[INFO] crate spdkit 0.0.18 is already in cache
[INFO] checking spdkit-0.0.18 against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393
[INFO] extracting crate spdkit 0.0.18 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate spdkit 0.0.18 on toolchain 45d050cde277b22a755847338f2acc2c7b834141
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate spdkit 0.0.18
[INFO] finished tweaking crates.io crate spdkit 0.0.18
[INFO] tweaked toml for crates.io crate spdkit 0.0.18 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b6c3d2042284428ac7cb0ff0ff31f7afbbdaf003ebcc963cfdf6b957a53a344f
[INFO] running `"docker" "start" "-a" "b6c3d2042284428ac7cb0ff0ff31f7afbbdaf003ebcc963cfdf6b957a53a344f"`
[INFO] [stderr]     Checking cfg-if v0.1.9
[INFO] [stderr]    Compiling proc-macro2 v1.0.10
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling serde v1.0.106
[INFO] [stderr]    Compiling version_check v0.9.1
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking regex-syntax v0.6.17
[INFO] [stderr]     Checking ppv-lite86 v0.2.6
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]     Checking unicode-width v0.1.7
[INFO] [stderr]    Compiling ryu v1.0.4
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]    Compiling anyhow v1.0.28
[INFO] [stderr]     Checking termcolor v1.1.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling indexmap v1.3.2
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking walkdir v2.3.1
[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]     Checking log v0.4.8
[INFO] [stderr]     Checking crossbeam-utils v0.7.2
[INFO] [stderr]     Checking generic-array v0.13.2
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.2
[INFO] [stderr]    Compiling proc-macro-error v1.0.2
[INFO] [stderr]    Compiling nom v5.1.1
[INFO] [stderr]    Compiling lexical-core v0.6.7
[INFO] [stderr]     Checking crossbeam-epoch v0.8.2
[INFO] [stderr]     Checking crossbeam-queue v0.2.1
[INFO] [stderr]     Checking crossbeam-channel v0.4.2
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking aho-corasick v0.7.10
[INFO] [stderr]     Checking bstr v0.2.12
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]    Compiling quote v1.0.4
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rayon-core v1.7.0
[INFO] [stderr]    Compiling pest_meta v2.1.3
[INFO] [stderr]    Compiling syn v1.0.18
[INFO] [stderr]     Checking rayon v1.3.0
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking regex v1.3.7
[INFO] [stderr]     Checking chrono v0.4.11
[INFO] [stderr]     Checking rand_distr v0.2.2
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking globset v0.4.5
[INFO] [stderr]     Checking pretty_env_logger v0.4.0
[INFO] [stderr]     Checking ignore v0.4.14
[INFO] [stderr]     Checking globwalk v0.8.0
[INFO] [stderr]    Compiling parse-zoneinfo v0.2.1
[INFO] [stderr]    Compiling chrono-tz v0.5.1
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]    Compiling serde_derive v1.0.106
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]    Compiling structopt-derive v0.4.7
[INFO] [stderr]     Checking structopt v0.3.14
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]     Checking serde_json v1.0.52
[INFO] [stderr]     Checking petgraph v0.5.0
[INFO] [stderr]     Checking envy v0.4.1
[INFO] [stderr]     Checking bimap v0.4.0
[INFO] [stderr]     Checking alga v0.9.3
[INFO] [stderr]     Checking gchemol-gut v0.1.3
[INFO] [stderr]     Checking handlebars v3.0.1
[INFO] [stderr]     Checking tera v1.2.0
[INFO] [stderr]     Checking gchemol-parser v0.2.1
[INFO] [stderr]     Checking gchemol-graph v0.1.1
[INFO] [stderr]     Checking nalgebra v0.20.0
[INFO] [stderr]     Checking vecfx v0.1.2
[INFO] [stderr]     Checking octree v0.1.0
[INFO] [stderr]     Checking gchemol-lattice v0.1.0
[INFO] [stderr]     Checking gchemol-geometry v0.0.39
[INFO] [stderr]     Checking gchemol-neighbors v0.1.0
[INFO] [stderr]     Checking gchemol-core v0.0.42
[INFO] [stderr]     Checking gchemol-readwrite v0.0.41
[INFO] [stderr]     Checking gchemol v0.0.41
[INFO] [stderr]     Checking spdkit v0.0.18 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `std::iter::FromIterator`
[INFO] [stderr]  --> src/engine.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::iter::FromIterator;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::encoding::*`
[INFO] [stderr]  --> src/engine.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use crate::encoding::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::operators::*`
[INFO] [stderr]   --> src/engine.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use crate::operators::*;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::encoding::Binary`
[INFO] [stderr]  --> src/fitness.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use crate::encoding::Binary;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::population::*`
[INFO] [stderr]   --> src/gears/breeder.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use crate::population::*;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::encoding::*`
[INFO] [stderr]  --> src/gears/survivor.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use crate::encoding::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::operators::*`
[INFO] [stderr]  --> src/gears/survivor.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use crate::operators::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::common::*`
