[INFO] cloning repository https://github.com/crome110/rs-mahjong
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/crome110/rs-mahjong" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcrome110%2Frs-mahjong", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcrome110%2Frs-mahjong'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 360fcd80785a081752452a74b455e94490eee813
[INFO] checking crome110/rs-mahjong against try#63132bd615c9bf75e93af8405d00064212331708 for pr-153975
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcrome110%2Frs-mahjong" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/crome110/rs-mahjong
[INFO] finished tweaking git repo https://github.com/crome110/rs-mahjong
[INFO] tweaked toml for git repo https://github.com/crome110/rs-mahjong written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/crome110/rs-mahjong on toolchain 63132bd615c9bf75e93af8405d00064212331708
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+63132bd615c9bf75e93af8405d00064212331708" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/crome110/rs-mahjong 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" "+63132bd615c9bf75e93af8405d00064212331708" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded backtrace v0.3.32
[INFO] [stderr]   Downloaded syn v0.15.38
[INFO] [stderr]   Downloaded libc v0.2.58
[INFO] [stderr]   Downloaded backtrace-sys v0.1.29
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+63132bd615c9bf75e93af8405d00064212331708" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5eb3067efefbf9a31aa9fc1a7ab3165a7f5b2c63fbb1e8b682b3733a54c42dfc
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[INFO] running `Command { std: "docker" "rm" "-f" "5eb3067efefbf9a31aa9fc1a7ab3165a7f5b2c63fbb1e8b682b3733a54c42dfc", kill_on_drop: false }`
[INFO] [stdout] 5eb3067efefbf9a31aa9fc1a7ab3165a7f5b2c63fbb1e8b682b3733a54c42dfc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+63132bd615c9bf75e93af8405d00064212331708" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a713679d84599c19b5fbdb01469d3364f4e5344e439172a396d4c0c0f5b0c948
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[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling syn v0.15.38
[INFO] [stderr]    Compiling cc v1.0.37
[INFO] [stderr]    Compiling libc v0.2.58
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]     Checking rustc-demangle v0.1.15
[INFO] [stderr]     Checking cfg-if v0.1.9
[INFO] [stderr]    Compiling backtrace-sys v0.1.29
[INFO] [stderr]    Compiling quote v0.6.12
[INFO] [stderr]     Checking backtrace v0.3.32
[INFO] [stderr]    Compiling synstructure v0.10.2
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]     Checking mahjong v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/yaku.rs:83:23
[INFO] [stdout]    |
[INFO] [stdout] 83 |         pub rule: Box<Fn(&Wait) -> Option<Han>>,
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 83 |         pub rule: Box<dyn Fn(&Wait) -> Option<Han>>,
[INFO] [stdout]    |                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/yaku.rs:87:28
[INFO] [stdout]    |
[INFO] [stdout] 87 |         pub fu: Option<Box<Fn(&bool) -> Fu>>,
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 87 |         pub fu: Option<Box<dyn Fn(&bool) -> Fu>>,
[INFO] [stdout]    |                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/yaku.rs:105:23
[INFO] [stdout]     |
[INFO] [stdout] 105 |         pub rule: Box<Fn(&Wait, &Vec<Tile>) -> u32>,
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 105 |         pub rule: Box<dyn Fn(&Wait, &Vec<Tile>) -> u32>,
[INFO] [stdout]     |                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/yaku.rs:83:23
[INFO] [stdout]    |
[INFO] [stdout] 83 |         pub rule: Box<Fn(&Wait) -> Option<Han>>,
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 83 |         pub rule: Box<dyn Fn(&Wait) -> Option<Han>>,
[INFO] [stdout]    |                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/yaku.rs:87:28
[INFO] [stdout]    |
[INFO] [stdout] 87 |         pub fu: Option<Box<Fn(&bool) -> Fu>>,
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 87 |         pub fu: Option<Box<dyn Fn(&bool) -> Fu>>,
[INFO] [stdout]    |                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/yaku.rs:105:23
[INFO] [stdout]     |
[INFO] [stdout] 105 |         pub rule: Box<Fn(&Wait, &Vec<Tile>) -> u32>,
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 105 |         pub rule: Box<dyn Fn(&Wait, &Vec<Tile>) -> u32>,
[INFO] [stdout]     |                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/yaku.rs:91:70
[INFO] [stdout]    |
[INFO] [stdout] 91 | ...   pub fn new(name: &str, sub: Option<Box<HandYaku>>, rule: Box<Fn(&Wait) -> Option<Han>>, fu: Option<Box<Fn(&bool) -> Fu>>) -> S...
