[INFO] updating cached repository https://github.com/dezgeg/shenzen-solitaire
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c486dece6b285a6b0e0e1af56ddd9b8570a64f6a
[INFO] testing dezgeg/shenzen-solitaire against beta-2020-06-03 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdezgeg%2Fshenzen-solitaire" "/workspace/builds/worker-11/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dezgeg/shenzen-solitaire on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/dezgeg/shenzen-solitaire
[INFO] finished tweaking git repo https://github.com/dezgeg/shenzen-solitaire
[INFO] tweaked toml for git repo https://github.com/dezgeg/shenzen-solitaire written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/dezgeg/shenzen-solitaire already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 45034eec322b1339c9973d9753b97c7dbd29ceea61b77f4e8f532953c0287dac
[INFO] running `"docker" "start" "-a" "45034eec322b1339c9973d9753b97c7dbd29ceea61b77f4e8f532953c0287dac"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling shenzen-solitaire v0.1.0 (/opt/rustwide/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[E0170]: pattern binding `Red` is named the same as one of the variants of the type `game_logic::Suit`
[INFO] [stderr]   --> src/game_logic.rs:17:13
[INFO] [stderr]    |
[INFO] [stderr] 17 |             Red => 0,
[INFO] [stderr]    |             ^^^ help: to match on the variant, qualify the path: `game_logic::Suit::Red`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bindings_with_variant_name)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning[E0170]: pattern binding `Green` is named the same as one of the variants of the type `game_logic::Suit`
[INFO] [stderr]   --> src/game_logic.rs:18:13
[INFO] [stderr]    |
[INFO] [stderr] 18 |             Green => 1,
[INFO] [stderr]    |             ^^^^^ help: to match on the variant, qualify the path: `game_logic::Suit::Green`
[INFO] [stderr] 
[INFO] [stderr] warning[E0170]: pattern binding `Black` is named the same as one of the variants of the type `game_logic::Suit`
[INFO] [stderr]   --> src/game_logic.rs:19:13
[INFO] [stderr]    |
[INFO] [stderr] 19 |             Black => 2,
[INFO] [stderr]    |             ^^^^^ help: to match on the variant, qualify the path: `game_logic::Suit::Black`
[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: if this is intentional, prefix it 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: if this is intentional, prefix it 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: if this is intentional, prefix it 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: if this is intentional, prefix it 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: if this is intentional, prefix it 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: if this is intentional, prefix it 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: associated function is never used: `to_index`
[INFO] [stderr]   --> src/game_logic.rs:15:12
[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: associated function is never used: `with_freecell_cards`
[INFO] [stderr]    --> src/game_logic.rs:117:8
[INFO] [stderr]     |
[INFO] [stderr] 117 |     fn with_freecell_cards(&self, cards: Vec<Card>, rest: FreeCell) -> Playfield {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `with_tableau_column`
[INFO] [stderr]    --> src/game_logic.rs:129:8
[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:174:8
[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:189:8
[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:234:8
[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:296:8
[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:309:8
[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:343:4
[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:206:4
[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] warning: 35 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0170`.
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.97s
[INFO] running `"docker" "inspect" "45034eec322b1339c9973d9753b97c7dbd29ceea61b77f4e8f532953c0287dac"`
[INFO] running `"docker" "rm" "-f" "45034eec322b1339c9973d9753b97c7dbd29ceea61b77f4e8f532953c0287dac"`
[INFO] [stdout] 45034eec322b1339c9973d9753b97c7dbd29ceea61b77f4e8f532953c0287dac
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "test" "--frozen" "--no-run"`
[INFO] [stdout] 5019d65b2d4e965c88d4361a33b821fb680707520bcdccb8daec3c88011ecbf9
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "5019d65b2d4e965c88d4361a33b821fb680707520bcdccb8daec3c88011ecbf9"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling shenzen-solitaire v0.1.0 (/opt/rustwide/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[E0170]: pattern binding `Red` is named the same as one of the variants of the type `game_logic::Suit`
[INFO] [stderr]   --> src/game_logic.rs:17:13
[INFO] [stderr]    |
[INFO] [stderr] 17 |             Red => 0,
[INFO] [stderr]    |             ^^^ help: to match on the variant, qualify the path: `game_logic::Suit::Red`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bindings_with_variant_name)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning[E0170]: pattern binding `Green` is named the same as one of the variants of the type `game_logic::Suit`
[INFO] [stderr]   --> src/game_logic.rs:18:13
[INFO] [stderr]    |
[INFO] [stderr] 18 |             Green => 1,
[INFO] [stderr]    |             ^^^^^ help: to match on the variant, qualify the path: `game_logic::Suit::Green`
[INFO] [stderr] 
[INFO] [stderr] warning[E0170]: pattern binding `Black` is named the same as one of the variants of the type `game_logic::Suit`
[INFO] [stderr]   --> src/game_logic.rs:19:13
[INFO] [stderr]    |
[INFO] [stderr] 19 |             Black => 2,
[INFO] [stderr]    |             ^^^^^ help: to match on the variant, qualify the path: `game_logic::Suit::Black`
[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: if this is intentional, prefix it 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: if this is intentional, prefix it 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: if this is intentional, prefix it 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: if this is intentional, prefix it 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: if this is intentional, prefix it 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: if this is intentional, prefix it 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: associated function is never used: `to_index`
[INFO] [stderr]   --> src/game_logic.rs:15:12
[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:206:4
[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] warning: 21 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0170`.
