[INFO] fetching crate simple_ml 0.1.11...
[INFO] checking simple_ml-0.1.11 against master#74e80468347471779be6060d8d7d6d04e98e467f for pr-72788
[INFO] extracting crate simple_ml 0.1.11 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate simple_ml 0.1.11 on toolchain 74e80468347471779be6060d8d7d6d04e98e467f
[INFO] running `"/workspace/cargo-home/bin/cargo" "+74e80468347471779be6060d8d7d6d04e98e467f" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate simple_ml 0.1.11
[INFO] finished tweaking crates.io crate simple_ml 0.1.11
[INFO] tweaked toml for crates.io crate simple_ml 0.1.11 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate crates.io crate simple_ml 0.1.11 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+74e80468347471779be6060d8d7d6d04e98e467f" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+74e80468347471779be6060d8d7d6d04e98e467f" "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] fe2615729e30f089fe3ed6a43762eea3259abbd1f81e1f0d44432b7a4c30be59
[INFO] running `"docker" "start" "-a" "fe2615729e30f089fe3ed6a43762eea3259abbd1f81e1f0d44432b7a4c30be59"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling libc v0.2.70
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]     Checking ppv-lite86 v0.2.8
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking libmath v0.2.1
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking simple_ml v0.1.11 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `Rng`
[INFO] [stderr]    --> src/lib.rs:686:28
[INFO] [stderr]     |
[INFO] [stderr] 686 |     use rand::{thread_rng, Rng};
[INFO] [stderr]     |                            ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the item `thread_rng` is imported redundantly
[INFO] [stderr]    --> src/lib.rs:686:16
[INFO] [stderr]     |
[INFO] [stderr] 2   | use rand::*;
[INFO] [stderr]     |     ------- the item `thread_rng` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 686 |     use rand::{thread_rng, Rng};
[INFO] [stderr]     |                ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the item `Rng` is imported redundantly
[INFO] [stderr]    --> src/lib.rs:686:28
[INFO] [stderr]     |
[INFO] [stderr] 2   | use rand::*;
[INFO] [stderr]     |     ------- the item `Rng` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 686 |     use rand::{thread_rng, Rng};
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Rng`
[INFO] [stderr]    --> src/lib.rs:686:28
[INFO] [stderr]     |
[INFO] [stderr] 686 |     use rand::{thread_rng, Rng};
[INFO] [stderr]     |                            ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the item `thread_rng` is imported redundantly
[INFO] [stderr]    --> src/lib.rs:686:16
[INFO] [stderr]     |
[INFO] [stderr] 2   | use rand::*;
[INFO] [stderr]     |     ------- the item `thread_rng` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 686 |     use rand::{thread_rng, Rng};
[INFO] [stderr]     |                ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the item `Rng` is imported redundantly
[INFO] [stderr]    --> src/lib.rs:686:28
[INFO] [stderr]     |
[INFO] [stderr] 2   | use rand::*;
[INFO] [stderr]     |     ------- the item `Rng` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 686 |     use rand::{thread_rng, Rng};
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `minus_step2`
[INFO] [stderr]    --> src/lib.rs:627:9
[INFO] [stderr]     |
[INFO] [stderr] 627 |     let minus_step2: Vec<Vec<f64>> = step2
[INFO] [stderr]     |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_minus_step2`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `minus_step2`
[INFO] [stderr]    --> src/lib.rs:627:9
[INFO] [stderr]     |
[INFO] [stderr] 627 |     let minus_step2: Vec<Vec<f64>> = step2
[INFO] [stderr]     |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_minus_step2`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `log_beta`
[INFO] [stderr]    --> src/lib.rs:650:9
[INFO] [stderr]     |
