[INFO] cloning repository https://github.com/mattmoor/sudoku
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mattmoor/sudoku" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmattmoor%2Fsudoku", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmattmoor%2Fsudoku'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2f11cb91258a930cdff6c253827e4e32727ce839
[INFO] testing mattmoor/sudoku against beta-2021-09-08 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmattmoor%2Fsudoku" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mattmoor/sudoku on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mattmoor/sudoku
[INFO] finished tweaking git repo https://github.com/mattmoor/sudoku
[INFO] tweaked toml for git repo https://github.com/mattmoor/sudoku written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/mattmoor/sudoku already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ac83c851b6992494237fad7853e776f1293a43d1b52069fec89f26967f9f091e
[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" "ac83c851b6992494237fad7853e776f1293a43d1b52069fec89f26967f9f091e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ac83c851b6992494237fad7853e776f1293a43d1b52069fec89f26967f9f091e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac83c851b6992494237fad7853e776f1293a43d1b52069fec89f26967f9f091e", kill_on_drop: false }`
[INFO] [stdout] ac83c851b6992494237fad7853e776f1293a43d1b52069fec89f26967f9f091e
[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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "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] 99b69fc6a0c4e2bd7475a67570717b44a797604b424404591166806b475732c6
[INFO] running `Command { std: "docker" "start" "-a" "99b69fc6a0c4e2bd7475a67570717b44a797604b424404591166806b475732c6", kill_on_drop: false }`
[INFO] [stderr]    Compiling sudoku v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `union`
[INFO] [stdout]   --> src/game/bitset.rs:66:12
[INFO] [stdout]    |
[INFO] [stdout] 66 |     pub fn union(&self, other: BitSet) -> BitSet {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.37s
[INFO] running `Command { std: "docker" "inspect" "99b69fc6a0c4e2bd7475a67570717b44a797604b424404591166806b475732c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "99b69fc6a0c4e2bd7475a67570717b44a797604b424404591166806b475732c6", kill_on_drop: false }`
[INFO] [stdout] 99b69fc6a0c4e2bd7475a67570717b44a797604b424404591166806b475732c6
[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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--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] f5c20b601a743d72cfc88a77d9b4bf59a471162f880637b576fa9af776102a53
[INFO] running `Command { std: "docker" "start" "-a" "f5c20b601a743d72cfc88a77d9b4bf59a471162f880637b576fa9af776102a53", kill_on_drop: false }`
[INFO] [stderr]    Compiling sudoku v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.93s
[INFO] running `Command { std: "docker" "inspect" "f5c20b601a743d72cfc88a77d9b4bf59a471162f880637b576fa9af776102a53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f5c20b601a743d72cfc88a77d9b4bf59a471162f880637b576fa9af776102a53", kill_on_drop: false }`
[INFO] [stdout] f5c20b601a743d72cfc88a77d9b4bf59a471162f880637b576fa9af776102a53
[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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] acb5225ad9964dd1b6a0c2d11e1797a59f8c4289ce083e932ffa5ccfd6c8a4a0
[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" "acb5225ad9964dd1b6a0c2d11e1797a59f8c4289ce083e932ffa5ccfd6c8a4a0", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/sudoku-b3b74df0d05e22f7)
[INFO] [stdout] running 17 tests
[INFO] [stdout] test game::bitset::tests::test_count ... ok
[INFO] [stdout] test game::bitset::tests::test_foreach ... ok
[INFO] [stdout] test game::bitset::tests::test_singleton ... ok
[INFO] [stdout] test game::bitset::tests::test_has ... ok
[INFO] [stdout] test game::bitset::tests::test_intersect ... ok
[INFO] [stdout] test game::tests::check_bad_board ... ok
[INFO] [stdout] test game::tests::check_equality ... ok
[INFO] [stdout] test game::tests::check_iterators ... ok
[INFO] [stdout] test game::tests::check_solve_fails ... ok
[INFO] [stdout] test game::tests::check_parse ... ok
[INFO] [stdout] test game::tests::check_solve_super_easy ... ok
[INFO] [stdout] test game::bitset::tests::test_union ... ok
[INFO] [stdout] test game::bitset::tests::test_iterating_alternating ... ok
[INFO] [stdout] test game::bitset::tests::test_empty ... ok
[INFO] [stdout] test game::bitset::tests::test_formatting ... ok
[INFO] [stdout] test game::tests::check_solve_super_hard ... ok
[INFO] [stdout] test game::tests::check_solve_hardest ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 17 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.18s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "acb5225ad9964dd1b6a0c2d11e1797a59f8c4289ce083e932ffa5ccfd6c8a4a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "acb5225ad9964dd1b6a0c2d11e1797a59f8c4289ce083e932ffa5ccfd6c8a4a0", kill_on_drop: false }`
[INFO] [stdout] acb5225ad9964dd1b6a0c2d11e1797a59f8c4289ce083e932ffa5ccfd6c8a4a0