[INFO] [stderr]  --> src/gears/valuer.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use crate::common::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::operators::*`
[INFO] [stderr]  --> src/gears/valuer.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use crate::operators::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::population::*`
[INFO] [stderr]  --> src/gears/valuer.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use crate::population::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::marker::PhantomData`
[INFO] [stderr]  --> src/individual.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::marker::PhantomData;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::random::*`
[INFO] [stderr]  --> src/individual.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use crate::random::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `gut::prelude::IntoParallelIterator`
[INFO] [stderr]   --> src/individual.rs:87:5
[INFO] [stderr]    |
[INFO] [stderr] 87 | use gut::prelude::IntoParallelIterator;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::common::*`
[INFO] [stderr]  --> src/operators/mod.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use crate::common::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::individual::*`
[INFO] [stderr]  --> src/operators/variation.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use crate::individual::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::marker::PhantomData`
[INFO] [stderr]  --> src/population.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::marker::PhantomData;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::fitness::*`
[INFO] [stderr]  --> src/termination.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use crate::fitness::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::iter::FromIterator`
[INFO] [stderr]  --> src/engine.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::iter::FromIterator;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::operators::*`
[INFO] [stderr]   --> src/engine.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use crate::operators::*;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::common::*`
[INFO] [stderr]    --> src/engine.rs:260:9
[INFO] [stderr]     |
[INFO] [stderr] 260 |     use crate::common::*;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::gears::*`
[INFO] [stderr]    --> src/engine.rs:262:9
[INFO] [stderr]     |
[INFO] [stderr] 262 |     use crate::gears::*;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::encoding::Binary`
[INFO] [stderr]  --> src/fitness.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use crate::encoding::Binary;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::population::*`
[INFO] [stderr]   --> src/gears/breeder.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use crate::population::*;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::encoding::*`
[INFO] [stderr]  --> src/gears/survivor.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use crate::encoding::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::operators::*`
[INFO] [stderr]  --> src/gears/survivor.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use crate::operators::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::common::*`
[INFO] [stderr]  --> src/gears/valuer.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use crate::common::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::operators::*`
[INFO] [stderr]  --> src/gears/valuer.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use crate::operators::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::population::*`
[INFO] [stderr]  --> src/gears/valuer.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use crate::population::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::marker::PhantomData`
[INFO] [stderr]  --> src/individual.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::marker::PhantomData;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::random::*`
[INFO] [stderr]  --> src/individual.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use crate::random::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `gut::prelude::IntoParallelIterator`
[INFO] [stderr]   --> src/individual.rs:87:5
[INFO] [stderr]    |
[INFO] [stderr] 87 | use gut::prelude::IntoParallelIterator;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::common::*`
[INFO] [stderr]  --> src/operators/mod.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use crate::common::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::marker::PhantomData`
[INFO] [stderr]  --> src/population.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::marker::PhantomData;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::fitness::*`
[INFO] [stderr]  --> src/termination.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use crate::fitness::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::common`
[INFO] [stderr]  --> src/gears/breeder.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use crate::common::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::common`
[INFO] [stderr]  --> src/gears/survivor.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use crate::common::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `gut::prelude::ParallelIterator`
