[INFO] cloning repository https://github.com/pan1997/mcts-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pan1997/mcts-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpan1997%2Fmcts-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpan1997%2Fmcts-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0ef91280f87c0eead134bf33c787ff8cabfdbfb1
[INFO] checking pan1997/mcts-rs against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpan1997%2Fmcts-rs" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/pan1997/mcts-rs on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/pan1997/mcts-rs
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[INFO] tweaked toml for git repo https://github.com/pan1997/mcts-rs written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/pan1997/mcts-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 590ff5345693e59a74ba4cc7bcd35339a2940848972dbe4e1ce2e3bb0b30535a
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "590ff5345693e59a74ba4cc7bcd35339a2940848972dbe4e1ce2e3bb0b30535a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "590ff5345693e59a74ba4cc7bcd35339a2940848972dbe4e1ce2e3bb0b30535a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "590ff5345693e59a74ba4cc7bcd35339a2940848972dbe4e1ce2e3bb0b30535a", kill_on_drop: false }`
[INFO] [stdout] 590ff5345693e59a74ba4cc7bcd35339a2940848972dbe4e1ce2e3bb0b30535a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fb8e9b8a5d3cbeac9a30703c65fc2be694b5997dbce23b0aba94fd54be1e02ef
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "fb8e9b8a5d3cbeac9a30703c65fc2be694b5997dbce23b0aba94fd54be1e02ef", kill_on_drop: false }`
[INFO] [stderr]    Compiling libm v0.2.1
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking atomic_float v0.1.0
[INFO] [stderr]     Checking text_io v0.1.8
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling crossbeam-utils v0.8.1
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling memoffset v0.6.1
[INFO] [stderr]    Compiling num-bigint v0.3.0
[INFO] [stderr]    Compiling num-iter v0.1.41
[INFO] [stderr]    Compiling num-rational v0.3.0
[INFO] [stderr]     Checking petgraph v0.5.1
[INFO] [stderr]     Checking getrandom v0.2.0
[INFO] [stderr]     Checking rand_core v0.6.0
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking rand v0.8.0
[INFO] [stderr]     Checking crossbeam-epoch v0.9.1
[INFO] [stderr]     Checking crossbeam-queue v0.3.1
[INFO] [stderr]     Checking crossbeam-channel v0.5.0
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]     Checking crossbeam v0.8.0
[INFO] [stderr]     Checking num-complex v0.3.0
[INFO] [stderr]     Checking rand_distr v0.4.0
[INFO] [stderr]     Checking num v0.3.0
[INFO] [stderr]     Checking mdp v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `PuctWithDiricheletNoise`, `StaticPolicyEdgeData`
[INFO] [stdout]  --> src/c4.rs:9:30
[INFO] [stdout]   |
[INFO] [stdout] 9 | use crate::lib::mcts::tree::{PuctWithDiricheletNoise, StaticPolicyEdgeData, UCT, MostVisitedPolicy};
[INFO] [stdout]   |                              ^^^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `num::ToPrimitive`
[INFO] [stdout]  --> src/lib/c4/mod.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use num::ToPrimitive;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Reward`
[INFO] [stdout]    --> src/lib/c4/mod.rs:174:43
[INFO] [stdout]     |
[INFO] [stdout] 174 |     use crate::lib::dp::{DecisionProcess, Reward};
[INFO] [stdout]     |                                           ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::lib::mcts::rollout::SimpleRoll`
[INFO] [stdout]    --> src/lib/c4/mod.rs:175:9
[INFO] [stdout]     |
[INFO] [stdout] 175 |     use crate::lib::mcts::rollout::SimpleRoll;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::sync::atomic::Ordering::SeqCst`
[INFO] [stdout]  --> src/lib/mcts/parallel/tree.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::sync::atomic::Ordering::SeqCst;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::lib::mcts::tree::MostVisitedPolicy`
[INFO] [stdout]  --> src/lib/mcts/mod.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use crate::lib::mcts::tree::MostVisitedPolicy;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `NodePointer`
[INFO] [stdout]    --> src/lib/mcts/mod.rs:263:28
[INFO] [stdout]     |
[INFO] [stdout] 263 |     use crate::lib::mcts::{NodePointer, MCTS};
[INFO] [stdout]     |                            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `PuctWithDiricheletNoise`, `StaticPolicyEdgeData`
[INFO] [stdout]  --> src/c4.rs:9:30
[INFO] [stdout]   |
[INFO] [stdout] 9 | use crate::lib::mcts::tree::{PuctWithDiricheletNoise, StaticPolicyEdgeData, UCT, MostVisitedPolicy};
[INFO] [stdout]   |                              ^^^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `num::ToPrimitive`
