[INFO] cloning repository https://github.com/4t145/rahjong
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/4t145/rahjong" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F4t145%2Frahjong", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F4t145%2Frahjong'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 857fabbe4272337f16c9b0b2c11e17d8cb3926c5
[INFO] testing 4t145/rahjong against nightly-2025-01-18+rustflags=-Zrandomize-layout for randomize-layout-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F4t145%2Frahjong" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/4t145/rahjong on toolchain nightly-2025-01-18
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2025-01-18" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/4t145/rahjong
[INFO] finished tweaking git repo https://github.com/4t145/rahjong
[INFO] tweaked toml for git repo https://github.com/4t145/rahjong written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/4t145/rahjong already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2025-01-18" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:819108c5571ea2e421544af4d832f968d213c87fbe3707a016657f43d2f853bc" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2025-01-18" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 813b0931618ac67f456e265f79a203a36a966b28ba2b11a6271d44a11af58879
[INFO] running `Command { std: "docker" "start" "-a" "813b0931618ac67f456e265f79a203a36a966b28ba2b11a6271d44a11af58879", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "813b0931618ac67f456e265f79a203a36a966b28ba2b11a6271d44a11af58879", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "813b0931618ac67f456e265f79a203a36a966b28ba2b11a6271d44a11af58879", kill_on_drop: false }`
[INFO] [stdout] 813b0931618ac67f456e265f79a203a36a966b28ba2b11a6271d44a11af58879
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Zrandomize-layout" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:819108c5571ea2e421544af4d832f968d213c87fbe3707a016657f43d2f853bc" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2025-01-18" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c629209c5cb5fad3b6b0c5fac3ea8531399618c24a05947a55563b88daef2054
[INFO] running `Command { std: "docker" "start" "-a" "c629209c5cb5fad3b6b0c5fac3ea8531399618c24a05947a55563b88daef2054", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling proc-macro2 v1.0.81
[INFO] [stderr]    Compiling autocfg v1.2.0
[INFO] [stderr]    Compiling parking_lot_core v0.9.10
[INFO] [stderr]    Compiling rustversion v1.0.15
[INFO] [stderr]    Compiling smallvec v1.13.2
[INFO] [stderr]    Compiling log v0.4.21
[INFO] [stderr]    Compiling signal-hook v0.3.17
[INFO] [stderr]    Compiling pin-project-lite v0.2.14
[INFO] [stderr]    Compiling zerocopy v0.7.32
[INFO] [stderr]    Compiling serde v1.0.199
[INFO] [stderr]    Compiling once_cell v1.19.0
[INFO] [stderr]    Compiling ahash v0.8.11
[INFO] [stderr]    Compiling futures-core v0.3.30
[INFO] [stderr]    Compiling allocator-api2 v0.2.18
[INFO] [stderr]    Compiling futures-sink v0.3.30
[INFO] [stderr]    Compiling futures-task v0.3.30
[INFO] [stderr]    Compiling paste v1.0.14
[INFO] [stderr]    Compiling bitflags v2.5.0
[INFO] [stderr]    Compiling ryu v1.0.17
[INFO] [stderr]    Compiling either v1.11.0
[INFO] [stderr]    Compiling itoa v1.0.11
[INFO] [stderr]    Compiling indoc v2.0.5
[INFO] [stderr]    Compiling cassowary v0.3.0
[INFO] [stderr]    Compiling unicode-segmentation v1.11.0
[INFO] [stderr]    Compiling unicode-width v0.1.12
[INFO] [stderr]    Compiling itertools v0.12.1
[INFO] [stderr]    Compiling lock_api v0.4.12
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]    Compiling castaway v0.2.2
[INFO] [stderr]    Compiling compact_str v0.7.1
[INFO] [stderr]    Compiling hashbrown v0.14.5
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling syn v2.0.60
[INFO] [stderr]    Compiling signal-hook-registry v1.4.2
[INFO] [stderr]    Compiling mio v0.8.11
[INFO] [stderr]    Compiling getrandom v0.2.14
[INFO] [stderr]    Compiling socket2 v0.5.6
[INFO] [stderr]    Compiling num_cpus v1.16.0
[INFO] [stderr]    Compiling lru v0.12.3
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling parking_lot v0.12.2
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling signal-hook-mio v0.2.3
[INFO] [stderr]    Compiling crossterm v0.27.0
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling serde_derive v1.0.199
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]    Compiling strum_macros v0.26.2
[INFO] [stderr]    Compiling stability v0.2.0
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]    Compiling futures-util v0.3.30
[INFO] [stderr]    Compiling strum v0.26.2
[INFO] [stderr]    Compiling ratatui v0.26.2
[INFO] [stderr]    Compiling rahjong v0.1.0 (/opt/rustwide/workdir/lib/rahjong)
[INFO] [stdout] warning: unused import: `SeedableRng`
[INFO] [stdout]  --> lib/rahjong/src/rules/jp.rs:1:35
[INFO] [stdout]   |
[INFO] [stdout] 1 | use rand::{seq::SliceRandom, Rng, SeedableRng};
[INFO] [stdout]   |                                   ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Win`
[INFO] [stdout]   --> lib/rahjong/src/rules/jp/round.rs:16:32
