[INFO] cloning repository https://github.com/earthtraveller1/neural-net
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/earthtraveller1/neural-net" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fearthtraveller1%2Fneural-net", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fearthtraveller1%2Fneural-net'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d3f1be8cefb5857872f331a248da65c2eaa506b9
[INFO] testing earthtraveller1/neural-net against try#16fbf98f22730e073c09e7b03f0eafb87a295545 for pr-145628
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fearthtraveller1%2Fneural-net" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/earthtraveller1/neural-net
[INFO] finished tweaking git repo https://github.com/earthtraveller1/neural-net
[INFO] tweaked toml for git repo https://github.com/earthtraveller1/neural-net written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/earthtraveller1/neural-net on toolchain 16fbf98f22730e073c09e7b03f0eafb87a295545
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+16fbf98f22730e073c09e7b03f0eafb87a295545" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/earthtraveller1/neural-net 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" "+16fbf98f22730e073c09e7b03f0eafb87a295545" "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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+16fbf98f22730e073c09e7b03f0eafb87a295545" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 26ad164424fa26caaee39064de07d0df24791a3b8254e401c0b7c00149675bef
[INFO] running `Command { std: "docker" "start" "-a" "26ad164424fa26caaee39064de07d0df24791a3b8254e401c0b7c00149675bef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "26ad164424fa26caaee39064de07d0df24791a3b8254e401c0b7c00149675bef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "26ad164424fa26caaee39064de07d0df24791a3b8254e401c0b7c00149675bef", kill_on_drop: false }`
[INFO] [stdout] 26ad164424fa26caaee39064de07d0df24791a3b8254e401c0b7c00149675bef
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+16fbf98f22730e073c09e7b03f0eafb87a295545" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5f4cfe0360f4d33daccca1191466a8cc2ebf96036424954f425a18723d4e4d5b
[INFO] running `Command { std: "docker" "start" "-a" "5f4cfe0360f4d33daccca1191466a8cc2ebf96036424954f425a18723d4e4d5b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling getrandom v0.2.8
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling neural_net v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable `sum` is assigned to, but never used
[INFO] [stdout]   --> src/math.rs:97:21
[INFO] [stdout]    |
[INFO] [stdout] 97 |             let mut sum = 0.0;
[INFO] [stdout]    |                     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_sum` instead
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/math.rs:94:13
[INFO] [stdout]    |
[INFO] [stdout] 94 |         let mut result = Vec::with_capacity(self.rows);
[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: struct `Layer` is never constructed
[INFO] [stdout]  --> src/main.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | struct Layer {
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `pass_data_through` are never used
[INFO] [stdout]   --> src/main.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl Layer {
[INFO] [stdout]    | ---------- associated items in this implementation
[INFO] [stdout] 12 |     fn new(input_count: usize, output_count: usize) -> Layer {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 19 |     fn pass_data_through(&self, data: &Vector) -> Vector {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Vector` is never constructed
[INFO] [stdout]  --> src/math.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct Vector {
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `from_vec` and `from_random` are never used
[INFO] [stdout]   --> src/math.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl Vector {
[INFO] [stdout]    | ----------- associated functions in this implementation
[INFO] [stdout] 13 |     /// Creates a new Vector with the specified data.
[INFO] [stdout] 14 |     pub fn from_vec(data: &Vec<f64>) -> Vector {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 19 |     pub fn from_random(len: usize) -> Vector {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Matrix` is never constructed
[INFO] [stdout]   --> src/math.rs:53:12
[INFO] [stdout]    |
[INFO] [stdout] 53 | pub struct Matrix {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `from_2d_slice`, `get`, `get_mut`, and `mul_with_vector` are never used
[INFO] [stdout]   --> src/math.rs:61:12
[INFO] [stdout]    |
[INFO] [stdout] 59 | impl Matrix {
[INFO] [stdout]    | ----------- associated items in this implementation
[INFO] [stdout] 60 |     /// Creates a new Matrix and fills it with random data.
