[INFO] fetching crate ferrumDF 0.1.1...
[INFO] testing ferrumDF-0.1.1 against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-7
[INFO] extracting crate ferrumDF 0.1.1 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate ferrumDF 0.1.1
[INFO] finished tweaking crates.io crate ferrumDF 0.1.1
[INFO] tweaked toml for crates.io crate ferrumDF 0.1.1 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate ferrumDF 0.1.1 on toolchain c2e32f1c9652b13ed99608599c1e855462f421f3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate ferrumDF 0.1.1 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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a721212d6ffc8c67dffa87588422ad74c5828ab754e883d9de6456766929d770
[INFO] running `Command { std: "docker" "start" "-a" "a721212d6ffc8c67dffa87588422ad74c5828ab754e883d9de6456766929d770", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a721212d6ffc8c67dffa87588422ad74c5828ab754e883d9de6456766929d770", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a721212d6ffc8c67dffa87588422ad74c5828ab754e883d9de6456766929d770", kill_on_drop: false }`
[INFO] [stdout] a721212d6ffc8c67dffa87588422ad74c5828ab754e883d9de6456766929d770
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2e7e89bd83bc9070465532b1bfbf3a3dbb1128f927f16c64f9cef938a743d34a
[INFO] running `Command { std: "docker" "start" "-a" "2e7e89bd83bc9070465532b1bfbf3a3dbb1128f927f16c64f9cef938a743d34a", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.16
[INFO] [stderr]    Compiling libc v0.2.149
[INFO] [stderr]    Compiling scopeguard v1.2.0
[INFO] [stderr]    Compiling serde v1.0.189
[INFO] [stderr]    Compiling rayon-core v1.12.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling memchr v2.6.4
[INFO] [stderr]    Compiling either v1.9.0
[INFO] [stderr]    Compiling ryu v1.0.15
[INFO] [stderr]    Compiling itoa v1.0.9
[INFO] [stderr]    Compiling memoffset v0.9.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.15
[INFO] [stderr]    Compiling getrandom v0.2.10
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling csv-core v0.1.11
[INFO] [stderr]    Compiling crossbeam-deque v0.8.3
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling rayon v1.8.0
[INFO] [stderr]    Compiling csv v1.3.0
[INFO] [stderr]    Compiling ferrumDF v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `IntoParallelRefIterator`, `ParallelBridge`, `iter::plumbing::Folder`, and `string`
[INFO] [stdout]  --> src/data_frame/data_frame.rs:5:69
[INFO] [stdout]   |
[INFO] [stdout] 5 | ...rallelIterator, ParallelBridge, IntoParallelRefIterator, IndexedParallelIterator}, string, iter::plumbing::Folder};
[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 `train_test_split` should have an upper camel case name
[INFO] [stdout]   --> src/data_frame/data_frame.rs:24:11
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub trait train_test_split {
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `TrainTestSplit`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_camel_case_types)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/data_frame/data_frame.rs:82:24
[INFO] [stdout]    |
[INFO] [stdout] 82 |                     if (*value < min) {
[INFO] [stdout]    |                        ^            ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 82 -                     if (*value < min) {
[INFO] [stdout] 82 +                     if *value < min {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/data_frame/data_frame.rs:85:24
[INFO] [stdout]    |
[INFO] [stdout] 85 |                     if (*value > max) {
[INFO] [stdout]    |                        ^            ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 85 -                     if (*value > max) {
[INFO] [stdout] 85 +                     if *value > max {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/data_frame/data_frame.rs:96:24
[INFO] [stdout]    |
[INFO] [stdout] 96 |                     if (*value < min) {
[INFO] [stdout]    |                        ^            ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 96 -                     if (*value < min) {
[INFO] [stdout] 96 +                     if *value < min {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/data_frame/data_frame.rs:99:24
[INFO] [stdout]    |
[INFO] [stdout] 99 |                     if (*value > max) {
[INFO] [stdout]    |                        ^            ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 99 -                     if (*value > max) {
[INFO] [stdout] 99 +                     if *value > max {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/data_frame/data_frame.rs:107:12
[INFO] [stdout]     |
[INFO] [stdout] 107 |         if (self.number_of_samples == 0) {//the first column
[INFO] [stdout]     |            ^                           ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 107 -         if (self.number_of_samples == 0) {//the first column
[INFO] [stdout] 107 +         if self.number_of_samples == 0 {//the first column
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/data_frame/data_frame.rs:110:16
[INFO] [stdout]     |
[INFO] [stdout] 110 |             if (self.number_of_samples != column.len() as u32) {
[INFO] [stdout]     |                ^                                             ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 110 -             if (self.number_of_samples != column.len() as u32) {
[INFO] [stdout] 110 +             if self.number_of_samples != column.len() as u32 {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `length` should have an upper camel case name
[INFO] [stdout]   --> src/data_frame/data_type.rs:21:11
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub trait length {
[INFO] [stdout]    |           ^^^^^^ help: convert the identifier to upper camel case: `Length`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `print_at_index` should have an upper camel case name
[INFO] [stdout]   --> src/data_frame/data_type.rs:37:11
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub trait print_at_index {
[INFO] [stdout]    |           ^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `PrintAtIndex`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `temp`
[INFO] [stdout]   --> src/data_frame/data_frame.rs:74:31
[INFO] [stdout]    |
[INFO] [stdout] 74 |             DataType::Strings(temp) => {
[INFO] [stdout]    |                               ^^^^ help: if this is intentional, prefix it with an underscore: `_temp`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `temp`
[INFO] [stdout]    --> src/data_frame/data_frame.rs:167:34
[INFO] [stdout]     |
[INFO] [stdout] 167 |                 DataType::Floats(temp) => {
[INFO] [stdout]     |                                  ^^^^ help: if this is intentional, prefix it with an underscore: `_temp`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mean`
[INFO] [stdout]    --> src/data_frame/data_frame.rs:169:25
[INFO] [stdout]     |
[INFO] [stdout] 169 |                     let mean = 0.0_f32;
[INFO] [stdout]     |                         ^^^^ help: if this is intentional, prefix it with an underscore: `_mean`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mean`
[INFO] [stdout]    --> src/data_frame/data_frame.rs:241:21
[INFO] [stdout]     |
[INFO] [stdout] 241 |                 let mean = 0.0_f32;
[INFO] [stdout]     |                     ^^^^ help: if this is intentional, prefix it with an underscore: `_mean`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `temp`
[INFO] [stdout]    --> src/data_frame/data_frame.rs:327:36
[INFO] [stdout]     |
[INFO] [stdout] 327 |                 DataType::Category(temp) => {
[INFO] [stdout]     |                                    ^^^^ help: if this is intentional, prefix it with an underscore: `_temp`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `present`
[INFO] [stdout]    --> src/data_frame/data_frame.rs:371:13
[INFO] [stdout]     |
[INFO] [stdout] 371 |         let present:Vec<String> = vec![];
[INFO] [stdout]     |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_present`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `temp`
[INFO] [stdout]    --> src/data_frame/data_frame.rs:402:32
[INFO] [stdout]     |
[INFO] [stdout] 402 |             DataType::Category(temp) => {
[INFO] [stdout]     |                                ^^^^ help: if this is intentional, prefix it with an underscore: `_temp`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `temp`