[INFO] [stdout]    |
[INFO] [stdout] 16 |     win::{Chankan, Ron, Tsumo, Win},
[INFO] [stdout]    |                                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `hand::Deck`
[INFO] [stdout]  --> lib/rahjong/src/rules/jp/win.rs:1:25
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::{draw::Draw, hand::Deck, player::Player, tile::TileId};
[INFO] [stdout]   |                         ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Dragon`, `Honer`, `Num`, `SuitKind`, `Suit`, and `tile_set::TileSet`
[INFO] [stdout]  --> lib/rahjong/src/rules/jp.rs:9:15
[INFO] [stdout]   |
[INFO] [stdout] 9 |         self, tile_set::TileSet, Dragon, Honer, Num, Suit, SuitKind, TileFace, TileId, TileIndex,
[INFO] [stdout]   |               ^^^^^^^^^^^^^^^^^  ^^^^^^  ^^^^^  ^^^  ^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `hands`
[INFO] [stdout]   --> lib/rahjong/src/game.rs:33:13
[INFO] [stdout]    |
[INFO] [stdout] 33 |         let hands = self.wall().draw_next_n::<13>().await?;
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_hands`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `seq::SliceRandom`
[INFO] [stdout]  --> lib/rahjong/src/rules/jp.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | use rand::{seq::SliceRandom, Rng, SeedableRng};
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `gang`
[INFO] [stdout]    --> lib/rahjong/src/hand.rs:213:28
[INFO] [stdout]     |
[INFO] [stdout] 213 |     pub fn gang(&mut self, gang: Gang) -> Result<(), Gang> {
[INFO] [stdout]     |                            ^^^^ help: if this is intentional, prefix it with an underscore: `_gang`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `next`
[INFO] [stdout]    --> lib/rahjong/src/rules/jp/round.rs:137:21
[INFO] [stdout]     |
[INFO] [stdout] 137 |         if let Some(next) = self.draw {
[INFO] [stdout]     |                     ^^^^ help: if this is intentional, prefix it with an underscore: `_next`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `player`
[INFO] [stdout]    --> lib/rahjong/src/rules/jp.rs:187:30
[INFO] [stdout]     |
[INFO] [stdout] 187 |     pub fn operations(&self, player: Wind) -> Vec<Operation> {
[INFO] [stdout]     |                              ^^^^^^ help: if this is intentional, prefix it with an underscore: `_player`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of `async fn` in public traits is discouraged as auto trait bounds cannot be specified
[INFO] [stdout]   --> lib/rahjong/src/game.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 32 |     async fn round(&mut self) -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: you can suppress this lint if you plan to use the trait only in your own code, or do not care about auto traits like `Send` on the `Future`
[INFO] [stdout]    = note: `#[warn(async_fn_in_trait)]` on by default
[INFO] [stdout] help: you can alternatively desugar to a normal `fn` that returns `impl Future` and add any desired bounds such as `Send`, but these cannot be relaxed without a breaking API change
[INFO] [stdout]    |
[INFO] [stdout] 32 ~     fn round(&mut self) -> impl std::future::Future<Output = Result<(), Box<dyn std::error::Error>>> + Send {async {
[INFO] [stdout] 33 |         let hands = self.wall().draw_next_n::<13>().await?;
[INFO] [stdout] 34 |
[INFO] [stdout] 35 |         Ok(())
[INFO] [stdout] 36 ~     } }
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rahjong-tui-client v0.1.0 (/opt/rustwide/workdir/binary/tui-client)
[INFO] [stdout] warning: unused import: `prelude::Text`
[INFO] [stdout]  --> binary/tui-client/src/widget.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     prelude::Text,
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `widgets::*`
[INFO] [stdout]   --> binary/tui-client/src/main.rs:11:27
[INFO] [stdout]    |
[INFO] [stdout] 11 | use ratatui::{prelude::*, widgets::*};
[INFO] [stdout]    |                           ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `area`
[INFO] [stdout]   --> binary/tui-client/src/widget.rs:40:9
[INFO] [stdout]    |
[INFO] [stdout] 40 |         area: ratatui::prelude::Rect,
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_area`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]   --> binary/tui-client/src/widget.rs:41:9
[INFO] [stdout]    |
[INFO] [stdout] 41 |         buf: &mut ratatui::prelude::Buffer,
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `state`
[INFO] [stdout]   --> binary/tui-client/src/widget.rs:42:9
[INFO] [stdout]    |
[INFO] [stdout] 42 |         state: &mut Self::State,
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_state`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `doras` is never read
[INFO] [stdout]   --> binary/tui-client/src/widget.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct JpHandWidget<'a> {
[INFO] [stdout]    |            ------------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 16 |     doras: Vec<TileId>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> binary/tui-client/src/main.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 |     round.start();
