[INFO] cloning repository https://github.com/woowe/rust_ann
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/woowe/rust_ann" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwoowe%2Frust_ann", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwoowe%2Frust_ann'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 37ab0eecd42f3fffbdb8389ccd090d13541be58e
[INFO] checking woowe/rust_ann against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwoowe%2Frust_ann" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/woowe/rust_ann on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/woowe/rust_ann
[INFO] finished tweaking git repo https://github.com/woowe/rust_ann
[INFO] tweaked toml for git repo https://github.com/woowe/rust_ann written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/woowe/rust_ann already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/woowe/num_rust.git`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded num_cpus v1.1.0
[INFO] [stderr]   Downloaded matrixmultiply v0.1.11
[INFO] [stderr]   Downloaded rayon v0.4.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b3b2686109bfa41c804626af9fdb82e325835d17e5ea0862b0d643199abd5296
[INFO] running `Command { std: "docker" "start" "-a" "b3b2686109bfa41c804626af9fdb82e325835d17e5ea0862b0d643199abd5296", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b3b2686109bfa41c804626af9fdb82e325835d17e5ea0862b0d643199abd5296", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b3b2686109bfa41c804626af9fdb82e325835d17e5ea0862b0d643199abd5296", kill_on_drop: false }`
[INFO] [stdout] b3b2686109bfa41c804626af9fdb82e325835d17e5ea0862b0d643199abd5296
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 08fe4a8f1b2e2b8955179e906fc5d998f06253a8dc15c2604aefe282ab26881c
[INFO] running `Command { std: "docker" "start" "-a" "08fe4a8f1b2e2b8955179e906fc5d998f06253a8dc15c2604aefe282ab26881c", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.17
[INFO] [stderr]     Checking matrixmultiply v0.1.11
[INFO] [stderr]     Checking rand v0.3.14
[INFO] [stderr]     Checking num_cpus v1.1.0
[INFO] [stderr]     Checking deque v0.3.1
[INFO] [stderr]     Checking rayon v0.4.3
[INFO] [stderr]     Checking num_rust v0.1.0 (https://github.com/woowe/num_rust.git#ad88ba18)
[INFO] [stderr]     Checking rust_ann v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/neural_net.rs:82:17
[INFO] [stdout]    |
[INFO] [stdout] 82 |         let _ = try!(self.layers[1].set_activity(input, &self.weights[0]));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/neural_net.rs:88:21
[INFO] [stdout]    |
[INFO] [stdout] 88 |             let _ = try!(self.layers[idx + 1].set_activity(&prev_activation, weight));
[INFO] [stdout]    |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/trainer.rs:44:28
[INFO] [stdout]    |
[INFO] [stdout] 44 |                 let pred = try!(self.net.predict(s_input));
[INFO] [stdout]    |                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/trainer.rs:45:25
[INFO] [stdout]    |
[INFO] [stdout] 45 |                 djdws = try!(self.cost.cost_prime(self.net, &s_input, &s_output, &pred));
[INFO] [stdout]    |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/main.rs:45:24
[INFO] [stdout]    |
[INFO] [stdout] 45 |         let mut file = try!(File::open(path));
[INFO] [stdout]    |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `utils::*`
[INFO] [stdout]   --> src/main.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | use utils::*;
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/neural_net.rs:46:26
[INFO] [stdout]    |
[INFO] [stdout] 46 |     fn new(desc: Vec<Box<Layer>>) -> Result<Self::Net, NNetError>;
[INFO] [stdout]    |                          ^^^^^ help: use `dyn`: `dyn Layer`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/neural_net.rs:51:35
[INFO] [stdout]    |
[INFO] [stdout] 51 |     fn get_layers(&self) -> &[Box<Layer>];
[INFO] [stdout]    |                                   ^^^^^ help: use `dyn`: `dyn Layer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/neural_net.rs:55:21
[INFO] [stdout]    |
[INFO] [stdout] 55 |     layers: Vec<Box<Layer>>,
[INFO] [stdout]    |                     ^^^^^ help: use `dyn`: `dyn Layer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/neural_net.rs:63:26
[INFO] [stdout]    |
[INFO] [stdout] 63 |     fn new(desc: Vec<Box<Layer>>) -> Result<Sequential, NNetError> {
[INFO] [stdout]    |                          ^^^^^ help: use `dyn`: `dyn Layer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/neural_net.rs:117:35
[INFO] [stdout]     |
[INFO] [stdout] 117 |     fn get_layers(&self) -> &[Box<Layer>] {
[INFO] [stdout]     |                                   ^^^^^ help: use `dyn`: `dyn Layer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `MSE_Reg` should have an upper camel case name
[INFO] [stdout]   --> src/cost_function.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub struct MSE_Reg {
