[INFO] fetching crate sudoku_solver_by_roy 0.1.0...
[INFO] testing sudoku_solver_by_roy-0.1.0 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate sudoku_solver_by_roy 0.1.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate sudoku_solver_by_roy 0.1.0
[INFO] finished tweaking crates.io crate sudoku_solver_by_roy 0.1.0
[INFO] tweaked toml for crates.io crate sudoku_solver_by_roy 0.1.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate sudoku_solver_by_roy 0.1.0 on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate sudoku_solver_by_roy 0.1.0 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" "+beta-2026-04-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 16682fd59d9b038208b7a88f352674b0e59766bea5fd00ac02b6ce817eb1bbf2
[INFO] running `Command { std: "docker" "start" "-a" "16682fd59d9b038208b7a88f352674b0e59766bea5fd00ac02b6ce817eb1bbf2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "16682fd59d9b038208b7a88f352674b0e59766bea5fd00ac02b6ce817eb1bbf2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "16682fd59d9b038208b7a88f352674b0e59766bea5fd00ac02b6ce817eb1bbf2", kill_on_drop: false }`
[INFO] [stdout] 16682fd59d9b038208b7a88f352674b0e59766bea5fd00ac02b6ce817eb1bbf2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=warn" "-e" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4cd74e210993e03675e9c6bcc37ee7cf762824fb5bcb5318b0c87df560c2ec64
[INFO] running `Command { std: "docker" "start" "-a" "4cd74e210993e03675e9c6bcc37ee7cf762824fb5bcb5318b0c87df560c2ec64", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.69
[INFO] [stderr]    Compiling utf8parse v0.2.1
[INFO] [stderr]    Compiling serde v1.0.190
[INFO] [stderr]    Compiling anstyle v1.0.4
[INFO] [stderr]    Compiling colorchoice v1.0.0
[INFO] [stderr]    Compiling anstyle-query v1.0.0
[INFO] [stderr]    Compiling heck v0.4.1
[INFO] [stderr]    Compiling clap_lex v0.6.0
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling anstyle-parse v0.2.2
[INFO] [stderr]    Compiling memchr v2.6.4
[INFO] [stderr]    Compiling itoa v1.0.9
[INFO] [stderr]    Compiling anstream v0.6.4
[INFO] [stderr]    Compiling clap_builder v4.4.7
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling csv-core v0.1.11
[INFO] [stderr]    Compiling syn v2.0.38
[INFO] [stderr]    Compiling csv v1.3.0
[INFO] [stderr]    Compiling clap_derive v4.4.7
[INFO] [stderr]    Compiling clap v4.4.7
[INFO] [stderr]    Compiling sudoku_solver_by_roy v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 20.01s
[INFO] running `Command { std: "docker" "inspect" "4cd74e210993e03675e9c6bcc37ee7cf762824fb5bcb5318b0c87df560c2ec64", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4cd74e210993e03675e9c6bcc37ee7cf762824fb5bcb5318b0c87df560c2ec64", kill_on_drop: false }`
[INFO] [stdout] 4cd74e210993e03675e9c6bcc37ee7cf762824fb5bcb5318b0c87df560c2ec64
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=warn" "-e" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 77a33561681d3fffa3b44763b2990919734b8e7d80f3c8cc23b682b50ddb5083
[INFO] running `Command { std: "docker" "start" "-a" "77a33561681d3fffa3b44763b2990919734b8e7d80f3c8cc23b682b50ddb5083", kill_on_drop: false }`
[INFO] [stderr]    Compiling sudoku_solver_by_roy v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.14s
[INFO] running `Command { std: "docker" "inspect" "77a33561681d3fffa3b44763b2990919734b8e7d80f3c8cc23b682b50ddb5083", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "77a33561681d3fffa3b44763b2990919734b8e7d80f3c8cc23b682b50ddb5083", kill_on_drop: false }`
[INFO] [stdout] 77a33561681d3fffa3b44763b2990919734b8e7d80f3c8cc23b682b50ddb5083
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=warn" "-e" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b4e4a181c4dff8ffa5c9e7dcad7c255972292612a6adb906c699fd9ee3c27da5
[INFO] running `Command { std: "docker" "start" "-a" "b4e4a181c4dff8ffa5c9e7dcad7c255972292612a6adb906c699fd9ee3c27da5", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/sudoku_solver_by_roy-48184e8860c1e134)
[INFO] [stdout] 
[INFO] [stdout] running 13 tests
[INFO] [stdout] test board::tests::test_complete ... ok
[INFO] [stdout] test board::tests::test_get_cell ... ok
[INFO] [stdout] test board::tests::test_get_column ... ok
[INFO] [stdout] test board::tests::test_get_row ... ok
[INFO] [stdout] test board::tests::test_get_subgrid ... ok
[INFO] [stdout] test board::tests::test_valid_board ... ok
[INFO] [stdout] test board::tests::test_valid_entry ... ok
[INFO] [stdout] test io::tests::test_invalid_8_lines ... ok
[INFO] [stdout] test io::tests::test_invalid_sudoku ... ok
[INFO] [stdout] test io::tests::test_invalid_column ... ok
[INFO] [stdout] test io::tests::test_invalid_non_int ... ok
[INFO] [stdout] test io::tests::test_from_csv ... ok
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/sudoku_solver_by_roy-5a5564bd1c54b828)
[INFO] [stdout] test board::tests::test_solve_mut ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 13 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.06s
[INFO] [stdout] 
[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] [stderr]      Running tests/integration_tests.rs (/opt/rustwide/target/debug/deps/integration_tests-c1156491c3235a49)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test_pass ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests sudoku_solver_by_roy
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/board.rs - board::Board::new (line 20) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.12s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b4e4a181c4dff8ffa5c9e7dcad7c255972292612a6adb906c699fd9ee3c27da5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4e4a181c4dff8ffa5c9e7dcad7c255972292612a6adb906c699fd9ee3c27da5", kill_on_drop: false }`
[INFO] [stdout] b4e4a181c4dff8ffa5c9e7dcad7c255972292612a6adb906c699fd9ee3c27da5
