[INFO] cloning repository https://github.com/anderson-international/spea2
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/anderson-international/spea2" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanderson-international%2Fspea2", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanderson-international%2Fspea2'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 27f7cfbfd8964103d7cd9812880ea321640bd7bb
[INFO] testing anderson-international/spea2 against 1.69.0 for beta-1.70-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanderson-international%2Fspea2" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/anderson-international/spea2 on toolchain 1.69.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/anderson-international/spea2
[INFO] removed 2 missing examples
[INFO] finished tweaking git repo https://github.com/anderson-international/spea2
[INFO] tweaked toml for git repo https://github.com/anderson-international/spea2 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/anderson-international/spea2 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" "+1.69.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stdout] c8c7d1c151cd479db3c857d5477f6988d257d45277240a7d77ecc20e2c7c9da2
[INFO] running `Command { std: "docker" "start" "-a" "c8c7d1c151cd479db3c857d5477f6988d257d45277240a7d77ecc20e2c7c9da2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c8c7d1c151cd479db3c857d5477f6988d257d45277240a7d77ecc20e2c7c9da2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c8c7d1c151cd479db3c857d5477f6988d257d45277240a7d77ecc20e2c7c9da2", kill_on_drop: false }`
[INFO] [stdout] c8c7d1c151cd479db3c857d5477f6988d257d45277240a7d77ecc20e2c7c9da2
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[INFO] [stdout] warning: unused imports: `crossover`, `mutation`
[INFO] [stdout]  --> src/reproduction.rs:2:13
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::{crossover, mutation};
[INFO] [stdout]   |             ^^^^^^^^^  ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rand::Rng`
[INFO] [stdout]  --> src/reproduction.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use rand::Rng;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]   --> src/crossover.rs:14:50
[INFO] [stdout]    |
[INFO] [stdout] 14 |     for [p1, p2] in model.mating_pool.iter_mut().array_chunks() {
[INFO] [stdout]    |                                                  ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]    = help: call with fully qualified syntax `itermore::Itermore::array_chunks(...)` to keep using the current method
[INFO] [stdout]    = note: `#[warn(unstable_name_collisions)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mutation`
[INFO] [stdout]  --> src/reproduction.rs:5:37
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn reproduce(model: &mut Model, mutation: &mut MutationOperator) {
[INFO] [stdout]   |                                     ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_mutation`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MUTATION_RATE` is never used
[INFO] [stdout]  --> src/constants.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub const MUTATION_RATE: f64 = 0.1;
[INFO] [stdout]   |           ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `neighbourhood_crossover` is never used
[INFO] [stdout]  --> src/crossover.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn neighbourhood_crossover(model: &mut Model) {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sort_pool_by_objective` is never used
[INFO] [stdout]   --> src/crossover.rs:19:4
[INFO] [stdout]    |
[INFO] [stdout] 19 | fn sort_pool_by_objective(model: &mut Model) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `neighbourhood_shuffle` is never used
[INFO] [stdout]   --> src/crossover.rs:26:4
[INFO] [stdout]    |
[INFO] [stdout] 26 | fn neighbourhood_shuffle(model: &'_ mut Model, rng: &mut ThreadRng) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `perform_crossover` is never used
[INFO] [stdout]   --> src/crossover.rs:36:4
[INFO] [stdout]    |
[INFO] [stdout] 36 | fn perform_crossover(p1: &mut ModelItem, p2: &mut ModelItem, split_index: usize) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `mutate` is never used
[INFO] [stdout]  --> src/mutation.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn mutate(model: &mut Model, mutation: &mut MutationOperator) {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 54.66s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: criterion v0.3.5
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "fbb7aa22984de6c702b8e87ee33fc44638434d61a3283269ebca57e07482508b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fbb7aa22984de6c702b8e87ee33fc44638434d61a3283269ebca57e07482508b", kill_on_drop: false }`
[INFO] [stdout] fbb7aa22984de6c702b8e87ee33fc44638434d61a3283269ebca57e07482508b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 41b1b905c744aa020a867cdfbb190e1dd445313a825adfc17456603569fbdddb
[INFO] running `Command { std: "docker" "start" "-a" "41b1b905c744aa020a867cdfbb190e1dd445313a825adfc17456603569fbdddb", kill_on_drop: false }`
[INFO] [stdout] warning: unused imports: `crossover`, `mutation`
