[INFO] fetching crate sudokugen 0.3.0...
[INFO] testing sudokugen-0.3.0 against 1.60.0 for beta-1.61-1
[INFO] extracting crate sudokugen 0.3.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate sudokugen 0.3.0 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sudokugen 0.3.0
[INFO] finished tweaking crates.io crate sudokugen 0.3.0
[INFO] tweaked toml for crates.io crate sudokugen 0.3.0 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ffcd375468c43915b09639812542eeca9f1f2f22846b932665f0d01fdf4250c1
[INFO] running `Command { std: "docker" "start" "-a" "ffcd375468c43915b09639812542eeca9f1f2f22846b932665f0d01fdf4250c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ffcd375468c43915b09639812542eeca9f1f2f22846b932665f0d01fdf4250c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ffcd375468c43915b09639812542eeca9f1f2f22846b932665f0d01fdf4250c1", kill_on_drop: false }`
[INFO] [stdout] ffcd375468c43915b09639812542eeca9f1f2f22846b932665f0d01fdf4250c1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9ad61be7ecc47bfde463b6bca747689c06971c5344772c1078b01f587c0fed68
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "9ad61be7ecc47bfde463b6bca747689c06971c5344772c1078b01f587c0fed68", kill_on_drop: false }`
[INFO] [stderr]    Compiling sudokugen v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.66s
[INFO] running `Command { std: "docker" "inspect" "9ad61be7ecc47bfde463b6bca747689c06971c5344772c1078b01f587c0fed68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ad61be7ecc47bfde463b6bca747689c06971c5344772c1078b01f587c0fed68", kill_on_drop: false }`
[INFO] [stdout] 9ad61be7ecc47bfde463b6bca747689c06971c5344772c1078b01f587c0fed68
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d96580b74a91281bb9541fb64594ab5e03ac91d4108d36d1f2d62041e155102d
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "d96580b74a91281bb9541fb64594ab5e03ac91d4108d36d1f2d62041e155102d", kill_on_drop: false }`
[INFO] [stderr]    Compiling criterion v0.3.5
[INFO] [stderr]    Compiling sudokugen v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 17.91s
[INFO] running `Command { std: "docker" "inspect" "d96580b74a91281bb9541fb64594ab5e03ac91d4108d36d1f2d62041e155102d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d96580b74a91281bb9541fb64594ab5e03ac91d4108d36d1f2d62041e155102d", kill_on_drop: false }`
[INFO] [stdout] d96580b74a91281bb9541fb64594ab5e03ac91d4108d36d1f2d62041e155102d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 1c54dda7129261f101731aef8865714e3252312a260c4924d84282c2b762db04
[INFO] running `Command { std: "docker" "start" "-a" "1c54dda7129261f101731aef8865714e3252312a260c4924d84282c2b762db04", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.15s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/sudokugen-9c4886cdeedf8d28)
[INFO] [stdout] 
[INFO] [stdout] running 28 tests
[INFO] [stdout] test board::test::basics ... ok
[INFO] [stdout] test board::test::from ... ok
[INFO] [stdout] test board::test::possible_values ... ok
[INFO] [stdout] test board::test::possible_values_is_zero ... ok
[INFO] [stdout] test board::test::set_value ... ok
[INFO] [stdout] test board::test::square ... ok
[INFO] [stdout] test board::test::iter_square ... ok
[INFO] [stdout] test solver::candidate_cache::tests::set_value_updates_possible_loc ... ok
[INFO] [stdout] test solver::candidate_cache::tests::possible_locs_after_parse ... ok
[INFO] [stdout] test solver::indexed_map::test::remove ... ok
[INFO] [stdout] test board::test::iter_cells ... ok
[INFO] [stdout] test solver::candidate_cache::tests::possible_values_after_parse ... ok
[INFO] [stdout] test solver::indexed_map::test::keys ... ok
[INFO] [stdout] test solver::tests::hidden_singles_after_backtrack ... ok
[INFO] [stdout] test solver::tests::naked_singles ... ok
[INFO] [stdout] test solver::candidate_cache::tests::test_set_value_removes_cell_as_candidate_for_other_values ... ok
[INFO] [stdout] test solver::candidate_cache::tests::test_undo ... ok
[INFO] [stdout] test solver::candidate_cache::tests::set_value_updates_possible_values ... ok
[INFO] [stdout] test solver::tests::register_move_results_in_error ... ok
[INFO] [stdout] test solver::indexed_map::test::entry_default ... ok
[INFO] [stdout] test solver::indexed_map::test::entry_is_mut ... ok
[INFO] [stdout] test solver::indexed_map::test::get ... ok
[INFO] [stdout] test solver::indexed_map::test::get_mut ... ok
[INFO] [stdout] test solver::indexed_map::test::insert ... ok
[INFO] [stdout] test solver::indexed_map::test::is_empty ... ok
[INFO] [stdout] test solver::indexed_map::test::iter ... ok
[INFO] [stdout] test solver::candidate_cache::tests::test_iter_candidates ... ok
[INFO] [stdout] test solver::tests::hidden_singles ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 28 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.04s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/integration.rs (/opt/rustwide/target/debug/deps/integration-da5c3e4ba1c29ba8)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test test_solved ... ok
[INFO] [stdout] test solve_sudoku_with_backtrack ... ok
[INFO] [stdout] test solve_sudoku_simple ... ok
[INFO] [stdout] test generate_test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.55s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests sudokugen
[INFO] [stdout] 
[INFO] [stdout] running 36 tests
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2021 --crate-type lib --crate-name sudokugen --test /opt/rustwide/workdir/src/lib.rs -L dependency=/opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern criterion=/opt/rustwide/target/debug/deps/libcriterion-c904b8ec3cdd72ca.rlib --extern rand=/opt/rustwide/target/debug/deps/librand-f29187ca0a1f9e7a.rlib --extern rayon=/opt/rustwide/target/debug/deps/librayon-7bc6a16e28688a44.rlib --extern sudokugen=/opt/rustwide/target/debug/deps/libsudokugen-e44d232122408744.rlib -C embed-bitcode=no --error-format human` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "1c54dda7129261f101731aef8865714e3252312a260c4924d84282c2b762db04", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c54dda7129261f101731aef8865714e3252312a260c4924d84282c2b762db04", kill_on_drop: false }`
[INFO] [stdout] 1c54dda7129261f101731aef8865714e3252312a260c4924d84282c2b762db04