[INFO] fetching crate scirs2-metrics 0.1.0-rc.2...
[INFO] checking scirs2-metrics-0.1.0-rc.2 against try#c9557a20e5ef2e0e02c29a5fafd850d1b7cf1e4f for 2025-12-16-next-solver-global
[INFO] extracting crate scirs2-metrics 0.1.0-rc.2 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate scirs2-metrics 0.1.0-rc.2
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate scirs2-metrics 0.1.0-rc.2
[INFO] tweaked toml for crates.io crate scirs2-metrics 0.1.0-rc.2 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate scirs2-metrics 0.1.0-rc.2 on toolchain c9557a20e5ef2e0e02c29a5fafd850d1b7cf1e4f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c9557a20e5ef2e0e02c29a5fafd850d1b7cf1e4f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate scirs2-metrics 0.1.0-rc.2 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" "+c9557a20e5ef2e0e02c29a5fafd850d1b7cf1e4f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+c9557a20e5ef2e0e02c29a5fafd850d1b7cf1e4f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b1b889074577ea0581adbbb3d9aed3eab642ef545a155c94e7d35ebfdc9371d0
[INFO] running `Command { std: "docker" "start" "-a" "b1b889074577ea0581adbbb3d9aed3eab642ef545a155c94e7d35ebfdc9371d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b1b889074577ea0581adbbb3d9aed3eab642ef545a155c94e7d35ebfdc9371d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b1b889074577ea0581adbbb3d9aed3eab642ef545a155c94e7d35ebfdc9371d0", kill_on_drop: false }`
[INFO] [stdout] b1b889074577ea0581adbbb3d9aed3eab642ef545a155c94e7d35ebfdc9371d0
[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=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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+c9557a20e5ef2e0e02c29a5fafd850d1b7cf1e4f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f55a6a88da3ed0ec598c41bbe4649ab64b6a7d207597e77284825a5fd9f4d24e
[INFO] running `Command { std: "docker" "start" "-a" "f55a6a88da3ed0ec598c41bbe4649ab64b6a7d207597e77284825a5fd9f4d24e", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling matrixmultiply v0.3.10
[INFO] [stderr]     Checking bytemuck v1.23.2
[INFO] [stderr]     Checking getrandom v0.3.3
[INFO] [stderr]     Checking serde_json v1.0.145
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking approx v0.5.1
[INFO] [stderr]    Compiling typeid v1.0.3
[INFO] [stderr]    Compiling basic-toml v0.1.10
[INFO] [stderr]    Compiling erased-serde v0.4.8
[INFO] [stderr]    Compiling rustc-hash v2.1.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking crossbeam-queue v0.3.12
[INFO] [stderr]     Checking crossbeam-channel v0.5.15
[INFO] [stderr]     Checking winnow v0.7.13
[INFO] [stderr]    Compiling scirs2-core v0.1.0-rc.2
[INFO] [stderr]     Checking parking_lot_core v0.9.11
[INFO] [stderr]     Checking num_cpus v1.17.0
[INFO] [stderr]     Checking toml_datetime v0.7.2
[INFO] [stderr]     Checking safe_arch v0.7.4
[INFO] [stderr]     Checking serde_spanned v1.0.2
[INFO] [stderr]     Checking toml_writer v1.0.3
[INFO] [stderr]     Checking unsafe-libyaml v0.2.11
[INFO] [stderr]    Compiling scirs2-metrics v0.1.0-rc.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking rand_core v0.9.3
[INFO] [stderr]     Checking parking_lot v0.12.4
[INFO] [stderr]     Checking num-rational v0.4.2
[INFO] [stderr]     Checking wide v0.7.33
[INFO] [stderr]     Checking rand_chacha v0.9.0
[INFO] [stderr]     Checking crossbeam v0.8.4
[INFO] [stderr]     Checking rand v0.9.2
[INFO] [stderr]     Checking rand_distr v0.4.3
[INFO] [stderr]     Checking rand_distr v0.5.1
[INFO] [stderr]     Checking simba v0.9.1
[INFO] [stderr]     Checking toml_parser v1.0.3
[INFO] [stderr]     Checking toml v0.9.7
[INFO] [stderr]    Compiling darling_core v0.21.3
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling thiserror-impl v2.0.17
[INFO] [stderr]    Compiling serde_repr v0.1.20
[INFO] [stderr]     Checking nalgebra v0.33.2
[INFO] [stderr]     Checking thiserror v2.0.17
[INFO] [stderr]    Compiling darling_macro v0.21.3
[INFO] [stderr]    Compiling darling v0.21.3
[INFO] [stderr]    Compiling serde_with_macros v3.14.1
[INFO] [stderr]    Compiling plotly_derive v0.13.5
[INFO] [stderr]     Checking serde v1.0.228