[INFO] [stdout]    --> src/data_frame/data_frame.rs:405:30
[INFO] [stdout]     |
[INFO] [stdout] 405 |             DataType::Floats(temp) => {
[INFO] [stdout]     |                              ^^^^ help: if this is intentional, prefix it with an underscore: `_temp`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `temp`
[INFO] [stdout]    --> src/data_frame/data_frame.rs:454:32
[INFO] [stdout]     |
[INFO] [stdout] 454 |             DataType::Category(temp) => {
[INFO] [stdout]     |                                ^^^^ help: if this is intentional, prefix it with an underscore: `_temp`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `temp`
[INFO] [stdout]    --> src/data_frame/data_frame.rs:457:30
[INFO] [stdout]     |
[INFO] [stdout] 457 |             DataType::Floats(temp) => {
[INFO] [stdout]     |                              ^^^^ help: if this is intentional, prefix it with an underscore: `_temp`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/data_frame/data_frame.rs:506:13
[INFO] [stdout]     |
[INFO] [stdout] 506 |         let mut to_change: Vec<(usize , &Vec<f32>)> = vec![];
[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: unused variable: `to_change`
[INFO] [stdout]    --> src/data_frame/data_frame.rs:506:13
[INFO] [stdout]     |
[INFO] [stdout] 506 |         let mut to_change: Vec<(usize , &Vec<f32>)> = vec![];
[INFO] [stdout]     |             ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_to_change`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/data_frame/data_frame.rs:650:26
[INFO] [stdout]     |
[INFO] [stdout] 650 |                     for (i , point) in temp.iter_mut().enumerate() {
[INFO] [stdout]     |                          ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/data_frame/data_frame.rs:660:26
[INFO] [stdout]     |
[INFO] [stdout] 660 |                     for (i , point) in temp.iter_mut().enumerate() {
[INFO] [stdout]     |                          ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `temp`
[INFO] [stdout]    --> src/data_frame/data_frame.rs:668:36
[INFO] [stdout]     |
[INFO] [stdout] 668 |                 DataType::Category(temp) => {
[INFO] [stdout]     |                                    ^^^^ help: if this is intentional, prefix it with an underscore: `_temp`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `point`
[INFO] [stdout]    --> src/data_frame/data_frame.rs:795:29
[INFO] [stdout]     |
[INFO] [stdout] 795 |     pub fn transform(&self, point : Vec<f32>) {
[INFO] [stdout]     |                             ^^^^^ help: if this is intentional, prefix it with an underscore: `_point`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]    --> src/data_frame/read_from.rs:152:18
[INFO] [stdout]     |
[INFO] [stdout] 152 |         for (i , name) in _result.iter().enumerate() {
[INFO] [stdout]     |                  ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate `ferrumDF` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = help: convert the identifier to snake case: `ferrum_df`
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: incorrect NaN comparison, NaN cannot be directly compared to itself
[INFO] [stdout]    --> src/data_frame/data_frame.rs:496:16
[INFO] [stdout]     |
[INFO] [stdout] 496 |             if self.min_vector[i] != f32::NAN {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(invalid_nan_comparisons)]` on by default
[INFO] [stdout] help: use `f32::is_nan()` or `f64::is_nan()` instead
[INFO] [stdout]     |
[INFO] [stdout] 496 -             if self.min_vector[i] != f32::NAN {
[INFO] [stdout] 496 +             if !self.min_vector[i].is_nan() {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `IntoParallelRefIterator`, `ParallelBridge`, `iter::plumbing::Folder`, and `string`
[INFO] [stdout]  --> src/data_frame/data_frame.rs:5:69
[INFO] [stdout]   |
[INFO] [stdout] 5 | ...rallelIterator, ParallelBridge, IntoParallelRefIterator, IndexedParallelIterator}, string, iter::plumbing::Folder};
[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 `train_test_split` should have an upper camel case name
[INFO] [stdout]   --> src/data_frame/data_frame.rs:24:11
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub trait train_test_split {
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `TrainTestSplit`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_camel_case_types)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/data_frame/data_frame.rs:82:24
[INFO] [stdout]    |
[INFO] [stdout] 82 |                     if (*value < min) {
[INFO] [stdout]    |                        ^            ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 82 -                     if (*value < min) {
[INFO] [stdout] 82 +                     if *value < min {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/data_frame/data_frame.rs:85:24
[INFO] [stdout]    |
[INFO] [stdout] 85 |                     if (*value > max) {
[INFO] [stdout]    |                        ^            ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 85 -                     if (*value > max) {
[INFO] [stdout] 85 +                     if *value > max {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/data_frame/data_frame.rs:96:24
[INFO] [stdout]    |
[INFO] [stdout] 96 |                     if (*value < min) {
[INFO] [stdout]    |                        ^            ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 96 -                     if (*value < min) {
[INFO] [stdout] 96 +                     if *value < min {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/data_frame/data_frame.rs:99:24
[INFO] [stdout]    |
[INFO] [stdout] 99 |                     if (*value > max) {
[INFO] [stdout]    |                        ^            ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 99 -                     if (*value > max) {
[INFO] [stdout] 99 +                     if *value > max {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/data_frame/data_frame.rs:107:12
[INFO] [stdout]     |
[INFO] [stdout] 107 |         if (self.number_of_samples == 0) {//the first column
[INFO] [stdout]     |            ^                           ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 107 -         if (self.number_of_samples == 0) {//the first column
[INFO] [stdout] 107 +         if self.number_of_samples == 0 {//the first column
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/data_frame/data_frame.rs:110:16
[INFO] [stdout]     |
[INFO] [stdout] 110 |             if (self.number_of_samples != column.len() as u32) {
[INFO] [stdout]     |                ^                                             ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 110 -             if (self.number_of_samples != column.len() as u32) {
[INFO] [stdout] 110 +             if self.number_of_samples != column.len() as u32 {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `length` should have an upper camel case name
[INFO] [stdout]   --> src/data_frame/data_type.rs:21:11
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub trait length {
[INFO] [stdout]    |           ^^^^^^ help: convert the identifier to upper camel case: `Length`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `print_at_index` should have an upper camel case name
[INFO] [stdout]   --> src/data_frame/data_type.rs:37:11
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub trait print_at_index {
[INFO] [stdout]    |           ^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `PrintAtIndex`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `temp`
[INFO] [stdout]   --> src/data_frame/data_frame.rs:74:31
[INFO] [stdout]    |
[INFO] [stdout] 74 |             DataType::Strings(temp) => {
[INFO] [stdout]    |                               ^^^^ help: if this is intentional, prefix it with an underscore: `_temp`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `temp`
[INFO] [stdout]    --> src/data_frame/data_frame.rs:167:34
[INFO] [stdout]     |
[INFO] [stdout] 167 |                 DataType::Floats(temp) => {
[INFO] [stdout]     |                                  ^^^^ help: if this is intentional, prefix it with an underscore: `_temp`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mean`
[INFO] [stdout]    --> src/data_frame/data_frame.rs:169:25
[INFO] [stdout]     |
[INFO] [stdout] 169 |                     let mean = 0.0_f32;
