[INFO] cloning repository https://github.com/Y-ZD-heheka/rust_learn
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Y-ZD-heheka/rust_learn" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FY-ZD-heheka%2Frust_learn", kill_on_drop: false }`
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[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5490f72fb7c4732ac43304e23b60ca2f0841c436
[INFO] testing Y-ZD-heheka/rust_learn against try#db823df02fd0c2cf67b43025ac3fef3f2d743245 for pr-150681
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FY-ZD-heheka%2Frust_learn" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Y-ZD-heheka/rust_learn
[INFO] finished tweaking git repo https://github.com/Y-ZD-heheka/rust_learn
[INFO] tweaked toml for git repo https://github.com/Y-ZD-heheka/rust_learn written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Y-ZD-heheka/rust_learn on toolchain db823df02fd0c2cf67b43025ac3fef3f2d743245
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[INFO] crate git repo https://github.com/Y-ZD-heheka/rust_learn 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" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stdout] warning: unexpected `cfg` condition value: `systemd`
[INFO] [stdout]    --> src/modules.rs:234:11
[INFO] [stdout]     |
[INFO] [stdout] 234 |     #[cfg(feature = "systemd")]
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = help: consider adding `systemd` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `html_div`
[INFO] [stdout]    --> src/macros.rs:400:18
[INFO] [stdout]     |
[INFO] [stdout] 400 |     macro_rules! html_div {
[INFO] [stdout]     |                  ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_macros)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fmt`
[INFO] [stdout]  --> src/best_practices.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::fmt;
[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 variable: `service_name`
[INFO] [stdout]    --> src/error_handling.rs:901:29
[INFO] [stdout]     |
[INFO] [stdout] 901 |     fn handle_payment_error(service_name: &str, message: &str) {
[INFO] [stdout]     |                             ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_service_name`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `is_empty` is never used
[INFO] [stdout]    --> src/basics.rs:131:12
[INFO] [stdout]     |
[INFO] [stdout] 113 |     impl ModernStack {
[INFO] [stdout]     |     ---------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 131 |         fn is_empty(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `is_empty` is never used
[INFO] [stdout]    --> src/basics.rs:186:12
[INFO] [stdout]     |
[INFO] [stdout] 159 |     impl ModernQueue {
[INFO] [stdout]     |     ---------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 186 |         fn is_empty(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `id`, `value`, and `neighbors` are never read
[INFO] [stdout]    --> src/ownership.rs:574:9
[INFO] [stdout]     |
[INFO] [stdout] 573 |     struct GraphNode {
[INFO] [stdout]     |            --------- fields in this struct
[INFO] [stdout] 574 |         id: u32,
[INFO] [stdout]     |         ^^
[INFO] [stdout] 575 |         value: String,
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout] 576 |         neighbors: Vec<Weak<Node>>,
[INFO] [stdout]     |         ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `GraphNode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `add_neighbor` is never used
[INFO] [stdout]    --> src/ownership.rs:590:12
[INFO] [stdout]     |
[INFO] [stdout] 581 |     impl GraphNode {
[INFO] [stdout]     |     -------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 590 |         fn add_neighbor(&self, _neighbor: &Node) {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `distance` and `travel_time` are never read
[INFO] [stdout]    --> src/types.rs:453:9
[INFO] [stdout]     |
[INFO] [stdout] 452 |     struct Route {
[INFO] [stdout]     |            ----- fields in this struct
[INFO] [stdout] 453 |         distance: f64,
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout] 454 |         travel_time: f64,
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Route` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Drawable` is never used
[INFO] [stdout]    --> src/types.rs:592:11
[INFO] [stdout]     |
[INFO] [stdout] 592 |     trait Drawable {
[INFO] [stdout]     |           ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Red` is never constructed
[INFO] [stdout]    --> src/types.rs:600:12
[INFO] [stdout]     |
[INFO] [stdout] 600 |     struct Red;
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Blue` is never constructed
[INFO] [stdout]    --> src/types.rs:602:12
[INFO] [stdout]     |
[INFO] [stdout] 602 |     struct Blue;
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `RedCircle` is never constructed
[INFO] [stdout]    --> src/types.rs:605:12
[INFO] [stdout]     |
[INFO] [stdout] 605 |     struct RedCircle {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BlueRectangle` is never constructed
[INFO] [stdout]    --> src/types.rs:611:12
[INFO] [stdout]     |
[INFO] [stdout] 611 |     struct BlueRectangle {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `disable` is never used
[INFO] [stdout]    --> src/types.rs:721:12
[INFO] [stdout]     |
[INFO] [stdout] 720 |     impl LightSwitch<Enabled> {
[INFO] [stdout]     |     ------------------------- method in this implementation
[INFO] [stdout] 721 |         fn disable(self) -> LightSwitch<Disabled> {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `remove` is never used
[INFO] [stdout]    --> src/types.rs:827:12
[INFO] [stdout]     |
[INFO] [stdout] 815 |     impl Composite {
[INFO] [stdout]     |     -------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 827 |         fn remove(&mut self, index: usize) {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Container` is never constructed
[INFO] [stdout]    --> src/types.rs:954:12
[INFO] [stdout]     |
[INFO] [stdout] 954 |     struct Container<T> {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `push`, `get`, and `len` are never used
[INFO] [stdout]    --> src/types.rs:960:12
[INFO] [stdout]     |
[INFO] [stdout] 959 |     impl<T> Container<T> {
[INFO] [stdout]     |     -------------------- associated items in this implementation
[INFO] [stdout] 960 |         fn new() -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 967 |         fn push(&mut self, item: T) {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 971 |         fn get(&self, index: usize) -> Option<&T> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 975 |         fn len(&self) -> usize {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `PublishedState` is never constructed
[INFO] [stdout]     --> src/types.rs:1059:12
[INFO] [stdout]      |
[INFO] [stdout] 1059 |     struct PublishedState;
[INFO] [stdout]      |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_content` is never used
[INFO] [stdout]     --> src/types.rs:1067:12
[INFO] [stdout]      |
[INFO] [stdout] 1066 |     impl SimpleDocument<PublishedState> {
[INFO] [stdout]      |     ----------------------------------- method in this implementation
[INFO] [stdout] 1067 |         fn get_content(&self) -> &str {
[INFO] [stdout]      |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Seconds` is never constructed
[INFO] [stdout]     --> src/types.rs:1160:12
[INFO] [stdout]      |
[INFO] [stdout] 1160 |     struct Seconds(f64);
[INFO] [stdout]      |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `to_meters` is never used
[INFO] [stdout]     --> src/types.rs:1169:12
[INFO] [stdout]      |
[INFO] [stdout] 1168 |     impl Kilometers {
[INFO] [stdout]      |     --------------- method in this implementation
[INFO] [stdout] 1169 |         fn to_meters(self) -> Meters {
[INFO] [stdout]      |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `NetworkError` and `JsonParsingError` are never constructed
[INFO] [stdout]    --> src/error_handling.rs:274:9
[INFO] [stdout]     |
[INFO] [stdout] 270 |     enum NetworkError {
[INFO] [stdout]     |          ------------ variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 274 |         NetworkError(String),
[INFO] [stdout]     |         ^^^^^^^^^^^^
[INFO] [stdout] 275 |         JsonParsingError,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `NetworkError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `fetch_user_data` is never used
[INFO] [stdout]    --> src/error_handling.rs:291:14
[INFO] [stdout]     |
[INFO] [stdout] 291 |     async fn fetch_user_data(user_id: u32) -> Result<String, NetworkError> {
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_config_file` is never used
[INFO] [stdout]    --> src/error_handling.rs:352:8
[INFO] [stdout]     |
[INFO] [stdout] 352 |     fn read_config_file() -> Result<String, io::Error> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `InvalidType` and `FileParseError` are never constructed
[INFO] [stdout]    --> src/error_handling.rs:419:9
[INFO] [stdout]     |
[INFO] [stdout] 417 |     enum ConfigError {
[INFO] [stdout]     |          ----------- variants in this enum
[INFO] [stdout] 418 |         MissingField(String),
[INFO] [stdout] 419 |         InvalidType { field: String, expected: String, actual: String },
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout] 420 |         InvalidValue { field: String, value: String, reason: String },
[INFO] [stdout] 421 |         FileParseError(String),
[INFO] [stdout]     |         ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ConfigError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `host`, `port`, `database_url`, and `debug` are never read
[INFO] [stdout]    --> src/error_handling.rs:442:9
[INFO] [stdout]     |
[INFO] [stdout] 441 |     struct AppConfig {
[INFO] [stdout]     |            --------- fields in this struct
[INFO] [stdout] 442 |         host: String,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout] 443 |         port: u16,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout] 444 |         database_url: String,
[INFO] [stdout]     |         ^^^^^^^^^^^^
[INFO] [stdout] 445 |         debug: bool,
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `AppConfig` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `ForbiddenAction` is never constructed
[INFO] [stdout]    --> src/error_handling.rs:543:9
[INFO] [stdout]     |
[INFO] [stdout] 538 |     enum ValidationError {
[INFO] [stdout]     |          --------------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 543 |         ForbiddenAction(String),
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ValidationError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `TimeoutError` is never constructed
[INFO] [stdout]    --> src/error_handling.rs:666:9
[INFO] [stdout]     |
[INFO] [stdout] 663 |     enum ResourceError {
[INFO] [stdout]     |          ------------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 666 |         TimeoutError,
[INFO] [stdout]     |         ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ResourceError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `price`, `category`, and `stock` are never read
[INFO] [stdout]    --> src/modules.rs:345:17
[INFO] [stdout]     |
[INFO] [stdout] 342 |         pub struct Product {
[INFO] [stdout]     |                    ------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 345 |             pub price: f64,
[INFO] [stdout]     |                 ^^^^^
[INFO] [stdout] 346 |             pub category: String,
[INFO] [stdout]     |                 ^^^^^^^^
[INFO] [stdout] 347 |             pub stock: u32,
[INFO] [stdout]     |                 ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Product` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `find_by_id` is never used
[INFO] [stdout]    --> src/modules.rs:352:16
[INFO] [stdout]     |
[INFO] [stdout] 351 |         pub trait UserRepository {
[INFO] [stdout]     |                   -------------- method in this trait
[INFO] [stdout] 352 |             fn find_by_id(&self, id: u64) -> Option<User>;
[INFO] [stdout]     |                ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `find_by_id` is never used
[INFO] [stdout]    --> src/modules.rs:359:16
[INFO] [stdout]     |
[INFO] [stdout] 358 |         pub trait ProductRepository {
[INFO] [stdout]     |                   ----------------- method in this trait
[INFO] [stdout] 359 |             fn find_by_id(&self, id: u64) -> Option<Product>;
[INFO] [stdout]     |                ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `product_service` is never read
[INFO] [stdout]    --> src/modules.rs:595:13
[INFO] [stdout]     |
[INFO] [stdout] 593 |         pub struct ApiGateway {
[INFO] [stdout]     |                    ---------- field in this struct
[INFO] [stdout] 594 |             user_service: user_service::UserService,
[INFO] [stdout] 595 |             product_service: product_service::ProductService,
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Processing` and `Completed` are never constructed
[INFO] [stdout]    --> src/macros.rs:794:9
[INFO] [stdout]     |
[INFO] [stdout] 792 |     enum SimpleState {
[INFO] [stdout]     |          ----------- variants in this enum
[INFO] [stdout] 793 |         Idle,
[INFO] [stdout] 794 |         Processing,
[INFO] [stdout]     |         ^^^^^^^^^^
[INFO] [stdout] 795 |         Completed,
[INFO] [stdout]     |         ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `SimpleState` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `id` and `items` are never read