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 22 |     let _ = round.start();
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling bytes v1.6.0
[INFO] [stderr]    Compiling tokio v1.37.0
[INFO] [stderr]    Compiling rahjong-server v0.1.0 (/opt/rustwide/workdir/binary/server)
[INFO] [stdout] warning: unused import: `bytes::Bytes`
[INFO] [stdout]  --> binary/server/src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use bytes::Bytes;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `AsyncRead` and `AsyncWrite`
[INFO] [stdout]  --> binary/server/src/main.rs:4:17
[INFO] [stdout]   |
[INFO] [stdout] 4 | use tokio::io::{AsyncRead, AsyncWrite};
[INFO] [stdout]   |                 ^^^^^^^^^  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cx`
[INFO] [stdout]   --> binary/server/src/main.rs:66:9
[INFO] [stdout]    |
[INFO] [stdout] 66 |         cx: &mut std::task::Context<'_>,
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_cx`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `inner` is never read
[INFO] [stdout]   --> binary/server/src/main.rs:59:5
[INFO] [stdout]    |
[INFO] [stdout] 58 | pub struct TcpStreamPull {
[INFO] [stdout]    |            ------------- field in this struct
[INFO] [stdout] 59 |     inner: tokio::net::tcp::OwnedReadHalf,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 33.07s
[INFO] running `Command { std: "docker" "inspect" "c629209c5cb5fad3b6b0c5fac3ea8531399618c24a05947a55563b88daef2054", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c629209c5cb5fad3b6b0c5fac3ea8531399618c24a05947a55563b88daef2054", kill_on_drop: false }`
[INFO] [stdout] c629209c5cb5fad3b6b0c5fac3ea8531399618c24a05947a55563b88daef2054
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Zrandomize-layout" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:819108c5571ea2e421544af4d832f968d213c87fbe3707a016657f43d2f853bc" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2025-01-18" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5781d29d262f46e1fde5ac6c64f4cb4b2b04a3dfd657e199f8f9932439bb1f8c
[INFO] running `Command { std: "docker" "start" "-a" "5781d29d262f46e1fde5ac6c64f4cb4b2b04a3dfd657e199f8f9932439bb1f8c", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stdout] warning: unused import: `SeedableRng`
[INFO] [stdout]  --> lib/rahjong/src/rules/jp.rs:1:35
[INFO] [stdout]   |
[INFO] [stdout] 1 | use rand::{seq::SliceRandom, Rng, SeedableRng};
[INFO] [stdout]   |                                   ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Win`
[INFO] [stdout]   --> lib/rahjong/src/rules/jp/round.rs:16:32
[INFO] [stdout]    |
[INFO] [stdout] 16 |     win::{Chankan, Ron, Tsumo, Win},
[INFO] [stdout]    |                                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `hand::Deck`
[INFO] [stdout]  --> lib/rahjong/src/rules/jp/win.rs:1:25
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::{draw::Draw, hand::Deck, player::Player, tile::TileId};
[INFO] [stdout]   |                         ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Dragon`, `Honer`, `Num`, `SuitKind`, `Suit`, and `tile_set::TileSet`
[INFO] [stdout]  --> lib/rahjong/src/rules/jp.rs:9:15
[INFO] [stdout]   |
[INFO] [stdout] 9 |         self, tile_set::TileSet, Dragon, Honer, Num, Suit, SuitKind, TileFace, TileId, TileIndex,
[INFO] [stdout]   |               ^^^^^^^^^^^^^^^^^  ^^^^^^  ^^^^^  ^^^  ^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `hands`
[INFO] [stdout]   --> lib/rahjong/src/game.rs:33:13
[INFO] [stdout]    |
[INFO] [stdout] 33 |         let hands = self.wall().draw_next_n::<13>().await?;
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_hands`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rahjong v0.1.0 (/opt/rustwide/workdir/lib/rahjong)
[INFO] [stdout] warning: unused import: `seq::SliceRandom`
[INFO] [stdout]  --> lib/rahjong/src/rules/jp.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | use rand::{seq::SliceRandom, Rng, SeedableRng};
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rahjong-tui-client v0.1.0 (/opt/rustwide/workdir/binary/tui-client)
[INFO] [stdout] warning: unused variable: `gang`
[INFO] [stdout]    --> lib/rahjong/src/hand.rs:213:28
[INFO] [stdout]     |
[INFO] [stdout] 213 |     pub fn gang(&mut self, gang: Gang) -> Result<(), Gang> {
[INFO] [stdout]     |                            ^^^^ help: if this is intentional, prefix it with an underscore: `_gang`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rahjong-server v0.1.0 (/opt/rustwide/workdir/binary/server)
[INFO] [stdout] warning: unused variable: `next`
[INFO] [stdout]    --> lib/rahjong/src/rules/jp/round.rs:137:21
[INFO] [stdout]     |
[INFO] [stdout] 137 |         if let Some(next) = self.draw {
[INFO] [stdout]     |                     ^^^^ help: if this is intentional, prefix it with an underscore: `_next`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `player`
[INFO] [stdout]    --> lib/rahjong/src/rules/jp.rs:187:30
[INFO] [stdout]     |
[INFO] [stdout] 187 |     pub fn operations(&self, player: Wind) -> Vec<Operation> {
