[INFO] cloning repository https://github.com/whjthu/rustlings
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/whjthu/rustlings" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwhjthu%2Frustlings", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwhjthu%2Frustlings'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 644e6f73cf35b240be03f5b7781b3ec7474dec55
[INFO] testing whjthu/rustlings against beta-2025-02-18 for beta-1.86-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwhjthu%2Frustlings" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] [stderr] Updating files:  31% (2961/9412)
Updating files:  32% (3012/9412)
Updating files:  33% (3106/9412)
Updating files:  34% (3201/9412)
Updating files:  35% (3295/9412)
Updating files:  36% (3389/9412)
Updating files:  37% (3483/9412)
Updating files:  38% (3577/9412)
Updating files:  39% (3671/9412)
Updating files:  39% (3688/9412)
Updating files:  40% (3765/9412)
Updating files:  41% (3859/9412)
Updating files:  42% (3954/9412)
Updating files:  42% (4026/9412)
Updating files:  43% (4048/9412)
Updating files:  44% (4142/9412)
Updating files:  45% (4236/9412)
Updating files:  46% (4330/9412)
Updating files:  47% (4424/9412)
Updating files:  48% (4518/9412)
Updating files:  49% (4612/9412)
Updating files:  50% (4706/9412)
Updating files:  51% (4801/9412)
Updating files:  51% (4842/9412)
Updating files:  52% (4895/9412)
Updating files:  53% (4989/9412)
Updating files:  54% (5083/9412)
Updating files:  55% (5177/9412)
Updating files:  56% (5271/9412)
Updating files:  57% (5365/9412)
Updating files:  58% (5459/9412)
Updating files:  59% (5554/9412)
Updating files:  60% (5648/9412)
Updating files:  61% (5742/9412)
Updating files:  62% (5836/9412)
Updating files:  63% (5930/9412)
Updating files:  64% (6024/9412)
Updating files:  65% (6118/9412)
Updating files:  66% (6212/9412)
Updating files:  67% (6307/9412)
Updating files:  68% (6401/9412)
Updating files:  69% (6495/9412)
Updating files:  70% (6589/9412)
Updating files:  71% (6683/9412)
Updating files:  72% (6777/9412)
Updating files:  73% (6871/9412)
Updating files:  74% (6965/9412)
Updating files:  75% (7059/9412)
Updating files:  76% (7154/9412)
Updating files:  77% (7248/9412)
Updating files:  78% (7342/9412)
Updating files:  79% (7436/9412)
Updating files:  80% (7530/9412)
Updating files:  81% (7624/9412)
Updating files:  82% (7718/9412)
Updating files:  83% (7812/9412)
Updating files:  84% (7907/9412)
Updating files:  85% (8001/9412)
Updating files:  86% (8095/9412)
Updating files:  87% (8189/9412)
Updating files:  88% (8283/9412)
Updating files:  88% (8371/9412)
Updating files:  89% (8377/9412)
Updating files:  90% (8471/9412)
Updating files:  91% (8565/9412)
Updating files:  92% (8660/9412)
Updating files:  93% (8754/9412)
Updating files:  94% (8848/9412)
Updating files:  95% (8942/9412)
Updating files:  96% (9036/9412)
Updating files:  97% (9130/9412)
Updating files:  97% (9179/9412)
Updating files:  98% (9224/9412)
Updating files:  99% (9318/9412)
Updating files: 100% (9412/9412)
Updating files: 100% (9412/9412), done.
