[INFO] cloning repository https://github.com/Perondas/sudoku_solver
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Perondas/sudoku_solver" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPerondas%2Fsudoku_solver", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPerondas%2Fsudoku_solver'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a83f1f12ec1bff5a321e92785563fbfeb44667bb
[INFO] testing Perondas/sudoku_solver 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%2FPerondas%2Fsudoku_solver" "/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/Perondas/sudoku_solver 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/Perondas/sudoku_solver
[INFO] finished tweaking git repo https://github.com/Perondas/sudoku_solver
[INFO] tweaked toml for git repo https://github.com/Perondas/sudoku_solver written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/Perondas/sudoku_solver 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] a1ee6b4c20db5f619752f49ec7702272e07fa168584f9c1b4dbbbb49f6025fd9
[INFO] running `Command { std: "docker" "start" "-a" "a1ee6b4c20db5f619752f49ec7702272e07fa168584f9c1b4dbbbb49f6025fd9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a1ee6b4c20db5f619752f49ec7702272e07fa168584f9c1b4dbbbb49f6025fd9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a1ee6b4c20db5f619752f49ec7702272e07fa168584f9c1b4dbbbb49f6025fd9", kill_on_drop: false }`
[INFO] [stdout] a1ee6b4c20db5f619752f49ec7702272e07fa168584f9c1b4dbbbb49f6025fd9
[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] [stdout] 3dfc468385d83213b2b7cc868cd029a4b200e350ed41dd9831b4d1a576764651
[INFO] running `Command { std: "docker" "start" "-a" "3dfc468385d83213b2b7cc868cd029a4b200e350ed41dd9831b4d1a576764651", kill_on_drop: false }`
[INFO] [stderr]    Compiling sudoku_solver v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]  --> src/sudoku/sudoku_board.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 |     pub fn new() -> SudokuBoard{
[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 1.62s
[INFO] running `Command { std: "docker" "inspect" "3dfc468385d83213b2b7cc868cd029a4b200e350ed41dd9831b4d1a576764651", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3dfc468385d83213b2b7cc868cd029a4b200e350ed41dd9831b4d1a576764651", kill_on_drop: false }`
[INFO] [stdout] 3dfc468385d83213b2b7cc868cd029a4b200e350ed41dd9831b4d1a576764651
[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] [stdout] 863ea7daba3f2bf642f4defa283b7e0d3f3d6f02e0332bc1d91e0f345d570382
[INFO] running `Command { std: "docker" "start" "-a" "863ea7daba3f2bf642f4defa283b7e0d3f3d6f02e0332bc1d91e0f345d570382", kill_on_drop: false }`
[INFO] [stderr]    Compiling sudoku_solver v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]  --> src/sudoku/sudoku_board.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 |     pub fn new() -> SudokuBoard{
[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 test [unoptimized + debuginfo] target(s) in 0.71s
[INFO] running `Command { std: "docker" "inspect" "863ea7daba3f2bf642f4defa283b7e0d3f3d6f02e0332bc1d91e0f345d570382", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "863ea7daba3f2bf642f4defa283b7e0d3f3d6f02e0332bc1d91e0f345d570382", kill_on_drop: false }`
[INFO] [stdout] 863ea7daba3f2bf642f4defa283b7e0d3f3d6f02e0332bc1d91e0f345d570382
[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] 1b36b950856f7881dc96b164cf41fb44b9c42f26e78f7fe91c2deb9cbfc1f9d5
[INFO] running `Command { std: "docker" "start" "-a" "1b36b950856f7881dc96b164cf41fb44b9c42f26e78f7fe91c2deb9cbfc1f9d5", kill_on_drop: false }`
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]  --> src/sudoku/sudoku_board.rs:6:12
[INFO] [stderr]   |
[INFO] [stderr] 6 |     pub fn new() -> SudokuBoard{
[INFO] [stderr]   |            ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `sudoku_solver` (bin "sudoku_solver" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/sudoku_solver-dfb32ca57caf1a6d)
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "1b36b950856f7881dc96b164cf41fb44b9c42f26e78f7fe91c2deb9cbfc1f9d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1b36b950856f7881dc96b164cf41fb44b9c42f26e78f7fe91c2deb9cbfc1f9d5", kill_on_drop: false }`
[INFO] [stdout] 1b36b950856f7881dc96b164cf41fb44b9c42f26e78f7fe91c2deb9cbfc1f9d5