[INFO] [stdout]     |                              ^^^^^^ help: if this is intentional, prefix it with an underscore: `_player`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of `async fn` in public traits is discouraged as auto trait bounds cannot be specified
[INFO] [stdout]   --> lib/rahjong/src/game.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 32 |     async fn round(&mut self) -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: you can suppress this lint if you plan to use the trait only in your own code, or do not care about auto traits like `Send` on the `Future`
[INFO] [stdout]    = note: `#[warn(async_fn_in_trait)]` on by default
[INFO] [stdout] help: you can alternatively desugar to a normal `fn` that returns `impl Future` and add any desired bounds such as `Send`, but these cannot be relaxed without a breaking API change
[INFO] [stdout]    |
[INFO] [stdout] 32 ~     fn round(&mut self) -> impl std::future::Future<Output = Result<(), Box<dyn std::error::Error>>> + Send {async {
[INFO] [stdout] 33 |         let hands = self.wall().draw_next_n::<13>().await?;
[INFO] [stdout] 34 |
[INFO] [stdout] 35 |         Ok(())
[INFO] [stdout] 36 ~     } }
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `bytes::Bytes`
[INFO] [stdout]  --> binary/server/src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use bytes::Bytes;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `AsyncRead` and `AsyncWrite`
[INFO] [stdout]  --> binary/server/src/main.rs:4:17
[INFO] [stdout]   |
[INFO] [stdout] 4 | use tokio::io::{AsyncRead, AsyncWrite};
[INFO] [stdout]   |                 ^^^^^^^^^  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `prelude::Text`
[INFO] [stdout]  --> binary/tui-client/src/widget.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     prelude::Text,
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `widgets::*`
[INFO] [stdout]   --> binary/tui-client/src/main.rs:11:27
[INFO] [stdout]    |
[INFO] [stdout] 11 | use ratatui::{prelude::*, widgets::*};
[INFO] [stdout]    |                           ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `area`
[INFO] [stdout]   --> binary/tui-client/src/widget.rs:40:9
[INFO] [stdout]    |
[INFO] [stdout] 40 |         area: ratatui::prelude::Rect,
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_area`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]   --> binary/tui-client/src/widget.rs:41:9
[INFO] [stdout]    |
[INFO] [stdout] 41 |         buf: &mut ratatui::prelude::Buffer,
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `state`
[INFO] [stdout]   --> binary/tui-client/src/widget.rs:42:9
[INFO] [stdout]    |
[INFO] [stdout] 42 |         state: &mut Self::State,
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_state`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `doras` is never read
[INFO] [stdout]   --> binary/tui-client/src/widget.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct JpHandWidget<'a> {
[INFO] [stdout]    |            ------------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 16 |     doras: Vec<TileId>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `SeedableRng`
[INFO] [stdout]  --> lib/rahjong/src/rules/jp.rs:1:35
[INFO] [stdout]   |
[INFO] [stdout] 1 | use rand::{seq::SliceRandom, Rng, SeedableRng};
[INFO] [stdout]   |                                   ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Win`
[INFO] [stdout]   --> lib/rahjong/src/rules/jp/round.rs:16:32
[INFO] [stdout]    |
[INFO] [stdout] 16 |     win::{Chankan, Ron, Tsumo, Win},
[INFO] [stdout]    |                                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `hand::Deck`
[INFO] [stdout]  --> lib/rahjong/src/rules/jp/win.rs:1:25
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::{draw::Draw, hand::Deck, player::Player, tile::TileId};
[INFO] [stdout]   |                         ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Dragon` and `tile_set::TileSet`
[INFO] [stdout]  --> lib/rahjong/src/rules/jp.rs:9:15
[INFO] [stdout]   |
[INFO] [stdout] 9 |         self, tile_set::TileSet, Dragon, Honer, Num, Suit, SuitKind, TileFace, TileId, TileIndex,
[INFO] [stdout]   |               ^^^^^^^^^^^^^^^^^  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cx`
[INFO] [stdout]   --> binary/server/src/main.rs:66:9
[INFO] [stdout]    |
[INFO] [stdout] 66 |         cx: &mut std::task::Context<'_>,
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_cx`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> binary/tui-client/src/main.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 |     round.start();
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 22 |     let _ = round.start();
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `inner` is never read
[INFO] [stdout]   --> binary/server/src/main.rs:59:5
[INFO] [stdout]    |
[INFO] [stdout] 58 | pub struct TcpStreamPull {
[INFO] [stdout]    |            ------------- field in this struct
[INFO] [stdout] 59 |     inner: tokio::net::tcp::OwnedReadHalf,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `hands`
[INFO] [stdout]   --> lib/rahjong/src/game.rs:33:13
[INFO] [stdout]    |
[INFO] [stdout] 33 |         let hands = self.wall().draw_next_n::<13>().await?;
