[INFO] cloning repository https://github.com/lucabrown/rusty_kernel
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lucabrown/rusty_kernel" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flucabrown%2Frusty_kernel", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flucabrown%2Frusty_kernel'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] efdd1527f56b3c2bc566f916ac0fb51af5e2cbdf
[INFO] checking lucabrown/rusty_kernel against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flucabrown%2Frusty_kernel" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/lucabrown/rusty_kernel on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/lucabrown/rusty_kernel
[INFO] finished tweaking git repo https://github.com/lucabrown/rusty_kernel
[INFO] tweaked toml for git repo https://github.com/lucabrown/rusty_kernel written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/lucabrown/rusty_kernel 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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ndarray-rand v0.14.0
[INFO] [stderr]   Downloaded rust-optimal-transport v0.2.0
[INFO] [stderr]   Downloaded openblas-src v0.10.9
[INFO] [stderr]   Downloaded ndarray-linalg v0.14.1
[INFO] [stderr]   Downloaded pyo3-macros v0.17.3
[INFO] [stderr]   Downloaded lax v0.2.0
[INFO] [stderr]   Downloaded ndarray_einsum_beta v0.7.0
[INFO] [stderr]   Downloaded openblas-build v0.10.9
[INFO] [stderr]   Downloaded noisy_float v0.2.0
[INFO] [stderr]   Downloaded pyo3-build-config v0.17.3
[INFO] [stderr]   Downloaded rustls-native-certs v0.7.1
[INFO] [stderr]   Downloaded pyo3-macros-backend v0.17.3
[INFO] [stderr]   Downloaded pyo3-ffi v0.17.3
[INFO] [stderr]   Downloaded numpy v0.17.2
[INFO] [stderr]   Downloaded cxx-build v1.0.124
[INFO] [stderr]   Downloaded ureq v2.10.0
[INFO] [stderr]   Downloaded cxxbridge-macro v1.0.124
[INFO] [stderr]   Downloaded lapack v0.18.0
[INFO] [stderr]   Downloaded ndarray-stats v0.5.1
[INFO] [stderr]   Downloaded cxx v1.0.124
[INFO] [stderr]   Downloaded cxxbridge-flags v1.0.124
[INFO] [stderr]   Downloaded pyo3 v0.17.3
[INFO] [stderr]   Downloaded lapack-sys v0.12.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b8d02f4c28135ec08377c9e076103188472e7f5d257049bf91bcbc38dda3ccf2
[INFO] running `Command { std: "docker" "start" "-a" "b8d02f4c28135ec08377c9e076103188472e7f5d257049bf91bcbc38dda3ccf2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b8d02f4c28135ec08377c9e076103188472e7f5d257049bf91bcbc38dda3ccf2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8d02f4c28135ec08377c9e076103188472e7f5d257049bf91bcbc38dda3ccf2", kill_on_drop: false }`
[INFO] [stdout] b8d02f4c28135ec08377c9e076103188472e7f5d257049bf91bcbc38dda3ccf2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7ee01034acefa23f01a1190456a123ed175157e4ecf53a262a0b43b36b1cdf3b
[INFO] running `Command { std: "docker" "start" "-a" "7ee01034acefa23f01a1190456a123ed175157e4ecf53a262a0b43b36b1cdf3b", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]    Compiling cc v1.1.5
[INFO] [stderr]    Compiling libm v0.2.8
[INFO] [stderr]    Compiling bitflags v2.6.0
[INFO] [stderr]    Compiling serde v1.0.204
[INFO] [stderr]    Compiling target-lexicon v0.12.14
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling libc v0.2.155
[INFO] [stderr]    Compiling tinyvec v1.8.0
[INFO] [stderr]    Compiling foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling openssl v0.10.64
[INFO] [stderr]    Compiling openssl-probe v0.1.5
[INFO] [stderr]    Compiling base64 v0.22.1
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]    Compiling anyhow v1.0.86
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling foreign-types v0.3.2
[INFO] [stderr]    Compiling thiserror v1.0.63
[INFO] [stderr]    Compiling rustls-pki-types v1.7.0
[INFO] [stderr]    Compiling linux-raw-sys v0.4.14
[INFO] [stderr]    Compiling unicode-bidi v0.3.15
[INFO] [stderr]    Compiling form_urlencoded v1.2.1
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]    Compiling miniz_oxide v0.7.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]    Compiling crc32fast v1.4.2
[INFO] [stderr]    Compiling matrixmultiply v0.3.8
[INFO] [stderr]    Compiling rustls-pemfile v2.1.2
[INFO] [stderr]    Compiling log v0.4.22
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]     Checking cblas-sys v0.1.4
[INFO] [stderr]    Compiling rustls-native-certs v0.7.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling termcolor v1.4.1
[INFO] [stderr]    Compiling cxxbridge-flags v1.0.124
[INFO] [stderr]    Compiling rustix v0.38.34
[INFO] [stderr]    Compiling flate2 v1.0.30
[INFO] [stderr]    Compiling filetime v0.2.23
[INFO] [stderr]    Compiling pyo3-build-config v0.17.3
[INFO] [stderr]    Compiling dirs-sys v0.3.7
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling unicode-normalization v0.1.23
[INFO] [stderr]     Checking memchr v2.7.4
[INFO] [stderr]    Compiling dirs v3.0.2
[INFO] [stderr]    Compiling unicode-width v0.1.13
[INFO] [stderr]     Checking lapack-sys v0.12.1
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling syn v2.0.71
