Dec 06 04:53:09.201 INFO testing brinchj/rust-sudoku-fun against master#906deae0790bd18681b937fe9a141a3c26cf1855 for pr-56514
Dec 06 04:53:09.201 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-4/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56514/master#906deae0790bd18681b937fe9a141a3c26cf1855:/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 +906deae0790bd18681b937fe9a141a3c26cf1855-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 04:53:09.650 INFO [stdout] b8d4a6b020254174fd1716b6064d95aef1c376af67518298b5dd334a482d4798
Dec 06 04:53:09.652 INFO running `"docker" "start" "-a" "b8d4a6b020254174fd1716b6064d95aef1c376af67518298b5dd334a482d4798"`
Dec 06 04:53:10.924 INFO [stderr] usermod: no changes
Dec 06 04:53:11.076 INFO [stderr]    Compiling debugtrace v0.1.0
Dec 06 04:53:11.076 INFO [stderr]    Compiling either v0.1.7
Dec 06 04:53:11.076 INFO [stderr]    Compiling conv v0.3.3
Dec 06 04:53:11.117 INFO [stderr]    Compiling backtrace v0.1.8
Dec 06 04:53:14.370 INFO [stderr]    Compiling chomp v0.3.1
Dec 06 04:53:16.375 INFO [stderr]    Compiling sudokusolver v0.1.0 (/source)
Dec 06 04:53:17.698 INFO [stderr] warning: unused `#[macro_use]` import
Dec 06 04:53:17.699 INFO [stderr]  --> src/lib.rs:3:1
Dec 06 04:53:17.699 INFO [stderr]   |
Dec 06 04:53:17.699 INFO [stderr] 3 | #[macro_use]
Dec 06 04:53:17.699 INFO [stderr]   | ^^^^^^^^^^^^
Dec 06 04:53:17.699 INFO [stderr]   |
Dec 06 04:53:17.699 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 06 04:53:17.699 INFO [stderr] 
Dec 06 04:53:17.865 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 04:53:17.865 INFO [stderr]  --> src/lib.rs:1:12
Dec 06 04:53:17.865 INFO [stderr]   |
Dec 06 04:53:17.865 INFO [stderr] 1 | #![feature(iterator_step_by)]
Dec 06 04:53:17.865 INFO [stderr]   |            ^^^^^^^^^^^^^^^^
Dec 06 04:53:17.865 INFO [stderr]   |
Dec 06 04:53:17.865 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 06 04:53:17.865 INFO [stderr] 
Dec 06 04:53:21.304 INFO [stderr] warning: unused `#[macro_use]` import
Dec 06 04:53:21.305 INFO [stderr]  --> src/main.rs:3:1
Dec 06 04:53:21.305 INFO [stderr]   |
Dec 06 04:53:21.305 INFO [stderr] 3 | #[macro_use]
Dec 06 04:53:21.305 INFO [stderr]   | ^^^^^^^^^^^^
Dec 06 04:53:21.306 INFO [stderr]   |
Dec 06 04:53:21.306 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 06 04:53:21.306 INFO [stderr] 
Dec 06 04:53:21.458 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 04:53:21.458 INFO [stderr]  --> src/main.rs:1:12
Dec 06 04:53:21.458 INFO [stderr]   |
Dec 06 04:53:21.459 INFO [stderr] 1 | #![feature(iterator_step_by)]
Dec 06 04:53:21.459 INFO [stderr]   |            ^^^^^^^^^^^^^^^^
Dec 06 04:53:21.459 INFO [stderr]   |
Dec 06 04:53:21.460 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 06 04:53:21.460 INFO [stderr] 
Dec 06 04:53:24.072 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.12s
Dec 06 04:53:24.078 INFO [stderr] su: No module specific data is present
Dec 06 04:53:25.338 INFO running `"docker" "inspect" "b8d4a6b020254174fd1716b6064d95aef1c376af67518298b5dd334a482d4798"`
Dec 06 04:53:25.606 INFO running `"docker" "rm" "-f" "b8d4a6b020254174fd1716b6064d95aef1c376af67518298b5dd334a482d4798"`
Dec 06 04:53:25.981 INFO [stdout] b8d4a6b020254174fd1716b6064d95aef1c376af67518298b5dd334a482d4798
Dec 06 04:53:25.986 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-4/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56514/master#906deae0790bd18681b937fe9a141a3c26cf1855:/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 +906deae0790bd18681b937fe9a141a3c26cf1855-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 04:53:26.380 INFO [stdout] 0782435519dbf050908b8f1095293a9bece22812948fe1601a4bab15f5974a53
Dec 06 04:53:26.382 INFO running `"docker" "start" "-a" "0782435519dbf050908b8f1095293a9bece22812948fe1601a4bab15f5974a53"`
Dec 06 04:53:27.880 INFO [stderr] usermod: no changes
Dec 06 04:53:28.000 INFO [stderr]    Compiling sudokusolver v0.1.0 (/source)
Dec 06 04:53:29.844 INFO [stderr] warning: unused `#[macro_use]` import
Dec 06 04:53:29.844 INFO [stderr]  --> src/lib.rs:3:1
