[INFO] cloning repository https://github.com/Tofan-afk/fork-of-git-exercises
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Tofan-afk/fork-of-git-exercises" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTofan-afk%2Ffork-of-git-exercises", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTofan-afk%2Ffork-of-git-exercises'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b722894e84c286c094875f100eea07a91b9e1450
[INFO] checking Tofan-afk/fork-of-git-exercises against 3154cc1a3e6424e44f438a95007d043ed5ceaaf6 for pr-133502-30
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTofan-afk%2Ffork-of-git-exercises" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Tofan-afk/fork-of-git-exercises
[INFO] finished tweaking git repo https://github.com/Tofan-afk/fork-of-git-exercises
[INFO] tweaked toml for git repo https://github.com/Tofan-afk/fork-of-git-exercises written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Tofan-afk/fork-of-git-exercises on toolchain 3154cc1a3e6424e44f438a95007d043ed5ceaaf6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3154cc1a3e6424e44f438a95007d043ed5ceaaf6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Tofan-afk/fork-of-git-exercises 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" "+3154cc1a3e6424e44f438a95007d043ed5ceaaf6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 98e236aee17c83ec25cb47a6ae3363c9b1f2dc0fb342169fdae09492aaa0be0a
[INFO] running `Command { std: "docker" "start" "98e236aee17c83ec25cb47a6ae3363c9b1f2dc0fb342169fdae09492aaa0be0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "98e236aee17c83ec25cb47a6ae3363c9b1f2dc0fb342169fdae09492aaa0be0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "98e236aee17c83ec25cb47a6ae3363c9b1f2dc0fb342169fdae09492aaa0be0a" "/opt/rustwide/cargo-home/bin/cargo" "+3154cc1a3e6424e44f438a95007d043ed5ceaaf6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "98e236aee17c83ec25cb47a6ae3363c9b1f2dc0fb342169fdae09492aaa0be0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-w" "/opt/rustwide/workdir" "--user" "0:0" "98e236aee17c83ec25cb47a6ae3363c9b1f2dc0fb342169fdae09492aaa0be0a" "/opt/rustwide/cargo-home/bin/cargo" "+3154cc1a3e6424e44f438a95007d043ed5ceaaf6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-ident v1.0.20
[INFO] [stderr]     Checking common v0.1.0 (/opt/rustwide/workdir/helpers/common)
[INFO] [stderr]     Checking outro_02 v0.1.0 (/opt/rustwide/workdir/exercises/03_ticket_v1/12_outro)
[INFO] [stderr]     Checking outro_03 v0.1.0 (/opt/rustwide/workdir/exercises/04_traits/14_outro)
[INFO] [stderr]     Checking parking_lot_core v0.9.12
[INFO] [stderr]     Checking mio v1.2.0
[INFO] [stderr]     Checking signal-hook-registry v1.4.6
[INFO] [stderr]     Checking socket2 v0.6.3
[INFO] [stderr]    Compiling anyhow v1.0.102
[INFO] [stderr]     Checking error_trait v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/09_error_trait)
[INFO] [stderr]     Checking variants_with_data v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/03_variants_with_data)
[INFO] [stdout] warning: variants `InProgress` and `Done` are never constructed
[INFO] [stdout]   --> exercises/05_ticket_v2/09_error_trait/src/lib.rs:48:5
[INFO] [stdout]    |
[INFO] [stdout] 46 | enum Status {
[INFO] [stdout]    |      ------ variants in this enum
[INFO] [stdout] 47 |     ToDo,
[INFO] [stdout] 48 |     InProgress { assigned_to: String },
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 49 |     Done,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Status` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling proc-macro2 v1.0.106
[INFO] [stderr]     Checking str_slice v0.1.0 (/opt/rustwide/workdir/exercises/04_traits/06_str_slice)
[INFO] [stderr]     Checking enum_ v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/01_enum)
[INFO] [stderr]     Checking fallibility v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/06_fallibility)
[INFO] [stdout] warning: associated items `new`, `title`, `description`, and `status` are never used
[INFO] [stdout]   --> exercises/05_ticket_v2/01_enum/src/lib.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 21 | impl Ticket {
[INFO] [stdout]    | ----------- associated items in this implementation
