[INFO] cloning repository https://github.com/Emile-Aquila/Bandit
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Emile-Aquila/Bandit" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEmile-Aquila%2FBandit", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEmile-Aquila%2FBandit'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3837947bda9f1a4fc276fe9dbb74dd03979b536e
[INFO] checking Emile-Aquila/Bandit against 1.95.0 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEmile-Aquila%2FBandit" "/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/Emile-Aquila/Bandit
[INFO] finished tweaking git repo https://github.com/Emile-Aquila/Bandit
[INFO] tweaked toml for git repo https://github.com/Emile-Aquila/Bandit written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Emile-Aquila/Bandit on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Emile-Aquila/Bandit 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" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
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[INFO] [stderr]     Checking Bandit v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::algorithms::epsilon_greedy::epsilon_greedy_policy`
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::algorithms::epsilon_greedy::epsilon_greedy_policy;
[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 import: `crate::algorithms::thompson_sampling::ts_policy`
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::algorithms::thompson_sampling::ts_policy;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::algorithms::ucb::ucb_policy`
[INFO] [stdout]  --> src/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::algorithms::ucb::ucb_policy;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `plot_data`
[INFO] [stdout]  --> src/main.rs:9:54
[INFO] [stdout]   |
[INFO] [stdout] 9 | use crate::algorithms::utils::{build_reward_history, plot_data, RewardHistory, d_gaussian, d_bernoulli, max};
[INFO] [stdout]   |                                                      ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `AdversarialBanditMachine`
[INFO] [stdout]   --> src/main.rs:10:21
[INFO] [stdout]    |
[INFO] [stdout] 10 | use crate::bandit::{AdversarialBanditMachine, BanditMachine, build_adversarial_bandit_machine};
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `argmax`, `max`, and `min`
[INFO] [stdout]  --> src/bandit.rs:2:32
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::algorithms::utils::{argmax, argmin, max, min, normalize, softmax};
[INFO] [stdout]   |                                ^^^^^^          ^^^  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops::Add`
[INFO] [stdout]  --> src/algorithms/utils.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::ops::Add;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `argmax` and `mean`
[INFO] [stdout]  --> src/algorithms/regrets.rs:1:32
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::algorithms::utils::{argmax, mean, RewardHistory};
[INFO] [stdout]   |                                ^^^^^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `mean`
[INFO] [stdout]  --> src/algorithms/successive_elimination_policy.rs:1:45
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::algorithms::utils::{argmax, max, mean, RewardHistory};
[INFO] [stdout]   |                                             ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rand::Rng`
[INFO] [stdout]  --> src/algorithms/successive_elimination_policy.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use rand::Rng;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `max` and `mean`
[INFO] [stdout]  --> src/algorithms/lucb.rs:1:40
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::algorithms::utils::{argmax, max, mean, RewardHistory};
[INFO] [stdout]   |                                        ^^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rand::Rng`
[INFO] [stdout]  --> src/algorithms/lucb.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use rand::Rng;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::algorithms::utils`
[INFO] [stdout]  --> src/algorithms/exp3.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::algorithms::utils;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::algorithms::epsilon_greedy::epsilon_greedy_policy`
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::algorithms::epsilon_greedy::epsilon_greedy_policy;
[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 import: `crate::algorithms::thompson_sampling::ts_policy`
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::algorithms::thompson_sampling::ts_policy;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::algorithms::ucb::ucb_policy`
[INFO] [stdout]  --> src/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::algorithms::ucb::ucb_policy;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `plot_data`
[INFO] [stdout]  --> src/main.rs:9:54
