[INFO] cloning repository https://github.com/VnomArrow/hashcode_demo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/VnomArrow/hashcode_demo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVnomArrow%2Fhashcode_demo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVnomArrow%2Fhashcode_demo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 84aa1fc92d38fa2bc6337c074b52d8ca463f0b48
[INFO] testing VnomArrow/hashcode_demo against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVnomArrow%2Fhashcode_demo" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/VnomArrow/hashcode_demo on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/VnomArrow/hashcode_demo
[INFO] finished tweaking git repo https://github.com/VnomArrow/hashcode_demo
[INFO] tweaked toml for git repo https://github.com/VnomArrow/hashcode_demo written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/VnomArrow/hashcode_demo already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 2c7de453e50f242ba4c4d2b5bca5c14bd5addff42b845191d21a2e14e58c1206
[INFO] running `Command { std: "docker" "start" "-a" "2c7de453e50f242ba4c4d2b5bca5c14bd5addff42b845191d21a2e14e58c1206", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2c7de453e50f242ba4c4d2b5bca5c14bd5addff42b845191d21a2e14e58c1206", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c7de453e50f242ba4c4d2b5bca5c14bd5addff42b845191d21a2e14e58c1206", kill_on_drop: false }`
[INFO] [stdout] 2c7de453e50f242ba4c4d2b5bca5c14bd5addff42b845191d21a2e14e58c1206
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=warn" "-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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 2e10c9ceb71d45e78d2fee021e2a94d8c97df054ec61bfb60ef57f9f3424a962
[INFO] running `Command { std: "docker" "start" "-a" "2e10c9ceb71d45e78d2fee021e2a94d8c97df054ec61bfb60ef57f9f3424a962", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.7
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling crossbeam-channel v0.5.2
[INFO] [stderr]    Compiling crossbeam-deque v0.8.1
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling hashcode_demo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `IntoParallelIterator`, `ParallelIterator`
[INFO] [stdout]  --> src/main.rs:4:19
[INFO] [stdout]   |
[INFO] [stdout] 4 | use rayon::iter::{IntoParallelIterator, ParallelIterator};
[INFO] [stdout]   |                   ^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::util::*`
[INFO] [stdout]  --> src/optimizer.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use crate::util::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Rng` is imported redundantly
[INFO] [stdout]    --> src/optimizer.rs:189:17
[INFO] [stdout]     |
[INFO] [stdout] 2   | use rand::Rng;
[INFO] [stdout]     |     --------- the item `Rng` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 189 |             use rand::Rng;
[INFO] [stdout]     |                 ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs::File`
[INFO] [stdout]  --> src/preferences.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::fs::File;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::util::*`
[INFO] [stdout]  --> src/preferences.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::util::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::util::*`
[INFO] [stdout]  --> src/algorithms.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::util::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rand::Rng`
[INFO] [stdout]  --> src/optimizer.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use rand::Rng;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/optimizer.rs:37:9
[INFO] [stdout]    |
[INFO] [stdout] 37 |     for i in 0..iter_count {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `subset_preferences`
[INFO] [stdout]    --> src/preferences.rs:142:54
[INFO] [stdout]     |
[INFO] [stdout] 142 | ...et: &Vec<usize>, subset_preferences: &PizzaPreferenceInfo, origional_preferences: &PizzaPreferenceInfo, pizza: &Pizza) -> Pizza {
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_subset_preferences`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/optimizer.rs:156:9
[INFO] [stdout]     |
[INFO] [stdout] 156 |     let mut pizza = pizza_maker.random_pizza(preference_info.ingrediants.len());
[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/optimizer.rs:169:9
[INFO] [stdout]     |
[INFO] [stdout] 169 |     let mut pizza = pizza_maker.random_pizza(preference_info.ingrediants.len());
[INFO] [stdout]     |         ----^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `print_occurences`