[INFO] [stdout]  --> src/reproduction.rs:2:13
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::{crossover, mutation};
[INFO] [stdout]   |             ^^^^^^^^^  ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rand::Rng`
[INFO] [stdout]  --> src/reproduction.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use rand::Rng;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]   --> src/crossover.rs:14:50
[INFO] [stdout]    |
[INFO] [stdout] 14 |     for [p1, p2] in model.mating_pool.iter_mut().array_chunks() {
[INFO] [stdout]    |                                                  ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]    = help: call with fully qualified syntax `itermore::Itermore::array_chunks(...)` to keep using the current method
[INFO] [stdout]    = note: `#[warn(unstable_name_collisions)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mutation`
[INFO] [stdout]  --> src/reproduction.rs:5:37
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn reproduce(model: &mut Model, mutation: &mut MutationOperator) {
[INFO] [stdout]   |                                     ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_mutation`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MUTATION_RATE` is never used
[INFO] [stdout]  --> src/constants.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub const MUTATION_RATE: f64 = 0.1;
[INFO] [stdout]   |           ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `neighbourhood_crossover` is never used
[INFO] [stdout]  --> src/crossover.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn neighbourhood_crossover(model: &mut Model) {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sort_pool_by_objective` is never used
[INFO] [stdout]   --> src/crossover.rs:19:4
[INFO] [stdout]    |
[INFO] [stdout] 19 | fn sort_pool_by_objective(model: &mut Model) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling spea2 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `neighbourhood_shuffle` is never used
[INFO] [stdout]   --> src/crossover.rs:26:4
[INFO] [stdout]    |
[INFO] [stdout] 26 | fn neighbourhood_shuffle(model: &'_ mut Model, rng: &mut ThreadRng) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `perform_crossover` is never used
[INFO] [stdout]   --> src/crossover.rs:36:4
[INFO] [stdout]    |
[INFO] [stdout] 36 | fn perform_crossover(p1: &mut ModelItem, p2: &mut ModelItem, split_index: usize) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `mutate` is never used
[INFO] [stdout]  --> src/mutation.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn mutate(model: &mut Model, mutation: &mut MutationOperator) {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `crossover`, `mutation`
[INFO] [stdout]  --> src/reproduction.rs:2:13
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::{crossover, mutation};
[INFO] [stdout]   |             ^^^^^^^^^  ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rand::Rng`
[INFO] [stdout]  --> src/reproduction.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use rand::Rng;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]   --> src/crossover.rs:14:50
[INFO] [stdout]    |
[INFO] [stdout] 14 |     for [p1, p2] in model.mating_pool.iter_mut().array_chunks() {
[INFO] [stdout]    |                                                  ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]    = help: call with fully qualified syntax `itermore::Itermore::array_chunks(...)` to keep using the current method
[INFO] [stdout]    = note: `#[warn(unstable_name_collisions)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]   --> src/crossover.rs:59:50
[INFO] [stdout]    |
[INFO] [stdout] 59 |         for [p1, p2] in model.mating_pool.iter().array_chunks() {
[INFO] [stdout]    |                                                  ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]    = help: call with fully qualified syntax `itermore::Itermore::array_chunks(...)` to keep using the current method
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]   --> src/crossover.rs:64:50
[INFO] [stdout]    |
[INFO] [stdout] 64 |         for [p1, p2] in model.mating_pool.iter().array_chunks() {
[INFO] [stdout]    |                                                  ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]    = help: call with fully qualified syntax `itermore::Itermore::array_chunks(...)` to keep using the current method
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mutation`
[INFO] [stdout]  --> src/reproduction.rs:5:37
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn reproduce(model: &mut Model, mutation: &mut MutationOperator) {
[INFO] [stdout]   |                                     ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_mutation`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MUTATION_RATE` is never used
[INFO] [stdout]  --> src/constants.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub const MUTATION_RATE: f64 = 0.1;
[INFO] [stdout]   |           ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `neighbourhood_crossover` is never used
[INFO] [stdout]  --> src/crossover.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn neighbourhood_crossover(model: &mut Model) {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `mutate` is never used
