[INFO] fetching crate sklears-gaussian-process 0.1.0-alpha.1...
[INFO] checking sklears-gaussian-process-0.1.0-alpha.1 against master#e22dab387f6b4f6a87dfc54ac2f6013dddb41e68 for pr-149195
[INFO] extracting crate sklears-gaussian-process 0.1.0-alpha.1 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate sklears-gaussian-process 0.1.0-alpha.1
[INFO] finished tweaking crates.io crate sklears-gaussian-process 0.1.0-alpha.1
[INFO] tweaked toml for crates.io crate sklears-gaussian-process 0.1.0-alpha.1 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate sklears-gaussian-process 0.1.0-alpha.1 on toolchain e22dab387f6b4f6a87dfc54ac2f6013dddb41e68
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e22dab387f6b4f6a87dfc54ac2f6013dddb41e68" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate sklears-gaussian-process 0.1.0-alpha.1 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" "+e22dab387f6b4f6a87dfc54ac2f6013dddb41e68" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cauchy v0.4.0
[INFO] [stderr]   Downloaded katexit v0.1.5
[INFO] [stderr]   Downloaded lax v0.17.0
[INFO] [stderr]   Downloaded ndarray-rand v0.15.0
[INFO] [stderr]   Downloaded iter-read v1.1.0
[INFO] [stderr]   Downloaded special v0.11.4
[INFO] [stderr]   Downloaded friedrich v0.5.0
[INFO] [stderr]   Downloaded lambert_w v1.2.28
[INFO] [stderr]   Downloaded argmin-math v0.5.1
[INFO] [stderr]   Downloaded ndarray-linalg v0.17.0
[INFO] [stderr]   Downloaded sprs v0.11.3
[INFO] [stderr]   Downloaded argmin v0.11.0
[INFO] [stderr]   Downloaded sklears-utils v0.1.0-alpha.1
[INFO] [stderr]   Downloaded serde-pickle v1.2.0
[INFO] [stderr]   Downloaded scirs2-sparse v0.1.0-rc.1
[INFO] [stderr]   Downloaded scirs2-optimize v0.1.0-rc.1
[INFO] [stderr]   Downloaded sklears-core v0.1.0-alpha.1
[INFO] [stderr]   Downloaded scirs2-special v0.1.0-rc.1
[INFO] [stderr]   Downloaded scirs2-linalg v0.1.0-rc.1
[INFO] [stderr]   Downloaded numrs2 v0.1.0-beta.3
[INFO] [stderr]   Downloaded scirs2-core v0.1.0-rc.1
[INFO] [stderr]   Downloaded scirs2-stats v0.1.0-rc.1
[INFO] [stderr]   Downloaded lapack-sys v0.14.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+e22dab387f6b4f6a87dfc54ac2f6013dddb41e68" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2ddf7a7d187900db4d3f049437dbc8250b1391d208d7fd2129580a44a1acdf93
[INFO] running `Command { std: "docker" "start" "-a" "2ddf7a7d187900db4d3f049437dbc8250b1391d208d7fd2129580a44a1acdf93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2ddf7a7d187900db4d3f049437dbc8250b1391d208d7fd2129580a44a1acdf93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ddf7a7d187900db4d3f049437dbc8250b1391d208d7fd2129580a44a1acdf93", kill_on_drop: false }`
[INFO] [stdout] 2ddf7a7d187900db4d3f049437dbc8250b1391d208d7fd2129580a44a1acdf93
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+e22dab387f6b4f6a87dfc54ac2f6013dddb41e68" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ae0aeb40ec6236d0d4e4d7386b207aa46daf8425526873f12ca7d2d7c3f975a5
[INFO] running `Command { std: "docker" "start" "-a" "ae0aeb40ec6236d0d4e4d7386b207aa46daf8425526873f12ca7d2d7c3f975a5", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.176
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling quote v1.0.41
[INFO] [stderr]     Checking bytemuck v1.23.2
[INFO] [stderr]     Checking num-rational v0.4.2
[INFO] [stderr]     Checking rayon v1.11.0
[INFO] [stderr]     Checking regex-automata v0.4.11
[INFO] [stderr]    Compiling find-msvc-tools v0.1.2
[INFO] [stderr]    Compiling scirs2-core v0.1.0-rc.1
[INFO] [stderr]     Checking safe_arch v0.7.4
[INFO] [stderr]    Compiling lambert_w v1.2.28
[INFO] [stderr]     Checking crc32fast v1.5.0
[INFO] [stderr]     Checking zlib-rs v0.5.2
[INFO] [stderr]     Checking cipher v0.4.4
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]     Checking wide v0.7.33