[INFO] [stdout] 22 |     pub fn new(title: String, description: String, status: Status) -> Ticket {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 46 |     pub fn title(&self) -> &String {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 50 |     pub fn description(&self) -> &String {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 54 |     pub fn status(&self) -> &Status {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking unwrap v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/07_unwrap)
[INFO] [stderr]     Checking nullability v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/05_nullability)
[INFO] [stdout] warning: variants `InProgress` and `Done` are never constructed
[INFO] [stdout]   --> exercises/05_ticket_v2/06_fallibility/src/lib.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | enum Status {
[INFO] [stdout]    |      ------ variants in this enum
[INFO] [stdout] 13 |     ToDo,
[INFO] [stdout] 14 |     InProgress { assigned_to: String },
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 15 |     Done,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Status` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking parking_lot v0.12.5
[INFO] [stderr]     Checking setters v0.1.0 (/opt/rustwide/workdir/exercises/03_ticket_v1/07_setters)
[INFO] [stdout] warning: variants `InProgress` and `Done` are never constructed
[INFO] [stdout]   --> exercises/05_ticket_v2/07_unwrap/src/lib.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 25 | enum Status {
[INFO] [stdout]    |      ------ variants in this enum
[INFO] [stdout] 26 |     ToDo,
[INFO] [stdout] 27 |     InProgress { assigned_to: String },
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 28 |     Done,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Status` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking error_enums v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/08_error_enums)
[INFO] [stderr]     Checking validation v0.1.0 (/opt/rustwide/workdir/exercises/03_ticket_v1/02_validation)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> exercises/05_ticket_v2/08_error_enums/src/lib.rs:7:22
[INFO] [stdout]   |
[INFO] [stdout] 7 |     DescriptionError(String),
[INFO] [stdout]   |     ---------------- ^^^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `TicketNewError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 7 -     DescriptionError(String),
[INFO] [stdout] 7 +     DescriptionError(()),
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `InProgress` and `Done` are never constructed
[INFO] [stdout]   --> exercises/05_ticket_v2/08_error_enums/src/lib.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 32 | enum Status {
[INFO] [stdout]    |      ------ variants in this enum
[INFO] [stdout] 33 |     ToDo,
[INFO] [stdout] 34 |     InProgress { assigned_to: String },
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 35 |     Done,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Status` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking drop v0.1.0 (/opt/rustwide/workdir/exercises/04_traits/13_drop)
[INFO] [stderr]     Checking heap v0.1.0 (/opt/rustwide/workdir/exercises/03_ticket_v1/09_heap)
[INFO] [stderr]     Checking intro_02 v0.1.0 (/opt/rustwide/workdir/exercises/03_ticket_v1/00_intro)
[INFO] [stderr]     Checking deps v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/11_dependencies)
[INFO] [stdout] warning: unused variable: `bomb`
[INFO] [stdout]   --> exercises/04_traits/13_drop/src/lib.rs:34:13
[INFO] [stdout]    |
[INFO] [stdout] 34 |         let bomb = DropBomb::new();
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_bomb`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking threads v0.1.0 (/opt/rustwide/workdir/exercises/07_threads/01_threads)
[INFO] [stdout] warning: fields `title`, `description`, and `status` are never read
[INFO] [stdout]  --> exercises/03_ticket_v1/09_heap/src/lib.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Ticket {
[INFO] [stdout]   |            ------ fields in this struct
[INFO] [stdout] 2 |     title: String,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 3 |     description: String,