[INFO] [stdout]  --> src/mutation.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn mutate(model: &mut Model, mutation: &mut MutationOperator) {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 4.37s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: criterion v0.3.5
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "41b1b905c744aa020a867cdfbb190e1dd445313a825adfc17456603569fbdddb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "41b1b905c744aa020a867cdfbb190e1dd445313a825adfc17456603569fbdddb", kill_on_drop: false }`
[INFO] [stdout] 41b1b905c744aa020a867cdfbb190e1dd445313a825adfc17456603569fbdddb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c3de6349620864597d80f06dea163b782e393b316af0229f6fa6b198cf3d8892
[INFO] running `Command { std: "docker" "start" "-a" "c3de6349620864597d80f06dea163b782e393b316af0229f6fa6b198cf3d8892", kill_on_drop: false }`
[INFO] [stderr] warning: unused imports: `crossover`, `mutation`
[INFO] [stderr]  --> src/reproduction.rs:2:13
[INFO] [stderr]   |
[INFO] [stderr] 2 | use crate::{crossover, mutation};
[INFO] [stderr]   |             ^^^^^^^^^  ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `rand::Rng`
[INFO] [stderr]  --> src/reproduction.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use rand::Rng;
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]   --> src/crossover.rs:14:50
[INFO] [stderr]    |
[INFO] [stderr] 14 |     for [p1, p2] in model.mating_pool.iter_mut().array_chunks() {
[INFO] [stderr]    |                                                  ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]    = help: call with fully qualified syntax `itermore::Itermore::array_chunks(...)` to keep using the current method
[INFO] [stderr]    = note: `#[warn(unstable_name_collisions)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `mutation`
[INFO] [stderr]  --> src/reproduction.rs:5:37
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn reproduce(model: &mut Model, mutation: &mut MutationOperator) {
[INFO] [stderr]   |                                     ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_mutation`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant `MUTATION_RATE` is never used
[INFO] [stderr]  --> src/constants.rs:1:11
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub const MUTATION_RATE: f64 = 0.1;
[INFO] [stderr]   |           ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `neighbourhood_crossover` is never used
[INFO] [stderr]  --> src/crossover.rs:7:8
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub fn neighbourhood_crossover(model: &mut Model) {
[INFO] [stderr]   |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `sort_pool_by_objective` is never used
[INFO] [stderr]   --> src/crossover.rs:19:4
[INFO] [stderr]    |
[INFO] [stderr] 19 | fn sort_pool_by_objective(model: &mut Model) {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `neighbourhood_shuffle` is never used
[INFO] [stderr]   --> src/crossover.rs:26:4
[INFO] [stderr]    |
[INFO] [stderr] 26 | fn neighbourhood_shuffle(model: &'_ mut Model, rng: &mut ThreadRng) {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `perform_crossover` is never used
[INFO] [stderr]   --> src/crossover.rs:36:4
[INFO] [stderr]    |
[INFO] [stderr] 36 | fn perform_crossover(p1: &mut ModelItem, p2: &mut ModelItem, split_index: usize) {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `mutate` is never used
[INFO] [stderr]  --> src/mutation.rs:8:8
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub fn mutate(model: &mut Model, mutation: &mut MutationOperator) {
[INFO] [stderr]   |        ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]   --> src/crossover.rs:59:50
[INFO] [stderr]    |
[INFO] [stderr] 59 |         for [p1, p2] in model.mating_pool.iter().array_chunks() {
[INFO] [stderr]    |                                                  ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]    = help: call with fully qualified syntax `itermore::Itermore::array_chunks(...)` to keep using the current method
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]   --> src/crossover.rs:64:50
[INFO] [stderr]    |
[INFO] [stderr] 64 |         for [p1, p2] in model.mating_pool.iter().array_chunks() {
[INFO] [stderr]    |                                                  ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]    = help: call with fully qualified syntax `itermore::Itermore::array_chunks(...)` to keep using the current method
[INFO] [stderr] 
[INFO] [stderr] warning: `spea2` (lib) generated 10 warnings (run `cargo fix --lib -p spea2` to apply 3 suggestions)
[INFO] [stderr] warning: `spea2` (lib test) generated 9 warnings (7 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.12s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: criterion v0.3.5
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] [stderr]      Running unittests src/spea2.rs (/opt/rustwide/target/debug/deps/spea2-61b907a1b3e33d62)
[INFO] [stdout] 
[INFO] [stdout] running 20 tests
[INFO] [stdout] test crossover::tests::crossover_sort_pool_by_objective ... ok
