[INFO] cloning repository https://github.com/ChrisHamilton91/poker
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ChrisHamilton91/poker" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FChrisHamilton91%2Fpoker", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FChrisHamilton91%2Fpoker'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 46ef231a1ceba7f684cd94047a343fa63a01808c
[INFO] building ChrisHamilton91/poker against master#ad211ced81509462cdfe4c29ed10f97279a0acae for pr-135216
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FChrisHamilton91%2Fpoker" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ChrisHamilton91/poker on toolchain ad211ced81509462cdfe4c29ed10f97279a0acae
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad211ced81509462cdfe4c29ed10f97279a0acae" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ChrisHamilton91/poker
[INFO] finished tweaking git repo https://github.com/ChrisHamilton91/poker
[INFO] tweaked toml for git repo https://github.com/ChrisHamilton91/poker written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/ChrisHamilton91/poker 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" "+ad211ced81509462cdfe4c29ed10f97279a0acae" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+ad211ced81509462cdfe4c29ed10f97279a0acae" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e7ca6e0e7a4596cb9c11a8217743fef37031e81a9210190da6de574c08b40b43
[INFO] running `Command { std: "docker" "start" "-a" "e7ca6e0e7a4596cb9c11a8217743fef37031e81a9210190da6de574c08b40b43", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e7ca6e0e7a4596cb9c11a8217743fef37031e81a9210190da6de574c08b40b43", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7ca6e0e7a4596cb9c11a8217743fef37031e81a9210190da6de574c08b40b43", kill_on_drop: false }`
[INFO] [stdout] e7ca6e0e7a4596cb9c11a8217743fef37031e81a9210190da6de574c08b40b43
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+ad211ced81509462cdfe4c29ed10f97279a0acae" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e9bcc2b7950bf10f9604e0a619c2612017570c16818bec12405bb34512a88183
[INFO] running `Command { std: "docker" "start" "-a" "e9bcc2b7950bf10f9604e0a619c2612017570c16818bec12405bb34512a88183", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling getrandom v0.2.14
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling poker v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `player`
[INFO] [stdout]   --> src/game.rs:75:13
[INFO] [stdout]    |
[INFO] [stdout] 75 |         let player = match self.seats.get(position) {
[INFO] [stdout]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_player`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple variants are never constructed
[INFO] [stdout]   --> src/card.rs:5:5
[INFO] [stdout]    |
[INFO] [stdout] 4  | pub enum Rank {
[INFO] [stdout]    |          ---- variants in this enum
[INFO] [stdout] 5  |     Two,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 6  |     Three,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 7  |     Four,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 8  |     Five,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 9  |     Six,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 10 |     Seven,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 11 |     Eight,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 12 |     Nine,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 13 |     Ten,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 14 |     Jack,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 15 |     Queen,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 16 |     King,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 17 |     Ace,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Rank` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Clubs`, `Diamonds`, `Hearts`, and `Spades` are never constructed
[INFO] [stdout]   --> src/card.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub enum Suit {
[INFO] [stdout]    |          ---- variants in this enum
[INFO] [stdout] 22 |     Clubs,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 23 |     Diamonds,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 24 |     Hearts,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 25 |     Spades,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Suit` 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 `Card` is never used
[INFO] [stdout]   --> src/card.rs:28:10
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub type Card = (Rank, Suit);
[INFO] [stdout]    |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `deck_52` is never used
[INFO] [stdout]   --> src/card.rs:30:8
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub fn deck_52() -> Vec<Card> {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Dealer` is never constructed
[INFO] [stdout]  --> src/dealer.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct Dealer {
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Dealer` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `shuffle`, and `deal` are never used