[INFO] validating manifest of git repo https://github.com/whjthu/rustlings on toolchain beta-2025-02-18
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-02-18" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/whjthu/rustlings
[INFO] finished tweaking git repo https://github.com/whjthu/rustlings
[INFO] tweaked toml for git repo https://github.com/whjthu/rustlings written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/whjthu/rustlings 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-2025-02-18" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-02-18" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5a1e95d178aa46b61ea710e68ad90135c05bcfbc2f0a3aeb03cfc77cd5deec70
[INFO] running `Command { std: "docker" "start" "-a" "5a1e95d178aa46b61ea710e68ad90135c05bcfbc2f0a3aeb03cfc77cd5deec70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5a1e95d178aa46b61ea710e68ad90135c05bcfbc2f0a3aeb03cfc77cd5deec70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a1e95d178aa46b61ea710e68ad90135c05bcfbc2f0a3aeb03cfc77cd5deec70", kill_on_drop: false }`
[INFO] [stdout] 5a1e95d178aa46b61ea710e68ad90135c05bcfbc2f0a3aeb03cfc77cd5deec70
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-02-18" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1e8cbc40ca04a42f37080924f30f4ff6d232d3f3aa22d8714f3831e80ea82369
[INFO] running `Command { std: "docker" "start" "-a" "1e8cbc40ca04a42f37080924f30f4ff6d232d3f3aa22d8714f3831e80ea82369", kill_on_drop: false }`
[INFO] [stderr]    Compiling exercises v0.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `Team` is never constructed
[INFO] [stdout]   --> exercises/11_hashmaps/hashmaps3.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | struct Team {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Team` has a derived impl for the trait `Default`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `build_scores_table` is never used
[INFO] [stdout]   --> exercises/11_hashmaps/hashmaps3.rs:18:4
[INFO] [stdout]    |
[INFO] [stdout] 18 | fn build_scores_table(results: &str) -> HashMap<&str, Team> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `byte_counter` is never used
[INFO] [stdout]  --> exercises/23_conversions/as_ref_mut.rs:9:4
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn byte_counter<T: AsRef<str>>(arg: T) -> usize {
[INFO] [stdout]   |    ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `char_counter` is never used
[INFO] [stdout]   --> exercises/23_conversions/as_ref_mut.rs:15:4
[INFO] [stdout]    |
[INFO] [stdout] 15 | fn char_counter<T: AsRef<str>>(arg: T) -> usize {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `num_sq` is never used
[INFO] [stdout]   --> exercises/23_conversions/as_ref_mut.rs:21:4
[INFO] [stdout]    |
[INFO] [stdout] 21 | fn num_sq<T, U>(arg: &mut T)
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `fill_vec` is never used
[INFO] [stdout]  --> solutions/06_move_semantics/move_semantics2.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn fill_vec(vec: Vec<i32>) -> Vec<i32> {
[INFO] [stdout]   |    ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `byte_counter` is never used
[INFO] [stdout]  --> solutions/23_conversions/as_ref_mut.rs:6:4
[INFO] [stdout]   |
[INFO] [stdout] 6 | fn byte_counter<T: AsRef<str>>(arg: T) -> usize {
[INFO] [stdout]   |    ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `char_counter` is never used
[INFO] [stdout]   --> solutions/23_conversions/as_ref_mut.rs:11:4
[INFO] [stdout]    |
[INFO] [stdout] 11 | fn char_counter<T: AsRef<str>>(arg: T) -> usize {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `num_sq` is never used
[INFO] [stdout]   --> solutions/23_conversions/as_ref_mut.rs:16:4
[INFO] [stdout]    |
[INFO] [stdout] 16 | fn num_sq<T: AsMut<u32>>(arg: &mut T) {
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `vec_loop` is never used
[INFO] [stdout]  --> exercises/05_vecs/vecs2.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn vec_loop(input: &[i32]) -> Vec<i32> {
[INFO] [stdout]   |    ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `vec_map_example` is never used
[INFO] [stdout]   --> exercises/05_vecs/vecs2.rs:13:4
[INFO] [stdout]    |
[INFO] [stdout] 13 | fn vec_map_example(input: &[i32]) -> Vec<i32> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `vec_map` is never used
[INFO] [stdout]   --> exercises/05_vecs/vecs2.rs:20:4
[INFO] [stdout]    |
[INFO] [stdout] 20 | fn vec_map(input: &[i32]) -> Vec<i32> {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Message` is never used
[INFO] [stdout]  --> exercises/08_enums/enums3.rs:1:6
[INFO] [stdout]   |
[INFO] [stdout] 1 | enum Message {
[INFO] [stdout]   |      ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Point` is never constructed
[INFO] [stdout]  --> exercises/08_enums/enums3.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | struct Point {
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `State` is never constructed
[INFO] [stdout]   --> exercises/08_enums/enums3.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | struct State {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `change_color`, `quit`, `echo`, `move_position`, and `process` are never used
[INFO] [stdout]   --> exercises/08_enums/enums3.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | impl State {
[INFO] [stdout]    | ---------- methods in this implementation
[INFO] [stdout] 22 |     fn change_color(&mut self, color: (u8, u8, u8)) {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 26 |     fn quit(&mut self) {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 30 |     fn echo(&mut self, s: String) {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 34 |     fn move_position(&mut self, point: Point) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 38 |     fn process(&mut self, message: Message) {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name` and `age` are never read
[INFO] [stdout]  --> exercises/23_conversions/from_into.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | struct Person {
[INFO] [stdout]   |        ------ fields in this struct
[INFO] [stdout] 8 |     name: String,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 9 |     age: u8,
[INFO] [stdout]   |     ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Person` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `CreationError` is never used
[INFO] [stdout]  --> solutions/13_error_handling/errors4.rs:4:6
[INFO] [stdout]   |
[INFO] [stdout] 4 | enum CreationError {