[INFO] [stderr]   --> src/individual.rs:88:5
[INFO] [stderr]    |
[INFO] [stderr] 88 | use gut::prelude::ParallelIterator;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::common`
[INFO] [stderr]  --> src/operators/selection.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use crate::common::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::common`
[INFO] [stderr]  --> src/termination.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use crate::common::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `m`
[INFO] [stderr]    --> src/engine.rs:222:21
[INFO] [stderr]     |
[INFO] [stderr] 222 |                 for m in population.members() {
[INFO] [stderr]     |                     ^ help: if this is intentional, prefix it with an underscore: `_m`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `rng`
[INFO] [stderr]   --> src/gears/survivor.rs:58:9
[INFO] [stderr]    |
[INFO] [stderr] 58 |         rng: &mut R,
[INFO] [stderr]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_rng`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n`
[INFO] [stderr]   --> src/operators/replacement.rs:18:9
[INFO] [stderr]    |
[INFO] [stderr] 18 |         n: usize,
[INFO] [stderr]    |         ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `population`
[INFO] [stderr]   --> src/operators/replacement.rs:19:9
[INFO] [stderr]    |
[INFO] [stderr] 19 |         population: &mut Population<G>,
[INFO] [stderr]    |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_population`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `rng`
[INFO] [stderr]   --> src/operators/replacement.rs:20:9
[INFO] [stderr]    |
[INFO] [stderr] 20 |         rng: &mut R,
[INFO] [stderr]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_rng`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/operators/selection.rs:143:18
[INFO] [stderr]     |
[INFO] [stderr] 143 |             let (i, m) = choices
[INFO] [stderr]     |                  ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `rng`
[INFO] [stderr]    --> src/operators/variation.rs:115:69
[INFO] [stderr]     |
[INFO] [stderr] 115 |     fn crossover<R: Rng + Sized>(&self, members: &[Member<Binary>], rng: &mut R) -> Vec<Binary> {
[INFO] [stderr]     |                                                                     ^^^ help: if this is intentional, prefix it with an underscore: `_rng`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/lib.rs:45:17
[INFO] [stderr]    |
[INFO] [stderr] 45 |         fn fmax(mut self) -> Option<f64> {
[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/lib.rs:48:17
[INFO] [stderr]    |
[INFO] [stderr] 48 |         fn fmin(mut self) -> Option<f64> {
[INFO] [stderr]    |                 ----^^^^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/lib.rs:51:17
[INFO] [stderr]    |
[INFO] [stderr] 51 |         fn imax(mut self) -> Option<(usize, f64)> {
[INFO] [stderr]    |                 ----^^^^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/lib.rs:54:17
[INFO] [stderr]    |
[INFO] [stderr] 54 |         fn imin(mut self) -> Option<(usize, f64)> {
[INFO] [stderr]    |                 ----^^^^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/encoding.rs:92:13
[INFO] [stderr]    |
[INFO] [stderr] 92 |         let mut choices: Vec<_> = (0..self.len()).collect();
[INFO] [stderr]    |             ----^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/engine.rs:126:9
[INFO] [stderr]     |
[INFO] [stderr] 126 |     let mut new_population = valuer
[INFO] [stderr]     |         ----^^^^^^^^^^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/operators/selection.rs:206:19
[INFO] [stderr]     |
[INFO] [stderr] 206 |             .map(|mut part| {
[INFO] [stderr]     |                   ----^^^^
[INFO] [stderr]     |                   |
[INFO] [stderr]     |                   help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/random.rs:28:13
[INFO] [stderr]    |
[INFO] [stderr] 28 |         let mut r = get_rng_with_seed(None);
[INFO] [stderr]    |             ----^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `random_seed_u64`
[INFO] [stderr]   --> src/random.rs:15:4
[INFO] [stderr]    |
[INFO] [stderr] 15 | fn random_seed_u64() -> u64 {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `population`
[INFO] [stderr]    --> src/engine.rs:149:5
[INFO] [stderr]     |
[INFO] [stderr] 149 |     population: Option<Population<G>>,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `reset`
[INFO] [stderr]   --> src/annealing.rs:48:5
[INFO] [stderr]    |
[INFO] [stderr] 48 |     pub fn reset(&mut self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::common`
[INFO] [stderr]  --> src/gears/breeder.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use crate::common::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::common`
[INFO] [stderr]  --> src/gears/survivor.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use crate::common::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `gut::prelude::ParallelIterator`
[INFO] [stderr]   --> src/individual.rs:88:5
[INFO] [stderr]    |
[INFO] [stderr] 88 | use gut::prelude::ParallelIterator;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::common`
[INFO] [stderr]  --> src/operators/selection.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use crate::common::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::common`
