[INFO] cloning repository https://github.com/Zheoni/sudoku
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Zheoni/sudoku" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FZheoni%2Fsudoku", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FZheoni%2Fsudoku'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3295e1a833e24f62f039eb33cff7f4d8e5009942
[INFO] testing Zheoni/sudoku against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FZheoni%2Fsudoku" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Zheoni/sudoku on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Zheoni/sudoku
[INFO] finished tweaking git repo https://github.com/Zheoni/sudoku
[INFO] tweaked toml for git repo https://github.com/Zheoni/sudoku written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/Zheoni/sudoku already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "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] 5376e198bb1bf93894ca1f5414b52ab38c66d2f2d58288d21c38e99541f09511
[INFO] running `Command { std: "docker" "start" "-a" "5376e198bb1bf93894ca1f5414b52ab38c66d2f2d58288d21c38e99541f09511", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5376e198bb1bf93894ca1f5414b52ab38c66d2f2d58288d21c38e99541f09511", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5376e198bb1bf93894ca1f5414b52ab38c66d2f2d58288d21c38e99541f09511", kill_on_drop: false }`
[INFO] [stdout] 5376e198bb1bf93894ca1f5414b52ab38c66d2f2d58288d21c38e99541f09511
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "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] d947230819f1ed92dd4bef5860299eb25d4650e5d2cf1e830ab08fc3596b5cbf
[INFO] running `Command { std: "docker" "start" "-a" "d947230819f1ed92dd4bef5860299eb25d4650e5d2cf1e830ab08fc3596b5cbf", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.88
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling rand_core v0.6.2
[INFO] [stderr]    Compiling rand_chacha v0.3.0
[INFO] [stderr]    Compiling rand_pcg v0.3.0
[INFO] [stderr]    Compiling rand_seeder v0.2.2
[INFO] [stderr]    Compiling rand v0.8.3
[INFO] [stderr]    Compiling sudoku v1.0.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.43s
[INFO] running `Command { std: "docker" "inspect" "d947230819f1ed92dd4bef5860299eb25d4650e5d2cf1e830ab08fc3596b5cbf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d947230819f1ed92dd4bef5860299eb25d4650e5d2cf1e830ab08fc3596b5cbf", kill_on_drop: false }`
[INFO] [stdout] d947230819f1ed92dd4bef5860299eb25d4650e5d2cf1e830ab08fc3596b5cbf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 030db28f32a8eb9017220618461f402d60b3bab709f8887eab4eba5ca1a5d15f
[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" "030db28f32a8eb9017220618461f402d60b3bab709f8887eab4eba5ca1a5d15f", kill_on_drop: false }`
[INFO] [stderr]    Compiling sudoku v1.0.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.89s
[INFO] running `Command { std: "docker" "inspect" "030db28f32a8eb9017220618461f402d60b3bab709f8887eab4eba5ca1a5d15f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "030db28f32a8eb9017220618461f402d60b3bab709f8887eab4eba5ca1a5d15f", kill_on_drop: false }`
[INFO] [stdout] 030db28f32a8eb9017220618461f402d60b3bab709f8887eab4eba5ca1a5d15f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 274ad77b1e75f6f0b883f84fc9839fa9f4fdf8b9ff5d2b12809e582c1c1b273d
[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" "274ad77b1e75f6f0b883f84fc9839fa9f4fdf8b9ff5d2b12809e582c1c1b273d", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stdout] running 15 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/sudoku-715d859b7405262f)
[INFO] [stdout] test board::tests::line_string ... ok
[INFO] [stdout] test board::tests::line_string_zeroes ... ok
[INFO] [stdout] test pos_util::tests::test_col ... ok
[INFO] [stdout] test pos_util::tests::test_group ... ok
[INFO] [stdout] test puzzle::tests::generator_difficulty_and_difficulty ... ok
[INFO] [stdout] test pos_util::tests::test_row ... ok
[INFO] [stdout] test board::tests::count_more ... ok
[INFO] [stdout] test pos_util::tests::test_adjacent ... ok
[INFO] [stdout] test board::tests::solve_all_more ... ok
[INFO] [stdout] test puzzle::tests::all_difficulties_strings ... ok
[INFO] [stdout] test board::tests::solve_all_1 ... ok
[INFO] [stdout] test board::tests::solve_1 ... ok
[INFO] [stdout] test board::tests::count_1 ... ok
[INFO] [stdout] test board::tests::generate ... ok
[INFO] [stdout] test puzzle::tests::same_board_with_seed ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 15 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.26s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/sudoku-2ef3247035aa3181)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests sudoku
[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 4 tests
[INFO] [stdout] test src/lib.rs - (line 11) ... ok
[INFO] [stdout] test src/puzzle.rs - puzzle::SudokuPuzzle (line 24) ... ok
[INFO] [stdout] test src/lib.rs - (line 26) ... ok
[INFO] [stdout] test src/board.rs - board::SudokuBoard (line 20) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.11s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "274ad77b1e75f6f0b883f84fc9839fa9f4fdf8b9ff5d2b12809e582c1c1b273d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "274ad77b1e75f6f0b883f84fc9839fa9f4fdf8b9ff5d2b12809e582c1c1b273d", kill_on_drop: false }`
[INFO] [stdout] 274ad77b1e75f6f0b883f84fc9839fa9f4fdf8b9ff5d2b12809e582c1c1b273d