO] [stderr] --> src/prepackages/variables.rs:60:4 [INFO] [stderr] | [INFO] [stderr] 60 | fn fizz_buzz(x: i32) { [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function `loop_return` is never used [INFO] [stderr] --> src/prepackages/variables.rs:71:4 [INFO] [stderr] | [INFO] [stderr] 71 | fn loop_return(x: i32) -> i32 { [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function `countdown` is never used [INFO] [stderr] --> src/prepackages/variables.rs:81:4 [INFO] [stderr] | [INFO] [stderr] 81 | fn countdown(loops: i32) { [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function `for_loop` is never used [INFO] [stderr] --> src/prepackages/variables.rs:90:4 [INFO] [stderr] | [INFO] [stderr] 90 | fn for_loop(placement: i32) { [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function `range_for_loop` is never used [INFO] [stderr] --> src/prepackages/variables.rs:98:4 [INFO] [stderr] | [INFO] [stderr] 98 | fn range_for_loop(until: i32) { [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function `reverse_range_for_loop` is never used [INFO] [stderr] --> src/prepackages/variables.rs:104:4 [INFO] [stderr] | [INFO] [stderr] 104 | fn reverse_range_for_loop(from: i32) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: enum `IpAddrKind` is never used [INFO] [stderr] --> src/prepackages/enums/enums.rs:5:6 [INFO] [stderr] | [INFO] [stderr] 5 | enum IpAddrKind { [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: enum `ConciseIpAddr` is never used [INFO] [stderr] --> src/prepackages/enums/enums.rs:10:6 [INFO] [stderr] | [INFO] [stderr] 10 | enum ConciseIpAddr { [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method `call` is never used [INFO] [stderr] --> src/prepackages/enums/enums.rs:25:8 [INFO] [stderr] | [INFO] [stderr] 24 | impl Message { [INFO] [stderr] | ------------ method in this implementation [INFO] [stderr] 25 | fn call(&self) { [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct `IpAddr` is never constructed [INFO] [stderr] --> src/prepackages/enums/enums.rs:37:8 [INFO] [stderr] | [INFO] [stderr] 37 | struct IpAddr { [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function `enumerate` is never used [INFO] [stderr] --> src/prepackages/enums/enums.rs:42:8 [INFO] [stderr] | [INFO] [stderr] 42 | pub fn enumerate() { [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: enum `UsState` is never used [INFO] [stderr] --> src/prepackages/enums/matching.rs:3:6 [INFO] [stderr] | [INFO] [stderr] 3 | enum UsState { [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: enum `Coin` is never used [INFO] [stderr] --> src/prepackages/enums/matching.rs:9:6 [INFO] [stderr] | [INFO] [stderr] 9 | enum Coin { [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: method `value_in_cents` is never used [INFO] [stderr] --> src/prepackages/enums/matching.rs:17:8 [INFO] [stderr] | [INFO] [stderr] 16 | impl Coin { [INFO] [stderr] | --------- method in this implementation [INFO] [stderr] 17 | fn value_in_cents(&self) -> u8 { [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function `match_stuff` is never used [INFO] [stderr] --> src/prepackages/enums/matching.rs:33:8 [INFO] [stderr] | [INFO] [stderr] 33 | pub fn match_stuff() { [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function `find_someone` is never used [INFO] [stderr] --> src/prepackages/enums/matching.rs:41:4 [INFO] [stderr] | [INFO] [stderr] 41 | fn find_someone(optionals: &[Option]) { [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function `plus_one` is never used [INFO] [stderr] --> src/prepackages/enums/matching.rs:49:4 [INFO] [stderr] | [INFO] [stderr] 49 | fn plus_one(x: Option) -> Option { [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function `options` is never used [INFO] [stderr] --> src/prepackages/enums/options.rs:2:8 [INFO] [stderr] | [INFO] [stderr] 2 | pub fn options() { [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: call to `.clone()` on a reference in this situation does nothing [INFO] [stderr] --> src/lib.rs:42:21 [INFO] [stderr] | [INFO] [stderr] 42 | let copy = i.clone(); [INFO] [stderr] | ^^^^^^^^ help: remove this redundant call [INFO] [stderr] | [INFO] [stderr] = note: the type `T` does not implement `Clone`, so calling `clone` on `&T` copies the reference, which does not do anything and can be removed [INFO] [stderr] = note: `#[warn(noop_method_call)]` on by default [INFO] [stderr] [INFO] [stderr] warning: field `value` is never read [INFO] [stderr] --> src/prepackages/gg.rs:7:5 [INFO] [stderr] | [INFO] [stderr] 6 | struct Guess { [INFO] [stderr] | ----- field in this struct [INFO] [stderr] 7 | value: i32 [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method `value` is never used [INFO] [stderr] --> src/prepackages/gg.rs:19:12 [INFO] [stderr] | [INFO] [stderr] 10 | impl Guess { [INFO] [stderr] | ---------- method in this implementation [INFO] [stderr] ... [INFO] [stderr] 19 | pub fn value(&self) -> i32 { [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: `study-crate` (lib) generated 59 warnings (run `cargo fix --lib -p study-crate` to apply 1 suggestion) [INFO] [stderr] warning: `study-crate` (lib test) generated 56 warnings (54 duplicates) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/study_crate-f0d89304637f7898) [INFO] [stdout] [INFO] [stdout] running 8 tests [INFO] [stdout] test collections::strings::tests::to_pig_latin_identifies_consonant ... ok [INFO] [stdout] test collections::strings::tests::to_pig_latin_identifies_vowel ... ok [INFO] [stdout] test collections::strings::tests::to_pig_latin_identifies_pseudo_vowel ... ok [INFO] [stdout] test prepackages::ownership::tests::slice_first_word_returns_entire_word ... ok [INFO] [stdout] test prepackages::ownership::tests::slice_first_word_returns_first ... ok [INFO] [stdout] test tests::find_mode_chars ... ok [INFO] [stdout] test prepackages::gg::tests::panics_on_smaller_than_1 - should panic ... ok [INFO] [stdout] test prepackages::gg::tests::panics_on_greater_than_100 - should panic ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s [INFO] [stdout] [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/study_crate-482ef5b89f1f100c) [INFO] [stdout] [INFO] [stdout] running 36 tests [INFO] [stdout] test collections::strings::tests::to_pig_latin_identifies_consonant ... ok [INFO] [stdout] test collections::strings::tests::to_pig_latin_identifies_pseudo_vowel ... ok [INFO] [stdout] test collections::strings::tests::to_pig_latin_identifies_vowel ... ok [INFO] [stdout] test concurrent::channel::tests::test_the_waters ... ok [INFO] [stdout] test concurrent::lock::tests::test_get_that_lock ... ok [INFO] [stdout] test concurrent::classic::tests::vec_moves ... ok [INFO] [stdout] test fp::closures::tests::call_with_different_values ... ok [INFO] [stdout] test fp::closures::tests::move_value_closure ... ok [INFO] [stdout] test fp::patterns::tests::be_unintuitive ... ok [INFO] [stdout] test fp::patterns::tests::call_destructuring_function ... ok [INFO] [stdout] test fp::patterns::tests::destructure_tuple ... ok [INFO] [stdout] test generics::functions::tests::test_find_largest ... ok [INFO] [stdout] test oop::rust_states_lib::tests::test_blog_lifecycle ... ok [INFO] [stdout] test oop::rust_states_lib::tests::test_private_constructor ... ok [INFO] [stdout] test oop::states::tests::test_blog_lifecycle ... ok [INFO] [stdout] test pointers::smart::tests::diy_box ... ok [INFO] [stdout] test pointers::smart::tests::box_vs_pointer ... ok [INFO] [stdout] test pointers::smart::tests::drop_it_like_it_is_out_of_scope ... ok [INFO] [stdout] test pointers::smart::tests::early_drop ... ok [INFO] [stdout] test pointers::smart::tests::first_box ... ok [INFO] [stdout] test concurrent::lock::tests::test_contested_lock ... ok [INFO] [stdout] test pointers::smart::tests::multiple_references_cons ... ok [INFO] [stdout] test pointers::smart::tests::say_hello ... ok [INFO] [stdout] test pointers::smart::tests::create_cons_list ... ok [INFO] [stdout] test prepackages::ownership::tests::slice_first_word_returns_entire_word ... ok [INFO] [stdout] test prepackages::ownership::tests::slice_first_word_returns_first ... ok [INFO] [stdout] test concurrent::classic::tests::concurrency_is_black_magic ... ok [INFO] [stdout] test exceptions::tests::test_read_username_from_file ... FAILED [INFO] [stdout] test exceptions::tests::test_succinct_read ... FAILED [INFO] [stdout] test prepackages::gg::tests::panics_on_smaller_than_1 - should panic ... ok [INFO] [stdout] test prepackages::gg::tests::panics_on_greater_than_100 - should panic ... ok [INFO] [stdout] test fp::closures::tests::insanity_is_accepted ... ok [INFO] [stdout] test fp::closures::tests::simulated_expensive_calculation_closure ... ok [INFO] [stdout] test fp::closures::tests::returns_cached_value ... ok [INFO] [stdout] test concurrent::channel::tests::get_out_to_sea ... ok [INFO] [stdout] test concurrent::channel::tests::get_far_out ... ok [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] [INFO] [stdout] ---- exceptions::tests::test_read_username_from_file stdout ---- [INFO] [stdout] [INFO] [stdout] thread 'exceptions::tests::test_read_username_from_file' (50) panicked at src/exceptions.rs:78:9: [INFO] [stdout] assertion failed: result.is_ok() [INFO] [stdout] stack backtrace: [INFO] [stdout] 0: 0x5db5222f8aa2 - std::backtrace_rs::backtrace::libunwind::trace::hf0bd46b30bc61685 [INFO] [stdout] at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9 [INFO] [stdout] 1: 0x5db5222f8aa2 - std::backtrace_rs::backtrace::trace_unsynchronized::h1d1fbb72ad89d7b7 [INFO] [stdout] at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14 [INFO] [stdout] 2: 0x5db5222f8aa2 - std::sys::backtrace::_print_fmt::he38b6f68ca847f47 [INFO] [stdout] at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/sys/backtrace.rs:74:9 [INFO] [stdout] 3: 0x5db5222f8aa2 - ::fmt::hb7e843cde1bc81a3 [INFO] [stdout] at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/sys/backtrace.rs:44:26 [INFO] [stdout] 4: 0x5db522308d5a - core::fmt::rt::Argument::fmt::hc1dd77ac64f2688c [INFO] [stdout] at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/fmt/rt.rs:152:76 [INFO] [stdout] 5: 0x5db522308d5a - core::fmt::write::h952c506e2dbe9cff [INFO] [stdout] 6: 0x5db5222c7936 - std::io::default_write_fmt::hd23bd8145c03a23a [INFO] [stdout] at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/io/mod.rs:639:11 [INFO] [stdout] 7: 0x5db5222c7936 - std::io::Write::write_fmt::hdd3314a2bd8a34bd [INFO] [stdout] at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/io/mod.rs:1994:13 [INFO] [stdout] 8: 0x5db5222d7f69 - std::sys::backtrace::BacktraceLock::print::h1079b82381c2c252 [INFO] [stdout] at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/sys/backtrace.rs:47:9 [INFO] [stdout] 9: 0x5db5222d7f69 - std::panicking::default_hook::{{closure}}::h85cb76b8462c00f2 [INFO] [stdout] at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:292:27 [INFO] [stdout] 10: 0x5db5222d7e01 - std::panicking::default_hook::h0134d220cc034c02 [INFO] [stdout] at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:316:9 [INFO] [stdout] 11: 0x5db52229aa9e - as core::ops::function::Fn>::call::hb2e68dca3970e3ca [INFO] [stdout] at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/alloc/src/boxed.rs:2220:9 [INFO] [stdout] 12: 0x5db52229aa9e - test::test_main_with_exit_callback::{{closure}}::ha7ec2063a2565ec3 [INFO] [stdout] at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/test/src/lib.rs:145:21 [INFO] [stdout] 13: 0x5db5222d81e2 - as core::ops::function::Fn>::call::haebee478d0f56cf4 [INFO] [stdout] at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/alloc/src/boxed.rs:2220:9 [INFO] [stdout] 14: 0x5db5222d81e2 - std::panicking::panic_with_hook::h8119b6db1fef734f [INFO] [stdout] at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:833:13 [INFO] [stdout] 15: 0x5db5222d805a - std::panicking::panic_handler::{{closure}}::h24f5360b91482c0e [INFO] [stdout] at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:691:13 [INFO] [stdout] 16: 0x5db5222d34e9 - std::sys::backtrace::__rust_end_short_backtrace::h4e60c5cbd1bd0108 [INFO] [stdout] at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/sys/backtrace.rs:182:18 [INFO] [stdout] 17: 0x5db5222bbdbd - __rustc[e4c6931bd8050421]::rust_begin_unwind [INFO] [stdout] at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:689:5 [INFO] [stdout] 18: 0x5db52231016c - core::panicking::panic_fmt::hb1614a3ff6840071 [INFO] [stdout] at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/panicking.rs:80:14 [INFO] [stdout] 19: 0x5db522310132 - core::panicking::panic::h6519d2e94a76dd19 [INFO] [stdout] at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/panicking.rs:150:5 [INFO] [stdout] 20: 0x5db52226ddb9 - study_crate::exceptions::tests::test_read_username_from_file::h59584e58250828f6 [INFO] [stdout] at /opt/rustwide/workdir/src/exceptions.rs:78:9 [INFO] [stdout] 21: 0x5db52226df77 - study_crate::exceptions::tests::test_read_username_from_file::{{closure}}::h7ce893723acbb75b [INFO] [stdout] at /opt/rustwide/workdir/src/exceptions.rs:76:38 [INFO] [stdout] 22: 0x5db522274336 - core::ops::function::FnOnce::call_once::h79d0496dfdb01ad9 [INFO] [stdout] at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 23: 0x5db52229a89b - core::ops::function::FnOnce::call_once::hefaf63600cd43d2a [INFO] [stdout] at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 24: 0x5db52229a89b - test::__rust_begin_short_backtrace::he30322a73a0e9ea6 [INFO] [stdout] at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/test/src/lib.rs:663:18 [INFO] [stdout] 25: 0x5db5222ae26a - test::run_test_in_process::{{closure}}::hdea3ab8d0243ef36 [INFO] [stdout] at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/test/src/lib.rs:686:74 [INFO] [stdout] 26: 0x5db5222ae26a - as core::ops::function::FnOnce<()>>::call_once::h66d192f42498ffce [INFO] [stdout] at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/panic/unwind_safe.rs:274:9 [INFO] [stdout] 27: 0x5db5222ae26a - std::panicking::catch_unwind::do_call::h822e18e8d3a6bb65 [INFO] [stdout] at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:581:40 [INFO] [stdout] 28: 0x5db5222ae26a - std::panicking::catch_unwind::h54b1de7ceab578bf [INFO] [stdout] at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:544:19 [INFO] [stdout] 29: 0x5db5222ae26a - std::panic::catch_unwind::h60c29b7a9d0246b1 [INFO] [stdout] at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panic.rs:359:14 [INFO] [stdout] 30: 0x5db5222ae26a - test::run_test_in_process::h6099b5f871379b13 [INFO] [stdout] at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/test/src/lib.rs:686:27 [INFO] [stdout] 31: 0x5db5222ae26a - test::run_test::{{closure}}::h926ce0a38281a4c8 [INFO] [stdout] at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/test/src/lib.rs:607:43 [INFO] [stdout] 32: 0x5db5222886c4 - test::run_test::{{closure}}::h508de21a9afc7140 [INFO] [stdout] at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/test/src/lib.rs:637:41 [INFO] [stdout] 33: 0x5db5222886c4 - std::sys::backtrace::__rust_begin_short_backtrace::h6e2f5c39ca00735a [INFO] [stdout] at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/sys/backtrace.rs:166:18 [INFO] [stdout] 34: 0x5db52228bf82 - std::thread::lifecycle::spawn_unchecked::{{closure}}::{{closure}}::h133e44f0e5802c14 [INFO] [stdout] at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/thread/lifecycle.rs:91:13 [INFO] [stdout] 35: 0x5db52228bf82 - as core::ops::function::FnOnce<()>>::call_once::h4718c1285283955c [INFO] [stdout] at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/panic/unwind_safe.rs:274:9 [INFO] [stdout] 36: 0x5db52228bf82 - std::panicking::catch_unwind::do_call::h0bba3937b4892238 [INFO] [stdout] at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:581:40 [INFO] [stdout] 37: 0x5db52228bf82 - std::panicking::catch_unwind::h5b31cab5fb8c5d7f [INFO] [stdout] at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:544:19 [INFO] [stdout] 38: 0x5db52228bf82 - std::panic::catch_unwind::hb2fa05d52ed0124e [INFO] [stdout] at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panic.rs:359:14 [INFO] [stdout] 39: 0x5db52228bf82 - std::thread::lifecycle::spawn_unchecked::{{closure}}::hf401cf5ff501bd29 [INFO] [stdout] at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/thread/lifecycle.rs:89:26 [INFO] [stdout] 40: 0x5db52228bf82 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h160022e94ce3b0bb [INFO] [stdout] at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 41: 0x5db5222ce77f - as core::ops::function::FnOnce>::call_once::hf234e0d1d1d272ba [INFO] [stdout] at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/alloc/src/boxed.rs:2206:9 [INFO] [stdout] 42: 0x5db5222ce77f - std::sys::thread::unix::Thread::new::thread_start::h106a295241840d3b [INFO] [stdout] at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/sys/thread/unix.rs:127:17 [INFO] [stdout] 43: 0x723af0fbaaa4 - [INFO] [stdout] 44: 0x723af1047a64 - clone [INFO] [stdout] 45: 0x0 - [INFO] [stdout] [INFO] [stdout] ---- exceptions::tests::test_succinct_read stdout ---- [INFO] [stdout] [INFO] [stdout] thread 'exceptions::tests::test_succinct_read' (51) panicked at src/exceptions.rs:85:9: [INFO] [stdout] assertion failed: result.is_ok() [INFO] [stdout] stack backtrace: [INFO] [stdout] 0: 0x5db5222f8aa2 - std::backtrace_rs::backtrace::libunwind::trace::hf0bd46b30bc61685 [INFO] [stdout] at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9 [INFO] [stdout] 1: 0x5db5222f8aa2 - std::backtrace_rs::backtrace::trace_unsynchronized::h1d1fbb72ad89d7b7 [INFO] [stdout] at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14 [INFO] [stdout] 2: 0x5db5222f8aa2 - std::sys::backtrace::_print_fmt::he38b6f68ca847f47 [INFO] [stdout] at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/sys/backtrace.rs:74:9 [INFO] [stdout] 3: 0x5db5222f8aa2 - ::fmt::hb7e843cde1bc81a3 [INFO] [stdout] at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/sys/backtrace.rs:44:26 [INFO] [stdout] 4: 0x5db522308d5a - core::fmt::rt::Argument::fmt::hc1dd77ac64f2688c [INFO] [stdout] at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/fmt/rt.rs:152:76 [INFO] [stdout] 5: 0x5db522308d5a - core::fmt::write::h952c506e2dbe9cff [INFO] [stdout] 6: 0x5db5222c7936 - std::io::default_write_fmt::hd23bd8145c03a23a [INFO] [stdout] at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/io/mod.rs:639:11 [INFO] [stdout] 7: 0x5db5222c7936 - std::io::Write::write_fmt::hdd3314a2bd8a34bd [INFO] [stdout] at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/io/mod.rs:1994:13 [INFO] [stdout] 8: 0x5db5222d7f69 - std::sys::backtrace::BacktraceLock::print::h1079b82381c2c252 [INFO] [stdout] at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/sys/backtrace.rs:47:9 [INFO] [stdout] 9: 0x5db5222d7f69 - std::panicking::default_hook::{{closure}}::h85cb76b8462c00f2 [INFO] [stdout] at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:292:27 [INFO] [stdout] 10: 0x5db5222d7e01 - std::panicking::default_hook::h0134d220cc034c02 [INFO] [stdout] at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:316:9 [INFO] [stdout] 11: 0x5db52229aa9e - as core::ops::function::Fn>::call::hb2e68dca3970e3ca [INFO] [stdout] at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/alloc/src/boxed.rs:2220:9 [INFO] [stdout] 12: 0x5db52229aa9e - test::test_main_with_exit_callback::{{closure}}::ha7ec2063a2565ec3 [INFO] [stdout] at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/test/src/lib.rs:145:21 [INFO] [stdout] 13: 0x5db5222d81e2 - as core::ops::function::Fn>::call::haebee478d0f56cf4 [INFO] [stdout] at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/alloc/src/boxed.rs:2220:9 [INFO] [stdout] 14: 0x5db5222d81e2 - std::panicking::panic_with_hook::h8119b6db1fef734f [INFO] [stdout] at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:833:13 [INFO] [stdout] 15: 0x5db5222d805a - std::panicking::panic_handler::{{closure}}::h24f5360b91482c0e [INFO] [stdout] at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:691:13 [INFO] [stdout] 16: 0x5db5222d34e9 - std::sys::backtrace::__rust_end_short_backtrace::h4e60c5cbd1bd0108 [INFO] [stdout] at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/sys/backtrace.rs:182:18 [INFO] [stdout] 17: 0x5db5222bbdbd - __rustc[e4c6931bd8050421]::rust_begin_unwind [INFO] [stdout] at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:689:5 [INFO] [stdout] 18: 0x5db52231016c - core::panicking::panic_fmt::hb1614a3ff6840071 [INFO] [stdout] at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/panicking.rs:80:14 [INFO] [stdout] 19: 0x5db522310132 - core::panicking::panic::h6519d2e94a76dd19 [INFO] [stdout] at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/panicking.rs:150:5 [INFO] [stdout] 20: 0x5db52226db49 - study_crate::exceptions::tests::test_succinct_read::h9644fb212fa2c2ed [INFO] [stdout] at /opt/rustwide/workdir/src/exceptions.rs:85:9 [INFO] [stdout] 21: 0x5db52226dd07 - study_crate::exceptions::tests::test_succinct_read::{{closure}}::h93b77e2406221672 [INFO] [stdout] at /opt/rustwide/workdir/src/exceptions.rs:83:28 [INFO] [stdout] 22: 0x5db522274756 - core::ops::function::FnOnce::call_once::hc3ecb40bda6b1cf6 [INFO] [stdout] at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 23: 0x5db52229a89b - core::ops::function::FnOnce::call_once::hefaf63600cd43d2a [INFO] [stdout] at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 24: 0x5db52229a89b - test::__rust_begin_short_backtrace::he30322a73a0e9ea6 [INFO] [stdout] at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/test/src/lib.rs:663:18 [INFO] [stdout] 25: 0x5db5222ae26a - test::run_test_in_process::{{closure}}::hdea3ab8d0243ef36 [INFO] [stdout] at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/test/src/lib.rs:686:74 [INFO] [stdout] 26: 0x5db5222ae26a - as core::ops::function::FnOnce<()>>::call_once::h66d192f42498ffce [INFO] [stdout] at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/panic/unwind_safe.rs:274:9 [INFO] [stdout] 27: 0x5db5222ae26a - std::panicking::catch_unwind::do_call::h822e18e8d3a6bb65 [INFO] [stdout] at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:581:40 [INFO] [stdout] 28: 0x5db5222ae26a - std::panicking::catch_unwind::h54b1de7ceab578bf [INFO] [stdout] at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:544:19 [INFO] [stdout] 29: 0x5db5222ae26a - std::panic::catch_unwind::h60c29b7a9d0246b1 [INFO] [stdout] at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panic.rs:359:14 [INFO] [stdout] 30: 0x5db5222ae26a - test::run_test_in_process::h6099b5f871379b13 [INFO] [stdout] at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/test/src/lib.rs:686:27 [INFO] [stdout] 31: 0x5db5222ae26a - test::run_test::{{closure}}::h926ce0a38281a4c8 [INFO] [stdout] at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/test/src/lib.rs:607:43 [INFO] [stdout] 32: 0x5db5222886c4 - test::run_test::{{closure}}::h508de21a9afc7140 [INFO] [stdout] at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/test/src/lib.rs:637:41 [INFO] [stdout] 33: 0x5db5222886c4 - std::sys::backtrace::__rust_begin_short_backtrace::h6e2f5c39ca00735a [INFO] [stdout] at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/sys/backtrace.rs:166:18 [INFO] [stdout] 34: 0x5db52228bf82 - std::thread::lifecycle::spawn_unchecked::{{closure}}::{{closure}}::h133e44f0e5802c14 [INFO] [stdout] at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/thread/lifecycle.rs:91:13 [INFO] [stdout] 35: 0x5db52228bf82 - as core::ops::function::FnOnce<()>>::call_once::h4718c1285283955c [INFO] [stdout] at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/panic/unwind_safe.rs:274:9 [INFO] [stdout] 36: 0x5db52228bf82 - std::panicking::catch_unwind::do_call::h0bba3937b4892238 [INFO] [stdout] at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:581:40 [INFO] [stdout] 37: 0x5db52228bf82 - std::panicking::catch_unwind::h5b31cab5fb8c5d7f [INFO] [stdout] at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:544:19 [INFO] [stdout] 38: 0x5db52228bf82 - std::panic::catch_unwind::hb2fa05d52ed0124e [INFO] [stdout] at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panic.rs:359:14 [INFO] [stdout] 39: 0x5db52228bf82 - std::thread::lifecycle::spawn_unchecked::{{closure}}::hf401cf5ff501bd29 [INFO] [stdout] at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/thread/lifecycle.rs:89:26 [INFO] [stdout] 40: 0x5db52228bf82 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h160022e94ce3b0bb [INFO] [stdout] at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 41: 0x5db5222ce77f - as core::ops::function::FnOnce>::call_once::hf234e0d1d1d272ba [INFO] [stdout] at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/alloc/src/boxed.rs:2206:9 [INFO] [stdout] 42: 0x5db5222ce77f - std::sys::thread::unix::Thread::new::thread_start::h106a295241840d3b [INFO] [stdout] at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/sys/thread/unix.rs:127:17 [INFO] [stdout] 43: 0x723af0fbaaa4 - [INFO] [stdout] 44: 0x723af1047a64 - clone [INFO] [stdout] 45: 0x0 - [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] exceptions::tests::test_read_username_from_file [INFO] [stdout] exceptions::tests::test_succinct_read [INFO] [stdout] [INFO] [stdout] test result: FAILED. 34 passed; 2 failed; 0 ignored; 0 measured; 0 filtered out; finished in 4.00s [INFO] [stdout] [INFO] [stderr] error: test failed, to rerun pass `--bin study-crate` [INFO] running `Command { std: "docker" "inspect" "06e530fcacc9dc92384eb8e06cb77fa0e2710d85f3b2d704a80ae3e249558388", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "06e530fcacc9dc92384eb8e06cb77fa0e2710d85f3b2d704a80ae3e249558388", kill_on_drop: false }` [INFO] [stdout] 06e530fcacc9dc92384eb8e06cb77fa0e2710d85f3b2d704a80ae3e249558388