[INFO] [stdout] test fitness::tests::fitness_distances ... ok
[INFO] [stdout] test fitness::tests::fitness_fitness ... ok
[INFO] [stdout] test crossover::tests::crossover_perform_crossover ... ok
[INFO] [stdout] test crossover::tests::crossover_neighbourhood_shuffle ... ok
[INFO] [stdout] test model::tests::model_get_average_archive_values ... ok
[INFO] [stdout] test model::tests::model_next_objective_sort_index ... ok
[INFO] [stdout] test fitness::tests::fitness_strengths ... ok
[INFO] [stdout] test reproduction::tests::model_set_next_population ... ok
[INFO] [stdout] test selection::tests::selection_drain_model_by_dominance ... ok
[INFO] [stdout] test selection::tests::selection_ensure_archive_size_extend ... ok
[INFO] [stdout] test selection::tests::selection_get_closest_with_tiebreak ... ok
[INFO] [stdout] test selection::tests::selection_ensure_archive_size_truncate ... ok
[INFO] [stdout] test selection::tests::selection_get_orderable_distances ... ok
[INFO] [stdout] test mutation::tests::mutation_perform_mutation ... ok
[INFO] [stdout] test selection::tests::selection_get_closest ... ok
[INFO] [stdout] test fitness::tests::fitness_dominators ... ok
[INFO] [stdout] test tests::spea2_evolve_average_fitness ... ok
[INFO] [stdout] test tests::spea2_evolve_average_archive_values ... ok
[INFO] [stdout] test reproduction::tests::reproduction_select_mating_pool ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- reproduction::tests::reproduction_select_mating_pool stdout ----
[INFO] [stdout] thread 'reproduction::tests::reproduction_select_mating_pool' panicked at 'assertion failed: `(left == right)`
[INFO] [stdout]   left: `11`,
[INFO] [stdout]  right: `10`', src/reproduction.rs:51:9
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x55b1f4856e9a - std::backtrace_rs::backtrace::libunwind::trace::ha9053a9a07ca49cb
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5
[INFO] [stdout]    1:     0x55b1f4856e9a - std::backtrace_rs::backtrace::trace_unsynchronized::h9c2852a457ad564e
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x55b1f4856e9a - std::sys_common::backtrace::_print_fmt::h457936fbfaa0070f
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/sys_common/backtrace.rs:65:5
[INFO] [stdout]    3:     0x55b1f4856e9a - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h5779d7bf7f70cb0c
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/sys_common/backtrace.rs:44:22
[INFO] [stdout]    4:     0x55b1f487b06e - core::fmt::write::h5a4baaff1bcd3eb5
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/core/src/fmt/mod.rs:1232:17
[INFO] [stdout]    5:     0x55b1f4854315 - std::io::Write::write_fmt::h478f79c628ef31d1
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/io/mod.rs:1684:15
[INFO] [stdout]    6:     0x55b1f4856c65 - std::sys_common::backtrace::_print::h5fcdc36060f177e8
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/sys_common/backtrace.rs:47:5
[INFO] [stdout]    7:     0x55b1f4856c65 - std::sys_common::backtrace::print::h54ca9458b876c8bf
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/sys_common/backtrace.rs:34:9
[INFO] [stdout]    8:     0x55b1f4858a2f - std::panicking::default_hook::{{closure}}::hbe471161c7664ed6
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/panicking.rs:271:22
[INFO] [stdout]    9:     0x55b1f48586ef - std::panicking::default_hook::ha3500da57aa4ac4f
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/panicking.rs:287:9
[INFO] [stdout]   10:     0x55b1f47e51f7 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::hdf1b89dd137ece34
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/alloc/src/boxed.rs:2001:9
[INFO] [stdout]   11:     0x55b1f47e51f7 - test::test_main::{{closure}}::h9081a79f20e75698
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/test/src/lib.rs:135:21
[INFO] [stdout]   12:     0x55b1f485915d - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h6507bddc3eebb4a5
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/alloc/src/boxed.rs:2001:9
[INFO] [stdout]   13:     0x55b1f485915d - std::panicking::rust_panic_with_hook::h50c09d000dc561d2
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/panicking.rs:696:13
[INFO] [stdout]   14:     0x55b1f4858ed9 - std::panicking::begin_panic_handler::{{closure}}::h9e2b2176e00e0d9c
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/panicking.rs:583:13
[INFO] [stdout]   15:     0x55b1f4857306 - std::sys_common::backtrace::__rust_end_short_backtrace::h5739b8e512c09d02
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/sys_common/backtrace.rs:150:18
[INFO] [stdout]   16:     0x55b1f4858be2 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/panicking.rs:579:5
[INFO] [stdout]   17:     0x55b1f477bfc3 - core::panicking::panic_fmt::hf33a1475b4dc5c3e
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/core/src/panicking.rs:64:14
[INFO] [stdout]   18:     0x55b1f477c29f - core::panicking::assert_failed_inner::haf9816227b20b6f2
[INFO] [stdout]   19:     0x55b1f4826ffa - core::panicking::assert_failed::h5ab0a9ff7f1ac073
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/core/src/panicking.rs:211:5
[INFO] [stdout]   20:     0x55b1f47b10fe - spea2::reproduction::tests::reproduction_select_mating_pool::hb976de850435c405