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_hands`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `seq::SliceRandom`
[INFO] [stdout]  --> lib/rahjong/src/rules/jp.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | use rand::{seq::SliceRandom, Rng, SeedableRng};
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `gang`
[INFO] [stdout]    --> lib/rahjong/src/hand.rs:213:28
[INFO] [stdout]     |
[INFO] [stdout] 213 |     pub fn gang(&mut self, gang: Gang) -> Result<(), Gang> {
[INFO] [stdout]     |                            ^^^^ help: if this is intentional, prefix it with an underscore: `_gang`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `next`
[INFO] [stdout]    --> lib/rahjong/src/rules/jp/round.rs:137:21
[INFO] [stdout]     |
[INFO] [stdout] 137 |         if let Some(next) = self.draw {
[INFO] [stdout]     |                     ^^^^ help: if this is intentional, prefix it with an underscore: `_next`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `player`
[INFO] [stdout]    --> lib/rahjong/src/rules/jp.rs:187:30
[INFO] [stdout]     |
[INFO] [stdout] 187 |     pub fn operations(&self, player: Wind) -> Vec<Operation> {
[INFO] [stdout]     |                              ^^^^^^ help: if this is intentional, prefix it with an underscore: `_player`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of `async fn` in public traits is discouraged as auto trait bounds cannot be specified
[INFO] [stdout]   --> lib/rahjong/src/game.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 32 |     async fn round(&mut self) -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: you can suppress this lint if you plan to use the trait only in your own code, or do not care about auto traits like `Send` on the `Future`
[INFO] [stdout]    = note: `#[warn(async_fn_in_trait)]` on by default
[INFO] [stdout] help: you can alternatively desugar to a normal `fn` that returns `impl Future` and add any desired bounds such as `Send`, but these cannot be relaxed without a breaking API change
[INFO] [stdout]    |
[INFO] [stdout] 32 ~     fn round(&mut self) -> impl std::future::Future<Output = Result<(), Box<dyn std::error::Error>>> + Send {async {
[INFO] [stdout] 33 |         let hands = self.wall().draw_next_n::<13>().await?;
[INFO] [stdout] 34 |
[INFO] [stdout] 35 |         Ok(())
[INFO] [stdout] 36 ~     } }
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.17s
[INFO] running `Command { std: "docker" "inspect" "5781d29d262f46e1fde5ac6c64f4cb4b2b04a3dfd657e199f8f9932439bb1f8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5781d29d262f46e1fde5ac6c64f4cb4b2b04a3dfd657e199f8f9932439bb1f8c", kill_on_drop: false }`
[INFO] [stdout] 5781d29d262f46e1fde5ac6c64f4cb4b2b04a3dfd657e199f8f9932439bb1f8c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Zrandomize-layout" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:819108c5571ea2e421544af4d832f968d213c87fbe3707a016657f43d2f853bc" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2025-01-18" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 3de5aec40244ed4b54f93fe123491cb7bd06d3559a9ae47edc52cdb92ab06dae
[INFO] running `Command { std: "docker" "start" "-a" "3de5aec40244ed4b54f93fe123491cb7bd06d3559a9ae47edc52cdb92ab06dae", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr] warning: unused import: `SeedableRng`
[INFO] [stderr]  --> lib/rahjong/src/rules/jp.rs:1:35
[INFO] [stderr]   |
[INFO] [stderr] 1 | use rand::{seq::SliceRandom, Rng, SeedableRng};
[INFO] [stderr]   |                                   ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Win`
[INFO] [stderr]   --> lib/rahjong/src/rules/jp/round.rs:16:32
[INFO] [stderr]    |
[INFO] [stderr] 16 |     win::{Chankan, Ron, Tsumo, Win},
[INFO] [stderr]    |                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `hand::Deck`
[INFO] [stderr]  --> lib/rahjong/src/rules/jp/win.rs:1:25
[INFO] [stderr]   |
[INFO] [stderr] 1 | use crate::{draw::Draw, hand::Deck, player::Player, tile::TileId};
[INFO] [stderr]   |                         ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Dragon`, `Honer`, `Num`, `SuitKind`, `Suit`, and `tile_set::TileSet`
[INFO] [stderr]  --> lib/rahjong/src/rules/jp.rs:9:15
[INFO] [stderr]   |
[INFO] [stderr] 9 |         self, tile_set::TileSet, Dragon, Honer, Num, Suit, SuitKind, TileFace, TileId, TileIndex,
[INFO] [stderr]   |               ^^^^^^^^^^^^^^^^^  ^^^^^^  ^^^^^  ^^^  ^^^^  ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `hands`
[INFO] [stderr]   --> lib/rahjong/src/game.rs:33:13
[INFO] [stderr]    |
[INFO] [stderr] 33 |         let hands = self.wall().draw_next_n::<13>().await?;
[INFO] [stderr]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_hands`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `seq::SliceRandom`
[INFO] [stderr]  --> lib/rahjong/src/rules/jp.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | use rand::{seq::SliceRandom, Rng, SeedableRng};
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `gang`
[INFO] [stderr]    --> lib/rahjong/src/hand.rs:213:28
[INFO] [stderr]     |
[INFO] [stderr] 213 |     pub fn gang(&mut self, gang: Gang) -> Result<(), Gang> {