[INFO] [stdout]  --> src/optimizer.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn print_occurences(problem_name: &str) {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `find_by_random`
[INFO] [stdout]    --> src/optimizer.rs:123:8
[INFO] [stdout]     |
[INFO] [stdout] 123 | pub fn find_by_random(problem_name: &str) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `find_by_walking`
[INFO] [stdout]    --> src/optimizer.rs:150:8
[INFO] [stdout]     |
[INFO] [stdout] 150 | pub fn find_by_walking(problem_name: &str) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `find_by_walking_v2`
[INFO] [stdout]    --> src/optimizer.rs:163:8
[INFO] [stdout]     |
[INFO] [stdout] 163 | pub fn find_by_walking_v2(problem_name: &str) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `random_pizza_from_subset`
[INFO] [stdout]    --> src/optimizer.rs:194:12
[INFO] [stdout]     |
[INFO] [stdout] 194 |     pub fn random_pizza_from_subset(&mut self, subset: &Vec<usize>, old_pizza: &Pizza, ingrediant_count: usize) -> Pizza {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `create_from_vec`
[INFO] [stdout]    --> src/optimizer.rs:208:12
[INFO] [stdout]     |
[INFO] [stdout] 208 |     pub fn create_from_vec(ingrediant_count: usize, pizza: &Vec<usize>) -> Self {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `pizza_person_count_ignored`
[INFO] [stdout]    --> src/optimizer.rs:308:12
[INFO] [stdout]     |
[INFO] [stdout] 308 |     pub fn pizza_person_count_ignored(&self, pizza: &Pizza, people_count: usize, ignored_ingrediants: &Pizza) -> usize {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `remake_pizza_from_subset`
[INFO] [stdout]    --> src/preferences.rs:142:8
[INFO] [stdout]     |
[INFO] [stdout] 142 | pub fn remake_pizza_from_subset(subset: &Vec<usize>, subset_preferences: &PizzaPreferenceInfo, origional_preferences: &PizzaPreferenceInf...
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `walk_steep`
[INFO] [stdout]  --> src/algorithms.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn walk_steep(preference_info: &PizzaPreferenceInfo, pizza_in: &Pizza) -> Pizza {
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 20 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.22s
[INFO] running `Command { std: "docker" "inspect" "2e10c9ceb71d45e78d2fee021e2a94d8c97df054ec61bfb60ef57f9f3424a962", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e10c9ceb71d45e78d2fee021e2a94d8c97df054ec61bfb60ef57f9f3424a962", kill_on_drop: false }`
[INFO] [stdout] 2e10c9ceb71d45e78d2fee021e2a94d8c97df054ec61bfb60ef57f9f3424a962
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=warn" "-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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 180a3395203ed49ddd7784ef28c38bf11494b6c411958b03c366dd9d127497d9
[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" "180a3395203ed49ddd7784ef28c38bf11494b6c411958b03c366dd9d127497d9", kill_on_drop: false }`
[INFO] [stderr]    Compiling hashcode_demo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `IntoParallelIterator`, `ParallelIterator`
[INFO] [stdout]  --> src/main.rs:4:19
[INFO] [stdout]   |
[INFO] [stdout] 4 | use rayon::iter::{IntoParallelIterator, ParallelIterator};
[INFO] [stdout]   |                   ^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::util::*`
[INFO] [stdout]  --> src/optimizer.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use crate::util::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Rng` is imported redundantly
[INFO] [stdout]    --> src/optimizer.rs:189:17
[INFO] [stdout]     |
[INFO] [stdout] 2   | use rand::Rng;
[INFO] [stdout]     |     --------- the item `Rng` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 189 |             use rand::Rng;
[INFO] [stdout]     |                 ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs::File`
[INFO] [stdout]  --> src/preferences.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::fs::File;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::util::*`
[INFO] [stdout]  --> src/preferences.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::util::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::util::*`
[INFO] [stdout]  --> src/algorithms.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::util::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rand::Rng`
[INFO] [stdout]  --> src/optimizer.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use rand::Rng;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/optimizer.rs:37:9
[INFO] [stdout]    |