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 4 |     status: String,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking for_ v0.1.0 (/opt/rustwide/workdir/exercises/02_basic_calculator/07_for)
[INFO] [stdout] warning: unused import: `anyhow::Error`
[INFO] [stdout]  --> exercises/05_ticket_v2/11_dependencies/src/lib.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use anyhow::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking trait_bounds v0.1.0 (/opt/rustwide/workdir/exercises/04_traits/05_trait_bounds)
[INFO] [stderr]     Checking intro_07 v0.1.0 (/opt/rustwide/workdir/exercises/07_threads/00_intro)
[INFO] [stderr]     Checking scoped_threads v0.1.0 (/opt/rustwide/workdir/exercises/07_threads/04_scoped_threads)
[INFO] [stdout] warning: unused import: `anyhow::Error`
[INFO] [stdout]  --> exercises/05_ticket_v2/11_dependencies/src/lib.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use anyhow::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::thread`
[INFO] [stdout]   --> exercises/07_threads/01_threads/src/lib.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use std::thread;
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking copy v0.1.0 (/opt/rustwide/workdir/exercises/04_traits/12_copy)
[INFO] [stderr]     Checking as_cast v0.1.0 (/opt/rustwide/workdir/exercises/02_basic_calculator/10_as_casting)
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]  --> exercises/07_threads/04_scoped_threads/src/lib.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn sum(v: Vec<i32>) -> i32 {
[INFO] [stdout]   |            ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]   --> exercises/07_threads/01_threads/src/lib.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub fn sum(v: Vec<i32>) -> i32 {
[INFO] [stdout]    |            ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking packages v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/10_packages)
[INFO] [stdout] warning: function `intro` is never used
[INFO] [stdout]  --> exercises/07_threads/00_intro/src/lib.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn intro() -> &'static str {
[INFO] [stdout]   |    ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking references_in_memory v0.1.0 (/opt/rustwide/workdir/exercises/03_ticket_v1/10_references_in_memory)
[INFO] [stderr]     Checking sized v0.1.0 (/opt/rustwide/workdir/exercises/04_traits/08_sized)
[INFO] [stderr]     Checking derives v0.1.0 (/opt/rustwide/workdir/exercises/04_traits/04_derive)
[INFO] [stderr]     Checking integers v0.1.0 (/opt/rustwide/workdir/exercises/02_basic_calculator/01_integers)
[INFO] [stderr]     Checking modules v0.1.0 (/opt/rustwide/workdir/exercises/03_ticket_v1/03_modules)
[INFO] [stdout] warning: struct `Ticket` is never constructed
[INFO] [stdout]   --> exercises/04_traits/04_derive/src/lib.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | struct Ticket {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking while_ v0.1.0 (/opt/rustwide/workdir/exercises/02_basic_calculator/06_while)
[INFO] [stderr]     Checking orphan v0.1.0 (/opt/rustwide/workdir/exercises/04_traits/02_orphan_rule)
[INFO] [stderr]     Checking if_let v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/04_if_let)
[INFO] [stdout] warning: fields `title`, `description`, and `status` are never read
[INFO] [stdout]  --> exercises/03_ticket_v1/10_references_in_memory/src/lib.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Ticket {
[INFO] [stdout]   |            ------ fields in this struct
[INFO] [stdout] 2 |     title: String,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 3 |     description: String,
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 4 |     status: String,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking intro_03 v0.1.0 (/opt/rustwide/workdir/exercises/04_traits/00_intro)
[INFO] [stdout] warning: enum `Shape` is never used
[INFO] [stdout]  --> exercises/05_ticket_v2/04_if_let/src/lib.rs:1:6
[INFO] [stdout]   |
[INFO] [stdout] 1 | enum Shape {
[INFO] [stdout]   |      ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `radius` and `radius2` are never used