[INFO] [stdout]   --> src/dealer.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 9  | impl Dealer {
[INFO] [stdout]    | ----------- associated items in this implementation
[INFO] [stdout] 10 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 16 |     pub fn shuffle(&mut self) {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 23 |     pub fn deal(&mut self, n: usize) -> Vec<Card> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `GameOptions` is never constructed
[INFO] [stdout]  --> src/game.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct GameOptions {
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `GameOptions` 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 `Game` is never constructed
[INFO] [stdout]   --> src/game.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub struct Game {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Game` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> src/game.rs:26:12
[INFO] [stdout]     |
[INFO] [stdout] 25  | impl Game {
[INFO] [stdout]     | --------- associated items in this implementation
[INFO] [stdout] 26  |     pub fn new(options: GameOptions) -> Result<Self, String> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 42  |     pub fn seat_player(&mut self, position: usize, player: Player) -> Result<(), String> {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 74  |     pub fn remove_player(&mut self, position: usize) -> Result<(), String> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 90  |     pub fn deal_to_board(&mut self, num_cards: usize) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 94  |     pub fn deal_to_players(&mut self, num_cards: usize) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 102 |     pub fn rake_bets(&mut self) {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 113 |     fn position_at_or_next_to(&mut self, position: usize) -> usize {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 120 |     fn position_next_to(&mut self, mut position: usize) -> usize {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 133 |     fn get_mut_player(&mut self, position: usize) -> &mut Player {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 137 |     pub fn start_hand(&mut self) -> Result<&mut Player, String> {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 161 |     pub fn next_hand(&mut self) {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 168 |     pub fn advance_button(&mut self) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 173 |     pub fn next_turn(&mut self) -> &mut Player {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple variants are never constructed
[INFO] [stdout]   --> src/hand.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub enum Hand {
[INFO] [stdout]    |          ---- variants in this enum
[INFO] [stdout] 29 |     HighCard(HighCardRanks),
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 30 |     OnePair(OnePairRanks),
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 31 |     TwoPair(TwoPairRanks),
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 32 |     ThreeOfAKind(ThreeOfAKindRanks),
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 33 |     Straight(Rank),
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 34 |     Flush(FlushRanks),
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 35 |     FullHouse(FullHouseRanks),
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 36 |     FourOfAKind(FourOfAKindRanks),
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 37 |     StraightFlush(Rank),
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 38 |     RoyalFlush,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Hand` 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 `best_hand` is never used
[INFO] [stdout]   --> src/hand/five_card_hand.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub fn best_hand(cards: [Card; 5]) -> Hand {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_royal_flush` is never used
[INFO] [stdout]   --> src/hand/five_card_hand.rs:45:4
[INFO] [stdout]    |
[INFO] [stdout] 45 | fn is_royal_flush(cards: [Card; 5]) -> bool {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_royal` is never used
[INFO] [stdout]   --> src/hand/five_card_hand.rs:49:4
[INFO] [stdout]    |
[INFO] [stdout] 49 | fn is_royal(cards: [Card; 5]) -> bool {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_straight_flush` is never used
[INFO] [stdout]   --> src/hand/five_card_hand.rs:56:4
[INFO] [stdout]    |
[INFO] [stdout] 56 | fn is_straight_flush(cards: [Card; 5]) -> Option<Rank> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_full_house` is never used
[INFO] [stdout]   --> src/hand/five_card_hand.rs:64:4
[INFO] [stdout]    |
[INFO] [stdout] 64 | fn is_full_house(cards: [Card; 5]) -> Option<FullHouseRanks> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_flush` is never used
[INFO] [stdout]   --> src/hand/five_card_hand.rs:75:4