[INFO] [stdout]     |                         ^^^^ help: if this is intentional, prefix it with an underscore: `_mean`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mean`
[INFO] [stdout]    --> src/data_frame/data_frame.rs:241:21
[INFO] [stdout]     |
[INFO] [stdout] 241 |                 let mean = 0.0_f32;
[INFO] [stdout]     |                     ^^^^ help: if this is intentional, prefix it with an underscore: `_mean`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `temp`
[INFO] [stdout]    --> src/data_frame/data_frame.rs:327:36
[INFO] [stdout]     |
[INFO] [stdout] 327 |                 DataType::Category(temp) => {
[INFO] [stdout]     |                                    ^^^^ help: if this is intentional, prefix it with an underscore: `_temp`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `present`
[INFO] [stdout]    --> src/data_frame/data_frame.rs:371:13
[INFO] [stdout]     |
[INFO] [stdout] 371 |         let present:Vec<String> = vec![];
[INFO] [stdout]     |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_present`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `temp`
[INFO] [stdout]    --> src/data_frame/data_frame.rs:402:32
[INFO] [stdout]     |
[INFO] [stdout] 402 |             DataType::Category(temp) => {
[INFO] [stdout]     |                                ^^^^ help: if this is intentional, prefix it with an underscore: `_temp`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `temp`
[INFO] [stdout]    --> src/data_frame/data_frame.rs:405:30
[INFO] [stdout]     |
[INFO] [stdout] 405 |             DataType::Floats(temp) => {
[INFO] [stdout]     |                              ^^^^ help: if this is intentional, prefix it with an underscore: `_temp`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `temp`
[INFO] [stdout]    --> src/data_frame/data_frame.rs:454:32
[INFO] [stdout]     |
[INFO] [stdout] 454 |             DataType::Category(temp) => {
[INFO] [stdout]     |                                ^^^^ help: if this is intentional, prefix it with an underscore: `_temp`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `temp`
[INFO] [stdout]    --> src/data_frame/data_frame.rs:457:30
[INFO] [stdout]     |
[INFO] [stdout] 457 |             DataType::Floats(temp) => {
[INFO] [stdout]     |                              ^^^^ help: if this is intentional, prefix it with an underscore: `_temp`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/data_frame/data_frame.rs:506:13
[INFO] [stdout]     |
[INFO] [stdout] 506 |         let mut to_change: Vec<(usize , &Vec<f32>)> = vec![];
[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: unused variable: `to_change`
[INFO] [stdout]    --> src/data_frame/data_frame.rs:506:13
[INFO] [stdout]     |
[INFO] [stdout] 506 |         let mut to_change: Vec<(usize , &Vec<f32>)> = vec![];
[INFO] [stdout]     |             ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_to_change`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/data_frame/data_frame.rs:650:26
[INFO] [stdout]     |
[INFO] [stdout] 650 |                     for (i , point) in temp.iter_mut().enumerate() {
[INFO] [stdout]     |                          ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/data_frame/data_frame.rs:660:26
[INFO] [stdout]     |
[INFO] [stdout] 660 |                     for (i , point) in temp.iter_mut().enumerate() {
[INFO] [stdout]     |                          ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `temp`
[INFO] [stdout]    --> src/data_frame/data_frame.rs:668:36
[INFO] [stdout]     |
[INFO] [stdout] 668 |                 DataType::Category(temp) => {
[INFO] [stdout]     |                                    ^^^^ help: if this is intentional, prefix it with an underscore: `_temp`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `point`
[INFO] [stdout]    --> src/data_frame/data_frame.rs:795:29
[INFO] [stdout]     |
[INFO] [stdout] 795 |     pub fn transform(&self, point : Vec<f32>) {
[INFO] [stdout]     |                             ^^^^^ help: if this is intentional, prefix it with an underscore: `_point`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]    --> src/data_frame/read_from.rs:152:18
[INFO] [stdout]     |
[INFO] [stdout] 152 |         for (i , name) in _result.iter().enumerate() {
[INFO] [stdout]     |                  ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: incorrect NaN comparison, NaN cannot be directly compared to itself
[INFO] [stdout]    --> src/data_frame/data_frame.rs:496:16
[INFO] [stdout]     |
[INFO] [stdout] 496 |             if self.min_vector[i] != f32::NAN {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(invalid_nan_comparisons)]` on by default
[INFO] [stdout] help: use `f32::is_nan()` or `f64::is_nan()` instead
[INFO] [stdout]     |
[INFO] [stdout] 496 -             if self.min_vector[i] != f32::NAN {
[INFO] [stdout] 496 +             if !self.min_vector[i].is_nan() {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [optimized + debuginfo] target(s) in 11.38s
[INFO] running `Command { std: "docker" "inspect" "2e7e89bd83bc9070465532b1bfbf3a3dbb1128f927f16c64f9cef938a743d34a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e7e89bd83bc9070465532b1bfbf3a3dbb1128f927f16c64f9cef938a743d34a", kill_on_drop: false }`
[INFO] [stdout] 2e7e89bd83bc9070465532b1bfbf3a3dbb1128f927f16c64f9cef938a743d34a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b40ee6b547d9cdf1fe33a4834d9f132fc93cf015918193c2883c8971e00e558b
[INFO] running `Command { std: "docker" "start" "-a" "b40ee6b547d9cdf1fe33a4834d9f132fc93cf015918193c2883c8971e00e558b", kill_on_drop: false }`
[INFO] [stdout] warning: unused imports: `IntoParallelRefIterator`, `ParallelBridge`, `iter::plumbing::Folder`, and `string`
[INFO] [stdout]  --> src/data_frame/data_frame.rs:5:69
[INFO] [stdout]   |
[INFO] [stdout] 5 | ...rallelIterator, ParallelBridge, IntoParallelRefIterator, IndexedParallelIterator}, string, iter::plumbing::Folder};
[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 `train_test_split` should have an upper camel case name
[INFO] [stdout]   --> src/data_frame/data_frame.rs:24:11
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub trait train_test_split {
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `TrainTestSplit`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_camel_case_types)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/data_frame/data_frame.rs:82:24
[INFO] [stdout]    |
[INFO] [stdout] 82 |                     if (*value < min) {
[INFO] [stdout]    |                        ^            ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 82 -                     if (*value < min) {
[INFO] [stdout] 82 +                     if *value < min {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/data_frame/data_frame.rs:85:24
[INFO] [stdout]    |
[INFO] [stdout] 85 |                     if (*value > max) {
[INFO] [stdout]    |                        ^            ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 85 -                     if (*value > max) {
[INFO] [stdout] 85 +                     if *value > max {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/data_frame/data_frame.rs:96:24
[INFO] [stdout]    |
[INFO] [stdout] 96 |                     if (*value < min) {
[INFO] [stdout]    |                        ^            ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 96 -                     if (*value < min) {
[INFO] [stdout] 96 +                     if *value < min {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/data_frame/data_frame.rs:99:24
[INFO] [stdout]    |
[INFO] [stdout] 99 |                     if (*value > max) {
[INFO] [stdout]    |                        ^            ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 99 -                     if (*value > max) {
[INFO] [stdout] 99 +                     if *value > max {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/data_frame/data_frame.rs:107:12
[INFO] [stdout]     |
[INFO] [stdout] 107 |         if (self.number_of_samples == 0) {//the first column
[INFO] [stdout]     |            ^                           ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 107 -         if (self.number_of_samples == 0) {//the first column
[INFO] [stdout] 107 +         if self.number_of_samples == 0 {//the first column
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/data_frame/data_frame.rs:110:16
[INFO] [stdout]     |