[INFO] [stdout]   |      ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `PositiveNonzeroInteger` is never constructed
[INFO] [stdout]   --> solutions/13_error_handling/errors4.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | struct PositiveNonzeroInteger(u64);
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> solutions/13_error_handling/errors4.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl PositiveNonzeroInteger {
[INFO] [stdout]    | --------------------------- associated function in this implementation
[INFO] [stdout] 13 |     fn new(value: i64) -> Result<Self, CreationError> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Queue` is never constructed
[INFO] [stdout]  --> exercises/20_threads/threads3.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct Queue {
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> exercises/20_threads/threads3.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 9  | impl Queue {
[INFO] [stdout]    | ---------- associated function in this implementation
[INFO] [stdout] 10 |     fn new() -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `send_tx` is never used
[INFO] [stdout]   --> exercises/20_threads/threads3.rs:19:4
[INFO] [stdout]    |
[INFO] [stdout] 19 | fn send_tx(q: Queue, tx: mpsc::Sender<u32>) {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `animal_habitat` is never used
[INFO] [stdout]  --> exercises/03_if/if3.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn animal_habitat(animal: &str) -> &str {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `fill_vec` is never used
[INFO] [stdout]  --> exercises/06_move_semantics/move_semantics3.rs:2:4
[INFO] [stdout]   |
[INFO] [stdout] 2 | fn fill_vec(mut vec: Vec<i32>) -> Vec<i32> {
[INFO] [stdout]   |    ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `factorial` is never used
[INFO] [stdout]  --> exercises/18_iterators/iterators4.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn factorial(num: u8) -> u64 {
[INFO] [stdout]   |    ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `CreationError` is never used
[INFO] [stdout]  --> exercises/13_error_handling/errors4.rs:4:6
[INFO] [stdout]   |
[INFO] [stdout] 4 | enum CreationError {
[INFO] [stdout]   |      ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `PositiveNonzeroInteger` is never constructed
[INFO] [stdout]   --> exercises/13_error_handling/errors4.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | struct PositiveNonzeroInteger(u64);
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> exercises/13_error_handling/errors4.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl PositiveNonzeroInteger {
[INFO] [stdout]    | --------------------------- associated function in this implementation
[INFO] [stdout] 13 |     fn new(value: i64) -> Result<Self, CreationError> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ColorRegularStruct` is never constructed
[INFO] [stdout]  --> exercises/07_structs/structs1.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct ColorRegularStruct {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ColorTupleStruct` is never constructed
[INFO] [stdout]  --> exercises/07_structs/structs1.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | struct ColorTupleStruct(/* TODO: Add the fields that the test `tuple_structs` expects */u8, u8, u8);
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `UnitStruct` is never constructed
[INFO] [stdout]   --> exercises/07_structs/structs1.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | struct UnitStruct;
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ColorRegularStruct` is never constructed
[INFO] [stdout]  --> solutions/07_structs/structs1.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct ColorRegularStruct {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ColorTupleStruct` is never constructed
[INFO] [stdout]  --> solutions/07_structs/structs1.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | struct ColorTupleStruct(u8, u8, u8);
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `UnitStruct` is never constructed
[INFO] [stdout]   --> solutions/07_structs/structs1.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | struct UnitStruct;
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `maybe_icecream` is never used
[INFO] [stdout]  --> solutions/12_options/options1.rs:5:4
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn maybe_icecream(hour_of_day: u16) -> Option<u16> {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `details` is never used
[INFO] [stdout]   --> exercises/19_smart_pointers/rc1.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 24 | impl Planet {
[INFO] [stdout]    | ----------- method in this implementation
[INFO] [stdout] 25 |     fn details(&self) {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `fill_vec` is never used
[INFO] [stdout]  --> solutions/06_move_semantics/move_semantics3.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn fill_vec(mut vec: Vec<i32>) -> Vec<i32> {
[INFO] [stdout]   |    ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `array_and_vec` is never used
[INFO] [stdout]  --> solutions/05_vecs/vecs1.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn array_and_vec() -> ([i32; 4], Vec<i32>) {
[INFO] [stdout]   |    ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Package` is never constructed
[INFO] [stdout]  --> solutions/07_structs/structs3.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | struct Package {
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `is_international`, and `get_fees` are never used
[INFO] [stdout]   --> solutions/07_structs/structs3.rs:9:8
[INFO] [stdout]    |
[INFO] [stdout] 8  | impl Package {
[INFO] [stdout]    | ------------ associated items in this implementation
[INFO] [stdout] 9  |     fn new(sender_country: String, recipient_country: String, weight_in_grams: u32) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 23 |     fn is_international(&self) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 28 |     fn get_fees(&self, cents_per_gram: u32) -> u32 {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Rectangle` is never constructed
[INFO] [stdout]  --> solutions/17_tests/tests3.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Rectangle {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]  --> solutions/17_tests/tests3.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | impl Rectangle {
[INFO] [stdout]   | -------------- associated function in this implementation
[INFO] [stdout] 7 |     // Don't change this function.
