[INFO] cloning repository https://github.com/Aboussejra/neural-net-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Aboussejra/neural-net-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAboussejra%2Fneural-net-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAboussejra%2Fneural-net-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 547026c5eda655ee4203933a1fd5c5a66d86250e
[INFO] checking Aboussejra/neural-net-rs against master#3129d37ef7075ee3cbaa3d6cbe1b5794f67192b0 for pr-143164
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAboussejra%2Fneural-net-rs" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Aboussejra/neural-net-rs
[INFO] finished tweaking git repo https://github.com/Aboussejra/neural-net-rs
[INFO] tweaked toml for git repo https://github.com/Aboussejra/neural-net-rs written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Aboussejra/neural-net-rs on toolchain 3129d37ef7075ee3cbaa3d6cbe1b5794f67192b0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3129d37ef7075ee3cbaa3d6cbe1b5794f67192b0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Aboussejra/neural-net-rs 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" "+3129d37ef7075ee3cbaa3d6cbe1b5794f67192b0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+3129d37ef7075ee3cbaa3d6cbe1b5794f67192b0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 15323d3da6d57c99dde6e3e1dbf24020b21f3aa77d2043ed7cfb3ff94e9ea5e2
[INFO] running `Command { std: "docker" "start" "-a" "15323d3da6d57c99dde6e3e1dbf24020b21f3aa77d2043ed7cfb3ff94e9ea5e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "15323d3da6d57c99dde6e3e1dbf24020b21f3aa77d2043ed7cfb3ff94e9ea5e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15323d3da6d57c99dde6e3e1dbf24020b21f3aa77d2043ed7cfb3ff94e9ea5e2", kill_on_drop: false }`
[INFO] [stdout] 15323d3da6d57c99dde6e3e1dbf24020b21f3aa77d2043ed7cfb3ff94e9ea5e2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+3129d37ef7075ee3cbaa3d6cbe1b5794f67192b0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f7cb40341d34d42d44398b0cacea7267446520de440d3acaf7b3a640d91ab284
[INFO] running `Command { std: "docker" "start" "-a" "f7cb40341d34d42d44398b0cacea7267446520de440d3acaf7b3a640d91ab284", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.11
[INFO] [stderr]    Compiling libm v0.2.5
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.10
[INFO] [stderr]    Compiling rayon-core v1.9.3
[INFO] [stderr]    Compiling rayon v1.5.3
[INFO] [stderr]     Checking either v1.8.0
[INFO] [stderr]     Checking matrixmultiply v0.3.2
[INFO] [stderr]     Checking getrandom v0.2.7
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking crossbeam-channel v0.5.6
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking crossbeam-deque v0.8.2
[INFO] [stderr]     Checking num-integer v0.1.45
[INFO] [stderr]     Checking num-complex v0.4.2
[INFO] [stderr]     Checking rand_distr v0.4.3
[INFO] [stderr]     Checking ndarray v0.15.6
[INFO] [stderr]     Checking ndarray-rand v0.14.0
[INFO] [stderr]     Checking neural-net-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `RandomExt` and `rand_distr::Uniform`
[INFO] [stdout]   --> src/data_structures/utilities.rs:81:24
[INFO] [stdout]    |
[INFO] [stdout] 81 |     use ndarray_rand::{rand_distr::Uniform, RandomExt};
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Array`, `Ix2`, and `array`
[INFO] [stdout]   --> src/data_structures/utilities.rs:80:19
[INFO] [stdout]    |
[INFO] [stdout] 80 |     use ndarray::{array, Array, Ix2};
[INFO] [stdout]    |                   ^^^^^  ^^^^^  ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `RandomExt` and `rand_distr::Uniform`
[INFO] [stdout]   --> src/data_structures/utilities.rs:81:24
[INFO] [stdout]    |
[INFO] [stdout] 81 |     use ndarray_rand::{rand_distr::Uniform, RandomExt};
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `DeepNeuralNet`, `compute_cost`, and `linear_forward`
[INFO] [stdout]   --> src/data_structures/utilities.rs:84:21
[INFO] [stdout]    |
[INFO] [stdout] 84 |         utilities::{compute_cost, linear_forward},
[INFO] [stdout]    |                     ^^^^^^^^^^^^  ^^^^^^^^^^^^^^
[INFO] [stdout] 85 |         DeepNeuralNet,
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bias`
[INFO] [stdout]   --> src/data_structures/utilities.rs:66:54
[INFO] [stdout]    |
[INFO] [stdout] 66 |     let (activations_previous_layer, weights_matrix, bias) = cache_forward_prop;
[INFO] [stdout]    |                                                      ^^^^ help: if this is intentional, prefix it with an underscore: `_bias`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `linear_backward` is never used
[INFO] [stdout]   --> src/data_structures/utilities.rs:62:8
[INFO] [stdout]    |
[INFO] [stdout] 62 | pub fn linear_backward(
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bias`
[INFO] [stdout]   --> src/data_structures/utilities.rs:66:54
[INFO] [stdout]    |
[INFO] [stdout] 66 |     let (activations_previous_layer, weights_matrix, bias) = cache_forward_prop;
[INFO] [stdout]    |                                                      ^^^^ help: if this is intentional, prefix it with an underscore: `_bias`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `compute_cost` is never used
[INFO] [stdout]   --> src/data_structures/utilities.rs:35:8
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub fn compute_cost(
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `linear_backward` is never used
[INFO] [stdout]   --> src/data_structures/utilities.rs:62:8
[INFO] [stdout]    |
[INFO] [stdout] 62 | pub fn linear_backward(
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.51s
[INFO] running `Command { std: "docker" "inspect" "f7cb40341d34d42d44398b0cacea7267446520de440d3acaf7b3a640d91ab284", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7cb40341d34d42d44398b0cacea7267446520de440d3acaf7b3a640d91ab284", kill_on_drop: false }`
[INFO] [stdout] f7cb40341d34d42d44398b0cacea7267446520de440d3acaf7b3a640d91ab284
