[INFO] crate pyrus-nn 0.2.1 is already in cache
[INFO] extracting crate pyrus-nn 0.2.1 into work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/reg/pyrus-nn/0.2.1
[INFO] extracting crate pyrus-nn 0.2.1 into work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/reg/pyrus-nn/0.2.1
[INFO] validating manifest of pyrus-nn-0.2.1 on toolchain master#c43d03a19f326f4a323569328cc501e86eb6d22e
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of pyrus-nn-0.2.1 on toolchain try#75eff020d0923c035c2fe220db4a0465cd847048
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+75eff020d0923c035c2fe220db4a0465cd847048-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing pyrus-nn-0.2.1
[INFO] finished frobbing pyrus-nn-0.2.1
[INFO] frobbed toml for pyrus-nn-0.2.1 written to work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/reg/pyrus-nn/0.2.1/Cargo.toml
[INFO] started frobbing pyrus-nn-0.2.1
[INFO] finished frobbing pyrus-nn-0.2.1
[INFO] frobbed toml for pyrus-nn-0.2.1 written to work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/reg/pyrus-nn/0.2.1/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+75eff020d0923c035c2fe220db4a0465cd847048-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+75eff020d0923c035c2fe220db4a0465cd847048-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking pyrus-nn-0.2.1 against master#c43d03a19f326f4a323569328cc501e86eb6d22e for pr-63565
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63565/worker-7/master#c43d03a19f326f4a323569328cc501e86eb6d22e:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/reg/pyrus-nn/0.2.1:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 60a441a55e6099f6681fb31f76a4dfedf1e51c4e3bdd3cbbd0ec08200a398ed2
[INFO] running `"docker" "start" "-a" "60a441a55e6099f6681fb31f76a4dfedf1e51c4e3bdd3cbbd0ec08200a398ed2"`
[INFO] [stderr]    Compiling ndarray v0.12.1
[INFO] [stderr]     Checking spin v0.4.10
[INFO] [stderr]    Compiling mashup-impl v0.1.9
[INFO] [stderr]     Checking float-cmp v0.4.0
[INFO] [stderr]    Compiling pyo3 v0.5.4
[INFO] [stderr]    Compiling pyo3-derive-backend v0.5.4
[INFO] [stderr]    Compiling typetag-impl v0.1.4
[INFO] [stderr]     Checking serde_yaml v0.8.9
[INFO] [stderr]     Checking mashup v0.1.9
[INFO] [stderr]     Checking typetag v0.1.4
[INFO] [stderr]    Compiling pyo3cls v0.5.4
[INFO] [stderr]     Checking ndarray-rand v0.9.0
[INFO] [stderr]     Checking ndarray-parallel v0.9.0
[INFO] [stderr]     Checking pyrus-nn v0.2.1 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `float_cmp::ApproxEq`
[INFO] [stderr]  --> tests/test_costs.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use float_cmp::ApproxEq;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `assert_ne`
[INFO] [stderr]  --> tests/test_costs.rs:3:36
[INFO] [stderr]   |
[INFO] [stderr] 3 | use pretty_assertions::{assert_eq, assert_ne};
[INFO] [stderr]   |                                    ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `float_cmp::ApproxEq`
[INFO] [stderr]  --> tests/test_activations.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use float_cmp::ApproxEq;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `assert_ne`
[INFO] [stderr]  --> tests/test_activations.rs:3:36
[INFO] [stderr]   |
[INFO] [stderr] 3 | use pretty_assertions::{assert_eq, assert_ne};
[INFO] [stderr]   |                                    ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `dense`
[INFO] [stderr]  --> tests/test_layers.rs:5:9
[INFO] [stderr]   |
[INFO] [stderr] 5 |     let dense = layers::Dense::default();
[INFO] [stderr]   |         ^^^^^ help: consider prefixing with an underscore: `_dense`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `assert_eq`, `assert_ne`
[INFO] [stderr]  --> tests/test_networks.rs:2:25
[INFO] [stderr]   |
[INFO] [stderr] 2 | use pretty_assertions::{assert_eq, assert_ne};
[INFO] [stderr]   |                         ^^^^^^^^^  ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `pyrus_nn::costs`
[INFO] [stderr]  --> tests/test_networks.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use pyrus_nn::costs;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `test_sequential_network_regression`
[INFO] [stderr]   --> tests/test_networks.rs:49:1
[INFO] [stderr]    |
[INFO] [stderr] 49 | fn test_sequential_network_regression() {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `X` should have a snake case name
[INFO] [stderr]   --> tests/test_networks.rs:65:9
[INFO] [stderr]    |
[INFO] [stderr] 65 |     let X = arr2(&[
[INFO] [stderr]    |         ^ help: convert the identifier to snake case: `x`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 32.25s
[INFO] running `"docker" "inspect" "60a441a55e6099f6681fb31f76a4dfedf1e51c4e3bdd3cbbd0ec08200a398ed2"`
[INFO] running `"docker" "rm" "-f" "60a441a55e6099f6681fb31f76a4dfedf1e51c4e3bdd3cbbd0ec08200a398ed2"`
[INFO] [stdout] 60a441a55e6099f6681fb31f76a4dfedf1e51c4e3bdd3cbbd0ec08200a398ed2