[INFO] [stdout] 8 |     fn new(width: i32, height: i32) -> Self {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `vec_loop` is never used
[INFO] [stdout]  --> solutions/05_vecs/vecs2.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn vec_loop(input: &[i32]) -> Vec<i32> {
[INFO] [stdout]   |    ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `vec_map_example` is never used
[INFO] [stdout]   --> solutions/05_vecs/vecs2.rs:11:4
[INFO] [stdout]    |
[INFO] [stdout] 11 | fn vec_map_example(input: &[i32]) -> Vec<i32> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `vec_map` is never used
[INFO] [stdout]   --> solutions/05_vecs/vecs2.rs:18:4
[INFO] [stdout]    |
[INFO] [stdout] 18 | fn vec_map(input: &[i32]) -> Vec<i32> {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `array_and_vec` is never used
[INFO] [stdout]  --> exercises/05_vecs/vecs1.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn array_and_vec() -> ([i32; 4], Vec<i32>) {
[INFO] [stdout]   |    ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `SomeTrait` is never used
[INFO] [stdout]  --> exercises/15_traits/traits5.rs:1:7
[INFO] [stdout]   |
[INFO] [stdout] 1 | trait SomeTrait {
[INFO] [stdout]   |       ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `OtherTrait` is never used
[INFO] [stdout]  --> exercises/15_traits/traits5.rs:7:7
[INFO] [stdout]   |
[INFO] [stdout] 7 | trait OtherTrait {
[INFO] [stdout]   |       ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SomeStruct` is never constructed
[INFO] [stdout]   --> exercises/15_traits/traits5.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | struct SomeStruct;
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `OtherStruct` is never constructed
[INFO] [stdout]   --> exercises/15_traits/traits5.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 17 | struct OtherStruct;
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `some_func` is never used
[INFO] [stdout]   --> exercises/15_traits/traits5.rs:22:4
[INFO] [stdout]    |
[INFO] [stdout] 22 | fn some_func(item: impl SomeTrait + OtherTrait) -> bool {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `details` is never used
[INFO] [stdout]   --> solutions/19_smart_pointers/rc1.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 24 | impl Planet {
[INFO] [stdout]    | ----------- method in this implementation
[INFO] [stdout] 25 |     fn details(&self) {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `longest` is never used
[INFO] [stdout]  --> solutions/16_lifetimes/lifetimes1.rs:6:4
[INFO] [stdout]   |
[INFO] [stdout] 6 | fn longest<'a>(x: &'a str, y: &'a str) -> &'a str {
[INFO] [stdout]   |    ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `fruit_basket` is never used
[INFO] [stdout]  --> exercises/11_hashmaps/hashmaps1.rs:9:4
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn fruit_basket() -> HashMap<String, u32> {
[INFO] [stdout]   |    ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `calculate_price_of_apples` is never used
[INFO] [stdout]  --> solutions/quizzes/quiz1.rs:7:4
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn calculate_price_of_apples(n_apples: u64) -> u64 {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_even` is never used
[INFO] [stdout]  --> solutions/17_tests/tests1.rs:4:4
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn is_even(n: i64) -> bool {
[INFO] [stdout]   |    ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Wrapper` is never constructed
[INFO] [stdout]  --> exercises/14_generics/generics2.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct Wrapper<T> {
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]  --> exercises/14_generics/generics2.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | impl<T> Wrapper<T> {
[INFO] [stdout]   | ------------------ associated function in this implementation
[INFO] [stdout] 9 |     fn new(value: T) -> Self {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `DivisionError` is never used
[INFO] [stdout]  --> solutions/18_iterators/iterators3.rs:2:6
[INFO] [stdout]   |
[INFO] [stdout] 2 | enum DivisionError {
[INFO] [stdout]   |      ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `longest` is never used
[INFO] [stdout]  --> exercises/16_lifetimes/lifetimes1.rs:7:4
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn longest<'a>(x: &'a str, y: &'a str) -> &'a str {
[INFO] [stdout]   |    ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `divide` is never used
[INFO] [stdout]  --> solutions/18_iterators/iterators3.rs:7:4
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn divide(a: i64, b: i64) -> Result<i64, DivisionError> {
[INFO] [stdout]   |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `result_with_list` is never used
[INFO] [stdout]   --> solutions/18_iterators/iterators3.rs:19:4
[INFO] [stdout]    |
[INFO] [stdout] 19 | fn result_with_list() -> Result<Vec<i64>, DivisionError> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `list_of_results` is never used