[INFO] [stdout]    --> src/testing.rs:752:13
[INFO] [stdout]     |
[INFO] [stdout] 751 |     pub struct Order {
[INFO] [stdout]     |                ----- fields in this struct
[INFO] [stdout] 752 |         pub id: u32,
[INFO] [stdout]     |             ^^
[INFO] [stdout] 753 |         pub items: Vec<OrderItem>,
[INFO] [stdout]     |             ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Order` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `product_id` is never read
[INFO] [stdout]    --> src/testing.rs:760:13
[INFO] [stdout]     |
[INFO] [stdout] 759 |     pub struct OrderItem {
[INFO] [stdout]     |                --------- field in this struct
[INFO] [stdout] 760 |         pub product_id: u32,
[INFO] [stdout]     |             ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `OrderItem` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Cancelled` is never constructed
[INFO] [stdout]    --> src/testing.rs:769:9
[INFO] [stdout]     |
[INFO] [stdout] 766 |     pub enum OrderStatus {
[INFO] [stdout]     |              ----------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 769 |         Cancelled,
[INFO] [stdout]     |         ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `OrderStatus` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple fields are never read
[INFO] [stdout]   --> src/advanced_patterns.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct DatabaseConfig {
[INFO] [stdout]    |            -------------- fields in this struct
[INFO] [stdout] 15 |     host: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 16 |     port: u16,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 17 |     database: String,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 18 |     username: String,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 19 |     password: String,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 20 |     pool_size: usize,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 21 |     timeout_secs: u64,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `DatabaseConfig` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `AppResult` is never used
[INFO] [stdout]   --> src/best_practices.rs:16:10
[INFO] [stdout]    |
[INFO] [stdout] 16 |     type AppResult<T> = anyhow::Result<T>;
[INFO] [stdout]    |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `UserNotFound` and `PermissionDenied` are never constructed
[INFO] [stdout]   --> src/best_practices.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 20 |     enum BusinessError {
[INFO] [stdout]    |          ------------- variants in this enum
[INFO] [stdout] 21 |         #[error("用户不存在: {0}")]
[INFO] [stdout] 22 |         UserNotFound(String),
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout] 23 |         #[error("权限不足: {0}")]
[INFO] [stdout] 24 |         PermissionDenied(String),
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `BusinessError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `process_user_data` is never used
[INFO] [stdout]   --> src/best_practices.rs:43:8
[INFO] [stdout]    |
[INFO] [stdout] 43 |     fn process_user_data(user_id: &str) -> AppResult<String> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `value` is never read
[INFO] [stdout]    --> src/best_practices.rs:202:9
[INFO] [stdout]     |
[INFO] [stdout] 201 |     struct Node {
[INFO] [stdout]     |            ---- field in this struct
[INFO] [stdout] 202 |         value: i32,
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Node` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `a`, `b`, `c`, `d`, and `e` are never read
[INFO] [stdout]    --> src/best_practices.rs:231:9
[INFO] [stdout]     |
[INFO] [stdout] 230 |     struct UnoptimizedStruct {
[INFO] [stdout]     |            ----------------- fields in this struct
[INFO] [stdout] 231 |         a: u8,    // 1字节
[INFO] [stdout]     |         ^
[INFO] [stdout] 232 |         b: u64,   // 8字节 (需要8字节对齐)
[INFO] [stdout]     |         ^
[INFO] [stdout] 233 |         c: u32,   // 4字节
[INFO] [stdout]     |         ^
[INFO] [stdout] 234 |         d: u16,   // 2字节
[INFO] [stdout]     |         ^
[INFO] [stdout] 235 |         e: u8,    // 1字节
[INFO] [stdout]     |         ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `ApiError` is never used
[INFO] [stdout]    --> src/best_practices.rs:362:14
[INFO] [stdout]     |
[INFO] [stdout] 362 |     pub enum ApiError {
[INFO] [stdout]     |              ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `ApiResult` is never used
[INFO] [stdout]    --> src/best_practices.rs:380:10
[INFO] [stdout]     |
[INFO] [stdout] 380 |     type ApiResult<T> = Result<T, ApiError>;
[INFO] [stdout]     |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Validator` is never used
[INFO] [stdout]    --> src/best_practices.rs:383:15
[INFO] [stdout]     |
[INFO] [stdout] 383 |     pub trait Validator {
[INFO] [stdout]     |               ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `return_first_element` is never used
[INFO] [stdout]   --> src/pitfalls.rs:30:8
[INFO] [stdout]    |
[INFO] [stdout] 30 |     fn return_first_element() -> i32 {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Node` is never constructed
[INFO] [stdout]    --> src/pitfalls.rs:257:12
[INFO] [stdout]     |
[INFO] [stdout] 257 |     struct Node {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SafeNode` is never constructed
[INFO] [stdout]    --> src/pitfalls.rs:286:12
[INFO] [stdout]     |
[INFO] [stdout] 286 |     struct SafeNode {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `data` and `metadata` are never read
[INFO] [stdout]    --> src/pitfalls.rs:296:9
[INFO] [stdout]     |
[INFO] [stdout] 295 |     struct LargeData {
[INFO] [stdout]     |            --------- fields in this struct
[INFO] [stdout] 296 |         data: Vec<u8>,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout] 297 |         metadata: Vec<String>,
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3m 44s
[INFO] running `Command { std: "docker" "inspect" "6403bcc2e3a840fb7ebec580126fccd8c82ef28feaf4a3fe709757c1ffa5dc91", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6403bcc2e3a840fb7ebec580126fccd8c82ef28feaf4a3fe709757c1ffa5dc91", kill_on_drop: false }`
[INFO] [stdout] 6403bcc2e3a840fb7ebec580126fccd8c82ef28feaf4a3fe709757c1ffa5dc91
[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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4fff6ff771cd2c68ee28c1f78328fe0881f7cb14b1acc4650b0e72fac64c0c8c
[INFO] running `Command { std: "docker" "start" "-a" "4fff6ff771cd2c68ee28c1f78328fe0881f7cb14b1acc4650b0e72fac64c0c8c", kill_on_drop: false }`
[INFO] [stderr]    Compiling zerocopy v0.8.28
[INFO] [stderr]    Compiling zerocopy-derive v0.8.28
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling chrono v0.4.42
[INFO] [stderr]    Compiling openssl v0.10.75
[INFO] [stderr]    Compiling bitflags v2.10.0
[INFO] [stderr]    Compiling rustix v1.1.2
[INFO] [stderr]    Compiling tower-http v0.6.6
[INFO] [stderr]    Compiling itertools v0.13.0
[INFO] [stderr]    Compiling wait-timeout v0.2.1
[INFO] [stderr]    Compiling atoi v2.0.0
[INFO] [stderr]    Compiling plotters v0.3.7
[INFO] [stderr]    Compiling sqlx-core v0.8.6
[INFO] [stderr]    Compiling criterion-plot v0.6.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling tempfile v3.23.0
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling rusty-fork v0.3.1
[INFO] [stderr]    Compiling rayon v1.11.0
[INFO] [stderr]    Compiling rand_xorshift v0.4.0
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling native-tls v0.2.14
[INFO] [stderr]    Compiling tokio-native-tls v0.3.1
[INFO] [stderr]    Compiling half v2.7.1
[INFO] [stderr]    Compiling hyper-tls v0.6.0
[INFO] [stderr]    Compiling rand_chacha v0.9.0
[INFO] [stderr]    Compiling reqwest v0.12.24
[INFO] [stderr]    Compiling ciborium-ll v0.2.2
[INFO] [stderr]    Compiling rand v0.9.2
[INFO] [stderr]    Compiling ciborium v0.2.2
[INFO] [stderr]    Compiling sqlx-sqlite v0.8.6
[INFO] [stderr]    Compiling sqlx-postgres v0.8.6
[INFO] [stderr]    Compiling proptest v1.9.0
[INFO] [stderr]    Compiling criterion v0.7.0
[INFO] [stderr]    Compiling sqlx-macros-core v0.8.6
[INFO] [stderr]    Compiling sqlx-macros v0.8.6
[INFO] [stderr]    Compiling sqlx v0.8.6
[INFO] [stderr]    Compiling rust_learn v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unexpected `cfg` condition value: `systemd`
[INFO] [stdout]    --> src/modules.rs:234:11
[INFO] [stdout]     |
[INFO] [stdout] 234 |     #[cfg(feature = "systemd")]
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = help: consider adding `systemd` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `html_div`
[INFO] [stdout]    --> src/macros.rs:400:18
[INFO] [stdout]     |
[INFO] [stdout] 400 |     macro_rules! html_div {
[INFO] [stdout]     |                  ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_macros)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fmt`
[INFO] [stdout]  --> src/best_practices.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::fmt;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `systemd`
[INFO] [stdout]    --> src/modules.rs:234:11
[INFO] [stdout]     |
[INFO] [stdout] 234 |     #[cfg(feature = "systemd")]
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = help: consider adding `systemd` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `html_div`
[INFO] [stdout]    --> src/macros.rs:400:18
[INFO] [stdout]     |
[INFO] [stdout] 400 |     macro_rules! html_div {
[INFO] [stdout]     |                  ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_macros)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]    --> src/testing.rs:282:9
[INFO] [stdout]     |
[INFO] [stdout] 282 |     use super::*;
[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::fmt`
[INFO] [stdout]  --> src/best_practices.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::fmt;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `service_name`
[INFO] [stdout]    --> src/error_handling.rs:901:29
[INFO] [stdout]     |
[INFO] [stdout] 901 |     fn handle_payment_error(service_name: &str, message: &str) {
[INFO] [stdout]     |                             ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_service_name`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `service_name`
[INFO] [stdout]    --> src/error_handling.rs:901:29
[INFO] [stdout]     |
[INFO] [stdout] 901 |     fn handle_payment_error(service_name: &str, message: &str) {
[INFO] [stdout]     |                             ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_service_name`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `is_empty` is never used
[INFO] [stdout]    --> src/basics.rs:131:12
[INFO] [stdout]     |
[INFO] [stdout] 113 |     impl ModernStack {
[INFO] [stdout]     |     ---------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 131 |         fn is_empty(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `is_empty` is never used
[INFO] [stdout]    --> src/basics.rs:186:12
[INFO] [stdout]     |
[INFO] [stdout] 159 |     impl ModernQueue {
[INFO] [stdout]     |     ---------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 186 |         fn is_empty(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `id`, `value`, and `neighbors` are never read
[INFO] [stdout]    --> src/ownership.rs:574:9
[INFO] [stdout]     |
[INFO] [stdout] 573 |     struct GraphNode {
[INFO] [stdout]     |            --------- fields in this struct
[INFO] [stdout] 574 |         id: u32,
[INFO] [stdout]     |         ^^
[INFO] [stdout] 575 |         value: String,
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout] 576 |         neighbors: Vec<Weak<Node>>,
[INFO] [stdout]     |         ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `GraphNode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `add_neighbor` is never used
[INFO] [stdout]    --> src/ownership.rs:590:12
[INFO] [stdout]     |
[INFO] [stdout] 581 |     impl GraphNode {
[INFO] [stdout]     |     -------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 590 |         fn add_neighbor(&self, _neighbor: &Node) {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `distance` and `travel_time` are never read
[INFO] [stdout]    --> src/types.rs:453:9
[INFO] [stdout]     |
[INFO] [stdout] 452 |     struct Route {
[INFO] [stdout]     |            ----- fields in this struct
[INFO] [stdout] 453 |         distance: f64,
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout] 454 |         travel_time: f64,
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Route` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Drawable` is never used
[INFO] [stdout]    --> src/types.rs:592:11
[INFO] [stdout]     |
[INFO] [stdout] 592 |     trait Drawable {
[INFO] [stdout]     |           ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Red` is never constructed
[INFO] [stdout]    --> src/types.rs:600:12
[INFO] [stdout]     |
[INFO] [stdout] 600 |     struct Red;
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Blue` is never constructed
[INFO] [stdout]    --> src/types.rs:602:12
[INFO] [stdout]     |
[INFO] [stdout] 602 |     struct Blue;
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `RedCircle` is never constructed
[INFO] [stdout]    --> src/types.rs:605:12
[INFO] [stdout]     |
[INFO] [stdout] 605 |     struct RedCircle {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BlueRectangle` is never constructed
[INFO] [stdout]    --> src/types.rs:611:12
[INFO] [stdout]     |
[INFO] [stdout] 611 |     struct BlueRectangle {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `disable` is never used
