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[INFO] crate git repo https://github.com/crazcalm/book_examples already has a lockfile, it will not be regenerated
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[INFO] [stderr] warning: the cargo feature `edition2024` has been stabilized in the 1.85 release and is no longer necessary to be listed in the manifest
[INFO] [stderr]   See https://doc.rust-lang.org/nightly/cargo/reference/manifest.html#the-edition-field for more information about using this feature.
[INFO] [stderr]     Blocking waiting for file lock on package cache
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[INFO] [stderr] warning: the cargo feature `edition2024` has been stabilized in the 1.85 release and is no longer necessary to be listed in the manifest
[INFO] [stderr]   See https://doc.rust-lang.org/nightly/cargo/reference/manifest.html#the-edition-field for more information about using this feature.
[INFO] [stderr]     Checking book_examples v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: enum `Suit` is never used
[INFO] [stdout]  --> src/lib.rs:6:6
[INFO] [stdout]   |
[INFO] [stdout] 6 | enum Suit {
[INFO] [stdout]   |      ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Card` is never constructed
[INFO] [stdout]   --> src/lib.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | struct Card {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/lib.rs:37:8
[INFO] [stdout]    |
[INFO] [stdout] 36 | impl Card {
[INFO] [stdout]    | --------- associated function in this implementation
[INFO] [stdout] 37 |     fn new(rank: u8, suit: Suit) -> Result<Self, &'static str> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `PokerHandType` is never used
[INFO] [stdout]   --> src/lib.rs:71:6
[INFO] [stdout]    |
[INFO] [stdout] 71 | enum PokerHandType {
[INFO] [stdout]    |      ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `PokerHand` is never constructed
[INFO] [stdout]   --> src/lib.rs:85:8
[INFO] [stdout]    |
[INFO] [stdout] 85 | struct PokerHand {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> src/lib.rs:118:8
[INFO] [stdout]     |
[INFO] [stdout] 117 | impl PokerHand {
[INFO] [stdout]     | -------------- associated items in this implementation
[INFO] [stdout] 118 |     fn new() -> Self {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 125 |     fn add_card(&mut self, card: Card) -> Result<(), &'static str> {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 135 |     fn card_rank_histogram(&self) -> Vec<(u8, usize)> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 153 |     fn have_flush(&self) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 167 |     fn have_straight(&self) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 191 |     fn set_hand_type(&mut self) -> Result<(), &'static str> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 239 |     fn sort_hand(&mut self) -> Result<(), String> {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `add_card` are never used
[INFO] [stdout]    --> src/lib.rs:118:8
[INFO] [stdout]     |
[INFO] [stdout] 117 | impl PokerHand {
[INFO] [stdout]     | -------------- associated items in this implementation
[INFO] [stdout] 118 |     fn new() -> Self {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 125 |     fn add_card(&mut self, card: Card) -> Result<(), &'static str> {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Employee` is never constructed
[INFO] [stdout]  --> examples/example9-3.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | struct Employee {
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Employee` is never constructed
[INFO] [stdout]  --> examples/example9-1.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | struct Employee {
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Spade` is never constructed
[INFO] [stdout]  --> examples/example12-4.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | enum Suit {
[INFO] [stdout]   |      ---- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 9 |     Spade,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Suit` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Club`, `Spade`, and `Diamond` are never constructed
[INFO] [stdout]  --> examples/example11-2.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | enum Suit {
[INFO] [stdout]   |      ---- variants in this enum
[INFO] [stdout] 6 |     Heart,
[INFO] [stdout] 7 |     Club,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 8 |     Spade,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 9 |     Diamond,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Suit` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple variants are never constructed
[INFO] [stdout]   --> examples/example11-2.rs:66:5
[INFO] [stdout]    |
[INFO] [stdout] 65 | enum PokerHandType {
[INFO] [stdout]    |      ------------- variants in this enum
[INFO] [stdout] 66 |     HighCard,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 67 |     OnePair,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 68 |     TwoPair,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 69 |     ThreeOfAKind,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 70 |     Straight,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 71 |     Flush,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 72 |     FullHouse,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 73 |     FourOfAKind,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 74 |     StraightFlush,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 75 |     RoyalFlush,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `PokerHandType` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `poker_hand_type` is never read