[INFO] [stdout]  --> src/lib/c4/mod.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use num::ToPrimitive;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::sync::atomic::Ordering::SeqCst`
[INFO] [stdout]  --> src/lib/mcts/parallel/tree.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::sync::atomic::Ordering::SeqCst;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::lib::mcts::tree::MostVisitedPolicy`
[INFO] [stdout]  --> src/lib/mcts/mod.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use crate::lib::mcts::tree::MostVisitedPolicy;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `num::ToPrimitive`
[INFO] [stdout]  --> src/lib/c4/mod.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use num::ToPrimitive;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::sync::atomic::Ordering::SeqCst`
[INFO] [stdout]  --> src/lib/mcts/parallel/tree.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::sync::atomic::Ordering::SeqCst;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::lib::mcts::tree::MostVisitedPolicy`
[INFO] [stdout]  --> src/lib/mcts/mod.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use crate::lib::mcts::tree::MostVisitedPolicy;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `num::ToPrimitive`
[INFO] [stdout]  --> src/lib/c4/mod.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use num::ToPrimitive;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Reward`
[INFO] [stdout]    --> src/lib/c4/mod.rs:174:43
[INFO] [stdout]     |
[INFO] [stdout] 174 |     use crate::lib::dp::{DecisionProcess, Reward};
[INFO] [stdout]     |                                           ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::lib::mcts::rollout::SimpleRoll`
[INFO] [stdout]    --> src/lib/c4/mod.rs:175:9
[INFO] [stdout]     |
[INFO] [stdout] 175 |     use crate::lib::mcts::rollout::SimpleRoll;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::sync::atomic::Ordering::SeqCst`
[INFO] [stdout]  --> src/lib/mcts/parallel/tree.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::sync::atomic::Ordering::SeqCst;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::lib::mcts::tree::MostVisitedPolicy`
[INFO] [stdout]  --> src/lib/mcts/mod.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use crate::lib::mcts::tree::MostVisitedPolicy;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `NodePointer`
[INFO] [stdout]    --> src/lib/mcts/mod.rs:263:28
[INFO] [stdout]     |
[INFO] [stdout] 263 |     use crate::lib::mcts::{NodePointer, MCTS};
[INFO] [stdout]     |                            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `root`
[INFO] [stdout]    --> src/lib/mcts/mod.rs:332:13
[INFO] [stdout]     |
[INFO] [stdout] 332 |         let mut root: Pointer<f32, C4Move, ()> = Pointer::new_with_data();
[INFO] [stdout]     |             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_root`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib/c6.rs:280:13
[INFO] [stdout]     |
[INFO] [stdout] 280 |         let mut p: Pointer<f32, Move, ()> = Pointer::new_with_data();
[INFO] [stdout]     |             ----^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib/mcts/mod.rs:332:13
[INFO] [stdout]     |
[INFO] [stdout] 332 |         let mut root: Pointer<f32, C4Move, ()> = Pointer::new_with_data();
[INFO] [stdout]     |             ----^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib/mcts/parallel/tree.rs:313:13
[INFO] [stdout]     |
[INFO] [stdout] 313 |         let mut p: Pointer<i32, ()> = Pointer::new_with_data();
[INFO] [stdout]     |             ----^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/c6.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let mut p: Pointer<f32, Move, ()> = Pointer::new_with_data();
[INFO] [stdout]    |         ----^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/lib/mcts/parallel/tree.rs:82:13
[INFO] [stdout]    |
[INFO] [stdout] 82 |             unsafe {
[INFO] [stdout]    |             ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `graph2`
[INFO] [stdout]   --> src/lib/dp/mod.rs:89:8
[INFO] [stdout]    |
[INFO] [stdout] 89 |     fn graph2() -> Graph<i32, (i32, i32)> {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `graph1`
[INFO] [stdout]   --> src/lib/dp/mod.rs:99:8
[INFO] [stdout]    |
[INFO] [stdout] 99 |     fn graph1() -> Graph<i32, (i32, i32)> {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `mdp1`
[INFO] [stdout]    --> src/lib/dp/mod.rs:110:12
[INFO] [stdout]     |
[INFO] [stdout] 110 |     pub fn mdp1() -> GraphMdp<i32, i32> {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `mdp2`
[INFO] [stdout]    --> src/lib/dp/mod.rs:116:12
[INFO] [stdout]     |
[INFO] [stdout] 116 |     pub fn mdp2() -> GraphMdp<i32, i32> {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `children_iter_mut`
[INFO] [stdout]    --> src/lib/mcts/parallel/tree.rs:116:8
[INFO] [stdout]     |