[INFO] [stdout] 37 |     for i in 0..iter_count {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `subset_preferences`
[INFO] [stdout]    --> src/preferences.rs:142:54
[INFO] [stdout]     |
[INFO] [stdout] 142 | ...et: &Vec<usize>, subset_preferences: &PizzaPreferenceInfo, origional_preferences: &PizzaPreferenceInfo, pizza: &Pizza) -> Pizza {
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_subset_preferences`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/optimizer.rs:156:9
[INFO] [stdout]     |
[INFO] [stdout] 156 |     let mut pizza = pizza_maker.random_pizza(preference_info.ingrediants.len());
[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/optimizer.rs:169:9
[INFO] [stdout]     |
[INFO] [stdout] 169 |     let mut pizza = pizza_maker.random_pizza(preference_info.ingrediants.len());
[INFO] [stdout]     |         ----^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `print_occurences`
[INFO] [stdout]  --> src/optimizer.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn print_occurences(problem_name: &str) {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `find_by_random`
[INFO] [stdout]    --> src/optimizer.rs:123:8
[INFO] [stdout]     |
[INFO] [stdout] 123 | pub fn find_by_random(problem_name: &str) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `find_by_walking`
[INFO] [stdout]    --> src/optimizer.rs:150:8
[INFO] [stdout]     |
[INFO] [stdout] 150 | pub fn find_by_walking(problem_name: &str) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `find_by_walking_v2`
[INFO] [stdout]    --> src/optimizer.rs:163:8
[INFO] [stdout]     |
[INFO] [stdout] 163 | pub fn find_by_walking_v2(problem_name: &str) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `random_pizza_from_subset`
[INFO] [stdout]    --> src/optimizer.rs:194:12
[INFO] [stdout]     |
[INFO] [stdout] 194 |     pub fn random_pizza_from_subset(&mut self, subset: &Vec<usize>, old_pizza: &Pizza, ingrediant_count: usize) -> Pizza {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `create_from_vec`
[INFO] [stdout]    --> src/optimizer.rs:208:12
[INFO] [stdout]     |
[INFO] [stdout] 208 |     pub fn create_from_vec(ingrediant_count: usize, pizza: &Vec<usize>) -> Self {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `pizza_person_count_ignored`
[INFO] [stdout]    --> src/optimizer.rs:308:12
[INFO] [stdout]     |
[INFO] [stdout] 308 |     pub fn pizza_person_count_ignored(&self, pizza: &Pizza, people_count: usize, ignored_ingrediants: &Pizza) -> usize {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `remake_pizza_from_subset`
[INFO] [stdout]    --> src/preferences.rs:142:8
[INFO] [stdout]     |
[INFO] [stdout] 142 | pub fn remake_pizza_from_subset(subset: &Vec<usize>, subset_preferences: &PizzaPreferenceInfo, origional_preferences: &PizzaPreferenceInf...
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `walk_steep`
[INFO] [stdout]  --> src/algorithms.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn walk_steep(preference_info: &PizzaPreferenceInfo, pizza_in: &Pizza) -> Pizza {
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 20 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.20s
[INFO] running `Command { std: "docker" "inspect" "180a3395203ed49ddd7784ef28c38bf11494b6c411958b03c366dd9d127497d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "180a3395203ed49ddd7784ef28c38bf11494b6c411958b03c366dd9d127497d9", kill_on_drop: false }`
[INFO] [stdout] 180a3395203ed49ddd7784ef28c38bf11494b6c411958b03c366dd9d127497d9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=warn" "-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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 58a315c6082d10c1b125e3191753ed56572bef1593ecec48c48f93e29d36034f
[INFO] running `Command { std: "docker" "start" "-a" "58a315c6082d10c1b125e3191753ed56572bef1593ecec48c48f93e29d36034f", kill_on_drop: false }`
[INFO] [stderr] warning: unused imports: `IntoParallelIterator`, `ParallelIterator`
[INFO] [stderr]  --> src/main.rs:4:19
[INFO] [stderr]   |
[INFO] [stderr] 4 | use rayon::iter::{IntoParallelIterator, ParallelIterator};
[INFO] [stderr]   |                   ^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::util::*`
[INFO] [stderr]  --> src/optimizer.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use crate::util::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the item `Rng` is imported redundantly
[INFO] [stderr]    --> src/optimizer.rs:189:17
[INFO] [stderr]     |
[INFO] [stderr] 2   | use rand::Rng;
[INFO] [stderr]     |     --------- the item `Rng` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 189 |             use rand::Rng;