[INFO] [stdout]   |
[INFO] [stdout] 9 | use crate::algorithms::utils::{build_reward_history, plot_data, RewardHistory, d_gaussian, d_bernoulli, max};
[INFO] [stdout]   |                                                      ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `AdversarialBanditMachine`
[INFO] [stdout]   --> src/main.rs:10:21
[INFO] [stdout]    |
[INFO] [stdout] 10 | use crate::bandit::{AdversarialBanditMachine, BanditMachine, build_adversarial_bandit_machine};
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `argmax`, `max`, and `min`
[INFO] [stdout]  --> src/bandit.rs:2:32
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::algorithms::utils::{argmax, argmin, max, min, normalize, softmax};
[INFO] [stdout]   |                                ^^^^^^          ^^^  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops::Add`
[INFO] [stdout]  --> src/algorithms/utils.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::ops::Add;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `argmax` and `mean`
[INFO] [stdout]  --> src/algorithms/regrets.rs:1:32
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::algorithms::utils::{argmax, mean, RewardHistory};
[INFO] [stdout]   |                                ^^^^^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `mean`
[INFO] [stdout]  --> src/algorithms/successive_elimination_policy.rs:1:45
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::algorithms::utils::{argmax, max, mean, RewardHistory};
[INFO] [stdout]   |                                             ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rand::Rng`
[INFO] [stdout]  --> src/algorithms/successive_elimination_policy.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use rand::Rng;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `max` and `mean`
[INFO] [stdout]  --> src/algorithms/lucb.rs:1:40
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::algorithms::utils::{argmax, max, mean, RewardHistory};
[INFO] [stdout]   |                                        ^^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rand::Rng`
[INFO] [stdout]  --> src/algorithms/lucb.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use rand::Rng;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::algorithms::utils`
[INFO] [stdout]  --> src/algorithms/exp3.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::algorithms::utils;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::iter::Sum`
[INFO] [stdout]  --> src/algorithms/utils.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::iter::Sum;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/algorithms/utils.rs:72:9
[INFO] [stdout]    |
[INFO] [stdout] 72 |     let mut tmp_vec: Vec<f64> = vec.clone().iter().map(|&x| x.exp()).collect::<Vec<f64>>();
[INFO] [stdout]    |         ----^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/algorithms/successive_elimination_policy.rs:30:13
[INFO] [stdout]    |
[INFO] [stdout] 30 |         let mut sub_vec = ucb_scores[..optimal_arm].iter().cloned()
[INFO] [stdout]    |             ----^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `n` is assigned to, but never used
[INFO] [stdout]   --> src/algorithms/successive_elimination_policy.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let mut n: f64 = 1.0;
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_n` instead
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `n` is never read
[INFO] [stdout]   --> src/algorithms/successive_elimination_policy.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 38 |         n += 1.0;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bernoulli_model`
[INFO] [stdout]   --> src/main.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 34 |     let bernoulli_model = Box::new(d_bernoulli);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_bernoulli_model`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:105:9
[INFO] [stdout]     |
[INFO] [stdout] 105 |     let mut exp3_agent = build_exp3agent(bandit.arm_size(), agent_gamma, eta);
[INFO] [stdout]     |         ----^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `exp3_agent`
[INFO] [stdout]    --> src/main.rs:105:9
[INFO] [stdout]     |
[INFO] [stdout] 105 |     let mut exp3_agent = build_exp3agent(bandit.arm_size(), agent_gamma, eta);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_exp3_agent`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `prob_bandit` is never used
[INFO] [stdout]   --> src/main.rs:15:4
[INFO] [stdout]    |
[INFO] [stdout] 15 | fn prob_bandit(){
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `beta` is never used
[INFO] [stdout]   --> src/main.rs:56:4
[INFO] [stdout]    |
[INFO] [stdout] 56 | fn beta(n: f64, delta: f64) -> f64{  // for best arm identification
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `best_arm_identification` is never used
[INFO] [stdout]   --> src/main.rs:60:4
