[INFO] cloning repository https://github.com/winktool/optuna-rs [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/winktool/optuna-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwinktool%2Foptuna-rs", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwinktool%2Foptuna-rs'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 5c0c7727a668aa4de560b993e6836cfdc5ed72dc [INFO] testing winktool/optuna-rs/5c0c7727a668aa4de560b993e6836cfdc5ed72dc against beta-2026-04-21 for beta-1.96-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwinktool%2Foptuna-rs" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/winktool/optuna-rs [INFO] finished tweaking git repo https://github.com/winktool/optuna-rs [INFO] tweaked toml for git repo https://github.com/winktool/optuna-rs written to /workspace/builds/worker-1-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/winktool/optuna-rs on toolchain beta-2026-04-21 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/winktool/optuna-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" "+beta-2026-04-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 9c8d9cca1014b4e55019b901cdefdb0630becf4c78e272ca2d6a194f6a0d8a73 [INFO] running `Command { std: "docker" "start" "-a" "9c8d9cca1014b4e55019b901cdefdb0630becf4c78e272ca2d6a194f6a0d8a73", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "9c8d9cca1014b4e55019b901cdefdb0630becf4c78e272ca2d6a194f6a0d8a73", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9c8d9cca1014b4e55019b901cdefdb0630becf4c78e272ca2d6a194f6a0d8a73", kill_on_drop: false }` [INFO] [stdout] 9c8d9cca1014b4e55019b901cdefdb0630becf4c78e272ca2d6a194f6a0d8a73 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] ce9139720770918530fdbf84b9265422a52154da2c54b1ca1a3b801908828939 [INFO] running `Command { std: "docker" "start" "-a" "ce9139720770918530fdbf84b9265422a52154da2c54b1ca1a3b801908828939", kill_on_drop: false }` [INFO] [stderr] Compiling nix v0.31.2 [INFO] [stderr] Compiling num-traits v0.2.19 [INFO] [stderr] Compiling parking_lot_core v0.9.12 [INFO] [stderr] Compiling optuna-rs v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Compiling memchr v2.8.0 [INFO] [stderr] Compiling uuid v1.22.0 [INFO] [stderr] Compiling syn v2.0.117 [INFO] [stderr] Compiling tempfile v3.27.0 [INFO] [stderr] Compiling indexmap v2.13.0 [INFO] [stderr] Compiling rand_chacha v0.10.0 [INFO] [stderr] Compiling parking_lot v0.12.5 [INFO] [stderr] Compiling serde_json v1.0.149 [INFO] [stderr] Compiling rand_distr v0.6.0 [INFO] [stderr] Compiling ctrlc v3.5.2 [INFO] [stderr] Compiling serde_derive v1.0.228 [INFO] [stderr] Compiling thiserror-impl v2.0.18 [INFO] [stderr] Compiling thiserror v2.0.18 [INFO] [stderr] Compiling serde v1.0.228 [INFO] [stderr] Compiling chrono v0.4.41 [INFO] [stdout] warning: unused doc comment [INFO] [stdout] --> src/samplers/qmc.rs:257:1 [INFO] [stdout] | [INFO] [stdout] 257 | / /// Sobol' 序列方向数（1000 维）。 [INFO] [stdout] 258 | | /// 使用 Joe-Kuo 方向数，从 scipy new-joe-kuo-6.21201 (D(6) 搜索准则) 提取。 [INFO] [stdout] 259 | | /// 与 scipy.stats.qmc.Sobol 使用完全相同的数据源。 [INFO] [stdout] 260 | | /// Sobol' 参数表：(s = 原始多项式的阶数, a = 多项式系数, 初始方向数 m_i[]) [INFO] [stdout] 261 | | /// 维度 0 使用 Van der Corput 序列 (s=0, a=0) [INFO] [stdout] | |_---------------------------------------------^ [INFO] [stdout] | | [INFO] [stdout] | rustdoc does not generate documentation for macro invocations [INFO] [stdout] | [INFO] [stdout] = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion [INFO] [stdout] = note: `#[warn(unused_doc_comments)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `CategoricalChoice` [INFO] [stdout] --> src/testing.rs:189:32 [INFO] [stdout] | [INFO] [stdout] 189 | use crate::distributions::{CategoricalChoice, FloatDistribution}; [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 imports: `CategoricalDistribution`, `FloatDistribution`, and `IntDistribution` [INFO] [stdout] --> src/testing.rs:376:51 [INFO] [stdout] | [INFO] [stdout] 376 | use crate::distributions::{CategoricalChoice, FloatDistribution, IntDistribution, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^^ [INFO] [stdout] 377 | CategoricalDistribution}; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated method `trial::fixed::FixedTrial::set_system_attr`: Use user_attrs instead. Will be removed in a future version. [INFO] [stdout] --> src/trial/fixed.rs:338:21 [INFO] [stdout] | [INFO] [stdout] 338 | FixedTrial::set_system_attr(self, key.to_string(), value); [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `last_finished_id` [INFO] [stdout] --> src/storage/cached.rs:259:13 [INFO] [stdout] | [INFO] [stdout] 259 | let last_finished_id = info.map(|i| i.last_finished_trial_id).unwrap_or(-1); [INFO] [stdout] | ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_last_finished_id` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `msg` [INFO] [stdout] --> src/study/core.rs:476:21 [INFO] [stdout] | [INFO] [stdout] 476 | if let Some(msg) = &failure_msg { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_msg` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `e` [INFO] [stdout] --> src/study/core.rs:646:20 [INFO] [stdout] | [INFO] [stdout] 646 | if let Err(e) = after_trial_result { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_e` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `params_cache` is never used [INFO] [stdout] --> src/samplers/gp.rs:295:19 [INFO] [stdout] | [INFO] [stdout] 148 | impl GPRegressor { [INFO] [stdout] | ---------------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 295 | pub(crate) fn params_cache(&self) -> Option { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `get_visited_grid_ids` is never used [INFO] [stdout] --> src/samplers/grid.rs:154:8 [INFO] [stdout] | [INFO] [stdout] 42 | impl GridSampler { [INFO] [stdout] | ---------------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 154 | fn get_visited_grid_ids(&self, trials: &[FrozenTrial]) -> Vec { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `swapping_prob` is never read [INFO] [stdout] --> src/samplers/nsgaii/sampler.rs:49:5 [INFO] [stdout] | [INFO] [stdout] 44 | pub struct NSGAIISampler { [INFO] [stdout] | ------------- field in this struct [INFO] [stdout] ... [INFO] [stdout] 49 | swapping_prob: f64, [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `swapping_prob` is never read [INFO] [stdout] --> src/samplers/nsgaiii/sampler.rs:45:5 [INFO] [stdout] | [INFO] [stdout] 40 | pub struct NSGAIIISampler { [INFO] [stdout] | -------------- field in this struct [INFO] [stdout] ... [INFO] [stdout] 45 | swapping_prob: f64, [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `categorical_distance_func` is never read [INFO] [stdout] --> src/samplers/tpe/sampler.rs:111:5 [INFO] [stdout] | [INFO] [stdout] 79 | pub struct TpeSampler { [INFO] [stdout] | ---------- field in this struct [INFO] [stdout] ... [INFO] [stdout] 111 | categorical_distance_func: Option>, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant `EMMR_MARGIN` is never used [INFO] [stdout] --> src/terminators.rs:716:7 [INFO] [stdout] | [INFO] [stdout] 716 | const EMMR_MARGIN: f64 = 0.1; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&std::string::String` instead of cloning the inner type [INFO] [stdout] --> src/samplers/brute_force.rs:297:52 [INFO] [stdout] | [INFO] [stdout] 297 | dist_pairs.sort_by_key(|(name, _)| name.clone()); [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(suspicious_double_ref_op)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.66s [INFO] running `Command { std: "docker" "inspect" "ce9139720770918530fdbf84b9265422a52154da2c54b1ca1a3b801908828939", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ce9139720770918530fdbf84b9265422a52154da2c54b1ca1a3b801908828939", kill_on_drop: false }` [INFO] [stdout] ce9139720770918530fdbf84b9265422a52154da2c54b1ca1a3b801908828939 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+beta-2026-04-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 86bf67288623aa97650ffa07a6edd0a3cbe2dfdb0f305d3e5e5879d2cdc0f652 [INFO] running `Command { std: "docker" "start" "-a" "86bf67288623aa97650ffa07a6edd0a3cbe2dfdb0f305d3e5e5879d2cdc0f652", kill_on_drop: false }` [INFO] [stdout] warning: unused doc comment [INFO] [stdout] --> src/samplers/qmc.rs:257:1 [INFO] [stdout] | [INFO] [stdout] 257 | / /// Sobol' 序列方向数（1000 维）。 [INFO] [stdout] 258 | | /// 使用 Joe-Kuo 方向数，从 scipy new-joe-kuo-6.21201 (D(6) 搜索准则) 提取。 [INFO] [stdout] 259 | | /// 与 scipy.stats.qmc.Sobol 使用完全相同的数据源。 [INFO] [stdout] 260 | | /// Sobol' 参数表：(s = 原始多项式的阶数, a = 多项式系数, 初始方向数 m_i[]) [INFO] [stdout] 261 | | /// 维度 0 使用 Van der Corput 序列 (s=0, a=0) [INFO] [stdout] | |_---------------------------------------------^ [INFO] [stdout] | | [INFO] [stdout] | rustdoc does not generate documentation for macro invocations [INFO] [stdout] | [INFO] [stdout] = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion [INFO] [stdout] = note: `#[warn(unused_doc_comments)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `CategoricalChoice` [INFO] [stdout] --> src/testing.rs:189:32 [INFO] [stdout] | [INFO] [stdout] 189 | use crate::distributions::{CategoricalChoice, FloatDistribution}; [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 imports: `CategoricalDistribution`, `FloatDistribution`, and `IntDistribution` [INFO] [stdout] --> src/testing.rs:376:51 [INFO] [stdout] | [INFO] [stdout] 376 | use crate::distributions::{CategoricalChoice, FloatDistribution, IntDistribution, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^^ [INFO] [stdout] 377 | CategoricalDistribution}; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated method `trial::fixed::FixedTrial::set_system_attr`: Use user_attrs instead. Will be removed in a future version. [INFO] [stdout] --> src/trial/fixed.rs:338:21 [INFO] [stdout] | [INFO] [stdout] 338 | FixedTrial::set_system_attr(self, key.to_string(), value); [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `last_finished_id` [INFO] [stdout] --> src/storage/cached.rs:259:13 [INFO] [stdout] | [INFO] [stdout] 259 | let last_finished_id = info.map(|i| i.last_finished_trial_id).unwrap_or(-1); [INFO] [stdout] | ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_last_finished_id` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `msg` [INFO] [stdout] --> src/study/core.rs:476:21 [INFO] [stdout] | [INFO] [stdout] 476 | if let Some(msg) = &failure_msg { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_msg` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `e` [INFO] [stdout] --> src/study/core.rs:646:20 [INFO] [stdout] | [INFO] [stdout] 646 | if let Err(e) = after_trial_result { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_e` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `params_cache` is never used [INFO] [stdout] --> src/samplers/gp.rs:295:19 [INFO] [stdout] | [INFO] [stdout] 148 | impl GPRegressor { [INFO] [stdout] | ---------------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 295 | pub(crate) fn params_cache(&self) -> Option { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `get_visited_grid_ids` is never used [INFO] [stdout] --> src/samplers/grid.rs:154:8 [INFO] [stdout] | [INFO] [stdout] 42 | impl GridSampler { [INFO] [stdout] | ---------------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 154 | fn get_visited_grid_ids(&self, trials: &[FrozenTrial]) -> Vec { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `swapping_prob` is never read [INFO] [stdout] --> src/samplers/nsgaii/sampler.rs:49:5 [INFO] [stdout] | [INFO] [stdout] 44 | pub struct NSGAIISampler { [INFO] [stdout] | ------------- field in this struct [INFO] [stdout] ... [INFO] [stdout] 49 | swapping_prob: f64, [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `swapping_prob` is never read [INFO] [stdout] --> src/samplers/nsgaiii/sampler.rs:45:5 [INFO] [stdout] | [INFO] [stdout] 40 | pub struct NSGAIIISampler { [INFO] [stdout] | -------------- field in this struct [INFO] [stdout] ... [INFO] [stdout] 45 | swapping_prob: f64, [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling optuna-rs v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: field `categorical_distance_func` is never read [INFO] [stdout] --> src/samplers/tpe/sampler.rs:111:5 [INFO] [stdout] | [INFO] [stdout] 79 | pub struct TpeSampler { [INFO] [stdout] | ---------- field in this struct [INFO] [stdout] ... [INFO] [stdout] 111 | categorical_distance_func: Option>, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant `EMMR_MARGIN` is never used [INFO] [stdout] --> src/terminators.rs:716:7 [INFO] [stdout] | [INFO] [stdout] 716 | const EMMR_MARGIN: f64 = 0.1; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&std::string::String` instead of cloning the inner type [INFO] [stdout] --> src/samplers/brute_force.rs:297:52 [INFO] [stdout] | [INFO] [stdout] 297 | dist_pairs.sort_by_key(|(name, _)| name.clone()); [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(suspicious_double_ref_op)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `ub` [INFO] [stdout] --> tests/box_decomp_cross_validate.rs:158:14 [INFO] [stdout] | [INFO] [stdout] 158 | let (lb, ub) = get_non_dominated_box_bounds(&vals, &ref_point); [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_ub` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `ub` [INFO] [stdout] --> tests/box_decomp_cross_validate.rs:183:14 [INFO] [stdout] | [INFO] [stdout] 183 | let (lb, ub) = get_non_dominated_box_bounds(&vals, &ref_point); [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_ub` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `ub` [INFO] [stdout] --> tests/box_decomp_cross_validate.rs:198:14 [INFO] [stdout] | [INFO] [stdout] 198 | let (lb, ub) = get_non_dominated_box_bounds(&vals, &ref_point); [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_ub` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `solve_lower` and `solve_upper` [INFO] [stdout] --> tests/deep_cross_validation.rs:18:85 [INFO] [stdout] | [INFO] [stdout] 18 | use optuna_rs::samplers::gp::{matern52, normal_cdf, normal_pdf, log_ndtr, cholesky, solve_lower, solve_upper, GPRegressor}; [INFO] [stdout] | ^^^^^^^^^^^ ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `best_idx` is assigned to, but never used [INFO] [stdout] --> tests/deep_cross_validation.rs:1068:13 [INFO] [stdout] | [INFO] [stdout] 1068 | let mut best_idx = 0; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: consider using `_best_idx` instead [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `best_idx` is never read [INFO] [stdout] --> tests/deep_cross_validation.rs:1074:17 [INFO] [stdout] | [INFO] [stdout] 1074 | best_idx = i; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `RandomSampler` [INFO] [stdout] --> tests/tpe_cross_validate.rs:682:46 [INFO] [stdout] | [INFO] [stdout] 682 | use optuna_rs::samplers::{TpeSamplerBuilder, RandomSampler, Sampler}; [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 `Result` that must be used [INFO] [stdout] --> tests/deep_cross_validation.rs:2731:17 [INFO] [stdout] | [INFO] [stdout] 2731 | trial.set_user_attr("custom_metric", serde_json::json!(x.abs())); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 2731 | let _ = trial.set_user_attr("custom_metric", serde_json::json!(x.abs())); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `get_f64` is never used [INFO] [stdout] --> tests/nsga_cross_validate.rs:16:4 [INFO] [stdout] | [INFO] [stdout] 16 | fn get_f64(val: &serde_json::Value, key: &str) -> 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: unused doc comment [INFO] [stdout] --> src/samplers/qmc.rs:257:1 [INFO] [stdout] | [INFO] [stdout] 257 | / /// Sobol' 序列方向数（1000 维）。 [INFO] [stdout] 258 | | /// 使用 Joe-Kuo 方向数，从 scipy new-joe-kuo-6.21201 (D(6) 搜索准则) 提取。 [INFO] [stdout] 259 | | /// 与 scipy.stats.qmc.Sobol 使用完全相同的数据源。 [INFO] [stdout] 260 | | /// Sobol' 参数表：(s = 原始多项式的阶数, a = 多项式系数, 初始方向数 m_i[]) [INFO] [stdout] 261 | | /// 维度 0 使用 Van der Corput 序列 (s=0, a=0) [INFO] [stdout] | |_---------------------------------------------^ [INFO] [stdout] | | [INFO] [stdout] | rustdoc does not generate documentation for macro invocations [INFO] [stdout] | [INFO] [stdout] = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion [INFO] [stdout] = note: `#[warn(unused_doc_comments)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `CategoricalChoice` [INFO] [stdout] --> src/testing.rs:189:32 [INFO] [stdout] | [INFO] [stdout] 189 | use crate::distributions::{CategoricalChoice, FloatDistribution}; [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 