[INFO] [stdout] 116 |     fn children_iter_mut(&self) -> impl Iterator<Item = &mut Edge<A, I>> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/lib/mcts/tree/tree_policies.rs:86:19
[INFO] [stdout]    |
[INFO] [stdout] 86 |     pub(crate) fn new(
[INFO] [stdout]    |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `NodeData`
[INFO] [stdout]   --> src/lib/mcts/graph/mod.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | struct NodeData<A, I> {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Edge`
[INFO] [stdout]   --> src/lib/mcts/graph/mod.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | struct Edge<A, I> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Pointer`
[INFO] [stdout]   --> src/lib/mcts/graph/mod.rs:34:12
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub struct Pointer<A, I> {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 21 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `root`
[INFO] [stdout]    --> src/lib/mcts/mod.rs:332:13
[INFO] [stdout]     |
[INFO] [stdout] 332 |         let mut root: Pointer<f32, C4Move, ()> = Pointer::new_with_data();
[INFO] [stdout]     |             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_root`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/c6.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let mut p: Pointer<f32, Move, ()> = Pointer::new_with_data();
[INFO] [stdout]    |         ----^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib/c6.rs:280:13
[INFO] [stdout]     |
[INFO] [stdout] 280 |         let mut p: Pointer<f32, Move, ()> = Pointer::new_with_data();
[INFO] [stdout]     |             ----^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib/mcts/mod.rs:332:13
[INFO] [stdout]     |
[INFO] [stdout] 332 |         let mut root: Pointer<f32, C4Move, ()> = Pointer::new_with_data();
[INFO] [stdout]     |             ----^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib/mcts/parallel/tree.rs:313:13
[INFO] [stdout]     |
[INFO] [stdout] 313 |         let mut p: Pointer<i32, ()> = Pointer::new_with_data();
[INFO] [stdout]     |             ----^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/lib/mcts/parallel/tree.rs:82:13
[INFO] [stdout]    |
[INFO] [stdout] 82 |             unsafe {
[INFO] [stdout]    |             ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `children_iter_mut`
[INFO] [stdout]    --> src/lib/mcts/parallel/tree.rs:116:8
[INFO] [stdout]     |
[INFO] [stdout] 116 |     fn children_iter_mut(&self) -> impl Iterator<Item = &mut Edge<A, I>> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new_with_data`
[INFO] [stdout]    --> src/lib/mcts/parallel/tree.rs:138:19
[INFO] [stdout]     |
[INFO] [stdout] 138 |     pub(crate) fn new_with_data() -> Self {
[INFO] [stdout]     |                   ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `MCTS`
[INFO] [stdout]   --> src/lib/mcts/parallel/mod.rs:13:19
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub(crate) struct MCTS<M, R, T> {
[INFO] [stdout]    |                   ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/lib/mcts/parallel/mod.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub fn new(m: M, roll: Roll, filter_decisive_moves: bool, tree_policy: T) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `mdp`
[INFO] [stdout]   --> src/lib/mcts/parallel/mod.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout] 36 |     pub fn mdp(&self) -> &M {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parallel_iterate`
[INFO] [stdout]   --> src/lib/mcts/parallel/mod.rs:40:19
[INFO] [stdout]    |
[INFO] [stdout] 40 |     pub(crate) fn parallel_iterate<N, R>(
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/lib/mcts/tree/tree_policies.rs:86:19
[INFO] [stdout]    |
[INFO] [stdout] 86 |     pub(crate) fn new(
[INFO] [stdout]    |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `NodeData`
[INFO] [stdout]   --> src/lib/mcts/graph/mod.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | struct NodeData<A, I> {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Edge`
[INFO] [stdout]   --> src/lib/mcts/graph/mod.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | struct Edge<A, I> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Pointer`
[INFO] [stdout]   --> src/lib/mcts/graph/mod.rs:34:12
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub struct Pointer<A, I> {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/lib/mcts/parallel/tree.rs:82:13
[INFO] [stdout]    |
[INFO] [stdout] 82 |             unsafe {
[INFO] [stdout]    |             ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `children_iter_mut`
[INFO] [stdout]    --> src/lib/mcts/parallel/tree.rs:116:8
[INFO] [stdout]     |
[INFO] [stdout] 116 |     fn children_iter_mut(&self) -> impl Iterator<Item = &mut Edge<A, I>> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/lib/mcts/tree/tree_policies.rs:86:19