[INFO] [stdout]    |
[INFO] [stdout] 75 | fn is_flush(cards: [Card; 5]) -> Option<FlushRanks> {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_four_of_a_kind` is never used
[INFO] [stdout]   --> src/hand/five_card_hand.rs:83:4
[INFO] [stdout]    |
[INFO] [stdout] 83 | fn is_four_of_a_kind(cards: [Card; 5]) -> Option<FourOfAKindRanks> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_straight` is never used
[INFO] [stdout]   --> src/hand/five_card_hand.rs:94:4
[INFO] [stdout]    |
[INFO] [stdout] 94 | fn is_straight(cards: [Card; 5]) -> Option<Rank> {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_three_of_a_kind` is never used
[INFO] [stdout]    --> src/hand/five_card_hand.rs:108:4
[INFO] [stdout]     |
[INFO] [stdout] 108 | fn is_three_of_a_kind(cards: [Card; 5]) -> Option<ThreeOfAKindRanks> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_two_pair` is never used
[INFO] [stdout]    --> src/hand/five_card_hand.rs:119:4
[INFO] [stdout]     |
[INFO] [stdout] 119 | fn is_two_pair(cards: [Card; 5]) -> Option<TwoPairRanks> {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_one_pair` is never used
[INFO] [stdout]    --> src/hand/five_card_hand.rs:133:4
[INFO] [stdout]     |
[INFO] [stdout] 133 | fn is_one_pair(cards: [Card; 5]) -> Option<OnePairRanks> {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `best_hand` is never used
[INFO] [stdout]   --> src/hand/seven_card_hand.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub fn best_hand(cards: [Card; 7]) -> Hand {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_royal_flush` is never used
[INFO] [stdout]   --> src/hand/seven_card_hand.rs:46:4
[INFO] [stdout]    |
[INFO] [stdout] 46 | fn is_royal_flush(cards: [Card; 7]) -> bool {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_straight_flush` is never used
[INFO] [stdout]   --> src/hand/seven_card_hand.rs:69:4
[INFO] [stdout]    |
[INFO] [stdout] 69 | fn is_straight_flush(cards: [Card; 7]) -> Option<Rank> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_wheel_flush` is never used
[INFO] [stdout]   --> src/hand/seven_card_hand.rs:88:4
[INFO] [stdout]    |
[INFO] [stdout] 88 | fn is_wheel_flush(cards: [Card; 7]) -> Option<Rank> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_full_house` is never used
[INFO] [stdout]    --> src/hand/seven_card_hand.rs:111:4
[INFO] [stdout]     |
[INFO] [stdout] 111 | fn is_full_house(cards: [Card; 7]) -> Option<FullHouseRanks> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_flush` is never used
[INFO] [stdout]    --> src/hand/seven_card_hand.rs:131:4
[INFO] [stdout]     |
[INFO] [stdout] 131 | fn is_flush(cards: [Card; 7]) -> Option<FlushRanks> {
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_four_of_a_kind` is never used
[INFO] [stdout]    --> src/hand/seven_card_hand.rs:148:4
[INFO] [stdout]     |
[INFO] [stdout] 148 | fn is_four_of_a_kind(cards: [Card; 7]) -> Option<FourOfAKindRanks> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_straight` is never used
[INFO] [stdout]    --> src/hand/seven_card_hand.rs:163:4
[INFO] [stdout]     |
[INFO] [stdout] 163 | fn is_straight(cards: [Card; 7]) -> Option<Rank> {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_wheel` is never used
[INFO] [stdout]    --> src/hand/seven_card_hand.rs:182:4
[INFO] [stdout]     |
[INFO] [stdout] 182 | fn is_wheel(cards: [Card; 7]) -> Option<Rank> {
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_three_of_a_kind` is never used
[INFO] [stdout]    --> src/hand/seven_card_hand.rs:200:4
[INFO] [stdout]     |
[INFO] [stdout] 200 | fn is_three_of_a_kind(cards: [Card; 7]) -> Option<ThreeOfAKindRanks> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_two_pair` is never used
[INFO] [stdout]    --> src/hand/seven_card_hand.rs:216:4
[INFO] [stdout]     |
[INFO] [stdout] 216 | fn is_two_pair(cards: [Card; 7]) -> Option<TwoPairRanks> {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_one_pair` is never used
[INFO] [stdout]    --> src/hand/seven_card_hand.rs:238:4
[INFO] [stdout]     |
[INFO] [stdout] 238 | fn is_one_pair(cards: [Card; 7]) -> Option<OnePairRanks> {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Player` is never constructed
[INFO] [stdout]  --> src/player.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct Player {
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Player` 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: associated items `new`, `bet`, `take_cards`, and `muck` are never used
[INFO] [stdout]   --> src/player.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl Player {
[INFO] [stdout]    | ----------- associated items in this implementation
[INFO] [stdout] 13 |     pub fn new(chips: u64) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 21 |     pub fn bet(&mut self, mut bet: u64) {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 27 |     pub fn take_cards(&mut self, cards: Vec<Card>) {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 31 |     pub fn muck(&mut self) {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/game.rs:165:9