imports: `CategoricalDistribution`, `FloatDistribution`, and `IntDistribution` [INFO] [stdout] --> src/testing.rs:376:51 [INFO] [stdout] | [INFO] [stdout] 376 | use crate::distributions::{CategoricalChoice, FloatDistribution, IntDistribution, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^^ [INFO] [stdout] 377 | CategoricalDistribution}; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated method `trial::fixed::FixedTrial::set_system_attr`: Use user_attrs instead. Will be removed in a future version. [INFO] [stdout] --> src/trial/fixed.rs:338:21 [INFO] [stdout] | [INFO] [stdout] 338 | FixedTrial::set_system_attr(self, key.to_string(), value); [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated method `trial::fixed::FixedTrial::set_system_attr`: Use user_attrs instead. Will be removed in a future version. [INFO] [stdout] --> src/trial/fixed.rs:717:15 [INFO] [stdout] | [INFO] [stdout] 717 | trial.set_system_attr("k1".to_string(), serde_json::json!(1)); [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated method `trial::fixed::FixedTrial::set_system_attr`: Use user_attrs instead. Will be removed in a future version. [INFO] [stdout] --> src/trial/fixed.rs:718:15 [INFO] [stdout] | [INFO] [stdout] 718 | trial.set_system_attr("k2".to_string(), serde_json::json!("v2")); [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `actual` [INFO] [stdout] --> tests/tpe_deep_cross_validate.rs:120:13 [INFO] [stdout] | [INFO] [stdout] 120 | let actual = 0.5 * libm::erfc(-x * std::f64::consts::FRAC_1_SQRT_2); [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_actual` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::collections::HashMap` [INFO] [stdout] --> tests/session_49_ga_operators.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | use std::collections::HashMap; [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: `super::*` [INFO] [stdout] --> tests/session_49_ga_operators.rs:11:9 [INFO] [stdout] | [INFO] [stdout] 11 | use super::*; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `parent2` [INFO] [stdout] --> tests/session_49_ga_operators.rs:22:13 [INFO] [stdout] | [INFO] [stdout] 22 | let parent2 = [10.0, 11.0, 12.0, 13.0, 14.0]; [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_parent2` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `parent1` [INFO] [stdout] --> tests/session_49_ga_operators.rs:35:13 [INFO] [stdout] | [INFO] [stdout] 35 | let parent1 = [0.5, 1.5, 2.5, 3.5, 4.5]; [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_parent1` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `swap_prob` [INFO] [stdout] --> tests/session_49_ga_operators.rs:63:13 [INFO] [stdout] | [INFO] [stdout] 63 | let swap_prob = 0.5; [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_swap_prob` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `mutation_prob` [INFO] [stdout] --> tests/session_49_ga_operators.rs:91:13 [INFO] [stdout] | [INFO] [stdout] 91 | let mutation_prob = 0.0; [INFO] [stdout] | ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_mutation_prob` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `mutation_prob` [INFO] [stdout] --> tests/session_49_ga_operators.rs:104:13 [INFO] [stdout] | [INFO] [stdout] 104 | let mutation_prob = 1.0; [INFO] [stdout] | ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_mutation_prob` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `n_params` [INFO] [stdout] --> tests/session_49_ga_operators.rs:130:13 [INFO] [stdout] | [INFO] [stdout] 130 | let n_params = 5; [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_n_params` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `n_params` [INFO] [stdout] --> tests/session_49_ga_operators.rs:170:13 [INFO] [stdout] | [INFO] [stdout] 170 | let n_params = 8; [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_n_params` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `n_params` [INFO] [stdout] --> tests/session_49_ga_operators.rs:202:13 [INFO] [stdout] | [INFO] [stdout] 202 | let n_params = 10; [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_n_params` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `crossover_prob` [INFO] [stdout] --> tests/session_49_ga_operators.rs:217:13 [INFO] [stdout] | [INFO] [stdout] 217 | let crossover_prob = 0.9; // 90% 概率交叉 [INFO] [stdout] | ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_crossover_prob` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `first_cache` [INFO] [stdout] --> src/samplers/gp.rs:1806:13 [INFO] [stdout] | [INFO] [stdout] 1806 | let first_cache = sampler.gprs_cache.lock().as_ref().unwrap()[0].clone(); [INFO] [stdout] | ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_first_cache` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `expected_sigma_x` [INFO] [stdout] --> tests/pe_advanced_cross_validate.rs:60:9 [INFO] [stdout] | [INFO] [stdout] 60 | let expected_sigma_x = 0.2 * 3.0_f64.powf(-1.0 / 6.0) * 10.0; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_expected_sigma_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: `expected_sigma_y` [INFO] [stdout] --> tests/pe_advanced_cross_validate.rs:62:9 [INFO] [stdout] | [INFO] [stdout] 62 | let expected_sigma_y = 0.2 * 3.0_f64.powf(-1.0 / 6.0) * 10.0; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_expected_sigma_y` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> tests/pe_advanced_cross_validate.rs:300:10 [INFO] [stdout] | [INFO] [stdout] 300 | for (i, (&a, &b)) in logpdf_ep.iter().zip(logpdf_no_ep.iter()).enumerate() { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `gamma` [INFO] [stdout] --> tests/session_49_tpe_weights.rs:142:13 [INFO] [stdout] | [INFO] [stdout] 142 | let gamma = hyperopt_default_gamma(n) as f64; [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_gamma` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `expected_first` [INFO] [stdout] --> tests/session_49_tpe_weights.rs:143:13 [INFO] [stdout] | [INFO] [stdout] 143 | let expected_first = 1.0 / (n as f64); [INFO] [stdout] | ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_expected_first` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/samplers/nsgaii/crossover.rs:674:13 [INFO] [stdout] | [INFO] [stdout] 674 | let mut rs0_sum = 0.0; [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: variable does not need to be mutable [INFO] [stdout] --> src/samplers/nsgaii/crossover.rs:675:13 [INFO] [stdout] | [INFO] [stdout] 675 | let mut rs1_sum = 0.0; [INFO] [stdout] | ----^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `rs0_sum` [INFO] [stdout] --> src/samplers/nsgaii/crossover.rs:674:13 [INFO] [stdout] | [INFO] [stdout] 674 | let mut rs0_sum = 0.0; [INFO] [stdout] | ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_rs0_sum` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `rs1_sum` [INFO] [stdout] --> src/samplers/nsgaii/crossover.rs:675:13 [INFO] [stdout] | [INFO] [stdout] 675 | let mut rs1_sum = 0.0; [INFO] [stdout] | ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_rs1_sum` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/samplers/tpe/sampler.rs:2002:17 [INFO] [stdout] | [INFO] [stdout] 2002 | let mut t = FrozenTrial { [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `last_finished_id` [INFO] [stdout] --> src/storage/cached.rs:259:13 [INFO] [stdout] | [INFO] [stdout] 259 | let last_finished_id = info.map(|i| i.last_finished_trial_id).unwrap_or(-1); [INFO] [stdout] | ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_last_finished_id` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `msg` [INFO] [stdout] --> src/study/core.rs:476:21 [INFO] [stdout] | [INFO] [stdout] 476 | if let Some(msg) = &failure_msg { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_msg` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `e` [INFO] [stdout] --> src/study/core.rs:646:20 [INFO] [stdout] | [INFO] [stdout] 646 | if let Err(e) = after_trial_result { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_e` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `y` [INFO] [stdout] --> src/trial/handle.rs:957:13 [INFO] [stdout] | [INFO] [stdout] 957 | let y = trial.suggest_int_default("y", 1, 100).unwrap(); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_y` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `z` [INFO] [stdout] --> src/trial/handle.rs:958:13 [INFO] [stdout] | [INFO] [stdout] 958 | let z = trial.suggest_categorical("z", vec![ [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_z` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `params_cache` is never used [INFO] [stdout] --> src/samplers/gp.rs:295:19 [INFO] [stdout] | [INFO] [stdout] 148 | impl GPRegressor { [INFO] [stdout] | ---------------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 295 | pub(crate) fn params_cache(&self) -> Option { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `get_visited_grid_ids` is never used [INFO] [stdout] --> src/samplers/grid.rs:154:8 [INFO] [stdout] | [INFO] [stdout] 42 | impl GridSampler { [INFO] [stdout] | ---------------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 154 | fn get_visited_grid_ids(&self, trials: &[FrozenTrial]) -> Vec { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `categorical_distance_func` is never read [INFO] [stdout] --> src/samplers/tpe/sampler.rs:111:5 [INFO] [stdout] | [INFO] [stdout] 79 | pub struct TpeSampler { [INFO] [stdout] | ---------- field in this struct [INFO] [stdout] ... [INFO] [stdout] 111 | categorical_distance_func: Option>, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant `EMMR_MARGIN` is never used [INFO] [stdout] --> src/terminators.rs:716:7 [INFO] [stdout] | [INFO] [stdout] 716 | const EMMR_MARGIN: f64 = 0.1; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&std::string::String` instead of cloning the inner type [INFO] [stdout] --> src/samplers/brute_force.rs:297:52 [INFO] [stdout] | [INFO] [stdout] 297 | dist_pairs.sort_by_key(|(name, _)| name.clone()); [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(suspicious_double_ref_op)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `optuna-rs` (lib test); 22 warnings emitted [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/beta-2026-04-21-x86_64-unknown-linux-gnu/bin/rustc --crate-name optuna_rs --edition=2024 src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --test --cfg 'feature="default"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("aws-config", "aws-sdk-s3", "clap", "cli", "cloud-storage", "dataframe", "default", "gcs", "grpc", "indicatif", "logging", "mlflow", "plotly", "plotters", "polars", "progress", "prost", "rdb", "redis", "redis-storage", "reqwest", "s3", "sea-orm", "tokio", "tonic", "tonic-build", "tracing", "tracing-subscriber", "visualization", "visualization-matplotlib"))' -C metadata=da9cbeb324e6c7ac -C extra-filename=-4ec35e1a7245e7f9 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern chrono=/opt/rustwide/target/debug/deps/libchrono-2720c7f6f3c41ba2.rlib --extern ctrlc=/opt/rustwide/target/debug/deps/libctrlc-34fee5dfba2a185a.rlib --extern indexmap=/opt/rustwide/target/debug/deps/libindexmap-98d359bc481e10db.rlib --extern libm=/opt/rustwide/target/debug/deps/liblibm-6f31f7cd6dc20633.rlib --extern parking_lot=/opt/rustwide/target/debug/deps/libparking_lot-6d48481e6b078f3f.rlib --extern rand=/opt/rustwide/target/debug/deps/librand-4a77e6134d46d322.rlib --extern rand_chacha=/opt/rustwide/target/debug/deps/librand_chacha-338b2687917ffb7f.rlib --extern rand_core=/opt/rustwide/target/debug/deps/librand_core-2fa3c52de9110239.rlib --extern rand_distr=/opt/rustwide/target/debug/deps/librand_distr-80769be21f7579d0.rlib --extern serde=/opt/rustwide/target/debug/deps/libserde-aff6f72fd4b2839c.rlib --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-0e85113e12122263.rlib --extern tempfile=/opt/rustwide/target/debug/deps/libtempfile-b3fe5294203e7c42.rlib --extern thiserror=/opt/rustwide/target/debug/deps/libthiserror-a271942e07afc81f.rlib --extern uuid=/opt/rustwide/target/debug/deps/libuuid-d19dc53a9bd1a9b8.rlib --cap-lints=warn` (signal: 9, SIGKILL: kill) [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "86bf67288623aa97650ffa07a6edd0a3cbe2dfdb0f305d3e5e5879d2cdc0f652", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "86bf67288623aa97650ffa07a6edd0a3cbe2dfdb0f305d3e5e5879d2cdc0f652", kill_on_drop: false }` [INFO] [stdout] 86bf67288623aa97650ffa07a6edd0a3cbe2dfdb0f305d3e5e5879d2cdc0f652