[INFO] [stdout] 61 |     pub fn new(rows: usize, cols: usize) -> Matrix {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 72 |     pub fn from_2d_slice(slice: &[&[f64]]) -> Matrix {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 85 |     pub fn get(&self, row: usize, col: usize) -> f64 {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 89 |     pub fn get_mut(&mut self, row: usize, col: usize) -> &mut f64 {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 93 |     pub fn mul_with_vector(&self, vector: &Vector) -> Vector {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `logistic` is never used
[INFO] [stdout]    --> src/math.rs:108:8
[INFO] [stdout]     |
[INFO] [stdout] 108 | pub fn logistic(x: f64) -> f64 {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `logistic_derivative` is never used
[INFO] [stdout]    --> src/math.rs:112:8
[INFO] [stdout]     |
[INFO] [stdout] 112 | pub fn logistic_derivative(x: f64) -> f64 {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.28s
[INFO] running `Command { std: "docker" "inspect" "5f4cfe0360f4d33daccca1191466a8cc2ebf96036424954f425a18723d4e4d5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f4cfe0360f4d33daccca1191466a8cc2ebf96036424954f425a18723d4e4d5b", kill_on_drop: false }`
[INFO] [stdout] 5f4cfe0360f4d33daccca1191466a8cc2ebf96036424954f425a18723d4e4d5b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+16fbf98f22730e073c09e7b03f0eafb87a295545" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 86e25ea8172341dd5141b685156aa9aaa84c7871bfbe8445249fd93e2233530a
[INFO] running `Command { std: "docker" "start" "-a" "86e25ea8172341dd5141b685156aa9aaa84c7871bfbe8445249fd93e2233530a", kill_on_drop: false }`
[INFO] [stderr]    Compiling neural_net v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable `sum` is assigned to, but never used
[INFO] [stdout]   --> src/math.rs:97:21
[INFO] [stdout]    |
[INFO] [stdout] 97 |             let mut sum = 0.0;
[INFO] [stdout]    |                     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_sum` instead
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/math.rs:94:13
[INFO] [stdout]    |
[INFO] [stdout] 94 |         let mut result = Vec::with_capacity(self.rows);
[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: struct `Layer` is never constructed
[INFO] [stdout]  --> src/main.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | struct Layer {
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `pass_data_through` are never used
[INFO] [stdout]   --> src/main.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl Layer {
[INFO] [stdout]    | ---------- associated items in this implementation
[INFO] [stdout] 12 |     fn new(input_count: usize, output_count: usize) -> Layer {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 19 |     fn pass_data_through(&self, data: &Vector) -> Vector {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Vector` is never constructed
[INFO] [stdout]  --> src/math.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct Vector {
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `from_vec` and `from_random` are never used
[INFO] [stdout]   --> src/math.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl Vector {
[INFO] [stdout]    | ----------- associated functions in this implementation
[INFO] [stdout] 13 |     /// Creates a new Vector with the specified data.
[INFO] [stdout] 14 |     pub fn from_vec(data: &Vec<f64>) -> Vector {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 19 |     pub fn from_random(len: usize) -> Vector {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Matrix` is never constructed
[INFO] [stdout]   --> src/math.rs:53:12
[INFO] [stdout]    |
[INFO] [stdout] 53 | pub struct Matrix {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `from_2d_slice`, `get`, `get_mut`, and `mul_with_vector` are never used
[INFO] [stdout]   --> src/math.rs:61:12
[INFO] [stdout]    |
[INFO] [stdout] 59 | impl Matrix {
[INFO] [stdout]    | ----------- associated items in this implementation
[INFO] [stdout] 60 |     /// Creates a new Matrix and fills it with random data.