[INFO] [stderr]    Compiling codespan-reporting v0.11.1
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]     Checking regex-syntax v0.8.4
[INFO] [stderr]     Checking parking_lot_core v0.9.10
[INFO] [stderr]    Compiling ahash v0.7.8
[INFO] [stderr]     Checking hashbrown v0.12.3
[INFO] [stderr]     Checking either v1.13.0
[INFO] [stderr]     Checking parking_lot v0.12.3
[INFO] [stderr]    Compiling indoc v1.0.9
[INFO] [stderr]    Compiling idna v0.5.0
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]     Checking lazy_static v1.5.0
[INFO] [stderr]    Compiling openssl-sys v0.9.102
[INFO] [stderr]    Compiling link-cplusplus v1.0.9
[INFO] [stderr]    Compiling cxx v1.0.124
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking approx v0.4.0
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking rand_distr v0.4.3
[INFO] [stderr]     Checking noisy_float v0.2.0
[INFO] [stderr]     Checking once_cell v1.19.0
[INFO] [stderr]     Checking unindent v0.1.11
[INFO] [stderr]    Compiling url v2.5.2
[INFO] [stderr]    Compiling native-tls v0.2.12
[INFO] [stderr]    Compiling pyo3-ffi v0.17.3
[INFO] [stderr]    Compiling pyo3 v0.17.3
[INFO] [stderr]    Compiling xattr v1.3.1
[INFO] [stderr]    Compiling tar v0.4.41
[INFO] [stderr]     Checking regex-automata v0.4.7
[INFO] [stderr]     Checking num-complex v0.4.6
[INFO] [stderr]     Checking ndarray v0.15.6
[INFO] [stderr]     Checking lapack v0.18.0
[INFO] [stderr]     Checking cauchy v0.4.0
[INFO] [stderr]    Compiling cxx-build v1.0.124
[INFO] [stderr]    Compiling openssl-macros v0.1.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.63
[INFO] [stderr]    Compiling cxxbridge-macro v1.0.124
[INFO] [stderr]    Compiling pyo3-macros-backend v0.17.3
[INFO] [stderr]     Checking regex v1.10.5
[INFO] [stderr]    Compiling rust-optimal-transport v0.2.0
[INFO] [stderr]    Compiling pyo3-macros v0.17.3
[INFO] [stderr]     Checking ndarray-rand v0.14.0
[INFO] [stderr]     Checking ndarray_einsum_beta v0.7.0
[INFO] [stderr]     Checking ndarray-stats v0.5.1
[INFO] [stderr]    Compiling ureq v2.10.0
[INFO] [stderr]    Compiling openblas-build v0.10.9
[INFO] [stderr]     Checking numpy v0.17.2
[INFO] [stderr]    Compiling openblas-src v0.10.9
[INFO] [stderr]     Checking lax v0.2.0
[INFO] [stderr]     Checking ndarray-linalg v0.14.1
[INFO] [stderr]     Checking rusty_kernel v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `num_train`
[INFO] [stdout]    --> src/main.rs:131:9
[INFO] [stdout]     |
[INFO] [stdout] 131 |     let num_train: usize = num_samples - num_test;
[INFO] [stdout]     |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_num_train`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `num_train`
[INFO] [stdout]    --> src/main.rs:131:9
[INFO] [stdout]     |
[INFO] [stdout] 131 |     let num_train: usize = num_samples - num_test;
[INFO] [stdout]     |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_num_train`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `target_labels`
[INFO] [stdout]    --> src/main.rs:166:22
[INFO] [stdout]     |
[INFO] [stdout] 166 |         let (graphs, target_labels) = read_data(&folder_path).unwrap();
[INFO] [stdout]     |                      ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_target_labels`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `kernel_matrix`
[INFO] [stdout]    --> src/main.rs:172:13
[INFO] [stdout]     |
[INFO] [stdout] 172 |         let kernel_matrix = kernel.fit_transform(graphs.clone());
[INFO] [stdout]     |             ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_kernel_matrix`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `target_labels`
[INFO] [stdout]    --> src/main.rs:166:22
[INFO] [stdout]     |
[INFO] [stdout] 166 |         let (graphs, target_labels) = read_data(&folder_path).unwrap();
[INFO] [stdout]     |                      ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_target_labels`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `kernel_matrix`
[INFO] [stdout]    --> src/main.rs:172:13
[INFO] [stdout]     |
[INFO] [stdout] 172 |         let kernel_matrix = kernel.fit_transform(graphs.clone());
[INFO] [stdout]     |             ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_kernel_matrix`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `train_test_split` is never used
[INFO] [stdout]    --> src/main.rs:124:4
[INFO] [stdout]     |
[INFO] [stdout] 124 | fn train_test_split(
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `train_test_split` is never used
[INFO] [stdout]    --> src/main.rs:124:4
[INFO] [stdout]     |
[INFO] [stdout] 124 | fn train_test_split(
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.38s
[INFO] running `Command { std: "docker" "inspect" "7ee01034acefa23f01a1190456a123ed175157e4ecf53a262a0b43b36b1cdf3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ee01034acefa23f01a1190456a123ed175157e4ecf53a262a0b43b36b1cdf3b", kill_on_drop: false }`
[INFO] [stdout] 7ee01034acefa23f01a1190456a123ed175157e4ecf53a262a0b43b36b1cdf3b