[INFO] cloning repository https://github.com/KisaragiEffective/rust-generic-dp
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/KisaragiEffective/rust-generic-dp" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKisaragiEffective%2Frust-generic-dp", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKisaragiEffective%2Frust-generic-dp'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1363d18d723211ebec4cf647303e644e72f04e41
[INFO] checking KisaragiEffective/rust-generic-dp against f7d782a3be46d6bb4b9792fe69a61db389ba1769 for pr-161358
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKisaragiEffective%2Frust-generic-dp" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/KisaragiEffective/rust-generic-dp
[INFO] finished tweaking git repo https://github.com/KisaragiEffective/rust-generic-dp
[INFO] tweaked toml for git repo https://github.com/KisaragiEffective/rust-generic-dp written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/KisaragiEffective/rust-generic-dp on toolchain f7d782a3be46d6bb4b9792fe69a61db389ba1769
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f7d782a3be46d6bb4b9792fe69a61db389ba1769" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/KisaragiEffective/rust-generic-dp 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" "+f7d782a3be46d6bb4b9792fe69a61db389ba1769" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded non-empty-vec v0.2.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:8683fc1fc2eb5c9ac98e0d076ab094b2ffac7f99da555d2b6a2e27f346de2ec7" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 663688c29944afff3d62de5b5cce94c3f0be8374eecc9d717f63d49de47d87b8
[INFO] running `Command { std: "docker" "start" "663688c29944afff3d62de5b5cce94c3f0be8374eecc9d717f63d49de47d87b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "663688c29944afff3d62de5b5cce94c3f0be8374eecc9d717f63d49de47d87b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "663688c29944afff3d62de5b5cce94c3f0be8374eecc9d717f63d49de47d87b8" "/opt/rustwide/cargo-home/bin/cargo" "+f7d782a3be46d6bb4b9792fe69a61db389ba1769" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "663688c29944afff3d62de5b5cce94c3f0be8374eecc9d717f63d49de47d87b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "663688c29944afff3d62de5b5cce94c3f0be8374eecc9d717f63d49de47d87b8" "/opt/rustwide/cargo-home/bin/cargo" "+f7d782a3be46d6bb4b9792fe69a61db389ba1769" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]     Checking non-empty-vec v0.2.3
[INFO] [stderr]     Checking untitled12345 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `NonEmpty` and `ne_vec`
[INFO] [stdout]  --> src/test/fib_perf.rs:1:21
[INFO] [stdout]   |
[INFO] [stdout] 1 | use non_empty_vec::{ne_vec, NonEmpty};
[INFO] [stdout]   |                     ^^^^^^  ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `CacheAll`, `CacheArray`, and `CacheVec`
[INFO] [stdout]  --> src/test/fib_perf.rs:2:20
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::cache::{CacheAll, CacheArray, CacheVec};
[INFO] [stdout]   |                    ^^^^^^^^  ^^^^^^^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::collecting::Sum`
[INFO] [stdout]  --> src/test/fib_perf.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::collecting::Sum;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::dp::complex::ComplexDP`
[INFO] [stdout]  --> src/test/fib_perf.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::dp::complex::ComplexDP;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::dp::get_state::SolverFactory`
[INFO] [stdout]  --> src/test/fib_perf.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::dp::get_state::SolverFactory;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::dp::simple_dp`
[INFO] [stdout]  --> src/test/fib_perf.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::dp::simple_dp;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::dp::traits::DP`
[INFO] [stdout]  --> src/test/fib_perf.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use crate::dp::traits::DP;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `run_dp` and `run_print_time`
[INFO] [stdout]  --> src/test/fib_perf.rs:8:19
[INFO] [stdout]   |