[INFO] [stdout]    |
[INFO] [stdout] 60 | fn best_arm_identification(){
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `ProbabilisticBanditArm` is never used
[INFO] [stdout]   --> src/bandit.rs:10:11
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub trait ProbabilisticBanditArm {
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ProbabilisticBanditMachine` is never constructed
[INFO] [stdout]   --> src/bandit.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub struct ProbabilisticBanditMachine {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `GaussianReward` is never constructed
[INFO] [stdout]   --> src/bandit.rs:31:12
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub struct GaussianReward{
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `build_gaussian_reward` is never used
[INFO] [stdout]   --> src/bandit.rs:40:8
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub fn build_gaussian_reward(sigma: f64) -> GaussianReward{
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BernoulliReward` is never constructed
[INFO] [stdout]   --> src/bandit.rs:47:12
[INFO] [stdout]    |
[INFO] [stdout] 47 | pub struct BernoulliReward{}
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `build_bernoulli_reward` is never used
[INFO] [stdout]   --> src/bandit.rs:55:8
[INFO] [stdout]    |
[INFO] [stdout] 55 | pub fn build_bernoulli_reward() -> BernoulliReward{
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `mean` is never used
[INFO] [stdout]  --> src/algorithms/utils.rs:6:15
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub(crate) fn mean(vec: &Vec<f64>) -> f64{
[INFO] [stdout]   |               ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `argmax` is never used
[INFO] [stdout]   --> src/algorithms/utils.rs:14:15
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub(crate) fn argmax<T: Clone + PartialOrd>(vec: &Vec<T>) -> i32 {
[INFO] [stdout]    |               ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `max` is never used
[INFO] [stdout]   --> src/algorithms/utils.rs:46:8
[INFO] [stdout]    |
[INFO] [stdout] 46 | pub fn max<T:Clone + PartialOrd>(vec: &Vec<T>) -> T{
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `min` is never used
[INFO] [stdout]   --> src/algorithms/utils.rs:56:8
[INFO] [stdout]    |
[INFO] [stdout] 56 | pub fn min<T:Clone + PartialOrd>(vec: &Vec<T>) -> T{
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `RewardHistory` is never constructed
[INFO] [stdout]   --> src/algorithms/utils.rs:77:12
[INFO] [stdout]    |
[INFO] [stdout] 77 | pub struct RewardHistory {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `observe` is never used
[INFO] [stdout]   --> src/algorithms/utils.rs:84:12
[INFO] [stdout]    |
[INFO] [stdout] 83 | impl RewardHistory{
[INFO] [stdout]    | ------------------ method in this implementation
[INFO] [stdout] 84 |     pub fn observe(&mut self, arm_id: u32, reward: f64){
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `build_reward_history` is never used
[INFO] [stdout]   --> src/algorithms/utils.rs:91:8
[INFO] [stdout]    |
[INFO] [stdout] 91 | pub fn build_reward_history(arm_size: u32) -> RewardHistory{
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `d_bernoulli` is never used
[INFO] [stdout]    --> src/algorithms/utils.rs:100:8
[INFO] [stdout]     |
[INFO] [stdout] 100 | pub fn d_bernoulli(mu1: f64, mu2: f64) -> f64 {  // KL Divergence of Bernoulli distribution
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `d_gaussian` is never used
[INFO] [stdout]    --> src/algorithms/utils.rs:104:8
[INFO] [stdout]     |
[INFO] [stdout] 104 | pub fn d_gaussian(mu1: f64, sigma1: f64, mu2: f64, sigma2: f64) -> f64 { // KL Divergence of Gaussian distribution
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `plot_data` is never used
[INFO] [stdout]    --> src/algorithms/utils.rs:109:8
[INFO] [stdout]     |
[INFO] [stdout] 109 | pub fn plot_data(x_data: &Vec<f64>, y_data: &Vec<f64>, file_name: &str, caption: &str){
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `expected_regret` is never used
[INFO] [stdout]  --> src/algorithms/regrets.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn expected_regret(rew_history: &RewardHistory, optimal_mu: f64) -> f64 {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `greedy_policy` is never used
[INFO] [stdout]  --> src/algorithms/epsilon_greedy.rs:4:4
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn greedy_policy(rew_history: &RewardHistory) -> u32{
[INFO] [stdout]   |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `epsilon_greedy_policy` is never used
[INFO] [stdout]   --> src/algorithms/epsilon_greedy.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub fn epsilon_greedy_policy(rew_history: &RewardHistory, eps: f64) -> u32{
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `ucb_policy` is never used