[INFO] [stdout] 110 |             if (self.number_of_samples != column.len() as u32) {
[INFO] [stdout]     |                ^                                             ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 110 -             if (self.number_of_samples != column.len() as u32) {
[INFO] [stdout] 110 +             if self.number_of_samples != column.len() as u32 {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `length` should have an upper camel case name
[INFO] [stdout]   --> src/data_frame/data_type.rs:21:11
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub trait length {
[INFO] [stdout]    |           ^^^^^^ help: convert the identifier to upper camel case: `Length`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `print_at_index` should have an upper camel case name
[INFO] [stdout]   --> src/data_frame/data_type.rs:37:11
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub trait print_at_index {
[INFO] [stdout]    |           ^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `PrintAtIndex`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `temp`
[INFO] [stdout]   --> src/data_frame/data_frame.rs:74:31
[INFO] [stdout]    |
[INFO] [stdout] 74 |             DataType::Strings(temp) => {
[INFO] [stdout]    |                               ^^^^ help: if this is intentional, prefix it with an underscore: `_temp`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `temp`
[INFO] [stdout]    --> src/data_frame/data_frame.rs:167:34
[INFO] [stdout]     |
[INFO] [stdout] 167 |                 DataType::Floats(temp) => {
[INFO] [stdout]     |                                  ^^^^ help: if this is intentional, prefix it with an underscore: `_temp`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mean`
[INFO] [stdout]    --> src/data_frame/data_frame.rs:169:25
[INFO] [stdout]     |
[INFO] [stdout] 169 |                     let mean = 0.0_f32;
[INFO] [stdout]     |                         ^^^^ help: if this is intentional, prefix it with an underscore: `_mean`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mean`
[INFO] [stdout]    --> src/data_frame/data_frame.rs:241:21
[INFO] [stdout]     |
[INFO] [stdout] 241 |                 let mean = 0.0_f32;
[INFO] [stdout]     |                     ^^^^ help: if this is intentional, prefix it with an underscore: `_mean`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `temp`
[INFO] [stdout]    --> src/data_frame/data_frame.rs:327:36
[INFO] [stdout]     |
[INFO] [stdout] 327 |                 DataType::Category(temp) => {
[INFO] [stdout]     |                                    ^^^^ help: if this is intentional, prefix it with an underscore: `_temp`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `present`
[INFO] [stdout]    --> src/data_frame/data_frame.rs:371:13
[INFO] [stdout]     |
[INFO] [stdout] 371 |         let present:Vec<String> = vec![];
[INFO] [stdout]     |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_present`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `temp`
[INFO] [stdout]    --> src/data_frame/data_frame.rs:402:32
[INFO] [stdout]     |
[INFO] [stdout] 402 |             DataType::Category(temp) => {
[INFO] [stdout]     |                                ^^^^ help: if this is intentional, prefix it with an underscore: `_temp`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `temp`
[INFO] [stdout]    --> src/data_frame/data_frame.rs:405:30
[INFO] [stdout]     |
[INFO] [stdout] 405 |             DataType::Floats(temp) => {
[INFO] [stdout]     |                              ^^^^ help: if this is intentional, prefix it with an underscore: `_temp`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `temp`
[INFO] [stdout]    --> src/data_frame/data_frame.rs:454:32
[INFO] [stdout]     |
[INFO] [stdout] 454 |             DataType::Category(temp) => {
[INFO] [stdout]     |                                ^^^^ help: if this is intentional, prefix it with an underscore: `_temp`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `temp`
[INFO] [stdout]    --> src/data_frame/data_frame.rs:457:30
[INFO] [stdout]     |
[INFO] [stdout] 457 |             DataType::Floats(temp) => {
[INFO] [stdout]     |                              ^^^^ help: if this is intentional, prefix it with an underscore: `_temp`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/data_frame/data_frame.rs:506:13
[INFO] [stdout]     |
[INFO] [stdout] 506 |         let mut to_change: Vec<(usize , &Vec<f32>)> = vec![];
[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: unused variable: `to_change`
[INFO] [stdout]    --> src/data_frame/data_frame.rs:506:13
[INFO] [stdout]     |
[INFO] [stdout] 506 |         let mut to_change: Vec<(usize , &Vec<f32>)> = vec![];
[INFO] [stdout]     |             ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_to_change`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/data_frame/data_frame.rs:650:26
[INFO] [stdout]     |
[INFO] [stdout] 650 |                     for (i , point) in temp.iter_mut().enumerate() {
[INFO] [stdout]     |                          ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/data_frame/data_frame.rs:660:26
[INFO] [stdout]     |
[INFO] [stdout] 660 |                     for (i , point) in temp.iter_mut().enumerate() {
[INFO] [stdout]     |                          ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `temp`
[INFO] [stdout]    --> src/data_frame/data_frame.rs:668:36
[INFO] [stdout]     |
[INFO] [stdout] 668 |                 DataType::Category(temp) => {
[INFO] [stdout]     |                                    ^^^^ help: if this is intentional, prefix it with an underscore: `_temp`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `point`
[INFO] [stdout]    --> src/data_frame/data_frame.rs:795:29
[INFO] [stdout]     |
[INFO] [stdout] 795 |     pub fn transform(&self, point : Vec<f32>) {
[INFO] [stdout]     |                             ^^^^^ help: if this is intentional, prefix it with an underscore: `_point`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]    --> src/data_frame/read_from.rs:152:18
[INFO] [stdout]     |
[INFO] [stdout] 152 |         for (i , name) in _result.iter().enumerate() {
[INFO] [stdout]     |                  ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate `ferrumDF` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = help: convert the identifier to snake case: `ferrum_df`
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: incorrect NaN comparison, NaN cannot be directly compared to itself
[INFO] [stdout]    --> src/data_frame/data_frame.rs:496:16
[INFO] [stdout]     |
[INFO] [stdout] 496 |             if self.min_vector[i] != f32::NAN {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(invalid_nan_comparisons)]` on by default
[INFO] [stdout] help: use `f32::is_nan()` or `f64::is_nan()` instead
[INFO] [stdout]     |
[INFO] [stdout] 496 -             if self.min_vector[i] != f32::NAN {
[INFO] [stdout] 496 +             if !self.min_vector[i].is_nan() {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling ferrumDF v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `IntoParallelRefIterator`, `ParallelBridge`, `iter::plumbing::Folder`, and `string`
[INFO] [stdout]  --> src/data_frame/data_frame.rs:5:69
[INFO] [stdout]   |
[INFO] [stdout] 5 | ...rallelIterator, ParallelBridge, IntoParallelRefIterator, IndexedParallelIterator}, string, iter::plumbing::Folder};
[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 `train_test_split` should have an upper camel case name
[INFO] [stdout]   --> src/data_frame/data_frame.rs:24:11
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub trait train_test_split {
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `TrainTestSplit`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_camel_case_types)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/data_frame/data_frame.rs:82:24
[INFO] [stdout]    |
[INFO] [stdout] 82 |                     if (*value < min) {
[INFO] [stdout]    |                        ^            ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 82 -                     if (*value < min) {
[INFO] [stdout] 82 +                     if *value < min {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/data_frame/data_frame.rs:85:24
[INFO] [stdout]    |
[INFO] [stdout] 85 |                     if (*value > max) {
[INFO] [stdout]    |                        ^            ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 85 -                     if (*value > max) {
