[INFO] fetching crate sudoku-solver 0.4.0...
[INFO] testing sudoku-solver-0.4.0 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate sudoku-solver 0.4.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate sudoku-solver 0.4.0 on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sudoku-solver 0.4.0
[INFO] finished tweaking crates.io crate sudoku-solver 0.4.0
[INFO] tweaked toml for crates.io crate sudoku-solver 0.4.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+beta-2022-04-10" "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] 17f88582eca7cd685bab2b5c7a4c1f9195d57caf64062c044ae2932688cf853a
[INFO] running `Command { std: "docker" "start" "-a" "17f88582eca7cd685bab2b5c7a4c1f9195d57caf64062c044ae2932688cf853a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "17f88582eca7cd685bab2b5c7a4c1f9195d57caf64062c044ae2932688cf853a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17f88582eca7cd685bab2b5c7a4c1f9195d57caf64062c044ae2932688cf853a", kill_on_drop: false }`
[INFO] [stdout] 17f88582eca7cd685bab2b5c7a4c1f9195d57caf64062c044ae2932688cf853a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+beta-2022-04-10" "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] 001d68646f444502417a5987d477a64765095121a5b8ac56ab7e88012501b876
[INFO] running `Command { std: "docker" "start" "-a" "001d68646f444502417a5987d477a64765095121a5b8ac56ab7e88012501b876", kill_on_drop: false }`
[INFO] [stderr]    Compiling bit-iter v1.1.0
[INFO] [stderr]    Compiling sudoku-solver v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.04s
[INFO] running `Command { std: "docker" "inspect" "001d68646f444502417a5987d477a64765095121a5b8ac56ab7e88012501b876", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "001d68646f444502417a5987d477a64765095121a5b8ac56ab7e88012501b876", kill_on_drop: false }`
[INFO] [stdout] 001d68646f444502417a5987d477a64765095121a5b8ac56ab7e88012501b876
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8d45d4b26d134b296ca9e0cd705c8438c9f4f09d065932a35c79c056f06614ca
[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" "8d45d4b26d134b296ca9e0cd705c8438c9f4f09d065932a35c79c056f06614ca", kill_on_drop: false }`
[INFO] [stderr]    Compiling criterion v0.3.5
[INFO] [stderr]    Compiling sudoku-solver v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 16.00s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/sudoku_solver-33ba28472db17131)
[INFO] running `Command { std: "docker" "inspect" "8d45d4b26d134b296ca9e0cd705c8438c9f4f09d065932a35c79c056f06614ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d45d4b26d134b296ca9e0cd705c8438c9f4f09d065932a35c79c056f06614ca", kill_on_drop: false }`
[INFO] [stdout] 8d45d4b26d134b296ca9e0cd705c8438c9f4f09d065932a35c79c056f06614ca
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+beta-2022-04-10" "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] da445f7a016c99dcab1b26fb21b0dafb982c6befc031a7ae1b045dd5b8dacd26
[INFO] running `Command { std: "docker" "start" "-a" "da445f7a016c99dcab1b26fb21b0dafb982c6befc031a7ae1b045dd5b8dacd26", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/sudoku_solver-33ba28472db17131)
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test board::tests::string_rep_of_board_is_correct ... ok
[INFO] [stdout] test solver::tests::invalid_cell_values_are_detected ... ok
[INFO] [stdout] test solver::tests::duplicate_in_column_is_detected ... ok
[INFO] [stdout] test solver::tests::duplicate_in_square_is_detected ... ok
[INFO] [stdout] test solver::tests::finds_multiple_solutions ... ok
[INFO] [stdout] test solver::tests::duplicate_in_row_is_detected ... ok
[INFO] [stdout] test solver::tests::detects_unsolvable_puzzles ... ok
[INFO] [stdout] test solver::tests::valid_board_is_passed ... ok
[INFO] [stdout] test solver::tests::solves_solvable_puzzles ... ok
[INFO] [stderr]    Doc-tests sudoku-solver
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.56s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test src/board/mod.rs - board::Board::from (line 100) ... ok
[INFO] [stdout] test src/solver/mod.rs - solver::solve (line 163) ... ok
[INFO] [stdout] test src/solver/mod.rs - solver::valid (line 24) ... ok
[INFO] [stdout] test src/solver/mod.rs - solver::SolutionIter (line 193) ... ok
[INFO] [stdout] test src/board/mod.rs - board::Board::with_cell (line 77) ... ok
[INFO] [stdout] test src/board/mod.rs - board::Board::set_cell (line 58) ... ok
[INFO] [stdout] test src/lib.rs - (line 36) ... ok
[INFO] [stdout] test src/board/mod.rs - board::Board::get_cell (line 32) ... ok
[INFO] [stdout] test src/solver/mod.rs - solver::SolutionIter::new (line 247) ... ok
[INFO] [stdout] test src/lib.rs - (line 10) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 3.52s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "da445f7a016c99dcab1b26fb21b0dafb982c6befc031a7ae1b045dd5b8dacd26", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da445f7a016c99dcab1b26fb21b0dafb982c6befc031a7ae1b045dd5b8dacd26", kill_on_drop: false }`
[INFO] [stdout] da445f7a016c99dcab1b26fb21b0dafb982c6befc031a7ae1b045dd5b8dacd26