[INFO] [stdout]  --> src/algorithms/ucb.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn ucb_policy(rew_history: &RewardHistory, t: u32) -> u32{
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `gauss_posterior` is never used
[INFO] [stdout]  --> src/algorithms/thompson_sampling.rs:4:4
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn gauss_posterior(rew_sigma: f64, prior_mu: f64, prior_sigma: f64, samples: &Vec<f64>) -> (f64, f64){
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `ts_policy` is never used
[INFO] [stdout]   --> src/algorithms/thompson_sampling.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub fn ts_policy(rew_history: &RewardHistory, rew_sigma: f64, prior_mu: f64, prior_sigma: f64) -> u32{
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `successive_elimination_policy` is never used
[INFO] [stdout]  --> src/algorithms/successive_elimination_policy.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn successive_elimination_policy(bandit: &ProbabilisticBanditMachine, rew_history: &mut RewardHistory, eps: f64,
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `ucb_score` is never used
[INFO] [stdout]   --> src/algorithms/successive_elimination_policy.rs:43:4
[INFO] [stdout]    |
[INFO] [stdout] 43 | fn ucb_score(mean: f64, num: f64, delta: f64, beta: fn(f64, f64)->f64) -> f64{
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `lcb_score` is never used
[INFO] [stdout]   --> src/algorithms/successive_elimination_policy.rs:47:4
[INFO] [stdout]    |
[INFO] [stdout] 47 | fn lcb_score(mean: f64, num: f64, delta: f64, beta: fn(f64, f64)->f64) -> f64{
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `lucb_policy` is never used
[INFO] [stdout]  --> src/algorithms/lucb.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn lucb_policy(bandit: &ProbabilisticBanditMachine, rew_history: &mut RewardHistory, eps: f64,
[INFO] [stdout]   |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `ucb_score` is never used
[INFO] [stdout]   --> src/algorithms/lucb.rs:38:4
[INFO] [stdout]    |
[INFO] [stdout] 38 | fn ucb_score(mean: f64, num: f64, delta: f64, beta: fn(f64, f64) -> f64) -> f64 {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `lcb_score` is never used
[INFO] [stdout]   --> src/algorithms/lucb.rs:42:4
[INFO] [stdout]    |
[INFO] [stdout] 42 | fn lcb_score(mean: f64, num: f64, delta: f64, beta: fn(f64, f64) -> f64) -> f64 {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `arm_size`, `gamma`, `eta`, `weights`, `probs`, and `rng` are never read
[INFO] [stdout]   --> src/algorithms/exp3.rs:7:5
[INFO] [stdout]    |
[INFO] [stdout]  6 | pub struct Exp3Agent{
[INFO] [stdout]    |            --------- fields in this struct
[INFO] [stdout]  7 |     arm_size: u32,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]  8 |     gamma: f64,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]  9 |     eta: f64,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 10 |     weights: Vec<f64>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 11 |     probs: Vec<f64>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 12 |     rng: ThreadRng
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `select_arm` and `observe` are never used
[INFO] [stdout]   --> src/algorithms/exp3.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl Exp3Agent {
[INFO] [stdout]    | -------------- methods in this implementation
[INFO] [stdout] 16 |     pub fn select_arm(&mut self) -> u32 {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 26 |     pub fn observe(&mut self, selected_arm: u32, reward: f64){
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DMEDAgent` is never constructed
[INFO] [stdout]  --> src/algorithms/DMED.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct DMEDAgent {
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `policy` is never used
[INFO] [stdout]   --> src/algorithms/DMED.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout]  9 | impl DMEDAgent {
[INFO] [stdout]    | -------------- method in this implementation
[INFO] [stdout] 10 |     pub fn policy(&mut self, t: f64, rew_history: &RewardHistory) -> u32{
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `build_DMEDAgent` is never used
[INFO] [stdout]   --> src/algorithms/DMED.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub fn build_DMEDAgent(arm_size: u32, d_model: Box<dyn Fn(f64, f64) -> f64>) -> DMEDAgent {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `T` should have a snake case name
[INFO] [stdout]   --> src/main.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 17 |     let T: u32 = 100;
[INFO] [stdout]    |         ^ help: convert the identifier to snake case: `t`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::iter::Sum`
[INFO] [stdout]  --> src/algorithms/utils.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::iter::Sum;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `DMED_agent` should have a snake case name