[INFO] [stderr]     |                            ^^^^ help: if this is intentional, prefix it with an underscore: `_gang`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `next`
[INFO] [stderr]    --> lib/rahjong/src/rules/jp/round.rs:137:21
[INFO] [stderr]     |
[INFO] [stderr] 137 |         if let Some(next) = self.draw {
[INFO] [stderr]     |                     ^^^^ help: if this is intentional, prefix it with an underscore: `_next`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `player`
[INFO] [stderr]    --> lib/rahjong/src/rules/jp.rs:187:30
[INFO] [stderr]     |
[INFO] [stderr] 187 |     pub fn operations(&self, player: Wind) -> Vec<Operation> {
[INFO] [stderr]     |                              ^^^^^^ help: if this is intentional, prefix it with an underscore: `_player`
[INFO] [stderr] 
[INFO] [stderr] warning: use of `async fn` in public traits is discouraged as auto trait bounds cannot be specified
[INFO] [stderr]   --> lib/rahjong/src/game.rs:32:5
[INFO] [stderr]    |
[INFO] [stderr] 32 |     async fn round(&mut self) -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: you can suppress this lint if you plan to use the trait only in your own code, or do not care about auto traits like `Send` on the `Future`
[INFO] [stderr]    = note: `#[warn(async_fn_in_trait)]` on by default
[INFO] [stderr] help: you can alternatively desugar to a normal `fn` that returns `impl Future` and add any desired bounds such as `Send`, but these cannot be relaxed without a breaking API change
[INFO] [stderr]    |
[INFO] [stderr] 32 ~     fn round(&mut self) -> impl std::future::Future<Output = Result<(), Box<dyn std::error::Error>>> + Send {async {
[INFO] [stderr] 33 |         let hands = self.wall().draw_next_n::<13>().await?;
[INFO] [stderr] 34 |
[INFO] [stderr] 35 |         Ok(())
[INFO] [stderr] 36 ~     } }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Dragon` and `tile_set::TileSet`
[INFO] [stderr]  --> lib/rahjong/src/rules/jp.rs:9:15
[INFO] [stderr]   |
[INFO] [stderr] 9 |         self, tile_set::TileSet, Dragon, Honer, Num, Suit, SuitKind, TileFace, TileId, TileIndex,
[INFO] [stderr]   |               ^^^^^^^^^^^^^^^^^  ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `rahjong` (lib) generated 10 warnings (run `cargo fix --lib -p rahjong` to apply 4 suggestions)
[INFO] [stderr] warning: `rahjong` (lib test) generated 10 warnings (9 duplicates) (run `cargo fix --lib -p rahjong --tests` to apply 1 suggestion)
[INFO] [stderr] warning: unused import: `bytes::Bytes`
[INFO] [stderr]  --> binary/server/src/main.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use bytes::Bytes;
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `AsyncRead` and `AsyncWrite`
[INFO] [stderr]  --> binary/server/src/main.rs:4:17
[INFO] [stderr]   |
[INFO] [stderr] 4 | use tokio::io::{AsyncRead, AsyncWrite};
[INFO] [stderr]   |                 ^^^^^^^^^  ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `cx`
[INFO] [stderr]   --> binary/server/src/main.rs:66:9
[INFO] [stderr]    |
[INFO] [stderr] 66 |         cx: &mut std::task::Context<'_>,
[INFO] [stderr]    |         ^^ help: if this is intentional, prefix it with an underscore: `_cx`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field `inner` is never read
[INFO] [stderr]   --> binary/server/src/main.rs:59:5
[INFO] [stderr]    |
[INFO] [stderr] 58 | pub struct TcpStreamPull {
[INFO] [stderr]    |            ------------- field in this struct
[INFO] [stderr] 59 |     inner: tokio::net::tcp::OwnedReadHalf,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `rahjong-server` (bin "rahjong-server" test) generated 4 warnings (run `cargo fix --bin "rahjong-server" --tests` to apply 2 suggestions)
[INFO] [stderr] warning: unused import: `prelude::Text`
[INFO] [stderr]  --> binary/tui-client/src/widget.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     prelude::Text,
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `widgets::*`
[INFO] [stderr]   --> binary/tui-client/src/main.rs:11:27
[INFO] [stderr]    |
[INFO] [stderr] 11 | use ratatui::{prelude::*, widgets::*};
[INFO] [stderr]    |                           ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `area`
[INFO] [stderr]   --> binary/tui-client/src/widget.rs:40:9
[INFO] [stderr]    |
[INFO] [stderr] 40 |         area: ratatui::prelude::Rect,
[INFO] [stderr]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_area`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `buf`
[INFO] [stderr]   --> binary/tui-client/src/widget.rs:41:9
[INFO] [stderr]    |
[INFO] [stderr] 41 |         buf: &mut ratatui::prelude::Buffer,
[INFO] [stderr]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `state`
[INFO] [stderr]   --> binary/tui-client/src/widget.rs:42:9
[INFO] [stderr]    |
[INFO] [stderr] 42 |         state: &mut Self::State,
[INFO] [stderr]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_state`
[INFO] [stderr] 
[INFO] [stderr] warning: field `doras` is never read
[INFO] [stderr]   --> binary/tui-client/src/widget.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub struct JpHandWidget<'a> {
[INFO] [stderr]    |            ------------ field in this struct
[INFO] [stderr] ...