[INFO] [stdout]   --> exercises/05_ticket_v2/04_if_let/src/lib.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout]  7 | impl Shape {
[INFO] [stdout]    | ---------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 10 |     pub fn radius(&self) -> f64 {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 18 |     pub fn radius2(&self) -> f64 {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking overflow v0.1.0 (/opt/rustwide/workdir/exercises/02_basic_calculator/08_overflow)
[INFO] [stdout] warning: enum `TicketNewError` is never used
[INFO] [stdout]  --> exercises/05_ticket_v2/09_error_trait/src/lib.rs:8:6
[INFO] [stdout]   |
[INFO] [stdout] 8 | enum TicketNewError {
[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 `easy_ticket` is never used
[INFO] [stdout]   --> exercises/05_ticket_v2/09_error_trait/src/lib.rs:28:4
[INFO] [stdout]    |
[INFO] [stdout] 28 | fn easy_ticket(title: String, description: String, status: Status) -> Ticket {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Ticket` is never constructed
[INFO] [stdout]   --> exercises/05_ticket_v2/09_error_trait/src/lib.rs:39:8
[INFO] [stdout]    |
[INFO] [stdout] 39 | struct Ticket {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Status` is never used
[INFO] [stdout]   --> exercises/05_ticket_v2/09_error_trait/src/lib.rs:46:6
[INFO] [stdout]    |
[INFO] [stdout] 46 | enum Status {
[INFO] [stdout]    |      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> exercises/05_ticket_v2/09_error_trait/src/lib.rs:53:12
[INFO] [stdout]    |
[INFO] [stdout] 52 | impl Ticket {
[INFO] [stdout]    | ----------- associated function in this implementation
[INFO] [stdout] 53 |     pub fn new(
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking stack v0.1.0 (/opt/rustwide/workdir/exercises/03_ticket_v1/08_stack)
[INFO] [stderr]     Checking intro_08 v0.1.0 (/opt/rustwide/workdir/exercises/08_futures/00_intro)
[INFO] [stderr]     Checking outro_04 v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/15_outro)
[INFO] [stdout] warning: struct `Ticket` is never constructed
[INFO] [stdout]  --> exercises/05_ticket_v2/01_enum/src/lib.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | struct Ticket {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Status` is never used
[INFO] [stdout]   --> exercises/05_ticket_v2/01_enum/src/lib.rs:14:6
[INFO] [stdout]    |
[INFO] [stdout] 14 | enum Status {
[INFO] [stdout]    |      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `title`, `description`, and `status` are never used
[INFO] [stdout]   --> exercises/05_ticket_v2/01_enum/src/lib.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 21 | impl Ticket {
[INFO] [stdout]    | ----------- associated items in this implementation
[INFO] [stdout] 22 |     pub fn new(title: String, description: String, status: Status) -> Ticket {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 46 |     pub fn title(&self) -> &String {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 50 |     pub fn description(&self) -> &String {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 54 |     pub fn status(&self) -> &Status {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Ticket` is never constructed
[INFO] [stdout]  --> exercises/05_ticket_v2/06_fallibility/src/lib.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Ticket {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Status` is never used
[INFO] [stdout]   --> exercises/05_ticket_v2/06_fallibility/src/lib.rs:12:6
[INFO] [stdout]    |
[INFO] [stdout] 12 | enum Status {
[INFO] [stdout]    |      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> exercises/05_ticket_v2/06_fallibility/src/lib.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 18 | impl Ticket {
[INFO] [stdout]    | ----------- associated function in this implementation
[INFO] [stdout] 19 |     pub fn new(title: String, description: String, status: Status) -> Result<Ticket, String> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking variables v0.1.0 (/opt/rustwide/workdir/exercises/02_basic_calculator/02_variables)
[INFO] [stderr]     Checking panics v0.1.0 (/opt/rustwide/workdir/exercises/02_basic_calculator/04_panics)
[INFO] [stderr]     Checking slice v0.1.0 (/opt/rustwide/workdir/exercises/06_ticket_management/10_slices)
