[INFO] cloning repository https://github.com/pixelshot91/sudoku-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pixelshot91/sudoku-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpixelshot91%2Fsudoku-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpixelshot91%2Fsudoku-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7f03b72eb9019387a48293c4c81b5a8780b78ecf
[INFO] checking pixelshot91/sudoku-rs against try#7df376b035b3d12ff0386ad8b45b76dbe020257b for pr-142712
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpixelshot91%2Fsudoku-rs" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/pixelshot91/sudoku-rs
[INFO] finished tweaking git repo https://github.com/pixelshot91/sudoku-rs
[INFO] tweaked toml for git repo https://github.com/pixelshot91/sudoku-rs written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/pixelshot91/sudoku-rs on toolchain 7df376b035b3d12ff0386ad8b45b76dbe020257b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7df376b035b3d12ff0386ad8b45b76dbe020257b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/pixelshot91/sudoku-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7df376b035b3d12ff0386ad8b45b76dbe020257b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+7df376b035b3d12ff0386ad8b45b76dbe020257b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3e9eade307a17b85bded5f1f8f7278482ab1bf147712d8854f881fd81e58414b
[INFO] running `Command { std: "docker" "start" "-a" "3e9eade307a17b85bded5f1f8f7278482ab1bf147712d8854f881fd81e58414b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3e9eade307a17b85bded5f1f8f7278482ab1bf147712d8854f881fd81e58414b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e9eade307a17b85bded5f1f8f7278482ab1bf147712d8854f881fd81e58414b", kill_on_drop: false }`
[INFO] [stdout] 3e9eade307a17b85bded5f1f8f7278482ab1bf147712d8854f881fd81e58414b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+7df376b035b3d12ff0386ad8b45b76dbe020257b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 84c961e8d7d7e28d0625c0b9901b105b9a755fed148723e383f3e5742106ecd3
[INFO] running `Command { std: "docker" "start" "-a" "84c961e8d7d7e28d0625c0b9901b105b9a755fed148723e383f3e5742106ecd3", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling rustversion v1.0.17
[INFO] [stderr]    Compiling heck v0.5.0
[INFO] [stderr]     Checking either v1.13.0
[INFO] [stderr]     Checking itertools v0.13.0
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling syn v2.0.68
[INFO] [stderr]    Compiling strum_macros v0.26.4
[INFO] [stderr]     Checking strum v0.26.3
[INFO] [stderr]     Checking sudoku-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `strum::IntoEnumIterator`
[INFO] [stdout]    --> src/main.rs:421:9
[INFO] [stdout]     |
[INFO] [stdout] 421 |     use strum::IntoEnumIterator;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]    --> src/main.rs:412:5
[INFO] [stdout]     |
[INFO] [stdout] 404 | /     loop {
[INFO] [stdout] 405 | |         assert!(solver.make_progress());
[INFO] [stdout] 406 | |
[INFO] [stdout] 407 | |         println!("{}", solver.psg);
[INFO] [stdout] 408 | |
[INFO] [stdout] 409 | |         std::io::stdin().read(&mut [0u8]).unwrap();
[INFO] [stdout] 410 | |     }
[INFO] [stdout]     | |_____- any code following this expression is unreachable
[INFO] [stdout] 411 |
[INFO] [stdout] 412 |       return;
[INFO] [stdout]     |       ^^^^^^^ unreachable statement
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]    --> src/main.rs:412:5
[INFO] [stdout]     |
[INFO] [stdout] 404 | /     loop {
[INFO] [stdout] 405 | |         assert!(solver.make_progress());
[INFO] [stdout] 406 | |
[INFO] [stdout] 407 | |         println!("{}", solver.psg);
[INFO] [stdout] 408 | |
[INFO] [stdout] 409 | |         std::io::stdin().read(&mut [0u8]).unwrap();
[INFO] [stdout] 410 | |     }
[INFO] [stdout]     | |_____- any code following this expression is unreachable
[INFO] [stdout] 411 |
[INFO] [stdout] 412 |       return;
[INFO] [stdout]     |       ^^^^^^^ unreachable statement
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.72s
[INFO] running `Command { std: "docker" "inspect" "84c961e8d7d7e28d0625c0b9901b105b9a755fed148723e383f3e5742106ecd3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "84c961e8d7d7e28d0625c0b9901b105b9a755fed148723e383f3e5742106ecd3", kill_on_drop: false }`
[INFO] [stdout] 84c961e8d7d7e28d0625c0b9901b105b9a755fed148723e383f3e5742106ecd3