[INFO] [stderr]     Checking hmac v0.12.1
[INFO] [stderr]     Checking libbz2-rs-sys v0.2.2
[INFO] [stderr]     Checking libz-rs-sys v0.5.2
[INFO] [stderr]    Compiling jobserver v0.1.34
[INFO] [stderr]     Checking simd-adler32 v0.3.7
[INFO] [stderr]     Checking getrandom v0.2.16
[INFO] [stderr]     Checking getrandom v0.3.3
[INFO] [stderr]     Checking lapack-sys v0.14.0
[INFO] [stderr]     Checking rand_core v0.9.3
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.9.0
[INFO] [stderr]    Compiling cc v1.2.39
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking num_cpus v1.17.0
[INFO] [stderr]     Checking unicode-ident v1.0.19
[INFO] [stderr]     Checking rand v0.9.2
[INFO] [stderr]     Checking zopfli v0.8.2
[INFO] [stderr]     Checking time v0.3.44
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking regex v1.11.3
[INFO] [stderr]     Checking bzip2 v0.6.0
[INFO] [stderr]     Checking memmap2 v0.9.8
[INFO] [stderr]     Checking rand_distr v0.5.1
[INFO] [stderr]     Checking rand_distr v0.4.3
[INFO] [stderr]     Checking env_logger v0.8.4
[INFO] [stderr]     Checking flate2 v1.1.2
[INFO] [stderr]     Checking pbkdf2 v0.12.2
[INFO] [stderr]     Checking lzma-rust2 v0.13.0
[INFO] [stderr]     Checking quickcheck v1.0.3
[INFO] [stderr]     Checking aes v0.8.4
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking sha1 v0.10.6
[INFO] [stderr]     Checking csv-core v0.1.12
[INFO] [stderr]     Checking num-bigint v0.4.6
[INFO] [stderr]     Checking ppmd-rust v1.2.1
[INFO] [stderr]     Checking iter-read v1.1.0
[INFO] [stderr]     Checking deflate64 v0.1.9
[INFO] [stderr]    Compiling rustc_version_runtime v0.3.0
[INFO] [stderr]     Checking rustc_version v0.4.1
[INFO] [stderr]    Compiling zstd-sys v2.0.16+zstd.1.5.7
[INFO] [stderr]     Checking rand_xoshiro v0.7.0
[INFO] [stderr]     Checking tempfile v3.23.0
[INFO] [stderr]     Checking wait-timeout v0.2.1
[INFO] [stderr]     Checking rand_xorshift v0.4.0
[INFO] [stderr]     Checking rusty-fork v0.3.0
[INFO] [stderr]     Checking proptest v1.8.0
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling thiserror-impl v2.0.17
[INFO] [stderr]    Compiling katexit v0.1.5
[INFO] [stderr]    Compiling zeroize_derive v1.4.2
[INFO] [stderr]    Compiling nalgebra-macros v0.1.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]     Checking zeroize v1.8.2
[INFO] [stderr]     Checking thiserror v2.0.17
[INFO] [stderr]    Compiling zstd-safe v7.2.4
[INFO] [stderr]     Checking thiserror v1.0.69
[INFO] [stderr]     Checking zstd v0.13.3
[INFO] [stderr]     Checking zip v5.1.1
[INFO] [stderr]     Checking serde v1.0.228
[INFO] [stderr]     Checking num-complex v0.4.6
[INFO] [stderr]     Checking uuid v1.18.1
[INFO] [stderr]     Checking chrono v0.4.42
[INFO] [stderr]     Checking bincode v2.0.1
[INFO] [stderr]     Checking half v2.6.0
[INFO] [stderr]     Checking serde-pickle v1.2.0
[INFO] [stderr]     Checking csv v1.3.1
[INFO] [stderr]     Checking ndarray v0.16.1
[INFO] [stderr]     Checking cauchy v0.4.0
[INFO] [stderr]     Checking simba v0.9.1
[INFO] [stderr]     Checking simba v0.7.3
[INFO] [stderr]     Checking argmin-math v0.5.1
[INFO] [stderr]     Checking lax v0.17.0
[INFO] [stderr]     Checking special v0.11.4
[INFO] [stderr]     Checking argmin v0.11.0
[INFO] [stderr]     Checking ndarray-rand v0.15.0
[INFO] [stderr]     Checking ndarray-linalg v0.17.0
[INFO] [stderr]     Checking sprs v0.11.3
[INFO] [stderr]     Checking nalgebra v0.33.2
[INFO] [stderr]     Checking nalgebra v0.30.1
[INFO] [stderr]     Checking statrs v0.18.0
[INFO] [stderr]     Checking friedrich v0.5.0
[INFO] [stderr]     Checking scirs2-linalg v0.1.0-rc.1
[INFO] [stderr]     Checking scirs2-sparse v0.1.0-rc.1
[INFO] [stderr]     Checking scirs2-special v0.1.0-rc.1
[INFO] [stderr]     Checking scirs2-stats v0.1.0-rc.1
[INFO] [stderr]     Checking scirs2-optimize v0.1.0-rc.1