[INFO] [stderr]     Checking visibility v0.1.0 (/opt/rustwide/workdir/exercises/03_ticket_v1/04_visibility)
[INFO] [stdout] warning: struct `Ticket` is never constructed
[INFO] [stdout]  --> exercises/03_ticket_v1/04_visibility/src/lib.rs:2:16
[INFO] [stdout]   |
[INFO] [stdout] 2 |     pub struct Ticket {
[INFO] [stdout]   |                ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]  --> exercises/03_ticket_v1/04_visibility/src/lib.rs:9:16
[INFO] [stdout]   |
[INFO] [stdout] 8 |     impl Ticket {
[INFO] [stdout]   |     ----------- associated function in this implementation
[INFO] [stdout] 9 |         pub fn new(title: String, description: String, status: String) -> Ticket {
[INFO] [stdout]   |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking sync v0.1.0 (/opt/rustwide/workdir/exercises/07_threads/14_sync)
[INFO] [stdout] warning: function `easy_ticket` is never used
[INFO] [stdout]  --> exercises/05_ticket_v2/07_unwrap/src/lib.rs:4:4
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn easy_ticket(title: String, description: String, status: Status) -> Ticket {
[INFO] [stdout]   |    ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Ticket` is never constructed
[INFO] [stdout]   --> exercises/05_ticket_v2/07_unwrap/src/lib.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | struct Ticket {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Status` is never used
[INFO] [stdout]   --> exercises/05_ticket_v2/07_unwrap/src/lib.rs:25:6
[INFO] [stdout]    |
[INFO] [stdout] 25 | enum Status {
[INFO] [stdout]    |      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> exercises/05_ticket_v2/07_unwrap/src/lib.rs:32:12
[INFO] [stdout]    |
[INFO] [stdout] 31 | impl Ticket {
[INFO] [stdout]    | ----------- associated function in this implementation
[INFO] [stdout] 32 |     pub fn new(title: String, description: String, status: Status) -> Result<Ticket, String> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking destructor v0.1.0 (/opt/rustwide/workdir/exercises/03_ticket_v1/11_destructor)
[INFO] [stderr]     Checking intro_01 v0.1.0 (/opt/rustwide/workdir/exercises/02_basic_calculator/00_intro)
[INFO] [stderr]     Checking leaking v0.1.0 (/opt/rustwide/workdir/exercises/07_threads/03_leak)
[INFO] [stderr]     Checking trait_ v0.1.0 (/opt/rustwide/workdir/exercises/04_traits/01_trait)
[INFO] [stdout] warning: unused import: `std::thread`
[INFO] [stdout]  --> exercises/07_threads/03_leak/src/lib.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::thread;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking intro_05 v0.1.0 (/opt/rustwide/workdir/exercises/06_ticket_management/00_intro)
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]  --> exercises/07_threads/03_leak/src/lib.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn sum(v: Vec<i32>) -> i32 {
[INFO] [stdout]   |            ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking saturating v0.1.0 (/opt/rustwide/workdir/exercises/02_basic_calculator/09_saturating)
[INFO] [stdout] warning: function `outro` is never used
[INFO] [stdout]  --> exercises/07_threads/14_sync/src/lib.rs:2:4
[INFO] [stdout]   |
[INFO] [stdout] 2 | fn outro() -> &'static str {
[INFO] [stdout]   |    ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Ticket` is never constructed
[INFO] [stdout]  --> exercises/05_ticket_v2/05_nullability/src/lib.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct Ticket {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Status` is never used
[INFO] [stdout]   --> exercises/05_ticket_v2/05_nullability/src/lib.rs:11:6
[INFO] [stdout]    |
[INFO] [stdout] 11 | enum Status {
[INFO] [stdout]    |      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `assigned_to` are never used
[INFO] [stdout]   --> exercises/05_ticket_v2/05_nullability/src/lib.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | impl Ticket {
[INFO] [stdout]    | ----------- associated items in this implementation
[INFO] [stdout] 18 |     pub fn new(title: String, description: String, status: Status) -> Ticket {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 38 |     pub fn assigned_to(&self) -> Option<&String> {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking arrays v0.1.0 (/opt/rustwide/workdir/exercises/06_ticket_management/01_arrays)