[INFO] [stdout]    --> src/types.rs:721:12
[INFO] [stdout]     |
[INFO] [stdout] 720 |     impl LightSwitch<Enabled> {
[INFO] [stdout]     |     ------------------------- method in this implementation
[INFO] [stdout] 721 |         fn disable(self) -> LightSwitch<Disabled> {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `remove` is never used
[INFO] [stdout]    --> src/types.rs:827:12
[INFO] [stdout]     |
[INFO] [stdout] 815 |     impl Composite {
[INFO] [stdout]     |     -------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 827 |         fn remove(&mut self, index: usize) {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Container` is never constructed
[INFO] [stdout]    --> src/types.rs:954:12
[INFO] [stdout]     |
[INFO] [stdout] 954 |     struct Container<T> {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `push`, `get`, and `len` are never used
[INFO] [stdout]    --> src/types.rs:960:12
[INFO] [stdout]     |
[INFO] [stdout] 959 |     impl<T> Container<T> {
[INFO] [stdout]     |     -------------------- associated items in this implementation
[INFO] [stdout] 960 |         fn new() -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 967 |         fn push(&mut self, item: T) {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 971 |         fn get(&self, index: usize) -> Option<&T> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 975 |         fn len(&self) -> usize {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `PublishedState` is never constructed
[INFO] [stdout]     --> src/types.rs:1059:12
[INFO] [stdout]      |
[INFO] [stdout] 1059 |     struct PublishedState;
[INFO] [stdout]      |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_content` is never used
[INFO] [stdout]     --> src/types.rs:1067:12
[INFO] [stdout]      |
[INFO] [stdout] 1066 |     impl SimpleDocument<PublishedState> {
[INFO] [stdout]      |     ----------------------------------- method in this implementation
[INFO] [stdout] 1067 |         fn get_content(&self) -> &str {
[INFO] [stdout]      |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Seconds` is never constructed
[INFO] [stdout]     --> src/types.rs:1160:12
[INFO] [stdout]      |
[INFO] [stdout] 1160 |     struct Seconds(f64);
[INFO] [stdout]      |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `to_meters` is never used
[INFO] [stdout]     --> src/types.rs:1169:12
[INFO] [stdout]      |
[INFO] [stdout] 1168 |     impl Kilometers {
[INFO] [stdout]      |     --------------- method in this implementation
[INFO] [stdout] 1169 |         fn to_meters(self) -> Meters {
[INFO] [stdout]      |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `NetworkError` and `JsonParsingError` are never constructed
[INFO] [stdout]    --> src/error_handling.rs:274:9
[INFO] [stdout]     |
[INFO] [stdout] 270 |     enum NetworkError {
[INFO] [stdout]     |          ------------ variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 274 |         NetworkError(String),
[INFO] [stdout]     |         ^^^^^^^^^^^^
[INFO] [stdout] 275 |         JsonParsingError,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `NetworkError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `fetch_user_data` is never used
[INFO] [stdout]    --> src/error_handling.rs:291:14
[INFO] [stdout]     |
[INFO] [stdout] 291 |     async fn fetch_user_data(user_id: u32) -> Result<String, NetworkError> {
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_config_file` is never used
[INFO] [stdout]    --> src/error_handling.rs:352:8
[INFO] [stdout]     |
[INFO] [stdout] 352 |     fn read_config_file() -> Result<String, io::Error> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `InvalidType` and `FileParseError` are never constructed
[INFO] [stdout]    --> src/error_handling.rs:419:9
[INFO] [stdout]     |
[INFO] [stdout] 417 |     enum ConfigError {
[INFO] [stdout]     |          ----------- variants in this enum
[INFO] [stdout] 418 |         MissingField(String),
[INFO] [stdout] 419 |         InvalidType { field: String, expected: String, actual: String },
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout] 420 |         InvalidValue { field: String, value: String, reason: String },
[INFO] [stdout] 421 |         FileParseError(String),
[INFO] [stdout]     |         ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ConfigError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `host`, `port`, `database_url`, and `debug` are never read
[INFO] [stdout]    --> src/error_handling.rs:442:9
[INFO] [stdout]     |
[INFO] [stdout] 441 |     struct AppConfig {
[INFO] [stdout]     |            --------- fields in this struct
[INFO] [stdout] 442 |         host: String,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout] 443 |         port: u16,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout] 444 |         database_url: String,
[INFO] [stdout]     |         ^^^^^^^^^^^^
[INFO] [stdout] 445 |         debug: bool,
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `AppConfig` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `ForbiddenAction` is never constructed
[INFO] [stdout]    --> src/error_handling.rs:543:9
[INFO] [stdout]     |
[INFO] [stdout] 538 |     enum ValidationError {
[INFO] [stdout]     |          --------------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 543 |         ForbiddenAction(String),
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ValidationError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `TimeoutError` is never constructed
[INFO] [stdout]    --> src/error_handling.rs:666:9
[INFO] [stdout]     |
[INFO] [stdout] 663 |     enum ResourceError {
[INFO] [stdout]     |          ------------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 666 |         TimeoutError,
[INFO] [stdout]     |         ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ResourceError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `price`, `category`, and `stock` are never read
[INFO] [stdout]    --> src/modules.rs:345:17
[INFO] [stdout]     |
[INFO] [stdout] 342 |         pub struct Product {
[INFO] [stdout]     |                    ------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 345 |             pub price: f64,
[INFO] [stdout]     |                 ^^^^^
[INFO] [stdout] 346 |             pub category: String,
[INFO] [stdout]     |                 ^^^^^^^^
[INFO] [stdout] 347 |             pub stock: u32,
[INFO] [stdout]     |                 ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Product` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `find_by_id` is never used
[INFO] [stdout]    --> src/modules.rs:352:16
[INFO] [stdout]     |
[INFO] [stdout] 351 |         pub trait UserRepository {
[INFO] [stdout]     |                   -------------- method in this trait
[INFO] [stdout] 352 |             fn find_by_id(&self, id: u64) -> Option<User>;
[INFO] [stdout]     |                ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `find_by_id` is never used
[INFO] [stdout]    --> src/modules.rs:359:16
[INFO] [stdout]     |
[INFO] [stdout] 358 |         pub trait ProductRepository {
[INFO] [stdout]     |                   ----------------- method in this trait
[INFO] [stdout] 359 |             fn find_by_id(&self, id: u64) -> Option<Product>;
[INFO] [stdout]     |                ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `product_service` is never read
[INFO] [stdout]    --> src/modules.rs:595:13
[INFO] [stdout]     |
[INFO] [stdout] 593 |         pub struct ApiGateway {
[INFO] [stdout]     |                    ---------- field in this struct
[INFO] [stdout] 594 |             user_service: user_service::UserService,
[INFO] [stdout] 595 |             product_service: product_service::ProductService,
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Processing` and `Completed` are never constructed
[INFO] [stdout]    --> src/macros.rs:794:9
[INFO] [stdout]     |
[INFO] [stdout] 792 |     enum SimpleState {
[INFO] [stdout]     |          ----------- variants in this enum
[INFO] [stdout] 793 |         Idle,
[INFO] [stdout] 794 |         Processing,
[INFO] [stdout]     |         ^^^^^^^^^^
[INFO] [stdout] 795 |         Completed,
[INFO] [stdout]     |         ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `SimpleState` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `id` and `items` are never read
[INFO] [stdout]    --> src/testing.rs:752:13
[INFO] [stdout]     |
[INFO] [stdout] 751 |     pub struct Order {
[INFO] [stdout]     |                ----- fields in this struct
[INFO] [stdout] 752 |         pub id: u32,
[INFO] [stdout]     |             ^^
[INFO] [stdout] 753 |         pub items: Vec<OrderItem>,
[INFO] [stdout]     |             ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Order` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `product_id` is never read
[INFO] [stdout]    --> src/testing.rs:760:13
[INFO] [stdout]     |
[INFO] [stdout] 759 |     pub struct OrderItem {
[INFO] [stdout]     |                --------- field in this struct
[INFO] [stdout] 760 |         pub product_id: u32,
[INFO] [stdout]     |             ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `OrderItem` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Cancelled` is never constructed
[INFO] [stdout]    --> src/testing.rs:769:9
[INFO] [stdout]     |
[INFO] [stdout] 766 |     pub enum OrderStatus {
[INFO] [stdout]     |              ----------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 769 |         Cancelled,
[INFO] [stdout]     |         ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `OrderStatus` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple fields are never read
[INFO] [stdout]   --> src/advanced_patterns.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct DatabaseConfig {
[INFO] [stdout]    |            -------------- fields in this struct
[INFO] [stdout] 15 |     host: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 16 |     port: u16,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 17 |     database: String,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 18 |     username: String,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 19 |     password: String,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 20 |     pool_size: usize,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 21 |     timeout_secs: u64,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `DatabaseConfig` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `AppResult` is never used
[INFO] [stdout]   --> src/best_practices.rs:16:10
[INFO] [stdout]    |
[INFO] [stdout] 16 |     type AppResult<T> = anyhow::Result<T>;
[INFO] [stdout]    |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `UserNotFound` and `PermissionDenied` are never constructed
[INFO] [stdout]   --> src/best_practices.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 20 |     enum BusinessError {
[INFO] [stdout]    |          ------------- variants in this enum
[INFO] [stdout] 21 |         #[error("用户不存在: {0}")]
[INFO] [stdout] 22 |         UserNotFound(String),
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout] 23 |         #[error("权限不足: {0}")]
[INFO] [stdout] 24 |         PermissionDenied(String),
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `BusinessError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `process_user_data` is never used
[INFO] [stdout]   --> src/best_practices.rs:43:8
[INFO] [stdout]    |
[INFO] [stdout] 43 |     fn process_user_data(user_id: &str) -> AppResult<String> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `value` is never read
[INFO] [stdout]    --> src/best_practices.rs:202:9
[INFO] [stdout]     |
[INFO] [stdout] 201 |     struct Node {
[INFO] [stdout]     |            ---- field in this struct
[INFO] [stdout] 202 |         value: i32,
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Node` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `a`, `b`, `c`, `d`, and `e` are never read
[INFO] [stdout]    --> src/best_practices.rs:231:9
[INFO] [stdout]     |
[INFO] [stdout] 230 |     struct UnoptimizedStruct {
[INFO] [stdout]     |            ----------------- fields in this struct
[INFO] [stdout] 231 |         a: u8,    // 1字节
[INFO] [stdout]     |         ^
[INFO] [stdout] 232 |         b: u64,   // 8字节 (需要8字节对齐)
[INFO] [stdout]     |         ^
[INFO] [stdout] 233 |         c: u32,   // 4字节
[INFO] [stdout]     |         ^
[INFO] [stdout] 234 |         d: u16,   // 2字节
[INFO] [stdout]     |         ^
[INFO] [stdout] 235 |         e: u8,    // 1字节
[INFO] [stdout]     |         ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `ApiError` is never used
[INFO] [stdout]    --> src/best_practices.rs:362:14
[INFO] [stdout]     |
[INFO] [stdout] 362 |     pub enum ApiError {
[INFO] [stdout]     |              ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `ApiResult` is never used
[INFO] [stdout]    --> src/best_practices.rs:380:10
[INFO] [stdout]     |
[INFO] [stdout] 380 |     type ApiResult<T> = Result<T, ApiError>;
[INFO] [stdout]     |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Validator` is never used
[INFO] [stdout]    --> src/best_practices.rs:383:15
[INFO] [stdout]     |
[INFO] [stdout] 383 |     pub trait Validator {
[INFO] [stdout]     |               ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `return_first_element` is never used
[INFO] [stdout]   --> src/pitfalls.rs:30:8
[INFO] [stdout]    |
[INFO] [stdout] 30 |     fn return_first_element() -> i32 {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Node` is never constructed