[INFO] [stdout] 8 | use crate::test::{run_dp, run_print_time};
[INFO] [stdout]   |                   ^^^^^^  ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Commutative` is never used
[INFO] [stdout]   --> src/collecting.rs:15:11
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub trait Commutative {}
[INFO] [stdout]    |           ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Monoid` is never used
[INFO] [stdout]   --> src/collecting.rs:23:11
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub trait Monoid<A>: Magma<A> {
[INFO] [stdout]    |           ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Modded` is never constructed
[INFO] [stdout]   --> src/collecting.rs:42:12
[INFO] [stdout]    |
[INFO] [stdout] 42 | pub struct Modded<Back, T> {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `NoCache` is never constructed
[INFO] [stdout]   --> src/cache.rs:48:12
[INFO] [stdout]    |
[INFO] [stdout] 48 | pub struct NoCache;
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new_with_capacity` is never used
[INFO] [stdout]   --> src/cache.rs:67:12
[INFO] [stdout]    |
[INFO] [stdout] 62 | impl <V> CacheVec<V> {
[INFO] [stdout]    | -------------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 67 |     pub fn new_with_capacity(initial_capacity: usize) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `simple_dp` is never used
[INFO] [stdout]   --> src/dp.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub fn simple_dp<'dp, I: Copy, R: Copy, M: Copy + Magma<R>, Solver: ProblemProxy<I, State<I, R>, PartialAnswer>, PartialAnswer>(
[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 `ComplexDP` is never constructed
[INFO] [stdout]   --> src/dp/complex.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub struct ComplexDP<
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `State` is never used
[INFO] [stdout]   --> src/dp/complex.rs:25:10
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub enum State<A, F, I> {
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/dp/complex.rs:51:19
[INFO] [stdout]    |
[INFO] [stdout] 44 | / impl<
[INFO] [stdout] 45 | |     I,
[INFO] [stdout] 46 | |     ProbAnswer,
[INFO] [stdout] 47 | |     SRI,
[INFO] [stdout] 48 | |     PartialProblemAnswerCombiner,
[INFO] [stdout] 49 | |     Solver
[INFO] [stdout] 50 | | > ComplexDP<I, ProbAnswer, SRI, PartialProblemAnswerCombiner, Solver> {
[INFO] [stdout]    | |_____________________________________________________________________- associated function in this implementation
[INFO] [stdout] 51 |       pub(crate) fn new(solver: Solver) -> Self {
[INFO] [stdout]    |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SimpleDPRunner` is never constructed
[INFO] [stdout]   --> src/dp/simple.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub struct SimpleDPRunner<'dp, I, R, M: Magma<R>, Solver> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `State` is never used
[INFO] [stdout]   --> src/dp/simple.rs:61:10
[INFO] [stdout]    |
[INFO] [stdout] 61 | pub enum State<I, R> {
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `DP` is never used
[INFO] [stdout]  --> src/dp/traits.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub trait DP<'r, Index, Answer> {
[INFO] [stdout]   |           ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `ProblemProxy` is never used
[INFO] [stdout]  --> src/dp/get_state.rs:6:11
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub trait ProblemProxy<Input, State, Answer> {
[INFO] [stdout]   |           ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SolverFactory` is never constructed
[INFO] [stdout]   --> src/dp/get_state.rs:27:12
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub struct SolverFactory;
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `function` and `function_with_cache` are never used
[INFO] [stdout]   --> src/dp/get_state.rs:29:12
[INFO] [stdout]    |
[INFO] [stdout] 28 | impl SolverFactory {
[INFO] [stdout]    | ------------------ associated functions in this implementation
[INFO] [stdout] 29 |     pub fn function<Input, State: StateExtractor<PartialAnswer>, PartialAnswer>(f: impl Fn(Input) -> State) -> impl ProblemProxy<Inp...