[INFO] [stderr]     Checking ownership v0.1.0 (/opt/rustwide/workdir/exercises/03_ticket_v1/06_ownership)
[INFO] [stderr]     Checking static v0.1.0 (/opt/rustwide/workdir/exercises/07_threads/02_static)
[INFO] [stderr]     Checking deref v0.1.0 (/opt/rustwide/workdir/exercises/04_traits/07_deref)
[INFO] [stderr]     Checking match_ v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/02_match)
[INFO] [stderr]     Checking welcome_00 v0.1.0 (/opt/rustwide/workdir/exercises/01_intro/00_welcome)
[INFO] [stderr]     Checking syntax v0.1.0 (/opt/rustwide/workdir/exercises/01_intro/01_syntax)
[INFO] [stdout] warning: function `intro` is never used
[INFO] [stdout]  --> exercises/06_ticket_management/00_intro/src/lib.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn intro() -> &'static str {
[INFO] [stdout]   |    ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `status` is never read
[INFO] [stdout]   --> exercises/04_traits/07_deref/src/lib.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout]  7 | pub struct Ticket {
[INFO] [stdout]    |            ------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 10 |     status: String,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking encapsulation v0.1.0 (/opt/rustwide/workdir/exercises/03_ticket_v1/05_encapsulation)
[INFO] [stderr]     Checking factorial v0.1.0 (/opt/rustwide/workdir/exercises/02_basic_calculator/05_factorial)
[INFO] [stdout] warning: unused import: `std::thread`
[INFO] [stdout]  --> exercises/07_threads/02_static/src/lib.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::thread;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking if_else v0.1.0 (/opt/rustwide/workdir/exercises/02_basic_calculator/03_if_else)
[INFO] [stderr]     Checking from v0.1.0 (/opt/rustwide/workdir/exercises/04_traits/09_from)
[INFO] [stdout] warning: unused variable: `slice`
[INFO] [stdout]  --> exercises/07_threads/02_static/src/lib.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn sum(slice: &'static [i32]) -> i32 {
[INFO] [stdout]   |            ^^^^^ help: if this is intentional, prefix it with an underscore: `_slice`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking tryfrom v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/13_try_from)
[INFO] [stdout] warning: unused variable: `wrapping`
[INFO] [stdout]   --> exercises/04_traits/09_from/src/lib.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |     let wrapping: WrappingU32 = 42.into();
[INFO] [stdout]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_wrapping`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `wrapping`
[INFO] [stdout]   --> exercises/04_traits/09_from/src/lib.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |     let wrapping = WrappingU32::from(42);
[INFO] [stdout]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_wrapping`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `value` is never read
[INFO] [stdout]  --> exercises/04_traits/09_from/src/lib.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct WrappingU32 {
[INFO] [stdout]   |            ----------- field in this struct
[INFO] [stdout] 4 |     value: u32,
[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 `example` is never used
[INFO] [stdout]   --> exercises/04_traits/09_from/src/lib.rs:13:4
[INFO] [stdout]    |
[INFO] [stdout] 13 | fn example() {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Status` is never used
[INFO] [stdout]  --> exercises/05_ticket_v2/13_try_from/src/lib.rs:5:6
[INFO] [stdout]   |
[INFO] [stdout] 5 | enum Status {
[INFO] [stdout]   |      ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling quote v1.0.45
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]  --> exercises/07_threads/04_scoped_threads/src/lib.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn sum(v: Vec<i32>) -> i32 {
[INFO] [stdout]   |            ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking struct_ v0.1.0 (/opt/rustwide/workdir/exercises/03_ticket_v1/01_struct)
[INFO] [stderr]     Checking resizing v0.1.0 (/opt/rustwide/workdir/exercises/06_ticket_management/03_resizing)
