Nov 17 10:30:18.618 INFO testing aacunningham/sudoku_ai_rust against try#2e026d6e5d7621634147ad4c8074f1d964dbb1be for pr-55982
Nov 17 10:30:18.619 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-7/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-55982/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/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 +2e026d6e5d7621634147ad4c8074f1d964dbb1be-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"`
Nov 17 10:30:18.870 INFO [stdout] f2a4a9bb74ef1c0e6776da3e9cc33ec7a690939c972756b0a9e2d97c2cf03ed4
Nov 17 10:30:18.876 INFO running `"docker" "start" "-a" "f2a4a9bb74ef1c0e6776da3e9cc33ec7a690939c972756b0a9e2d97c2cf03ed4"`
Nov 17 10:30:19.654 INFO [stderr] usermod: no changes
Nov 17 10:30:19.685 INFO [stderr]    Compiling sudoku_ai v0.1.0 (/source)
Nov 17 10:30:20.135 INFO [stderr] warning: the feature `iterator_step_by` has been stable since 1.28.0 and no longer requires an attribute to enable
Nov 17 10:30:20.135 INFO [stderr]  --> src/lib.rs:1:12
Nov 17 10:30:20.135 INFO [stderr]   |
Nov 17 10:30:20.135 INFO [stderr] 1 | #![feature(iterator_step_by)]
Nov 17 10:30:20.135 INFO [stderr]   |            ^^^^^^^^^^^^^^^^
Nov 17 10:30:20.135 INFO [stderr]   |
Nov 17 10:30:20.135 INFO [stderr]   = note: #[warn(stable_features)] on by default
Nov 17 10:30:20.135 INFO [stderr] 
Nov 17 10:30:22.479 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.79s
Nov 17 10:30:22.480 INFO [stderr] su: No module specific data is present
Nov 17 10:30:23.213 INFO running `"docker" "inspect" "f2a4a9bb74ef1c0e6776da3e9cc33ec7a690939c972756b0a9e2d97c2cf03ed4"`
Nov 17 10:30:23.306 INFO running `"docker" "rm" "-f" "f2a4a9bb74ef1c0e6776da3e9cc33ec7a690939c972756b0a9e2d97c2cf03ed4"`
Nov 17 10:30:23.463 INFO [stdout] f2a4a9bb74ef1c0e6776da3e9cc33ec7a690939c972756b0a9e2d97c2cf03ed4
Nov 17 10:30:23.468 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-7/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-55982/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/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 +2e026d6e5d7621634147ad4c8074f1d964dbb1be-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"`
Nov 17 10:30:23.656 INFO [stdout] 1299d0f5689b0f243434d77a9841f1175e2168f691b8840477850804ba8a6f79
Nov 17 10:30:23.665 INFO running `"docker" "start" "-a" "1299d0f5689b0f243434d77a9841f1175e2168f691b8840477850804ba8a6f79"`
Nov 17 10:30:24.707 INFO [stderr] usermod: no changes
Nov 17 10:30:24.783 INFO [stderr]    Compiling sudoku_ai v0.1.0 (/source)
Nov 17 10:30:25.454 INFO [stderr] warning: the feature `iterator_step_by` has been stable since 1.28.0 and no longer requires an attribute to enable
Nov 17 10:30:25.454 INFO [stderr]  --> src/lib.rs:1:12
Nov 17 10:30:25.454 INFO [stderr]   |
Nov 17 10:30:25.454 INFO [stderr] 1 | #![feature(iterator_step_by)]
Nov 17 10:30:25.455 INFO [stderr]   |            ^^^^^^^^^^^^^^^^
Nov 17 10:30:25.455 INFO [stderr]   |
Nov 17 10:30:25.455 INFO [stderr]   = note: #[warn(stable_features)] on by default
Nov 17 10:30:25.456 INFO [stderr] 
Nov 17 10:30:25.823 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.07s