[INFO] [stdout]   --> solutions/18_iterators/iterators3.rs:28:4
[INFO] [stdout]    |
[INFO] [stdout] 28 | fn list_of_results() -> Vec<Result<i64, DivisionError>> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `total_cost` is never used
[INFO] [stdout]   --> exercises/13_error_handling/errors2.rs:19:4
[INFO] [stdout]    |
[INFO] [stdout] 19 | fn total_cost(item_quantity: &str) -> Result<i32, ParseIntError> {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Team` is never constructed
[INFO] [stdout]   --> solutions/11_hashmaps/hashmaps3.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | struct Team {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Team` has a derived impl for the trait `Default`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `build_scores_table` is never used
[INFO] [stdout]   --> solutions/11_hashmaps/hashmaps3.rs:18:4
[INFO] [stdout]    |
[INFO] [stdout] 18 | fn build_scores_table(results: &str) -> HashMap<&str, Team> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `trim_me` is never used
[INFO] [stdout]  --> exercises/09_strings/strings3.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn trim_me(input: &str) -> &str {
[INFO] [stdout]   |    ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `compose_me` is never used
[INFO] [stdout]  --> exercises/09_strings/strings3.rs:6:4
[INFO] [stdout]   |
[INFO] [stdout] 6 | fn compose_me(input: &str) -> String {
[INFO] [stdout]   |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `replace_me` is never used
[INFO] [stdout]   --> exercises/09_strings/strings3.rs:11:4
[INFO] [stdout]    |
[INFO] [stdout] 11 | fn replace_me(input: &str) -> String {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `power_of_2` is never used
[INFO] [stdout]  --> exercises/17_tests/tests2.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn power_of_2(n: u8) -> u64 {
[INFO] [stdout]   |    ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `maybe_icecream` is never used
[INFO] [stdout]  --> exercises/12_options/options1.rs:5:4
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn maybe_icecream(hour_of_day: u16) -> Option<u16> {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `fill_vec` is never used
[INFO] [stdout]  --> exercises/06_move_semantics/move_semantics1.rs:2:4
[INFO] [stdout]   |
[INFO] [stdout] 2 | fn fill_vec(vec: Vec<i32>) -> Vec<i32> {
[INFO] [stdout]   |    ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `foo_if_fizz` is never used
[INFO] [stdout]  --> exercises/03_if/if2.rs:2:4
[INFO] [stdout]   |
[INFO] [stdout] 2 | fn foo_if_fizz(fizzish: &str) -> &str {
[INFO] [stdout]   |    ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name` and `age` are never read
[INFO] [stdout]  --> solutions/23_conversions/from_into.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | struct Person {
[INFO] [stdout]   |        ------ fields in this struct
[INFO] [stdout] 8 |     name: String,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 9 |     age: u8,
[INFO] [stdout]   |     ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Person` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Progress` is never used
[INFO] [stdout]   --> solutions/18_iterators/iterators5.rs:10:6
[INFO] [stdout]    |
[INFO] [stdout] 10 | enum Progress {
[INFO] [stdout]    |      ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `count_for` is never used
[INFO] [stdout]   --> solutions/18_iterators/iterators5.rs:16:4
[INFO] [stdout]    |
[INFO] [stdout] 16 | fn count_for(map: &HashMap<String, Progress>, value: Progress) -> usize {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `count_iterator` is never used
[INFO] [stdout]   --> solutions/18_iterators/iterators5.rs:26:4
[INFO] [stdout]    |
[INFO] [stdout] 26 | fn count_iterator(map: &HashMap<String, Progress>, value: Progress) -> usize {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `count_collection_for` is never used
[INFO] [stdout]   --> solutions/18_iterators/iterators5.rs:32:4
[INFO] [stdout]    |
[INFO] [stdout] 32 | fn count_collection_for(collection: &[HashMap<String, Progress>], value: Progress) -> usize {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `count_collection_iterator` is never used
[INFO] [stdout]   --> solutions/18_iterators/iterators5.rs:40:4
[INFO] [stdout]    |
[INFO] [stdout] 40 | fn count_collection_iterator(collection: &[HashMap<String, Progress>], value: Progress) -> usize {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Rectangle` is never constructed
[INFO] [stdout]  --> exercises/17_tests/tests3.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Rectangle {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]  --> exercises/17_tests/tests3.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | impl Rectangle {
[INFO] [stdout]   | -------------- associated function in this implementation
[INFO] [stdout] 7 |     // Don't change this function.