[INFO] [stdout]    |
[INFO] [stdout] 86 |     pub(crate) fn new(
[INFO] [stdout]    |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new_with_data`
[INFO] [stdout]    --> src/lib/mcts/tree/mod.rs:114:12
[INFO] [stdout]     |
[INFO] [stdout] 114 |     pub fn new_with_data() -> Self {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `NodeData`
[INFO] [stdout]   --> src/lib/mcts/graph/mod.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | struct NodeData<A, I> {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Edge`
[INFO] [stdout]   --> src/lib/mcts/graph/mod.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | struct Edge<A, I> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Pointer`
[INFO] [stdout]   --> src/lib/mcts/graph/mod.rs:34:12
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub struct Pointer<A, I> {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `MCTS`
[INFO] [stdout]   --> src/lib/mcts/mod.rs:62:12
[INFO] [stdout]    |
[INFO] [stdout] 62 | pub struct MCTS<M, R, T> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/lib/mcts/mod.rs:220:12
[INFO] [stdout]     |
[INFO] [stdout] 220 |     pub fn new(m: M, roll: Roll, filter_decisive_moves: bool, tree_policy: T) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `mdp`
[INFO] [stdout]    --> src/lib/mcts/mod.rs:230:12
[INFO] [stdout]     |
[INFO] [stdout] 230 |     pub fn mdp(&self) -> &M {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `iterate`
[INFO] [stdout]    --> src/lib/mcts/mod.rs:234:12
[INFO] [stdout]     |
[INFO] [stdout] 234 |     pub fn iterate<N, R>(&self, root: &N, s: &mut M::StatePointer, count: usize)
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/lib/mcts/parallel/tree.rs:82:13
[INFO] [stdout]    |
[INFO] [stdout] 82 |             unsafe {
[INFO] [stdout]    |             ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `graph2`
[INFO] [stdout]   --> src/lib/dp/mod.rs:89:8
[INFO] [stdout]    |
[INFO] [stdout] 89 |     fn graph2() -> Graph<i32, (i32, i32)> {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `graph1`
[INFO] [stdout]   --> src/lib/dp/mod.rs:99:8
[INFO] [stdout]    |
[INFO] [stdout] 99 |     fn graph1() -> Graph<i32, (i32, i32)> {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `mdp1`
[INFO] [stdout]    --> src/lib/dp/mod.rs:110:12
[INFO] [stdout]     |
[INFO] [stdout] 110 |     pub fn mdp1() -> GraphMdp<i32, i32> {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `mdp2`
[INFO] [stdout]    --> src/lib/dp/mod.rs:116:12
[INFO] [stdout]     |
[INFO] [stdout] 116 |     pub fn mdp2() -> GraphMdp<i32, i32> {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `children_iter_mut`
[INFO] [stdout]    --> src/lib/mcts/parallel/tree.rs:116:8
[INFO] [stdout]     |
[INFO] [stdout] 116 |     fn children_iter_mut(&self) -> impl Iterator<Item = &mut Edge<A, I>> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `MCTS`
[INFO] [stdout]   --> src/lib/mcts/parallel/mod.rs:13:19
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub(crate) struct MCTS<M, R, T> {
[INFO] [stdout]    |                   ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/lib/mcts/parallel/mod.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub fn new(m: M, roll: Roll, filter_decisive_moves: bool, tree_policy: T) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `mdp`
[INFO] [stdout]   --> src/lib/mcts/parallel/mod.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout] 36 |     pub fn mdp(&self) -> &M {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parallel_iterate`
[INFO] [stdout]   --> src/lib/mcts/parallel/mod.rs:40:19
[INFO] [stdout]    |
[INFO] [stdout] 40 |     pub(crate) fn parallel_iterate<N, R>(
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/lib/mcts/tree/tree_policies.rs:86:19
[INFO] [stdout]    |
[INFO] [stdout] 86 |     pub(crate) fn new(
[INFO] [stdout]    |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `NodeData`
[INFO] [stdout]   --> src/lib/mcts/graph/mod.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | struct NodeData<A, I> {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Edge`
[INFO] [stdout]   --> src/lib/mcts/graph/mod.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | struct Edge<A, I> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Pointer`
[INFO] [stdout]   --> src/lib/mcts/graph/mod.rs:34:12
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub struct Pointer<A, I> {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 25 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.81s
[INFO] running `Command { std: "docker" "inspect" "fb8e9b8a5d3cbeac9a30703c65fc2be694b5997dbce23b0aba94fd54be1e02ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb8e9b8a5d3cbeac9a30703c65fc2be694b5997dbce23b0aba94fd54be1e02ef", kill_on_drop: false }`
[INFO] [stdout] fb8e9b8a5d3cbeac9a30703c65fc2be694b5997dbce23b0aba94fd54be1e02ef