[INFO] [stderr]     Checking numrs2 v0.1.0-beta.3
[INFO] [stderr]     Checking sklears-core v0.1.0-alpha.1
[INFO] [stderr]     Checking sklears-utils v0.1.0-alpha.1
[INFO] [stderr]     Checking sklears-gaussian-process v0.1.0-alpha.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/sparse_gpr.rs:287:17
[INFO] [stdout]     |
[INFO] [stdout] 287 |                 /// X_train
[INFO] [stdout]     |                 ^^^^^^^^^^^
[INFO] [stdout] 288 |                 X_train,
[INFO] [stdout]     |                 ------- rustdoc does not generate documentation for expression fields
[INFO] [stdout]     |
[INFO] [stdout]     = help: use `//` for a plain comment
[INFO] [stdout]     = note: `#[warn(unused_doc_comments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/sparse_gpr.rs:293:17
[INFO] [stdout]     |
[INFO] [stdout] 293 |                 /// Knm
[INFO] [stdout]     |                 ^^^^^^^
[INFO] [stdout] 294 |                 Knm,
[INFO] [stdout]     |                 --- rustdoc does not generate documentation for expression fields
[INFO] [stdout]     |
[INFO] [stdout]     = help: use `//` for a plain comment
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/sparse_gpr.rs:287:17
[INFO] [stdout]     |
[INFO] [stdout] 287 |                 /// X_train
[INFO] [stdout]     |                 ^^^^^^^^^^^
[INFO] [stdout] 288 |                 X_train,
[INFO] [stdout]     |                 ------- rustdoc does not generate documentation for expression fields
[INFO] [stdout]     |
[INFO] [stdout]     = help: use `//` for a plain comment
[INFO] [stdout]     = note: `#[warn(unused_doc_comments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/sparse_gpr.rs:293:17
[INFO] [stdout]     |
[INFO] [stdout] 293 |                 /// Knm
[INFO] [stdout]     |                 ^^^^^^^
[INFO] [stdout] 294 |                 Knm,
[INFO] [stdout]     |                 --- rustdoc does not generate documentation for expression fields
[INFO] [stdout]     |
[INFO] [stdout]     = help: use `//` for a plain comment
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Rng`
[INFO] [stdout]    --> src/lib.rs:149:35
[INFO] [stdout]     |
[INFO] [stdout] 149 | use scirs2_core::random::{Random, Rng}; // SciRS2 Policy - Use scirs2-core for random operations
[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: `scirs2_core::random::Rng`
[INFO] [stdout]   --> src/regression.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | use scirs2_core::random::Rng;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Rng`
[INFO] [stdout]   --> src/intrinsic_coregionalization.rs:19:35
[INFO] [stdout]    |
[INFO] [stdout] 19 | use scirs2_core::random::{Random, Rng}; // SciRS2 Policy - Use scirs2-core for random operations
[INFO] [stdout]    |                                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `X`
[INFO] [stdout]    --> src/automatic_kernel.rs:193:36
[INFO] [stdout]     |
[INFO] [stdout] 193 |     fn estimate_noise_level(&self, X: &ArrayView2<f64>, y: &ArrayView1<f64>) -> SklResult<f64> {
[INFO] [stdout]     |                                    ^ help: if this is intentional, prefix it with an underscore: `_X`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `X`
[INFO] [stdout]    --> src/automatic_kernel.rs:268:9
[INFO] [stdout]     |
[INFO] [stdout] 268 |         X: &ArrayView2<f64>,
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_X`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `X_test`
[INFO] [stdout]    --> src/automatic_kernel.rs:501:17
[INFO] [stdout]     |
[INFO] [stdout] 501 |             let X_test = X.select(Axis(0), &test_indices);
[INFO] [stdout]     |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_X_test`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y_test`
[INFO] [stdout]    --> src/automatic_kernel.rs:502:17
