[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 }`
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[INFO] [stdout] 547026c5eda655ee4203933a1fd5c5a66d86250e
[INFO] building Aboussejra/neural-net-rs against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAboussejra%2Fneural-net-rs" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Aboussejra/neural-net-rs on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-3-tc1/source/Cargo.toml
[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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c603d29fed9ebee2fe35ded74b2775fe30675e5a33f33ef2f81a3b7c40de425d
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[INFO] running `Command { std: "docker" "inspect" "c603d29fed9ebee2fe35ded74b2775fe30675e5a33f33ef2f81a3b7c40de425d", kill_on_drop: false }`
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[INFO] [stdout] c603d29fed9ebee2fe35ded74b2775fe30675e5a33f33ef2f81a3b7c40de425d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d8d22daa27d35ecdd0a24987b6c1c41e8c09c53d24363ac658212beaa9080959
[INFO] running `Command { std: "docker" "start" "-a" "d8d22daa27d35ecdd0a24987b6c1c41e8c09c53d24363ac658212beaa9080959", kill_on_drop: false }`
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[INFO] [stderr]    Compiling libc v0.2.133
[INFO] [stderr]    Compiling crossbeam-utils v0.8.11
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[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling rayon-core v1.9.3
[INFO] [stderr]    Compiling ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling either v1.8.0
[INFO] [stderr]    Compiling rawpointer v0.2.1
[INFO] [stderr]    Compiling matrixmultiply v0.3.2
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.10
[INFO] [stderr]    Compiling rayon v1.5.3
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling crossbeam-channel v0.5.6
[INFO] [stderr]    Compiling getrandom v0.2.7
[INFO] [stderr]    Compiling num_cpus v1.13.1
[INFO] [stderr]    Compiling crossbeam-deque v0.8.2
[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 num-complex v0.4.2
[INFO] [stderr]    Compiling rand_distr v0.4.3
[INFO] [stderr]    Compiling ndarray v0.15.6
[INFO] [stderr]    Compiling ndarray-rand v0.14.0
[INFO] [stderr]    Compiling neural-net-rs v0.1.0 (/opt/rustwide/workdir)
[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 `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 4.93s
[INFO] running `Command { std: "docker" "inspect" "d8d22daa27d35ecdd0a24987b6c1c41e8c09c53d24363ac658212beaa9080959", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d8d22daa27d35ecdd0a24987b6c1c41e8c09c53d24363ac658212beaa9080959", kill_on_drop: false }`
[INFO] [stdout] d8d22daa27d35ecdd0a24987b6c1c41e8c09c53d24363ac658212beaa9080959
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 43703cef52a214dc21d04c900a604b38050203703917c71fe0b3ca4a55fdb078
[INFO] running `Command { std: "docker" "start" "-a" "43703cef52a214dc21d04c900a604b38050203703917c71fe0b3ca4a55fdb078", kill_on_drop: false }`
[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] [stderr]    Compiling neural-net-rs v0.1.0 (/opt/rustwide/workdir)
[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] [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 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] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.34s
[INFO] running `Command { std: "docker" "inspect" "43703cef52a214dc21d04c900a604b38050203703917c71fe0b3ca4a55fdb078", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "43703cef52a214dc21d04c900a604b38050203703917c71fe0b3ca4a55fdb078", kill_on_drop: false }`
[INFO] [stdout] 43703cef52a214dc21d04c900a604b38050203703917c71fe0b3ca4a55fdb078