[INFO] [stdout] 85 +                     if *value > max {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/data_frame/data_frame.rs:96:24
[INFO] [stdout]    |
[INFO] [stdout] 96 |                     if (*value < min) {
[INFO] [stdout]    |                        ^            ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 96 -                     if (*value < min) {
[INFO] [stdout] 96 +                     if *value < min {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/data_frame/data_frame.rs:99:24
[INFO] [stdout]    |
[INFO] [stdout] 99 |                     if (*value > max) {
[INFO] [stdout]    |                        ^            ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 99 -                     if (*value > max) {
[INFO] [stdout] 99 +                     if *value > max {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/data_frame/data_frame.rs:107:12
[INFO] [stdout]     |
[INFO] [stdout] 107 |         if (self.number_of_samples == 0) {//the first column
[INFO] [stdout]     |            ^                           ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 107 -         if (self.number_of_samples == 0) {//the first column
[INFO] [stdout] 107 +         if self.number_of_samples == 0 {//the first column
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/data_frame/data_frame.rs:110:16
[INFO] [stdout]     |
[INFO] [stdout] 110 |             if (self.number_of_samples != column.len() as u32) {
[INFO] [stdout]     |                ^                                             ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 110 -             if (self.number_of_samples != column.len() as u32) {
[INFO] [stdout] 110 +             if self.number_of_samples != column.len() as u32 {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `length` should have an upper camel case name
[INFO] [stdout]   --> src/data_frame/data_type.rs:21:11
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub trait length {
[INFO] [stdout]    |           ^^^^^^ help: convert the identifier to upper camel case: `Length`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `print_at_index` should have an upper camel case name
[INFO] [stdout]   --> src/data_frame/data_type.rs:37:11
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub trait print_at_index {
[INFO] [stdout]    |           ^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `PrintAtIndex`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `IntoParallelRefIterator`, `ParallelBridge`, `iter::plumbing::Folder`, and `string`
[INFO] [stdout]  --> src/data_frame/data_frame.rs:5:69
[INFO] [stdout]   |
[INFO] [stdout] 5 | ...rallelIterator, ParallelBridge, IntoParallelRefIterator, IndexedParallelIterator}, string, iter::plumbing::Folder};
[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 `train_test_split` should have an upper camel case name
[INFO] [stdout]   --> src/data_frame/data_frame.rs:24:11
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub trait train_test_split {
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `TrainTestSplit`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_camel_case_types)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/data_frame/data_frame.rs:82:24
[INFO] [stdout]    |
[INFO] [stdout] 82 |                     if (*value < min) {
[INFO] [stdout]    |                        ^            ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 82 -                     if (*value < min) {
[INFO] [stdout] 82 +                     if *value < min {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/data_frame/data_frame.rs:85:24
[INFO] [stdout]    |
[INFO] [stdout] 85 |                     if (*value > max) {
[INFO] [stdout]    |                        ^            ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 85 -                     if (*value > max) {
[INFO] [stdout] 85 +                     if *value > max {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/data_frame/data_frame.rs:96:24
[INFO] [stdout]    |
[INFO] [stdout] 96 |                     if (*value < min) {
[INFO] [stdout]    |                        ^            ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 96 -                     if (*value < min) {
[INFO] [stdout] 96 +                     if *value < min {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/data_frame/data_frame.rs:99:24
[INFO] [stdout]    |
[INFO] [stdout] 99 |                     if (*value > max) {
[INFO] [stdout]    |                        ^            ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 99 -                     if (*value > max) {
[INFO] [stdout] 99 +                     if *value > max {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/data_frame/data_frame.rs:107:12
[INFO] [stdout]     |
[INFO] [stdout] 107 |         if (self.number_of_samples == 0) {//the first column
[INFO] [stdout]     |            ^                           ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 107 -         if (self.number_of_samples == 0) {//the first column
[INFO] [stdout] 107 +         if self.number_of_samples == 0 {//the first column
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/data_frame/data_frame.rs:110:16
[INFO] [stdout]     |
[INFO] [stdout] 110 |             if (self.number_of_samples != column.len() as u32) {
[INFO] [stdout]     |                ^                                             ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 110 -             if (self.number_of_samples != column.len() as u32) {
[INFO] [stdout] 110 +             if self.number_of_samples != column.len() as u32 {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `length` should have an upper camel case name
[INFO] [stdout]   --> src/data_frame/data_type.rs:21:11
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub trait length {
[INFO] [stdout]    |           ^^^^^^ help: convert the identifier to upper camel case: `Length`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `print_at_index` should have an upper camel case name
[INFO] [stdout]   --> src/data_frame/data_type.rs:37:11
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub trait print_at_index {
[INFO] [stdout]    |           ^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `PrintAtIndex`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `temp`
[INFO] [stdout]   --> src/data_frame/data_frame.rs:74:31
[INFO] [stdout]    |
[INFO] [stdout] 74 |             DataType::Strings(temp) => {
[INFO] [stdout]    |                               ^^^^ help: if this is intentional, prefix it with an underscore: `_temp`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `temp`
[INFO] [stdout]   --> src/data_frame/data_frame.rs:74:31
[INFO] [stdout]    |
[INFO] [stdout] 74 |             DataType::Strings(temp) => {
[INFO] [stdout]    |                               ^^^^ help: if this is intentional, prefix it with an underscore: `_temp`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `temp`
[INFO] [stdout]    --> src/data_frame/data_frame.rs:167:34
[INFO] [stdout]     |
[INFO] [stdout] 167 |                 DataType::Floats(temp) => {
[INFO] [stdout]     |                                  ^^^^ help: if this is intentional, prefix it with an underscore: `_temp`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mean`
[INFO] [stdout]    --> src/data_frame/data_frame.rs:169:25
[INFO] [stdout]     |
[INFO] [stdout] 169 |                     let mean = 0.0_f32;
[INFO] [stdout]     |                         ^^^^ help: if this is intentional, prefix it with an underscore: `_mean`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `temp`
[INFO] [stdout]    --> src/data_frame/data_frame.rs:167:34
[INFO] [stdout]     |
[INFO] [stdout] 167 |                 DataType::Floats(temp) => {
[INFO] [stdout]     |                                  ^^^^ help: if this is intentional, prefix it with an underscore: `_temp`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mean`
[INFO] [stdout]    --> src/data_frame/data_frame.rs:169:25
[INFO] [stdout]     |
[INFO] [stdout] 169 |                     let mean = 0.0_f32;
[INFO] [stdout]     |                         ^^^^ help: if this is intentional, prefix it with an underscore: `_mean`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mean`
[INFO] [stdout]    --> src/data_frame/data_frame.rs:241:21
[INFO] [stdout]     |
