[INFO] cloning repository https://github.com/benj2468/cards
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/benj2468/cards" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbenj2468%2Fcards", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbenj2468%2Fcards'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 46cc1eff859e6a969cad231368b2d41683c7240c
[INFO] testing benj2468/cards against 1.59.0 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbenj2468%2Fcards" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/benj2468/cards on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/benj2468/cards
[INFO] finished tweaking git repo https://github.com/benj2468/cards
[INFO] tweaked toml for git repo https://github.com/benj2468/cards written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/benj2468/cards already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded dialoguer v0.7.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b254a445c0702079f68c5578cb3ecd72c0f0ce715455b105ae7836773377e83d
[INFO] running `Command { std: "docker" "start" "-a" "b254a445c0702079f68c5578cb3ecd72c0f0ce715455b105ae7836773377e83d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b254a445c0702079f68c5578cb3ecd72c0f0ce715455b105ae7836773377e83d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b254a445c0702079f68c5578cb3ecd72c0f0ce715455b105ae7836773377e83d", kill_on_drop: false }`
[INFO] [stdout] b254a445c0702079f68c5578cb3ecd72c0f0ce715455b105ae7836773377e83d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 479b705d3415a16ac7f413aeadba7d2028ab714cdef6dfcd45dcad8abebe22a7
[INFO] running `Command { std: "docker" "start" "-a" "479b705d3415a16ac7f413aeadba7d2028ab714cdef6dfcd45dcad8abebe22a7", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling getrandom v0.2.0
[INFO] [stderr]    Compiling regex-syntax v0.6.21
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling zeroize v0.9.3
[INFO] [stderr]    Compiling text_io v0.1.8
[INFO] [stderr]    Compiling terminal_size v0.1.15
[INFO] [stderr]    Compiling rand_core v0.6.0
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling regex v1.4.2
[INFO] [stderr]    Compiling rand_chacha v0.3.0
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling rand v0.8.0
[INFO] [stderr]    Compiling console v0.13.0
[INFO] [stderr]    Compiling tempfile v3.1.0
[INFO] [stderr]    Compiling dialoguer v0.7.1
[INFO] [stderr]    Compiling cards v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]   --> src/lib.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::collections::HashMap;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `opposite_suit`
[INFO] [stdout]    --> src/games/klondike.rs:137:13
[INFO] [stdout]     |
[INFO] [stdout] 137 |         let opposite_suit = if move_card.color() { Suit::Club } else { Suit::Diamond };
[INFO] [stdout]     |             ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_opposite_suit`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/games/klondike.rs:174:17
[INFO] [stdout]     |
[INFO] [stdout] 174 |             Err(e) => return Err(String::from("Unable to make that move"))
[INFO] [stdout]     |                 ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new_visible`
[INFO] [stdout]   --> src/games/../utils/deck.rs:43:12
[INFO] [stdout]    |
[INFO] [stdout] 43 |     pub fn new_visible(suit: Suit, rank: u8) -> Result<Card, String> {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `see`
[INFO] [stdout]   --> src/games/../utils/deck.rs:61:12
[INFO] [stdout]    |
[INFO] [stdout] 61 |     pub fn see(mut self) -> Card
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `hide`
[INFO] [stdout]   --> src/games/../utils/deck.rs:68:12
[INFO] [stdout]    |
[INFO] [stdout] 68 |     pub fn hide(mut self) -> Card
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `color`
[INFO] [stdout]   --> src/games/../utils/deck.rs:74:12
[INFO] [stdout]    |
[INFO] [stdout] 74 |     pub fn color(&self) -> bool
