[INFO] cloning repository https://github.com/magicant/sudoku-solver-in-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/magicant/sudoku-solver-in-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmagicant%2Fsudoku-solver-in-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmagicant%2Fsudoku-solver-in-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4abdeb28ad995c9e39e5a0f3c1d6a88c09cd54dc
[INFO] testing magicant/sudoku-solver-in-rust against 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmagicant%2Fsudoku-solver-in-rust" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/magicant/sudoku-solver-in-rust on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/magicant/sudoku-solver-in-rust
[INFO] finished tweaking git repo https://github.com/magicant/sudoku-solver-in-rust
[INFO] tweaked toml for git repo https://github.com/magicant/sudoku-solver-in-rust written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/magicant/sudoku-solver-in-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 064784cdc8b5c03e4787040f1acddf43df898402b6c8e1098627abbbe73c4d59
[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" "064784cdc8b5c03e4787040f1acddf43df898402b6c8e1098627abbbe73c4d59", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "064784cdc8b5c03e4787040f1acddf43df898402b6c8e1098627abbbe73c4d59", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "064784cdc8b5c03e4787040f1acddf43df898402b6c8e1098627abbbe73c4d59", kill_on_drop: false }`
[INFO] [stdout] 064784cdc8b5c03e4787040f1acddf43df898402b6c8e1098627abbbe73c4d59
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "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] 3ce3a0715c4c1e556efbab49c74ed33e4130d2d23c94e78a71defe3ecd629771
[INFO] running `Command { std: "docker" "start" "-a" "3ce3a0715c4c1e556efbab49c74ed33e4130d2d23c94e78a71defe3ecd629771", kill_on_drop: false }`
[INFO] [stderr]    Compiling sudoku-solver-in-rust v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.29s
[INFO] running `Command { std: "docker" "inspect" "3ce3a0715c4c1e556efbab49c74ed33e4130d2d23c94e78a71defe3ecd629771", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ce3a0715c4c1e556efbab49c74ed33e4130d2d23c94e78a71defe3ecd629771", kill_on_drop: false }`
[INFO] [stdout] 3ce3a0715c4c1e556efbab49c74ed33e4130d2d23c94e78a71defe3ecd629771
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ea88e6578b27578d1e29b9527afa29de9f98480d880fa86d218b536b39fad1ae
[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" "ea88e6578b27578d1e29b9527afa29de9f98480d880fa86d218b536b39fad1ae", kill_on_drop: false }`
[INFO] [stderr]    Compiling sudoku-solver-in-rust v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.51s
[INFO] running `Command { std: "docker" "inspect" "ea88e6578b27578d1e29b9527afa29de9f98480d880fa86d218b536b39fad1ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea88e6578b27578d1e29b9527afa29de9f98480d880fa86d218b536b39fad1ae", kill_on_drop: false }`
[INFO] [stdout] ea88e6578b27578d1e29b9527afa29de9f98480d880fa86d218b536b39fad1ae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 296320a95990d4c6d740410f86acc7eebf030857f9a2346b1685b9d202a52f64
[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" "296320a95990d4c6d740410f86acc7eebf030857f9a2346b1685b9d202a52f64", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/sudoku_solver_in_rust-79b51bf75b7412e7
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test board::tests::block_iter_values ... ok
[INFO] [stdout] test board::tests::row_iter_values ... ok
[INFO] [stdout] test board::tests::solving_cell_iter ... ok
[INFO] [stdout] test board::tests::solving_cell_new_none ... ok
[INFO] [stdout] test board::tests::solving_cell_new_some ... ok
[INFO] [stdout] test board::tests::solving_cell_get_unique ... ok
[INFO] [stdout] test board::tests::col_iter_values ... ok
[INFO] [stdout] test board::tests::solving_cell_acknowledge ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "296320a95990d4c6d740410f86acc7eebf030857f9a2346b1685b9d202a52f64", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "296320a95990d4c6d740410f86acc7eebf030857f9a2346b1685b9d202a52f64", kill_on_drop: false }`
[INFO] [stdout] 296320a95990d4c6d740410f86acc7eebf030857f9a2346b1685b9d202a52f64