[INFO] [stdout]    --> src/pitfalls.rs:257:12
[INFO] [stdout]     |
[INFO] [stdout] 257 |     struct Node {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SafeNode` is never constructed
[INFO] [stdout]    --> src/pitfalls.rs:286:12
[INFO] [stdout]     |
[INFO] [stdout] 286 |     struct SafeNode {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `data` and `metadata` are never read
[INFO] [stdout]    --> src/pitfalls.rs:296:9
[INFO] [stdout]     |
[INFO] [stdout] 295 |     struct LargeData {
[INFO] [stdout]     |            --------- fields in this struct
[INFO] [stdout] 296 |         data: Vec<u8>,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout] 297 |         metadata: Vec<String>,
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `is_empty` is never used
[INFO] [stdout]    --> src/basics.rs:131:12
[INFO] [stdout]     |
[INFO] [stdout] 113 |     impl ModernStack {
[INFO] [stdout]     |     ---------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 131 |         fn is_empty(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `is_empty` is never used
[INFO] [stdout]    --> src/basics.rs:186:12
[INFO] [stdout]     |
[INFO] [stdout] 159 |     impl ModernQueue {
[INFO] [stdout]     |     ---------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 186 |         fn is_empty(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `id`, `value`, and `neighbors` are never read
[INFO] [stdout]    --> src/ownership.rs:574:9
[INFO] [stdout]     |
[INFO] [stdout] 573 |     struct GraphNode {
[INFO] [stdout]     |            --------- fields in this struct
[INFO] [stdout] 574 |         id: u32,
[INFO] [stdout]     |         ^^
[INFO] [stdout] 575 |         value: String,
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout] 576 |         neighbors: Vec<Weak<Node>>,
[INFO] [stdout]     |         ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `GraphNode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `add_neighbor` is never used
[INFO] [stdout]    --> src/ownership.rs:590:12
[INFO] [stdout]     |
[INFO] [stdout] 581 |     impl GraphNode {
[INFO] [stdout]     |     -------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 590 |         fn add_neighbor(&self, _neighbor: &Node) {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `distance` and `travel_time` are never read
[INFO] [stdout]    --> src/types.rs:453:9
[INFO] [stdout]     |
[INFO] [stdout] 452 |     struct Route {
[INFO] [stdout]     |            ----- fields in this struct
[INFO] [stdout] 453 |         distance: f64,
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout] 454 |         travel_time: f64,
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Route` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Drawable` is never used
[INFO] [stdout]    --> src/types.rs:592:11
[INFO] [stdout]     |
[INFO] [stdout] 592 |     trait Drawable {
[INFO] [stdout]     |           ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Red` is never constructed
[INFO] [stdout]    --> src/types.rs:600:12
[INFO] [stdout]     |
[INFO] [stdout] 600 |     struct Red;
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Blue` is never constructed
[INFO] [stdout]    --> src/types.rs:602:12
[INFO] [stdout]     |
[INFO] [stdout] 602 |     struct Blue;
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `RedCircle` is never constructed
[INFO] [stdout]    --> src/types.rs:605:12
[INFO] [stdout]     |
[INFO] [stdout] 605 |     struct RedCircle {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BlueRectangle` is never constructed
[INFO] [stdout]    --> src/types.rs:611:12
[INFO] [stdout]     |
[INFO] [stdout] 611 |     struct BlueRectangle {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `disable` is never used
[INFO] [stdout]    --> src/types.rs:721:12
[INFO] [stdout]     |
[INFO] [stdout] 720 |     impl LightSwitch<Enabled> {
[INFO] [stdout]     |     ------------------------- method in this implementation
[INFO] [stdout] 721 |         fn disable(self) -> LightSwitch<Disabled> {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `remove` is never used
[INFO] [stdout]    --> src/types.rs:827:12
[INFO] [stdout]     |
[INFO] [stdout] 815 |     impl Composite {
[INFO] [stdout]     |     -------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 827 |         fn remove(&mut self, index: usize) {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Container` is never constructed
[INFO] [stdout]    --> src/types.rs:954:12
[INFO] [stdout]     |
[INFO] [stdout] 954 |     struct Container<T> {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `push`, `get`, and `len` are never used
[INFO] [stdout]    --> src/types.rs:960:12
[INFO] [stdout]     |
[INFO] [stdout] 959 |     impl<T> Container<T> {
[INFO] [stdout]     |     -------------------- associated items in this implementation
[INFO] [stdout] 960 |         fn new() -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 967 |         fn push(&mut self, item: T) {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 971 |         fn get(&self, index: usize) -> Option<&T> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 975 |         fn len(&self) -> usize {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `PublishedState` is never constructed
[INFO] [stdout]     --> src/types.rs:1059:12
[INFO] [stdout]      |
[INFO] [stdout] 1059 |     struct PublishedState;
[INFO] [stdout]      |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_content` is never used
[INFO] [stdout]     --> src/types.rs:1067:12
[INFO] [stdout]      |
[INFO] [stdout] 1066 |     impl SimpleDocument<PublishedState> {
[INFO] [stdout]      |     ----------------------------------- method in this implementation
[INFO] [stdout] 1067 |         fn get_content(&self) -> &str {
[INFO] [stdout]      |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Seconds` is never constructed
[INFO] [stdout]     --> src/types.rs:1160:12
[INFO] [stdout]      |
[INFO] [stdout] 1160 |     struct Seconds(f64);
[INFO] [stdout]      |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `to_meters` is never used
[INFO] [stdout]     --> src/types.rs:1169:12
[INFO] [stdout]      |
[INFO] [stdout] 1168 |     impl Kilometers {
[INFO] [stdout]      |     --------------- method in this implementation
[INFO] [stdout] 1169 |         fn to_meters(self) -> Meters {
[INFO] [stdout]      |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `NetworkError` and `JsonParsingError` are never constructed
[INFO] [stdout]    --> src/error_handling.rs:274:9
[INFO] [stdout]     |
[INFO] [stdout] 270 |     enum NetworkError {
[INFO] [stdout]     |          ------------ variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 274 |         NetworkError(String),
[INFO] [stdout]     |         ^^^^^^^^^^^^
[INFO] [stdout] 275 |         JsonParsingError,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `NetworkError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `fetch_user_data` is never used
[INFO] [stdout]    --> src/error_handling.rs:291:14
[INFO] [stdout]     |
[INFO] [stdout] 291 |     async fn fetch_user_data(user_id: u32) -> Result<String, NetworkError> {
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_config_file` is never used
[INFO] [stdout]    --> src/error_handling.rs:352:8
[INFO] [stdout]     |
[INFO] [stdout] 352 |     fn read_config_file() -> Result<String, io::Error> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `InvalidType` and `FileParseError` are never constructed
[INFO] [stdout]    --> src/error_handling.rs:419:9
[INFO] [stdout]     |
[INFO] [stdout] 417 |     enum ConfigError {
[INFO] [stdout]     |          ----------- variants in this enum
[INFO] [stdout] 418 |         MissingField(String),
[INFO] [stdout] 419 |         InvalidType { field: String, expected: String, actual: String },
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout] 420 |         InvalidValue { field: String, value: String, reason: String },
[INFO] [stdout] 421 |         FileParseError(String),
[INFO] [stdout]     |         ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ConfigError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `host`, `port`, `database_url`, and `debug` are never read
[INFO] [stdout]    --> src/error_handling.rs:442:9
[INFO] [stdout]     |
[INFO] [stdout] 441 |     struct AppConfig {
[INFO] [stdout]     |            --------- fields in this struct
[INFO] [stdout] 442 |         host: String,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout] 443 |         port: u16,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout] 444 |         database_url: String,
[INFO] [stdout]     |         ^^^^^^^^^^^^
[INFO] [stdout] 445 |         debug: bool,
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `AppConfig` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `ForbiddenAction` is never constructed
[INFO] [stdout]    --> src/error_handling.rs:543:9
[INFO] [stdout]     |
[INFO] [stdout] 538 |     enum ValidationError {
[INFO] [stdout]     |          --------------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 543 |         ForbiddenAction(String),
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ValidationError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `TimeoutError` is never constructed
[INFO] [stdout]    --> src/error_handling.rs:666:9
[INFO] [stdout]     |
[INFO] [stdout] 663 |     enum ResourceError {
[INFO] [stdout]     |          ------------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 666 |         TimeoutError,
[INFO] [stdout]     |         ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ResourceError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `price`, `category`, and `stock` are never read
[INFO] [stdout]    --> src/modules.rs:345:17
[INFO] [stdout]     |
[INFO] [stdout] 342 |         pub struct Product {
[INFO] [stdout]     |                    ------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 345 |             pub price: f64,
[INFO] [stdout]     |                 ^^^^^
[INFO] [stdout] 346 |             pub category: String,
[INFO] [stdout]     |                 ^^^^^^^^
[INFO] [stdout] 347 |             pub stock: u32,
[INFO] [stdout]     |                 ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Product` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `find_by_id` is never used
[INFO] [stdout]    --> src/modules.rs:352:16
[INFO] [stdout]     |
[INFO] [stdout] 351 |         pub trait UserRepository {
[INFO] [stdout]     |                   -------------- method in this trait
[INFO] [stdout] 352 |             fn find_by_id(&self, id: u64) -> Option<User>;
[INFO] [stdout]     |                ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `find_by_id` is never used
[INFO] [stdout]    --> src/modules.rs:359:16
[INFO] [stdout]     |
[INFO] [stdout] 358 |         pub trait ProductRepository {
[INFO] [stdout]     |                   ----------------- method in this trait
[INFO] [stdout] 359 |             fn find_by_id(&self, id: u64) -> Option<Product>;
[INFO] [stdout]     |                ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `product_service` is never read
[INFO] [stdout]    --> src/modules.rs:595:13
[INFO] [stdout]     |
[INFO] [stdout] 593 |         pub struct ApiGateway {
[INFO] [stdout]     |                    ---------- field in this struct
[INFO] [stdout] 594 |             user_service: user_service::UserService,
[INFO] [stdout] 595 |             product_service: product_service::ProductService,
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Processing` and `Completed` are never constructed
[INFO] [stdout]    --> src/macros.rs:794:9
[INFO] [stdout]     |
[INFO] [stdout] 792 |     enum SimpleState {
[INFO] [stdout]     |          ----------- variants in this enum
[INFO] [stdout] 793 |         Idle,
[INFO] [stdout] 794 |         Processing,
[INFO] [stdout]     |         ^^^^^^^^^^
[INFO] [stdout] 795 |         Completed,
[INFO] [stdout]     |         ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `SimpleState` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `id` and `items` are never read
[INFO] [stdout]    --> src/testing.rs:752:13
[INFO] [stdout]     |
[INFO] [stdout] 751 |     pub struct Order {
[INFO] [stdout]     |                ----- fields in this struct
[INFO] [stdout] 752 |         pub id: u32,
[INFO] [stdout]     |             ^^
[INFO] [stdout] 753 |         pub items: Vec<OrderItem>,
[INFO] [stdout]     |             ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Order` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `product_id` is never read
[INFO] [stdout]    --> src/testing.rs:760:13
[INFO] [stdout]     |
[INFO] [stdout] 759 |     pub struct OrderItem {
[INFO] [stdout]     |                --------- field in this struct
[INFO] [stdout] 760 |         pub product_id: u32,
[INFO] [stdout]     |             ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `OrderItem` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Cancelled` is never constructed
[INFO] [stdout]    --> src/testing.rs:769:9
[INFO] [stdout]     |
[INFO] [stdout] 766 |     pub enum OrderStatus {
[INFO] [stdout]     |              ----------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 769 |         Cancelled,
[INFO] [stdout]     |         ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `OrderStatus` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple fields are never read
[INFO] [stdout]   --> src/advanced_patterns.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct DatabaseConfig {
[INFO] [stdout]    |            -------------- fields in this struct