Dec 06 04:53:29.844 INFO [stderr]   |
Dec 06 04:53:29.845 INFO [stderr] 3 | #[macro_use]
Dec 06 04:53:29.845 INFO [stderr]   | ^^^^^^^^^^^^
Dec 06 04:53:29.845 INFO [stderr]   |
Dec 06 04:53:29.845 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 06 04:53:29.845 INFO [stderr] 
Dec 06 04:53:29.936 INFO [stderr] warning: unused `#[macro_use]` import
Dec 06 04:53:29.936 INFO [stderr]  --> src/main.rs:3:1
Dec 06 04:53:29.936 INFO [stderr]   |
Dec 06 04:53:29.936 INFO [stderr] 3 | #[macro_use]
Dec 06 04:53:29.936 INFO [stderr]   | ^^^^^^^^^^^^
Dec 06 04:53:29.936 INFO [stderr]   |
Dec 06 04:53:29.952 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 06 04:53:29.952 INFO [stderr] 
Dec 06 04:53:30.108 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 04:53:30.108 INFO [stderr]  --> src/lib.rs:1:12
Dec 06 04:53:30.108 INFO [stderr]   |
Dec 06 04:53:30.108 INFO [stderr] 1 | #![feature(iterator_step_by)]
Dec 06 04:53:30.108 INFO [stderr]   |            ^^^^^^^^^^^^^^^^
Dec 06 04:53:30.108 INFO [stderr]   |
Dec 06 04:53:30.108 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 06 04:53:30.108 INFO [stderr] 
Dec 06 04:53:30.280 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 04:53:30.280 INFO [stderr]  --> src/main.rs:1:12
Dec 06 04:53:30.280 INFO [stderr]   |
Dec 06 04:53:30.280 INFO [stderr] 1 | #![feature(iterator_step_by)]
Dec 06 04:53:30.280 INFO [stderr]   |            ^^^^^^^^^^^^^^^^
Dec 06 04:53:30.280 INFO [stderr]   |
Dec 06 04:53:30.280 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 06 04:53:30.280 INFO [stderr] 
Dec 06 04:53:30.812 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.90s
Dec 06 04:53:30.814 INFO [stderr] su: No module specific data is present
Dec 06 04:53:31.530 INFO running `"docker" "inspect" "0782435519dbf050908b8f1095293a9bece22812948fe1601a4bab15f5974a53"`
Dec 06 04:53:31.826 INFO running `"docker" "rm" "-f" "0782435519dbf050908b8f1095293a9bece22812948fe1601a4bab15f5974a53"`
Dec 06 04:53:32.187 INFO [stdout] 0782435519dbf050908b8f1095293a9bece22812948fe1601a4bab15f5974a53
Dec 06 04:53:32.190 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-4/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56514/master#906deae0790bd18681b937fe9a141a3c26cf1855:/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 +906deae0790bd18681b937fe9a141a3c26cf1855-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 04:53:32.628 INFO [stdout] 1cc7ac5c679065826130adb65f144a7110062c07c651b60d0202beb875fdef03
Dec 06 04:53:32.636 INFO running `"docker" "start" "-a" "1cc7ac5c679065826130adb65f144a7110062c07c651b60d0202beb875fdef03"`
Dec 06 04:53:33.654 INFO [stderr] usermod: no changes
Dec 06 04:53:33.792 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.11s
Dec 06 04:53:33.800 INFO [stderr]      Running /target/debug/deps/sudokusolver-3ad30f64c4368628
Dec 06 04:53:33.802 INFO [stdout] 
Dec 06 04:53:33.802 INFO [stdout] running 0 tests
Dec 06 04:53:33.802 INFO [stdout] 
Dec 06 04:53:33.802 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 06 04:53:33.802 INFO [stdout] 
Dec 06 04:53:33.804 INFO [stderr]      Running /target/debug/deps/sudokusolver-fa3fd8796b03758b
Dec 06 04:53:33.816 INFO [stderr]    Doc-tests sudokusolver
Dec 06 04:53:33.816 INFO [stdout] 
Dec 06 04:53:33.816 INFO [stdout] running 0 tests
Dec 06 04:53:33.816 INFO [stdout] 
Dec 06 04:53:33.816 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 06 04:53:33.816 INFO [stdout] 
Dec 06 04:53:35.860 INFO [stdout] 
Dec 06 04:53:35.860 INFO [stdout] running 0 tests
Dec 06 04:53:35.860 INFO [stdout] 
Dec 06 04:53:35.860 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 06 04:53:35.860 INFO [stdout] 
Dec 06 04:53:35.868 INFO [stderr] su: No module specific data is present
Dec 06 04:53:37.102 INFO running `"docker" "inspect" "1cc7ac5c679065826130adb65f144a7110062c07c651b60d0202beb875fdef03"`
Dec 06 04:53:37.438 INFO running `"docker" "rm" "-f" "1cc7ac5c679065826130adb65f144a7110062c07c651b60d0202beb875fdef03"`
Dec 06 04:53:37.693 INFO [stdout] 1cc7ac5c679065826130adb65f144a7110062c07c651b60d0202beb875fdef03