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new_deck`
[INFO] [stdout]    --> src/games/../utils/deck.rs:114:12
[INFO] [stdout]     |
[INFO] [stdout] 114 |     pub fn new_deck(with_joker: bool) -> Stack {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `deal`
[INFO] [stdout]    --> src/games/../utils/deck.rs:168:12
[INFO] [stdout]     |
[INFO] [stdout] 168 |     pub fn deal(&mut self, count: usize) -> Vec<Card> {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `top_card`
[INFO] [stdout]    --> src/games/../utils/deck.rs:179:12
[INFO] [stdout]     |
[INFO] [stdout] 179 |     pub fn top_card(&self) -> Option<&Card> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `try_move_aces`
[INFO] [stdout]   --> src/games/aces_up.rs:97:8
[INFO] [stdout]    |
[INFO] [stdout] 97 |     fn try_move_aces(&mut self)
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_ace`
[INFO] [stdout]   --> src/games/../utils/deck.rs:51:12
[INFO] [stdout]    |
[INFO] [stdout] 51 |     pub fn is_ace(&self) -> bool
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new_deck_reverse`
[INFO] [stdout]    --> src/games/../utils/deck.rs:130:12
[INFO] [stdout]     |
[INFO] [stdout] 130 |     pub fn new_deck_reverse(with_joker: bool) -> Stack {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `MAX_CARD_RANK`
[INFO] [stdout]  --> src/utils/deck.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | const MAX_CARD_RANK: u8 = 14;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Heart`
[INFO] [stdout]  --> src/utils/deck.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     Heart,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Spade`
[INFO] [stdout]   --> src/utils/deck.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     Spade,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Club`
[INFO] [stdout]   --> src/utils/deck.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     Club,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Diamond`
[INFO] [stdout]   --> src/utils/deck.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     Diamond,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Joker`
[INFO] [stdout]   --> src/utils/deck.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     Joker
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/utils/deck.rs:37:12
[INFO] [stdout]    |
[INFO] [stdout] 37 |     pub fn new(suit: Suit, rank: u8) -> Result<Card, String> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new_visible`
[INFO] [stdout]   --> src/utils/deck.rs:43:12
[INFO] [stdout]    |
[INFO] [stdout] 43 |     pub fn new_visible(suit: Suit, rank: u8) -> Result<Card, String> {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_ace`
[INFO] [stdout]   --> src/utils/deck.rs:51:12
[INFO] [stdout]    |
[INFO] [stdout] 51 |     pub fn is_ace(&self) -> bool
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_visible`
[INFO] [stdout]   --> src/utils/deck.rs:56:12
[INFO] [stdout]    |
[INFO] [stdout] 56 |     pub fn set_visible(&mut self, new_val: bool)
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `see`
[INFO] [stdout]   --> src/utils/deck.rs:61:12
[INFO] [stdout]    |
[INFO] [stdout] 61 |     pub fn see(mut self) -> Card
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `hide`
[INFO] [stdout]   --> src/utils/deck.rs:68:12
[INFO] [stdout]    |
[INFO] [stdout] 68 |     pub fn hide(mut self) -> Card
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `color`
[INFO] [stdout]   --> src/utils/deck.rs:74:12
[INFO] [stdout]    |
[INFO] [stdout] 74 |     pub fn color(&self) -> bool
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Stack`
[INFO] [stdout]    --> src/utils/deck.rs:108:12
[INFO] [stdout]     |
[INFO] [stdout] 108 | pub struct Stack {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new_deck`
[INFO] [stdout]    --> src/utils/deck.rs:114:12
[INFO] [stdout]     |
[INFO] [stdout] 114 |     pub fn new_deck(with_joker: bool) -> Stack {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new_deck_reverse`