[INFO] [stdout] 15 |     host: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 16 |     port: u16,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 17 |     database: String,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 18 |     username: String,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 19 |     password: String,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 20 |     pool_size: usize,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 21 |     timeout_secs: u64,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `DatabaseConfig` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `AppResult` is never used
[INFO] [stdout]   --> src/best_practices.rs:16:10
[INFO] [stdout]    |
[INFO] [stdout] 16 |     type AppResult<T> = anyhow::Result<T>;
[INFO] [stdout]    |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `UserNotFound` and `PermissionDenied` are never constructed
[INFO] [stdout]   --> src/best_practices.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 20 |     enum BusinessError {
[INFO] [stdout]    |          ------------- variants in this enum
[INFO] [stdout] 21 |         #[error("用户不存在: {0}")]
[INFO] [stdout] 22 |         UserNotFound(String),
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout] 23 |         #[error("权限不足: {0}")]
[INFO] [stdout] 24 |         PermissionDenied(String),
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `BusinessError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `process_user_data` is never used
[INFO] [stdout]   --> src/best_practices.rs:43:8
[INFO] [stdout]    |
[INFO] [stdout] 43 |     fn process_user_data(user_id: &str) -> AppResult<String> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `value` is never read
[INFO] [stdout]    --> src/best_practices.rs:202:9
[INFO] [stdout]     |
[INFO] [stdout] 201 |     struct Node {
[INFO] [stdout]     |            ---- field in this struct
[INFO] [stdout] 202 |         value: i32,
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Node` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `a`, `b`, `c`, `d`, and `e` are never read
[INFO] [stdout]    --> src/best_practices.rs:231:9
[INFO] [stdout]     |
[INFO] [stdout] 230 |     struct UnoptimizedStruct {
[INFO] [stdout]     |            ----------------- fields in this struct
[INFO] [stdout] 231 |         a: u8,    // 1字节
[INFO] [stdout]     |         ^
[INFO] [stdout] 232 |         b: u64,   // 8字节 (需要8字节对齐)
[INFO] [stdout]     |         ^
[INFO] [stdout] 233 |         c: u32,   // 4字节
[INFO] [stdout]     |         ^
[INFO] [stdout] 234 |         d: u16,   // 2字节
[INFO] [stdout]     |         ^
[INFO] [stdout] 235 |         e: u8,    // 1字节
[INFO] [stdout]     |         ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `ApiError` is never used
[INFO] [stdout]    --> src/best_practices.rs:362:14
[INFO] [stdout]     |
[INFO] [stdout] 362 |     pub enum ApiError {
[INFO] [stdout]     |              ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `ApiResult` is never used
[INFO] [stdout]    --> src/best_practices.rs:380:10
[INFO] [stdout]     |
[INFO] [stdout] 380 |     type ApiResult<T> = Result<T, ApiError>;
[INFO] [stdout]     |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Validator` is never used
[INFO] [stdout]    --> src/best_practices.rs:383:15
[INFO] [stdout]     |
[INFO] [stdout] 383 |     pub trait Validator {
[INFO] [stdout]     |               ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `validate_email_correct_format` is never used
[INFO] [stdout]    --> src/best_practices.rs:428:12
[INFO] [stdout]     |
[INFO] [stdout] 428 |         fn validate_email_correct_format() {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_config_functionality` is never used
[INFO] [stdout]    --> src/best_practices.rs:434:12
[INFO] [stdout]     |
[INFO] [stdout] 434 |         fn test_config_functionality() {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `panics_on_invalid_input` is never used
[INFO] [stdout]    --> src/best_practices.rs:442:12
[INFO] [stdout]     |
[INFO] [stdout] 442 |         fn panics_on_invalid_input() {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `return_first_element` is never used
[INFO] [stdout]   --> src/pitfalls.rs:30:8
[INFO] [stdout]    |
[INFO] [stdout] 30 |     fn return_first_element() -> i32 {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Node` is never constructed
[INFO] [stdout]    --> src/pitfalls.rs:257:12
[INFO] [stdout]     |
[INFO] [stdout] 257 |     struct Node {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SafeNode` is never constructed
[INFO] [stdout]    --> src/pitfalls.rs:286:12
[INFO] [stdout]     |
[INFO] [stdout] 286 |     struct SafeNode {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `data` and `metadata` are never read
[INFO] [stdout]    --> src/pitfalls.rs:296:9
[INFO] [stdout]     |
[INFO] [stdout] 295 |     struct LargeData {
[INFO] [stdout]     |            --------- fields in this struct
[INFO] [stdout] 296 |         data: Vec<u8>,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout] 297 |         metadata: Vec<String>,
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1m 42s
[INFO] running `Command { std: "docker" "inspect" "4fff6ff771cd2c68ee28c1f78328fe0881f7cb14b1acc4650b0e72fac64c0c8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4fff6ff771cd2c68ee28c1f78328fe0881f7cb14b1acc4650b0e72fac64c0c8c", kill_on_drop: false }`
[INFO] [stdout] 4fff6ff771cd2c68ee28c1f78328fe0881f7cb14b1acc4650b0e72fac64c0c8c
[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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 804d1c4b6e11ff2b3e6e5ef2a41ed8e2425f151d671e31c166dee40be5649506
[INFO] running `Command { std: "docker" "start" "-a" "804d1c4b6e11ff2b3e6e5ef2a41ed8e2425f151d671e31c166dee40be5649506", kill_on_drop: false }`
[INFO] [stderr] warning: unexpected `cfg` condition value: `systemd`
[INFO] [stderr]    --> src/modules.rs:234:11
[INFO] [stderr]     |
[INFO] [stderr] 234 |     #[cfg(feature = "systemd")]
[INFO] [stderr]     |           ^^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stderr]     |
[INFO] [stderr]     = note: no expected values for `feature`
[INFO] [stderr]     = help: consider adding `systemd` as a feature in `Cargo.toml`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]     = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition: `html_div`
[INFO] [stderr]    --> src/macros.rs:400:18
[INFO] [stderr]     |
[INFO] [stderr] 400 |     macro_rules! html_div {
[INFO] [stderr]     |                  ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_macros)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fmt`
[INFO] [stderr]  --> src/best_practices.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::fmt;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `service_name`
[INFO] [stderr]    --> src/error_handling.rs:901:29
[INFO] [stderr]     |
[INFO] [stderr] 901 |     fn handle_payment_error(service_name: &str, message: &str) {
[INFO] [stderr]     |                             ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_service_name`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method `is_empty` is never used
[INFO] [stderr]    --> src/basics.rs:131:12
[INFO] [stderr]     |
[INFO] [stderr] 113 |     impl ModernStack {
[INFO] [stderr]     |     ---------------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 131 |         fn is_empty(&self) -> bool {
[INFO] [stderr]     |            ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method `is_empty` is never used
[INFO] [stderr]    --> src/basics.rs:186:12
[INFO] [stderr]     |
[INFO] [stderr] 159 |     impl ModernQueue {
[INFO] [stderr]     |     ---------------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 186 |         fn is_empty(&self) -> bool {
[INFO] [stderr]     |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: fields `id`, `value`, and `neighbors` are never read
[INFO] [stderr]    --> src/ownership.rs:574:9
[INFO] [stderr]     |
[INFO] [stderr] 573 |     struct GraphNode {
[INFO] [stderr]     |            --------- fields in this struct
[INFO] [stderr] 574 |         id: u32,
[INFO] [stderr]     |         ^^
[INFO] [stderr] 575 |         value: String,
[INFO] [stderr]     |         ^^^^^
[INFO] [stderr] 576 |         neighbors: Vec<Weak<Node>>,
[INFO] [stderr]     |         ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `GraphNode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: method `add_neighbor` is never used
[INFO] [stderr]    --> src/ownership.rs:590:12
[INFO] [stderr]     |
[INFO] [stderr] 581 |     impl GraphNode {
[INFO] [stderr]     |     -------------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 590 |         fn add_neighbor(&self, _neighbor: &Node) {
[INFO] [stderr]     |            ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: fields `distance` and `travel_time` are never read
[INFO] [stderr]    --> src/types.rs:453:9
[INFO] [stderr]     |
[INFO] [stderr] 452 |     struct Route {
[INFO] [stderr]     |            ----- fields in this struct
[INFO] [stderr] 453 |         distance: f64,
[INFO] [stderr]     |         ^^^^^^^^
[INFO] [stderr] 454 |         travel_time: f64,
[INFO] [stderr]     |         ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `Route` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: trait `Drawable` is never used
[INFO] [stderr]    --> src/types.rs:592:11
[INFO] [stderr]     |
[INFO] [stderr] 592 |     trait Drawable {
[INFO] [stderr]     |           ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Red` is never constructed
[INFO] [stderr]    --> src/types.rs:600:12
[INFO] [stderr]     |
[INFO] [stderr] 600 |     struct Red;
[INFO] [stderr]     |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Blue` is never constructed
[INFO] [stderr]    --> src/types.rs:602:12
[INFO] [stderr]     |
[INFO] [stderr] 602 |     struct Blue;
[INFO] [stderr]     |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `RedCircle` is never constructed
[INFO] [stderr]    --> src/types.rs:605:12
[INFO] [stderr]     |
[INFO] [stderr] 605 |     struct RedCircle {
[INFO] [stderr]     |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `BlueRectangle` is never constructed
[INFO] [stderr]    --> src/types.rs:611:12
[INFO] [stderr]     |
[INFO] [stderr] 611 |     struct BlueRectangle {
[INFO] [stderr]     |            ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `disable` is never used
[INFO] [stderr]    --> src/types.rs:721:12
[INFO] [stderr]     |
[INFO] [stderr] 720 |     impl LightSwitch<Enabled> {
[INFO] [stderr]     |     ------------------------- method in this implementation
[INFO] [stderr] 721 |         fn disable(self) -> LightSwitch<Disabled> {
[INFO] [stderr]     |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `remove` is never used
[INFO] [stderr]    --> src/types.rs:827:12
[INFO] [stderr]     |
[INFO] [stderr] 815 |     impl Composite {
[INFO] [stderr]     |     -------------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 827 |         fn remove(&mut self, index: usize) {
[INFO] [stderr]     |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Container` is never constructed
[INFO] [stderr]    --> src/types.rs:954:12
[INFO] [stderr]     |
[INFO] [stderr] 954 |     struct Container<T> {
[INFO] [stderr]     |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `new`, `push`, `get`, and `len` are never used
[INFO] [stderr]    --> src/types.rs:960:12
[INFO] [stderr]     |
[INFO] [stderr] 959 |     impl<T> Container<T> {
[INFO] [stderr]     |     -------------------- associated items in this implementation
[INFO] [stderr] 960 |         fn new() -> Self {
[INFO] [stderr]     |            ^^^
[INFO] [stderr] ...
[INFO] [stderr] 967 |         fn push(&mut self, item: T) {
[INFO] [stderr]     |            ^^^^
[INFO] [stderr] ...
[INFO] [stderr] 971 |         fn get(&self, index: usize) -> Option<&T> {
[INFO] [stderr]     |            ^^^
[INFO] [stderr] ...
[INFO] [stderr] 975 |         fn len(&self) -> usize {
[INFO] [stderr]     |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `PublishedState` is never constructed
[INFO] [stderr]     --> src/types.rs:1059:12
[INFO] [stderr]      |
[INFO] [stderr] 1059 |     struct PublishedState;
[INFO] [stderr]      |            ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `get_content` is never used
[INFO] [stderr]     --> src/types.rs:1067:12
[INFO] [stderr]      |
[INFO] [stderr] 1066 |     impl SimpleDocument<PublishedState> {
[INFO] [stderr]      |     ----------------------------------- method in this implementation
[INFO] [stderr] 1067 |         fn get_content(&self) -> &str {
[INFO] [stderr]      |            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Seconds` is never constructed
[INFO] [stderr]     --> src/types.rs:1160:12
[INFO] [stderr]      |
[INFO] [stderr] 1160 |     struct Seconds(f64);
[INFO] [stderr]      |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `to_meters` is never used
[INFO] [stderr]     --> src/types.rs:1169:12
[INFO] [stderr]      |
[INFO] [stderr] 1168 |     impl Kilometers {
[INFO] [stderr]      |     --------------- method in this implementation
[INFO] [stderr] 1169 |         fn to_meters(self) -> Meters {
[INFO] [stderr]      |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variants `NetworkError` and `JsonParsingError` are never constructed
[INFO] [stderr]    --> src/error_handling.rs:274:9
[INFO] [stderr]     |
[INFO] [stderr] 270 |     enum NetworkError {
[INFO] [stderr]     |          ------------ variants in this enum
[INFO] [stderr] ...