[INFO] [stdout] 241 |                 let mean = 0.0_f32;
[INFO] [stdout]     |                     ^^^^ help: if this is intentional, prefix it with an underscore: `_mean`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `temp`
[INFO] [stdout]    --> src/data_frame/data_frame.rs:327:36
[INFO] [stdout]     |
[INFO] [stdout] 327 |                 DataType::Category(temp) => {
[INFO] [stdout]     |                                    ^^^^ help: if this is intentional, prefix it with an underscore: `_temp`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `present`
[INFO] [stdout]    --> src/data_frame/data_frame.rs:371:13
[INFO] [stdout]     |
[INFO] [stdout] 371 |         let present:Vec<String> = vec![];
[INFO] [stdout]     |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_present`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mean`
[INFO] [stdout]    --> src/data_frame/data_frame.rs:241:21
[INFO] [stdout]     |
[INFO] [stdout] 241 |                 let mean = 0.0_f32;
[INFO] [stdout]     |                     ^^^^ help: if this is intentional, prefix it with an underscore: `_mean`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `temp`
[INFO] [stdout]    --> src/data_frame/data_frame.rs:402:32
[INFO] [stdout]     |
[INFO] [stdout] 402 |             DataType::Category(temp) => {
[INFO] [stdout]     |                                ^^^^ help: if this is intentional, prefix it with an underscore: `_temp`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `temp`
[INFO] [stdout]    --> src/data_frame/data_frame.rs:405:30
[INFO] [stdout]     |
[INFO] [stdout] 405 |             DataType::Floats(temp) => {
[INFO] [stdout]     |                              ^^^^ help: if this is intentional, prefix it with an underscore: `_temp`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `temp`
[INFO] [stdout]    --> src/data_frame/data_frame.rs:454:32
[INFO] [stdout]     |
[INFO] [stdout] 454 |             DataType::Category(temp) => {
[INFO] [stdout]     |                                ^^^^ help: if this is intentional, prefix it with an underscore: `_temp`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `temp`
[INFO] [stdout]    --> src/data_frame/data_frame.rs:457:30
[INFO] [stdout]     |
[INFO] [stdout] 457 |             DataType::Floats(temp) => {
[INFO] [stdout]     |                              ^^^^ help: if this is intentional, prefix it with an underscore: `_temp`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `temp`
[INFO] [stdout]    --> src/data_frame/data_frame.rs:327:36
[INFO] [stdout]     |
[INFO] [stdout] 327 |                 DataType::Category(temp) => {
[INFO] [stdout]     |                                    ^^^^ help: if this is intentional, prefix it with an underscore: `_temp`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/data_frame/data_frame.rs:506:13
[INFO] [stdout]     |
[INFO] [stdout] 506 |         let mut to_change: Vec<(usize , &Vec<f32>)> = vec![];
[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: unused variable: `to_change`
[INFO] [stdout]    --> src/data_frame/data_frame.rs:506:13
[INFO] [stdout]     |
[INFO] [stdout] 506 |         let mut to_change: Vec<(usize , &Vec<f32>)> = vec![];
[INFO] [stdout]     |             ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_to_change`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `present`
[INFO] [stdout]    --> src/data_frame/data_frame.rs:371:13
[INFO] [stdout]     |
[INFO] [stdout] 371 |         let present:Vec<String> = vec![];
[INFO] [stdout]     |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_present`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `temp`
[INFO] [stdout]    --> src/data_frame/data_frame.rs:402:32
[INFO] [stdout]     |
[INFO] [stdout] 402 |             DataType::Category(temp) => {
[INFO] [stdout]     |                                ^^^^ help: if this is intentional, prefix it with an underscore: `_temp`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `temp`
[INFO] [stdout]    --> src/data_frame/data_frame.rs:405:30
[INFO] [stdout]     |
[INFO] [stdout] 405 |             DataType::Floats(temp) => {
[INFO] [stdout]     |                              ^^^^ help: if this is intentional, prefix it with an underscore: `_temp`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/data_frame/data_frame.rs:650:26
[INFO] [stdout]     |
[INFO] [stdout] 650 |                     for (i , point) in temp.iter_mut().enumerate() {
[INFO] [stdout]     |                          ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/data_frame/data_frame.rs:660:26
[INFO] [stdout]     |
[INFO] [stdout] 660 |                     for (i , point) in temp.iter_mut().enumerate() {
[INFO] [stdout]     |                          ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `temp`
[INFO] [stdout]    --> src/data_frame/data_frame.rs:668:36
[INFO] [stdout]     |
[INFO] [stdout] 668 |                 DataType::Category(temp) => {
[INFO] [stdout]     |                                    ^^^^ help: if this is intentional, prefix it with an underscore: `_temp`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `temp`
[INFO] [stdout]    --> src/data_frame/data_frame.rs:454:32
[INFO] [stdout]     |
[INFO] [stdout] 454 |             DataType::Category(temp) => {
[INFO] [stdout]     |                                ^^^^ help: if this is intentional, prefix it with an underscore: `_temp`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `temp`
[INFO] [stdout]    --> src/data_frame/data_frame.rs:457:30
[INFO] [stdout]     |
[INFO] [stdout] 457 |             DataType::Floats(temp) => {
[INFO] [stdout]     |                              ^^^^ help: if this is intentional, prefix it with an underscore: `_temp`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/data_frame/data_frame.rs:506:13
[INFO] [stdout]     |
[INFO] [stdout] 506 |         let mut to_change: Vec<(usize , &Vec<f32>)> = vec![];
[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: unused variable: `to_change`
[INFO] [stdout]    --> src/data_frame/data_frame.rs:506:13
[INFO] [stdout]     |
[INFO] [stdout] 506 |         let mut to_change: Vec<(usize , &Vec<f32>)> = vec![];
[INFO] [stdout]     |             ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_to_change`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `point`
[INFO] [stdout]    --> src/data_frame/data_frame.rs:795:29
[INFO] [stdout]     |
[INFO] [stdout] 795 |     pub fn transform(&self, point : Vec<f32>) {
[INFO] [stdout]     |                             ^^^^^ help: if this is intentional, prefix it with an underscore: `_point`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/data_frame/data_frame.rs:650:26
[INFO] [stdout]     |
[INFO] [stdout] 650 |                     for (i , point) in temp.iter_mut().enumerate() {
[INFO] [stdout]     |                          ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/data_frame/data_frame.rs:660:26
[INFO] [stdout]     |
[INFO] [stdout] 660 |                     for (i , point) in temp.iter_mut().enumerate() {
[INFO] [stdout]     |                          ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `temp`
[INFO] [stdout]    --> src/data_frame/data_frame.rs:668:36
[INFO] [stdout]     |
[INFO] [stdout] 668 |                 DataType::Category(temp) => {
[INFO] [stdout]     |                                    ^^^^ help: if this is intentional, prefix it with an underscore: `_temp`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]    --> src/data_frame/read_from.rs:152:18
[INFO] [stdout]     |
[INFO] [stdout] 152 |         for (i , name) in _result.iter().enumerate() {
[INFO] [stdout]     |                  ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `point`
[INFO] [stdout]    --> src/data_frame/data_frame.rs:795:29
[INFO] [stdout]     |
[INFO] [stdout] 795 |     pub fn transform(&self, point : Vec<f32>) {
[INFO] [stdout]     |                             ^^^^^ help: if this is intentional, prefix it with an underscore: `_point`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: incorrect NaN comparison, NaN cannot be directly compared to itself
[INFO] [stdout]    --> src/data_frame/data_frame.rs:496:16
[INFO] [stdout]     |
[INFO] [stdout] 496 |             if self.min_vector[i] != f32::NAN {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(invalid_nan_comparisons)]` on by default
[INFO] [stdout] help: use `f32::is_nan()` or `f64::is_nan()` instead