[INFO] [stdout]    |            ^^^^^^^ help: convert the identifier to upper camel case: `MseReg`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/neural_net.rs:82:17
[INFO] [stdout]    |
[INFO] [stdout] 82 |         let _ = try!(self.layers[1].set_activity(input, &self.weights[0]));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/neural_net.rs:88:21
[INFO] [stdout]    |
[INFO] [stdout] 88 |             let _ = try!(self.layers[idx + 1].set_activity(&prev_activation, weight));
[INFO] [stdout]    |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/trainer.rs:44:28
[INFO] [stdout]    |
[INFO] [stdout] 44 |                 let pred = try!(self.net.predict(s_input));
[INFO] [stdout]    |                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/trainer.rs:45:25
[INFO] [stdout]    |
[INFO] [stdout] 45 |                 djdws = try!(self.cost.cost_prime(self.net, &s_input, &s_output, &pred));
[INFO] [stdout]    |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/main.rs:45:24
[INFO] [stdout]    |
[INFO] [stdout] 45 |         let mut file = try!(File::open(path));
[INFO] [stdout]    |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `utils::*`
[INFO] [stdout]   --> src/main.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | use utils::*;
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/neural_net.rs:46:26
[INFO] [stdout]    |
[INFO] [stdout] 46 |     fn new(desc: Vec<Box<Layer>>) -> Result<Self::Net, NNetError>;
[INFO] [stdout]    |                          ^^^^^ help: use `dyn`: `dyn Layer`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/neural_net.rs:51:35
[INFO] [stdout]    |
[INFO] [stdout] 51 |     fn get_layers(&self) -> &[Box<Layer>];
[INFO] [stdout]    |                                   ^^^^^ help: use `dyn`: `dyn Layer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/neural_net.rs:55:21
[INFO] [stdout]    |
[INFO] [stdout] 55 |     layers: Vec<Box<Layer>>,
[INFO] [stdout]    |                     ^^^^^ help: use `dyn`: `dyn Layer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/neural_net.rs:63:26
[INFO] [stdout]    |
[INFO] [stdout] 63 |     fn new(desc: Vec<Box<Layer>>) -> Result<Sequential, NNetError> {
[INFO] [stdout]    |                          ^^^^^ help: use `dyn`: `dyn Layer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/neural_net.rs:117:35
[INFO] [stdout]     |
[INFO] [stdout] 117 |     fn get_layers(&self) -> &[Box<Layer>] {
[INFO] [stdout]     |                                   ^^^^^ help: use `dyn`: `dyn Layer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `MSE_Reg` should have an upper camel case name
[INFO] [stdout]   --> src/cost_function.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub struct MSE_Reg {
[INFO] [stdout]    |            ^^^^^^^ help: convert the identifier to upper camel case: `MseReg`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nn_pred`
[INFO] [stdout]    --> src/main.rs:193:13
[INFO] [stdout]     |
[INFO] [stdout] 193 |         let nn_pred = max_pred_idx;
[INFO] [stdout]     |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_nn_pred`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `actual_pred`
[INFO] [stdout]    --> src/main.rs:194:13
[INFO] [stdout]     |
[INFO] [stdout] 194 |         let actual_pred = actual_idx;
[INFO] [stdout]     |             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_actual_pred`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `res`
[INFO] [stdout]   --> src/main.rs:57:17
[INFO] [stdout]    |
[INFO] [stdout] 57 |             let res: isize = enl.par_iter().map(|&(i, line)| {
[INFO] [stdout]    |                 ^^^ help: if this is intentional, prefix it with an underscore: `_res`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `djdws` is never read
[INFO] [stdout]   --> src/trainer.rs:40:13
[INFO] [stdout]    |
[INFO] [stdout] 40 |         let mut djdws: Vec<Matrix2d> = Vec::new();
[INFO] [stdout]    |             ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nn_pred`
[INFO] [stdout]    --> src/main.rs:193:13
[INFO] [stdout]     |
[INFO] [stdout] 193 |         let nn_pred = max_pred_idx;
[INFO] [stdout]     |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_nn_pred`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `actual_pred`
[INFO] [stdout]    --> src/main.rs:194:13
[INFO] [stdout]     |
[INFO] [stdout] 194 |         let actual_pred = actual_idx;
[INFO] [stdout]     |             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_actual_pred`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `res`
[INFO] [stdout]   --> src/main.rs:57:17
[INFO] [stdout]    |
[INFO] [stdout] 57 |             let res: isize = enl.par_iter().map(|&(i, line)| {
[INFO] [stdout]    |                 ^^^ help: if this is intentional, prefix it with an underscore: `_res`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `djdws` is never read
[INFO] [stdout]   --> src/trainer.rs:40:13