[INFO] [stdout]   --> src/main.rs:35:13
[INFO] [stdout]    |
[INFO] [stdout] 35 |     let mut DMED_agent = DMED::build_DMEDAgent(4, gaussian_model);
[INFO] [stdout]    |             ^^^^^^^^^^ help: convert the identifier to snake case: `dmed_agent`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `T` should have a snake case name
[INFO] [stdout]   --> src/main.rs:98:9
[INFO] [stdout]    |
[INFO] [stdout] 98 |     let T: u32 = 200;
[INFO] [stdout]    |         ^ help: convert the identifier to snake case: `t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `DMED` should have a snake case name
[INFO] [stdout]  --> src/algorithms.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub mod DMED;
[INFO] [stdout]   |         ^^^^ help: convert the identifier to snake case: `dmed`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `build_DMEDAgent` should have a snake case name
[INFO] [stdout]   --> src/algorithms/DMED.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub fn build_DMEDAgent(arm_size: u32, d_model: Box<dyn Fn(f64, f64) -> f64>) -> DMEDAgent {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `build_dmedagent`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/algorithms/utils.rs:72:9
[INFO] [stdout]    |
[INFO] [stdout] 72 |     let mut tmp_vec: Vec<f64> = vec.clone().iter().map(|&x| x.exp()).collect::<Vec<f64>>();
[INFO] [stdout]    |         ----^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/algorithms/successive_elimination_policy.rs:30:13
[INFO] [stdout]    |
[INFO] [stdout] 30 |         let mut sub_vec = ucb_scores[..optimal_arm].iter().cloned()
[INFO] [stdout]    |             ----^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `n` is assigned to, but never used
[INFO] [stdout]   --> src/algorithms/successive_elimination_policy.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let mut n: f64 = 1.0;
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_n` instead
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `n` is never read
[INFO] [stdout]   --> src/algorithms/successive_elimination_policy.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 38 |         n += 1.0;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bernoulli_model`
[INFO] [stdout]   --> src/main.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 34 |     let bernoulli_model = Box::new(d_bernoulli);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_bernoulli_model`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:105:9
[INFO] [stdout]     |
[INFO] [stdout] 105 |     let mut exp3_agent = build_exp3agent(bandit.arm_size(), agent_gamma, eta);
[INFO] [stdout]     |         ----^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `exp3_agent`
[INFO] [stdout]    --> src/main.rs:105:9
[INFO] [stdout]     |
[INFO] [stdout] 105 |     let mut exp3_agent = build_exp3agent(bandit.arm_size(), agent_gamma, eta);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_exp3_agent`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `prob_bandit` is never used
[INFO] [stdout]   --> src/main.rs:15:4
[INFO] [stdout]    |
[INFO] [stdout] 15 | fn prob_bandit(){
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `beta` is never used
[INFO] [stdout]   --> src/main.rs:56:4
[INFO] [stdout]    |
[INFO] [stdout] 56 | fn beta(n: f64, delta: f64) -> f64{  // for best arm identification
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `best_arm_identification` is never used
[INFO] [stdout]   --> src/main.rs:60:4
[INFO] [stdout]    |
[INFO] [stdout] 60 | fn best_arm_identification(){
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `ProbabilisticBanditArm` is never used
[INFO] [stdout]   --> src/bandit.rs:10:11
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub trait ProbabilisticBanditArm {
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ProbabilisticBanditMachine` is never constructed
[INFO] [stdout]   --> src/bandit.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub struct ProbabilisticBanditMachine {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `GaussianReward` is never constructed
[INFO] [stdout]   --> src/bandit.rs:31:12
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub struct GaussianReward{
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `build_gaussian_reward` is never used
[INFO] [stdout]   --> src/bandit.rs:40:8
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub fn build_gaussian_reward(sigma: f64) -> GaussianReward{
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BernoulliReward` is never constructed
[INFO] [stdout]   --> src/bandit.rs:47:12
[INFO] [stdout]    |
[INFO] [stdout] 47 | pub struct BernoulliReward{}
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `build_bernoulli_reward` is never used
[INFO] [stdout]   --> src/bandit.rs:55:8
[INFO] [stdout]    |
[INFO] [stdout] 55 | pub fn build_bernoulli_reward() -> BernoulliReward{
