[INFO] cloning repository https://github.com/notsoharshdevisha/nn
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/notsoharshdevisha/nn" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnotsoharshdevisha%2Fnn", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnotsoharshdevisha%2Fnn'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 78f0675c2527f6fc591d01aca19768054c23a362
[INFO] checking notsoharshdevisha/nn against try#15e8bc6907ab2b3623cb52acc726f4787458df64 for pr-141352
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnotsoharshdevisha%2Fnn" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/notsoharshdevisha/nn on toolchain 15e8bc6907ab2b3623cb52acc726f4787458df64
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+15e8bc6907ab2b3623cb52acc726f4787458df64" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/notsoharshdevisha/nn
[INFO] finished tweaking git repo https://github.com/notsoharshdevisha/nn
[INFO] tweaked toml for git repo https://github.com/notsoharshdevisha/nn written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/notsoharshdevisha/nn 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" "+15e8bc6907ab2b3623cb52acc726f4787458df64" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+15e8bc6907ab2b3623cb52acc726f4787458df64" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e8d1ba37e85eff771330b684400fb67da8abe967bd76658df7e50539bd980a7b
[INFO] running `Command { std: "docker" "start" "-a" "e8d1ba37e85eff771330b684400fb67da8abe967bd76658df7e50539bd980a7b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e8d1ba37e85eff771330b684400fb67da8abe967bd76658df7e50539bd980a7b", kill_on_drop: false }`
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[INFO] [stdout] e8d1ba37e85eff771330b684400fb67da8abe967bd76658df7e50539bd980a7b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+15e8bc6907ab2b3623cb52acc726f4787458df64" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 187313f4e837717c4300aad61e4179b4bf3327dc6c66f9cdb01aa6e2bff53f3d
[INFO] running `Command { std: "docker" "start" "-a" "187313f4e837717c4300aad61e4179b4bf3327dc6c66f9cdb01aa6e2bff53f3d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling libc v0.2.158
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]    Compiling syn v2.0.76
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]    Compiling zerocopy-derive v0.7.35
[INFO] [stderr]     Checking zerocopy v0.7.35
[INFO] [stderr]     Checking ppv-lite86 v0.2.20
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking nn v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `generate_network_weights_and_biases` and `generate_rand_matrix`
[INFO] [stdout]  --> src/test_nn.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     generate_network_weights_and_biases,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 9 |     generate_rand_matrix,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] help: if this is a test module, consider adding a `#[cfg(test)]` to the containing module
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | mod test_nn;
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]   --> src/mat.rs:83:9
[INFO] [stdout]    |
[INFO] [stdout] 83 |     use super::*;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `generate_network_weights_and_biases` and `generate_rand_matrix`
[INFO] [stdout]  --> src/test_nn.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     generate_network_weights_and_biases,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 9 |     generate_rand_matrix,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]  --> src/lib.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     use super::*;
[INFO] [stdout]   |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `output_size`
[INFO] [stdout]    --> src/utils/utils.rs:165:5
[INFO] [stdout]     |
[INFO] [stdout] 165 |     output_size: &usize,
[INFO] [stdout]     |     ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_output_size`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `train_batch` is never used
[INFO] [stdout]   --> src/test_nn.rs:13:4
[INFO] [stdout]    |
[INFO] [stdout] 13 | fn train_batch(
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `train` is never used
[INFO] [stdout]   --> src/test_nn.rs:37:4
[INFO] [stdout]    |
[INFO] [stdout] 37 | fn train(
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `update_err` is never used
[INFO] [stdout]   --> src/test_nn.rs:64:4
[INFO] [stdout]    |
[INFO] [stdout] 64 | fn update_err(curr_err: &Vec<Vec<f64>>, curr_layer_weights: &Vec<Vec<f64>>) -> Vec<Vec<f64>> {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `update_weights` is never used
[INFO] [stdout]   --> src/test_nn.rs:69:4
[INFO] [stdout]    |
[INFO] [stdout] 69 | fn update_weights(grad: &Vec<Vec<f64>>, weights: &mut Vec<Vec<f64>>, learning_rate: f64) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `update_biases` is never used
[INFO] [stdout]   --> src/test_nn.rs:77:4
[INFO] [stdout]    |
[INFO] [stdout] 77 | fn update_biases(grad: &Vec<Vec<f64>>, bias: &mut Vec<Vec<f64>>, learning_rate: f64) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `back_propagate` is never used
[INFO] [stdout]   --> src/test_nn.rs:85:4
[INFO] [stdout]    |