[INFO] [stdout]    |
[INFO] [stdout] 40 |         let mut djdws: Vec<Matrix2d> = Vec::new();
[INFO] [stdout]    |             ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `frobenius_norm`
[INFO] [stdout]   --> src/utils.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub fn frobenius_norm(m: &Matrix2d) -> f64 {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `vec_bin_op`
[INFO] [stdout]   --> src/utils.rs:48:8
[INFO] [stdout]    |
[INFO] [stdout] 48 | pub fn vec_bin_op<F>(u: &[f64], v: &[f64], f: F) -> Vec<f64>
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `set_params`
[INFO] [stdout]   --> src/utils.rs:73:4
[INFO] [stdout]    |
[INFO] [stdout] 73 | fn set_params<NN: NeuralNet>(nn: &mut NN, params: Vec<f64>) {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_params`
[INFO] [stdout]   --> src/utils.rs:88:4
[INFO] [stdout]    |
[INFO] [stdout] 88 | fn get_params<NN: NeuralNet>(nn: &NN) -> Vec<f64> {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `compute_gradients`
[INFO] [stdout]   --> src/utils.rs:96:4
[INFO] [stdout]    |
[INFO] [stdout] 96 | fn compute_gradients<NN: NeuralNet, C: CostFunction>(nn: &mut NN, cost: &mut C,input: &Matrix2d, output: &Matrix2d) -> Vec<f64> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `compute_numerical_gradients`
[INFO] [stdout]    --> src/utils.rs:107:4
[INFO] [stdout]     |
[INFO] [stdout] 107 | fn compute_numerical_gradients<NN: NeuralNet, C: CostFunction>(nn: &mut NN, cost: &mut C, x: &Matrix2d, y: &Matrix2d) -> Vec<f64> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `check_gradient`
[INFO] [stdout]    --> src/utils.rs:132:8
[INFO] [stdout]     |
[INFO] [stdout] 132 | pub fn check_gradient<NN: NeuralNet, C: CostFunction>(nn: &mut NN, cost: &mut C, x: &Matrix2d, y: &Matrix2d) -> f64 {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `normalized_train_data`
[INFO] [stdout]   --> src/main.rs:87:12
[INFO] [stdout]    |
[INFO] [stdout] 87 |     pub fn normalized_train_data(&self) -> (Matrix2d, Matrix2d) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `normalized_test_data`
[INFO] [stdout]   --> src/main.rs:91:12
[INFO] [stdout]    |
[INFO] [stdout] 91 |     pub fn normalized_test_data(&self) -> (Matrix2d, Matrix2d) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]   --> src/trainer.rs:68:16
[INFO] [stdout]    |
[INFO] [stdout] 68 |             if i >= 0 {
[INFO] [stdout]    |                ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_comparisons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 26 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `set_params`
[INFO] [stdout]   --> src/utils.rs:73:4
[INFO] [stdout]    |
[INFO] [stdout] 73 | fn set_params<NN: NeuralNet>(nn: &mut NN, params: Vec<f64>) {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_params`
[INFO] [stdout]   --> src/utils.rs:88:4
[INFO] [stdout]    |
[INFO] [stdout] 88 | fn get_params<NN: NeuralNet>(nn: &NN) -> Vec<f64> {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `compute_gradients`
[INFO] [stdout]   --> src/utils.rs:96:4
[INFO] [stdout]    |
[INFO] [stdout] 96 | fn compute_gradients<NN: NeuralNet, C: CostFunction>(nn: &mut NN, cost: &mut C,input: &Matrix2d, output: &Matrix2d) -> Vec<f64> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `compute_numerical_gradients`
[INFO] [stdout]    --> src/utils.rs:107:4
[INFO] [stdout]     |
[INFO] [stdout] 107 | fn compute_numerical_gradients<NN: NeuralNet, C: CostFunction>(nn: &mut NN, cost: &mut C, x: &Matrix2d, y: &Matrix2d) -> Vec<f64> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `check_gradient`
[INFO] [stdout]    --> src/utils.rs:132:8
[INFO] [stdout]     |
[INFO] [stdout] 132 | pub fn check_gradient<NN: NeuralNet, C: CostFunction>(nn: &mut NN, cost: &mut C, x: &Matrix2d, y: &Matrix2d) -> f64 {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `normalized_train_data`
[INFO] [stdout]   --> src/main.rs:87:12
[INFO] [stdout]    |
[INFO] [stdout] 87 |     pub fn normalized_train_data(&self) -> (Matrix2d, Matrix2d) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `normalized_test_data`
[INFO] [stdout]   --> src/main.rs:91:12
[INFO] [stdout]    |
[INFO] [stdout] 91 |     pub fn normalized_test_data(&self) -> (Matrix2d, Matrix2d) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]   --> src/trainer.rs:68:16
[INFO] [stdout]    |
[INFO] [stdout] 68 |             if i >= 0 {
[INFO] [stdout]    |                ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_comparisons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 24 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.25s
[INFO] running `Command { std: "docker" "inspect" "08fe4a8f1b2e2b8955179e906fc5d998f06253a8dc15c2604aefe282ab26881c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08fe4a8f1b2e2b8955179e906fc5d998f06253a8dc15c2604aefe282ab26881c", kill_on_drop: false }`
[INFO] [stdout] 08fe4a8f1b2e2b8955179e906fc5d998f06253a8dc15c2604aefe282ab26881c