[INFO] cloning repository dezgeg/shenzen-solitaire
[INFO] running `"git" "clone" "--bare" "git://github.com/dezgeg/shenzen-solitaire.git" "work/cache/sources/gh/dezgeg/shenzen-solitaire"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/dezgeg/shenzen-solitaire'...
[INFO] running `"git" "clone" "work/cache/sources/gh/dezgeg/shenzen-solitaire" "work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/dezgeg/shenzen-solitaire"`
[INFO] [stderr] Cloning into 'work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/dezgeg/shenzen-solitaire'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/dezgeg/shenzen-solitaire" "work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/dezgeg/shenzen-solitaire"`
[INFO] [stderr] Cloning into 'work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/dezgeg/shenzen-solitaire'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c486dece6b285a6b0e0e1af56ddd9b8570a64f6a
[INFO] sha for GitHub repo dezgeg/shenzen-solitaire: c486dece6b285a6b0e0e1af56ddd9b8570a64f6a
[INFO] validating manifest of dezgeg/shenzen-solitaire on toolchain master#c8865d8e195813ade6b84434ac9f8850e7112d1a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of dezgeg/shenzen-solitaire on toolchain try#e212b7d492c96d3837691ba29d32d5f468933fb8
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing dezgeg/shenzen-solitaire
[INFO] finished frobbing dezgeg/shenzen-solitaire
[INFO] frobbed toml for dezgeg/shenzen-solitaire written to work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/dezgeg/shenzen-solitaire/Cargo.toml
[INFO] started frobbing dezgeg/shenzen-solitaire
[INFO] finished frobbing dezgeg/shenzen-solitaire
[INFO] frobbed toml for dezgeg/shenzen-solitaire written to work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/dezgeg/shenzen-solitaire/Cargo.toml
[INFO] crate dezgeg/shenzen-solitaire already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] testing dezgeg/shenzen-solitaire against try#e212b7d492c96d3837691ba29d32d5f468933fb8 for pr-61629
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-7/try#e212b7d492c96d3837691ba29d32d5f468933fb8:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/dezgeg/shenzen-solitaire:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "build" "--frozen"`
[INFO] [stdout] b38f2df5905e1d662bbbd67c2f8603100d26e1e5eac5e55fc0b3b202b14e5d5c
[INFO] running `"docker" "start" "-a" "b38f2df5905e1d662bbbd67c2f8603100d26e1e5eac5e55fc0b3b202b14e5d5c"`
[INFO] [stderr]    Compiling shenzen-solitaire v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `ANSIString`
[INFO] [stderr]  --> src/main.rs:5:17
[INFO] [stderr]   |
[INFO] [stderr] 5 | use ansi_term::{ANSIString, Colour, Style};
[INFO] [stderr]   |                 ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]   --> src/game_logic.rs:18:13
[INFO] [stderr]    |
[INFO] [stderr] 17 |             Red => 0,
[INFO] [stderr]    |             --- matches any value
[INFO] [stderr] 18 |             Green => 1,
[INFO] [stderr]    |             ^^^^^ unreachable pattern
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unreachable_patterns)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]   --> src/game_logic.rs:19:13
[INFO] [stderr]    |
[INFO] [stderr] 17 |             Red => 0,
[INFO] [stderr]    |             --- matches any value
[INFO] [stderr] 18 |             Green => 1,
[INFO] [stderr] 19 |             Black => 2,
[INFO] [stderr]    |             ^^^^^ unreachable pattern
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/main.rs:77:9
[INFO] [stderr]    |
[INFO] [stderr] 77 |     for i in 0..6 {
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/main.rs:87:9
[INFO] [stderr]    |
[INFO] [stderr] 87 |     for i in 0..6 {
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/game_logic.rs:47:13
[INFO] [stderr]    |
[INFO] [stderr] 47 |         for i in 0..4 {
[INFO] [stderr]    |             ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `Red`
[INFO] [stderr]   --> src/game_logic.rs:17:13
[INFO] [stderr]    |
[INFO] [stderr] 17 |             Red => 0,