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 33 |     pub fn function_with_cache<
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Function` is never constructed
[INFO] [stdout]   --> src/dp/get_state.rs:46:8
[INFO] [stdout]    |
[INFO] [stdout] 46 | struct Function<F: Fn(Input) -> State, Input, State: StateExtractor<PA>, PA>(F, PhantomData<(Input, State, PA)>);
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FunctionWithCache` is never constructed
[INFO] [stdout]   --> src/dp/get_state.rs:63:8
[INFO] [stdout]    |
[INFO] [stdout] 63 | struct FunctionWithCache<F: Fn(Input) -> State, CP: ArbitraryScopeCachePolicy<Input, PartialAnswer>, Input, State, PartialAnswer> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `StateExtractor` is never used
[INFO] [stdout]  --> src/dp/state.rs:3:11
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub trait StateExtractor<T> {
[INFO] [stdout]   |           ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Magma` is never used
[INFO] [stdout]  --> src/collecting.rs:5:11
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub trait Magma<A> {
[INFO] [stdout]   |           ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Commutative` is never used
[INFO] [stdout]   --> src/collecting.rs:15:11
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub trait Commutative {}
[INFO] [stdout]    |           ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Monoid` is never used
[INFO] [stdout]   --> src/collecting.rs:23:11
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub trait Monoid<A>: Magma<A> {
[INFO] [stdout]    |           ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Sum` is never constructed
[INFO] [stdout]   --> src/collecting.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub struct Sum<T>(PhantomData<T>);
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/collecting.rs:31:19
[INFO] [stdout]    |
[INFO] [stdout] 30 | impl<T> Sum<T> {
[INFO] [stdout]    | -------------- associated function in this implementation
[INFO] [stdout] 31 |     pub(crate) fn new() -> Self {
[INFO] [stdout]    |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Modded` is never constructed
[INFO] [stdout]   --> src/collecting.rs:42:12
[INFO] [stdout]    |
[INFO] [stdout] 42 | pub struct Modded<Back, T> {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Reducer` is never used
[INFO] [stdout]   --> src/collecting.rs:52:11
[INFO] [stdout]    |
[INFO] [stdout] 52 | pub trait Reducer<T> {
[INFO] [stdout]    |           ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Option::<T>::map_or` that must be used
[INFO] [stdout]   --> src/dp/get_state.rs:79:9
[INFO] [stdout]    |
[INFO] [stdout] 79 | /         v.get_value().map_or((), |pa| {
[INFO] [stdout] 80 | |             self.update_cache(input, pa);
[INFO] [stdout] 81 | |         });
[INFO] [stdout]    | |__________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: if you don't need the returned value, use `if let` instead
[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] 79 |         let _ = v.get_value().map_or((), |pa| {
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ReduceByMagma` is never constructed
[INFO] [stdout]   --> src/collecting.rs:56:12
[INFO] [stdout]    |
[INFO] [stdout] 56 | pub struct ReduceByMagma<T, M>(M, PhantomData<T>);
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.deref()` on a reference in this situation does nothing
[INFO] [stdout]   --> src/dp/state.rs:12:21
[INFO] [stdout]    |
[INFO] [stdout] 12 |         self.deref().deref().get_value()
[INFO] [stdout]    |                     ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]    |
[INFO] [stdout]    = note: the type `State` does not implement `Deref`, so calling `deref` on `&State` copies the reference, which does not do anything and can be removed
[INFO] [stdout]    = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/collecting.rs:67:12
[INFO] [stdout]    |
[INFO] [stdout] 66 | impl<T, M> ReduceByMagma<T, M> {
[INFO] [stdout]    | ------------------------------ associated function in this implementation
[INFO] [stdout] 67 |     pub fn new(magma: M) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `ArbitraryScopeCachePolicy` is never used
[INFO] [stdout]   --> src/cache.rs:16:11
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub trait ArbitraryScopeCachePolicy<K, V>: for<'a> ScopedCachePolicy<'a, K, V> {
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `ScopedCachePolicy` is never used