[INFO] [stdout]    --> src/utils/deck.rs:130:12
[INFO] [stdout]     |
[INFO] [stdout] 130 |     pub fn new_deck_reverse(with_joker: bool) -> Stack {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `shuffle`
[INFO] [stdout]    --> src/utils/deck.rs:152:12
[INFO] [stdout]     |
[INFO] [stdout] 152 |     pub fn shuffle(&mut self) {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `draw`
[INFO] [stdout]    --> src/utils/deck.rs:156:12
[INFO] [stdout]     |
[INFO] [stdout] 156 |     pub fn draw(&mut self) -> Card {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `size`
[INFO] [stdout]    --> src/utils/deck.rs:164:12
[INFO] [stdout]     |
[INFO] [stdout] 164 |     pub fn size(&self) -> usize {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `deal`
[INFO] [stdout]    --> src/utils/deck.rs:168:12
[INFO] [stdout]     |
[INFO] [stdout] 168 |     pub fn deal(&mut self, count: usize) -> Vec<Card> {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `top_card`
[INFO] [stdout]    --> src/utils/deck.rs:179:12
[INFO] [stdout]     |
[INFO] [stdout] 179 |     pub fn top_card(&self) -> Option<&Card> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/lib.rs:35:21
[INFO] [stdout]    |
[INFO] [stdout] 35 |                     select_game();
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 35 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.72s
[INFO] running `Command { std: "docker" "inspect" "479b705d3415a16ac7f413aeadba7d2028ab714cdef6dfcd45dcad8abebe22a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "479b705d3415a16ac7f413aeadba7d2028ab714cdef6dfcd45dcad8abebe22a7", kill_on_drop: false }`
[INFO] [stdout] 479b705d3415a16ac7f413aeadba7d2028ab714cdef6dfcd45dcad8abebe22a7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 88a990f1426cd62065800b13abd130d8e94a92fc932ce87d63e3a9f9ee2fee01
[INFO] running `Command { std: "docker" "start" "-a" "88a990f1426cd62065800b13abd130d8e94a92fc932ce87d63e3a9f9ee2fee01", kill_on_drop: false }`
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]   --> src/lib.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::collections::HashMap;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `opposite_suit`
[INFO] [stdout]    --> src/games/klondike.rs:137:13
[INFO] [stdout]     |
[INFO] [stdout] 137 |         let opposite_suit = if move_card.color() { Suit::Club } else { Suit::Diamond };
[INFO] [stdout]     |             ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_opposite_suit`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/games/klondike.rs:174:17
[INFO] [stdout]     |
[INFO] [stdout] 174 |             Err(e) => return Err(String::from("Unable to make that move"))
[INFO] [stdout]     |                 ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new_visible`
[INFO] [stdout]   --> src/games/../utils/deck.rs:43:12
[INFO] [stdout]    |
[INFO] [stdout] 43 |     pub fn new_visible(suit: Suit, rank: u8) -> Result<Card, String> {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `see`
[INFO] [stdout]   --> src/games/../utils/deck.rs:61:12
[INFO] [stdout]    |
[INFO] [stdout] 61 |     pub fn see(mut self) -> Card
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `hide`
[INFO] [stdout]   --> src/games/../utils/deck.rs:68:12
[INFO] [stdout]    |
[INFO] [stdout] 68 |     pub fn hide(mut self) -> Card
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `color`
[INFO] [stdout]   --> src/games/../utils/deck.rs:74:12
[INFO] [stdout]    |
[INFO] [stdout] 74 |     pub fn color(&self) -> bool
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new_deck`
[INFO] [stdout]    --> src/games/../utils/deck.rs:114:12
[INFO] [stdout]     |
[INFO] [stdout] 114 |     pub fn new_deck(with_joker: bool) -> Stack {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `deal`
[INFO] [stdout]    --> src/games/../utils/deck.rs:168:12
[INFO] [stdout]     |