[INFO] [stdout]   --> examples/example11-2.rs:81:5
[INFO] [stdout]    |
[INFO] [stdout] 79 | struct PokerHand {
[INFO] [stdout]    |        --------- field in this struct
[INFO] [stdout] 80 |     cards: Vec<Card>,
[INFO] [stdout] 81 |     poker_hand_type: Option<PokerHandType>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `PokerHand` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `one`
[INFO] [stdout]  --> examples/example1-2.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 2 |     let one: u8 = 1;
[INFO] [stdout]   |         ^^^ help: if this is intentional, prefix it with an underscore: `_one`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `two`
[INFO] [stdout]  --> examples/example1-2.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 |     let two: i32 = 2;
[INFO] [stdout]   |         ^^^ help: if this is intentional, prefix it with an underscore: `_two`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name` and `years_of_service` are never read
[INFO] [stdout]  --> examples/example7-2.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | struct Employee {
[INFO] [stdout]   |        -------- fields in this struct
[INFO] [stdout] 3 |     name: String,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 4 |     years_of_service: u32,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Employee` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Club`, `Spade`, and `Diamond` are never constructed
[INFO] [stdout]   --> examples/example11-4.rs:8:5
[INFO] [stdout]    |
[INFO] [stdout] 6  | enum Suit {
[INFO] [stdout]    |      ---- variants in this enum
[INFO] [stdout] 7  |     Heart,
[INFO] [stdout] 8  |     Club,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 9  |     Spade,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 10 |     Diamond,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Suit` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple variants are never constructed
[INFO] [stdout]   --> examples/example11-4.rs:67:5
[INFO] [stdout]    |
[INFO] [stdout] 66 | enum PokerHandType {
[INFO] [stdout]    |      ------------- variants in this enum
[INFO] [stdout] 67 |     HighCard,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 68 |     OnePair,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 69 |     TwoPair,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 70 |     ThreeOfAKind,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 71 |     Straight,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 72 |     Flush,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 73 |     FullHouse,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 74 |     FourOfAKind,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 75 |     StraightFlush,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 76 |     RoyalFlush,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `PokerHandType` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `poker_hand_type` is never read
[INFO] [stdout]   --> examples/example11-4.rs:82:5
[INFO] [stdout]    |
[INFO] [stdout] 80 | struct PokerHand {
[INFO] [stdout]    |        --------- field in this struct
[INFO] [stdout] 81 |     cards: Vec<Card>,
[INFO] [stdout] 82 |     poker_hand_type: Option<PokerHandType>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `PokerHand` 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 `card_rank_histogram` is never used
[INFO] [stdout]    --> examples/example11-4.rs:103:8
[INFO] [stdout]     |
[INFO] [stdout] 85  | impl PokerHand {
[INFO] [stdout]     | -------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 103 |     fn card_rank_histogram(&self) -> Vec<(u8, usize)> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Employee` is never constructed
[INFO] [stdout]  --> examples/example9-4.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct Employee {
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Club`, `Spade`, and `Diamond` are never constructed
[INFO] [stdout]   --> examples/example11-5.rs:8:5
[INFO] [stdout]    |
[INFO] [stdout] 6  | enum Suit {
[INFO] [stdout]    |      ---- variants in this enum
[INFO] [stdout] 7  |     Heart,
[INFO] [stdout] 8  |     Club,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 9  |     Spade,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 10 |     Diamond,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Suit` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple variants are never constructed
[INFO] [stdout]   --> examples/example11-5.rs:67:5
[INFO] [stdout]    |
[INFO] [stdout] 66 | enum PokerHandType {
[INFO] [stdout]    |      ------------- variants in this enum
[INFO] [stdout] 67 |     HighCard,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 68 |     OnePair,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 69 |     TwoPair,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 70 |     ThreeOfAKind,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 71 |     Straight,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 72 |     Flush,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 73 |     FullHouse,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 74 |     FourOfAKind,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 75 |     StraightFlush,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 76 |     RoyalFlush,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `PokerHandType` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `poker_hand_type` is never read