[INFO] [stderr] 274 |         NetworkError(String),
[INFO] [stderr]     |         ^^^^^^^^^^^^
[INFO] [stderr] 275 |         JsonParsingError,
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `NetworkError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: function `fetch_user_data` is never used
[INFO] [stderr]    --> src/error_handling.rs:291:14
[INFO] [stderr]     |
[INFO] [stderr] 291 |     async fn fetch_user_data(user_id: u32) -> Result<String, NetworkError> {
[INFO] [stderr]     |              ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `read_config_file` is never used
[INFO] [stderr]    --> src/error_handling.rs:352:8
[INFO] [stderr]     |
[INFO] [stderr] 352 |     fn read_config_file() -> Result<String, io::Error> {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variants `InvalidType` and `FileParseError` are never constructed
[INFO] [stderr]    --> src/error_handling.rs:419:9
[INFO] [stderr]     |
[INFO] [stderr] 417 |     enum ConfigError {
[INFO] [stderr]     |          ----------- variants in this enum
[INFO] [stderr] 418 |         MissingField(String),
[INFO] [stderr] 419 |         InvalidType { field: String, expected: String, actual: String },
[INFO] [stderr]     |         ^^^^^^^^^^^
[INFO] [stderr] 420 |         InvalidValue { field: String, value: String, reason: String },
[INFO] [stderr] 421 |         FileParseError(String),
[INFO] [stderr]     |         ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `ConfigError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: fields `host`, `port`, `database_url`, and `debug` are never read
[INFO] [stderr]    --> src/error_handling.rs:442:9
[INFO] [stderr]     |
[INFO] [stderr] 441 |     struct AppConfig {
[INFO] [stderr]     |            --------- fields in this struct
[INFO] [stderr] 442 |         host: String,
[INFO] [stderr]     |         ^^^^
[INFO] [stderr] 443 |         port: u16,
[INFO] [stderr]     |         ^^^^
[INFO] [stderr] 444 |         database_url: String,
[INFO] [stderr]     |         ^^^^^^^^^^^^
[INFO] [stderr] 445 |         debug: bool,
[INFO] [stderr]     |         ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `AppConfig` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: variant `ForbiddenAction` is never constructed
[INFO] [stderr]    --> src/error_handling.rs:543:9
[INFO] [stderr]     |
[INFO] [stderr] 538 |     enum ValidationError {
[INFO] [stderr]     |          --------------- variant in this enum
[INFO] [stderr] ...
[INFO] [stderr] 543 |         ForbiddenAction(String),
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `ValidationError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: variant `TimeoutError` is never constructed
[INFO] [stderr]    --> src/error_handling.rs:666:9
[INFO] [stderr]     |
[INFO] [stderr] 663 |     enum ResourceError {
[INFO] [stderr]     |          ------------- variant in this enum
[INFO] [stderr] ...
[INFO] [stderr] 666 |         TimeoutError,
[INFO] [stderr]     |         ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `ResourceError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: fields `price`, `category`, and `stock` are never read
[INFO] [stderr]    --> src/modules.rs:345:17
[INFO] [stderr]     |
[INFO] [stderr] 342 |         pub struct Product {
[INFO] [stderr]     |                    ------- fields in this struct
[INFO] [stderr] ...
[INFO] [stderr] 345 |             pub price: f64,
[INFO] [stderr]     |                 ^^^^^
[INFO] [stderr] 346 |             pub category: String,
[INFO] [stderr]     |                 ^^^^^^^^
[INFO] [stderr] 347 |             pub stock: u32,
[INFO] [stderr]     |                 ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `Product` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: method `find_by_id` is never used
[INFO] [stderr]    --> src/modules.rs:352:16
[INFO] [stderr]     |
[INFO] [stderr] 351 |         pub trait UserRepository {
[INFO] [stderr]     |                   -------------- method in this trait
[INFO] [stderr] 352 |             fn find_by_id(&self, id: u64) -> Option<User>;
[INFO] [stderr]     |                ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `find_by_id` is never used
[INFO] [stderr]    --> src/modules.rs:359:16
[INFO] [stderr]     |
[INFO] [stderr] 358 |         pub trait ProductRepository {
[INFO] [stderr]     |                   ----------------- method in this trait
[INFO] [stderr] 359 |             fn find_by_id(&self, id: u64) -> Option<Product>;
[INFO] [stderr]     |                ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field `product_service` is never read
[INFO] [stderr]    --> src/modules.rs:595:13
[INFO] [stderr]     |
[INFO] [stderr] 593 |         pub struct ApiGateway {
[INFO] [stderr]     |                    ---------- field in this struct
[INFO] [stderr] 594 |             user_service: user_service::UserService,
[INFO] [stderr] 595 |             product_service: product_service::ProductService,
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variants `Processing` and `Completed` are never constructed
[INFO] [stderr]    --> src/macros.rs:794:9
[INFO] [stderr]     |
[INFO] [stderr] 792 |     enum SimpleState {
[INFO] [stderr]     |          ----------- variants in this enum
[INFO] [stderr] 793 |         Idle,
[INFO] [stderr] 794 |         Processing,
[INFO] [stderr]     |         ^^^^^^^^^^
[INFO] [stderr] 795 |         Completed,
[INFO] [stderr]     |         ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `SimpleState` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: fields `id` and `items` are never read
[INFO] [stderr]    --> src/testing.rs:752:13
[INFO] [stderr]     |
[INFO] [stderr] 751 |     pub struct Order {
[INFO] [stderr]     |                ----- fields in this struct
[INFO] [stderr] 752 |         pub id: u32,
[INFO] [stderr]     |             ^^
[INFO] [stderr] 753 |         pub items: Vec<OrderItem>,
[INFO] [stderr]     |             ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `Order` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: field `product_id` is never read
[INFO] [stderr]    --> src/testing.rs:760:13
[INFO] [stderr]     |
[INFO] [stderr] 759 |     pub struct OrderItem {
[INFO] [stderr]     |                --------- field in this struct
[INFO] [stderr] 760 |         pub product_id: u32,
[INFO] [stderr]     |             ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `OrderItem` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: variant `Cancelled` is never constructed
[INFO] [stderr]    --> src/testing.rs:769:9
[INFO] [stderr]     |
[INFO] [stderr] 766 |     pub enum OrderStatus {
[INFO] [stderr]     |              ----------- variant in this enum
[INFO] [stderr] ...
[INFO] [stderr] 769 |         Cancelled,
[INFO] [stderr]     |         ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `OrderStatus` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: multiple fields are never read
[INFO] [stderr]   --> src/advanced_patterns.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub struct DatabaseConfig {
[INFO] [stderr]    |            -------------- fields in this struct
[INFO] [stderr] 15 |     host: String,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 16 |     port: u16,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 17 |     database: String,
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 18 |     username: String,
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 19 |     password: String,
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 20 |     pool_size: usize,
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr] 21 |     timeout_secs: u64,
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `DatabaseConfig` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: type alias `AppResult` is never used
[INFO] [stderr]   --> src/best_practices.rs:16:10
[INFO] [stderr]    |
[INFO] [stderr] 16 |     type AppResult<T> = anyhow::Result<T>;
[INFO] [stderr]    |          ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variants `UserNotFound` and `PermissionDenied` are never constructed
[INFO] [stderr]   --> src/best_practices.rs:22:9
[INFO] [stderr]    |
[INFO] [stderr] 20 |     enum BusinessError {
[INFO] [stderr]    |          ------------- variants in this enum
[INFO] [stderr] 21 |         #[error("用户不存在: {0}")]
[INFO] [stderr] 22 |         UserNotFound(String),
[INFO] [stderr]    |         ^^^^^^^^^^^^
[INFO] [stderr] 23 |         #[error("权限不足: {0}")]
[INFO] [stderr] 24 |         PermissionDenied(String),
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `BusinessError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: function `process_user_data` is never used
[INFO] [stderr]   --> src/best_practices.rs:43:8
[INFO] [stderr]    |
[INFO] [stderr] 43 |     fn process_user_data(user_id: &str) -> AppResult<String> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field `value` is never read
[INFO] [stderr]    --> src/best_practices.rs:202:9
[INFO] [stderr]     |
[INFO] [stderr] 201 |     struct Node {
[INFO] [stderr]     |            ---- field in this struct
[INFO] [stderr] 202 |         value: i32,
[INFO] [stderr]     |         ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `Node` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: fields `a`, `b`, `c`, `d`, and `e` are never read
[INFO] [stderr]    --> src/best_practices.rs:231:9
[INFO] [stderr]     |
[INFO] [stderr] 230 |     struct UnoptimizedStruct {
[INFO] [stderr]     |            ----------------- fields in this struct
[INFO] [stderr] 231 |         a: u8,    // 1字节
[INFO] [stderr]     |         ^
[INFO] [stderr] 232 |         b: u64,   // 8字节 (需要8字节对齐)
[INFO] [stderr]     |         ^
[INFO] [stderr] 233 |         c: u32,   // 4字节
[INFO] [stderr]     |         ^
[INFO] [stderr] 234 |         d: u16,   // 2字节
[INFO] [stderr]     |         ^
[INFO] [stderr] 235 |         e: u8,    // 1字节
[INFO] [stderr]     |         ^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `ApiError` is never used
[INFO] [stderr]    --> src/best_practices.rs:362:14
[INFO] [stderr]     |
[INFO] [stderr] 362 |     pub enum ApiError {
[INFO] [stderr]     |              ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias `ApiResult` is never used
[INFO] [stderr]    --> src/best_practices.rs:380:10
[INFO] [stderr]     |
[INFO] [stderr] 380 |     type ApiResult<T> = Result<T, ApiError>;
[INFO] [stderr]     |          ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait `Validator` is never used
[INFO] [stderr]    --> src/best_practices.rs:383:15
[INFO] [stderr]     |
[INFO] [stderr] 383 |     pub trait Validator {
[INFO] [stderr]     |               ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `return_first_element` is never used
[INFO] [stderr]   --> src/pitfalls.rs:30:8
[INFO] [stderr]    |
[INFO] [stderr] 30 |     fn return_first_element() -> i32 {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Node` is never constructed
[INFO] [stderr]    --> src/pitfalls.rs:257:12
[INFO] [stderr]     |
[INFO] [stderr] 257 |     struct Node {
[INFO] [stderr]     |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `SafeNode` is never constructed
[INFO] [stderr]    --> src/pitfalls.rs:286:12
[INFO] [stderr]     |
[INFO] [stderr] 286 |     struct SafeNode {
[INFO] [stderr]     |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: fields `data` and `metadata` are never read
[INFO] [stderr]    --> src/pitfalls.rs:296:9
[INFO] [stderr]     |
[INFO] [stderr] 295 |     struct LargeData {
[INFO] [stderr]     |            --------- fields in this struct
[INFO] [stderr] 296 |         data: Vec<u8>,
[INFO] [stderr]     |         ^^^^
[INFO] [stderr] 297 |         metadata: Vec<String>,
[INFO] [stderr]     |         ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `rust_learn` (lib) generated 50 warnings (run `cargo fix --lib -p rust_learn` to apply 2 suggestions)