[INFO] [stderr]     |                 ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fs::File`
[INFO] [stderr]  --> src/preferences.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::fs::File;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::util::*`
[INFO] [stderr]  --> src/preferences.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use crate::util::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::util::*`
[INFO] [stderr]  --> src/algorithms.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use crate::util::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `rand::Rng`
[INFO] [stderr]  --> src/optimizer.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use rand::Rng;
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/optimizer.rs:37:9
[INFO] [stderr]    |
[INFO] [stderr] 37 |     for i in 0..iter_count {
[INFO] [stderr]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `subset_preferences`
[INFO] [stderr]    --> src/preferences.rs:142:54
[INFO] [stderr]     |
[INFO] [stderr] 142 | ...et: &Vec<usize>, subset_preferences: &PizzaPreferenceInfo, origional_preferences: &PizzaPreferenceInfo, pizza: &Pizza) -> Pizza {
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_subset_preferences`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/optimizer.rs:156:9
[INFO] [stderr]     |
[INFO] [stderr] 156 |     let mut pizza = pizza_maker.random_pizza(preference_info.ingrediants.len());
[INFO] [stderr]     |         ----^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/optimizer.rs:169:9
[INFO] [stderr]     |
[INFO] [stderr] 169 |     let mut pizza = pizza_maker.random_pizza(preference_info.ingrediants.len());
[INFO] [stderr]     |         ----^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `print_occurences`
[INFO] [stderr]  --> src/optimizer.rs:9:8
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub fn print_occurences(problem_name: &str) {
[INFO] [stderr]   |        ^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `find_by_random`
[INFO] [stderr]    --> src/optimizer.rs:123:8
[INFO] [stderr]     |
[INFO] [stderr] 123 | pub fn find_by_random(problem_name: &str) {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `find_by_walking`
[INFO] [stderr]    --> src/optimizer.rs:150:8
[INFO] [stderr]     |
[INFO] [stderr] 150 | pub fn find_by_walking(problem_name: &str) {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `find_by_walking_v2`
[INFO] [stderr]    --> src/optimizer.rs:163:8
[INFO] [stderr]     |
[INFO] [stderr] 163 | pub fn find_by_walking_v2(problem_name: &str) {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `random_pizza_from_subset`
[INFO] [stderr]    --> src/optimizer.rs:194:12
[INFO] [stderr]     |
[INFO] [stderr] 194 |     pub fn random_pizza_from_subset(&mut self, subset: &Vec<usize>, old_pizza: &Pizza, ingrediant_count: usize) -> Pizza {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `create_from_vec`
[INFO] [stderr]    --> src/optimizer.rs:208:12
[INFO] [stderr]     |
[INFO] [stderr] 208 |     pub fn create_from_vec(ingrediant_count: usize, pizza: &Vec<usize>) -> Self {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `pizza_person_count_ignored`
[INFO] [stderr]    --> src/optimizer.rs:308:12
[INFO] [stderr]     |
[INFO] [stderr] 308 |     pub fn pizza_person_count_ignored(&self, pizza: &Pizza, people_count: usize, ignored_ingrediants: &Pizza) -> usize {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `remake_pizza_from_subset`
[INFO] [stderr]    --> src/preferences.rs:142:8
[INFO] [stderr]     |
[INFO] [stderr] 142 | pub fn remake_pizza_from_subset(subset: &Vec<usize>, subset_preferences: &PizzaPreferenceInfo, origional_preferences: &PizzaPreferenceInf...
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `walk_steep`
[INFO] [stderr]  --> src/algorithms.rs:5:8
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn walk_steep(preference_info: &PizzaPreferenceInfo, pizza_in: &Pizza) -> Pizza {
[INFO] [stderr]   |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `hashcode_demo` (bin "hashcode_demo" test) generated 20 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/hashcode_demo-6ee8695fdcc714b7)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "58a315c6082d10c1b125e3191753ed56572bef1593ecec48c48f93e29d36034f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "58a315c6082d10c1b125e3191753ed56572bef1593ecec48c48f93e29d36034f", kill_on_drop: false }`
[INFO] [stdout] 58a315c6082d10c1b125e3191753ed56572bef1593ecec48c48f93e29d36034f