[INFO] cloning repository https://github.com/mrahhal/neural-network-from-scratch
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mrahhal/neural-network-from-scratch" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmrahhal%2Fneural-network-from-scratch", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmrahhal%2Fneural-network-from-scratch'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5eef4ee2114653aa802076319b6f2beeedec4f73
[INFO] checking mrahhal/neural-network-from-scratch against 1.95.0 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmrahhal%2Fneural-network-from-scratch" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-5-tc1/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/mrahhal/neural-network-from-scratch
[INFO] finished tweaking git repo https://github.com/mrahhal/neural-network-from-scratch
[INFO] tweaked toml for git repo https://github.com/mrahhal/neural-network-from-scratch written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/mrahhal/neural-network-from-scratch on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/mrahhal/neural-network-from-scratch 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" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rstest v0.16.0
[INFO] [stderr]   Downloaded wide v0.7.5
[INFO] [stderr]   Downloaded rstest_macros v0.16.0
[INFO] [stderr]   Downloaded nalgebra v0.31.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d8e4a55461242838f14b8967632e79158c863430cb47a068a158b5260e753d09
[INFO] running `Command { std: "docker" "start" "-a" "d8e4a55461242838f14b8967632e79158c863430cb47a068a158b5260e753d09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d8e4a55461242838f14b8967632e79158c863430cb47a068a158b5260e753d09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d8e4a55461242838f14b8967632e79158c863430cb47a068a158b5260e753d09", kill_on_drop: false }`
[INFO] [stdout] d8e4a55461242838f14b8967632e79158c863430cb47a068a158b5260e753d09
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] efd708fe872d9c167b35e2c2fe54850839bfc7c76a2f13e6eae6f4a5dbe08298
[INFO] running `Command { std: "docker" "start" "-a" "efd708fe872d9c167b35e2c2fe54850839bfc7c76a2f13e6eae6f4a5dbe08298", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.47
[INFO] [stderr]    Compiling syn v1.0.105
[INFO] [stderr]    Compiling libm v0.2.6
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling futures-core v0.3.25
[INFO] [stderr]    Compiling futures-channel v0.3.25
[INFO] [stderr]    Compiling futures-task v0.3.25
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling futures-util v0.3.25
[INFO] [stderr]     Checking bytemuck v1.12.3
[INFO] [stderr]     Checking futures-sink v0.3.25
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]     Checking getrandom v0.2.8
[INFO] [stderr]     Checking futures-io v0.3.25
[INFO] [stderr]    Compiling rstest_macros v0.16.0
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]    Compiling paste v1.0.9
[INFO] [stderr]     Checking matrixmultiply v0.3.2
[INFO] [stderr]     Checking assert_matches v1.5.0
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking safe_arch v0.6.0
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]     Checking wide v0.7.5
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking num-complex v0.4.2
[INFO] [stderr]     Checking approx v0.5.1
[INFO] [stderr]     Checking rand_distr v0.4.3
[INFO] [stderr]     Checking simba v0.7.3
[INFO] [stderr]    Compiling futures-macro v0.3.25
[INFO] [stderr]    Compiling nalgebra-macros v0.1.0
[INFO] [stderr]     Checking nalgebra v0.31.4
[INFO] [stderr]     Checking futures-executor v0.3.25
[INFO] [stderr]     Checking futures v0.3.25
[INFO] [stderr]     Checking rstest v0.16.0
[INFO] [stderr]     Checking neural-network-from-scratch v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `SigmoidActivator` is never constructed
[INFO] [stdout]    --> src/neural_networks/mlp.rs:382:8
[INFO] [stdout]     |
[INFO] [stdout] 382 | struct SigmoidActivator;
[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 functions `mean_loss` and `total_loss` are never used
[INFO] [stdout]    --> src/neural_networks/mlp.rs:417:8
[INFO] [stdout]     |
[INFO] [stdout] 411 | pub trait Loss {
[INFO] [stdout]     |           ---- associated functions in this trait
[INFO] [stdout] ...
[INFO] [stdout] 417 |     fn mean_loss(sample_losses: &[f64]) -> f64 {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 423 |     fn total_loss(sample_losses: &[f64]) -> f64 {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ConstantRateOptimizer` is never constructed
[INFO] [stdout]    --> src/neural_networks/mlp.rs:483:8
[INFO] [stdout]     |
[INFO] [stdout] 483 | struct ConstantRateOptimizer {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/neural_networks/mlp.rs:494:8
[INFO] [stdout]     |
[INFO] [stdout] 493 | impl ConstantRateOptimizer {
[INFO] [stdout]     | -------------------------- associated function in this implementation
[INFO] [stdout] 494 |     fn new(learning_rate: f64) -> Self {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SigmoidActivator` is never constructed
[INFO] [stdout]    --> src/neural_networks/mlp.rs:382:8
[INFO] [stdout]     |
[INFO] [stdout] 382 | struct SigmoidActivator;
[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 functions `mean_loss` and `total_loss` are never used
[INFO] [stdout]    --> src/neural_networks/mlp.rs:417:8
[INFO] [stdout]     |
[INFO] [stdout] 411 | pub trait Loss {
[INFO] [stdout]     |           ---- associated functions in this trait
[INFO] [stdout] ...
[INFO] [stdout] 417 |     fn mean_loss(sample_losses: &[f64]) -> f64 {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 423 |     fn total_loss(sample_losses: &[f64]) -> f64 {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ConstantRateOptimizer` is never constructed
[INFO] [stdout]    --> src/neural_networks/mlp.rs:483:8
[INFO] [stdout]     |
[INFO] [stdout] 483 | struct ConstantRateOptimizer {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/neural_networks/mlp.rs:494:8
[INFO] [stdout]     |
[INFO] [stdout] 493 | impl ConstantRateOptimizer {
[INFO] [stdout]     | -------------------------- associated function in this implementation
[INFO] [stdout] 494 |     fn new(learning_rate: f64) -> Self {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 18.44s
[INFO] running `Command { std: "docker" "inspect" "efd708fe872d9c167b35e2c2fe54850839bfc7c76a2f13e6eae6f4a5dbe08298", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "efd708fe872d9c167b35e2c2fe54850839bfc7c76a2f13e6eae6f4a5dbe08298", kill_on_drop: false }`
[INFO] [stdout] efd708fe872d9c167b35e2c2fe54850839bfc7c76a2f13e6eae6f4a5dbe08298