[INFO] [stderr] warning: unused import: `super::*`
[INFO] [stderr]    --> src/testing.rs:282:9
[INFO] [stderr]     |
[INFO] [stderr] 282 |     use super::*;
[INFO] [stderr]     |         ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fmt`
[INFO] [stderr]  --> src/best_practices.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::fmt;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `validate_email_correct_format` is never used
[INFO] [stderr]    --> src/best_practices.rs:428:12
[INFO] [stderr]     |
[INFO] [stderr] 428 |         fn validate_email_correct_format() {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `test_config_functionality` is never used
[INFO] [stderr]    --> src/best_practices.rs:434:12
[INFO] [stderr]     |
[INFO] [stderr] 434 |         fn test_config_functionality() {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `panics_on_invalid_input` is never used
[INFO] [stderr]    --> src/best_practices.rs:442:12
[INFO] [stderr]     |
[INFO] [stderr] 442 |         fn panics_on_invalid_input() {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `rust_learn` (lib test) generated 54 warnings (49 duplicates) (run `cargo fix --lib -p rust_learn --tests` to apply 2 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.50s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/rust_learn-8574aea7c4642d07)
[INFO] [stdout] 
[INFO] [stdout] running 18 tests
[INFO] [stdout] test testing::conditional_tests::test_platform_linux ... ok
[INFO] [stdout] test testing::tests::test_internal_adder ... ok
[INFO] [stdout] test testing::tests::test_add_two_negative ... ok
[INFO] [stdout] test testing::tests::test_add_two_positive ... ok
[INFO] [stdout] test testing::tests::test_approximate_comparison ... ok
[INFO] [stdout] test testing::tests::test_string_operations ... ok
[INFO] [stdout] test testing::tests::test_result_handling ... ok
[INFO] [stdout] test testing::tests::test_user_creation_invalid_email ... ok
[INFO] [stdout] test testing::tests::test_user_creation_minor ... ok
[INFO] [stdout] test testing::tests::test_user_methods ... ok
[INFO] [stdout] test testing::tests::test_option_handling ... ok
[INFO] [stdout] test testing::tests::test_user_creation ... ok
[INFO] [stdout] test testing::benchmark_tests::benchmark_data_structure_operations ... ok
[INFO] [stdout] test testing::performance_tests::test_user_manager_performance ... ok
[INFO] [stdout] test testing::benchmark_tests::benchmark_string_concatenation ... ok
[INFO] [stdout] test testing::tests::test_validate_email ... FAILED
[INFO] [stdout] test testing::benchmark_tests::benchmark_iteration_patterns ... FAILED
[INFO] [stdout] test testing::tests::test_panic_case - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- testing::tests::test_validate_email stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'testing::tests::test_validate_email' (34) panicked at src/testing.rs:81:9:
[INFO] [stdout] assertion failed: !validate_email("@domain.com")
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x568f273e92d2 - std[3f03f8b59f91bef1]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x568f273e92d2 - std[3f03f8b59f91bef1]::backtrace_rs::backtrace::trace_unsynchronized::<std[3f03f8b59f91bef1]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x568f273e92d2 - std[3f03f8b59f91bef1]::sys::backtrace::_print_fmt
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/sys/backtrace.rs:74:9
[INFO] [stdout]    3:     0x568f273e92d2 - <<std[3f03f8b59f91bef1]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[585f66e14d78f9ba]::fmt::Display>::fmt
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/sys/backtrace.rs:44:26
[INFO] [stdout]    4:     0x568f273fe2ca - <core[585f66e14d78f9ba]::fmt::rt::Argument>::fmt
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/core/src/fmt/rt.rs:152:76
[INFO] [stdout]    5:     0x568f273fe2ca - core[585f66e14d78f9ba]::fmt::write
[INFO] [stdout]    6:     0x568f273ee0d6 - std[3f03f8b59f91bef1]::io::default_write_fmt::<alloc[15e7b27aba85d2e2]::vec::Vec<u8>>
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x568f273ee0d6 - <alloc[15e7b27aba85d2e2]::vec::Vec<u8> as std[3f03f8b59f91bef1]::io::Write>::write_fmt
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/io/mod.rs:1994:13
[INFO] [stdout]    8:     0x568f273c798f - <std[3f03f8b59f91bef1]::sys::backtrace::BacktraceLock>::print
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/sys/backtrace.rs:47:9
[INFO] [stdout]    9:     0x568f273c798f - std[3f03f8b59f91bef1]::panicking::default_hook::{closure#0}
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/panicking.rs:292:27
[INFO] [stdout]   10:     0x568f273e1529 - std[3f03f8b59f91bef1]::panicking::default_hook
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/panicking.rs:316:9
[INFO] [stdout]   11:     0x568f2736f79e - <alloc[15e7b27aba85d2e2]::boxed::Box<dyn for<'a, 'b> core[585f66e14d78f9ba]::ops::function::Fn<(&'a std[3f03f8b59f91bef1]::panic::PanicHookInfo<'b>,), Output = ()> + core[585f66e14d78f9ba]::marker::Sync + core[585f66e14d78f9ba]::marker::Send> as core[585f66e14d78f9ba]::ops::function::Fn<(&std[3f03f8b59f91bef1]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/alloc/src/boxed.rs:2220:9
[INFO] [stdout]   12:     0x568f2736f79e - test[30224e0cb089acd2]::test_main_with_exit_callback::<test[30224e0cb089acd2]::test_main::{closure#0}>::{closure#0}
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x568f273e16e2 - <alloc[15e7b27aba85d2e2]::boxed::Box<dyn for<'a, 'b> core[585f66e14d78f9ba]::ops::function::Fn<(&'a std[3f03f8b59f91bef1]::panic::PanicHookInfo<'b>,), Output = ()> + core[585f66e14d78f9ba]::marker::Sync + core[585f66e14d78f9ba]::marker::Send> as core[585f66e14d78f9ba]::ops::function::Fn<(&std[3f03f8b59f91bef1]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/alloc/src/boxed.rs:2220:9
[INFO] [stdout]   14:     0x568f273e16e2 - std[3f03f8b59f91bef1]::panicking::panic_with_hook
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/panicking.rs:833:13
[INFO] [stdout]   15:     0x568f273c7a7a - std[3f03f8b59f91bef1]::panicking::panic_handler::{closure#0}
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/panicking.rs:691:13
[INFO] [stdout]   16:     0x568f273bcc39 - std[3f03f8b59f91bef1]::sys::backtrace::__rust_end_short_backtrace::<std[3f03f8b59f91bef1]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/sys/backtrace.rs:182:18
[INFO] [stdout]   17:     0x568f273c889d - __rustc[caa99d26c7bae192]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/panicking.rs:689:5
[INFO] [stdout]   18:     0x568f273fe93c - core[585f66e14d78f9ba]::panicking::panic_fmt
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/core/src/panicking.rs:80:14
[INFO] [stdout]   19:     0x568f273fe902 - core[585f66e14d78f9ba]::panicking::panic
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/core/src/panicking.rs:150:5
[INFO] [stdout]   20:     0x568f27362bed - rust_learn[4de79d4e24b8bf42]::testing::tests::test_validate_email
[INFO] [stdout]                                at /opt/rustwide/workdir/src/testing.rs:81:9
[INFO] [stdout]   21:     0x568f27361e47 - rust_learn[4de79d4e24b8bf42]::testing::tests::test_validate_email::{closure#0}
[INFO] [stdout]                                at /opt/rustwide/workdir/src/testing.rs:77:29
[INFO] [stdout]   22:     0x568f2735c236 - <rust_learn[4de79d4e24b8bf42]::testing::tests::test_validate_email::{closure#0} as core[585f66e14d78f9ba]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   23:     0x568f27363b4b - <fn() -> core[585f66e14d78f9ba]::result::Result<(), alloc[15e7b27aba85d2e2]::string::String> as core[585f66e14d78f9ba]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x568f27363b4b - test[30224e0cb089acd2]::__rust_begin_short_backtrace::<core[585f66e14d78f9ba]::result::Result<(), alloc[15e7b27aba85d2e2]::string::String>, fn() -> core[585f66e14d78f9ba]::result::Result<(), alloc[15e7b27aba85d2e2]::string::String>>
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/test/src/lib.rs:663:18
[INFO] [stdout]   25:     0x568f273703aa - test[30224e0cb089acd2]::run_test_in_process::{closure#0}
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/test/src/lib.rs:686:74
[INFO] [stdout]   26:     0x568f273703aa - <core[585f66e14d78f9ba]::panic::unwind_safe::AssertUnwindSafe<test[30224e0cb089acd2]::run_test_in_process::{closure#0}> as core[585f66e14d78f9ba]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   27:     0x568f273703aa - std[3f03f8b59f91bef1]::panicking::catch_unwind::do_call::<core[585f66e14d78f9ba]::panic::unwind_safe::AssertUnwindSafe<test[30224e0cb089acd2]::run_test_in_process::{closure#0}>, core[585f66e14d78f9ba]::result::Result<(), alloc[15e7b27aba85d2e2]::string::String>>
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/panicking.rs:581:40
[INFO] [stdout]   28:     0x568f273703aa - std[3f03f8b59f91bef1]::panicking::catch_unwind::<core[585f66e14d78f9ba]::result::Result<(), alloc[15e7b27aba85d2e2]::string::String>, core[585f66e14d78f9ba]::panic::unwind_safe::AssertUnwindSafe<test[30224e0cb089acd2]::run_test_in_process::{closure#0}>>
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/panicking.rs:544:19
[INFO] [stdout]   29:     0x568f273703aa - std[3f03f8b59f91bef1]::panic::catch_unwind::<core[585f66e14d78f9ba]::panic::unwind_safe::AssertUnwindSafe<test[30224e0cb089acd2]::run_test_in_process::{closure#0}>, core[585f66e14d78f9ba]::result::Result<(), alloc[15e7b27aba85d2e2]::string::String>>
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/panic.rs:359:14
[INFO] [stdout]   30:     0x568f273703aa - test[30224e0cb089acd2]::run_test_in_process
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/test/src/lib.rs:686:27
[INFO] [stdout]   31:     0x568f273703aa - test[30224e0cb089acd2]::run_test::{closure#0}
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/test/src/lib.rs:607:43
[INFO] [stdout]   32:     0x568f2736a874 - test[30224e0cb089acd2]::run_test::{closure#1}
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/test/src/lib.rs:637:41
[INFO] [stdout]   33:     0x568f2736a874 - std[3f03f8b59f91bef1]::sys::backtrace::__rust_begin_short_backtrace::<test[30224e0cb089acd2]::run_test::{closure#1}, ()>
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/sys/backtrace.rs:166:18
[INFO] [stdout]   34:     0x568f27372ea2 - std[3f03f8b59f91bef1]::thread::lifecycle::spawn_unchecked::<test[30224e0cb089acd2]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/thread/lifecycle.rs:91:13
[INFO] [stdout]   35:     0x568f27372ea2 - <core[585f66e14d78f9ba]::panic::unwind_safe::AssertUnwindSafe<std[3f03f8b59f91bef1]::thread::lifecycle::spawn_unchecked<test[30224e0cb089acd2]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}> as core[585f66e14d78f9ba]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   36:     0x568f27372ea2 - std[3f03f8b59f91bef1]::panicking::catch_unwind::do_call::<core[585f66e14d78f9ba]::panic::unwind_safe::AssertUnwindSafe<std[3f03f8b59f91bef1]::thread::lifecycle::spawn_unchecked<test[30224e0cb089acd2]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/panicking.rs:581:40
[INFO] [stdout]   37:     0x568f27372ea2 - std[3f03f8b59f91bef1]::panicking::catch_unwind::<(), core[585f66e14d78f9ba]::panic::unwind_safe::AssertUnwindSafe<std[3f03f8b59f91bef1]::thread::lifecycle::spawn_unchecked<test[30224e0cb089acd2]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>>
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/panicking.rs:544:19
[INFO] [stdout]   38:     0x568f27372ea2 - std[3f03f8b59f91bef1]::panic::catch_unwind::<core[585f66e14d78f9ba]::panic::unwind_safe::AssertUnwindSafe<std[3f03f8b59f91bef1]::thread::lifecycle::spawn_unchecked<test[30224e0cb089acd2]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/panic.rs:359:14