[INFO] [stderr]     Checking vec v0.1.0 (/opt/rustwide/workdir/exercises/06_ticket_management/02_vec)
[INFO] [stderr]     Checking interior_mutability v0.1.0 (/opt/rustwide/workdir/exercises/07_threads/06_interior_mutability)
[INFO] [stderr]     Checking mut_slice v0.1.0 (/opt/rustwide/workdir/exercises/06_ticket_management/11_mutable_slices)
[INFO] [stderr]     Checking intro_04 v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/00_intro)
[INFO] [stderr]     Checking overloading v0.1.0 (/opt/rustwide/workdir/exercises/04_traits/03_operator_overloading)
[INFO] [stdout] warning: function `intro` is never used
[INFO] [stdout]  --> exercises/05_ticket_v2/00_intro/src/lib.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn intro() -> &'static str {
[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 `squared` is never used
[INFO] [stdout]  --> exercises/06_ticket_management/11_mutable_slices/src/lib.rs:4:4
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn squared(slice: &mut [i32]) {
[INFO] [stdout]   |    ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected type, found `"not yet implemented"`
[INFO] [stdout]  --> exercises/07_threads/06_interior_mutability/src/lib.rs:9:14
[INFO] [stdout]   |
[INFO] [stdout] 9 |     counter: todo!(),
[INFO] [stdout]   |              ^^^^^^^
[INFO] [stdout]   |              |
[INFO] [stdout]   |              expected type
[INFO] [stdout]   |              in this macro invocation
[INFO] [stdout]   |              this macro call doesn't expand to a type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected type, found `"not yet implemented"`
[INFO] [stdout]   --> exercises/07_threads/06_interior_mutability/src/lib.rs:13:35
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub fn new(value: T, counter: todo!()) -> Self {
[INFO] [stdout]    |                                   ^^^^^^^
[INFO] [stdout]    |                                   |
[INFO] [stdout]    |                                   expected type
[INFO] [stdout]    |                                   in this macro invocation
[INFO] [stdout]    |                                   this macro call doesn't expand to a type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cell::RefCell`
[INFO] [stdout]  --> exercises/07_threads/06_interior_mutability/src/lib.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::cell::RefCell;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]  --> exercises/07_threads/06_interior_mutability/src/lib.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::rc::Rc;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `interior_mutability` (lib) due to 2 previous errors; 2 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: field `border` is never read
[INFO] [stdout]  --> exercises/05_ticket_v2/04_if_let/src/lib.rs:3:14
[INFO] [stdout]   |
[INFO] [stdout] 3 |     Square { border: f64 },
[INFO] [stdout]   |     ------   ^^^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `width` and `height` are never read
[INFO] [stdout]  --> exercises/05_ticket_v2/04_if_let/src/lib.rs:4:17
[INFO] [stdout]   |
[INFO] [stdout] 4 |     Rectangle { width: f64, height: f64 },
[INFO] [stdout]   |     ---------   ^^^^^       ^^^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     fields in this variant
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `radius2` is never used
[INFO] [stdout]   --> exercises/05_ticket_v2/04_if_let/src/lib.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout]  7 | impl Shape {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 18 |     pub fn radius2(&self) -> f64 {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Ticket` is never constructed
[INFO] [stdout]  --> exercises/04_traits/03_operator_overloading/src/lib.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct Ticket {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "98e236aee17c83ec25cb47a6ae3363c9b1f2dc0fb342169fdae09492aaa0be0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "98e236aee17c83ec25cb47a6ae3363c9b1f2dc0fb342169fdae09492aaa0be0a", kill_on_drop: false }`
[INFO] [stdout] 98e236aee17c83ec25cb47a6ae3363c9b1f2dc0fb342169fdae09492aaa0be0a
