[INFO] fetching crate sudoku 0.8.0... [INFO] testing sudoku-0.8.0 against master#cdb45c87e2cd43495379f7e867e3cc15dcee9f93 for pr-145838-1 [INFO] extracting crate sudoku 0.8.0 into /workspace/builds/worker-6-tc1/source [INFO] started tweaking crates.io crate sudoku 0.8.0 [INFO] finished tweaking crates.io crate sudoku 0.8.0 [INFO] tweaked toml for crates.io crate sudoku 0.8.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate sudoku 0.8.0 on toolchain cdb45c87e2cd43495379f7e867e3cc15dcee9f93 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate crates.io crate sudoku 0.8.0 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" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 3b9d6144cdf56fe56579fc8ff4ad27d8cdc2bda708c505e3951680bf82a33391 [INFO] running `Command { std: "docker" "start" "-a" "3b9d6144cdf56fe56579fc8ff4ad27d8cdc2bda708c505e3951680bf82a33391", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "3b9d6144cdf56fe56579fc8ff4ad27d8cdc2bda708c505e3951680bf82a33391", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3b9d6144cdf56fe56579fc8ff4ad27d8cdc2bda708c505e3951680bf82a33391", kill_on_drop: false }` [INFO] [stdout] 3b9d6144cdf56fe56579fc8ff4ad27d8cdc2bda708c505e3951680bf82a33391 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 733e34f057fae91c7b3685cebffcccc1ae62080fecd53d680f7e38afac38fd8b [INFO] running `Command { std: "docker" "start" "-a" "733e34f057fae91c7b3685cebffcccc1ae62080fecd53d680f7e38afac38fd8b", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.70 [INFO] [stderr] Compiling libc v0.2.150 [INFO] [stderr] Compiling crunchy v0.2.2 [INFO] [stderr] Compiling quote v1.0.33 [INFO] [stderr] Compiling getrandom v0.2.11 [INFO] [stderr] Compiling syn v2.0.39 [INFO] [stderr] Compiling rand_core v0.6.4 [INFO] [stderr] Compiling rand_chacha v0.3.1 [INFO] [stderr] Compiling rand v0.8.5 [INFO] [stderr] Compiling thiserror-impl v1.0.50 [INFO] [stderr] Compiling thiserror v1.0.50 [INFO] [stderr] Compiling sudoku v0.8.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: struct `GridState` is never constructed [INFO] [stdout] --> src/board/grid_state.rs:4:12 [INFO] [stdout] | [INFO] [stdout] 4 | pub struct GridState([CellState; 81]); [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/board/sudoku.rs:728:17 [INFO] [stdout] | [INFO] [stdout] 728 | pub fn iter(&self) -> Iter { [INFO] [stdout] | ^^^^^ ^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 728 | pub fn iter(&self) -> Iter<'_> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.02s [INFO] running `Command { std: "docker" "inspect" "733e34f057fae91c7b3685cebffcccc1ae62080fecd53d680f7e38afac38fd8b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "733e34f057fae91c7b3685cebffcccc1ae62080fecd53d680f7e38afac38fd8b", kill_on_drop: false }` [INFO] [stdout] 733e34f057fae91c7b3685cebffcccc1ae62080fecd53d680f7e38afac38fd8b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 551e6bcf6159316318281899201a50719e98c8d603869b6554177b1339d7d0cb [INFO] running `Command { std: "docker" "start" "-a" "551e6bcf6159316318281899201a50719e98c8d603869b6554177b1339d7d0cb", kill_on_drop: false }` [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Compiling unicode-segmentation v1.10.1 [INFO] [stderr] Compiling strum v0.19.5 [INFO] [stdout] warning: struct `GridState` is never constructed [INFO] [stdout] --> src/board/grid_state.rs:4:12 [INFO] [stdout] | [INFO] [stdout] 4 | pub struct GridState([CellState; 81]); [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/board/sudoku.rs:728:17 [INFO] [stdout] | [INFO] [stdout] 728 | pub fn iter(&self) -> Iter { [INFO] [stdout] | ^^^^^ ^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 728 | pub fn iter(&self) -> Iter<'_> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling heck v0.3.3 [INFO] [stderr] Compiling strum_macros v0.19.4 [INFO] [stderr] Compiling sudoku v0.8.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/board/sudoku.rs:728:17 [INFO] [stdout] | [INFO] [stdout] 728 | pub fn iter(&self) -> Iter { [INFO] [stdout] | ^^^^^ ^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 728 | pub fn iter(&self) -> Iter<'_> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 5.02s [INFO] running `Command { std: "docker" "inspect" "551e6bcf6159316318281899201a50719e98c8d603869b6554177b1339d7d0cb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "551e6bcf6159316318281899201a50719e98c8d603869b6554177b1339d7d0cb", kill_on_drop: false }` [INFO] [stdout] 551e6bcf6159316318281899201a50719e98c8d603869b6554177b1339d7d0cb [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 5e486475c06bca4104d0cfbf4fd59e64056e3a69a50ef954cb88859fc7e46346 [INFO] running `Command { std: "docker" "start" "-a" "5e486475c06bca4104d0cfbf4fd59e64056e3a69a50ef954cb88859fc7e46346", kill_on_drop: false }` [INFO] [stderr] warning: struct `GridState` is never constructed [INFO] [stderr] --> src/board/grid_state.rs:4:12 [INFO] [stderr] | [INFO] [stderr] 4 | pub struct GridState([CellState; 81]); [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stderr] --> src/board/sudoku.rs:728:17 [INFO] [stderr] | [INFO] [stderr] 728 | pub fn iter(&self) -> Iter { [INFO] [stderr] | ^^^^^ ^^^^ the same lifetime is hidden here [INFO] [stderr] | | [INFO] [stderr] | the lifetime is elided here [INFO] [stderr] | [INFO] [stderr] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stderr] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stderr] help: use `'_` for type paths [INFO] [stderr] | [INFO] [stderr] 728 | pub fn iter(&self) -> Iter<'_> { [INFO] [stderr] | ++++ [INFO] [stderr] [INFO] [stderr] warning: `sudoku` (lib) generated 2 warnings (run `cargo fix --lib -p sudoku` to apply 1 suggestion) [INFO] [stderr] warning: `sudoku` (lib test) generated 1 warning (1 duplicate) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/sudoku-481224a75f8ac601) [INFO] [stdout] [INFO] [stdout] running 16 tests [INFO] [stdout] test board::positions::test::col_cells ... ok [INFO] [stdout] test board::positions::test::band_cells ... ok [INFO] [stdout] test board::grid_state::grid_state_roundtrip ... ok [INFO] [stdout] test board::positions::test::row_cells ... ok [INFO] [stdout] test board::positions::test::unique ... ok [INFO] [stdout] test board::positions::test::stack_cells ... ok [INFO] [stdout] test strategy::strategies::xy_wing::test::xy_wing ... ok [INFO] [stdout] test board::sudoku::test::test_symmetry_all_cells_equivalent ... ok [INFO] [stdout] test strategy::strategies::xyz_wing::test::xyz_wing ... ok [INFO] [stdout] test strategy::solver::test::grid_state_str_impossible_sudoku ... ok [INFO] [stdout] test board::sudoku::test::test_symmetry_composite_symmetries ... ok [INFO] [stdout] test board::canonicalization::most_canonical_grid_automorphism_count ... ok [INFO] [stdout] test strategy::solver::test::strategy_solver_correct_solution_medium_sudokus ... ok [INFO] [stdout] test strategy::solver::test::roundtrip_grid_state_str ... ok [INFO] [stdout] test strategy::solver::test::strategy_solver_correct_solution_easy_sudokus ... ok [INFO] [stdout] test board::canonicalization::transformation_from_struct ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 16 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.11s [INFO] [stdout] [INFO] [stderr] Running tests/lib.rs (/opt/rustwide/target/debug/deps/lib-ebc268ef16e7c328) [INFO] [stdout] [INFO] [stdout] running 20 tests [INFO] [stdout] test from_str_line_too_short ... ok [INFO] [stdout] test from_str_line_with_comment ... ok [INFO] [stdout] test correct_solution_medium_sudokus ... ok [INFO] [stdout] test is_solved_on_solved ... ok [INFO] [stdout] test correct_solution_easy_sudokus ... ok [INFO] [stdout] test is_solved_on_unsolved ... ok [INFO] [stdout] test readme ... ok [INFO] [stdout] test solve_2 ... ok [INFO] [stdout] test parse_permissive ... ok [INFO] [stdout] test solve_1 ... ok [INFO] [stdout] test solutionless_sudokus ... ok [INFO] [stdout] test correct_solution_hard_sudokus ... ok [INFO] [stdout] test solution_multiple_solutions - should panic ... ok [INFO] [stdout] test wrong_format_1 - should panic ... ok [INFO] [stdout] test shuffle_unsolved ... ok [INFO] [stdout] test shuffle_solved ... ok [INFO] [stdout] test generate_sudoku_uniqueness ... ok [INFO] [stdout] test generate_solved_sudoku_correctness ... ok [INFO] [stdout] test canonicalize ... ok [INFO] [stdout] test canonicalize_idempotency ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 20 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 2.44s [INFO] [stdout] [INFO] [stderr] Doc-tests sudoku [INFO] [stdout] [INFO] [stdout] running 3 tests [INFO] [stdout] test src/board/sudoku.rs - board::sudoku::Sudoku::to_str_line (line 741) ... ok [INFO] [stdout] test src/board/sudoku.rs - board::sudoku::Sudoku::display_block (line 770) ... ok [INFO] [stdout] test src/lib.rs - (line 25) ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.41s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "5e486475c06bca4104d0cfbf4fd59e64056e3a69a50ef954cb88859fc7e46346", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5e486475c06bca4104d0cfbf4fd59e64056e3a69a50ef954cb88859fc7e46346", kill_on_drop: false }` [INFO] [stdout] 5e486475c06bca4104d0cfbf4fd59e64056e3a69a50ef954cb88859fc7e46346