[INFO] [stdout]     |
[INFO] [stdout] 502 |             let y_test = y.select(Axis(0), &test_indices);
[INFO] [stdout]     |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_y_test`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `iter`
[INFO] [stdout]    --> src/classification.rs:342:9
[INFO] [stdout]     |
[INFO] [stdout] 342 |     for iter in 0..max_iter {
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_iter`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `W_sr`
[INFO] [stdout]    --> src/classification.rs:346:13
[INFO] [stdout]     |
[INFO] [stdout] 346 |         let W_sr = W.mapv(|w| w.sqrt());
[INFO] [stdout]     |             ^^^^ help: if this is intentional, prefix it with an underscore: `_W_sr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `W_sr`
[INFO] [stdout]    --> src/classification.rs:402:5
[INFO] [stdout]     |
[INFO] [stdout] 402 |     W_sr: &Array1<f64>,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_W_sr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `L`
[INFO] [stdout]    --> src/classification.rs:403:5
[INFO] [stdout]     |
[INFO] [stdout] 403 |     L: &Array2<f64>,
[INFO] [stdout]     |     ^ help: if this is intentional, prefix it with an underscore: `_L`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]     --> src/classification.rs:1274:5
[INFO] [stdout]      |
[INFO] [stdout] 1274 |     y: &Array1<f64>,
[INFO] [stdout]      |     ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `iteration`
[INFO] [stdout]    --> src/kernel_structure_learning.rs:226:13
[INFO] [stdout]     |
[INFO] [stdout] 226 |         for iteration in 0..self.max_iterations {
[INFO] [stdout]     |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_iteration`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `iteration`
[INFO] [stdout]    --> src/kernel_structure_learning.rs:322:13
[INFO] [stdout]     |
[INFO] [stdout] 322 |         for iteration in 0..self.max_iterations {
[INFO] [stdout]     |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_iteration`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `generation`
[INFO] [stdout]    --> src/kernel_structure_learning.rs:423:13
[INFO] [stdout]     |
[INFO] [stdout] 423 |         for generation in 0..self.max_iterations {
[INFO] [stdout]     |             ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_generation`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `iteration`
[INFO] [stdout]    --> src/kernel_structure_learning.rs:497:13
[INFO] [stdout]     |
[INFO] [stdout] 497 |         for iteration in 0..self.max_iterations {
[INFO] [stdout]     |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_iteration`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `end_idx`
[INFO] [stdout]    --> src/multi_task.rs:474:37
[INFO] [stdout]     |
[INFO] [stdout] 474 |             if let Some((start_idx, end_idx)) = self._state.task_indices.get(task_name) {
[INFO] [stdout]     |                                     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_end_idx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]    --> src/regression.rs:749:13
[INFO] [stdout]     |
[INFO] [stdout] 749 |         let n = X.nrows() as f64;
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]    --> src/regression.rs:910:9
[INFO] [stdout]     |
[INFO] [stdout] 910 |         y: &ArrayView1<f64>,
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `removal_threshold`
[INFO] [stdout]    --> src/regression.rs:996:9
[INFO] [stdout]     |
[INFO] [stdout] 996 |         removal_threshold: f64,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_removal_threshold`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]     --> src/regression.rs:1058:9
[INFO] [stdout]      |
[INFO] [stdout] 1058 |         y: &ArrayView1<f64>,
[INFO] [stdout]      |         ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `K_inv`
