[INFO] fetching crate max-subarray-sum 0.1.7...
[INFO] testing max-subarray-sum-0.1.7 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate max-subarray-sum 0.1.7 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate max-subarray-sum 0.1.7
[INFO] finished tweaking crates.io crate max-subarray-sum 0.1.7
[INFO] tweaked toml for crates.io crate max-subarray-sum 0.1.7 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate max-subarray-sum 0.1.7 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 3c6ee22b981e4d4aaf975ccfccc1dcfdb5a47146af163bce8570263412862ab4
[INFO] running `Command { std: "docker" "start" "-a" "3c6ee22b981e4d4aaf975ccfccc1dcfdb5a47146af163bce8570263412862ab4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3c6ee22b981e4d4aaf975ccfccc1dcfdb5a47146af163bce8570263412862ab4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c6ee22b981e4d4aaf975ccfccc1dcfdb5a47146af163bce8570263412862ab4", kill_on_drop: false }`
[INFO] [stdout] 3c6ee22b981e4d4aaf975ccfccc1dcfdb5a47146af163bce8570263412862ab4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 4c43909f72cba241a5906179a72c866f5bc2253326c5f17c6feb813ddc3a9c30
[INFO] running `Command { std: "docker" "start" "-a" "4c43909f72cba241a5906179a72c866f5bc2253326c5f17c6feb813ddc3a9c30", kill_on_drop: false }`
[INFO] [stderr]    Compiling max-subarray-sum v0.1.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.11s
[INFO] running `Command { std: "docker" "inspect" "4c43909f72cba241a5906179a72c866f5bc2253326c5f17c6feb813ddc3a9c30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c43909f72cba241a5906179a72c866f5bc2253326c5f17c6feb813ddc3a9c30", kill_on_drop: false }`
[INFO] [stdout] 4c43909f72cba241a5906179a72c866f5bc2253326c5f17c6feb813ddc3a9c30
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 99a5a763f452aca74d09cce2b253c6510a5c47ade4c9ee22988cfe6f2f7fc95c
[INFO] running `Command { std: "docker" "start" "-a" "99a5a763f452aca74d09cce2b253c6510a5c47ade4c9ee22988cfe6f2f7fc95c", kill_on_drop: false }`
[INFO] [stderr]    Compiling max-subarray-sum v0.1.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.33s
[INFO] running `Command { std: "docker" "inspect" "99a5a763f452aca74d09cce2b253c6510a5c47ade4c9ee22988cfe6f2f7fc95c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "99a5a763f452aca74d09cce2b253c6510a5c47ade4c9ee22988cfe6f2f7fc95c", kill_on_drop: false }`
[INFO] [stdout] 99a5a763f452aca74d09cce2b253c6510a5c47ade4c9ee22988cfe6f2f7fc95c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 7cce4e1091ef07b4e838e53fa7f12007285f2c3ed9e99b1a9e8626cdd053da9f
[INFO] running `Command { std: "docker" "start" "-a" "7cce4e1091ef07b4e838e53fa7f12007285f2c3ed9e99b1a9e8626cdd053da9f", kill_on_drop: false }`
[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 8 tests
[INFO] [stdout] test tests::all_negative ... ok
[INFO] [stdout] test tests::all_positive ... ok
[INFO] [stdout] test tests::identical_negative ... ok
[INFO] [stdout] test tests::identical_positive ... ok
[INFO] [stdout] test tests::mixed_2 ... ok
[INFO] [stdout] test tests::mixed_1 ... ok
[INFO] [stdout] test tests::mixed_3 ... ok
[INFO] [stdout] test tests::all_zero ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/max_subarray_sum-72ae4d8342f8a013)
[INFO] [stderr]      Running tests/integration_test.rs (/opt/rustwide/target/debug/deps/integration_test-9b1aa5e5c18122b1)
[INFO] [stderr]    Doc-tests max_subarray_sum
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - (line 11) ... FAILED
[INFO] [stdout] test src/interface.rs - interface::Elements<'list>::result (line 49) ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 11) stdout ----
[INFO] [stdout] error[E0432]: unresolved import `max_subarray_sum::Elements`
[INFO] [stdout]  --> src/lib.rs:13:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use max_subarray_sum::Elements;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^ no `Elements` in the root
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing this struct instead
[INFO] [stdout]   |
[INFO] [stdout] 5 | use max_subarray_sum::interface::Elements;
[INFO] [stdout]   |                       +++++++++++
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 11)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 1 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.20s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "7cce4e1091ef07b4e838e53fa7f12007285f2c3ed9e99b1a9e8626cdd053da9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7cce4e1091ef07b4e838e53fa7f12007285f2c3ed9e99b1a9e8626cdd053da9f", kill_on_drop: false }`
[INFO] [stdout] 7cce4e1091ef07b4e838e53fa7f12007285f2c3ed9e99b1a9e8626cdd053da9f