[INFO] cloning repository https://github.com/nagarkamakshi/Rust-Sudoku
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nagarkamakshi/Rust-Sudoku" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnagarkamakshi%2FRust-Sudoku", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnagarkamakshi%2FRust-Sudoku'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 04f175fa57a7c28ee65a9e847f58177f129c7348
[INFO] testing nagarkamakshi/Rust-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%2Fnagarkamakshi%2FRust-Sudoku" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nagarkamakshi/Rust-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/nagarkamakshi/Rust-Sudoku
[INFO] finished tweaking git repo https://github.com/nagarkamakshi/Rust-Sudoku
[INFO] tweaked toml for git repo https://github.com/nagarkamakshi/Rust-Sudoku written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/nagarkamakshi/Rust-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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pistoncore-window v0.38.0
[INFO] [stderr]   Downloaded pistoncore-glutin_window v0.55.0
[INFO] [stderr]   Downloaded piston v0.43.0
[INFO] [stderr]   Downloaded image v0.21.1
[INFO] [stderr]   Downloaded pistoncore-event_loop v0.43.0
[INFO] [stderr]   Downloaded pistoncore-input v0.25.0
[INFO] [stderr]   Downloaded piston2d-opengl_graphics v0.62.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 049d3e9be052b2f21027042a1574b4253823669f4fa8006d38c8b2811afa2d7e
[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" "049d3e9be052b2f21027042a1574b4253823669f4fa8006d38c8b2811afa2d7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "049d3e9be052b2f21027042a1574b4253823669f4fa8006d38c8b2811afa2d7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "049d3e9be052b2f21027042a1574b4253823669f4fa8006d38c8b2811afa2d7e", kill_on_drop: false }`
[INFO] [stdout] 049d3e9be052b2f21027042a1574b4253823669f4fa8006d38c8b2811afa2d7e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] acbbe39dd43ce2cfbb3fe057ec901f23321c58cb0c189277870c6a2b2e457776
[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" "acbbe39dd43ce2cfbb3fe057ec901f23321c58cb0c189277870c6a2b2e457776", kill_on_drop: false }`
[INFO] [stderr]    Compiling libloading v0.5.0
[INFO] [stderr]    Compiling gif v0.10.1
[INFO] [stderr]    Compiling gl_generator v0.10.0
[INFO] [stderr]    Compiling nix v0.13.0
[INFO] [stderr]    Compiling num_cpus v1.10.0
[INFO] [stderr]    Compiling memmap v0.7.0
[INFO] [stderr]    Compiling shared_library v0.1.9
[INFO] [stderr]    Compiling atty v0.2.11
[INFO] [stderr]    Compiling approx v0.3.2
[INFO] [stderr]    Compiling x11-dl v2.18.3
[INFO] [stderr]    Compiling serde_derive v1.0.91
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]    Compiling parking_lot_core v0.4.0
[INFO] [stderr]    Compiling png v0.14.1
[INFO] [stderr]    Compiling rayon-core v1.4.1
[INFO] [stderr]    Compiling rusttype v0.7.6
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling osmesa-sys v0.1.2
[INFO] [stderr]    Compiling parking_lot v0.7.1
[INFO] [stderr]    Compiling rayon v1.0.3
[INFO] [stderr]    Compiling andrew v0.2.1
[INFO] [stderr]    Compiling piston2d-graphics v0.32.0
[INFO] [stderr]    Compiling dlib v0.4.1
[INFO] [stderr]    Compiling wayland-sys v0.21.12
[INFO] [stderr]    Compiling gl v0.11.0
[INFO] [stderr]    Compiling glutin v0.19.0
[INFO] [stderr]    Compiling jpeg-decoder v0.1.15
[INFO] [stderr]    Compiling wayland-commons v0.21.12
[INFO] [stderr]    Compiling tiff v0.2.2
[INFO] [stderr]    Compiling wayland-client v0.21.12
[INFO] [stderr]    Compiling image v0.21.1
[INFO] [stderr]    Compiling wayland-protocols v0.21.12
[INFO] [stderr]    Compiling pistoncore-input v0.25.0
[INFO] [stderr]    Compiling piston2d-opengl_graphics v0.62.0
[INFO] [stderr]    Compiling pistoncore-window v0.38.0
[INFO] [stderr]    Compiling smithay-client-toolkit v0.4.5
[INFO] [stderr]    Compiling pistoncore-event_loop v0.43.0
[INFO] [stderr]    Compiling piston v0.43.0
[INFO] [stderr]    Compiling winit v0.18.1
[INFO] [stderr]    Compiling pistoncore-glutin_window v0.55.0
[INFO] [stderr]    Compiling sudoku v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 45.18s
[INFO] running `Command { std: "docker" "inspect" "acbbe39dd43ce2cfbb3fe057ec901f23321c58cb0c189277870c6a2b2e457776", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "acbbe39dd43ce2cfbb3fe057ec901f23321c58cb0c189277870c6a2b2e457776", kill_on_drop: false }`
[INFO] [stdout] acbbe39dd43ce2cfbb3fe057ec901f23321c58cb0c189277870c6a2b2e457776
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 1e4c1865eb3d36d3658b937f3d0ab150e13a22dbb8e0a7f3052a32209448e2f3
[INFO] running `Command { std: "docker" "start" "-a" "1e4c1865eb3d36d3658b937f3d0ab150e13a22dbb8e0a7f3052a32209448e2f3", kill_on_drop: false }`
[INFO] [stderr]    Compiling sudoku v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `test_MorethanOne_Solution` should have a snake case name
[INFO] [stdout]   --> src/main.rs:67:4
[INFO] [stdout]    |
[INFO] [stdout] 67 | fn test_MorethanOne_Solution() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `test_morethan_one_solution`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` 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 2.82s
[INFO] running `Command { std: "docker" "inspect" "1e4c1865eb3d36d3658b937f3d0ab150e13a22dbb8e0a7f3052a32209448e2f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e4c1865eb3d36d3658b937f3d0ab150e13a22dbb8e0a7f3052a32209448e2f3", kill_on_drop: false }`
[INFO] [stdout] 1e4c1865eb3d36d3658b937f3d0ab150e13a22dbb8e0a7f3052a32209448e2f3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] c457c3f658e2a8d5884b0dd97e2a2951889425d80935292d67df4812708456e2
[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" "c457c3f658e2a8d5884b0dd97e2a2951889425d80935292d67df4812708456e2", kill_on_drop: false }`
[INFO] [stderr] warning: function `test_MorethanOne_Solution` should have a snake case name
[INFO] [stderr]   --> src/main.rs:67:4
[INFO] [stderr]    |
[INFO] [stderr] 67 | fn test_MorethanOne_Solution() {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `test_morethan_one_solution`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `sudoku` (bin "sudoku" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.19s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/sudoku-dbfed69bfebd4807)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test test_check_safe ... ok
[INFO] [stdout] test test_MorethanOne_Solution ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "c457c3f658e2a8d5884b0dd97e2a2951889425d80935292d67df4812708456e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c457c3f658e2a8d5884b0dd97e2a2951889425d80935292d67df4812708456e2", kill_on_drop: false }`
[INFO] [stdout] c457c3f658e2a8d5884b0dd97e2a2951889425d80935292d67df4812708456e2