[INFO] fetching crate rustimizer 0.1.1...
[INFO] testing rustimizer-0.1.1 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate rustimizer 0.1.1 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate rustimizer 0.1.1
[INFO] finished tweaking crates.io crate rustimizer 0.1.1
[INFO] tweaked toml for crates.io crate rustimizer 0.1.1 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rustimizer 0.1.1 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 crates.io crate rustimizer 0.1.1 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" "+beta-2026-04-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] e7264e7de60f1505edd412497cacfc8cb8d1a83d247d2c23b8141b3daba0807b
[INFO] running `Command { std: "docker" "start" "-a" "e7264e7de60f1505edd412497cacfc8cb8d1a83d247d2c23b8141b3daba0807b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e7264e7de60f1505edd412497cacfc8cb8d1a83d247d2c23b8141b3daba0807b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7264e7de60f1505edd412497cacfc8cb8d1a83d247d2c23b8141b3daba0807b", kill_on_drop: false }`
[INFO] [stdout] e7264e7de60f1505edd412497cacfc8cb8d1a83d247d2c23b8141b3daba0807b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] e68c0d17dabee6816bcbda8d26dfb96cf42a7d51bda986926f1750138e0c7221
[INFO] running `Command { std: "docker" "start" "-a" "e68c0d17dabee6816bcbda8d26dfb96cf42a7d51bda986926f1750138e0c7221", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling libc v0.2.172
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling rustix v1.0.7
[INFO] [stderr]    Compiling matrixmultiply v0.3.10
[INFO] [stderr]    Compiling utf8parse v0.2.2
[INFO] [stderr]    Compiling linux-raw-sys v0.9.4
[INFO] [stderr]    Compiling bitflags v2.9.1
[INFO] [stderr]    Compiling is_terminal_polyfill v1.70.1
[INFO] [stderr]    Compiling anstyle v1.0.11
[INFO] [stderr]    Compiling rawpointer v0.2.1
[INFO] [stderr]    Compiling anstyle-query v1.1.3
[INFO] [stderr]    Compiling colorchoice v1.0.4
[INFO] [stderr]    Compiling zerocopy v0.8.25
[INFO] [stderr]    Compiling clap_lex v0.7.5
[INFO] [stderr]    Compiling syn v2.0.101
[INFO] [stderr]    Compiling unicase v2.8.1
[INFO] [stderr]    Compiling anstyle-parse v0.2.7
[INFO] [stderr]    Compiling equivalent v1.0.2
[INFO] [stderr]    Compiling hashbrown v0.15.3
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling strsim v0.11.1
[INFO] [stderr]    Compiling unicode-width v0.2.1
[INFO] [stderr]    Compiling thiserror v2.0.12
[INFO] [stderr]    Compiling anstream v0.6.19
[INFO] [stderr]    Compiling itertools v0.13.0
[INFO] [stderr]    Compiling indexmap v2.9.0
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling getrandom v0.2.16
[INFO] [stderr]    Compiling num-complex v0.4.6
[INFO] [stderr]    Compiling noisy_float v0.2.0
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling terminal_size v0.4.2
[INFO] [stderr]    Compiling ndarray v0.16.1
[INFO] [stderr]    Compiling clap_builder v4.5.40
[INFO] [stderr]    Compiling ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling clap_derive v4.5.40
[INFO] [stderr]    Compiling thiserror-impl v2.0.12
[INFO] [stderr]    Compiling ndarray-stats v0.6.0
[INFO] [stderr]    Compiling clap v4.5.40
[INFO] [stderr]    Compiling rustimizer v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/variables/values.rs:16:19
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn values(&self) -> ArrayView1<f64> {
[INFO] [stdout]    |                   ^^^^^     ^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                   |
[INFO] [stdout]    |                   the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn values(&self) -> ArrayView1<'_, f64> {
[INFO] [stdout]    |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]  --> src/main.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let args = Args::parse();
[INFO] [stdout]   |         ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [optimized + debuginfo] target(s) in 31.34s
