[INFO] cloning repository https://github.com/FRRitsma/polars_trees
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/FRRitsma/polars_trees" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFRRitsma%2Fpolars_trees", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFRRitsma%2Fpolars_trees'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] aa705e8eedee92745e8b5a52b67d0c71a28baf9c
[INFO] checking FRRitsma/polars_trees against master#8202d110516c6bd87cee375e9a9b774db499015c for pr-149596
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFRRitsma%2Fpolars_trees" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/FRRitsma/polars_trees
[INFO] finished tweaking git repo https://github.com/FRRitsma/polars_trees
[INFO] tweaked toml for git repo https://github.com/FRRitsma/polars_trees written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/FRRitsma/polars_trees on toolchain 8202d110516c6bd87cee375e9a9b774db499015c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8202d110516c6bd87cee375e9a9b774db499015c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/FRRitsma/polars_trees 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" "+8202d110516c6bd87cee375e9a9b774db499015c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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_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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+8202d110516c6bd87cee375e9a9b774db499015c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8eb9c8a95aa8ce2f8c004fe9ec86164de72f030b80e779d6ae524bc7adf3364f
[INFO] running `Command { std: "docker" "start" "-a" "8eb9c8a95aa8ce2f8c004fe9ec86164de72f030b80e779d6ae524bc7adf3364f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8eb9c8a95aa8ce2f8c004fe9ec86164de72f030b80e779d6ae524bc7adf3364f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8eb9c8a95aa8ce2f8c004fe9ec86164de72f030b80e779d6ae524bc7adf3364f", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+8202d110516c6bd87cee375e9a9b774db499015c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1f7bc7a2131fc07ea91a8852006824f4de13bd792b56b5d3f720c5afc2a9049b
[INFO] running `Command { std: "docker" "start" "-a" "1f7bc7a2131fc07ea91a8852006824f4de13bd792b56b5d3f720c5afc2a9049b", kill_on_drop: false }`
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[INFO] [stderr]    Compiling serde_derive v1.0.219
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[INFO] [stderr]     Checking anstyle v1.0.10
[INFO] [stderr]     Checking recursive v0.1.1
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[INFO] [stderr]     Checking compact_str v0.8.1
[INFO] [stderr]     Checking bytes v1.10.1
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[INFO] [stderr]     Checking indexmap v2.9.0
[INFO] [stderr]     Checking polars-error v0.46.0
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[INFO] [stderr]     Checking trees v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `sort_type`
[INFO] [stdout]  --> src/gini_impurity/gini_impurity.rs:8:66
[INFO] [stdout]   |
[INFO] [stdout] 8 | use crate::gini_impurity::{categorical_columns, ordinal_columns, sort_type};
[INFO] [stdout]   |                                                                  ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `polars_core::prelude::NamedFrom`
[INFO] [stdout]  --> src/old_preprocessing.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use polars_core::prelude::NamedFrom;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::error::Error`
[INFO] [stdout]  --> src/old_preprocessing.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::error::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `get_optimal_gini_impurity_for_column`
[INFO] [stdout]  --> src/gini_impurity/categorical_columns.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     get_optimal_gini_impurity_for_column, normalize_gini_per_group, pre_process_for_gini,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::test_utils::assert_single_row_df_equal`
[INFO] [stdout]  --> src/gini_impurity/categorical_columns.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use crate::test_utils::assert_single_row_df_equal;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `polars_core::df`
[INFO] [stdout]   --> src/gini_impurity/categorical_columns.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use polars_core::df;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sort_type`
[INFO] [stdout]  --> src/gini_impurity/gini_impurity.rs:8:66
[INFO] [stdout]   |
[INFO] [stdout] 8 | use crate::gini_impurity::{categorical_columns, ordinal_columns, sort_type};
[INFO] [stdout]   |                                                                  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `polars_core::prelude::NamedFrom`