[INFO] [stderr]  --> src/termination.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use crate::common::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `m`
[INFO] [stderr]    --> src/engine.rs:222:21
[INFO] [stderr]     |
[INFO] [stderr] 222 |                 for m in population.members() {
[INFO] [stderr]     |                     ^ help: if this is intentional, prefix it with an underscore: `_m`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `rng`
[INFO] [stderr]   --> src/gears/survivor.rs:58:9
[INFO] [stderr]    |
[INFO] [stderr] 58 |         rng: &mut R,
[INFO] [stderr]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_rng`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n`
[INFO] [stderr]   --> src/operators/replacement.rs:18:9
[INFO] [stderr]    |
[INFO] [stderr] 18 |         n: usize,
[INFO] [stderr]    |         ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `population`
[INFO] [stderr]   --> src/operators/replacement.rs:19:9
[INFO] [stderr]    |
[INFO] [stderr] 19 |         population: &mut Population<G>,
[INFO] [stderr]    |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_population`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `rng`
[INFO] [stderr]   --> src/operators/replacement.rs:20:9
[INFO] [stderr]    |
[INFO] [stderr] 20 |         rng: &mut R,
[INFO] [stderr]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_rng`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/operators/selection.rs:143:18
[INFO] [stderr]     |
[INFO] [stderr] 143 |             let (i, m) = choices
[INFO] [stderr]     |                  ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `child`
[INFO] [stderr]    --> src/operators/variation.rs:102:9
[INFO] [stderr]     |
[INFO] [stderr] 102 |     for child in OnePointCrossOver.breed_from(&parents, &mut *rng) {
[INFO] [stderr]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_child`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `rng`
[INFO] [stderr]    --> src/operators/variation.rs:115:69
[INFO] [stderr]     |
[INFO] [stderr] 115 |     fn crossover<R: Rng + Sized>(&self, members: &[Member<Binary>], rng: &mut R) -> Vec<Binary> {
[INFO] [stderr]     |                                                                     ^^^ help: if this is intentional, prefix it with an underscore: `_rng`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `m`
[INFO] [stderr]    --> src/population.rs:263:13
[INFO] [stderr]     |
[INFO] [stderr] 263 |         for m in members.iter() {
[INFO] [stderr]     |             ^ help: if this is intentional, prefix it with an underscore: `_m`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/lib.rs:45:17
[INFO] [stderr]    |
[INFO] [stderr] 45 |         fn fmax(mut self) -> Option<f64> {
[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/lib.rs:48:17
[INFO] [stderr]    |
[INFO] [stderr] 48 |         fn fmin(mut self) -> Option<f64> {
[INFO] [stderr]    |                 ----^^^^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/lib.rs:51:17
[INFO] [stderr]    |
[INFO] [stderr] 51 |         fn imax(mut self) -> Option<(usize, f64)> {
[INFO] [stderr]    |                 ----^^^^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/lib.rs:54:17
[INFO] [stderr]    |
[INFO] [stderr] 54 |         fn imin(mut self) -> Option<(usize, f64)> {
[INFO] [stderr]    |                 ----^^^^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: 40 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/encoding.rs:92:13
[INFO] [stderr]    |
[INFO] [stderr] 92 |         let mut choices: Vec<_> = (0..self.len()).collect();
[INFO] [stderr]    |             ----^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/engine.rs:126:9
[INFO] [stderr]     |
[INFO] [stderr] 126 |     let mut new_population = valuer
[INFO] [stderr]     |         ----^^^^^^^^^^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/operators/selection.rs:206:19
[INFO] [stderr]     |
[INFO] [stderr] 206 |             .map(|mut part| {
[INFO] [stderr]     |                   ----^^^^
[INFO] [stderr]     |                   |
[INFO] [stderr]     |                   help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/random.rs:28:13
[INFO] [stderr]    |
[INFO] [stderr] 28 |         let mut r = get_rng_with_seed(None);
[INFO] [stderr]    |             ----^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `random_seed_u64`
[INFO] [stderr]   --> src/random.rs:15:4
[INFO] [stderr]    |
[INFO] [stderr] 15 | fn random_seed_u64() -> u64 {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `population`
[INFO] [stderr]    --> src/engine.rs:149:5
[INFO] [stderr]     |
[INFO] [stderr] 149 |     population: Option<Population<G>>,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `reset`
[INFO] [stderr]   --> src/annealing.rs:48:5
[INFO] [stderr]    |
[INFO] [stderr] 48 |     pub fn reset(&mut self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 42 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 36s
[INFO] running `"docker" "inspect" "b6c3d2042284428ac7cb0ff0ff31f7afbbdaf003ebcc963cfdf6b957a53a344f"`
[INFO] running `"docker" "rm" "-f" "b6c3d2042284428ac7cb0ff0ff31f7afbbdaf003ebcc963cfdf6b957a53a344f"`
[INFO] [stdout] b6c3d2042284428ac7cb0ff0ff31f7afbbdaf003ebcc963cfdf6b957a53a344f