[INFO] cloning repository https://github.com/Leo-Hintz/smlr
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Leo-Hintz/smlr" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLeo-Hintz%2Fsmlr", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLeo-Hintz%2Fsmlr'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 973a4d9bb4cb482c4d5927d3ca4a72827de20dd2
[INFO] checking Leo-Hintz/smlr against master#b4fefcd60bfd770510f7dc540e887dd3ba4fe5c1 for pr-156992
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLeo-Hintz%2Fsmlr" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Leo-Hintz/smlr
[INFO] finished tweaking git repo https://github.com/Leo-Hintz/smlr
[INFO] tweaked toml for git repo https://github.com/Leo-Hintz/smlr written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Leo-Hintz/smlr on toolchain b4fefcd60bfd770510f7dc540e887dd3ba4fe5c1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b4fefcd60bfd770510f7dc540e887dd3ba4fe5c1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Leo-Hintz/smlr 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" "+b4fefcd60bfd770510f7dc540e887dd3ba4fe5c1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded svg v0.7.2
[INFO] [stderr]   Downloaded plotlib v0.5.1
[INFO] [stderr]   Downloaded rug v1.26.1
[INFO] [stderr]   Downloaded gmp-mpfr-sys v1.6.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+b4fefcd60bfd770510f7dc540e887dd3ba4fe5c1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c3d6abe9f8254b729b0a24e7b48147aef28a8e9ca290dcdb859ce0e87fc953c2
[INFO] running `Command { std: "docker" "start" "-a" "c3d6abe9f8254b729b0a24e7b48147aef28a8e9ca290dcdb859ce0e87fc953c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c3d6abe9f8254b729b0a24e7b48147aef28a8e9ca290dcdb859ce0e87fc953c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c3d6abe9f8254b729b0a24e7b48147aef28a8e9ca290dcdb859ce0e87fc953c2", kill_on_drop: false }`
[INFO] [stdout] c3d6abe9f8254b729b0a24e7b48147aef28a8e9ca290dcdb859ce0e87fc953c2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+b4fefcd60bfd770510f7dc540e887dd3ba4fe5c1" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6a8d2539c6da595ea9eb1407d9c8b818a85a583faf49b54674365586572cbf6a
[INFO] running `Command { std: "docker" "start" "-a" "6a8d2539c6da595ea9eb1407d9c8b818a85a583faf49b54674365586572cbf6a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.169
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling gmp-mpfr-sys v1.6.4
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling syn v2.0.90
[INFO] [stderr]    Compiling zerocopy v0.8.23
[INFO] [stderr]     Checking miniz_oxide v0.8.2
[INFO] [stderr]     Checking addr2line v0.24.2
[INFO] [stderr]     Checking object v0.36.5
[INFO] [stderr]    Compiling matrixmultiply v0.3.9
[INFO] [stderr]    Compiling az v1.2.1
[INFO] [stderr]     Checking rustc-demangle v0.1.24
[INFO] [stderr]    Compiling serde v1.0.217
[INFO] [stderr]     Checking rand_core v0.9.3
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking num-complex v0.4.6
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]    Compiling rug v1.26.1
[INFO] [stderr]     Checking num-bigint v0.4.6
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]     Checking num-iter v0.1.45
[INFO] [stderr]     Checking svg v0.7.2
[INFO] [stderr]     Checking ndarray v0.15.6
[INFO] [stderr]     Checking num-rational v0.4.2
[INFO] [stderr]     Checking rand v0.9.0
[INFO] [stderr]     Checking num v0.4.3
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]     Checking rand_distr v0.5.1
[INFO] [stderr]    Compiling zerocopy-derive v0.7.35
[INFO] [stderr]    Compiling serde_derive v1.0.217
[INFO] [stderr]     Checking zerocopy v0.7.35
[INFO] [stderr]     Checking backtrace v0.3.74
[INFO] [stderr]     Checking ppv-lite86 v0.2.20
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking plotlib v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking csv v1.3.1
[INFO] [stderr]     Checking smlr v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `prelude::*`
[INFO] [stdout]  --> src/network.rs:8:36
[INFO] [stdout]   |
[INFO] [stdout] 8 | use rand::{rngs, Rng, SeedableRng, prelude::*};
[INFO] [stdout]   |                                    ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `array`
[INFO] [stdout]  --> src/network.rs:9:15
[INFO] [stdout]   |
[INFO] [stdout] 9 | use ndarray::{array, s, Array1, Array2, Array3, Axis, ArrayView};
[INFO] [stdout]   |               ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Normal`
[INFO] [stdout]   --> src/network.rs:10:18
[INFO] [stdout]    |
[INFO] [stdout] 10 | use rand_distr::{Normal, Distribution};
[INFO] [stdout]    |                  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `array`
[INFO] [stdout]  --> src/network.rs:9:15
[INFO] [stdout]   |
[INFO] [stdout] 9 | use ndarray::{array, s, Array1, Array2, Array3, Axis, ArrayView};
[INFO] [stdout]   |               ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]   --> src/lib.rs:82:30
[INFO] [stdout]    |
[INFO] [stdout] 82 |         let dmse = |x : f64| (o(x) - f(&x));
[INFO] [stdout]    |                              ^            ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 82 -         let dmse = |x : f64| (o(x) - f(&x));
[INFO] [stdout] 82 +         let dmse = |x : f64| o(x) - f(&x) ;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Distribution`
[INFO] [stdout]   --> src/network.rs:10:26
[INFO] [stdout]    |
[INFO] [stdout] 10 | use rand_distr::{Normal, Distribution};
[INFO] [stdout]    |                          ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `right_layer_derivatives`