[INFO] [stdout]     |
[INFO] [stdout] 496 -             if self.min_vector[i] != f32::NAN {
[INFO] [stdout] 496 +             if !self.min_vector[i].is_nan() {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]    --> src/data_frame/read_from.rs:152:18
[INFO] [stdout]     |
[INFO] [stdout] 152 |         for (i , name) in _result.iter().enumerate() {
[INFO] [stdout]     |                  ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: incorrect NaN comparison, NaN cannot be directly compared to itself
[INFO] [stdout]    --> src/data_frame/data_frame.rs:496:16
[INFO] [stdout]     |
[INFO] [stdout] 496 |             if self.min_vector[i] != f32::NAN {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(invalid_nan_comparisons)]` on by default
[INFO] [stdout] help: use `f32::is_nan()` or `f64::is_nan()` instead
[INFO] [stdout]     |
[INFO] [stdout] 496 -             if self.min_vector[i] != f32::NAN {
[INFO] [stdout] 496 +             if !self.min_vector[i].is_nan() {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [optimized + debuginfo] target(s) in 0.67s
[INFO] running `Command { std: "docker" "inspect" "b40ee6b547d9cdf1fe33a4834d9f132fc93cf015918193c2883c8971e00e558b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b40ee6b547d9cdf1fe33a4834d9f132fc93cf015918193c2883c8971e00e558b", kill_on_drop: false }`
[INFO] [stdout] b40ee6b547d9cdf1fe33a4834d9f132fc93cf015918193c2883c8971e00e558b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9587b59d5d681d7090796ebd4f597bda545f41eca3677330a496925dd2280a5d
[INFO] running `Command { std: "docker" "start" "-a" "9587b59d5d681d7090796ebd4f597bda545f41eca3677330a496925dd2280a5d", kill_on_drop: false }`
[INFO] [stderr] warning: unused imports: `IntoParallelRefIterator`, `ParallelBridge`, `iter::plumbing::Folder`, and `string`
[INFO] [stderr]  --> src/data_frame/data_frame.rs:5:69
[INFO] [stderr]   |
[INFO] [stderr] 5 | ...rallelIterator, ParallelBridge, IntoParallelRefIterator, IndexedParallelIterator}, string, iter::plumbing::Folder};
[INFO] [stderr]   |                    ^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^^                            ^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait `train_test_split` should have an upper camel case name
[INFO] [stderr]   --> src/data_frame/data_frame.rs:24:11
[INFO] [stderr]    |
[INFO] [stderr] 24 | pub trait train_test_split {
[INFO] [stderr]    |           ^^^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `TrainTestSplit`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_camel_case_types)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]   --> src/data_frame/data_frame.rs:82:24
[INFO] [stderr]    |
[INFO] [stderr] 82 |                     if (*value < min) {
[INFO] [stderr]    |                        ^            ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 82 -                     if (*value < min) {
[INFO] [stderr] 82 +                     if *value < min {
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]   --> src/data_frame/data_frame.rs:85:24
[INFO] [stderr]    |
[INFO] [stderr] 85 |                     if (*value > max) {
[INFO] [stderr]    |                        ^            ^
[INFO] [stderr]    |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 85 -                     if (*value > max) {
[INFO] [stderr] 85 +                     if *value > max {
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]   --> src/data_frame/data_frame.rs:96:24
[INFO] [stderr]    |
[INFO] [stderr] 96 |                     if (*value < min) {
[INFO] [stderr]    |                        ^            ^
[INFO] [stderr]    |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 96 -                     if (*value < min) {
[INFO] [stderr] 96 +                     if *value < min {
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]   --> src/data_frame/data_frame.rs:99:24
[INFO] [stderr]    |
[INFO] [stderr] 99 |                     if (*value > max) {
[INFO] [stderr]    |                        ^            ^
[INFO] [stderr]    |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 99 -                     if (*value > max) {
[INFO] [stderr] 99 +                     if *value > max {
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]    --> src/data_frame/data_frame.rs:107:12
[INFO] [stderr]     |
[INFO] [stderr] 107 |         if (self.number_of_samples == 0) {//the first column
[INFO] [stderr]     |            ^                           ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 107 -         if (self.number_of_samples == 0) {//the first column
[INFO] [stderr] 107 +         if self.number_of_samples == 0 {//the first column
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]    --> src/data_frame/data_frame.rs:110:16
[INFO] [stderr]     |
[INFO] [stderr] 110 |             if (self.number_of_samples != column.len() as u32) {
[INFO] [stderr]     |                ^                                             ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 110 -             if (self.number_of_samples != column.len() as u32) {
[INFO] [stderr] 110 +             if self.number_of_samples != column.len() as u32 {
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: trait `length` should have an upper camel case name
[INFO] [stderr]   --> src/data_frame/data_type.rs:21:11
[INFO] [stderr]    |
[INFO] [stderr] 21 | pub trait length {
[INFO] [stderr]    |           ^^^^^^ help: convert the identifier to upper camel case: `Length`
[INFO] [stderr] 
[INFO] [stderr] warning: trait `print_at_index` should have an upper camel case name
[INFO] [stderr]   --> src/data_frame/data_type.rs:37:11
[INFO] [stderr]    |
[INFO] [stderr] 37 | pub trait print_at_index {
[INFO] [stderr]    |           ^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `PrintAtIndex`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `temp`
[INFO] [stderr]   --> src/data_frame/data_frame.rs:74:31
[INFO] [stderr]    |
[INFO] [stderr] 74 |             DataType::Strings(temp) => {
[INFO] [stderr]    |                               ^^^^ help: if this is intentional, prefix it with an underscore: `_temp`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `temp`
[INFO] [stderr]    --> src/data_frame/data_frame.rs:167:34
[INFO] [stderr]     |
[INFO] [stderr] 167 |                 DataType::Floats(temp) => {
[INFO] [stderr]     |                                  ^^^^ help: if this is intentional, prefix it with an underscore: `_temp`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `mean`
[INFO] [stderr]    --> src/data_frame/data_frame.rs:169:25
[INFO] [stderr]     |
[INFO] [stderr] 169 |                     let mean = 0.0_f32;
[INFO] [stdout] 
[INFO] [stderr]     |                         ^^^^ help: if this is intentional, prefix it with an underscore: `_mean`
[INFO] [stdout] running 0 tests
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stderr] warning: unused variable: `mean`
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]    --> src/data_frame/data_frame.rs:241:21
[INFO] [stdout] 
[INFO] [stderr]     |
[INFO] [stdout] 
[INFO] [stderr] 241 |                 let mean = 0.0_f32;
[INFO] [stdout] running 0 tests
[INFO] [stderr]     |                     ^^^^ help: if this is intentional, prefix it with an underscore: `_mean`
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] warning: unused variable: `temp`
[INFO] [stdout] 
[INFO] [stderr]    --> src/data_frame/data_frame.rs:327:36
[INFO] [stderr]     |
[INFO] [stderr] 327 |                 DataType::Category(temp) => {
[INFO] [stderr]     |                                    ^^^^ help: if this is intentional, prefix it with an underscore: `_temp`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `present`
[INFO] [stderr]    --> src/data_frame/data_frame.rs:371:13
[INFO] [stderr]     |
[INFO] [stderr] 371 |         let present:Vec<String> = vec![];
[INFO] [stderr]     |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_present`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `temp`
[INFO] [stderr]    --> src/data_frame/data_frame.rs:402:32
[INFO] [stderr]     |
[INFO] [stderr] 402 |             DataType::Category(temp) => {
[INFO] [stderr]     |                                ^^^^ help: if this is intentional, prefix it with an underscore: `_temp`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `temp`
[INFO] [stderr]    --> src/data_frame/data_frame.rs:405:30