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `mean` is never used
[INFO] [stdout]  --> src/algorithms/utils.rs:6:15
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub(crate) fn mean(vec: &Vec<f64>) -> f64{
[INFO] [stdout]   |               ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `argmax` is never used
[INFO] [stdout]   --> src/algorithms/utils.rs:14:15
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub(crate) fn argmax<T: Clone + PartialOrd>(vec: &Vec<T>) -> i32 {
[INFO] [stdout]    |               ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `max` is never used
[INFO] [stdout]   --> src/algorithms/utils.rs:46:8
[INFO] [stdout]    |
[INFO] [stdout] 46 | pub fn max<T:Clone + PartialOrd>(vec: &Vec<T>) -> T{
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `min` is never used
[INFO] [stdout]   --> src/algorithms/utils.rs:56:8
[INFO] [stdout]    |
[INFO] [stdout] 56 | pub fn min<T:Clone + PartialOrd>(vec: &Vec<T>) -> T{
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `RewardHistory` is never constructed
[INFO] [stdout]   --> src/algorithms/utils.rs:77:12
[INFO] [stdout]    |
[INFO] [stdout] 77 | pub struct RewardHistory {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `observe` is never used
[INFO] [stdout]   --> src/algorithms/utils.rs:84:12
[INFO] [stdout]    |
[INFO] [stdout] 83 | impl RewardHistory{
[INFO] [stdout]    | ------------------ method in this implementation
[INFO] [stdout] 84 |     pub fn observe(&mut self, arm_id: u32, reward: f64){
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `build_reward_history` is never used
[INFO] [stdout]   --> src/algorithms/utils.rs:91:8
[INFO] [stdout]    |
[INFO] [stdout] 91 | pub fn build_reward_history(arm_size: u32) -> RewardHistory{
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `d_bernoulli` is never used
[INFO] [stdout]    --> src/algorithms/utils.rs:100:8
[INFO] [stdout]     |
[INFO] [stdout] 100 | pub fn d_bernoulli(mu1: f64, mu2: f64) -> f64 {  // KL Divergence of Bernoulli distribution
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `d_gaussian` is never used
[INFO] [stdout]    --> src/algorithms/utils.rs:104:8
[INFO] [stdout]     |
[INFO] [stdout] 104 | pub fn d_gaussian(mu1: f64, sigma1: f64, mu2: f64, sigma2: f64) -> f64 { // KL Divergence of Gaussian distribution
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `plot_data` is never used
[INFO] [stdout]    --> src/algorithms/utils.rs:109:8
[INFO] [stdout]     |
[INFO] [stdout] 109 | pub fn plot_data(x_data: &Vec<f64>, y_data: &Vec<f64>, file_name: &str, caption: &str){
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `expected_regret` is never used
[INFO] [stdout]  --> src/algorithms/regrets.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn expected_regret(rew_history: &RewardHistory, optimal_mu: f64) -> f64 {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `greedy_policy` is never used
[INFO] [stdout]  --> src/algorithms/epsilon_greedy.rs:4:4
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn greedy_policy(rew_history: &RewardHistory) -> u32{
[INFO] [stdout]   |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `epsilon_greedy_policy` is never used
[INFO] [stdout]   --> src/algorithms/epsilon_greedy.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub fn epsilon_greedy_policy(rew_history: &RewardHistory, eps: f64) -> u32{
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `ucb_policy` is never used
[INFO] [stdout]  --> src/algorithms/ucb.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn ucb_policy(rew_history: &RewardHistory, t: u32) -> u32{
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `gauss_posterior` is never used
[INFO] [stdout]  --> src/algorithms/thompson_sampling.rs:4:4
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn gauss_posterior(rew_sigma: f64, prior_mu: f64, prior_sigma: f64, samples: &Vec<f64>) -> (f64, f64){
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `ts_policy` is never used
[INFO] [stdout]   --> src/algorithms/thompson_sampling.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub fn ts_policy(rew_history: &RewardHistory, rew_sigma: f64, prior_mu: f64, prior_sigma: f64) -> u32{
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `successive_elimination_policy` is never used
[INFO] [stdout]  --> src/algorithms/successive_elimination_policy.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn successive_elimination_policy(bandit: &ProbabilisticBanditMachine, rew_history: &mut RewardHistory, eps: f64,
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `ucb_score` is never used
[INFO] [stdout]   --> src/algorithms/successive_elimination_policy.rs:43:4
[INFO] [stdout]    |
[INFO] [stdout] 43 | fn ucb_score(mean: f64, num: f64, delta: f64, beta: fn(f64, f64)->f64) -> f64{
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `lcb_score` is never used
