[INFO] fetching crate sudoku-variants 0.1.1...
[INFO] testing sudoku-variants-0.1.1 against 1.49.0 for beta-1.50-1
[INFO] extracting crate sudoku-variants 0.1.1 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate sudoku-variants 0.1.1 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sudoku-variants 0.1.1
[INFO] finished tweaking crates.io crate sudoku-variants 0.1.1
[INFO] tweaked toml for crates.io crate sudoku-variants 0.1.1 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--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/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 43071893e701d0d72a18edc818dd793a341dabc84bcea6c2bcd56404d9731592
[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" "43071893e701d0d72a18edc818dd793a341dabc84bcea6c2bcd56404d9731592", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "43071893e701d0d72a18edc818dd793a341dabc84bcea6c2bcd56404d9731592", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "43071893e701d0d72a18edc818dd793a341dabc84bcea6c2bcd56404d9731592", kill_on_drop: false }`
[INFO] [stdout] 43071893e701d0d72a18edc818dd793a341dabc84bcea6c2bcd56404d9731592
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", 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] 32bcb3f30edae554b7a15a02fc6bb8a2e77631e0b75b1908dce283d2cbd56218
[INFO] running `Command { std: "docker" "start" "-a" "32bcb3f30edae554b7a15a02fc6bb8a2e77631e0b75b1908dce283d2cbd56218", kill_on_drop: false }`
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling sudoku-variants v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.30s
[INFO] running `Command { std: "docker" "inspect" "32bcb3f30edae554b7a15a02fc6bb8a2e77631e0b75b1908dce283d2cbd56218", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "32bcb3f30edae554b7a15a02fc6bb8a2e77631e0b75b1908dce283d2cbd56218", kill_on_drop: false }`
[INFO] [stdout] 32bcb3f30edae554b7a15a02fc6bb8a2e77631e0b75b1908dce283d2cbd56218
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a773fa41385ea34d8829bbff665168bc554b47f31af728f160d484cef87b3326
[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" "a773fa41385ea34d8829bbff665168bc554b47f31af728f160d484cef87b3326", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling oorandom v11.1.3
[INFO] [stderr]    Compiling serde_cbor v0.11.1
[INFO] [stderr]    Compiling plotters v0.2.15
[INFO] [stderr]    Compiling criterion v0.3.3
[INFO] [stderr]    Compiling sudoku-variants v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 28.89s
[INFO] running `Command { std: "docker" "inspect" "a773fa41385ea34d8829bbff665168bc554b47f31af728f160d484cef87b3326", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a773fa41385ea34d8829bbff665168bc554b47f31af728f160d484cef87b3326", kill_on_drop: false }`
[INFO] [stdout] a773fa41385ea34d8829bbff665168bc554b47f31af728f160d484cef87b3326
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] dc484ca3835104a00a7392aa6d00e4c30ec4cf10d774e83a94b6ed61c433f3a5
[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" "dc484ca3835104a00a7392aa6d00e4c30ec4cf10d774e83a94b6ed61c433f3a5", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stdout] running 49 tests
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/sudoku_variants-a95b05f325d064f1
[INFO] [stdout] test constraint::tests::diagonals_violated ... ok
[INFO] [stdout] test constraint::tests::diagonals_satisfied ... ok
[INFO] [stdout] test constraint::tests::dynamic_satisfied ... ok
[INFO] [stdout] test constraint::tests::diagonally_adjacent_violated ... ok
[INFO] [stdout] test constraint::tests::dynamic_violated ... ok
[INFO] [stdout] test constraint::tests::kings_move_satisfied ... ok
[INFO] [stdout] test constraint::tests::kings_move_violated ... ok