[INFO] [stdout] 85 | fn back_propagate(
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `forward_pass` is never used
[INFO] [stdout]    --> src/test_nn.rs:111:4
[INFO] [stdout]     |
[INFO] [stdout] 111 | fn forward_pass(
[INFO] [stdout]     |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `predict` is never used
[INFO] [stdout]    --> src/test_nn.rs:134:4
[INFO] [stdout]     |
[INFO] [stdout] 134 | fn predict(
[INFO] [stdout]     |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `batch_err_per` is never used
[INFO] [stdout]  --> src/utils/utils.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn batch_err_per(batch_output: &Vec<Vec<f64>>, batch_targets: &[Vec<f64>]) -> f64 {
[INFO] [stdout]   |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `batch_err` is never used
[INFO] [stdout]   --> src/utils/utils.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub fn batch_err(batch_output: &Vec<Vec<f64>>, batch_targets: &[Vec<f64>]) -> Vec<Vec<f64>> {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `min_max_scaler` is never used
[INFO] [stdout]   --> src/utils/utils.rs:34:8
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub fn min_max_scaler(matrix: &mut Vec<Vec<f64>>) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `transpose` is never used
[INFO] [stdout]   --> src/utils/utils.rs:61:8
[INFO] [stdout]    |
[INFO] [stdout] 61 | pub fn transpose(matrix: &Vec<Vec<f64>>) -> Vec<Vec<f64>> {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `df_relu` is never used
[INFO] [stdout]   --> src/utils/utils.rs:76:4
[INFO] [stdout]    |
[INFO] [stdout] 76 | fn df_relu(x: &mut f64) {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `relu` is never used
[INFO] [stdout]   --> src/utils/utils.rs:82:4
[INFO] [stdout]    |
[INFO] [stdout] 82 | fn relu(x: &mut f64) {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `df_activate` is never used
[INFO] [stdout]   --> src/utils/utils.rs:88:8
[INFO] [stdout]    |
[INFO] [stdout] 88 | pub fn df_activate(matrix: &mut Vec<Vec<f64>>) {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `add_bias` is never used
[INFO] [stdout]   --> src/utils/utils.rs:99:8
[INFO] [stdout]    |
[INFO] [stdout] 99 | pub fn add_bias(bias: &Vec<Vec<f64>>, layer_batch_output: &mut Vec<Vec<f64>>) {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `activate` is never used
[INFO] [stdout]    --> src/utils/utils.rs:117:8
[INFO] [stdout]     |
[INFO] [stdout] 117 | pub fn activate(matrix: &mut Vec<Vec<f64>>) {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `dot` is never used
[INFO] [stdout]    --> src/utils/utils.rs:128:8
[INFO] [stdout]     |
[INFO] [stdout] 128 | pub fn dot(mat1: &Vec<Vec<f64>>, mat2: &Vec<Vec<f64>>) -> Vec<Vec<f64>> {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `generate_rand_matrix` is never used
[INFO] [stdout]    --> src/utils/utils.rs:151:8
[INFO] [stdout]     |
[INFO] [stdout] 151 | pub fn generate_rand_matrix(rows: &usize, cols: &usize) -> Vec<Vec<f64>> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `generate_network_weights_and_biases` is never used
[INFO] [stdout]    --> src/utils/utils.rs:162:8
[INFO] [stdout]     |
[INFO] [stdout] 162 | pub fn generate_network_weights_and_biases(
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `NN` is never constructed
[INFO] [stdout]  --> src/nn.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct NN {
[INFO] [stdout]   |        ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]  --> src/nn.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | impl NN {
[INFO] [stdout]   | ------- associated function in this implementation
[INFO] [stdout] 5 |     pub fn new() -> Self {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `check_dimensions` and `new` are never used
[INFO] [stdout]   --> src/mat.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl<T: Float> Mat<T> {
[INFO] [stdout]    | --------------------- associated functions in this implementation
[INFO] [stdout] 14 |     fn check_dimensions(data: &[Vec<T>]) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 27 |     pub fn new(data: Vec<Vec<T>>) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `output_size`
[INFO] [stdout]    --> src/utils/utils.rs:165:5
[INFO] [stdout]     |
[INFO] [stdout] 165 |     output_size: &usize,
[INFO] [stdout]     |     ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_output_size`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `NN` is never constructed
[INFO] [stdout]  --> src/nn.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct NN {
[INFO] [stdout]   |        ^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]  --> src/nn.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | impl NN {
[INFO] [stdout]   | ------- associated function in this implementation
[INFO] [stdout] 5 |     pub fn new() -> Self {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.41s
[INFO] running `Command { std: "docker" "inspect" "187313f4e837717c4300aad61e4179b4bf3327dc6c66f9cdb01aa6e2bff53f3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "187313f4e837717c4300aad61e4179b4bf3327dc6c66f9cdb01aa6e2bff53f3d", kill_on_drop: false }`
[INFO] [stdout] 187313f4e837717c4300aad61e4179b4bf3327dc6c66f9cdb01aa6e2bff53f3d