[INFO] [stdout]  --> src/old_preprocessing.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use polars_core::prelude::NamedFrom;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::error::Error`
[INFO] [stdout]  --> src/old_preprocessing.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::error::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `PREDICTED_LABEL_COL` is never used
[INFO] [stdout]   --> src/classification_tree.rs:18:7
[INFO] [stdout]    |
[INFO] [stdout] 18 | const PREDICTED_LABEL_COL: &str = "PREDICTED_LABEL";
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `INDEX_COL` is never used
[INFO] [stdout]   --> src/classification_tree.rs:19:7
[INFO] [stdout]    |
[INFO] [stdout] 19 | const INDEX_COL: &str = "INDEX";
[INFO] [stdout]    |       ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_size_of_left_and_right` is never used
[INFO] [stdout]   --> src/classification_tree.rs:21:4
[INFO] [stdout]    |
[INFO] [stdout] 21 | fn get_size_of_left_and_right(collected: &DataFrame) -> Result<(u128, u128), Box<dyn Error>> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_split_predicate` is never used
[INFO] [stdout]   --> src/classification_tree.rs:35:4
[INFO] [stdout]    |
[INFO] [stdout] 35 | fn get_split_predicate(collected: DataFrame) -> Result<Expr, Box<dyn Error>> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ClassificationTree` is never constructed
[INFO] [stdout]   --> src/classification_tree.rs:64:8
[INFO] [stdout]    |
[INFO] [stdout] 64 | struct ClassificationTree {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `NodePosition` is never used
[INFO] [stdout]   --> src/classification_tree.rs:79:6
[INFO] [stdout]    |
[INFO] [stdout] 79 | enum NodePosition {
[INFO] [stdout]    |      ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_most_common_label` is never used
[INFO] [stdout]   --> src/classification_tree.rs:84:4
[INFO] [stdout]    |
[INFO] [stdout] 84 | fn get_most_common_label(lf: &LazyFrame) -> Result<String, Box<dyn Error>> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> src/classification_tree.rs:100:12
[INFO] [stdout]     |
[INFO] [stdout]  99 | impl ClassificationTree {
[INFO] [stdout]     | ----------------------- associated items in this implementation
[INFO] [stdout] 100 |     pub fn default() -> Self {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 112 |     fn spawn_child(&mut self, node_position: NodePosition) {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 143 |     pub fn fit(&mut self, lf: LazyFrame, target_column: &str) -> Result<(), Box<dyn Error>> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 150 |     fn private_fit(&mut self, lf: LazyFrame) -> Result<(), Box<dyn Error>> {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 202 |     pub fn predict(&self, lf: &LazyFrame) -> LazyFrame {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 216 |     fn private_predict(&self, lf: LazyFrame) -> LazyFrame {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 236 |     fn split_lazyframe_left_right(&self, lf: LazyFrame) -> (LazyFrame, LazyFrame) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `TARGET_COLUMN` is never used
[INFO] [stdout]  --> src/constants.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub const TARGET_COLUMN: &str = "TARGET_COLUMN";
[INFO] [stdout]   |           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `BinaryTree` is never used
[INFO] [stdout]  --> src/display_tree.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub trait BinaryTree {
[INFO] [stdout]   |           ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DisplayTree` is never constructed
[INFO] [stdout]   --> src/display_tree.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct DisplayTree {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> src/display_tree.rs:55:8
[INFO] [stdout]     |
[INFO] [stdout]  54 | impl DisplayTree {
[INFO] [stdout]     | ---------------- associated items in this implementation