[INFO] [stderr] 16 |     doras: Vec<TileId>,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> binary/tui-client/src/main.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 |     round.start();
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 22 |     let _ = round.start();
[INFO] [stderr]    |     +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `rahjong-tui-client` (bin "rahjong-tui-client" test) generated 7 warnings (run `cargo fix --bin "rahjong-tui-client" --tests` to apply 2 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/rahjong-8c241e9d327ad9a2)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test tile::tile_set::test_tile_set ... ok
[INFO] [stdout] test wall::test_game ... ok
[INFO] [stdout] test rules::jp::test_new_round ... ok
[INFO] [stdout] test rules::jp::round::test_round ... ok
[INFO] [stdout] test rules::jp::build_jp_tiles ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- rules::jp::build_jp_tiles stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'rules::jp::build_jp_tiles' panicked at lib/rahjong/src/rules/jp.rs:35:51:
[INFO] [stdout] Failed to write file: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x597a71d2207a - std::backtrace_rs::backtrace::libunwind::trace::hb059275cfc8d6126
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/../../backtrace/src/backtrace/libunwind.rs:116:5
[INFO] [stdout]    1:     0x597a71d2207a - std::backtrace_rs::backtrace::trace_unsynchronized::h2da071e4327ce3ee
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x597a71d2207a - std::sys::backtrace::_print_fmt::h842a1474e6f8d23f
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x597a71d2207a - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h71a62eb3b9696b12
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x597a71d49d43 - core::fmt::rt::Argument::fmt::hdb6b616786b41dc1
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/core/src/fmt/rt.rs:177:76
[INFO] [stdout]    5:     0x597a71d49d43 - core::fmt::write::h2cc1698af7e2d686
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/core/src/fmt/mod.rs:1440:21
[INFO] [stdout]    6:     0x597a71d1ebd3 - std::io::Write::write_fmt::hab1b4cd059a79022
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/io/mod.rs:1887:15
[INFO] [stdout]    7:     0x597a71d21ec2 - std::sys::backtrace::BacktraceLock::print::h147fe35b4ea13b08
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    8:     0x597a71d2349f - std::panicking::default_hook::{{closure}}::hbd44223dbdc0d208
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/panicking.rs:298:22
[INFO] [stdout]    9:     0x597a71d232b8 - std::panicking::default_hook::h20f81eb0576efcec
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/panicking.rs:322:9
[INFO] [stdout]   10:     0x597a71cb35f3 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::hdb53814c496a4d34
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/alloc/src/boxed.rs:2027:9
[INFO] [stdout]   11:     0x597a71cb35f3 - test::test_main::{{closure}}::hc0a4963c59427c24
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/test/src/lib.rs:134:21
[INFO] [stdout]   12:     0x597a71d23f93 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h591b2225413a77e9
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/alloc/src/boxed.rs:2027:9
[INFO] [stdout]   13:     0x597a71d23f93 - std::panicking::rust_panic_with_hook::h625eea43051b2edc
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/panicking.rs:839:13
[INFO] [stdout]   14:     0x597a71d23c4a - std::panicking::begin_panic_handler::{{closure}}::h4f9159cfbc3f6bd3
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/panicking.rs:704:13
[INFO] [stdout]   15:     0x597a71d22579 - std::sys::backtrace::__rust_end_short_backtrace::h0390abce48353151
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/sys/backtrace.rs:168:18
[INFO] [stdout]   16:     0x597a71d238dd - rust_begin_unwind
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/panicking.rs:695:5
[INFO] [stdout]   17:     0x597a71d486e0 - core::panicking::panic_fmt::h9e7c637e9e5f29c9
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/core/src/panicking.rs:75:14
[INFO] [stdout]   18:     0x597a71d48b56 - core::result::unwrap_failed::h7979f09313fe1849
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/core/src/result.rs:1704:5
[INFO] [stdout]   19:     0x597a71c69ecf - core::result::Result<T,E>::expect::h0785dcdf6683d5f2
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/core/src/result.rs:1061:23
[INFO] [stdout]   20:     0x597a71c6d1dd - rahjong::rules::jp::build_jp_tiles::hbe4d91cd8616f545
[INFO] [stdout]                                at /opt/rustwide/workdir/lib/rahjong/src/rules/jp.rs:35:5