[INFO] [stderr]     |
[INFO] [stderr] 405 |             DataType::Floats(temp) => {
[INFO] [stderr]     |                              ^^^^ help: if this is intentional, prefix it with an underscore: `_temp`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `temp`
[INFO] [stderr]    --> src/data_frame/data_frame.rs:454:32
[INFO] [stderr]     |
[INFO] [stderr] 454 |             DataType::Category(temp) => {
[INFO] [stderr]     |                                ^^^^ help: if this is intentional, prefix it with an underscore: `_temp`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `temp`
[INFO] [stderr]    --> src/data_frame/data_frame.rs:457:30
[INFO] [stderr]     |
[INFO] [stderr] 457 |             DataType::Floats(temp) => {
[INFO] [stderr]     |                              ^^^^ help: if this is intentional, prefix it with an underscore: `_temp`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/data_frame/data_frame.rs:506:13
[INFO] [stderr]     |
[INFO] [stderr] 506 |         let mut to_change: Vec<(usize , &Vec<f32>)> = vec![];
[INFO] [stderr]     |             ----^^^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `to_change`
[INFO] [stderr]    --> src/data_frame/data_frame.rs:506:13
[INFO] [stderr]     |
[INFO] [stderr] 506 |         let mut to_change: Vec<(usize , &Vec<f32>)> = vec![];
[INFO] [stderr]     |             ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_to_change`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/data_frame/data_frame.rs:650:26
[INFO] [stderr]     |
[INFO] [stderr] 650 |                     for (i , point) in temp.iter_mut().enumerate() {
[INFO] [stderr]     |                          ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/data_frame/data_frame.rs:660:26
[INFO] [stderr]     |
[INFO] [stderr] 660 |                     for (i , point) in temp.iter_mut().enumerate() {
[INFO] [stderr]     |                          ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `temp`
[INFO] [stderr]    --> src/data_frame/data_frame.rs:668:36
[INFO] [stderr]     |
[INFO] [stderr] 668 |                 DataType::Category(temp) => {
[INFO] [stderr]     |                                    ^^^^ help: if this is intentional, prefix it with an underscore: `_temp`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `point`
[INFO] [stderr]    --> src/data_frame/data_frame.rs:795:29
[INFO] [stderr]     |
[INFO] [stderr] 795 |     pub fn transform(&self, point : Vec<f32>) {
[INFO] [stderr]     |                             ^^^^^ help: if this is intentional, prefix it with an underscore: `_point`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `name`
[INFO] [stderr]    --> src/data_frame/read_from.rs:152:18
[INFO] [stderr]     |
[INFO] [stderr] 152 |         for (i , name) in _result.iter().enumerate() {
[INFO] [stderr]     |                  ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stderr] 
[INFO] [stderr] warning: crate `ferrumDF` should have a snake case name
[INFO] [stderr]   |
[INFO] [stderr]   = help: convert the identifier to snake case: `ferrum_df`
[INFO] [stderr]   = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: incorrect NaN comparison, NaN cannot be directly compared to itself
[INFO] [stderr]    --> src/data_frame/data_frame.rs:496:16
[INFO] [stderr]     |
[INFO] [stderr] 496 |             if self.min_vector[i] != f32::NAN {
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(invalid_nan_comparisons)]` on by default
[INFO] [stderr] help: use `f32::is_nan()` or `f64::is_nan()` instead
[INFO] [stderr]     |
[INFO] [stderr] 496 -             if self.min_vector[i] != f32::NAN {
[INFO] [stderr] 496 +             if !self.min_vector[i].is_nan() {
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: `ferrumDF` (lib) generated 29 warnings (run `cargo fix --lib -p ferrumDF` to apply 25 suggestions)
[INFO] [stderr] warning: `ferrumDF` (bin "ferrumDF" test) generated 28 warnings (28 duplicates)
[INFO] [stderr] warning: `ferrumDF` (lib test) generated 28 warnings (28 duplicates)
[INFO] [stderr]     Finished `test` profile [optimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/ferrumDF-567c8ff7ebd4ae04)
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/ferrumDF-41ed3995634d33f3)
[INFO] [stderr]    Doc-tests ferrumDF
[INFO] [stderr] warning: trait `train_test_split` should have an upper camel case name
[INFO] [stderr]   --> src/data_frame/data_frame.rs:24:11
[INFO] [stderr]    |
[INFO] [stderr] 24 | pub trait train_test_split {
[INFO] [stderr]    |           ^^^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `TrainTestSplit`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_camel_case_types)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]   --> src/data_frame/data_frame.rs:82:24
[INFO] [stderr]    |
[INFO] [stderr] 82 |                     if (*value < min) {
[INFO] [stderr]    |                        ^            ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 82 -                     if (*value < min) {
[INFO] [stderr] 82 +                     if *value < min {
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]   --> src/data_frame/data_frame.rs:85:24
[INFO] [stderr]    |
[INFO] [stderr] 85 |                     if (*value > max) {
[INFO] [stderr]    |                        ^            ^
[INFO] [stderr]    |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 85 -                     if (*value > max) {
[INFO] [stderr] 85 +                     if *value > max {
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]   --> src/data_frame/data_frame.rs:96:24
[INFO] [stderr]    |
[INFO] [stderr] 96 |                     if (*value < min) {
[INFO] [stderr]    |                        ^            ^
[INFO] [stderr]    |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 96 -                     if (*value < min) {
[INFO] [stderr] 96 +                     if *value < min {
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]   --> src/data_frame/data_frame.rs:99:24
[INFO] [stderr]    |
[INFO] [stderr] 99 |                     if (*value > max) {
[INFO] [stderr]    |                        ^            ^
[INFO] [stderr]    |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 99 -                     if (*value > max) {
[INFO] [stdout] 
[INFO] [stderr] 99 +                     if *value > max {
[INFO] [stdout] running 0 tests
[INFO] [stderr]    |
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stdout] 
[INFO] [stderr]    --> src/data_frame/data_frame.rs:107:12
[INFO] [stderr]     |
[INFO] [stderr] 107 |         if (self.number_of_samples == 0) {//the first column
[INFO] [stderr]     |            ^                           ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 107 -         if (self.number_of_samples == 0) {//the first column
[INFO] [stderr] 107 +         if self.number_of_samples == 0 {//the first column
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]    --> src/data_frame/data_frame.rs:110:16
[INFO] [stderr]     |
[INFO] [stderr] 110 |             if (self.number_of_samples != column.len() as u32) {
[INFO] [stderr]     |                ^                                             ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 110 -             if (self.number_of_samples != column.len() as u32) {
[INFO] [stderr] 110 +             if self.number_of_samples != column.len() as u32 {
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: trait `length` should have an upper camel case name
[INFO] [stderr]   --> src/data_frame/data_type.rs:21:11
[INFO] [stderr]    |
[INFO] [stderr] 21 | pub trait length {
[INFO] [stderr]    |           ^^^^^^ help: convert the identifier to upper camel case: `Length`
[INFO] [stderr] 
[INFO] [stderr] warning: trait `print_at_index` should have an upper camel case name
[INFO] [stderr]   --> src/data_frame/data_type.rs:37:11
[INFO] [stderr]    |
[INFO] [stderr] 37 | pub trait print_at_index {
[INFO] [stderr]    |           ^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `PrintAtIndex`
[INFO] [stderr] 
[INFO] [stderr] warning: 9 warnings emitted
[INFO] [stderr] 
[INFO] running `Command { std: "docker" "inspect" "9587b59d5d681d7090796ebd4f597bda545f41eca3677330a496925dd2280a5d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9587b59d5d681d7090796ebd4f597bda545f41eca3677330a496925dd2280a5d", kill_on_drop: false }`
[INFO] [stdout] 9587b59d5d681d7090796ebd4f597bda545f41eca3677330a496925dd2280a5d