[INFO] [stdout]  55 |     fn new(expression: String, depth: u8) -> Self {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout]  67 |     pub fn fit_display_tree<T: BinaryTree + ?Sized>(input: &T) -> Self {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  87 |     fn padding(&self) -> usize {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  93 |     fn mid_point(&self) -> usize {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  97 |     fn format_tree(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 104 |     fn get_max_depth(&self) -> u8 {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 113 |     fn add_missing_nodes(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 146 |     pub fn set_column_width(&mut self) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 184 |     pub fn assign_horizontal_order(&mut self) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 208 |     fn assign_offset(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 240 |     pub fn raw_display(&self) -> String {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 244 |     pub fn raw_display_len(&self) -> usize {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 248 |     pub fn padded_display(&self) -> String {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 260 |     pub fn all_nodes(&self) -> Vec<&DisplayTree> {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 266 |     fn collect_nodes<'a>(&'a self, vec: &mut Vec<&'a DisplayTree>) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `EmptyTree` is never constructed
[INFO] [stdout]  --> src/empty_tree.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct EmptyTree {
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/empty_tree.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 23 | impl EmptyTree {
[INFO] [stdout]    | -------------- associated function in this implementation
[INFO] [stdout] 24 |     pub fn new(string: String) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `rename_filler_string_full_lazyframe` is never used
[INFO] [stdout]  --> src/filler_strings.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn rename_filler_string_full_lazyframe(
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `rename_filler_string_single_column` is never used
[INFO] [stdout]   --> src/filler_strings.rs:24:4
[INFO] [stdout]    |
[INFO] [stdout] 24 | fn rename_filler_string_single_column(
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `group_by_for_gini_impurity_categorical` is never used
[INFO] [stdout]   --> src/gini_impurity/categorical_columns.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub fn group_by_for_gini_impurity_categorical(lf: &LazyFrame) -> LazyFrame {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_optimal_gini_impurity_for_categorical_column` is never used
[INFO] [stdout]   --> src/gini_impurity/categorical_columns.rs:40:8
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub fn get_optimal_gini_impurity_for_categorical_column(
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `QUANTILES` is never used
[INFO] [stdout]  --> src/gini_impurity/constants.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub const QUANTILES: [f64; 8] = [0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.9];
[INFO] [stdout]   |           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `COUNT_LEFT_COL` is never used
[INFO] [stdout]  --> src/gini_impurity/constants.rs:2:11
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub const COUNT_LEFT_COL: &str = "count_LEFT";
[INFO] [stdout]   |           ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `COUNT_RIGHT_COL` is never used
[INFO] [stdout]  --> src/gini_impurity/constants.rs:3:11
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub const COUNT_RIGHT_COL: &str = "count_RIGHT";
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `GINI_IMPURITY_LEFT_GROUP_COL` is never used
[INFO] [stdout]  --> src/gini_impurity/constants.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub const GINI_IMPURITY_LEFT_GROUP_COL: &str = "gini_LEFT";
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `GINI_IMPURITY_RIGHT_GROUP_COL` is never used
[INFO] [stdout]  --> src/gini_impurity/constants.rs:5:11
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub const GINI_IMPURITY_RIGHT_GROUP_COL: &str = "gini_RIGHT";
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `TOTAL_LEFT_GROUP_COL` is never used
[INFO] [stdout]  --> src/gini_impurity/constants.rs:6:11
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub const TOTAL_LEFT_GROUP_COL: &str = "total_LEFT_group";
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `TOTAL_RIGHT_GROUP_COL` is never used
[INFO] [stdout]  --> src/gini_impurity/constants.rs:7:11
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub const TOTAL_RIGHT_GROUP_COL: &str = "total_RIGHT_group";
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `FEATURE_COLUMN_NAME` is never used
[INFO] [stdout]  --> src/gini_impurity/constants.rs:8:11
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub const FEATURE_COLUMN_NAME: &str = "FEATURE_COLUMN_NAME";
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SORT_TYPE_COL` is never used
[INFO] [stdout]  --> src/gini_impurity/constants.rs:9:11
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub const SORT_TYPE_COL: &str = "SORT_TYPE";
[INFO] [stdout]   |           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `TEMP_COLUMN_ORDINAL` is never used