[INFO] [stdout]   21:     0x597a71c6cee7 - rahjong::rules::jp::build_jp_tiles::{{closure}}::hc226b7f598c3e9d6
[INFO] [stdout]                                at /opt/rustwide/workdir/lib/rahjong/src/rules/jp.rs:18:20
[INFO] [stdout]   22:     0x597a71c76646 - core::ops::function::FnOnce::call_once::hb8bb2e236b3792fe
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   23:     0x597a71cb8d4b - core::ops::function::FnOnce::call_once::he27718dfdd183f43
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x597a71cb8d4b - test::__rust_begin_short_backtrace::h4e84902998457a5d
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/test/src/lib.rs:632:18
[INFO] [stdout]   25:     0x597a71cb7c83 - test::run_test_in_process::{{closure}}::h7176fd18fc1feca0
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/test/src/lib.rs:655:60
[INFO] [stdout]   26:     0x597a71cb7c83 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hf79cff2a624d8cf7
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   27:     0x597a71cb7c83 - std::panicking::try::do_call::h3da0561d9ab99c25
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/panicking.rs:587:40
[INFO] [stdout]   28:     0x597a71cb7c83 - std::panicking::try::h41c9fa508bc61df6
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/panicking.rs:550:19
[INFO] [stdout]   29:     0x597a71cb7c83 - std::panic::catch_unwind::h6b3ff07bb5afad93
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/panic.rs:358:14
[INFO] [stdout]   30:     0x597a71cb7c83 - test::run_test_in_process::hc7253dd11b39b9f4
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/test/src/lib.rs:655:27
[INFO] [stdout]   31:     0x597a71cb7c83 - test::run_test::{{closure}}::hfb2007f8649c30bb
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/test/src/lib.rs:576:43
[INFO] [stdout]   32:     0x597a71c7ad65 - test::run_test::{{closure}}::h56a17aa7a282a9f4
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/test/src/lib.rs:606:41
[INFO] [stdout]   33:     0x597a71c7ad65 - std::sys::backtrace::__rust_begin_short_backtrace::hd2d2d2fb8e8c6aac
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/sys/backtrace.rs:152:18
[INFO] [stdout]   34:     0x597a71c7e64a - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h4faa3f9db6133423
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/thread/mod.rs:559:17
[INFO] [stdout]   35:     0x597a71c7e64a - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hf2e855a36a4ea846
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   36:     0x597a71c7e64a - std::panicking::try::do_call::h2f73af3616c35465
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/panicking.rs:587:40
[INFO] [stdout]   37:     0x597a71c7e64a - std::panicking::try::hd1660ce9efadef5a
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/panicking.rs:550:19
[INFO] [stdout]   38:     0x597a71c7e64a - std::panic::catch_unwind::h5ee8d7823b8ca744
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/panic.rs:358:14
[INFO] [stdout]   39:     0x597a71c7e64a - std::thread::Builder::spawn_unchecked_::{{closure}}::h53c3a1894dce8407
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/thread/mod.rs:557:30
[INFO] [stdout]   40:     0x597a71c7e64a - core::ops::function::FnOnce::call_once{{vtable.shim}}::h048ce291ad4f62bf
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   41:     0x597a71d27ecb - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::ha52bedf99a3b4981
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/alloc/src/boxed.rs:2013:9
[INFO] [stdout]   42:     0x597a71d27ecb - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h567748934d80ccf8
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/alloc/src/boxed.rs:2013:9
[INFO] [stdout]   43:     0x597a71d27ecb - std::sys::pal::unix::thread::Thread::new::thread_start::h2d970728ae887adc
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/sys/pal/unix/thread.rs:106:17
[INFO] [stdout]   44:     0x7bbb4299dac3 - <unknown>
[INFO] [stdout]   45:     0x7bbb42a2ea04 - clone
[INFO] [stdout]   46:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     rules::jp::build_jp_tiles
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 4 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.04s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `-p rahjong --lib`
[INFO] running `Command { std: "docker" "inspect" "3de5aec40244ed4b54f93fe123491cb7bd06d3559a9ae47edc52cdb92ab06dae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3de5aec40244ed4b54f93fe123491cb7bd06d3559a9ae47edc52cdb92ab06dae", kill_on_drop: false }`
[INFO] [stdout] 3de5aec40244ed4b54f93fe123491cb7bd06d3559a9ae47edc52cdb92ab06dae