[INFO] [stdout] 8 |     fn new(width: i32, height: i32) -> Self {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `fill_vec` is never used
[INFO] [stdout]  --> solutions/06_move_semantics/move_semantics1.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn fill_vec(vec: Vec<i32>) -> Vec<i32> {
[INFO] [stdout]   |    ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `calculate_price_of_apples` is never used
[INFO] [stdout]   --> exercises/quizzes/quiz1.rs:14:4
[INFO] [stdout]    |
[INFO] [stdout] 14 | fn calculate_price_of_apples(num: i32) -> i32 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `abs_all` is never used
[INFO] [stdout]  --> solutions/19_smart_pointers/cow1.rs:8:4
[INFO] [stdout]   |
[INFO] [stdout] 8 | fn abs_all(input: &mut Cow<[i32]>) {
[INFO] [stdout]   |    ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `bigger` is never used
[INFO] [stdout]  --> exercises/03_if/if1.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn bigger(a: i32, b: i32) -> i32 {
[INFO] [stdout]   |    ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `capitalize_first` is never used
[INFO] [stdout]  --> solutions/18_iterators/iterators2.rs:5:4
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn capitalize_first(input: &str) -> String {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `capitalize_words_vector` is never used
[INFO] [stdout]   --> solutions/18_iterators/iterators2.rs:16:4
[INFO] [stdout]    |
[INFO] [stdout] 16 | fn capitalize_words_vector(words: &[&str]) -> Vec<String> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `capitalize_words_string` is never used
[INFO] [stdout]   --> solutions/18_iterators/iterators2.rs:23:4
[INFO] [stdout]    |
[INFO] [stdout] 23 | fn capitalize_words_string(words: &[&str]) -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `SomeTrait` is never used
[INFO] [stdout]  --> solutions/15_traits/traits5.rs:1:7
[INFO] [stdout]   |
[INFO] [stdout] 1 | trait SomeTrait {
[INFO] [stdout]   |       ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `OtherTrait` is never used
[INFO] [stdout]  --> solutions/15_traits/traits5.rs:7:7
[INFO] [stdout]   |
[INFO] [stdout] 7 | trait OtherTrait {
[INFO] [stdout]   |       ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SomeStruct` is never constructed
[INFO] [stdout]   --> solutions/15_traits/traits5.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | struct SomeStruct;
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `OtherStruct` is never constructed
[INFO] [stdout]   --> solutions/15_traits/traits5.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 17 | struct OtherStruct;
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `some_func` is never used
[INFO] [stdout]   --> solutions/15_traits/traits5.rs:21:4
[INFO] [stdout]    |
[INFO] [stdout] 21 | fn some_func(item: impl SomeTrait + OtherTrait) -> bool {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `trim_me` is never used
[INFO] [stdout]  --> solutions/09_strings/strings3.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn trim_me(input: &str) -> &str {
[INFO] [stdout]   |    ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `compose_me` is never used
[INFO] [stdout]  --> solutions/09_strings/strings3.rs:5:4
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn compose_me(input: &str) -> String {
[INFO] [stdout]   |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `replace_me` is never used
[INFO] [stdout]   --> solutions/09_strings/strings3.rs:12:4
[INFO] [stdout]    |
[INFO] [stdout] 12 | fn replace_me(input: &str) -> String {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `capitalize_first` is never used
[INFO] [stdout]  --> exercises/18_iterators/iterators2.rs:6:4
[INFO] [stdout]   |
[INFO] [stdout] 6 | fn capitalize_first(input: &str) -> String {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `capitalize_words_vector` is never used
[INFO] [stdout]   --> exercises/18_iterators/iterators2.rs:17:4
[INFO] [stdout]    |
[INFO] [stdout] 17 | fn capitalize_words_vector(words: &[&str]) -> Vec<String> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `capitalize_words_string` is never used
[INFO] [stdout]   --> exercises/18_iterators/iterators2.rs:29:4
[INFO] [stdout]    |
[INFO] [stdout] 29 | fn capitalize_words_string(words: &[&str]) -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `CreationError` is never used
[INFO] [stdout]   --> solutions/13_error_handling/errors6.rs:10:6
[INFO] [stdout]    |
