[INFO] fetching crate DeepIron 0.1.4...
[INFO] checking DeepIron-0.1.4 against try#264a7c4a1c917c83d13895a31231f9d93c7b67e1 for pr-132289
[INFO] extracting crate DeepIron 0.1.4 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate DeepIron 0.1.4 on toolchain 264a7c4a1c917c83d13895a31231f9d93c7b67e1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+264a7c4a1c917c83d13895a31231f9d93c7b67e1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate DeepIron 0.1.4
[INFO] finished tweaking crates.io crate DeepIron 0.1.4
[INFO] tweaked toml for crates.io crate DeepIron 0.1.4 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+264a7c4a1c917c83d13895a31231f9d93c7b67e1" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 148 packages to latest compatible versions
[INFO] [stderr]       Adding polars v0.35.4 (available: v0.44.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+264a7c4a1c917c83d13895a31231f9d93c7b67e1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+264a7c4a1c917c83d13895a31231f9d93c7b67e1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8406d5c16c277247035e3a3fd977caaf1dc1fe46af98f7c5174e974e6199e399
[INFO] running `Command { std: "docker" "start" "-a" "8406d5c16c277247035e3a3fd977caaf1dc1fe46af98f7c5174e974e6199e399", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8406d5c16c277247035e3a3fd977caaf1dc1fe46af98f7c5174e974e6199e399", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8406d5c16c277247035e3a3fd977caaf1dc1fe46af98f7c5174e974e6199e399", kill_on_drop: false }`
[INFO] [stdout] 8406d5c16c277247035e3a3fd977caaf1dc1fe46af98f7c5174e974e6199e399
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+264a7c4a1c917c83d13895a31231f9d93c7b67e1" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b37cad43f7fd5c1b3c722d85b0ed4db9e5ecb42161806af8738cd84672fde616
[INFO] running `Command { std: "docker" "start" "-a" "b37cad43f7fd5c1b3c722d85b0ed4db9e5ecb42161806af8738cd84672fde616", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.89
[INFO] [stderr]    Compiling unicode-ident v1.0.13
[INFO] [stderr]    Compiling version_check v0.9.5
[INFO] [stderr]    Compiling crossbeam-utils v0.8.20
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]    Compiling target-features v0.1.6
[INFO] [stderr]    Compiling rayon-core v1.12.1
[INFO] [stderr]     Checking memchr v2.7.4
[INFO] [stderr]     Checking regex-syntax v0.8.5
[INFO] [stderr]    Compiling thiserror v1.0.65
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling lock_api v0.4.12
[INFO] [stderr]    Compiling parking_lot_core v0.9.10
[INFO] [stderr]     Checking once_cell v1.20.2
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]     Checking either v1.13.0
[INFO] [stderr]     Checking simdutf8 v0.1.5
[INFO] [stderr]     Checking iana-time-zone v0.1.61
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]     Checking equivalent v1.0.1
[INFO] [stderr]     Checking smallvec v1.13.2
[INFO] [stderr]    Compiling rustversion v1.0.18
[INFO] [stderr]     Checking allocator-api2 v0.2.18
[INFO] [stderr]     Checking hashbrown v0.15.0
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking bitflags v2.6.0
[INFO] [stderr]     Checking atoi_simd v0.15.6
[INFO] [stderr]     Checking ryu v1.0.18
[INFO] [stderr]     Checking itoa v1.0.11
[INFO] [stderr]    Compiling ahash v0.8.11
[INFO] [stderr]    Compiling smartstring v1.0.1
[INFO] [stderr]    Compiling polars-utils v0.35.4
[INFO] [stderr]     Checking foreign_vec v0.1.0
[INFO] [stderr]     Checking streaming-iterator v0.1.9
[INFO] [stderr]     Checking dyn-clone v1.0.17
[INFO] [stderr]    Compiling heck v0.5.0
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]     Checking strength_reduce v0.2.4
[INFO] [stderr]     Checking fast-float v0.2.0
[INFO] [stderr]     Checking ethnum v1.5.0
[INFO] [stderr]    Compiling polars-core v0.35.4
[INFO] [stderr]     Checking parking_lot v0.12.3
[INFO] [stderr]     Checking crossbeam-epoch v0.9.18
[INFO] [stderr]     Checking unicode-width v0.1.14
[INFO] [stderr]     Checking strum v0.26.3
[INFO] [stderr]    Compiling polars-ops v0.35.4
[INFO] [stderr]     Checking crossterm v0.27.0
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]     Checking xxhash-rust v0.8.12
[INFO] [stderr]     Checking crossbeam-deque v0.8.5
[INFO] [stderr]     Checking indexmap v2.6.0
[INFO] [stderr]    Compiling polars v0.35.4
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking memmap2 v0.7.1
[INFO] [stderr]     Checking home v0.5.9
[INFO] [stderr]     Checking bytes v1.8.0
[INFO] [stderr]     Checking percent-encoding v2.3.1
[INFO] [stderr]    Compiling syn v2.0.85
[INFO] [stderr]     Checking chrono v0.4.38
[INFO] [stderr]     Checking argminmax v0.6.2
[INFO] [stderr]     Checking atoi v2.0.0
[INFO] [stderr]     Checking rayon v1.10.0
[INFO] [stderr]     Checking regex-automata v0.4.8
[INFO] [stderr]     Checking now v0.1.3
[INFO] [stderr]    Compiling zerocopy-derive v0.7.35
[INFO] [stderr]    Compiling thiserror-impl v1.0.65
[INFO] [stderr]    Compiling bytemuck_derive v1.8.0
[INFO] [stderr]    Compiling strum_macros v0.26.4
[INFO] [stderr]     Checking zerocopy v0.7.35
[INFO] [stderr]     Checking regex v1.11.1
[INFO] [stderr]     Checking bytemuck v1.19.0
[INFO] [stderr]     Checking polars-error v0.35.4
[INFO] [stderr]     Checking ppv-lite86 v0.2.20
[INFO] [stderr]     Checking comfy-table v7.1.1
[INFO] [stderr]     Checking hashbrown v0.14.5
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling multiversion-macros v0.7.4
[INFO] [stderr]     Checking multiversion v0.7.4
[INFO] [stderr]     Checking polars-arrow v0.35.4
[INFO] [stderr]     Checking polars-row v0.35.4
[INFO] [stderr]     Checking polars-time v0.35.4