[INFO] [stdout]   --> src/gini_impurity/constants.rs:10:11
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub const TEMP_COLUMN_ORDINAL: &str = "temp_ordinal";
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SELECTION_COLUMN` is never used
[INFO] [stdout]   --> src/gini_impurity/constants.rs:11:11
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub const SELECTION_COLUMN: &str = "SELECTION_COLUMN";
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NORMALIZED_CHILD_GINI` is never used
[INFO] [stdout]   --> src/gini_impurity/constants.rs:12:18
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub(crate) const NORMALIZED_CHILD_GINI: &str = "NORMALIZED_CHILD_GINI";
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `add_zero_count` is never used
[INFO] [stdout]   --> src/gini_impurity/gini_impurity.rs:17:15
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub(crate) fn add_zero_count(
[INFO] [stdout]    |               ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_optimal_gini_impurity_for_column` is never used
[INFO] [stdout]   --> src/gini_impurity/gini_impurity.rs:53:15
[INFO] [stdout]    |
[INFO] [stdout] 53 | pub(crate) fn get_optimal_gini_impurity_for_column(
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `normalize_gini_per_group` is never used
[INFO] [stdout]   --> src/gini_impurity/gini_impurity.rs:74:15
[INFO] [stdout]    |
[INFO] [stdout] 74 | pub(crate) fn normalize_gini_per_group(grouped_lf: &LazyFrame, gini_lf: &LazyFrame) -> LazyFrame {
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `compute_gini_per_feature` is never used
[INFO] [stdout]    --> src/gini_impurity/gini_impurity.rs:103:15
[INFO] [stdout]     |
[INFO] [stdout] 103 | pub(crate) fn compute_gini_per_feature(grouped_lf: &LazyFrame) -> LazyFrame {
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `add_totals_of_in_out_group` is never used
[INFO] [stdout]    --> src/gini_impurity/gini_impurity.rs:132:15
[INFO] [stdout]     |
[INFO] [stdout] 132 | pub(crate) fn add_totals_of_in_out_group(grouped_lf: &LazyFrame) -> LazyFrame {
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `pre_process_for_gini` is never used
[INFO] [stdout]    --> src/gini_impurity/gini_impurity.rs:159:15
[INFO] [stdout]     |
[INFO] [stdout] 159 | pub(crate) fn pre_process_for_gini(
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_unique_combinations` is never used
[INFO] [stdout]    --> src/gini_impurity/gini_impurity.rs:178:4
[INFO] [stdout]     |
[INFO] [stdout] 178 | fn get_unique_combinations(column_1: &str, column_2: &str, lf: &LazyFrame) -> LazyFrame {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_gini_impurity_for_all_columns` is never used
[INFO] [stdout]    --> src/gini_impurity/gini_impurity.rs:193:8
[INFO] [stdout]     |
[INFO] [stdout] 193 | pub fn get_gini_impurity_for_all_columns(lf: LazyFrame) -> Result<LazyFrame, Box<dyn Error>> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `extract_best_feature` is never used
[INFO] [stdout]    --> src/gini_impurity/gini_impurity.rs:352:15
[INFO] [stdout]     |
[INFO] [stdout] 352 | pub(crate) fn extract_best_feature(normalized_gini_lf: LazyFrame) -> LazyFrame {
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_optimal_gini_impurity_for_ordinal_column` is never used
[INFO] [stdout]   --> src/gini_impurity/ordinal_columns.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub fn get_optimal_gini_impurity_for_ordinal_column(
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `group_by_for_single_quantile` is never used
[INFO] [stdout]   --> src/gini_impurity/ordinal_columns.rs:47:4
[INFO] [stdout]    |
[INFO] [stdout] 47 | fn group_by_for_single_quantile(lf: &LazyFrame, feature_column: &str, quantile: f64) -> LazyFrame {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `group_by_for_ordinal_inner` is never used
[INFO] [stdout]   --> src/gini_impurity/ordinal_columns.rs:66:4
[INFO] [stdout]    |
[INFO] [stdout] 66 | fn group_by_for_ordinal_inner(lf: &LazyFrame) -> LazyFrame {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `SortType` is never used
[INFO] [stdout]   --> src/gini_impurity/sort_type.rs:10:10
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub enum SortType {
[INFO] [stdout]    |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `from_str` and `as_str` are never used
[INFO] [stdout]   --> src/gini_impurity/sort_type.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl SortType {
[INFO] [stdout]    | ------------- associated items in this implementation
[INFO] [stdout] 16 |     pub fn from_str(string: &str) -> Self {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 26 |     pub fn as_str(&self) -> &'static str {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_sort_type_for_dtype` is never used