[INFO] [stdout] 10 | enum CreationError {
[INFO] [stdout]    |      ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `ParsePosNonzeroError` is never used
[INFO] [stdout]   --> solutions/13_error_handling/errors6.rs:17:6
[INFO] [stdout]    |
[INFO] [stdout] 17 | enum ParsePosNonzeroError {
[INFO] [stdout]    |      ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `from_creation` and `from_parseint` are never used
[INFO] [stdout]   --> solutions/13_error_handling/errors6.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | impl ParsePosNonzeroError {
[INFO] [stdout]    | ------------------------- associated functions in this implementation
[INFO] [stdout] 23 |     fn from_creation(err: CreationError) -> Self {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 27 |     fn from_parseint(err: ParseIntError) -> Self {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `PositiveNonzeroInteger` is never constructed
[INFO] [stdout]   --> solutions/13_error_handling/errors6.rs:33:8
[INFO] [stdout]    |
[INFO] [stdout] 33 | struct PositiveNonzeroInteger(u64);
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `new` and `parse` are never used
[INFO] [stdout]   --> solutions/13_error_handling/errors6.rs:36:8
[INFO] [stdout]    |
[INFO] [stdout] 35 | impl PositiveNonzeroInteger {
[INFO] [stdout]    | --------------------------- associated functions in this implementation
[INFO] [stdout] 36 |     fn new(value: i64) -> Result<Self, CreationError> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 44 |     fn parse(s: &str) -> Result<Self, ParsePosNonzeroError> {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `total_cost` is never used
[INFO] [stdout]   --> solutions/13_error_handling/errors2.rs:20:4
[INFO] [stdout]    |
[INFO] [stdout] 20 | fn total_cost(item_quantity: &str) -> Result<i32, ParseIntError> {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `animal_habitat` is never used
[INFO] [stdout]  --> solutions/03_if/if3.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn animal_habitat(animal: &str) -> &str {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: linking with `cc` failed: exit status: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note:  "cc" "-m64" "/tmp/rustcy89Wd6/symbols.o" "<2 object files omitted>" "-Wl,--as-needed" "-Wl,-Bstatic" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib/{libstd-*,libpanic_unwind-*,libobject-*,libmemchr-*,libaddr2line-*,libgimli-*,librustc_demangle-*,libstd_detect-*,libhashbrown-*,librustc_std_workspace_alloc-*,libminiz_oxide-*,libadler2-*,libunwind-*,libcfg_if-*,liblibc-*,liballoc-*,librustc_std_workspace_core-*,libcore-*,libcompiler_builtins-*}.rlib" "-Wl,-Bdynamic" "-lgcc_s" "-lutil" "-lrt" "-lpthread" "-lm" "-ldl" "-lc" "-Wl,--eh-frame-hdr" "-Wl,-z,noexecstack" "-L" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/opt/rustwide/target/debug/deps/strings1-55c9af4d23ae81d5" "-Wl,--gc-sections" "-pie" "-Wl,-z,relro,-z,now" "-nodefaultlibs"
[INFO] [stdout]   = note: some arguments are omitted. use `--verbose` to show all linker arguments
[INFO] [stdout]   = note: /usr/bin/ld: final link failed: No space left on device
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `foo_if_fizz` is never used
[INFO] [stdout]  --> solutions/03_if/if2.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn foo_if_fizz(fizzish: &str) -> &str {
[INFO] [stdout]   |    ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `exercises` (bin "strings1") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: enum `Fruit` is never used
[INFO] [stdout]   --> exercises/11_hashmaps/hashmaps2.rs:13:6
[INFO] [stdout]    |
[INFO] [stdout] 13 | enum Fruit {
[INFO] [stdout]    |      ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `fruit_basket` is never used
[INFO] [stdout]   --> exercises/11_hashmaps/hashmaps2.rs:21:4
[INFO] [stdout]    |
[INFO] [stdout] 21 | fn fruit_basket(basket: &mut HashMap<Fruit, u32>) {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: linking with `cc` failed: exit status: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note:  "cc" "-m64" "/tmp/rustcm6CBMM/symbols.o" "<2 object files omitted>" "-Wl,--as-needed" "-Wl,-Bstatic" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib/{libstd-*,libpanic_unwind-*,libobject-*,libmemchr-*,libaddr2line-*,libgimli-*,librustc_demangle-*,libstd_detect-*,libhashbrown-*,librustc_std_workspace_alloc-*,libminiz_oxide-*,libadler2-*,libunwind-*,libcfg_if-*,liblibc-*,liballoc-*,librustc_std_workspace_core-*,libcore-*,libcompiler_builtins-*}.rlib" "-Wl,-Bdynamic" "-lgcc_s" "-lutil" "-lrt" "-lpthread" "-lm" "-ldl" "-lc" "-Wl,--eh-frame-hdr" "-Wl,-z,noexecstack" "-L" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/opt/rustwide/target/debug/deps/if2_sol-6469a62aeb71b2e3" "-Wl,--gc-sections" "-pie" "-Wl,-z,relro,-z,now" "-nodefaultlibs"