[INFO] [stdout]   --> src/cache.rs:21:11
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub trait ScopedCachePolicy<'a, K, V> {
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `CacheAll` is never constructed
[INFO] [stdout]   --> src/cache.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub struct CacheAll<K, V> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/cache.rs:31:12
[INFO] [stdout]    |
[INFO] [stdout] 30 | impl<K, V> CacheAll<K, V> {
[INFO] [stdout]    | ------------------------- associated function in this implementation
[INFO] [stdout] 31 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `NoCache` is never constructed
[INFO] [stdout]   --> src/cache.rs:48:12
[INFO] [stdout]    |
[INFO] [stdout] 48 | pub struct NoCache;
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `CacheVec` is never constructed
[INFO] [stdout]   --> src/cache.rs:60:12
[INFO] [stdout]    |
[INFO] [stdout] 60 | pub struct CacheVec<T>(Vec<Option<T>>);
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `new` and `new_with_capacity` are never used
[INFO] [stdout]   --> src/cache.rs:63:12
[INFO] [stdout]    |
[INFO] [stdout] 62 | impl <V> CacheVec<V> {
[INFO] [stdout]    | -------------------- associated functions in this implementation
[INFO] [stdout] 63 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 67 |     pub fn new_with_capacity(initial_capacity: usize) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `CacheArray` is never constructed
[INFO] [stdout]   --> src/cache.rs:94:12
[INFO] [stdout]    |
[INFO] [stdout] 94 | pub struct CacheArray<T, const N: usize>([Option<T>; N]);
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/cache.rs:97:12
[INFO] [stdout]    |
[INFO] [stdout] 96 | impl <T: Clone, const L: usize> CacheArray<T, L> {
[INFO] [stdout]    | ------------------------------------------------ associated function in this implementation
[INFO] [stdout] 97 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run_print_time` is never used
[INFO] [stdout]  --> src/test.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn run_print_time<'a, F: 'a + FnOnce() -> T, T>(message: &'a (impl Display + ?Sized), f: F) -> T {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run_dp` is never used
[INFO] [stdout]   --> src/test.rs:18:4
[INFO] [stdout]    |
[INFO] [stdout] 18 | fn run_dp<'a, Index, Output: 'a + Display>(index: Index, dp: &'a (impl DP<'a, Index, Output> + 'a)) {
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `inner_test` is never used
[INFO] [stdout]   --> src/test/yukicoder/p44.rs:18:4
[INFO] [stdout]    |
[INFO] [stdout] 18 | fn inner_test(index: usize) -> u64 {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `tap_non_empty_uninit_vec` is never used
[INFO] [stdout]  --> src/wrap_unsafe/maybe_garbage_vec.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn tap_non_empty_uninit_vec<R>(len: usize, tap: impl FnOnce(&mut NonEmpty<MaybeUninit<R>>)) -> NonEmpty<R> {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Option::<T>::map_or` that must be used
[INFO] [stdout]   --> src/dp/get_state.rs:79:9
[INFO] [stdout]    |
[INFO] [stdout] 79 | /         v.get_value().map_or((), |pa| {
[INFO] [stdout] 80 | |             self.update_cache(input, pa);
[INFO] [stdout] 81 | |         });
[INFO] [stdout]    | |__________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: if you don't need the returned value, use `if let` instead
[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] 79 |         let _ = v.get_value().map_or((), |pa| {
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.deref()` on a reference in this situation does nothing
[INFO] [stdout]   --> src/dp/state.rs:12:21
[INFO] [stdout]    |
[INFO] [stdout] 12 |         self.deref().deref().get_value()
[INFO] [stdout]    |                     ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]    |
[INFO] [stdout]    = note: the type `State` does not implement `Deref`, so calling `deref` on `&State` copies the reference, which does not do anything and can be removed
[INFO] [stdout]    = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.17s
[INFO] running `Command { std: "docker" "inspect" "663688c29944afff3d62de5b5cce94c3f0be8374eecc9d717f63d49de47d87b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "663688c29944afff3d62de5b5cce94c3f0be8374eecc9d717f63d49de47d87b8", kill_on_drop: false }`
[INFO] [stdout] 663688c29944afff3d62de5b5cce94c3f0be8374eecc9d717f63d49de47d87b8