[INFO] running `Command { std: "docker" "inspect" "e68c0d17dabee6816bcbda8d26dfb96cf42a7d51bda986926f1750138e0c7221", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e68c0d17dabee6816bcbda8d26dfb96cf42a7d51bda986926f1750138e0c7221", kill_on_drop: false }`
[INFO] [stdout] e68c0d17dabee6816bcbda8d26dfb96cf42a7d51bda986926f1750138e0c7221
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] fbe1dd6f7ce4a875e068c9c248f847f0fd01299d548f4ea0fde8525de0a70b9b
[INFO] running `Command { std: "docker" "start" "-a" "fbe1dd6f7ce4a875e068c9c248f847f0fd01299d548f4ea0fde8525de0a70b9b", kill_on_drop: false }`
[INFO] [stderr]    Compiling approx v0.5.1
[INFO] [stderr]    Compiling ndarray v0.16.1
[INFO] [stderr]    Compiling ndarray-stats v0.6.0
[INFO] [stderr]    Compiling rustimizer v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/variables/values.rs:16:19
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn values(&self) -> ArrayView1<f64> {
[INFO] [stdout]    |                   ^^^^^     ^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                   |
[INFO] [stdout]    |                   the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn values(&self) -> ArrayView1<'_, f64> {
[INFO] [stdout]    |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/variables/values.rs:16:19
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn values(&self) -> ArrayView1<f64> {
[INFO] [stdout]    |                   ^^^^^     ^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                   |
[INFO] [stdout]    |                   the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn values(&self) -> ArrayView1<'_, f64> {
[INFO] [stdout]    |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]  --> src/main.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let args = Args::parse();
[INFO] [stdout]   |         ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [optimized + debuginfo] target(s) in 12.27s
[INFO] running `Command { std: "docker" "inspect" "fbe1dd6f7ce4a875e068c9c248f847f0fd01299d548f4ea0fde8525de0a70b9b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fbe1dd6f7ce4a875e068c9c248f847f0fd01299d548f4ea0fde8525de0a70b9b", kill_on_drop: false }`
[INFO] [stdout] fbe1dd6f7ce4a875e068c9c248f847f0fd01299d548f4ea0fde8525de0a70b9b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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", kill_on_drop: false }`
[INFO] [stdout] 46dd82e9cb8b0ae8dc00756570526cadf4fae35af66d7419cb74a0e9d4e37b3d
[INFO] running `Command { std: "docker" "start" "-a" "46dd82e9cb8b0ae8dc00756570526cadf4fae35af66d7419cb74a0e9d4e37b3d", kill_on_drop: false }`
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/variables/values.rs:16:19
[INFO] [stderr]    |
[INFO] [stderr] 16 |     pub fn values(&self) -> ArrayView1<f64> {
[INFO] [stderr]    |                   ^^^^^     ^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]    |                   |
[INFO] [stderr]    |                   the lifetime is elided here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 16 |     pub fn values(&self) -> ArrayView1<'_, f64> {
[INFO] [stderr]    |                                        +++
[INFO] [stderr] 
[INFO] [stderr] warning: `rustimizer` (lib) generated 1 warning (run `cargo fix --lib -p rustimizer` to apply 1 suggestion)
[INFO] [stderr] warning: `rustimizer` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr] warning: unused variable: `args`
[INFO] [stderr]  --> src/main.rs:8:9
[INFO] [stderr]   |
[INFO] [stderr] 8 |     let args = Args::parse();
[INFO] [stderr]   |         ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `rustimizer` (bin "rustimizer" test) generated 1 warning (run `cargo fix --bin "rustimizer" -p rustimizer --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [optimized + debuginfo] target(s) in 0.68s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/rustimizer-a5c22525529ae054)