[INFO] [stdout]    |                                                                    ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 91 |         pub fn new(name: &str, sub: Option<Box<HandYaku>>, rule: Box<dyn Fn(&Wait) -> Option<Han>>, fu: Option<Box<Fn(&bool) -> Fu>>) -> Self {
[INFO] [stdout]    |                                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/yaku.rs:91:112
[INFO] [stdout]    |
[INFO] [stdout] 91 | ...   pub fn new(name: &str, sub: Option<Box<HandYaku>>, rule: Box<Fn(&Wait) -> Option<Han>>, fu: Option<Box<Fn(&bool) -> Fu>>) -> S...
[INFO] [stdout]    |                                                                                                              ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 91 |         pub fn new(name: &str, sub: Option<Box<HandYaku>>, rule: Box<Fn(&Wait) -> Option<Han>>, fu: Option<Box<dyn Fn(&bool) -> Fu>>) -> Self {
[INFO] [stdout]    |                                                                                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/yaku.rs:111:42
[INFO] [stdout]     |
[INFO] [stdout] 111 |         pub fn new(name: &str, rule: Box<Fn(&Wait, &Vec<Tile>) -> u32>, sub: Option<Box<Yakuman>>) -> Self {
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 111 |         pub fn new(name: &str, rule: Box<dyn Fn(&Wait, &Vec<Tile>) -> u32>, sub: Option<Box<Yakuman>>) -> Self {
[INFO] [stdout]     |                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/yaku.rs:91:70
[INFO] [stdout]    |
[INFO] [stdout] 91 | ...   pub fn new(name: &str, sub: Option<Box<HandYaku>>, rule: Box<Fn(&Wait) -> Option<Han>>, fu: Option<Box<Fn(&bool) -> Fu>>) -> S...
[INFO] [stdout]    |                                                                    ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 91 |         pub fn new(name: &str, sub: Option<Box<HandYaku>>, rule: Box<dyn Fn(&Wait) -> Option<Han>>, fu: Option<Box<Fn(&bool) -> Fu>>) -> Self {
[INFO] [stdout]    |                                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/yaku.rs:91:112
[INFO] [stdout]    |
[INFO] [stdout] 91 | ...   pub fn new(name: &str, sub: Option<Box<HandYaku>>, rule: Box<Fn(&Wait) -> Option<Han>>, fu: Option<Box<Fn(&bool) -> Fu>>) -> S...
[INFO] [stdout]    |                                                                                                              ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 91 |         pub fn new(name: &str, sub: Option<Box<HandYaku>>, rule: Box<Fn(&Wait) -> Option<Han>>, fu: Option<Box<dyn Fn(&bool) -> Fu>>) -> Self {
[INFO] [stdout]    |                                                                                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/yaku.rs:111:42
[INFO] [stdout]     |
[INFO] [stdout] 111 |         pub fn new(name: &str, rule: Box<Fn(&Wait, &Vec<Tile>) -> u32>, sub: Option<Box<Yakuman>>) -> Self {
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 111 |         pub fn new(name: &str, rule: Box<dyn Fn(&Wait, &Vec<Tile>) -> u32>, sub: Option<Box<Yakuman>>) -> Self {
[INFO] [stdout]     |                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `pong` is never used
[INFO] [stdout]    --> src/parse.rs:158:8
[INFO] [stdout]     |
[INFO] [stdout] 157 | impl Node {
[INFO] [stdout]     | --------- method in this implementation
[INFO] [stdout] 158 |     fn pong(&self) -> &Box<Option<Node>> {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DisplayVec` is never constructed
[INFO] [stdout]    --> src/groups.rs:239:12
[INFO] [stdout]     |
[INFO] [stdout] 239 | pub struct DisplayVec<T: Display + Debug>(pub Vec<T>);
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `situation`, `dora`, and `ura_dora` are never read
[INFO] [stdout]   --> src/evaluate.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct Evaluator {
[INFO] [stdout]    |            --------- fields in this struct
[INFO] [stdout] 13 |     /// 確定している状況役(リーチ、ツモなど)
[INFO] [stdout] 14 |     situation: Vec<SituationYaku>,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 24 |     dora: Vec<Tile>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 25 |     /// 裏ドラ
[INFO] [stdout] 26 |     ura_dora: Vec<Tile>,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `evaluate` and `evaluate_str` are never used
[INFO] [stdout]    --> src/evaluate.rs:532:12
[INFO] [stdout]     |
[INFO] [stdout] 531 | impl Evaluator {
[INFO] [stdout]     | -------------- methods in this implementation
[INFO] [stdout] 532 |     pub fn evaluate(&self, parsed_hand: &ParsedHand, draw: bool, situation: &Vec<SituationYaku>) -> Option<Evaluated> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 618 |     pub fn evaluate_str(&self, string: &str, draw: bool, situation: &Vec<SituationYaku>) -> Result<Option<Evaluated>, failure::Erro...