[INFO] [stdout]   --> src/gini_impurity/sort_type.rs:34:8
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub fn get_sort_type_for_dtype(dtype: &DataType) -> SortType {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `REDUNDANT_STRING_VALUE` is never used
[INFO] [stdout]   --> src/old_preprocessing.rs:10:11
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub const REDUNDANT_STRING_VALUE: &str = "FILLER_STRING";
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `pre_process_dataframe` is never used
[INFO] [stdout]   --> src/old_preprocessing.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub fn pre_process_dataframe(lf: LazyFrame, settings: Settings, target_column: &str) -> LazyFrame {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Settings` is never constructed
[INFO] [stdout]  --> src/settings.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Settings {
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]   --> src/settings.rs:9:12
[INFO] [stdout]    |
[INFO] [stdout]  8 | impl Settings {
[INFO] [stdout]    | ------------- associated items in this implementation
[INFO] [stdout]  9 |     pub fn new(max_depth: u8, min_leave_size: u128, max_cardinality: u8) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 17 |     pub fn default() -> Self {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 21 |     pub fn set_max_depth(&mut self, max_depth: u8) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 25 |     pub fn get_max_depth(&self) -> u8 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 29 |     pub fn get_min_leave_size(&self) -> u128 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 33 |     pub fn set_min_leave_size(&mut self, min_leave_size: u128) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 37 |     pub fn get_max_cardinality(&self) -> u8 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `FILE_PATH` is never used
[INFO] [stdout]  --> src/test_utils.rs:9:11
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub const FILE_PATH: &str = "Titanic-Dataset.csv";
[INFO] [stdout]   |           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `TITANIC_TARGET_COLUMN` is never used
[INFO] [stdout]   --> src/test_utils.rs:10:11
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub const TITANIC_TARGET_COLUMN: &str = "Survived";
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_raw_test_dataframe` is never used
[INFO] [stdout]   --> src/test_utils.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub fn get_raw_test_dataframe() -> LazyFrame {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_preprocessed_test_dataframe` is never used
[INFO] [stdout]   --> src/test_utils.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub fn get_preprocessed_test_dataframe() -> LazyFrame {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `assert_single_row_df_equal` is never used
[INFO] [stdout]   --> src/test_utils.rs:26:8
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub fn assert_single_row_df_equal(
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `polars_core::utils::arrow::io::iterator::StreamingIterator`
[INFO] [stdout]    --> src/gini_impurity/gini_impurity.rs:229:9
[INFO] [stdout]     |
[INFO] [stdout] 229 |     use polars_core::utils::arrow::io::iterator::StreamingIterator;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/classification_tree.rs:304:13
[INFO] [stdout]     |
[INFO] [stdout] 304 |         let mut lf = get_raw_test_dataframe();
[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: variable does not need to be mutable
[INFO] [stdout]    --> src/classification_tree.rs:330:13
[INFO] [stdout]     |
[INFO] [stdout] 330 |         let mut lf = get_raw_test_dataframe();
[INFO] [stdout]     |             ----^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/classification_tree.rs:385:13
[INFO] [stdout]     |
[INFO] [stdout] 385 |         let mut lf = get_raw_test_dataframe();
[INFO] [stdout]     |             ----^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `mid_point` is never used
[INFO] [stdout]   --> src/display_tree.rs:93:8
[INFO] [stdout]    |
[INFO] [stdout] 54 | impl DisplayTree {
[INFO] [stdout]    | ---------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 93 |     fn mid_point(&self) -> usize {
[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 1m 36s
[INFO] running `Command { std: "docker" "inspect" "1f7bc7a2131fc07ea91a8852006824f4de13bd792b56b5d3f720c5afc2a9049b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f7bc7a2131fc07ea91a8852006824f4de13bd792b56b5d3f720c5afc2a9049b", kill_on_drop: false }`
[INFO] [stdout] 1f7bc7a2131fc07ea91a8852006824f4de13bd792b56b5d3f720c5afc2a9049b