[INFO] [stdout] 61 |     pub fn new(rows: usize, cols: usize) -> Matrix {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 72 |     pub fn from_2d_slice(slice: &[&[f64]]) -> Matrix {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 85 |     pub fn get(&self, row: usize, col: usize) -> f64 {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 89 |     pub fn get_mut(&mut self, row: usize, col: usize) -> &mut f64 {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 93 |     pub fn mul_with_vector(&self, vector: &Vector) -> Vector {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `logistic` is never used
[INFO] [stdout]    --> src/math.rs:108:8
[INFO] [stdout]     |
[INFO] [stdout] 108 | pub fn logistic(x: f64) -> f64 {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `logistic_derivative` is never used
[INFO] [stdout]    --> src/math.rs:112:8
[INFO] [stdout]     |
[INFO] [stdout] 112 | pub fn logistic_derivative(x: f64) -> f64 {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.27s
[INFO] running `Command { std: "docker" "inspect" "86e25ea8172341dd5141b685156aa9aaa84c7871bfbe8445249fd93e2233530a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "86e25ea8172341dd5141b685156aa9aaa84c7871bfbe8445249fd93e2233530a", kill_on_drop: false }`
[INFO] [stdout] 86e25ea8172341dd5141b685156aa9aaa84c7871bfbe8445249fd93e2233530a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+16fbf98f22730e073c09e7b03f0eafb87a295545" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5e0c5b58488abcd82b26db3a5c3dee7e19b140e302d41adcd1637a11974dc789
[INFO] running `Command { std: "docker" "start" "-a" "5e0c5b58488abcd82b26db3a5c3dee7e19b140e302d41adcd1637a11974dc789", kill_on_drop: false }`
[INFO] [stderr] warning: variable `sum` is assigned to, but never used
[INFO] [stderr]   --> src/math.rs:97:21
[INFO] [stderr]    |
[INFO] [stderr] 97 |             let mut sum = 0.0;
[INFO] [stderr]    |                     ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: consider using `_sum` instead
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/math.rs:94:13
[INFO] [stderr]    |
[INFO] [stderr] 94 |         let mut result = Vec::with_capacity(self.rows);
[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: struct `Layer` is never constructed
[INFO] [stderr]  --> src/main.rs:6:8
[INFO] [stderr]   |
[INFO] [stderr] 6 | struct Layer {
[INFO] [stderr]   |        ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `new` and `pass_data_through` are never used
[INFO] [stderr]   --> src/main.rs:12:8
[INFO] [stderr]    |
[INFO] [stderr] 11 | impl Layer {
[INFO] [stderr]    | ---------- associated items in this implementation
[INFO] [stderr] 12 |     fn new(input_count: usize, output_count: usize) -> Layer {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] ...
[INFO] [stderr] 19 |     fn pass_data_through(&self, data: &Vector) -> Vector {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Vector` is never constructed
[INFO] [stderr]  --> src/math.rs:8:12
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub struct Vector {
[INFO] [stderr]   |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated functions `from_vec` and `from_random` are never used
[INFO] [stderr]   --> src/math.rs:14:12
[INFO] [stderr]    |
[INFO] [stderr] 12 | impl Vector {
[INFO] [stderr]    | ----------- associated functions in this implementation
[INFO] [stderr] 13 |     /// Creates a new Vector with the specified data.
[INFO] [stderr] 14 |     pub fn from_vec(data: &Vec<f64>) -> Vector {
[INFO] [stderr]    |            ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 19 |     pub fn from_random(len: usize) -> Vector {
[INFO] [stderr]    |            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Matrix` is never constructed
[INFO] [stderr]   --> src/math.rs:53:12
[INFO] [stderr]    |
[INFO] [stderr] 53 | pub struct Matrix {
[INFO] [stderr]    |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `new`, `from_2d_slice`, `get`, `get_mut`, and `mul_with_vector` are never used
[INFO] [stderr]   --> src/math.rs:61:12
[INFO] [stderr]    |
[INFO] [stderr] 59 | impl Matrix {
[INFO] [stderr]    | ----------- associated items in this implementation
[INFO] [stderr] 60 |     /// Creates a new Matrix and fills it with random data.
[INFO] [stderr] 61 |     pub fn new(rows: usize, cols: usize) -> Matrix {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] ...
[INFO] [stderr] 72 |     pub fn from_2d_slice(slice: &[&[f64]]) -> Matrix {
[INFO] [stderr]    |            ^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 85 |     pub fn get(&self, row: usize, col: usize) -> f64 {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] ...
[INFO] [stderr] 89 |     pub fn get_mut(&mut self, row: usize, col: usize) -> &mut f64 {
[INFO] [stderr]    |            ^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 93 |     pub fn mul_with_vector(&self, vector: &Vector) -> Vector {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `logistic` is never used
[INFO] [stderr]    --> src/math.rs:108:8
[INFO] [stderr]     |
[INFO] [stderr] 108 | pub fn logistic(x: f64) -> f64 {
[INFO] [stderr]     |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `logistic_derivative` is never used
[INFO] [stderr]    --> src/math.rs:112:8
[INFO] [stderr]     |
[INFO] [stderr] 112 | pub fn logistic_derivative(x: f64) -> f64 {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `neural_net` (bin "neural_net" test) generated 10 warnings (run `cargo fix --bin "neural_net" --tests` to apply 1 suggestion)
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/neural_net-1b47c815c0724ad2)
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "5e0c5b58488abcd82b26db3a5c3dee7e19b140e302d41adcd1637a11974dc789", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e0c5b58488abcd82b26db3a5c3dee7e19b140e302d41adcd1637a11974dc789", kill_on_drop: false }`
[INFO] [stdout] 5e0c5b58488abcd82b26db3a5c3dee7e19b140e302d41adcd1637a11974dc789