[INFO] [stderr] 650 |     let mut log_beta: Vec<Vec<f64>> = vec![];
[INFO] [stderr]     |         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_log_beta`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `b`
[INFO] [stderr]    --> src/lib.rs:651:9
[INFO] [stderr]     |
[INFO] [stderr] 651 |     let mut b: Vec<Vec<f64>> = vec![];
[INFO] [stderr]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n`
[INFO] [stderr]    --> src/lib.rs:761:10
[INFO] [stderr]     |
[INFO] [stderr] 761 |     for (n, i) in columns.iter().enumerate() {
[INFO] [stderr]     |          ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `learning_rate`
[INFO] [stderr]    --> src/lib.rs:717:5
[INFO] [stderr]     |
[INFO] [stderr] 717 |     learning_rate: f64,
[INFO] [stderr]     |     ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_learning_rate`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `coverage_rate`
[INFO] [stderr]    --> src/lib.rs:718:5
[INFO] [stderr]     |
[INFO] [stderr] 718 |     coverage_rate: f64,
[INFO] [stderr]     |     ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_coverage_rate`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `log_beta`
[INFO] [stderr]    --> src/lib.rs:650:9
[INFO] [stderr]     |
[INFO] [stderr] 650 |     let mut log_beta: Vec<Vec<f64>> = vec![];
[INFO] [stderr]     |         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_log_beta`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `b`
[INFO] [stderr]    --> src/lib.rs:651:9
[INFO] [stderr]     |
[INFO] [stderr] 651 |     let mut b: Vec<Vec<f64>> = vec![];
[INFO] [stderr]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n`
[INFO] [stderr]    --> src/lib.rs:761:10
[INFO] [stderr]     |
[INFO] [stderr] 761 |     for (n, i) in columns.iter().enumerate() {
[INFO] [stderr]     |          ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `learning_rate`
[INFO] [stderr]    --> src/lib.rs:717:5
[INFO] [stderr]     |
[INFO] [stderr] 717 |     learning_rate: f64,
[INFO] [stderr]     |     ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_learning_rate`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `coverage_rate`
[INFO] [stderr]    --> src/lib.rs:718:5
[INFO] [stderr]     |
[INFO] [stderr] 718 |     coverage_rate: f64,
[INFO] [stderr]     |     ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_coverage_rate`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:632:9
[INFO] [stderr]     |
[INFO] [stderr] 632 |     let mut output = element_wise_matrix_operation(&minus_step1, &step2, "Sub");
[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:650:9
[INFO] [stderr]     |
[INFO] [stderr] 650 |     let mut log_beta: Vec<Vec<f64>> = vec![];
[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:632:9
[INFO] [stderr]     |
[INFO] [stderr] 632 |     let mut output = element_wise_matrix_operation(&minus_step1, &step2, "Sub");
[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:650:9
[INFO] [stderr]     |
[INFO] [stderr] 650 |     let mut log_beta: Vec<Vec<f64>> = vec![];
[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:651:9
[INFO] [stderr]     |
[INFO] [stderr] 651 |     let mut b: Vec<Vec<f64>> = vec![];
[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:651:9
[INFO] [stderr]     |
[INFO] [stderr] 651 |     let mut b: Vec<Vec<f64>> = vec![];
[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:762:13
[INFO] [stderr]     |
[INFO] [stderr] 762 |         let mut v = vec![0.; feature_length];
[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:762:13
[INFO] [stderr]     |
[INFO] [stderr] 762 |         let mut v = vec![0.; feature_length];
[INFO] [stderr]     |             ----^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `first_calc_T` should have a snake case name
[INFO] [stderr]    --> src/lib.rs:543:9
[INFO] [stderr]     |
[INFO] [stderr] 543 |     let first_calc_T = transpose(&first_calc);
[INFO] [stderr]     |         ^^^^^^^^^^^^ help: convert the identifier to snake case: `first_calc_t`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `X` should have a snake case name
