[INFO] fetching crate ratel_bandit 0.1.2...
[INFO] checking ratel_bandit-0.1.2 against try#a7a572ce3edd6d476191fbfe92c9c1986e009b34 for pr-87190-3
[INFO] extracting crate ratel_bandit 0.1.2 into /workspace/builds/worker-52/source
[INFO] validating manifest of crates.io crate ratel_bandit 0.1.2 on toolchain a7a572ce3edd6d476191fbfe92c9c1986e009b34
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ratel_bandit 0.1.2
[INFO] finished tweaking crates.io crate ratel_bandit 0.1.2
[INFO] tweaked toml for crates.io crate ratel_bandit 0.1.2 written to /workspace/builds/worker-52/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rand_distr v0.2.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dcce7fb49c8b254b6c663c494b1e21fb87eecf6493b25019f441a32bfcb3c60d
[INFO] running `Command { std: "docker" "start" "-a" "dcce7fb49c8b254b6c663c494b1e21fb87eecf6493b25019f441a32bfcb3c60d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dcce7fb49c8b254b6c663c494b1e21fb87eecf6493b25019f441a32bfcb3c60d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dcce7fb49c8b254b6c663c494b1e21fb87eecf6493b25019f441a32bfcb3c60d", kill_on_drop: false }`
[INFO] [stdout] dcce7fb49c8b254b6c663c494b1e21fb87eecf6493b25019f441a32bfcb3c60d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2fa31624ce875e530a09eac8af4ec8bbc04fd08de4dce44ed6849b22662d6323
[INFO] running `Command { std: "docker" "start" "-a" "2fa31624ce875e530a09eac8af4ec8bbc04fd08de4dce44ed6849b22662d6323", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] Running `cargo fix --edition`
[INFO] [stderr]     Checking assert_approx_eq v1.1.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking rand_distr v0.2.2
[INFO] [stderr]     Checking ratel_bandit v0.1.2 (/tmp/fixit)
[INFO] [stderr]    Migrating src/lib.rs from 2018 edition to 2021
[INFO] [stdout] warning: associated function is never used: `arm_total`
[INFO] [stdout]   --> src/agent/optimistic.rs:81:8
[INFO] [stdout]    |
[INFO] [stdout] 81 |     fn arm_total(&self) -> &Vec<f64> {
[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/bandit/gamma.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 |     fn new(alphas: &'a Vec<f64>, thetas: &'a Vec<f64>) -> GammaBandit<'a> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/bandit/gaussian.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 |     fn new(means: &'a Vec<f64>, stds: &'a Vec<f64>) -> GaussianBandit<'a> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/bandit/log_normal.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 |     fn new(mus: &'a Vec<f64>, sigmas: &'a Vec<f64>) -> LogNormalBandit<'a> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `average`
[INFO] [stdout]   --> src/util/counter/aggregate_counter.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 17 |     fn average(&self) -> f64 {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/util/counter/aggregate_counter.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 |     fn new() -> AggregateCounter<T> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `total`
[INFO] [stdout]   --> src/util/counter/aggregate_counter.rs:30:8
[INFO] [stdout]    |
[INFO] [stdout] 30 |     fn total(&self) -> &T {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/util/counter/base_counter.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn new() -> BaseCounter<T> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `increment`
[INFO] [stdout]   --> src/util/counter/base_counter.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn increment(&mut self) {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/util/stepper/constant.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 |     fn new(step_size: f64) -> ConstantStepper {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `update`
[INFO] [stdout]   --> src/util/stepper/constant.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 17 |     fn update(&mut self, step_size: f64) {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]        Fixed src/agent/epsilon_greedy.rs (2 fixes)
[INFO] [stdout] warning: unused import: `Stepper`
[INFO] [stdout]   --> src/agent/epsilon_greedy.rs:91:34
[INFO] [stdout]    |
[INFO] [stdout] 91 |     use crate::{HarmonicStepper, Stepper};
[INFO] [stdout]    |                                  ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Stepper`
[INFO] [stdout]   --> src/agent/greedy.rs:62:34
[INFO] [stdout]    |
[INFO] [stdout] 62 |     use crate::{HarmonicStepper, Stepper};
[INFO] [stdout]    |                                  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Stepper`
[INFO] [stdout]   --> src/agent/optimistic.rs:88:34
[INFO] [stdout]    |
[INFO] [stdout] 88 |     use crate::{HarmonicStepper, Stepper};