[INFO] [stdout]   --> examples/example11-5.rs:82:5
[INFO] [stdout]    |
[INFO] [stdout] 80 | struct PokerHand {
[INFO] [stdout]    |        --------- field in this struct
[INFO] [stdout] 81 |     cards: Vec<Card>,
[INFO] [stdout] 82 |     poker_hand_type: Option<PokerHandType>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `PokerHand` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `card_rank_histogram` and `have_flush` are never used
[INFO] [stdout]    --> examples/example11-5.rs:103:8
[INFO] [stdout]     |
[INFO] [stdout] 85  | impl PokerHand {
[INFO] [stdout]     | -------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 103 |     fn card_rank_histogram(&self) -> Vec<(u8, usize)> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 121 |     fn have_flush(&self) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Club`, `Spade`, and `Diamond` are never constructed
[INFO] [stdout]   --> examples/example12-3.rs:8:5
[INFO] [stdout]    |
[INFO] [stdout] 6  | enum Suit {
[INFO] [stdout]    |      ---- variants in this enum
[INFO] [stdout] 7  |     Heart,
[INFO] [stdout] 8  |     Club,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 9  |     Spade,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 10 |     Diamond,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Suit` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Club`, `Spade`, and `Diamond` are never constructed
[INFO] [stdout]  --> examples/example10-4.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | enum Suit {
[INFO] [stdout]   |      ---- variants in this enum
[INFO] [stdout] 6 |     Heart,
[INFO] [stdout] 7 |     Club,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 8 |     Spade,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 9 |     Diamond,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Suit` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Employee` is never constructed
[INFO] [stdout]  --> examples/example9-6.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct Employee {
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Spade` is never constructed
[INFO] [stdout]  --> examples/example13-1.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | enum Suit {
[INFO] [stdout]   |      ---- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 9 |     Spade,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Suit` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple variants are never constructed
[INFO] [stdout]   --> examples/example11-3.rs:67:5
[INFO] [stdout]    |
[INFO] [stdout] 66 | enum PokerHandType {
[INFO] [stdout]    |      ------------- variants in this enum
[INFO] [stdout] 67 |     HighCard,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 68 |     OnePair,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 69 |     TwoPair,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 70 |     ThreeOfAKind,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 71 |     Straight,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 72 |     Flush,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 73 |     FullHouse,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 74 |     FourOfAKind,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 75 |     StraightFlush,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 76 |     RoyalFlush,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `PokerHandType` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `poker_hand_type` is never read
[INFO] [stdout]   --> examples/example11-3.rs:82:5
[INFO] [stdout]    |
[INFO] [stdout] 80 | struct PokerHand {
[INFO] [stdout]    |        --------- field in this struct
[INFO] [stdout] 81 |     cards: Vec<Card>,
[INFO] [stdout] 82 |     poker_hand_type: Option<PokerHandType>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `PokerHand` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Suit` is never used
[INFO] [stdout]  --> examples/example10-1.rs:2:6
[INFO] [stdout]   |
[INFO] [stdout] 2 | enum Suit {
[INFO] [stdout]   |      ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Card` is never constructed
[INFO] [stdout]  --> examples/example10-1.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | struct Card {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Club`, `Spade`, and `Diamond` are never constructed
[INFO] [stdout]  --> examples/example10-3.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | enum Suit {
[INFO] [stdout]   |      ---- variants in this enum
[INFO] [stdout] 5 |     Heart,
[INFO] [stdout] 6 |     Club,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 7 |     Spade,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 8 |     Diamond,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Suit` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/example11-1.rs:94:9
[INFO] [stdout]    |
[INFO] [stdout] 94 |     let mut hand = PokerHand::new();
[INFO] [stdout]    |         ----^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Heart`, `Club`, `Spade`, and `Diamond` are never constructed
[INFO] [stdout]  --> examples/example11-1.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | enum Suit {
[INFO] [stdout]   |      ---- variants in this enum