[INFO] [stdout]                                at /opt/rustwide/workdir/src/reproduction.rs:51:9
[INFO] [stdout]   21:     0x55b1f47b0fa7 - spea2::reproduction::tests::reproduction_select_mating_pool::{{closure}}::hccdb4bac839bbdc2
[INFO] [stdout]                                at /opt/rustwide/workdir/src/reproduction.rs:44:42
[INFO] [stdout]   22:     0x55b1f4797335 - core::ops::function::FnOnce::call_once::ha60c833546ba6c3e
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   23:     0x55b1f47ea5df - core::ops::function::FnOnce::call_once::h7d969581be7d0075
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x55b1f47ea5df - test::__rust_begin_short_backtrace::hca25a52684e56655
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/test/src/lib.rs:656:18
[INFO] [stdout]   25:     0x55b1f47bbbfc - test::run_test::{{closure}}::ha8ac744c4af1a4bb
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/test/src/lib.rs:647:30
[INFO] [stdout]   26:     0x55b1f47bbbfc - core::ops::function::FnOnce::call_once{{vtable.shim}}::h7b411a9ed45bdecf
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   27:     0x55b1f47e95a6 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hd05328869a8ed200
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/alloc/src/boxed.rs:1987:9
[INFO] [stdout]   28:     0x55b1f47e95a6 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h0c601ce20bd5b2be
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/core/src/panic/unwind_safe.rs:271:9
[INFO] [stdout]   29:     0x55b1f47e95a6 - std::panicking::try::do_call::ha4be5c164fe30854
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/panicking.rs:487:40
[INFO] [stdout]   30:     0x55b1f47e95a6 - std::panicking::try::h604546f3609af05f
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/panicking.rs:451:19
[INFO] [stdout]   31:     0x55b1f47e95a6 - std::panic::catch_unwind::h5bfa8afe44c9c2f9
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/panic.rs:140:14
[INFO] [stdout]   32:     0x55b1f47e95a6 - test::run_test_in_process::hd50dee55dd63e6aa
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/test/src/lib.rs:679:27
[INFO] [stdout]   33:     0x55b1f47e95a6 - test::run_test::run_test_inner::{{closure}}::h4aa0f433aa85cea8
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/test/src/lib.rs:573:39
[INFO] [stdout]   34:     0x55b1f47b6271 - test::run_test::run_test_inner::{{closure}}::had56431adf24b4d6
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/test/src/lib.rs:600:37
[INFO] [stdout]   35:     0x55b1f47b6271 - std::sys_common::backtrace::__rust_begin_short_backtrace::ha8d9890e0c73bf13
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/sys_common/backtrace.rs:134:18
[INFO] [stdout]   36:     0x55b1f47bbc8b - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h251832bcb4a95327
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/thread/mod.rs:560:17
[INFO] [stdout]   37:     0x55b1f47bbc8b - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h8fdff598fa414831
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/core/src/panic/unwind_safe.rs:271:9
[INFO] [stdout]   38:     0x55b1f47bbc8b - std::panicking::try::do_call::h455dd2f7764a950f
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/panicking.rs:487:40
[INFO] [stdout]   39:     0x55b1f47bbc8b - std::panicking::try::had6f23b7b73ae72a
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/panicking.rs:451:19
[INFO] [stdout]   40:     0x55b1f47bbc8b - std::panic::catch_unwind::ha6a5ca3915b4dad0
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/panic.rs:140:14
[INFO] [stdout]   41:     0x55b1f47bbc8b - std::thread::Builder::spawn_unchecked_::{{closure}}::h883b72ef75da6231
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/thread/mod.rs:559:30
[INFO] [stdout]   42:     0x55b1f47bbc8b - core::ops::function::FnOnce::call_once{{vtable.shim}}::hb7dff73dc8bd2ccb
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   43:     0x55b1f485d4c3 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h39990b24eedef2ab
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/alloc/src/boxed.rs:1987:9
[INFO] [stdout]   44:     0x55b1f485d4c3 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h01a027258444143b
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/alloc/src/boxed.rs:1987:9
[INFO] [stdout]   45:     0x55b1f485d4c3 - std::sys::unix::thread::Thread::new::thread_start::ha4f1cdd9c25884ba
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/sys/unix/thread.rs:108:17
[INFO] [stdout]   46:     0x7efc8cf69b43 - <unknown>
[INFO] [stdout]   47:     0x7efc8cffabb4 - __clone
[INFO] [stdout]   48:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     reproduction::tests::reproduction_select_mating_pool
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 19 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] running `Command { std: "docker" "inspect" "c3de6349620864597d80f06dea163b782e393b316af0229f6fa6b198cf3d8892", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c3de6349620864597d80f06dea163b782e393b316af0229f6fa6b198cf3d8892", kill_on_drop: false }`
[INFO] [stdout] c3de6349620864597d80f06dea163b782e393b316af0229f6fa6b198cf3d8892