[INFO] [stdout]     --> src/regression.rs:1354:9
[INFO] [stdout]      |
[INFO] [stdout] 1354 |         K_inv: &[Array2<f64>],
[INFO] [stdout]      |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_K_inv`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `kernel_eigenvalues`
[INFO] [stdout]    --> src/structured_kernel_interpolation.rs:487:9
[INFO] [stdout]     |
[INFO] [stdout] 487 |         kernel_eigenvalues: &Option<Array1<f64>>,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_kernel_eigenvalues`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Rng`
[INFO] [stdout]    --> src/lib.rs:149:35
[INFO] [stdout]     |
[INFO] [stdout] 149 | use scirs2_core::random::{Random, Rng}; // SciRS2 Policy - Use scirs2-core for random operations
[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: `scirs2_core::random::Rng`
[INFO] [stdout]   --> src/regression.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | use scirs2_core::random::Rng;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Rng`
[INFO] [stdout]   --> src/intrinsic_coregionalization.rs:19:35
[INFO] [stdout]    |
[INFO] [stdout] 19 | use scirs2_core::random::{Random, Rng}; // SciRS2 Policy - Use scirs2-core for random operations
[INFO] [stdout]    |                                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `X`
[INFO] [stdout]    --> src/automatic_kernel.rs:193:36
[INFO] [stdout]     |
[INFO] [stdout] 193 |     fn estimate_noise_level(&self, X: &ArrayView2<f64>, y: &ArrayView1<f64>) -> SklResult<f64> {
[INFO] [stdout]     |                                    ^ help: if this is intentional, prefix it with an underscore: `_X`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `X`
[INFO] [stdout]    --> src/automatic_kernel.rs:268:9
[INFO] [stdout]     |
[INFO] [stdout] 268 |         X: &ArrayView2<f64>,
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_X`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `K_star`
[INFO] [stdout]    --> src/lib.rs:550:17
[INFO] [stdout]     |
[INFO] [stdout] 550 |             let K_star = self._state.kernels[r]
[INFO] [stdout]     |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_K_star`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `X_test`
[INFO] [stdout]    --> src/automatic_kernel.rs:501:17
[INFO] [stdout]     |
[INFO] [stdout] 501 |             let X_test = X.select(Axis(0), &test_indices);
[INFO] [stdout]     |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_X_test`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y_test`
[INFO] [stdout]    --> src/automatic_kernel.rs:502:17
[INFO] [stdout]     |
[INFO] [stdout] 502 |             let y_test = y.select(Axis(0), &test_indices);
[INFO] [stdout]     |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_y_test`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `iter`
[INFO] [stdout]    --> src/classification.rs:342:9
[INFO] [stdout]     |
[INFO] [stdout] 342 |     for iter in 0..max_iter {
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_iter`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `W_sr`
[INFO] [stdout]    --> src/classification.rs:346:13
[INFO] [stdout]     |
[INFO] [stdout] 346 |         let W_sr = W.mapv(|w| w.sqrt());
[INFO] [stdout]     |             ^^^^ help: if this is intentional, prefix it with an underscore: `_W_sr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `W_sr`
[INFO] [stdout]    --> src/classification.rs:402:5
[INFO] [stdout]     |
[INFO] [stdout] 402 |     W_sr: &Array1<f64>,
[INFO] [stdout]     |     ^^^^ help: if this is intentional, prefix it with an underscore: `_W_sr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `L`
[INFO] [stdout]    --> src/classification.rs:403:5
[INFO] [stdout]     |
[INFO] [stdout] 403 |     L: &Array2<f64>,