[INFO] [stdout]     |
[INFO] [stdout] 165 |         self.start_hand();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 165 |         let _ = self.start_hand();
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.28s
[INFO] running `Command { std: "docker" "inspect" "e9bcc2b7950bf10f9604e0a619c2612017570c16818bec12405bb34512a88183", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e9bcc2b7950bf10f9604e0a619c2612017570c16818bec12405bb34512a88183", kill_on_drop: false }`
[INFO] [stdout] e9bcc2b7950bf10f9604e0a619c2612017570c16818bec12405bb34512a88183
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+ad211ced81509462cdfe4c29ed10f97279a0acae" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 47ba0860e3b1e9596c2b7d40ea27526ec51aaf0ffd9ebb467200b9fc5d41ebd0
[INFO] running `Command { std: "docker" "start" "-a" "47ba0860e3b1e9596c2b7d40ea27526ec51aaf0ffd9ebb467200b9fc5d41ebd0", kill_on_drop: false }`
[INFO] [stderr]    Compiling poker v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `player`
[INFO] [stdout]   --> src/game.rs:75:13
[INFO] [stdout]    |
[INFO] [stdout] 75 |         let player = match self.seats.get(position) {
[INFO] [stdout]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_player`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple variants are never constructed
[INFO] [stdout]   --> src/card.rs:5:5
[INFO] [stdout]    |
[INFO] [stdout] 4  | pub enum Rank {
[INFO] [stdout]    |          ---- variants in this enum
[INFO] [stdout] 5  |     Two,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 6  |     Three,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 7  |     Four,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 8  |     Five,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 9  |     Six,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 10 |     Seven,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 16 |     King,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 17 |     Ace,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Rank` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Diamonds`, `Hearts`, and `Spades` are never constructed
[INFO] [stdout]   --> src/card.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub enum Suit {
[INFO] [stdout]    |          ---- variants in this enum
[INFO] [stdout] 22 |     Clubs,
[INFO] [stdout] 23 |     Diamonds,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 24 |     Hearts,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 25 |     Spades,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Suit` 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: function `deck_52` is never used
[INFO] [stdout]   --> src/card.rs:30:8
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub fn deck_52() -> Vec<Card> {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Dealer` is never constructed
[INFO] [stdout]  --> src/dealer.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct Dealer {
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Dealer` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `shuffle`, and `deal` are never used
[INFO] [stdout]   --> src/dealer.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 9  | impl Dealer {
[INFO] [stdout]    | ----------- associated items in this implementation
[INFO] [stdout] 10 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 16 |     pub fn shuffle(&mut self) {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 23 |     pub fn deal(&mut self, n: usize) -> Vec<Card> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `GameOptions` is never constructed
[INFO] [stdout]  --> src/game.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct GameOptions {
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `GameOptions` 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 `Game` is never constructed
[INFO] [stdout]   --> src/game.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub struct Game {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Game` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> src/game.rs:26:12
[INFO] [stdout]     |
[INFO] [stdout] 25  | impl Game {
[INFO] [stdout]     | --------- associated items in this implementation
[INFO] [stdout] 26  |     pub fn new(options: GameOptions) -> Result<Self, String> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 42  |     pub fn seat_player(&mut self, position: usize, player: Player) -> Result<(), String> {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 74  |     pub fn remove_player(&mut self, position: usize) -> Result<(), String> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 90  |     pub fn deal_to_board(&mut self, num_cards: usize) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 94  |     pub fn deal_to_players(&mut self, num_cards: usize) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 102 |     pub fn rake_bets(&mut self) {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 113 |     fn position_at_or_next_to(&mut