[INFO] [stdout] 168 |     pub fn deal(&mut self, count: usize) -> Vec<Card> {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `top_card`
[INFO] [stdout]    --> src/games/../utils/deck.rs:179:12
[INFO] [stdout]     |
[INFO] [stdout] 179 |     pub fn top_card(&self) -> Option<&Card> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `try_move_aces`
[INFO] [stdout]   --> src/games/aces_up.rs:97:8
[INFO] [stdout]    |
[INFO] [stdout] 97 |     fn try_move_aces(&mut self)
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_ace`
[INFO] [stdout]   --> src/games/../utils/deck.rs:51:12
[INFO] [stdout]    |
[INFO] [stdout] 51 |     pub fn is_ace(&self) -> bool
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new_deck_reverse`
[INFO] [stdout]    --> src/games/../utils/deck.rs:130:12
[INFO] [stdout]     |
[INFO] [stdout] 130 |     pub fn new_deck_reverse(with_joker: bool) -> Stack {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `MAX_CARD_RANK`
[INFO] [stdout]  --> src/utils/deck.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | const MAX_CARD_RANK: u8 = 14;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Heart`
[INFO] [stdout]  --> src/utils/deck.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     Heart,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Spade`
[INFO] [stdout]   --> src/utils/deck.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     Spade,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Club`
[INFO] [stdout]   --> src/utils/deck.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     Club,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Diamond`
[INFO] [stdout]   --> src/utils/deck.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     Diamond,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Joker`
[INFO] [stdout]   --> src/utils/deck.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     Joker
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/utils/deck.rs:37:12
[INFO] [stdout]    |
[INFO] [stdout] 37 |     pub fn new(suit: Suit, rank: u8) -> Result<Card, String> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new_visible`
[INFO] [stdout]   --> src/utils/deck.rs:43:12
[INFO] [stdout]    |
[INFO] [stdout] 43 |     pub fn new_visible(suit: Suit, rank: u8) -> Result<Card, String> {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_ace`
[INFO] [stdout]   --> src/utils/deck.rs:51:12
[INFO] [stdout]    |
[INFO] [stdout] 51 |     pub fn is_ace(&self) -> bool
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_visible`
[INFO] [stdout]   --> src/utils/deck.rs:56:12
[INFO] [stdout]    |
[INFO] [stdout] 56 |     pub fn set_visible(&mut self, new_val: bool)
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `see`
[INFO] [stdout]   --> src/utils/deck.rs:61:12
[INFO] [stdout]    |
[INFO] [stdout] 61 |     pub fn see(mut self) -> Card
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `hide`
[INFO] [stdout]   --> src/utils/deck.rs:68:12
[INFO] [stdout]    |
[INFO] [stdout] 68 |     pub fn hide(mut self) -> Card
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `color`
[INFO] [stdout]   --> src/utils/deck.rs:74:12
[INFO] [stdout]    |
[INFO] [stdout] 74 |     pub fn color(&self) -> bool
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Stack`
[INFO] [stdout]    --> src/utils/deck.rs:108:12
[INFO] [stdout]     |
[INFO] [stdout] 108 | pub struct Stack {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new_deck`
[INFO] [stdout]    --> src/utils/deck.rs:114:12
[INFO] [stdout]     |
[INFO] [stdout] 114 |     pub fn new_deck(with_joker: bool) -> Stack {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new_deck_reverse`
[INFO] [stdout]    --> src/utils/deck.rs:130:12
[INFO] [stdout]     |
[INFO] [stdout] 130 |     pub fn new_deck_reverse(with_joker: bool) -> Stack {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `shuffle`
[INFO] [stdout]    --> src/utils/deck.rs:152:12
[INFO] [stdout]     |
[INFO] [stdout] 152 |     pub fn shuffle(&mut self) {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `draw`