[INFO] [stdout] 6 |     Heart,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 7 |     Club,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 8 |     Spade,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 9 |     Diamond,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Suit` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> examples/example11-1.rs:36:8
[INFO] [stdout]    |
[INFO] [stdout] 35 | impl Card {
[INFO] [stdout]    | --------- associated function in this implementation
[INFO] [stdout] 36 |     fn new(rank: u8, suit: Suit) -> Result<Self, &'static str> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple variants are never constructed
[INFO] [stdout]   --> examples/example11-1.rs:66:5
[INFO] [stdout]    |
[INFO] [stdout] 65 | enum PokerHandType {
[INFO] [stdout]    |      ------------- variants in this enum
[INFO] [stdout] 66 |     HighCard,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 67 |     OnePair,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 68 |     TwoPair,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 69 |     ThreeOfAKind,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 70 |     Straight,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 71 |     Flush,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 72 |     FullHouse,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 73 |     FourOfAKind,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 74 |     StraightFlush,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 75 |     RoyalFlush,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `PokerHandType` 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 `cards` and `poker_hand_type` are never read
[INFO] [stdout]   --> examples/example11-1.rs:80:5
[INFO] [stdout]    |
[INFO] [stdout] 79 | struct PokerHand {
[INFO] [stdout]    |        --------- fields in this struct
[INFO] [stdout] 80 |     cards: Vec<Card>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 81 |     poker_hand_type: Option<PokerHandType>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `PokerHand` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Employee` is never constructed
[INFO] [stdout]  --> examples/example9-7.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct Employee {
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Employee` is never constructed
[INFO] [stdout]  --> examples/example9-5.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct Employee {
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Employee` is never constructed
[INFO] [stdout]  --> examples/example9-2.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | struct Employee {
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `card_rank_histogram`
[INFO] [stdout]    --> examples/example12-1.rs:210:13
[INFO] [stdout]     |
[INFO] [stdout] 210 |         let card_rank_histogram = self.card_rank_histogram();
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_card_rank_histogram`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Club`, `Spade`, and `Diamond` are never constructed
[INFO] [stdout]   --> examples/example12-1.rs:8:5
[INFO] [stdout]    |
[INFO] [stdout] 6  | enum Suit {
[INFO] [stdout]    |      ---- variants in this enum
[INFO] [stdout] 7  |     Heart,
[INFO] [stdout] 8  |     Club,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 9  |     Spade,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 10 |     Diamond,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Suit` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `sort_hand` is never used
[INFO] [stdout]    --> examples/example12-1.rs:207:8
[INFO] [stdout]     |
[INFO] [stdout] 85  | impl PokerHand {
[INFO] [stdout]     | -------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 207 |     fn sort_hand(&mut self) -> Result<(), String> {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Suit` is never used
[INFO] [stdout]  --> examples/example10-2.rs:4:6
[INFO] [stdout]   |
[INFO] [stdout] 4 | enum Suit {
[INFO] [stdout]   |      ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Card` is never constructed
[INFO] [stdout]   --> examples/example10-2.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | struct Card {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Club`, `Spade`, and `Diamond` are never constructed
[INFO] [stdout]   --> examples/example11-6.rs:8:5
[INFO] [stdout]    |
[INFO] [stdout] 6  | enum Suit {
[INFO] [stdout]    |      ---- variants in this enum
[INFO] [stdout] 7  |     Heart,
[INFO] [stdout] 8  |     Club,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 9  |     Spade,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 10 |     Diamond,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Suit` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Spade` and `Diamond` are never constructed
[INFO] [stdout]   --> examples/example12-2.rs:9:5
[INFO] [stdout]    |
[INFO] [stdout] 6  | enum Suit {
[INFO] [stdout]    |      ---- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 9  |     Spade,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 10 |     Diamond,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Suit` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.55s
[INFO] running `Command { std: "docker" "inspect" "41d5150f9ea54cb7b91a436a84f497e4f5798b586a1b3cc861618c346899c71a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "41d5150f9ea54cb7b91a436a84f497e4f5798b586a1b3cc861618c346899c71a", kill_on_drop: false }`
[INFO] [stdout] 41d5150f9ea54cb7b91a436a84f497e4f5798b586a1b3cc861618c346899c71a