[INFO] [stderr]     Checking polars-io v0.35.4
[INFO] [stderr]     Checking DeepIron v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `LossFunctionType` and `LossFunction`
[INFO] [stdout]   --> src/layers.rs:13:40
[INFO] [stdout]    |
[INFO] [stdout] 13 |     use crate::model::loss_functions::{LossFunction, LossFunctionType};
[INFO] [stdout]    |                                        ^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ActivationFunction`
[INFO] [stdout]  --> src/multilayer_perceptron.rs:4:42
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::model::activation_functions::{ActivationFunction, ActivationFunctionType};
[INFO] [stdout]   |                                          ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `KernelFunctionType` and `KernelFunction`
[INFO] [stdout]  --> src/multilayer_perceptron.rs:5:38
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::model::kernel_functions::{KernelFunction, KernelFunctionType};
[INFO] [stdout]   |                                      ^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ActivationFunctionType` and `ActivationFunction`
[INFO] [stdout]  --> src/k_means.rs:4:42
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::model::activation_functions::{ActivationFunction, ActivationFunctionType};
[INFO] [stdout]   |                                          ^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `LossFunctionType` and `LossFunction`
[INFO] [stdout]  --> src/k_means.rs:5:36
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::model::loss_functions::{LossFunction, LossFunctionType};
[INFO] [stdout]   |                                    ^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `LossFunctionType` and `LossFunction`
[INFO] [stdout]   --> src/layers.rs:13:40
[INFO] [stdout]    |
[INFO] [stdout] 13 |     use crate::model::loss_functions::{LossFunction, LossFunctionType};
[INFO] [stdout]    |                                        ^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ActivationFunction`
[INFO] [stdout]  --> src/multilayer_perceptron.rs:4:42
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::model::activation_functions::{ActivationFunction, ActivationFunctionType};
[INFO] [stdout]   |                                          ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `KernelFunctionType` and `KernelFunction`
[INFO] [stdout]  --> src/multilayer_perceptron.rs:5:38
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::model::kernel_functions::{KernelFunction, KernelFunctionType};
[INFO] [stdout]   |                                      ^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ActivationFunctionType` and `ActivationFunction`
[INFO] [stdout]  --> src/k_means.rs:4:42
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::model::activation_functions::{ActivationFunction, ActivationFunctionType};
[INFO] [stdout]   |                                          ^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `LossFunctionType` and `LossFunction`
[INFO] [stdout]  --> src/k_means.rs:5:36
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::model::loss_functions::{LossFunction, LossFunctionType};
[INFO] [stdout]   |                                    ^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `grad_input`
[INFO] [stdout]    --> src/layers.rs:176:17
[INFO] [stdout]     |
[INFO] [stdout] 176 |             let grad_input: Series = &inputs * &grad_outputs;
[INFO] [stdout]     |                 ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_grad_input`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `old_centroids` is never read
[INFO] [stdout]    --> src/k_means.rs:323:17
[INFO] [stdout]     |
[INFO] [stdout] 323 |         let mut old_centroids: DataFrame = DataFrame::new::<Series>(vec![]).unwrap();
[INFO] [stdout]     |                 ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `new_centroids` is never read
[INFO] [stdout]    --> src/k_means.rs:324:17
[INFO] [stdout]     |
[INFO] [stdout] 324 |         let mut new_centroids: DataFrame = DataFrame::new::<Series>(vec![]).unwrap();
[INFO] [stdout]     |                 ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate `DeepIron` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = help: convert the identifier to snake case: `deep_iron`
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `grad_input`
[INFO] [stdout]    --> src/layers.rs:176:17
[INFO] [stdout]     |
[INFO] [stdout] 176 |             let grad_input: Series = &inputs * &grad_outputs;
[INFO] [stdout]     |                 ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_grad_input`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `old_centroids` is never read
[INFO] [stdout]    --> src/k_means.rs:323:17
[INFO] [stdout]     |
[INFO] [stdout] 323 |         let mut old_centroids: DataFrame = DataFrame::new::<Series>(vec![]).unwrap();
[INFO] [stdout]     |                 ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `new_centroids` is never read
[INFO] [stdout]    --> src/k_means.rs:324:17
[INFO] [stdout]     |
[INFO] [stdout] 324 |         let mut new_centroids: DataFrame = DataFrame::new::<Series>(vec![]).unwrap();
[INFO] [stdout]     |                 ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.51s
[INFO] running `Command { std: "docker" "inspect" "b37cad43f7fd5c1b3c722d85b0ed4db9e5ecb42161806af8738cd84672fde616", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b37cad43f7fd5c1b3c722d85b0ed4db9e5ecb42161806af8738cd84672fde616", kill_on_drop: false }`
[INFO] [stdout] b37cad43f7fd5c1b3c722d85b0ed4db9e5ecb42161806af8738cd84672fde616