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/parse.rs:225:9
[INFO] [stdout]     |
[INFO] [stdout] 225 |         &self.pong.clone().map(|ref node| vec.append(&mut node.search_leafs()));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 225 |         let _ = &self.pong.clone().map(|ref node| vec.append(&mut node.search_leafs()));
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/parse.rs:226:9
[INFO] [stdout]     |
[INFO] [stdout] 226 |         &self.chow.clone().map(|ref node| vec.append(&mut node.search_leafs()));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 226 |         let _ = &self.chow.clone().map(|ref node| vec.append(&mut node.search_leafs()));
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `pong` is never used
[INFO] [stdout]    --> src/parse.rs:158:8
[INFO] [stdout]     |
[INFO] [stdout] 157 | impl Node {
[INFO] [stdout]     | --------- method in this implementation
[INFO] [stdout] 158 |     fn pong(&self) -> &Box<Option<Node>> {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DisplayVec` is never constructed
[INFO] [stdout]    --> src/groups.rs:239:12
[INFO] [stdout]     |
[INFO] [stdout] 239 | pub struct DisplayVec<T: Display + Debug>(pub Vec<T>);
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `situation`, `dora`, and `ura_dora` are never read
[INFO] [stdout]   --> src/evaluate.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct Evaluator {
[INFO] [stdout]    |            --------- fields in this struct
[INFO] [stdout] 13 |     /// 確定している状況役(リーチ、ツモなど)
[INFO] [stdout] 14 |     situation: Vec<SituationYaku>,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 24 |     dora: Vec<Tile>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 25 |     /// 裏ドラ
[INFO] [stdout] 26 |     ura_dora: Vec<Tile>,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `evaluate` and `evaluate_str` are never used
[INFO] [stdout]    --> src/evaluate.rs:532:12
[INFO] [stdout]     |
[INFO] [stdout] 531 | impl Evaluator {
[INFO] [stdout]     | -------------- methods in this implementation
[INFO] [stdout] 532 |     pub fn evaluate(&self, parsed_hand: &ParsedHand, draw: bool, situation: &Vec<SituationYaku>) -> Option<Evaluated> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 618 |     pub fn evaluate_str(&self, string: &str, draw: bool, situation: &Vec<SituationYaku>) -> Result<Option<Evaluated>, failure::Erro...
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/parse.rs:225:9
[INFO] [stdout]     |
[INFO] [stdout] 225 |         &self.pong.clone().map(|ref node| vec.append(&mut node.search_leafs()));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 225 |         let _ = &self.pong.clone().map(|ref node| vec.append(&mut node.search_leafs()));
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/parse.rs:226:9
[INFO] [stdout]     |
[INFO] [stdout] 226 |         &self.chow.clone().map(|ref node| vec.append(&mut node.search_leafs()));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 226 |         let _ = &self.chow.clone().map(|ref node| vec.append(&mut node.search_leafs()));
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.38s
[INFO] running `Command { std: "docker" "inspect" "a713679d84599c19b5fbdb01469d3364f4e5344e439172a396d4c0c0f5b0c948", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a713679d84599c19b5fbdb01469d3364f4e5344e439172a396d4c0c0f5b0c948", kill_on_drop: false }`
[INFO] [stdout] a713679d84599c19b5fbdb01469d3364f4e5344e439172a396d4c0c0f5b0c948