[INFO] [stdout]     |     ^ help: if this is intentional, prefix it with an underscore: `_L`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]     --> src/classification.rs:1274:5
[INFO] [stdout]      |
[INFO] [stdout] 1274 |     y: &Array1<f64>,
[INFO] [stdout]      |     ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `iteration`
[INFO] [stdout]    --> src/kernel_structure_learning.rs:226:13
[INFO] [stdout]     |
[INFO] [stdout] 226 |         for iteration in 0..self.max_iterations {
[INFO] [stdout]     |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_iteration`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `iteration`
[INFO] [stdout]    --> src/kernel_structure_learning.rs:322:13
[INFO] [stdout]     |
[INFO] [stdout] 322 |         for iteration in 0..self.max_iterations {
[INFO] [stdout]     |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_iteration`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `generation`
[INFO] [stdout]    --> src/kernel_structure_learning.rs:423:13
[INFO] [stdout]     |
[INFO] [stdout] 423 |         for generation in 0..self.max_iterations {
[INFO] [stdout]     |             ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_generation`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `iteration`
[INFO] [stdout]    --> src/kernel_structure_learning.rs:497:13
[INFO] [stdout]     |
[INFO] [stdout] 497 |         for iteration in 0..self.max_iterations {
[INFO] [stdout]     |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_iteration`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `end_idx`
[INFO] [stdout]    --> src/multi_task.rs:474:37
[INFO] [stdout]     |
[INFO] [stdout] 474 |             if let Some((start_idx, end_idx)) = self._state.task_indices.get(task_name) {
[INFO] [stdout]     |                                     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_end_idx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]    --> src/regression.rs:749:13
[INFO] [stdout]     |
[INFO] [stdout] 749 |         let n = X.nrows() as f64;
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]    --> src/regression.rs:910:9
[INFO] [stdout]     |
[INFO] [stdout] 910 |         y: &ArrayView1<f64>,
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `removal_threshold`
[INFO] [stdout]    --> src/regression.rs:996:9
[INFO] [stdout]     |
[INFO] [stdout] 996 |         removal_threshold: f64,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_removal_threshold`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]     --> src/regression.rs:1058:9
[INFO] [stdout]      |
[INFO] [stdout] 1058 |         y: &ArrayView1<f64>,
[INFO] [stdout]      |         ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `K_inv`
[INFO] [stdout]     --> src/regression.rs:1354:9
[INFO] [stdout]      |
[INFO] [stdout] 1354 |         K_inv: &[Array2<f64>],
[INFO] [stdout]      |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_K_inv`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `kernel_eigenvalues`
[INFO] [stdout]    --> src/structured_kernel_interpolation.rs:487:9
[INFO] [stdout]     |
[INFO] [stdout] 487 |         kernel_eigenvalues: &Option<Array1<f64>>,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_kernel_eigenvalues`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `K_star`
[INFO] [stdout]    --> src/lib.rs:550:17
[INFO] [stdout]     |
[INFO] [stdout] 550 |             let K_star = self._state.kernels[r]
[INFO] [stdout]     |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_K_star`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2m 46s
[INFO] running `Command { std: "docker" "inspect" "ae0aeb40ec6236d0d4e4d7386b207aa46daf8425526873f12ca7d2d7c3f975a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae0aeb40ec6236d0d4e4d7386b207aa46daf8425526873f12ca7d2d7c3f975a5", kill_on_drop: false }`
[INFO] [stdout] ae0aeb40ec6236d0d4e4d7386b207aa46daf8425526873f12ca7d2d7c3f975a5