[INFO] [stdout] test constraint::tests::diagonally_adjacent_satisfied ... ok
[INFO] [stdout] test constraint::tests::column_satisfied ... ok
[INFO] [stdout] test constraint::tests::knights_move_satisfied ... ok
[INFO] [stdout] test constraint::tests::knights_move_violated ... ok
[INFO] [stdout] test constraint::tests::row_satisfied ... ok
[INFO] [stdout] test constraint::tests::block_violated ... ok
[INFO] [stdout] test constraint::tests::row_violated ... ok
[INFO] [stdout] test generator::tests::generated_sudoku_full ... ok
[INFO] [stdout] test constraint::tests::column_violated ... ok
[INFO] [stdout] test constraint::tests::composite_violated ... ok
[INFO] [stdout] test constraint::tests::block_satisfied ... ok
[INFO] [stdout] test constraint::tests::adjacent_consecutive_violated ... ok
[INFO] [stdout] test constraint::tests::adjacent_consecutive_satisfied ... ok
[INFO] [stdout] test generator::tests::generated_sudoku_valid ... ok
[INFO] [stdout] test constraint::tests::composite_satisfied ... ok
[INFO] [stdout] test tests::empty_is_subset ... ok
[INFO] [stdout] test tests::count_clues_and_empty_and_full ... ok
[INFO] [stdout] test tests::equal_grids_subsets ... ok
[INFO] [stdout] test tests::parse_invalid_number ... ok
[INFO] [stdout] test tests::parse_invalid_dimensions ... ok
[INFO] [stdout] test tests::parse_malformed_dimensions ... ok
[INFO] [stdout] test tests::parse_ok ... ok
[INFO] [stdout] test generator::tests::reduced_sudoku_solveable_by_solver ... ok
[INFO] [stdout] test tests::parse_number_format_error ... ok
[INFO] [stdout] test solver::tests::backtracking_solves_knights_move_sudoku ... ok
[INFO] [stdout] test tests::solution_not_full ... ok
[INFO] [stdout] test tests::parse_wrong_number_of_cells ... ok
[INFO] [stdout] test tests::solution_not_superset ... ok
[INFO] [stdout] test tests::parse_wrong_number_of_parts ... ok
[INFO] [stdout] test tests::solution_correct ... ok
[INFO] [stdout] test solver::tests::backtracking_solves_adjacent_consecutive_sudoku ... ok
[INFO] [stdout] test tests::size ... ok
[INFO] [stdout] test tests::true_subset ... ok
[INFO] [stdout] test tests::solution_violates_constraint ... ok
[INFO] [stdout] test tests::to_parseable_string ... ok
[INFO] [stdout] test tests::unrelated_grids_not_subsets ... ok
[INFO] [stdout] test solver::tests::backtracking_solves_classic_sudoku ... ok
[INFO] [stdout] test solver::tests::backtracking_solves_kings_move_sudoku ... ok
[INFO] [stdout] test generator::tests::shuffling_uniformly_distributed ... ok
[INFO] [stdout] test generator::tests::reduced_sudoku_uniquely_solveable ... ok
[INFO] [stdout] test generator::tests::reduced_sudoku_valid_and_not_full ... ok
[INFO] [stderr]    Doc-tests sudoku-variants
[INFO] [stdout] test solver::tests::backtracking_solves_diagonals_sudoku ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 49 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test src/constraint.rs - constraint (line 74) ... ok
[INFO] [stdout] test src/constraint.rs - constraint (line 42) ... ok
[INFO] [stdout] test src/lib.rs - SudokuGrid::to_parseable_string (line 464) ... ok
[INFO] [stdout] test src/lib.rs - (line 45) ... ok
[INFO] [stdout] test src/lib.rs - (line 25) ... ok
[INFO] [stdout] test src/constraint.rs - constraint::CompositeConstraint (line 578) ... ok
[INFO] [stdout] test src/lib.rs - (line 111) ... ok
[INFO] [stdout] test src/lib.rs - (line 60) ... ok
[INFO] [stdout] test src/lib.rs - (line 159) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "dc484ca3835104a00a7392aa6d00e4c30ec4cf10d774e83a94b6ed61c433f3a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc484ca3835104a00a7392aa6d00e4c30ec4cf10d774e83a94b6ed61c433f3a5", kill_on_drop: false }`
[INFO] [stdout] dc484ca3835104a00a7392aa6d00e4c30ec4cf10d774e83a94b6ed61c433f3a5