[INFO] [stdout]    --> src/network.rs:235:62
[INFO] [stdout]     |
[INFO] [stdout] 235 | ...y2<f64>, right_layer_derivatives: &Array2<f64>, learning_rate: f64, batch_size: f64) -> Array2<f64> {
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_right_layer_derivatives`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `learning_rate`
[INFO] [stdout]    --> src/network.rs:235:101
[INFO] [stdout]     |
[INFO] [stdout] 235 | ...ves: &Array2<f64>, learning_rate: f64, batch_size: f64) -> Array2<f64> {
[INFO] [stdout]     |                       ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_learning_rate`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `batch_size`
[INFO] [stdout]    --> src/network.rs:235:121
[INFO] [stdout]     |
[INFO] [stdout] 235 | ..., learning_rate: f64, batch_size: f64) -> Array2<f64> {
[INFO] [stdout]     |                          ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_batch_size`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `fft_conv` is never used
[INFO] [stdout]    --> src/network.rs:276:4
[INFO] [stdout]     |
[INFO] [stdout] 276 | fn fft_conv(input: &Array2<f64>, filter: &Array2<f64>) -> Array2<f64> {
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `ifft` is never used
[INFO] [stdout]    --> src/network.rs:286:4
[INFO] [stdout]     |
[INFO] [stdout] 286 | fn ifft(f: &Array2<Complex<f64>>) -> Array2<Complex<f64>>  {
[INFO] [stdout]     |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `fft` is never used
[INFO] [stdout]    --> src/network.rs:321:4
[INFO] [stdout]     |
[INFO] [stdout] 321 | fn fft(f: &Array2<Complex<f64>>) -> Array2<Complex<f64>> {
[INFO] [stdout]     |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sigmoid_numerically_stable` is never used
[INFO] [stdout]   --> src/network/activation_functions.rs:37:4
[INFO] [stdout]    |
[INFO] [stdout] 37 | fn sigmoid_numerically_stable(x: f64) -> f64 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sigmoid_naive_taylor` is never used
[INFO] [stdout]   --> src/network/activation_functions.rs:47:4
[INFO] [stdout]    |
[INFO] [stdout] 47 | fn sigmoid_naive_taylor(x: f64) -> f64 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Distribution`
[INFO] [stdout]   --> src/network.rs:10:26
[INFO] [stdout]    |
[INFO] [stdout] 10 | use rand_distr::{Normal, Distribution};
[INFO] [stdout]    |                          ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Layer`
[INFO] [stdout]   --> src/lib.rs:43:39
[INFO] [stdout]    |
[INFO] [stdout] 43 |         use network::{Network, Dense, Layer, activation_functions::ActivationFunction, loss_functions::LossFunction};
[INFO] [stdout]    |                                       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `right_layer_derivatives`
[INFO] [stdout]    --> src/network.rs:235:62
[INFO] [stdout]     |
[INFO] [stdout] 235 | ...y2<f64>, right_layer_derivatives: &Array2<f64>, learning_rate: f64, batch_size: f64) -> Array2<f64> {
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_right_layer_derivatives`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `learning_rate`
[INFO] [stdout]    --> src/network.rs:235:101
[INFO] [stdout]     |
[INFO] [stdout] 235 | ...ves: &Array2<f64>, learning_rate: f64, batch_size: f64) -> Array2<f64> {
[INFO] [stdout]     |                       ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_learning_rate`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `batch_size`
[INFO] [stdout]    --> src/network.rs:235:121
[INFO] [stdout]     |
[INFO] [stdout] 235 | ..., learning_rate: f64, batch_size: f64) -> Array2<f64> {
[INFO] [stdout]     |                          ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_batch_size`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/network.rs:338:9
[INFO] [stdout]     |
[INFO] [stdout] 338 |     let mut rng = thread_rng();
[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: unused variable: `normal`
[INFO] [stdout]    --> src/network.rs:337:9
[INFO] [stdout]     |
[INFO] [stdout] 337 |     let normal = Normal::new(0.0, 1.0).unwrap();
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_normal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rng`
[INFO] [stdout]    --> src/network.rs:338:9
[INFO] [stdout]     |
[INFO] [stdout] 338 |     let mut rng = thread_rng();
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_rng`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `fft_conv` is never used
[INFO] [stdout]    --> src/network.rs:276:4
[INFO] [stdout]     |
[INFO] [stdout] 276 | fn fft_conv(input: &Array2<f64>, filter: &Array2<f64>) -> Array2<f64> {
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `ifft` is never used
[INFO] [stdout]    --> src/network.rs:286:4
[INFO] [stdout]     |
[INFO] [stdout] 286 | fn ifft(f: &Array2<Complex<f64>>) -> Array2<Complex<f64>>  {
[INFO] [stdout]     |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `fft` is never used
[INFO] [stdout]    --> src/network.rs:321:4
[INFO] [stdout]     |
[INFO] [stdout] 321 | fn fft(f: &Array2<Complex<f64>>) -> Array2<Complex<f64>> {
[INFO] [stdout]     |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3m 15s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: svg v0.7.2
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 3`
[INFO] running `Command { std: "docker" "inspect" "6a8d2539c6da595ea9eb1407d9c8b818a85a583faf49b54674365586572cbf6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a8d2539c6da595ea9eb1407d9c8b818a85a583faf49b54674365586572cbf6a", kill_on_drop: false }`
[INFO] [stdout] 6a8d2539c6da595ea9eb1407d9c8b818a85a583faf49b54674365586572cbf6a