[INFO] [stderr]    |             ^^^ help: consider prefixing with an underscore: `_Red`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `Green`
[INFO] [stderr]   --> src/game_logic.rs:18:13
[INFO] [stderr]    |
[INFO] [stderr] 18 |             Green => 1,
[INFO] [stderr]    |             ^^^^^ help: consider prefixing with an underscore: `_Green`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `Black`
[INFO] [stderr]   --> src/game_logic.rs:19:13
[INFO] [stderr]    |
[INFO] [stderr] 19 |             Black => 2,
[INFO] [stderr]    |             ^^^^^ help: consider prefixing with an underscore: `_Black`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/game_logic.rs:139:9
[INFO] [stderr]     |
[INFO] [stderr] 139 |     let mut deck = make_shuffled_deck();
[INFO] [stderr]     |         ----^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `to_index`
[INFO] [stderr]   --> src/game_logic.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     pub fn to_index(&self) -> usize {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `InUse`
[INFO] [stderr]   --> src/game_logic.rs:71:5
[INFO] [stderr]    |
[INFO] [stderr] 71 |     InUse(Card),
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Flipped`
[INFO] [stderr]   --> src/game_logic.rs:73:5
[INFO] [stderr]    |
[INFO] [stderr] 73 |     Flipped,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `with_freecell_cards`
[INFO] [stderr]    --> src/game_logic.rs:117:5
[INFO] [stderr]     |
[INFO] [stderr] 117 |     fn with_freecell_cards(&self, cards: Vec<Card>, rest: FreeCell) -> Playfield {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `with_tableau_column`
[INFO] [stderr]    --> src/game_logic.rs:129:5
[INFO] [stderr]     |
[INFO] [stderr] 129 |     fn with_tableau_column(&self, column: usize, cards: Vec<Card>) -> Playfield {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `FreeCell`
[INFO] [stderr]    --> src/game_logic.rs:157:5
[INFO] [stderr]     |
[INFO] [stderr] 157 |     FreeCell(usize),
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Flower`
[INFO] [stderr]    --> src/game_logic.rs:158:5
[INFO] [stderr]     |
[INFO] [stderr] 158 |     Flower,
[INFO] [stderr]     |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Pile`
[INFO] [stderr]    --> src/game_logic.rs:160:5
[INFO] [stderr]     |
[INFO] [stderr] 160 |     Pile(usize),
[INFO] [stderr]     |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Tableau`
[INFO] [stderr]    --> src/game_logic.rs:162:5
[INFO] [stderr]     |
[INFO] [stderr] 162 |     Tableau(usize),
[INFO] [stderr]     |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `can_place_on_top`
[INFO] [stderr]    --> src/game_logic.rs:174:1
[INFO] [stderr]     |
[INFO] [stderr] 174 | pub fn can_place_on_top(card1: Card, card2: Card) -> bool {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `pick_up_cards`
[INFO] [stderr]    --> src/game_logic.rs:189:1
[INFO] [stderr]     |
[INFO] [stderr] 189 | pub fn pick_up_cards(playfield: Playfield, count: usize, from: Position) -> Option<(Playfield, Vec<Card>)> {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `place_cards`
[INFO] [stderr]    --> src/game_logic.rs:234:1
[INFO] [stderr]     |
[INFO] [stderr] 234 | pub fn place_cards(playfield: Playfield, new_cards: Vec<Card>, to: Position) -> Option<Playfield> {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `is_legal_move`
[INFO] [stderr]    --> src/game_logic.rs:296:1
[INFO] [stderr]     |
[INFO] [stderr] 296 | pub fn is_legal_move(playfield: &Playfield, m: Move) -> bool {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `flip_dragon`
[INFO] [stderr]    --> src/game_logic.rs:309:1
[INFO] [stderr]     |
[INFO] [stderr] 309 | pub fn flip_dragon(playfield: Playfield, suit: Suit) -> Option<Playfield> {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `make_test_playfield`
[INFO] [stderr]    --> src/game_logic.rs:343:1
[INFO] [stderr]     |
[INFO] [stderr] 343 | fn make_test_playfield() -> Playfield {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `test_render`
