[INFO] fetching crate neural-network-study 0.5.0...
[INFO] testing neural-network-study-0.5.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate neural-network-study 0.5.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate neural-network-study 0.5.0
[INFO] finished tweaking crates.io crate neural-network-study 0.5.0
[INFO] tweaked toml for crates.io crate neural-network-study 0.5.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate neural-network-study 0.5.0 on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate neural-network-study 0.5.0 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-2025-09-21" "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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e058f1a9dbf585f9f542667131a60ae7bcc9dfb6684543d0e5262412eed449a6
[INFO] running `Command { std: "docker" "start" "-a" "e058f1a9dbf585f9f542667131a60ae7bcc9dfb6684543d0e5262412eed449a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e058f1a9dbf585f9f542667131a60ae7bcc9dfb6684543d0e5262412eed449a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e058f1a9dbf585f9f542667131a60ae7bcc9dfb6684543d0e5262412eed449a6", kill_on_drop: false }`
[INFO] [stdout] e058f1a9dbf585f9f542667131a60ae7bcc9dfb6684543d0e5262412eed449a6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b8aeaf086216093aed9220140d79d91d65392f03b40f3a7babd5ab721e541737
[INFO] running `Command { std: "docker" "start" "-a" "b8aeaf086216093aed9220140d79d91d65392f03b40f3a7babd5ab721e541737", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.172
[INFO] [stderr]    Compiling getrandom v0.3.2
[INFO] [stderr]    Compiling zerocopy v0.8.25
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling rayon-core v1.12.1
[INFO] [stderr]    Compiling syn v2.0.101
[INFO] [stderr]    Compiling rayon v1.10.0
[INFO] [stderr]    Compiling rand_core v0.9.3
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling rand_chacha v0.9.0
[INFO] [stderr]    Compiling rand v0.9.1
[INFO] [stderr]    Compiling serde_json v1.0.140
[INFO] [stderr]    Compiling neural-network-study v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.92s
[INFO] running `Command { std: "docker" "inspect" "b8aeaf086216093aed9220140d79d91d65392f03b40f3a7babd5ab721e541737", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8aeaf086216093aed9220140d79d91d65392f03b40f3a7babd5ab721e541737", kill_on_drop: false }`
[INFO] [stdout] b8aeaf086216093aed9220140d79d91d65392f03b40f3a7babd5ab721e541737
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 33fa8ecc96a5b043599afa6b3fc809a050862dcc7a9aa87120b04ad6204c6aed
[INFO] running `Command { std: "docker" "start" "-a" "33fa8ecc96a5b043599afa6b3fc809a050862dcc7a9aa87120b04ad6204c6aed", kill_on_drop: false }`
[INFO] [stderr]    Compiling neural-network-study v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.39s
[INFO] running `Command { std: "docker" "inspect" "33fa8ecc96a5b043599afa6b3fc809a050862dcc7a9aa87120b04ad6204c6aed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33fa8ecc96a5b043599afa6b3fc809a050862dcc7a9aa87120b04ad6204c6aed", kill_on_drop: false }`
[INFO] [stdout] 33fa8ecc96a5b043599afa6b3fc809a050862dcc7a9aa87120b04ad6204c6aed
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 8529f402d3ab418bddbe88103825c11fde7f463f4d658ad2b977dbdc2257ec75
[INFO] running `Command { std: "docker" "start" "-a" "8529f402d3ab418bddbe88103825c11fde7f463f4d658ad2b977dbdc2257ec75", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/neural_network_study-fb50268cb0bb9a46)
[INFO] [stdout] 
[INFO] [stdout] running 19 tests
[INFO] [stdout] test matrix::matrix_tests::it_gets_and_sets_mutable_values ... ok
[INFO] [stdout] test matrix::matrix_tests::it_adds_and_assigns ... ok
[INFO] [stdout] test matrix::matrix_tests::it_maps ... ok
[INFO] [stdout] test matrix::matrix_tests::it_adds_matrices ... ok
[INFO] [stdout] test matrix::matrix_tests::it_gets_and_sets_values ... ok
[INFO] [stdout] test matrix::matrix_tests::it_multiplies_by_scalar_in_place ... ok
[INFO] [stdout] test matrix::matrix_tests::it_multiplies_by_scalar ... ok
[INFO] [stdout] test matrix::matrix_tests::it_multiplies_matrices ... ok
[INFO] [stdout] test matrix::matrix_tests::it_creates_a_matrix_from_a_vector ... ok
[INFO] [stdout] test matrix::matrix_tests::it_creates_random_matrix ... ok
[INFO] [stdout] test matrix::matrix_tests::it_transposes_matrix ... ok
[INFO] [stdout] test matrix::matrix_tests::it_works ... ok
[INFO] [stdout] test nn::nn_tests::it_creates_a_neural_network ... ok
[INFO] [stdout] test matrix::matrix_tests::it_returns_mutable_data ... ok
[INFO] [stdout] test nn::nn_tests::it_predicts ... ok
[INFO] [stdout] test matrix::matrix_tests::it_panics_on_out_of_bounds_get - should panic ... ok
[INFO] [stdout] test matrix::matrix_tests::it_panics_on_out_of_bounds_get_mut - should panic ... ok
[INFO] [stdout] test matrix::matrix_tests::it_panics_on_out_of_bounds_set - should panic ... ok
[INFO] [stdout] test matrix::matrix_tests::it_panics_on_out_of_bounds_set_mut - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 19 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.04s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/neural_network_study-e4776a7a2e687e72)
[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] [stderr]    Doc-tests neural_network_study
[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" "8529f402d3ab418bddbe88103825c11fde7f463f4d658ad2b977dbdc2257ec75", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8529f402d3ab418bddbe88103825c11fde7f463f4d658ad2b977dbdc2257ec75", kill_on_drop: false }`
[INFO] [stdout] 8529f402d3ab418bddbe88103825c11fde7f463f4d658ad2b977dbdc2257ec75