[INFO] [stdout]    --> src/utils/deck.rs:156:12
[INFO] [stdout]     |
[INFO] [stdout] 156 |     pub fn draw(&mut self) -> Card {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `size`
[INFO] [stdout]    --> src/utils/deck.rs:164:12
[INFO] [stdout]     |
[INFO] [stdout] 164 |     pub fn size(&self) -> usize {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `deal`
[INFO] [stdout]    --> src/utils/deck.rs:168:12
[INFO] [stdout]     |
[INFO] [stdout] 168 |     pub fn deal(&mut self, count: usize) -> Vec<Card> {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `top_card`
[INFO] [stdout]    --> src/utils/deck.rs:179:12
[INFO] [stdout]     |
[INFO] [stdout] 179 |     pub fn top_card(&self) -> Option<&Card> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/lib.rs:35:21
[INFO] [stdout]    |
[INFO] [stdout] 35 |                     select_game();
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling cards v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: 35 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]   --> src/lib.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::collections::HashMap;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `opposite_suit`
[INFO] [stdout]    --> src/games/klondike.rs:137:13
[INFO] [stdout]     |
[INFO] [stdout] 137 |         let opposite_suit = if move_card.color() { Suit::Club } else { Suit::Diamond };
[INFO] [stdout]     |             ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_opposite_suit`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/games/klondike.rs:174:17
[INFO] [stdout]     |
[INFO] [stdout] 174 |             Err(e) => return Err(String::from("Unable to make that move"))
[INFO] [stdout]     |                 ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `see`
[INFO] [stdout]   --> src/games/../utils/deck.rs:61:12
[INFO] [stdout]    |
[INFO] [stdout] 61 |     pub fn see(mut self) -> Card
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `hide`
[INFO] [stdout]   --> src/games/../utils/deck.rs:68:12
[INFO] [stdout]    |
[INFO] [stdout] 68 |     pub fn hide(mut self) -> Card
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `color`
[INFO] [stdout]   --> src/games/../utils/deck.rs:74:12
[INFO] [stdout]    |
[INFO] [stdout] 74 |     pub fn color(&self) -> bool
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `top_card`
[INFO] [stdout]    --> src/games/../utils/deck.rs:179:12
[INFO] [stdout]     |
[INFO] [stdout] 179 |     pub fn top_card(&self) -> Option<&Card> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `new_hidden_card`
[INFO] [stdout]    --> src/games/../utils/deck.rs:195:8
[INFO] [stdout]     |
[INFO] [stdout] 195 |     fn new_hidden_card() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `try_move_aces`
[INFO] [stdout]   --> src/games/aces_up.rs:97:8
[INFO] [stdout]    |
[INFO] [stdout] 97 |     fn try_move_aces(&mut self)
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_ace`
[INFO] [stdout]   --> src/games/../utils/deck.rs:51:12
[INFO] [stdout]    |
[INFO] [stdout] 51 |     pub fn is_ace(&self) -> bool
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new_deck_reverse`
[INFO] [stdout]    --> src/games/../utils/deck.rs:130:12
[INFO] [stdout]     |
[INFO] [stdout] 130 |     pub fn new_deck_reverse(with_joker: bool) -> Stack {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_ace`
[INFO] [stdout]   --> src/utils/deck.rs:51:12
[INFO] [stdout]    |
[INFO] [stdout] 51 |     pub fn is_ace(&self) -> bool
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_visible`
[INFO] [stdout]   --> src/utils/deck.rs:56:12
[INFO] [stdout]    |
[INFO] [stdout] 56 |     pub fn set_visible(&mut self, new_val: bool)
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `see`
[INFO] [stdout]   --> src/utils/deck.rs:61:12
[INFO] [stdout]    |
[INFO] [stdout] 61 |     pub fn see(mut self) -> Card
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `hide`