Nov 17 10:30:25.823 INFO [stderr] su: No module specific data is present
Nov 17 10:30:26.142 INFO running `"docker" "inspect" "1299d0f5689b0f243434d77a9841f1175e2168f691b8840477850804ba8a6f79"`
Nov 17 10:30:26.268 INFO running `"docker" "rm" "-f" "1299d0f5689b0f243434d77a9841f1175e2168f691b8840477850804ba8a6f79"`
Nov 17 10:30:26.439 INFO [stdout] 1299d0f5689b0f243434d77a9841f1175e2168f691b8840477850804ba8a6f79
Nov 17 10:30:26.446 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-7/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-55982/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/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 +2e026d6e5d7621634147ad4c8074f1d964dbb1be-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"`
Nov 17 10:30:26.972 INFO [stdout] fea6f97efe2ccb61f0aefaafc405e7c91ecf846ae844a570b516a13e3da94722
Nov 17 10:30:26.975 INFO running `"docker" "start" "-a" "fea6f97efe2ccb61f0aefaafc405e7c91ecf846ae844a570b516a13e3da94722"`
Nov 17 10:30:27.810 INFO [stderr] usermod: no changes
Nov 17 10:30:27.864 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
Nov 17 10:30:27.864 INFO [stderr]      Running /target/debug/deps/sudoku_ai-1a0a064b2ca7e628
Nov 17 10:30:27.880 INFO [stderr]      Running /target/debug/deps/sudoku_ai-4e2752dc8a0cf83a
Nov 17 10:30:27.880 INFO [stdout] 
Nov 17 10:30:27.881 INFO [stdout] running 0 tests
Nov 17 10:30:27.881 INFO [stdout] 
Nov 17 10:30:27.881 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Nov 17 10:30:27.881 INFO [stdout] 
Nov 17 10:30:27.883 INFO [stdout] 
Nov 17 10:30:27.883 INFO [stdout] running 0 tests
Nov 17 10:30:27.883 INFO [stdout] 
Nov 17 10:30:27.883 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Nov 17 10:30:27.883 INFO [stdout] 
Nov 17 10:30:27.887 INFO [stderr]    Doc-tests sudoku_ai
Nov 17 10:30:28.407 INFO [stdout] 
Nov 17 10:30:28.407 INFO [stdout] running 6 tests
Nov 17 10:30:29.259 INFO [stdout] test src/sudoku/puzzle.rs - sudoku::puzzle::Puzzle (line 12) ... ok
Nov 17 10:30:29.393 INFO [stdout] test src/sudoku/puzzle.rs - sudoku::puzzle::Puzzle::is_valid (line 144) ... ok
Nov 17 10:30:29.583 INFO [stdout] test src/sudoku/puzzle.rs - sudoku::puzzle::Puzzle::is_solved (line 115) ... ok
Nov 17 10:30:29.675 INFO [stdout] test src/sudoku/puzzle.rs - sudoku::puzzle::Puzzle::read_from_file (line 46) ... ok
Nov 17 10:30:29.751 INFO [stdout] test src/sudoku/puzzle.rs - sudoku::puzzle::Puzzle::solve (line 263) ... ok
Nov 17 10:30:29.845 INFO [stdout] test src/sudoku/puzzle.rs - sudoku::puzzle::Puzzle::read_from_string (line 84) ... ok
Nov 17 10:30:29.845 INFO [stdout] 
Nov 17 10:30:29.846 INFO [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Nov 17 10:30:29.846 INFO [stdout] 
Nov 17 10:30:29.857 INFO [stderr] su: No module specific data is present
Nov 17 10:30:30.364 INFO running `"docker" "inspect" "fea6f97efe2ccb61f0aefaafc405e7c91ecf846ae844a570b516a13e3da94722"`
Nov 17 10:30:30.603 INFO running `"docker" "rm" "-f" "fea6f97efe2ccb61f0aefaafc405e7c91ecf846ae844a570b516a13e3da94722"`
Nov 17 10:30:30.802 INFO [stdout] fea6f97efe2ccb61f0aefaafc405e7c91ecf846ae844a570b516a13e3da94722