[INFO] [stdout]   = note: some arguments are omitted. use `--verbose` to show all linker arguments
[INFO] [stdout]   = note: /usr/bin/ld: final link failed: No space left on device
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `exercises` (bin "if2_sol") due to 1 previous error; 1 warning emitted
[INFO] [stdout] error: linking with `cc` failed: exit status: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note:  "cc" "-m64" "/tmp/rustcP8MsWr/symbols.o" "<2 object files omitted>" "-Wl,--as-needed" "-Wl,-Bstatic" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib/{libstd-*,libpanic_unwind-*,libobject-*,libmemchr-*,libaddr2line-*,libgimli-*,librustc_demangle-*,libstd_detect-*,libhashbrown-*,librustc_std_workspace_alloc-*,libminiz_oxide-*,libadler2-*,libunwind-*,libcfg_if-*,liblibc-*,liballoc-*,librustc_std_workspace_core-*,libcore-*,libcompiler_builtins-*}.rlib" "-Wl,-Bdynamic" "-lgcc_s" "-lutil" "-lrt" "-lpthread" "-lm" "-ldl" "-lc" "-Wl,--eh-frame-hdr" "-Wl,-z,noexecstack" "-L" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/opt/rustwide/target/debug/deps/if3_sol-3cf0cc3db8f2aa7f" "-Wl,--gc-sections" "-pie" "-Wl,-z,relro,-z,now" "-nodefaultlibs"
[INFO] [stdout]   = note: some arguments are omitted. use `--verbose` to show all linker arguments
[INFO] [stdout]   = note: /usr/bin/ld: final link failed: No space left on device
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `exercises` (bin "if3_sol") due to 1 previous error; 1 warning emitted
[INFO] [stdout] error: linking with `cc` failed: exit status: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note:  "cc" "-m64" "/tmp/rustcUZsKqo/symbols.o" "<2 object files omitted>" "-Wl,--as-needed" "-Wl,-Bstatic" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib/{libstd-*,libpanic_unwind-*,libobject-*,libmemchr-*,libaddr2line-*,libgimli-*,librustc_demangle-*,libstd_detect-*,libhashbrown-*,librustc_std_workspace_alloc-*,libminiz_oxide-*,libadler2-*,libunwind-*,libcfg_if-*,liblibc-*,liballoc-*,librustc_std_workspace_core-*,libcore-*,libcompiler_builtins-*}.rlib" "-Wl,-Bdynamic" "-lgcc_s" "-lutil" "-lrt" "-lpthread" "-lm" "-ldl" "-lc" "-Wl,--eh-frame-hdr" "-Wl,-z,noexecstack" "-L" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/opt/rustwide/target/debug/deps/modules1_sol-130e1e80c2b83977" "-Wl,--gc-sections" "-pie" "-Wl,-z,relro,-z,now" "-nodefaultlibs"
[INFO] [stdout]   = note: some arguments are omitted. use `--verbose` to show all linker arguments
[INFO] [stdout]   = note: /usr/bin/ld: final link failed: No space left on device
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `exercises` (bin "modules1_sol") due to 1 previous error
[INFO] [stdout] error: linking with `cc` failed: exit status: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note:  "cc" "-m64" "/tmp/rustcg6ubsx/symbols.o" "<2 object files omitted>" "-Wl,--as-needed" "-Wl,-Bstatic" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib/{libstd-*,libpanic_unwind-*,libobject-*,libmemchr-*,libaddr2line-*,libgimli-*,librustc_demangle-*,libstd_detect-*,libhashbrown-*,librustc_std_workspace_alloc-*,libminiz_oxide-*,libadler2-*,libunwind-*,libcfg_if-*,liblibc-*,liballoc-*,librustc_std_workspace_core-*,libcore-*,libcompiler_builtins-*}.rlib" "-Wl,-Bdynamic" "-lgcc_s" "-lutil" "-lrt" "-lpthread" "-lm" "-ldl" "-lc" "-Wl,--eh-frame-hdr" "-Wl,-z,noexecstack" "-L" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/opt/rustwide/target/debug/deps/hashmaps2-36441de52144f438" "-Wl,--gc-sections" "-pie" "-Wl,-z,relro,-z,now" "-nodefaultlibs"
[INFO] [stdout]   = note: some arguments are omitted. use `--verbose` to show all linker arguments
[INFO] [stdout]   = note: /usr/bin/ld: final link failed: No space left on device
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `exercises` (bin "hashmaps2") due to 1 previous error; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "1e8cbc40ca04a42f37080924f30f4ff6d232d3f3aa22d8714f3831e80ea82369", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e8cbc40ca04a42f37080924f30f4ff6d232d3f3aa22d8714f3831e80ea82369", kill_on_drop: false }`
[INFO] [stdout] 1e8cbc40ca04a42f37080924f30f4ff6d232d3f3aa22d8714f3831e80ea82369