[INFO] fetching crate rsml 0.1.0...
[INFO] building rsml-0.1.0 against try#4987e9d4227139400384ab59296ffee3b0fb1183 for pr-146237-2
[INFO] extracting crate rsml 0.1.0 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate rsml 0.1.0
[INFO] finished tweaking crates.io crate rsml 0.1.0
[INFO] tweaked toml for crates.io crate rsml 0.1.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rsml 0.1.0 on toolchain 4987e9d4227139400384ab59296ffee3b0fb1183
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 20 packages to latest compatible versions
[INFO] [stderr]       Adding rand v0.6.5 (available: v0.9.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c32ed9892101b3b102a9cdec6a990c52a1a61b032bd9497aa049e3caa188ab89
[INFO] running `Command { std: "docker" "start" "-a" "c32ed9892101b3b102a9cdec6a990c52a1a61b032bd9497aa049e3caa188ab89", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c32ed9892101b3b102a9cdec6a990c52a1a61b032bd9497aa049e3caa188ab89", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c32ed9892101b3b102a9cdec6a990c52a1a61b032bd9497aa049e3caa188ab89", kill_on_drop: false }`
[INFO] [stdout] c32ed9892101b3b102a9cdec6a990c52a1a61b032bd9497aa049e3caa188ab89
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 28ba571dfb8838ed5e2d5f577ac669c6b8b9f660470ac9852aef192ac8e1aa65
[INFO] running `Command { std: "docker" "start" "-a" "28ba571dfb8838ed5e2d5f577ac669c6b8b9f660470ac9852aef192ac8e1aa65", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]    Compiling autocfg v0.1.8
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rsml v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/distance/chebyshev.rs:15:76
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn calc_distance(&self, a: &Vec<f64>, b: &Vec<f64>) -> Result<f64, Box<Error>> {
[INFO] [stdout]    |                                                                            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn calc_distance(&self, a: &Vec<f64>, b: &Vec<f64>) -> Result<f64, Box<dyn Error>> {
[INFO] [stdout]    |                                                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/classification/k_means.rs:51:17
[INFO] [stdout]    |
[INFO] [stdout] 51 |             let mut clusters = &mut self.clusters;
[INFO] [stdout]    |                 ----^^^^^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `k`, `data`, `clusters`, and `distance` are never read
[INFO] [stdout]   --> src/classification/k_means.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout]  9 | pub struct KMeans<D: Distance> {
[INFO] [stdout]    |            ------ fields in this struct
[INFO] [stdout] 10 |     k: usize,
[INFO] [stdout]    |     ^
[INFO] [stdout] 11 |     data: Vec<Vec<f64>>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 12 |     clusters: Vec<Cluster>,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 13 |     distance: D,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `cluster_to_centroids` are never used
[INFO] [stdout]   --> src/classification/k_means.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | impl<D: Distance> KMeans<D> {
[INFO] [stdout]    | --------------------------- associated items in this implementation
[INFO] [stdout] 17 |     fn new(data: Vec<Vec<f64>>, k: usize, distance: D) -> Result<Self, Box<dyn Error>> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 49 |     fn cluster_to_centroids(&mut self) -> Result<(), Box<dyn Error>> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `centroid` and `elements` are never read
[INFO] [stdout]   --> src/classification/k_means.rs:76:5
[INFO] [stdout]    |
[INFO] [stdout] 75 | struct Cluster {
[INFO] [stdout]    |        ------- fields in this struct
[INFO] [stdout] 76 |     centroid: usize,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 77 |     elements: Vec<usize>,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Cluster` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/classification/k_means.rs:81:8
[INFO] [stdout]    |
[INFO] [stdout] 80 | impl Cluster {
[INFO] [stdout]    | ------------ associated function in this implementation
[INFO] [stdout] 81 |     fn new(centroid: usize) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Generations` is never constructed
[INFO] [stdout]   --> src/population.rs:56:5
[INFO] [stdout]    |
[INFO] [stdout] 55 | pub enum PopulationGoal {
[INFO] [stdout]    |          -------------- variant in this enum
[INFO] [stdout] 56 |     Generations(u64),
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.03s
[INFO] running `Command { std: "docker" "inspect" "28ba571dfb8838ed5e2d5f577ac669c6b8b9f660470ac9852aef192ac8e1aa65", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "28ba571dfb8838ed5e2d5f577ac669c6b8b9f660470ac9852aef192ac8e1aa65", kill_on_drop: false }`
[INFO] [stdout] 28ba571dfb8838ed5e2d5f577ac669c6b8b9f660470ac9852aef192ac8e1aa65
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fb2ebe1032fc6cee4f554ac901f21e71d394ccee0967b309d2bd57135f010332
[INFO] running `Command { std: "docker" "start" "-a" "fb2ebe1032fc6cee4f554ac901f21e71d394ccee0967b309d2bd57135f010332", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/distance/chebyshev.rs:15:76
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn calc_distance(&self, a: &Vec<f64>, b: &Vec<f64>) -> Result<f64, Box<Error>> {
[INFO] [stdout]    |                                                                            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn calc_distance(&self, a: &Vec<f64>, b: &Vec<f64>) -> Result<f64, Box<dyn Error>> {