[INFO] [stderr]    --> src/main.rs:206:1
[INFO] [stderr]     |
[INFO] [stderr] 206 | fn test_render() {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/main.rs:229:5
[INFO] [stderr]     |
[INFO] [stderr] 229 |     io::stdout().flush();
[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: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/main.rs:241:9
[INFO] [stderr]     |
[INFO] [stderr] 241 |         io::stdout().flush();
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/main.rs:244:9
[INFO] [stderr]     |
[INFO] [stderr] 244 |         io::stdin().read_line(&mut buf);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: variable `Red` should have a snake case name
[INFO] [stderr]   --> src/game_logic.rs:17:13
[INFO] [stderr]    |
[INFO] [stderr] 17 |             Red => 0,
[INFO] [stderr]    |             ^^^ help: convert the identifier to snake case: `red`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(non_snake_case)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `Green` should have a snake case name
[INFO] [stderr]   --> src/game_logic.rs:18:13
[INFO] [stderr]    |
[INFO] [stderr] 18 |             Green => 1,
[INFO] [stderr]    |             ^^^^^ help: convert the identifier to snake case: `green`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `Black` should have a snake case name
[INFO] [stderr]   --> src/game_logic.rs:19:13
[INFO] [stderr]    |
[INFO] [stderr] 19 |             Black => 2,
[INFO] [stderr]    |             ^^^^^ help: convert the identifier to snake case: `black`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.72s
[INFO] running `"docker" "inspect" "b38f2df5905e1d662bbbd67c2f8603100d26e1e5eac5e55fc0b3b202b14e5d5c"`
[INFO] running `"docker" "rm" "-f" "b38f2df5905e1d662bbbd67c2f8603100d26e1e5eac5e55fc0b3b202b14e5d5c"`
[INFO] [stdout] b38f2df5905e1d662bbbd67c2f8603100d26e1e5eac5e55fc0b3b202b14e5d5c
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-7/try#e212b7d492c96d3837691ba29d32d5f468933fb8:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/dezgeg/shenzen-solitaire:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] 4213cbfd04227c4655e42b5d02341b2a7ad73e99d19206d038d91aa4b72b9478
[INFO] running `"docker" "start" "-a" "4213cbfd04227c4655e42b5d02341b2a7ad73e99d19206d038d91aa4b72b9478"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] [stderr]    Compiling shenzen-solitaire v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `ANSIString`
[INFO] [stderr]  --> src/main.rs:5:17
[INFO] [stderr]   |
[INFO] [stderr] 5 | use ansi_term::{ANSIString, Colour, Style};
[INFO] [stderr]   |                 ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]   --> src/game_logic.rs:18:13
[INFO] [stderr]    |
[INFO] [stderr] 17 |             Red => 0,
[INFO] [stderr]    |             --- matches any value
[INFO] [stderr] 18 |             Green => 1,
[INFO] [stderr]    |             ^^^^^ unreachable pattern
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unreachable_patterns)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]   --> src/game_logic.rs:19:13
[INFO] [stderr]    |
[INFO] [stderr] 17 |             Red => 0,
[INFO] [stderr]    |             --- matches any value
[INFO] [stderr] 18 |             Green => 1,
[INFO] [stderr] 19 |             Black => 2,
[INFO] [stderr]    |             ^^^^^ unreachable pattern
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/main.rs:77:9
[INFO] [stderr]    |
[INFO] [stderr] 77 |     for i in 0..6 {
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/main.rs:87:9
[INFO] [stderr]    |
[INFO] [stderr] 87 |     for i in 0..6 {
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/game_logic.rs:47:13
[INFO] [stderr]    |
[INFO] [stderr] 47 |         for i in 0..4 {
[INFO] [stderr]    |             ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `Red`
[INFO] [stderr]   --> src/game_logic.rs:17:13
[INFO] [stderr]    |
[INFO] [stderr] 17 |             Red => 0,
[INFO] [stderr]    |             ^^^ help: consider prefixing with an underscore: `_Red`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `Green`