[INFO] [stderr]    Compiling askama_parser v0.14.0
[INFO] [stderr]     Checking ndarray v0.16.1
[INFO] [stderr]     Checking chrono v0.4.42
[INFO] [stderr]     Checking ciborium v0.2.2
[INFO] [stderr]     Checking uuid v1.18.1
[INFO] [stderr]     Checking serde_yaml v0.9.34+deprecated
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking serde_with v3.14.1
[INFO] [stderr]     Checking criterion v0.7.0
[INFO] [stderr]    Compiling askama_derive v0.14.0
[INFO] [stderr]     Checking ndarray-rand v0.15.0
[INFO] [stderr]     Checking askama v0.14.0
[INFO] [stderr]     Checking plotly v0.13.5
[INFO] [stderr]     Checking statrs v0.18.0
[INFO] [stdout] warning: value assigned to `tn` is never read
[INFO] [stdout]    --> src/domains/graph_neural_networks/node_level.rs:143:39
[INFO] [stdout]     |
[INFO] [stdout] 143 |                     (false, false) => tn += 1,
[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: value assigned to `tn` is never read
[INFO] [stdout]    --> src/domains/graph_neural_networks/node_level.rs:143:39
[INFO] [stdout]     |
[INFO] [stdout] 143 |                     (false, false) => tn += 1,
[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] [stderr] error: could not compile `scirs2-metrics` (lib test); 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/c9557a20e5ef2e0e02c29a5fafd850d1b7cf1e4f/bin/rustc --crate-name scirs2_metrics --edition=2021 src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 --allow=unused_variables --allow=unused_mut --allow=unused_imports --allow=unpredictable_function_pointer_comparisons --allow=unknown_lints --allow=mismatched_lifetime_syntaxes --allow=dead_code --test --cfg 'feature="default"' --cfg 'feature="optim_integration"' --cfg 'feature="plotly_backend"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("dashboard_server", "default", "neural_common", "optim_integration", "plotly_backend", "plotters_backend"))' -C metadata=c9504da4c73b782c -C extra-filename=-a281294d72760a3c --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern approx=/opt/rustwide/target/debug/deps/libapprox-47411005e50c8fb9.rmeta --extern chrono=/opt/rustwide/target/debug/deps/libchrono-b6f3be869a8ba96f.rmeta --extern ciborium=/opt/rustwide/target/debug/deps/libciborium-af2e0645f04c4f8e.rmeta --extern criterion=/opt/rustwide/target/debug/deps/libcriterion-7f268898bc66dd5b.rmeta --extern crossbeam_utils=/opt/rustwide/target/debug/deps/libcrossbeam_utils-1c9006e854b046b8.rmeta --extern num_cpus=/opt/rustwide/target/debug/deps/libnum_cpus-66c358826d8f599c.rmeta --extern parking_lot=/opt/rustwide/target/debug/deps/libparking_lot-d75335bb90f9a46a.rmeta --extern plotly=/opt/rustwide/target/debug/deps/libplotly-223fe9feb385f555.rmeta --extern scirs2_core=/opt/rustwide/target/debug/deps/libscirs2_core-b07d8f9ad3d1e72b.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-4e628fdb8e59a708.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-1c29ea55e4fea561.rmeta --extern serde_yaml=/opt/rustwide/target/debug/deps/libserde_yaml-a906c2b6ee557aff.rmeta --extern statrs=/opt/rustwide/target/debug/deps/libstatrs-d666a522d4115b0a.rmeta --extern thiserror=/opt/rustwide/target/debug/deps/libthiserror-72d9e031f96633fa.rmeta --extern toml=/opt/rustwide/target/debug/deps/libtoml-ee02eda9fbf3ecc6.rmeta --cap-lints=forbid -L native=/usr/lib/x86_64-linux-gnu -L native=/lib/x86_64-linux-gnu -L native=/usr/lib/x86_64-linux-gnu/openblas-pthread -L native=/usr/lib/x86_64-linux-gnu -L native=/usr/lib/x86_64-linux-gnu/openblas-pthread -l pthread -l gfortran -l gomp -l openblas -C link-arg=-Wl,--start-group -C link-arg=-Wl,--end-group` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: value assigned to `tn` is never read
[INFO] [stdout]    --> src/sklearn_compat.rs:127:27
[INFO] [stdout]     |
[INFO] [stdout] 127 |                 (0, 0) => tn += 1,
[INFO] [stdout]     |                           ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f55a6a88da3ed0ec598c41bbe4649ab64b6a7d207597e77284825a5fd9f4d24e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f55a6a88da3ed0ec598c41bbe4649ab64b6a7d207597e77284825a5fd9f4d24e", kill_on_drop: false }`
[INFO] [stdout] f55a6a88da3ed0ec598c41bbe4649ab64b6a7d207597e77284825a5fd9f4d24e