[INFO] [stdout]    |                                  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `arm_total`
[INFO] [stdout]   --> src/agent/optimistic.rs:81:8
[INFO] [stdout]    |
[INFO] [stdout] 81 |     fn arm_total(&self) -> &Vec<f64> {
[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/util/stepper/constant.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 |     fn new(step_size: f64) -> ConstantStepper {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `update`
[INFO] [stdout]   --> src/util/stepper/constant.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 17 |     fn update(&mut self, step_size: f64) {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.89s
[INFO] [stderr] Running `cargo check` to verify 2021
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking ratel_bandit v0.1.2 (/tmp/fixit)
[INFO] [stdout] warning: associated function is never used: `arm_total`
[INFO] [stdout]   --> src/agent/optimistic.rs:81:8
[INFO] [stdout]    |
[INFO] [stdout] 81 |     fn arm_total(&self) -> &Vec<f64> {
[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/bandit/gamma.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 |     fn new(alphas: &'a Vec<f64>, thetas: &'a Vec<f64>) -> GammaBandit<'a> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/bandit/gaussian.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 |     fn new(means: &'a Vec<f64>, stds: &'a Vec<f64>) -> GaussianBandit<'a> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/bandit/log_normal.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 |     fn new(mus: &'a Vec<f64>, sigmas: &'a Vec<f64>) -> LogNormalBandit<'a> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `average`
[INFO] [stdout]   --> src/util/counter/aggregate_counter.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 17 |     fn average(&self) -> f64 {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/util/counter/aggregate_counter.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 |     fn new() -> AggregateCounter<T> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `total`
[INFO] [stdout]   --> src/util/counter/aggregate_counter.rs:30:8
[INFO] [stdout]    |
[INFO] [stdout] 30 |     fn total(&self) -> &T {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/util/counter/base_counter.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn new() -> BaseCounter<T> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `increment`
[INFO] [stdout]   --> src/util/counter/base_counter.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn increment(&mut self) {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/util/stepper/constant.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 |     fn new(step_size: f64) -> ConstantStepper {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `update`
[INFO] [stdout]   --> src/util/stepper/constant.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 17 |     fn update(&mut self, step_size: f64) {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Stepper`
[INFO] [stdout]   --> src/agent/epsilon_greedy.rs:91:34
[INFO] [stdout]    |
[INFO] [stdout] 91 |     use crate::{HarmonicStepper, Stepper};
[INFO] [stdout]    |                                  ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Stepper`
[INFO] [stdout]   --> src/agent/greedy.rs:62:34
[INFO] [stdout]    |
[INFO] [stdout] 62 |     use crate::{HarmonicStepper, Stepper};
[INFO] [stdout]    |                                  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Stepper`
[INFO] [stdout]   --> src/agent/optimistic.rs:88:34
[INFO] [stdout]    |
[INFO] [stdout] 88 |     use crate::{HarmonicStepper, Stepper};
[INFO] [stdout]    |                                  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `arm_total`
[INFO] [stdout]   --> src/agent/optimistic.rs:81:8
[INFO] [stdout]    |
[INFO] [stdout] 81 |     fn arm_total(&self) -> &Vec<f64> {
[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/util/stepper/constant.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 |     fn new(step_size: f64) -> ConstantStepper {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `update`
[INFO] [stdout]   --> src/util/stepper/constant.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 17 |     fn update(&mut self, step_size: f64) {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.96s
[INFO] running `Command { std: "docker" "inspect" "2fa31624ce875e530a09eac8af4ec8bbc04fd08de4dce44ed6849b22662d6323", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2fa31624ce875e530a09eac8af4ec8bbc04fd08de4dce44ed6849b22662d6323", kill_on_drop: false }`
[INFO] [stdout] 2fa31624ce875e530a09eac8af4ec8bbc04fd08de4dce44ed6849b22662d6323