[INFO] fetching crate rudoku-core 0.1.0...
[INFO] testing rudoku-core-0.1.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate rudoku-core 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate rudoku-core 0.1.0 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 rudoku-core 0.1.0
[INFO] finished tweaking crates.io crate rudoku-core 0.1.0
[INFO] tweaked toml for crates.io crate rudoku-core 0.1.0 written to /workspace/builds/worker-4/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] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 444556b7205a748fa8555644e92fe14cf624fe1387deccd97e7ac0ea39d5ad2f
[INFO] running `Command { std: "docker" "start" "-a" "444556b7205a748fa8555644e92fe14cf624fe1387deccd97e7ac0ea39d5ad2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "444556b7205a748fa8555644e92fe14cf624fe1387deccd97e7ac0ea39d5ad2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "444556b7205a748fa8555644e92fe14cf624fe1387deccd97e7ac0ea39d5ad2f", kill_on_drop: false }`
[INFO] [stdout] 444556b7205a748fa8555644e92fe14cf624fe1387deccd97e7ac0ea39d5ad2f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 831d805eb4ec5e601c78a924149e8d6012814768da147d1035fb7aeb8d948013
[INFO] running `Command { std: "docker" "start" "-a" "831d805eb4ec5e601c78a924149e8d6012814768da147d1035fb7aeb8d948013", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling rudoku-core v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.91s
[INFO] running `Command { std: "docker" "inspect" "831d805eb4ec5e601c78a924149e8d6012814768da147d1035fb7aeb8d948013", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "831d805eb4ec5e601c78a924149e8d6012814768da147d1035fb7aeb8d948013", kill_on_drop: false }`
[INFO] [stdout] 831d805eb4ec5e601c78a924149e8d6012814768da147d1035fb7aeb8d948013
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 1eab553ab5508ac58e0719a8c54c69aeecd0fcd2198539995a8cd0c8d1615be6
[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" "1eab553ab5508ac58e0719a8c54c69aeecd0fcd2198539995a8cd0c8d1615be6", kill_on_drop: false }`
[INFO] [stderr]    Compiling rudoku-core v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.06s
[INFO] running `Command { std: "docker" "inspect" "1eab553ab5508ac58e0719a8c54c69aeecd0fcd2198539995a8cd0c8d1615be6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1eab553ab5508ac58e0719a8c54c69aeecd0fcd2198539995a8cd0c8d1615be6", kill_on_drop: false }`
[INFO] [stdout] 1eab553ab5508ac58e0719a8c54c69aeecd0fcd2198539995a8cd0c8d1615be6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 6a3f6af052754a9043fc3894896645bc8e581b3698aa87445671357e930d1c00
[INFO] running `Command { std: "docker" "start" "-a" "6a3f6af052754a9043fc3894896645bc8e581b3698aa87445671357e930d1c00", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rudoku_core-08985a20342f922c
[INFO] [stdout] 
[INFO] [stdout] running 25 tests
[INFO] [stdout] test sudoku::sudoku_value::tests::from_i32 ... ok
[INFO] [stdout] test sudoku::tests::count_other ... ok
[INFO] [stdout] test sudoku::tests::count_9 ... ok
[INFO] [stdout] test sudoku::sudoku_value::tests::to_string ... ok
[INFO] [stdout] test sudoku::tests::get_column ... ok
[INFO] [stdout] test sudoku::tests::get_row ... ok
[INFO] [stdout] test sudoku::tests::from_string ... ok
[INFO] [stdout] test sudoku::tests::decimate_81 ... ok
[INFO] [stdout] test sudoku::tests::check_false ... ok
[INFO] [stdout] test sudoku::sudoku_value::tests::iterator ... ok
[INFO] [stdout] test sudoku::tests::get_square ... ok
[INFO] [stdout] test sudoku::sudoku_value::tests::get_number_array ... ok
[INFO] [stdout] test sudoku::tests::solved_false ... ok
[INFO] [stdout] test util::tests::has_only_unique_elements_3 ... ok
[INFO] [stdout] test sudoku::tests::solved_true ... ok
[INFO] [stdout] test util::tests::has_only_unique_elements_1 ... ok
[INFO] [stdout] test util::tests::has_only_unique_elements_2 ... ok
[INFO] [stdout] test sudoku::tests::check_true ... ok
[INFO] [stdout] test sudoku::tests::check_panic ... ok
[INFO] [stdout] test sudoku::tests::decimate_82 ... ok
[INFO] [stdout] test sudoku::tests::decimate_16 ... ok
[INFO] [stdout] test sudoku::tests::solve ... ok
[INFO] [stdout] test sudoku::tests::fill_check ... ok
[INFO] [stdout] test sudoku::tests::fill_random ... ok
[INFO] [stdout] test sudoku::tests::decimate_30 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 25 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rudoku-core
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "6a3f6af052754a9043fc3894896645bc8e581b3698aa87445671357e930d1c00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a3f6af052754a9043fc3894896645bc8e581b3698aa87445671357e930d1c00", kill_on_drop: false }`
[INFO] [stdout] 6a3f6af052754a9043fc3894896645bc8e581b3698aa87445671357e930d1c00