[INFO] [stderr]    --> src/lib.rs:544:13
[INFO] [stderr]     |
[INFO] [stderr] 544 |     let mut X = vec![];
[INFO] [stderr]     |             ^ help: convert the identifier to snake case (notice the capitalization): `x`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `first_calc_T` should have a snake case name
[INFO] [stderr]    --> src/lib.rs:543:9
[INFO] [stderr]     |
[INFO] [stderr] 543 |     let first_calc_T = transpose(&first_calc);
[INFO] [stderr]     |         ^^^^^^^^^^^^ help: convert the identifier to snake case: `first_calc_t`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `X` should have a snake case name
[INFO] [stderr]    --> src/lib.rs:544:13
[INFO] [stderr]     |
[INFO] [stderr] 544 |     let mut X = vec![];
[INFO] [stderr]     |             ^ help: convert the identifier to snake case (notice the capitalization): `x`
[INFO] [stderr] 
[INFO] [stderr] warning: 15 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 15 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Rng`
[INFO] [stderr]    --> src/lib_ml.rs:546:28
[INFO] [stderr]     |
[INFO] [stderr] 546 |     use rand::{thread_rng, Rng};
[INFO] [stderr]     |                            ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Rng`
[INFO] [stderr]    --> src/lib_ml.rs:546:28
[INFO] [stderr]     |
[INFO] [stderr] 546 |     use rand::{thread_rng, Rng};
[INFO] [stderr]     |                            ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `minus_step2`
[INFO] [stderr]    --> src/lib_ml.rs:487:9
[INFO] [stderr]     |
[INFO] [stderr] 487 |     let minus_step2: Vec<Vec<f64>> = step2
[INFO] [stderr]     |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_minus_step2`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `log_beta`
[INFO] [stderr]    --> src/lib_ml.rs:510:9
[INFO] [stderr]     |
[INFO] [stderr] 510 |     let mut log_beta: Vec<Vec<f64>> = vec![];
[INFO] [stderr]     |         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_log_beta`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `b`
[INFO] [stderr]    --> src/lib_ml.rs:511:9
[INFO] [stderr]     |
[INFO] [stderr] 511 |     let mut b: Vec<Vec<f64>> = vec![];
[INFO] [stderr]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n`
[INFO] [stderr]    --> src/lib_ml.rs:621:10
[INFO] [stderr]     |
[INFO] [stderr] 621 |     for (n, i) in columns.iter().enumerate() {
[INFO] [stderr]     |          ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `learning_rate`
[INFO] [stderr]    --> src/lib_ml.rs:577:5
[INFO] [stderr]     |
[INFO] [stderr] 577 |     learning_rate: f64,
[INFO] [stderr]     |     ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_learning_rate`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `coverage_rate`
[INFO] [stderr]    --> src/lib_ml.rs:578:5
[INFO] [stderr]     |
[INFO] [stderr] 578 |     coverage_rate: f64,
[INFO] [stderr]     |     ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_coverage_rate`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `minus_step2`
[INFO] [stderr]    --> src/lib_ml.rs:487:9
[INFO] [stderr]     |
[INFO] [stderr] 487 |     let minus_step2: Vec<Vec<f64>> = step2
[INFO] [stderr]     |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_minus_step2`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `log_beta`
[INFO] [stderr]    --> src/lib_ml.rs:510:9
[INFO] [stderr]     |
[INFO] [stderr] 510 |     let mut log_beta: Vec<Vec<f64>> = vec![];
[INFO] [stderr]     |         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_log_beta`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `b`
[INFO] [stderr]    --> src/lib_ml.rs:511:9
[INFO] [stderr]     |
[INFO] [stderr] 511 |     let mut b: Vec<Vec<f64>> = vec![];
[INFO] [stderr]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n`
[INFO] [stderr]    --> src/lib_ml.rs:621:10
[INFO] [stderr]     |
[INFO] [stderr] 621 |     for (n, i) in columns.iter().enumerate() {