[INFO] [stdout]   --> src/utils/deck.rs:68:12
[INFO] [stdout]    |
[INFO] [stdout] 68 |     pub fn hide(mut self) -> Card
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `color`
[INFO] [stdout]   --> src/utils/deck.rs:74:12
[INFO] [stdout]    |
[INFO] [stdout] 74 |     pub fn color(&self) -> bool
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new_deck_reverse`
[INFO] [stdout]    --> src/utils/deck.rs:130:12
[INFO] [stdout]     |
[INFO] [stdout] 130 |     pub fn new_deck_reverse(with_joker: bool) -> Stack {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `top_card`
[INFO] [stdout]    --> src/utils/deck.rs:179:12
[INFO] [stdout]     |
[INFO] [stdout] 179 |     pub fn top_card(&self) -> Option<&Card> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `new_hidden_card`
[INFO] [stdout]    --> src/utils/deck.rs:195:8
[INFO] [stdout]     |
[INFO] [stdout] 195 |     fn new_hidden_card() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/lib.rs:35:21
[INFO] [stdout]    |
[INFO] [stdout] 35 |                     select_game();
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 20 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.13s
[INFO] running `Command { std: "docker" "inspect" "88a990f1426cd62065800b13abd130d8e94a92fc932ce87d63e3a9f9ee2fee01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88a990f1426cd62065800b13abd130d8e94a92fc932ce87d63e3a9f9ee2fee01", kill_on_drop: false }`
[INFO] [stdout] 88a990f1426cd62065800b13abd130d8e94a92fc932ce87d63e3a9f9ee2fee01
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 03fa2c9d2adc79822f5a70811ca7ba9ee4f9fea686e31f940b81fb9c98fe0c5a
[INFO] running `Command { std: "docker" "start" "-a" "03fa2c9d2adc79822f5a70811ca7ba9ee4f9fea686e31f940b81fb9c98fe0c5a", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]   --> src/lib.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use std::collections::HashMap;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `opposite_suit`
[INFO] [stderr]    --> src/games/klondike.rs:137:13
[INFO] [stderr]     |
[INFO] [stderr] 137 |         let opposite_suit = if move_card.color() { Suit::Club } else { Suit::Diamond };
[INFO] [stderr]     |             ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_opposite_suit`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]    --> src/games/klondike.rs:174:17
[INFO] [stderr]     |
[INFO] [stderr] 174 |             Err(e) => return Err(String::from("Unable to make that move"))
[INFO] [stderr]     |                 ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new_visible`
[INFO] [stderr]   --> src/games/../utils/deck.rs:43:12
[INFO] [stderr]    |
[INFO] [stderr] 43 |     pub fn new_visible(suit: Suit, rank: u8) -> Result<Card, String> {
[INFO] [stderr]    |            ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `see`
[INFO] [stderr]   --> src/games/../utils/deck.rs:61:12
[INFO] [stderr]    |
[INFO] [stderr] 61 |     pub fn see(mut self) -> Card
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `hide`
[INFO] [stderr]   --> src/games/../utils/deck.rs:68:12
[INFO] [stderr]    |
[INFO] [stderr] 68 |     pub fn hide(mut self) -> Card
[INFO] [stderr]    |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `color`
[INFO] [stderr]   --> src/games/../utils/deck.rs:74:12
[INFO] [stderr]    |
[INFO] [stderr] 74 |     pub fn color(&self) -> bool
[INFO] [stderr]    |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new_deck`
[INFO] [stderr]    --> src/games/../utils/deck.rs:114:12
[INFO] [stderr]     |
[INFO] [stderr] 114 |     pub fn new_deck(with_joker: bool) -> Stack {
[INFO] [stderr]     |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `deal`
[INFO] [stderr]    --> src/games/../utils/deck.rs:168:12
[INFO] [stderr]     |
[INFO] [stderr] 168 |     pub fn deal(&mut self, count: usize) -> Vec<Card> {
[INFO] [stderr]     |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `top_card`
[INFO] [stderr]    --> src/games/../utils/deck.rs:179:12