[INFO] [stdout]    |                                                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/classification/k_means.rs:51:17
[INFO] [stdout]    |
[INFO] [stdout] 51 |             let mut clusters = &mut self.clusters;
[INFO] [stdout]    |                 ----^^^^^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `k`, `data`, `clusters`, and `distance` are never read
[INFO] [stdout]   --> src/classification/k_means.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout]  9 | pub struct KMeans<D: Distance> {
[INFO] [stdout]    |            ------ fields in this struct
[INFO] [stdout] 10 |     k: usize,
[INFO] [stdout]    |     ^
[INFO] [stdout] 11 |     data: Vec<Vec<f64>>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 12 |     clusters: Vec<Cluster>,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 13 |     distance: D,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `cluster_to_centroids` are never used
[INFO] [stdout]   --> src/classification/k_means.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | impl<D: Distance> KMeans<D> {
[INFO] [stdout]    | --------------------------- associated items in this implementation
[INFO] [stdout] 17 |     fn new(data: Vec<Vec<f64>>, k: usize, distance: D) -> Result<Self, Box<dyn Error>> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 49 |     fn cluster_to_centroids(&mut self) -> Result<(), Box<dyn Error>> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `centroid` and `elements` are never read
[INFO] [stdout]   --> src/classification/k_means.rs:76:5
[INFO] [stdout]    |
[INFO] [stdout] 75 | struct Cluster {
[INFO] [stdout]    |        ------- fields in this struct
[INFO] [stdout] 76 |     centroid: usize,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 77 |     elements: Vec<usize>,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Cluster` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/classification/k_means.rs:81:8
[INFO] [stdout]    |
[INFO] [stdout] 80 | impl Cluster {
[INFO] [stdout]    | ------------ associated function in this implementation
[INFO] [stdout] 81 |     fn new(centroid: usize) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rsml v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]   --> src/classification/k_means.rs:91:9
[INFO] [stdout]    |
[INFO] [stdout] 91 |     use super::*;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/distance/chebyshev.rs:15:76
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn calc_distance(&self, a: &Vec<f64>, b: &Vec<f64>) -> Result<f64, Box<Error>> {
[INFO] [stdout]    |                                                                            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn calc_distance(&self, a: &Vec<f64>, b: &Vec<f64>) -> Result<f64, Box<dyn Error>> {
[INFO] [stdout]    |                                                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/classification/k_means.rs:51:17
[INFO] [stdout]    |
[INFO] [stdout] 51 |             let mut clusters = &mut self.clusters;
[INFO] [stdout]    |                 ----^^^^^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `k`, `data`, `clusters`, and `distance` are never read
[INFO] [stdout]   --> src/classification/k_means.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout]  9 | pub struct KMeans<D: Distance> {
[INFO] [stdout]    |            ------ fields in this struct
[INFO] [stdout] 10 |     k: usize,
[INFO] [stdout]    |     ^
[INFO] [stdout] 11 |     data: Vec<Vec<f64>>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 12 |     clusters: Vec<Cluster>,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 13 |     distance: D,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `cluster_to_centroids` are never used
[INFO] [stdout]   --> src/classification/k_means.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | impl<D: Distance> KMeans<D> {
[INFO] [stdout]    | --------------------------- associated items in this implementation
[INFO] [stdout] 17 |     fn new(data: Vec<Vec<f64>>, k: usize, distance: D) -> Result<Self, Box<dyn Error>> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 49 |     fn cluster_to_centroids(&mut self) -> Result<(), Box<dyn Error>> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `centroid` and `elements` are never read
[INFO] [stdout]   --> src/classification/k_means.rs:76:5
[INFO] [stdout]    |
[INFO] [stdout] 75 | struct Cluster {
[INFO] [stdout]    |        ------- fields in this struct
[INFO] [stdout] 76 |     centroid: usize,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 77 |     elements: Vec<usize>,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Cluster` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/classification/k_means.rs:81:8
[INFO] [stdout]    |
[INFO] [stdout] 80 | impl Cluster {
[INFO] [stdout]    | ------------ associated function in this implementation
[INFO] [stdout] 81 |     fn new(centroid: usize) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Generations` is never constructed
[INFO] [stdout]   --> src/population.rs:56:5
[INFO] [stdout]    |
[INFO] [stdout] 55 | pub enum PopulationGoal {
[INFO] [stdout]    |          -------------- variant in this enum
[INFO] [stdout] 56 |     Generations(u64),
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.61s
[INFO] running `Command { std: "docker" "inspect" "fb2ebe1032fc6cee4f554ac901f21e71d394ccee0967b309d2bd57135f010332", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb2ebe1032fc6cee4f554ac901f21e71d394ccee0967b309d2bd57135f010332", kill_on_drop: false }`
[INFO] [stdout] fb2ebe1032fc6cee4f554ac901f21e71d394ccee0967b309d2bd57135f010332