[INFO] [stderr]     |          ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `learning_rate`
[INFO] [stderr]    --> src/lib_ml.rs:577:5
[INFO] [stderr]     |
[INFO] [stderr] 577 |     learning_rate: f64,
[INFO] [stderr]     |     ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_learning_rate`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `coverage_rate`
[INFO] [stderr]    --> src/lib_ml.rs:578:5
[INFO] [stderr]     |
[INFO] [stderr] 578 |     coverage_rate: f64,
[INFO] [stderr]     |     ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_coverage_rate`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib_ml.rs:492:9
[INFO] [stderr]     |
[INFO] [stderr] 492 |     let mut output = element_wise_matrix_operation(&minus_step1, &step2, "Sub");
[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_ml.rs:510:9
[INFO] [stderr]     |
[INFO] [stderr] 510 |     let mut log_beta: Vec<Vec<f64>> = vec![];
[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_ml.rs:511:9
[INFO] [stderr]     |
[INFO] [stderr] 511 |     let mut b: Vec<Vec<f64>> = vec![];
[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_ml.rs:622:13
[INFO] [stderr]     |
[INFO] [stderr] 622 |         let mut v = vec![0.; feature_length];
[INFO] [stderr]     |             ----^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `value_counts`
[INFO] [stderr]    --> src/lib_matrix.rs:339:8
[INFO] [stderr]     |
[INFO] [stderr] 339 | pub fn value_counts<T>(list: &Vec<T>) -> HashMap<T, u32>
[INFO] [stderr]     |        ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `matrix_vector_product_f`
[INFO] [stderr]    --> src/lib_matrix.rs:408:8
[INFO] [stderr]     |
[INFO] [stderr] 408 | pub fn matrix_vector_product_f(matrix: &Vec<Vec<f64>>, vector: &Vec<f64>) -> Vec<f64> {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `convert_and_impute`
[INFO] [stderr]    --> src/lib_ml.rs:282:8
[INFO] [stderr]     |
[INFO] [stderr] 282 | pub fn convert_and_impute<U>(
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `impute_string`
[INFO] [stderr]    --> src/lib_ml.rs:327:8
[INFO] [stderr]     |
[INFO] [stderr] 327 | pub fn impute_string<'a>(list: &'a mut Vec<String>, impute_with: &'a str) -> Vec<&'a str> {
[INFO] [stderr]     |        ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `convert_string_categorical`
[INFO] [stderr]    --> src/lib_ml.rs:343:8
[INFO] [stderr]     |
[INFO] [stderr] 343 | pub fn convert_string_categorical<T>(list: &Vec<T>, extra_class: bool) -> Vec<f64>
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `logistic_predict`
[INFO] [stderr]    --> src/lib_ml.rs:534:8
[INFO] [stderr]     |
[INFO] [stderr] 534 | pub fn logistic_predict(matrix1: &Vec<Vec<f64>>, beta: &Vec<Vec<f64>>) -> Vec<Vec<f64>> {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `randomize`
[INFO] [stderr]    --> src/lib_ml.rs:544:8
[INFO] [stderr]     |
[INFO] [stderr] 544 | pub fn randomize(rows: &Vec<f64>) -> Vec<f64> {
[INFO] [stderr]     |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `train_test_split`
[INFO] [stderr]    --> src/lib_ml.rs:560:8
[INFO] [stderr]     |
[INFO] [stderr] 560 | pub fn train_test_split(input: &Vec<f64>, percentage: f64) -> (Vec<f64>, Vec<f64>) {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `binary_logistic_regression`
[INFO] [stderr]    --> src/lib_ml.rs:573:8
[INFO] [stderr]     |
[INFO] [stderr] 573 | pub fn binary_logistic_regression(
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable `first_calc_T` should have a snake case name
[INFO] [stderr]    --> src/lib_ml.rs:403:9
[INFO] [stderr]     |
[INFO] [stderr] 403 |     let first_calc_T = transpose(&first_calc);
[INFO] [stderr]     |         ^^^^^^^^^^^^ help: convert the identifier to snake case: `first_calc_t`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `X` should have a snake case name
[INFO] [stderr]    --> src/lib_ml.rs:404:13
[INFO] [stderr]     |
[INFO] [stderr] 404 |     let mut X = vec![];