[INFO] [stderr]     |
[INFO] [stderr] 179 |     pub fn top_card(&self) -> Option<&Card> {
[INFO] [stderr]     |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `try_move_aces`
[INFO] [stderr]   --> src/games/aces_up.rs:97:8
[INFO] [stderr]    |
[INFO] [stderr] 97 |     fn try_move_aces(&mut self)
[INFO] [stderr]    |        ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `is_ace`
[INFO] [stderr]   --> src/games/../utils/deck.rs:51:12
[INFO] [stderr]    |
[INFO] [stderr] 51 |     pub fn is_ace(&self) -> bool
[INFO] [stderr]    |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new_deck_reverse`
[INFO] [stderr]    --> src/games/../utils/deck.rs:130:12
[INFO] [stderr]     |
[INFO] [stderr] 130 |     pub fn new_deck_reverse(with_joker: bool) -> Stack {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `MAX_CARD_RANK`
[INFO] [stderr]  --> src/utils/deck.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | const MAX_CARD_RANK: u8 = 14;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Heart`
[INFO] [stderr]  --> src/utils/deck.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     Heart,
[INFO] [stderr]   |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Spade`
[INFO] [stderr]   --> src/utils/deck.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     Spade,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Club`
[INFO] [stderr]   --> src/utils/deck.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     Club,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Diamond`
[INFO] [stderr]   --> src/utils/deck.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     Diamond,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Joker`
[INFO] [stderr]   --> src/utils/deck.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     Joker
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/utils/deck.rs:37:12
[INFO] [stderr]    |
[INFO] [stderr] 37 |     pub fn new(suit: Suit, rank: u8) -> Result<Card, String> {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new_visible`
[INFO] [stderr]   --> src/utils/deck.rs:43:12
[INFO] [stderr]    |
[INFO] [stderr] 43 |     pub fn new_visible(suit: Suit, rank: u8) -> Result<Card, String> {
[INFO] [stderr]    |            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `is_ace`
[INFO] [stderr]   --> src/utils/deck.rs:51:12
[INFO] [stderr]    |
[INFO] [stderr] 51 |     pub fn is_ace(&self) -> bool
[INFO] [stderr]    |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `set_visible`
[INFO] [stderr]   --> src/utils/deck.rs:56:12
[INFO] [stderr]    |
[INFO] [stderr] 56 |     pub fn set_visible(&mut self, new_val: bool)
[INFO] [stderr]    |            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `see`
[INFO] [stderr]   --> src/utils/deck.rs:61:12
[INFO] [stderr]    |
[INFO] [stderr] 61 |     pub fn see(mut self) -> Card
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `hide`
[INFO] [stderr]   --> src/utils/deck.rs:68:12
[INFO] [stderr]    |
[INFO] [stderr] 68 |     pub fn hide(mut self) -> Card
[INFO] [stderr]    |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `color`
[INFO] [stderr]   --> src/utils/deck.rs:74:12
[INFO] [stderr]    |
[INFO] [stderr] 74 |     pub fn color(&self) -> bool
[INFO] [stderr]    |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Stack`
[INFO] [stderr]    --> src/utils/deck.rs:108:12
[INFO] [stderr]     |
[INFO] [stderr] 108 | pub struct Stack {
[INFO] [stderr]     |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new_deck`
[INFO] [stderr]    --> src/utils/deck.rs:114:12
[INFO] [stderr]     |
[INFO] [stderr] 114 |     pub fn new_deck(with_joker: bool) -> Stack {
[INFO] [stderr]     |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new_deck_reverse`
[INFO] [stderr]    --> src/utils/deck.rs:130:12
[INFO] [stderr]     |
[INFO] [stderr] 130 |     pub fn new_deck_reverse(with_joker: bool) -> Stack {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `shuffle`