[INFO] [stdout] 
[INFO] [stdout] running 37 tests
[INFO] [stdout] test solver::problem::tests::define_problem_empty_failure ... ok
[INFO] [stdout] test solver::problem::tests::define_problem_redefine_variable_failure ... ok
[INFO] [stdout] test solver::problem::tests::define_problem_variable_with_different_size_failure ... ok
[INFO] [stdout] test solver::problem::tests::solve_problem_with_single_value ... ok
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rustimizer-73229bc406d455b1)
[INFO] [stdout] test solver::problem::tests::test_add_variable ... ok
[INFO] [stdout] test solver::problem::tests::test_problem_matrix_is_rescaled ... ok
[INFO] [stdout] test solver::problem::tests::test_problem_is_solved ... ok
[INFO] [stdout] test solver::vector::tests::l2_norm_single_value_exact ... ok
[INFO] [stdout] test solver::vector::tests::l2_norm_single_value_zero ... ok
[INFO] [stdout] test solver::vector::tests::best_vector_from_matrix_success_2 ... ok
[INFO] [stdout] test solver::vector::tests::l2_norm_vector2_ones ... ok
[INFO] [stdout] test solver::vector::tests::l2_norm_vector_zeros ... ok
[INFO] [stdout] test variables::name::tests::test_ordering ... ok
[INFO] [stdout] test solver::vector::tests::best_vector_from_matrix_success_3 ... ok
[INFO] [stdout] test variables::name::tests::test_try_from_empty_string_failure ... ok
[INFO] [stdout] test variables::name::tests::test_try_from_invalid_string_failure ... ok
[INFO] [stdout] test variables::name::tests::test_try_from_valid_name_str ... ok
[INFO] [stdout] test variables::name::tests::test_try_from_valid_name_string ... ok
[INFO] [stdout] test variables::scaling::tests::rescale_and_invert_vector_full ... ok
[INFO] [stdout] test variables::scaling::tests::rescale_vector_all_values_with_small_precision ... ok
[INFO] [stdout] test variables::scaling::tests::rescale_vector_neg_scaling ... ok
[INFO] [stdout] test variables::scaling::tests::rescale_vector_pos_already_scaled ... ok
[INFO] [stdout] test variables::scaling::tests::rescale_vector_scaling ... ok
[INFO] [stdout] test variables::scaling::tests::rescale_vector_size_one ... ok
[INFO] [stdout] test variables::values::tests::test_try_from_array_size_1 ... ok
[INFO] [stdout] test variables::values::tests::test_try_from_array_size_2 ... ok
[INFO] [stdout] test variables::values::tests::test_try_from_array_with_nan_failure ... ok
[INFO] [stdout] test variables::scaling::tests::rescale_vector_pos_scaling ... ok
[INFO] [stdout] test variables::variableinvertedautoscale::tests::create_variable_with_values_and_rescale ... ok
[INFO] [stdout] test variables::variableautoscale::tests::create_variable_with_values_and_rescale ... ok
[INFO] [stdout] test solver::vector::tests::best_vector_from_matrix_success_1 ... ok
[INFO] [stdout] test variables::values::tests::test_try_from_array_size_0_failure ... ok
[INFO] [stdout] test variables::variableautoscale::tests::create_variable_with_single_value_and_rescale ... ok
[INFO] [stdout] test variables::variableinvertedautoscale::tests::create_variable_with_single_value_and_rescale ... ok
[INFO] [stdout] test variables::values::tests::test_try_from_array_with_infinity_neg_failure ... ok
[INFO] [stdout] test variables::values::tests::test_try_from_array_with_infinity_pos_failure ... ok
[INFO] [stdout] test solver::vector::tests::l2_norm_vector_ones ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 37 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rustimizer
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "46dd82e9cb8b0ae8dc00756570526cadf4fae35af66d7419cb74a0e9d4e37b3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "46dd82e9cb8b0ae8dc00756570526cadf4fae35af66d7419cb74a0e9d4e37b3d", kill_on_drop: false }`
[INFO] [stdout] 46dd82e9cb8b0ae8dc00756570526cadf4fae35af66d7419cb74a0e9d4e37b3d