[INFO] [stdout]   --> src/algorithms/successive_elimination_policy.rs:47:4
[INFO] [stdout]    |
[INFO] [stdout] 47 | fn lcb_score(mean: f64, num: f64, delta: f64, beta: fn(f64, f64)->f64) -> f64{
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `lucb_policy` is never used
[INFO] [stdout]  --> src/algorithms/lucb.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn lucb_policy(bandit: &ProbabilisticBanditMachine, rew_history: &mut RewardHistory, eps: f64,
[INFO] [stdout]   |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `ucb_score` is never used
[INFO] [stdout]   --> src/algorithms/lucb.rs:38:4
[INFO] [stdout]    |
[INFO] [stdout] 38 | fn ucb_score(mean: f64, num: f64, delta: f64, beta: fn(f64, f64) -> f64) -> f64 {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `lcb_score` is never used
[INFO] [stdout]   --> src/algorithms/lucb.rs:42:4
[INFO] [stdout]    |
[INFO] [stdout] 42 | fn lcb_score(mean: f64, num: f64, delta: f64, beta: fn(f64, f64) -> f64) -> f64 {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `arm_size`, `gamma`, `eta`, `weights`, `probs`, and `rng` are never read
[INFO] [stdout]   --> src/algorithms/exp3.rs:7:5
[INFO] [stdout]    |
[INFO] [stdout]  6 | pub struct Exp3Agent{
[INFO] [stdout]    |            --------- fields in this struct
[INFO] [stdout]  7 |     arm_size: u32,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]  8 |     gamma: f64,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]  9 |     eta: f64,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 10 |     weights: Vec<f64>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 11 |     probs: Vec<f64>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 12 |     rng: ThreadRng
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `select_arm` and `observe` are never used
[INFO] [stdout]   --> src/algorithms/exp3.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl Exp3Agent {
[INFO] [stdout]    | -------------- methods in this implementation
[INFO] [stdout] 16 |     pub fn select_arm(&mut self) -> u32 {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 26 |     pub fn observe(&mut self, selected_arm: u32, reward: f64){
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DMEDAgent` is never constructed
[INFO] [stdout]  --> src/algorithms/DMED.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct DMEDAgent {
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `policy` is never used
[INFO] [stdout]   --> src/algorithms/DMED.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout]  9 | impl DMEDAgent {
[INFO] [stdout]    | -------------- method in this implementation
[INFO] [stdout] 10 |     pub fn policy(&mut self, t: f64, rew_history: &RewardHistory) -> u32{
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `build_DMEDAgent` is never used
[INFO] [stdout]   --> src/algorithms/DMED.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub fn build_DMEDAgent(arm_size: u32, d_model: Box<dyn Fn(f64, f64) -> f64>) -> DMEDAgent {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `T` should have a snake case name
[INFO] [stdout]   --> src/main.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 17 |     let T: u32 = 100;
[INFO] [stdout]    |         ^ help: convert the identifier to snake case: `t`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `DMED_agent` should have a snake case name
[INFO] [stdout]   --> src/main.rs:35:13
[INFO] [stdout]    |
[INFO] [stdout] 35 |     let mut DMED_agent = DMED::build_DMEDAgent(4, gaussian_model);
[INFO] [stdout]    |             ^^^^^^^^^^ help: convert the identifier to snake case: `dmed_agent`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `T` should have a snake case name
[INFO] [stdout]   --> src/main.rs:98:9
[INFO] [stdout]    |
[INFO] [stdout] 98 |     let T: u32 = 200;
[INFO] [stdout]    |         ^ help: convert the identifier to snake case: `t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `DMED` should have a snake case name
[INFO] [stdout]  --> src/algorithms.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub mod DMED;
[INFO] [stdout]   |         ^^^^ help: convert the identifier to snake case: `dmed`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `build_DMEDAgent` should have a snake case name
[INFO] [stdout]   --> src/algorithms/DMED.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub fn build_DMEDAgent(arm_size: u32, d_model: Box<dyn Fn(f64, f64) -> f64>) -> DMEDAgent {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `build_dmedagent`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 15.99s
[INFO] running `Command { std: "docker" "inspect" "2ffd86c85292b0c8fd7e5be2889fa7c790c1e2aa7b76519a11f76b4246eb503e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ffd86c85292b0c8fd7e5be2889fa7c790c1e2aa7b76519a11f76b4246eb503e", kill_on_drop: false }`
[INFO] [stdout] 2ffd86c85292b0c8fd7e5be2889fa7c790c1e2aa7b76519a11f76b4246eb503e