self, position: usize) -> usize {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 120 |     fn position_next_to(&mut self, mut position: usize) -> usize {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 133 |     fn get_mut_player(&mut self, position: usize) -> &mut Player {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 137 |     pub fn start_hand(&mut self) -> Result<&mut Player, String> {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 161 |     pub fn next_hand(&mut self) {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 168 |     pub fn advance_button(&mut self) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 173 |     pub fn next_turn(&mut self) -> &mut Player {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `best_hand` is never used
[INFO] [stdout]   --> src/hand/seven_card_hand.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub fn best_hand(cards: [Card; 7]) -> Hand {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_royal_flush` is never used
[INFO] [stdout]   --> src/hand/seven_card_hand.rs:46:4
[INFO] [stdout]    |
[INFO] [stdout] 46 | fn is_royal_flush(cards: [Card; 7]) -> bool {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_straight_flush` is never used
[INFO] [stdout]   --> src/hand/seven_card_hand.rs:69:4
[INFO] [stdout]    |
[INFO] [stdout] 69 | fn is_straight_flush(cards: [Card; 7]) -> Option<Rank> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_wheel_flush` is never used
[INFO] [stdout]   --> src/hand/seven_card_hand.rs:88:4
[INFO] [stdout]    |
[INFO] [stdout] 88 | fn is_wheel_flush(cards: [Card; 7]) -> Option<Rank> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_full_house` is never used
[INFO] [stdout]    --> src/hand/seven_card_hand.rs:111:4
[INFO] [stdout]     |
[INFO] [stdout] 111 | fn is_full_house(cards: [Card; 7]) -> Option<FullHouseRanks> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_flush` is never used
[INFO] [stdout]    --> src/hand/seven_card_hand.rs:131:4
[INFO] [stdout]     |
[INFO] [stdout] 131 | fn is_flush(cards: [Card; 7]) -> Option<FlushRanks> {
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_four_of_a_kind` is never used
[INFO] [stdout]    --> src/hand/seven_card_hand.rs:148:4
[INFO] [stdout]     |
[INFO] [stdout] 148 | fn is_four_of_a_kind(cards: [Card; 7]) -> Option<FourOfAKindRanks> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_straight` is never used
[INFO] [stdout]    --> src/hand/seven_card_hand.rs:163:4
[INFO] [stdout]     |
[INFO] [stdout] 163 | fn is_straight(cards: [Card; 7]) -> Option<Rank> {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_wheel` is never used
[INFO] [stdout]    --> src/hand/seven_card_hand.rs:182:4
[INFO] [stdout]     |
[INFO] [stdout] 182 | fn is_wheel(cards: [Card; 7]) -> Option<Rank> {
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_three_of_a_kind` is never used
[INFO] [stdout]    --> src/hand/seven_card_hand.rs:200:4
[INFO] [stdout]     |
[INFO] [stdout] 200 | fn is_three_of_a_kind(cards: [Card; 7]) -> Option<ThreeOfAKindRanks> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_two_pair` is never used
[INFO] [stdout]    --> src/hand/seven_card_hand.rs:216:4
[INFO] [stdout]     |
[INFO] [stdout] 216 | fn is_two_pair(cards: [Card; 7]) -> Option<TwoPairRanks> {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_one_pair` is never used
[INFO] [stdout]    --> src/hand/seven_card_hand.rs:238:4
[INFO] [stdout]     |
[INFO] [stdout] 238 | fn is_one_pair(cards: [Card; 7]) -> Option<OnePairRanks> {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Player` is never constructed
[INFO] [stdout]  --> src/player.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct Player {
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Player` 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: associated items `new`, `bet`, `take_cards`, and `muck` are never used
[INFO] [stdout]   --> src/player.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl Player {
[INFO] [stdout]    | ----------- associated items in this implementation
[INFO] [stdout] 13 |     pub fn new(chips: u64) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 21 |     pub fn bet(&mut self, mut bet: u64) {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 27 |     pub fn take_cards(&mut self, cards: Vec<Card>) {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 31 |     pub fn muck(&mut self) {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/game.rs:165:9
[INFO] [stdout]     |
[INFO] [stdout] 165 |         self.start_hand();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 165 |         let _ = self.start_hand();
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.47s
[INFO] running `Command { std: "docker" "inspect" "47ba0860e3b1e9596c2b7d40ea27526ec51aaf0ffd9ebb467200b9fc5d41ebd0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47ba0860e3b1e9596c2b7d40ea27526ec51aaf0ffd9ebb467200b9fc5d41ebd0", kill_on_drop: false }`
[INFO] [stdout] 47ba0860e3b1e9596c2b7d40ea27526ec51aaf0ffd9ebb467200b9fc5d41ebd0