[INFO] [stdout]   39:     0x568f27372ea2 - std[3f03f8b59f91bef1]::thread::lifecycle::spawn_unchecked::<test[30224e0cb089acd2]::run_test::{closure#1}, ()>::{closure#1}
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/thread/lifecycle.rs:89:26
[INFO] [stdout]   40:     0x568f27372ea2 - <std[3f03f8b59f91bef1]::thread::lifecycle::spawn_unchecked<test[30224e0cb089acd2]::run_test::{closure#1}, ()>::{closure#1} as core[585f66e14d78f9ba]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   41:     0x568f273e8b7f - <alloc[15e7b27aba85d2e2]::boxed::Box<dyn core[585f66e14d78f9ba]::ops::function::FnOnce<(), Output = ()> + core[585f66e14d78f9ba]::marker::Send> as core[585f66e14d78f9ba]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/alloc/src/boxed.rs:2206:9
[INFO] [stdout]   42:     0x568f273e8b7f - <std[3f03f8b59f91bef1]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/sys/thread/unix.rs:119:17
[INFO] [stdout]   43:     0x7939af508aa4 - <unknown>
[INFO] [stdout]   44:     0x7939af595a64 - clone
[INFO] [stdout]   45:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] ---- testing::benchmark_tests::benchmark_iteration_patterns stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'testing::benchmark_tests::benchmark_iteration_patterns' (18) panicked at src/testing.rs:722:13:
[INFO] [stdout] attempt to add with overflow
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x568f273e92d2 - std[3f03f8b59f91bef1]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x568f273e92d2 - std[3f03f8b59f91bef1]::backtrace_rs::backtrace::trace_unsynchronized::<std[3f03f8b59f91bef1]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x568f273e92d2 - std[3f03f8b59f91bef1]::sys::backtrace::_print_fmt
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/sys/backtrace.rs:74:9
[INFO] [stdout]    3:     0x568f273e92d2 - <<std[3f03f8b59f91bef1]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[585f66e14d78f9ba]::fmt::Display>::fmt
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/sys/backtrace.rs:44:26
[INFO] [stdout]    4:     0x568f273fe2ca - <core[585f66e14d78f9ba]::fmt::rt::Argument>::fmt
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/core/src/fmt/rt.rs:152:76
[INFO] [stdout]    5:     0x568f273fe2ca - core[585f66e14d78f9ba]::fmt::write
[INFO] [stdout]    6:     0x568f273ee0d6 - std[3f03f8b59f91bef1]::io::default_write_fmt::<alloc[15e7b27aba85d2e2]::vec::Vec<u8>>
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x568f273ee0d6 - <alloc[15e7b27aba85d2e2]::vec::Vec<u8> as std[3f03f8b59f91bef1]::io::Write>::write_fmt
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/io/mod.rs:1994:13
[INFO] [stdout]    8:     0x568f273c798f - <std[3f03f8b59f91bef1]::sys::backtrace::BacktraceLock>::print
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/sys/backtrace.rs:47:9
[INFO] [stdout]    9:     0x568f273c798f - std[3f03f8b59f91bef1]::panicking::default_hook::{closure#0}
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/panicking.rs:292:27
[INFO] [stdout]   10:     0x568f273e1529 - std[3f03f8b59f91bef1]::panicking::default_hook
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/panicking.rs:316:9
[INFO] [stdout]   11:     0x568f2736f79e - <alloc[15e7b27aba85d2e2]::boxed::Box<dyn for<'a, 'b> core[585f66e14d78f9ba]::ops::function::Fn<(&'a std[3f03f8b59f91bef1]::panic::PanicHookInfo<'b>,), Output = ()> + core[585f66e14d78f9ba]::marker::Sync + core[585f66e14d78f9ba]::marker::Send> as core[585f66e14d78f9ba]::ops::function::Fn<(&std[3f03f8b59f91bef1]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/alloc/src/boxed.rs:2220:9
[INFO] [stdout]   12:     0x568f2736f79e - test[30224e0cb089acd2]::test_main_with_exit_callback::<test[30224e0cb089acd2]::test_main::{closure#0}>::{closure#0}
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x568f273e16e2 - <alloc[15e7b27aba85d2e2]::boxed::Box<dyn for<'a, 'b> core[585f66e14d78f9ba]::ops::function::Fn<(&'a std[3f03f8b59f91bef1]::panic::PanicHookInfo<'b>,), Output = ()> + core[585f66e14d78f9ba]::marker::Sync + core[585f66e14d78f9ba]::marker::Send> as core[585f66e14d78f9ba]::ops::function::Fn<(&std[3f03f8b59f91bef1]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/alloc/src/boxed.rs:2220:9
[INFO] [stdout]   14:     0x568f273e16e2 - std[3f03f8b59f91bef1]::panicking::panic_with_hook
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/panicking.rs:833:13
[INFO] [stdout]   15:     0x568f273c7a7a - std[3f03f8b59f91bef1]::panicking::panic_handler::{closure#0}
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/panicking.rs:691:13
[INFO] [stdout]   16:     0x568f273bcc39 - std[3f03f8b59f91bef1]::sys::backtrace::__rust_end_short_backtrace::<std[3f03f8b59f91bef1]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/sys/backtrace.rs:182:18
[INFO] [stdout]   17:     0x568f273c889d - __rustc[caa99d26c7bae192]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/panicking.rs:689:5
[INFO] [stdout]   18:     0x568f273fe93c - core[585f66e14d78f9ba]::panicking::panic_fmt
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/core/src/panicking.rs:80:14
[INFO] [stdout]   19:     0x568f273ff919 - core[585f66e14d78f9ba]::panicking::panic_const::panic_const_add_overflow
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/core/src/panicking.rs:175:17
[INFO] [stdout]   20:     0x568f27360983 - rust_learn[4de79d4e24b8bf42]::testing::benchmark_tests::benchmark_iteration_patterns
[INFO] [stdout]                                at /opt/rustwide/workdir/src/testing.rs:722:13
[INFO] [stdout]   21:     0x568f273601e7 - rust_learn[4de79d4e24b8bf42]::testing::benchmark_tests::benchmark_iteration_patterns::{closure#0}
[INFO] [stdout]                                at /opt/rustwide/workdir/src/testing.rs:715:38
[INFO] [stdout]   22:     0x568f2735bff6 - <rust_learn[4de79d4e24b8bf42]::testing::benchmark_tests::benchmark_iteration_patterns::{closure#0} as core[585f66e14d78f9ba]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   23:     0x568f27363b4b - <fn() -> core[585f66e14d78f9ba]::result::Result<(), alloc[15e7b27aba85d2e2]::string::String> as core[585f66e14d78f9ba]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x568f27363b4b - test[30224e0cb089acd2]::__rust_begin_short_backtrace::<core[585f66e14d78f9ba]::result::Result<(), alloc[15e7b27aba85d2e2]::string::String>, fn() -> core[585f66e14d78f9ba]::result::Result<(), alloc[15e7b27aba85d2e2]::string::String>>
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/test/src/lib.rs:663:18
[INFO] [stdout]   25:     0x568f273703aa - test[30224e0cb089acd2]::run_test_in_process::{closure#0}
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/test/src/lib.rs:686:74
[INFO] [stdout]   26:     0x568f273703aa - <core[585f66e14d78f9ba]::panic::unwind_safe::AssertUnwindSafe<test[30224e0cb089acd2]::run_test_in_process::{closure#0}> as core[585f66e14d78f9ba]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   27:     0x568f273703aa - std[3f03f8b59f91bef1]::panicking::catch_unwind::do_call::<core[585f66e14d78f9ba]::panic::unwind_safe::AssertUnwindSafe<test[30224e0cb089acd2]::run_test_in_process::{closure#0}>, core[585f66e14d78f9ba]::result::Result<(), alloc[15e7b27aba85d2e2]::string::String>>
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/panicking.rs:581:40
[INFO] [stdout]   28:     0x568f273703aa - std[3f03f8b59f91bef1]::panicking::catch_unwind::<core[585f66e14d78f9ba]::result::Result<(), alloc[15e7b27aba85d2e2]::string::String>, core[585f66e14d78f9ba]::panic::unwind_safe::AssertUnwindSafe<test[30224e0cb089acd2]::run_test_in_process::{closure#0}>>
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/panicking.rs:544:19
[INFO] [stdout]   29:     0x568f273703aa - std[3f03f8b59f91bef1]::panic::catch_unwind::<core[585f66e14d78f9ba]::panic::unwind_safe::AssertUnwindSafe<test[30224e0cb089acd2]::run_test_in_process::{closure#0}>, core[585f66e14d78f9ba]::result::Result<(), alloc[15e7b27aba85d2e2]::string::String>>
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/panic.rs:359:14
[INFO] [stdout]   30:     0x568f273703aa - test[30224e0cb089acd2]::run_test_in_process
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/test/src/lib.rs:686:27
[INFO] [stdout]   31:     0x568f273703aa - test[30224e0cb089acd2]::run_test::{closure#0}
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/test/src/lib.rs:607:43
[INFO] [stdout]   32:     0x568f2736a874 - test[30224e0cb089acd2]::run_test::{closure#1}
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/test/src/lib.rs:637:41
[INFO] [stdout]   33:     0x568f2736a874 - std[3f03f8b59f91bef1]::sys::backtrace::__rust_begin_short_backtrace::<test[30224e0cb089acd2]::run_test::{closure#1}, ()>
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/sys/backtrace.rs:166:18
[INFO] [stdout]   34:     0x568f27372ea2 - std[3f03f8b59f91bef1]::thread::lifecycle::spawn_unchecked::<test[30224e0cb089acd2]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/thread/lifecycle.rs:91:13
[INFO] [stdout]   35:     0x568f27372ea2 - <core[585f66e14d78f9ba]::panic::unwind_safe::AssertUnwindSafe<std[3f03f8b59f91bef1]::thread::lifecycle::spawn_unchecked<test[30224e0cb089acd2]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}> as core[585f66e14d78f9ba]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   36:     0x568f27372ea2 - std[3f03f8b59f91bef1]::panicking::catch_unwind::do_call::<core[585f66e14d78f9ba]::panic::unwind_safe::AssertUnwindSafe<std[3f03f8b59f91bef1]::thread::lifecycle::spawn_unchecked<test[30224e0cb089acd2]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/panicking.rs:581:40
[INFO] [stdout]   37:     0x568f27372ea2 - std[3f03f8b59f91bef1]::panicking::catch_unwind::<(), core[585f66e14d78f9ba]::panic::unwind_safe::AssertUnwindSafe<std[3f03f8b59f91bef1]::thread::lifecycle::spawn_unchecked<test[30224e0cb089acd2]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>>
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/panicking.rs:544:19
[INFO] [stdout]   38:     0x568f27372ea2 - std[3f03f8b59f91bef1]::panic::catch_unwind::<core[585f66e14d78f9ba]::panic::unwind_safe::AssertUnwindSafe<std[3f03f8b59f91bef1]::thread::lifecycle::spawn_unchecked<test[30224e0cb089acd2]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/panic.rs:359:14
[INFO] [stdout]   39:     0x568f27372ea2 - std[3f03f8b59f91bef1]::thread::lifecycle::spawn_unchecked::<test[30224e0cb089acd2]::run_test::{closure#1}, ()>::{closure#1}
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/thread/lifecycle.rs:89:26
[INFO] [stdout]   40:     0x568f27372ea2 - <std[3f03f8b59f91bef1]::thread::lifecycle::spawn_unchecked<test[30224e0cb089acd2]::run_test::{closure#1}, ()>::{closure#1} as core[585f66e14d78f9ba]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   41:     0x568f273e8b7f - <alloc[15e7b27aba85d2e2]::boxed::Box<dyn core[585f66e14d78f9ba]::ops::function::FnOnce<(), Output = ()> + core[585f66e14d78f9ba]::marker::Send> as core[585f66e14d78f9ba]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/alloc/src/boxed.rs:2206:9
[INFO] [stdout]   42:     0x568f273e8b7f - <std[3f03f8b59f91bef1]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/sys/thread/unix.rs:119:17
[INFO] [stdout]   43:     0x7939af508aa4 - <unknown>
[INFO] [stdout]   44:     0x7939af595a64 - clone
[INFO] [stdout]   45:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     testing::benchmark_tests::benchmark_iteration_patterns
[INFO] [stdout]     testing::tests::test_validate_email
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 16 passed; 2 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.45s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] running `Command { std: "docker" "inspect" "804d1c4b6e11ff2b3e6e5ef2a41ed8e2425f151d671e31c166dee40be5649506", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "804d1c4b6e11ff2b3e6e5ef2a41ed8e2425f151d671e31c166dee40be5649506", kill_on_drop: false }`
[INFO] [stdout] 804d1c4b6e11ff2b3e6e5ef2a41ed8e2425f151d671e31c166dee40be5649506