[INFO] [stderr]    --> src/utils/deck.rs:152:12
[INFO] [stderr]     |
[INFO] [stderr] 152 |     pub fn shuffle(&mut self) {
[INFO] [stderr]     |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `draw`
[INFO] [stderr]    --> src/utils/deck.rs:156:12
[INFO] [stderr]     |
[INFO] [stderr] 156 |     pub fn draw(&mut self) -> Card {
[INFO] [stderr]     |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `size`
[INFO] [stderr]    --> src/utils/deck.rs:164:12
[INFO] [stderr]     |
[INFO] [stderr] 164 |     pub fn size(&self) -> usize {
[INFO] [stderr]     |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `deal`
[INFO] [stderr]    --> src/utils/deck.rs:168:12
[INFO] [stderr]     |
[INFO] [stderr] 168 |     pub fn deal(&mut self, count: usize) -> Vec<Card> {
[INFO] [stderr]     |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `top_card`
[INFO] [stderr]    --> src/utils/deck.rs:179:12
[INFO] [stderr]     |
[INFO] [stderr] 179 |     pub fn top_card(&self) -> Option<&Card> {
[INFO] [stderr]     |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/lib.rs:35:21
[INFO] [stderr]    |
[INFO] [stderr] 35 |                     select_game();
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `see`
[INFO] [stderr]   --> src/games/../utils/deck.rs:61:12
[INFO] [stderr]    |
[INFO] [stderr] 61 |     pub fn see(mut self) -> Card
[INFO] [stderr]    |            ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `new_hidden_card`
[INFO] [stderr]    --> src/games/../utils/deck.rs:195:8
[INFO] [stderr]     |
[INFO] [stderr] 195 |     fn new_hidden_card() {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `new_hidden_card`
[INFO] [stderr]    --> src/utils/deck.rs:195:8
[INFO] [stderr]     |
[INFO] [stderr] 195 |     fn new_hidden_card() {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `cards` (lib) generated 35 warnings
[INFO] [stderr] warning: `cards` (lib test) generated 20 warnings (17 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/cards-f086bd4d1bfc8e1c)
[INFO] [stdout] 
[INFO] [stdout] running 23 tests
[INFO] [stdout] test aces_up::deck::test::draw ... ok
[INFO] [stdout] test aces_up::deck::test::deck ... ok
[INFO] [stdout] test aces_up::deck::test::invalid_card ... ok
[INFO] [stdout] test aces_up::deck::test::new_card ... ok
[INFO] [stdout] test aces_up::deck::test::deck_with_joker ... ok
[INFO] [stdout] test aces_up::deck::test::shuffle ... ok
[INFO] [stdout] test aces_up::deck::test::deal ... ok
[INFO] [stdout] test aces_up::test::clean ... ok
[INFO] [stdout] test deck::test::deck ... ok
[INFO] [stdout] test deck::test::deal ... ok
[INFO] [stdout] test deck::test::draw ... ok
[INFO] [stdout] test aces_up::test::win_false ... ok
[INFO] [stdout] test deck::test::deck_with_joker ... ok
[INFO] [stdout] test deck::test::invalid_card ... ok
[INFO] [stdout] test deck::test::new_card ... ok
[INFO] [stdout] test klondike::deck::test::deck ... ok
[INFO] [stdout] test deck::test::shuffle ... ok
[INFO] [stdout] test klondike::deck::test::deal ... ok
[INFO] [stdout] test klondike::deck::test::deck_with_joker ... ok
[INFO] [stdout] test klondike::deck::test::draw ... ok
[INFO] [stdout] test klondike::deck::test::invalid_card ... ok
[INFO] [stdout] test klondike::deck::test::new_card ... ok
[INFO] [stdout] test klondike::deck::test::shuffle ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 23 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/cards-44ffaffd40541511)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/deck.rs (/opt/rustwide/target/debug/deps/deck-3b5193ef3ade8e71)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests cards
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "03fa2c9d2adc79822f5a70811ca7ba9ee4f9fea686e31f940b81fb9c98fe0c5a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "03fa2c9d2adc79822f5a70811ca7ba9ee4f9fea686e31f940b81fb9c98fe0c5a", kill_on_drop: false }`
[INFO] [stdout] 03fa2c9d2adc79822f5a70811ca7ba9ee4f9fea686e31f940b81fb9c98fe0c5a