[INFO] [stderr]     |             ^ help: convert the identifier to snake case (notice the capitalization): `x`
[INFO] [stderr] 
[INFO] [stderr] warning: 22 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib_ml.rs:492:9
[INFO] [stderr]     |
[INFO] [stderr] 492 |     let mut output = element_wise_matrix_operation(&minus_step1, &step2, "Sub");
[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_ml.rs:510:9
[INFO] [stderr]     |
[INFO] [stderr] 510 |     let mut log_beta: Vec<Vec<f64>> = vec![];
[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_ml.rs:511:9
[INFO] [stderr]     |
[INFO] [stderr] 511 |     let mut b: Vec<Vec<f64>> = vec![];
[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_ml.rs:622:13
[INFO] [stderr]     |
[INFO] [stderr] 622 |         let mut v = vec![0.; feature_length];
[INFO] [stderr]     |             ----^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `value_counts`
[INFO] [stderr]    --> src/lib_matrix.rs:339:8
[INFO] [stderr]     |
[INFO] [stderr] 339 | pub fn value_counts<T>(list: &Vec<T>) -> HashMap<T, u32>
[INFO] [stderr]     |        ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `matrix_vector_product_f`
[INFO] [stderr]    --> src/lib_matrix.rs:408:8
[INFO] [stderr]     |
[INFO] [stderr] 408 | pub fn matrix_vector_product_f(matrix: &Vec<Vec<f64>>, vector: &Vec<f64>) -> Vec<f64> {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `convert_and_impute`
[INFO] [stderr]    --> src/lib_ml.rs:282:8
[INFO] [stderr]     |
[INFO] [stderr] 282 | pub fn convert_and_impute<U>(
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `impute_string`
[INFO] [stderr]    --> src/lib_ml.rs:327:8
[INFO] [stderr]     |
[INFO] [stderr] 327 | pub fn impute_string<'a>(list: &'a mut Vec<String>, impute_with: &'a str) -> Vec<&'a str> {
[INFO] [stderr]     |        ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `convert_string_categorical`
[INFO] [stderr]    --> src/lib_ml.rs:343:8
[INFO] [stderr]     |
[INFO] [stderr] 343 | pub fn convert_string_categorical<T>(list: &Vec<T>, extra_class: bool) -> Vec<f64>
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `logistic_predict`
[INFO] [stderr]    --> src/lib_ml.rs:534:8
[INFO] [stderr]     |
[INFO] [stderr] 534 | pub fn logistic_predict(matrix1: &Vec<Vec<f64>>, beta: &Vec<Vec<f64>>) -> Vec<Vec<f64>> {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `randomize`
[INFO] [stderr]    --> src/lib_ml.rs:544:8
[INFO] [stderr]     |
[INFO] [stderr] 544 | pub fn randomize(rows: &Vec<f64>) -> Vec<f64> {
[INFO] [stderr]     |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `train_test_split`
[INFO] [stderr]    --> src/lib_ml.rs:560:8
[INFO] [stderr]     |
[INFO] [stderr] 560 | pub fn train_test_split(input: &Vec<f64>, percentage: f64) -> (Vec<f64>, Vec<f64>) {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `binary_logistic_regression`
[INFO] [stderr]    --> src/lib_ml.rs:573:8
[INFO] [stderr]     |
[INFO] [stderr] 573 | pub fn binary_logistic_regression(
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable `first_calc_T` should have a snake case name
[INFO] [stderr]    --> src/lib_ml.rs:403:9
[INFO] [stderr]     |
[INFO] [stderr] 403 |     let first_calc_T = transpose(&first_calc);
[INFO] [stderr]     |         ^^^^^^^^^^^^ help: convert the identifier to snake case: `first_calc_t`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `X` should have a snake case name
[INFO] [stderr]    --> src/lib_ml.rs:404:13
[INFO] [stderr]     |
[INFO] [stderr] 404 |     let mut X = vec![];
[INFO] [stderr]     |             ^ help: convert the identifier to snake case (notice the capitalization): `x`
[INFO] [stderr] 
[INFO] [stderr] warning: 22 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.41s
[INFO] running `"docker" "inspect" "fe2615729e30f089fe3ed6a43762eea3259abbd1f81e1f0d44432b7a4c30be59"`
[INFO] running `"docker" "rm" "-f" "fe2615729e30f089fe3ed6a43762eea3259abbd1f81e1f0d44432b7a4c30be59"`
[INFO] [stdout] fe2615729e30f089fe3ed6a43762eea3259abbd1f81e1f0d44432b7a4c30be59