Dec 06 08:14:13.628 INFO testing aacunningham/sudoku_ai_rust against try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468 for pr-56514
Dec 06 08:14:13.628 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-5/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-alt build --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 06 08:14:14.001 INFO [stdout] 52b99c148f484978c08d5a701b631da9f5b68a524c6ec4d46f032481cb9d261b
Dec 06 08:14:14.004 INFO running `"docker" "start" "-a" "52b99c148f484978c08d5a701b631da9f5b68a524c6ec4d46f032481cb9d261b"`
Dec 06 08:14:15.110 INFO [stderr] usermod: no changes
Dec 06 08:14:15.179 INFO [stderr]    Compiling sudoku_ai v0.1.0 (/source)
Dec 06 08:14:15.696 INFO [stderr] warning: the feature `iterator_step_by` has been stable since 1.28.0 and no longer requires an attribute to enable
Dec 06 08:14:15.696 INFO [stderr]  --> src/lib.rs:1:12
Dec 06 08:14:15.696 INFO [stderr]   |
Dec 06 08:14:15.696 INFO [stderr] 1 | #![feature(iterator_step_by)]
Dec 06 08:14:15.696 INFO [stderr]   |            ^^^^^^^^^^^^^^^^
Dec 06 08:14:15.696 INFO [stderr]   |
Dec 06 08:14:15.696 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 06 08:14:15.696 INFO [stderr] 
Dec 06 08:14:17.128 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.98s
Dec 06 08:14:17.132 INFO [stderr] su: No module specific data is present
Dec 06 08:14:17.474 INFO running `"docker" "inspect" "52b99c148f484978c08d5a701b631da9f5b68a524c6ec4d46f032481cb9d261b"`
Dec 06 08:14:17.718 INFO running `"docker" "rm" "-f" "52b99c148f484978c08d5a701b631da9f5b68a524c6ec4d46f032481cb9d261b"`
Dec 06 08:14:18.020 INFO [stdout] 52b99c148f484978c08d5a701b631da9f5b68a524c6ec4d46f032481cb9d261b
Dec 06 08:14:18.022 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-5/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-alt test --frozen --no-run" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 06 08:14:18.552 INFO [stdout] f0c00333bc82483e7be5cd07d8d5166dcb6533a032fb9c5345fd6e6ce6b67327
Dec 06 08:14:18.554 INFO running `"docker" "start" "-a" "f0c00333bc82483e7be5cd07d8d5166dcb6533a032fb9c5345fd6e6ce6b67327"`
Dec 06 08:14:19.863 INFO [stderr] usermod: no changes
Dec 06 08:14:19.906 INFO [stderr]    Compiling sudoku_ai v0.1.0 (/source)
Dec 06 08:14:20.688 INFO [stderr] warning: the feature `iterator_step_by` has been stable since 1.28.0 and no longer requires an attribute to enable
Dec 06 08:14:20.688 INFO [stderr]  --> src/lib.rs:1:12
Dec 06 08:14:20.688 INFO [stderr]   |
Dec 06 08:14:20.688 INFO [stderr] 1 | #![feature(iterator_step_by)]
Dec 06 08:14:20.688 INFO [stderr]   |            ^^^^^^^^^^^^^^^^
Dec 06 08:14:20.688 INFO [stderr]   |
Dec 06 08:14:20.688 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 06 08:14:20.688 INFO [stderr] 
Dec 06 08:14:20.956 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.06s
Dec 06 08:14:20.956 INFO [stderr] su: No module specific data is present
Dec 06 08:14:21.318 INFO running `"docker" "inspect" "f0c00333bc82483e7be5cd07d8d5166dcb6533a032fb9c5345fd6e6ce6b67327"`
Dec 06 08:14:21.522 INFO running `"docker" "rm" "-f" "f0c00333bc82483e7be5cd07d8d5166dcb6533a032fb9c5345fd6e6ce6b67327"`
Dec 06 08:14:21.587 INFO [stdout] f0c00333bc82483e7be5cd07d8d5166dcb6533a032fb9c5345fd6e6ce6b67327
Dec 06 08:14:21.589 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-5/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-alt test --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 06 08:14:21.824 INFO [stdout] fce8265f743eeaf498be5a9b3d577b5546ec635a3772d3361a83d6d6e486386f
Dec 06 08:14:21.826 INFO running `"docker" "start" "-a" "fce8265f743eeaf498be5a9b3d577b5546ec635a3772d3361a83d6d6e486386f"`
Dec 06 08:14:22.561 INFO [stderr] usermod: no changes
Dec 06 08:14:22.624 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
Dec 06 08:14:22.624 INFO [stderr]      Running /target/debug/deps/sudoku_ai-810f89b50c20e757
Dec 06 08:14:22.632 INFO [stdout] 
Dec 06 08:14:22.632 INFO [stdout] running 0 tests
Dec 06 08:14:22.632 INFO [stdout] 
Dec 06 08:14:22.632 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 06 08:14:22.632 INFO [stdout] 
Dec 06 08:14:22.640 INFO [stderr]      Running /target/debug/deps/sudoku_ai-54a2d9b75dfa8eb6
Dec 06 08:14:22.648 INFO [stderr]    Doc-tests sudoku_ai
Dec 06 08:14:22.648 INFO [stdout] 
Dec 06 08:14:22.648 INFO [stdout] running 0 tests
Dec 06 08:14:22.648 INFO [stdout] 
Dec 06 08:14:22.648 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 06 08:14:22.648 INFO [stdout] 
Dec 06 08:14:23.171 INFO [stdout] 
Dec 06 08:14:23.171 INFO [stdout] running 6 tests
Dec 06 08:14:25.145 INFO [stdout] test src/sudoku/puzzle.rs - sudoku::puzzle::Puzzle (line 12) ... ok
Dec 06 08:14:25.640 INFO [stdout] test src/sudoku/puzzle.rs - sudoku::puzzle::Puzzle::is_solved (line 115) ... ok
Dec 06 08:14:25.684 INFO [stdout] test src/sudoku/puzzle.rs - sudoku::puzzle::Puzzle::read_from_string (line 84) ... ok
Dec 06 08:14:25.684 INFO [stdout] test src/sudoku/puzzle.rs - sudoku::puzzle::Puzzle::read_from_file (line 46) ... ok
Dec 06 08:14:25.892 INFO [stdout] test src/sudoku/puzzle.rs - sudoku::puzzle::Puzzle::solve (line 263) ... ok
Dec 06 08:14:25.906 INFO [stdout] test src/sudoku/puzzle.rs - sudoku::puzzle::Puzzle::is_valid (line 144) ... ok
Dec 06 08:14:25.906 INFO [stdout] 
Dec 06 08:14:25.906 INFO [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 06 08:14:25.906 INFO [stdout] 
Dec 06 08:14:25.921 INFO [stderr] su: No module specific data is present
Dec 06 08:14:26.399 INFO running `"docker" "inspect" "fce8265f743eeaf498be5a9b3d577b5546ec635a3772d3361a83d6d6e486386f"`
Dec 06 08:14:26.632 INFO running `"docker" "rm" "-f" "fce8265f743eeaf498be5a9b3d577b5546ec635a3772d3361a83d6d6e486386f"`
Dec 06 08:14:26.831 INFO [stdout] fce8265f743eeaf498be5a9b3d577b5546ec635a3772d3361a83d6d6e486386f