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.30s
[INFO] running `"docker" "inspect" "5019d65b2d4e965c88d4361a33b821fb680707520bcdccb8daec3c88011ecbf9"`
[INFO] running `"docker" "rm" "-f" "5019d65b2d4e965c88d4361a33b821fb680707520bcdccb8daec3c88011ecbf9"`
[INFO] [stdout] 5019d65b2d4e965c88d4361a33b821fb680707520bcdccb8daec3c88011ecbf9
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "test" "--frozen"`
[INFO] [stdout] 7f1dc2c5dc022f0e07287e3f7257947270588e2ad9e94e8d3ccf3e3ba4c006b5
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "7f1dc2c5dc022f0e07287e3f7257947270588e2ad9e94e8d3ccf3e3ba4c006b5"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[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[E0170]: pattern binding `Red` is named the same as one of the variants of the type `game_logic::Suit`
[INFO] [stderr]   --> src/game_logic.rs:17:13
[INFO] [stderr]    |
[INFO] [stderr] 17 |             Red => 0,
[INFO] [stderr]    |             ^^^ help: to match on the variant, qualify the path: `game_logic::Suit::Red`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bindings_with_variant_name)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning[E0170]: pattern binding `Green` is named the same as one of the variants of the type `game_logic::Suit`
[INFO] [stderr]   --> src/game_logic.rs:18:13
[INFO] [stderr]    |
[INFO] [stderr] 18 |             Green => 1,
[INFO] [stderr]    |             ^^^^^ help: to match on the variant, qualify the path: `game_logic::Suit::Green`
[INFO] [stderr] 
[INFO] [stderr] warning[E0170]: pattern binding `Black` is named the same as one of the variants of the type `game_logic::Suit`
[INFO] [stderr]   --> src/game_logic.rs:19:13
[INFO] [stderr]    |
[INFO] [stderr] 19 |             Black => 2,
[INFO] [stderr]    |             ^^^^^ help: to match on the variant, qualify the path: `game_logic::Suit::Black`
[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: if this is intentional, prefix it 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: if this is intentional, prefix it 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: if this is intentional, prefix it 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: if this is intentional, prefix it 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: if this is intentional, prefix it 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: if this is intentional, prefix it 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: associated function is never used: `to_index`
[INFO] [stderr]   --> src/game_logic.rs:15:12
[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:206:4
[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] warning: 21 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0170`.
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/shenzen_solitaire-ca915db24352a905
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test game_logic::test_flip_dragons_no_space ... ok
[INFO] [stdout] test game_logic::test_is_legal_move ... ok
[INFO] [stdout] test game_logic::test_flip_dragons_on_top_of_each_other ... ok
[INFO] [stdout] test game_logic::test_make_deck ... ok
[INFO] [stdout] test game_logic::test_flip_dragons_all_in_freecells ... 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" "7f1dc2c5dc022f0e07287e3f7257947270588e2ad9e94e8d3ccf3e3ba4c006b5"`
[INFO] running `"docker" "rm" "-f" "7f1dc2c5dc022f0e07287e3f7257947270588e2ad9e94e8d3ccf3e3ba4c006b5"`
[INFO] [stdout] 7f1dc2c5dc022f0e07287e3f7257947270588e2ad9e94e8d3ccf3e3ba4c006b5