[INFO] [stderr]   --> src/game_logic.rs:18:13
[INFO] [stderr]    |
[INFO] [stderr] 18 |             Green => 1,
[INFO] [stderr]    |             ^^^^^ help: consider prefixing with an underscore: `_Green`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `Black`
[INFO] [stderr]   --> src/game_logic.rs:19:13
[INFO] [stderr]    |
[INFO] [stderr] 19 |             Black => 2,
[INFO] [stderr]    |             ^^^^^ help: consider prefixing with an underscore: `_Black`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/game_logic.rs:139:9
[INFO] [stderr]     |
[INFO] [stderr] 139 |     let mut deck = make_shuffled_deck();
[INFO] [stderr]     |         ----^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `to_index`
[INFO] [stderr]   --> src/game_logic.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     pub fn to_index(&self) -> usize {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `test_render`
[INFO] [stderr]    --> src/main.rs:206:1
[INFO] [stderr]     |
[INFO] [stderr] 206 | fn test_render() {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/main.rs:229:5
[INFO] [stderr]     |
[INFO] [stderr] 229 |     io::stdout().flush();
[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: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/main.rs:241:9
[INFO] [stderr]     |
[INFO] [stderr] 241 |         io::stdout().flush();
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/main.rs:244:9
[INFO] [stderr]     |
[INFO] [stderr] 244 |         io::stdin().read_line(&mut buf);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: variable `Red` should have a snake case name
[INFO] [stderr]   --> src/game_logic.rs:17:13
[INFO] [stderr]    |
[INFO] [stderr] 17 |             Red => 0,
[INFO] [stderr]    |             ^^^ help: convert the identifier to snake case: `red`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(non_snake_case)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `Green` should have a snake case name
[INFO] [stderr]   --> src/game_logic.rs:18:13
[INFO] [stderr]    |
[INFO] [stderr] 18 |             Green => 1,
[INFO] [stderr]    |             ^^^^^ help: convert the identifier to snake case: `green`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `Black` should have a snake case name
[INFO] [stderr]   --> src/game_logic.rs:19:13
[INFO] [stderr]    |
[INFO] [stderr] 19 |             Black => 2,
[INFO] [stderr]    |             ^^^^^ help: convert the identifier to snake case: `black`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.29s
[INFO] running `"docker" "inspect" "4213cbfd04227c4655e42b5d02341b2a7ad73e99d19206d038d91aa4b72b9478"`
[INFO] running `"docker" "rm" "-f" "4213cbfd04227c4655e42b5d02341b2a7ad73e99d19206d038d91aa4b72b9478"`
[INFO] [stdout] 4213cbfd04227c4655e42b5d02341b2a7ad73e99d19206d038d91aa4b72b9478
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-7/try#e212b7d492c96d3837691ba29d32d5f468933fb8:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/dezgeg/shenzen-solitaire:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "test" "--frozen"`
[INFO] [stdout] 2a438dd8fc396f64c4af6880b804b1ec1588fc5601db2d2b10e85453ac60d83a
[INFO] running `"docker" "start" "-a" "2a438dd8fc396f64c4af6880b804b1ec1588fc5601db2d2b10e85453ac60d83a"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/shenzen_solitaire-ffb00165484bc248
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test game_logic::test_flip_dragons_on_top_of_each_other ... ok
[INFO] [stdout] test game_logic::test_is_legal_move ... ok
[INFO] [stdout] test game_logic::test_make_deck ... ok
[INFO] [stdout] test game_logic::test_flip_dragons_all_in_freecells ... ok
[INFO] [stdout] test game_logic::test_flip_dragons_no_space ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "2a438dd8fc396f64c4af6880b804b1ec1588fc5601db2d2b10e85453ac60d83a"`
[INFO] running `"docker" "rm" "-f" "2a438dd8fc396f64c4af6880b804b1ec1588fc5601db2d2b10e85453ac60d83a"`
[INFO] [stdout] 2a438dd8fc396f64c4af6880b804b1ec1588fc5601db2d2b10e85453ac60d83a