Dec 14 00:45:40.948 INFO testing brinchj/rust-sudoku-fun against master#bd47d6825bf4090517549d33cfef10d3300b4a75 for pr-56550
Dec 14 00:45:40.948 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-6/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-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 14 00:45:41.391 INFO [stdout] 9578ff12300cb53d989b287072cc6dc41b1d491eaf76476d0be590c3a134f60f
Dec 14 00:45:41.393 INFO running `"docker" "start" "-a" "9578ff12300cb53d989b287072cc6dc41b1d491eaf76476d0be590c3a134f60f"`
Dec 14 00:45:41.900 INFO [stderr] usermod: no changes
Dec 14 00:45:42.024 INFO [stderr]    Compiling debugtrace v0.1.0
Dec 14 00:45:42.024 INFO [stderr]    Compiling debug-builders v0.1.0
Dec 14 00:45:42.024 INFO [stderr]    Compiling either v0.1.7
Dec 14 00:45:42.024 INFO [stderr]    Compiling conv v0.3.3
Dec 14 00:45:44.084 INFO [stderr]    Compiling backtrace v0.1.8
Dec 14 00:45:46.594 INFO [stderr]    Compiling chomp v0.3.1
Dec 14 00:45:48.469 INFO [stderr]    Compiling sudokusolver v0.1.0 (/source)
Dec 14 00:45:49.839 INFO [stderr] warning: unused `#[macro_use]` import
Dec 14 00:45:49.839 INFO [stderr]  --> src/lib.rs:3:1
Dec 14 00:45:49.840 INFO [stderr]   |
Dec 14 00:45:49.840 INFO [stderr] 3 | #[macro_use]
Dec 14 00:45:49.840 INFO [stderr]   | ^^^^^^^^^^^^
Dec 14 00:45:49.840 INFO [stderr]   |
Dec 14 00:45:49.841 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 14 00:45:49.841 INFO [stderr] 
Dec 14 00:45:50.056 INFO [stderr] warning: the feature `iterator_step_by` has been stable since 1.28.0 and no longer requires an attribute to enable
Dec 14 00:45:50.056 INFO [stderr]  --> src/lib.rs:1:12
Dec 14 00:45:50.056 INFO [stderr]   |
Dec 14 00:45:50.056 INFO [stderr] 1 | #![feature(iterator_step_by)]
Dec 14 00:45:50.057 INFO [stderr]   |            ^^^^^^^^^^^^^^^^
Dec 14 00:45:50.057 INFO [stderr]   |
Dec 14 00:45:50.057 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 14 00:45:50.057 INFO [stderr] 
Dec 14 00:45:53.562 INFO [stderr] warning: unused `#[macro_use]` import
Dec 14 00:45:53.562 INFO [stderr]  --> src/main.rs:3:1
Dec 14 00:45:53.563 INFO [stderr]   |
Dec 14 00:45:53.563 INFO [stderr] 3 | #[macro_use]
Dec 14 00:45:53.563 INFO [stderr]   | ^^^^^^^^^^^^
Dec 14 00:45:53.563 INFO [stderr]   |
Dec 14 00:45:53.567 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 14 00:45:53.567 INFO [stderr] 
Dec 14 00:45:53.823 INFO [stderr] warning: the feature `iterator_step_by` has been stable since 1.28.0 and no longer requires an attribute to enable
Dec 14 00:45:53.823 INFO [stderr]  --> src/main.rs:1:12
Dec 14 00:45:53.823 INFO [stderr]   |
Dec 14 00:45:53.823 INFO [stderr] 1 | #![feature(iterator_step_by)]
Dec 14 00:45:53.823 INFO [stderr]   |            ^^^^^^^^^^^^^^^^
Dec 14 00:45:53.823 INFO [stderr]   |
Dec 14 00:45:53.823 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 14 00:45:53.823 INFO [stderr] 
Dec 14 00:45:56.495 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.56s
Dec 14 00:45:56.501 INFO [stderr] su: No module specific data is present
Dec 14 00:45:57.581 INFO running `"docker" "inspect" "9578ff12300cb53d989b287072cc6dc41b1d491eaf76476d0be590c3a134f60f"`
Dec 14 00:45:57.883 INFO running `"docker" "rm" "-f" "9578ff12300cb53d989b287072cc6dc41b1d491eaf76476d0be590c3a134f60f"`
Dec 14 00:45:58.219 INFO [stdout] 9578ff12300cb53d989b287072cc6dc41b1d491eaf76476d0be590c3a134f60f
Dec 14 00:45:58.221 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-6/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-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 14 00:45:58.586 INFO [stdout] 8188d47f13818de1b8645f1dc723a0581e63cfbdb1ec8523386e53cd65b4205c
Dec 14 00:45:58.588 INFO running `"docker" "start" "-a" "8188d47f13818de1b8645f1dc723a0581e63cfbdb1ec8523386e53cd65b4205c"`
Dec 14 00:45:59.510 INFO [stderr] usermod: no changes
Dec 14 00:45:59.603 INFO [stderr]    Compiling sudokusolver v0.1.0 (/source)
Dec 14 00:46:00.915 INFO [stderr] warning: unused `#[macro_use]` import
Dec 14 00:46:00.915 INFO [stderr]  --> src/main.rs:3:1
Dec 14 00:46:00.915 INFO [stderr]   |
Dec 14 00:46:00.915 INFO [stderr] 3 | #[macro_use]
Dec 14 00:46:00.915 INFO [stderr]   | ^^^^^^^^^^^^
Dec 14 00:46:00.915 INFO [stderr]   |
Dec 14 00:46:00.915 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 14 00:46:00.915 INFO [stderr] 
Dec 14 00:46:01.059 INFO [stderr] warning: unused `#[macro_use]` import
Dec 14 00:46:01.059 INFO [stderr]  --> src/lib.rs:3:1
Dec 14 00:46:01.059 INFO [stderr]   |
Dec 14 00:46:01.059 INFO [stderr] 3 | #[macro_use]
Dec 14 00:46:01.059 INFO [stderr]   | ^^^^^^^^^^^^
Dec 14 00:46:01.059 INFO [stderr]   |
Dec 14 00:46:01.059 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 14 00:46:01.059 INFO [stderr] 
Dec 14 00:46:01.123 INFO [stderr] warning: the feature `iterator_step_by` has been stable since 1.28.0 and no longer requires an attribute to enable
Dec 14 00:46:01.123 INFO [stderr]  --> src/main.rs:1:12
Dec 14 00:46:01.123 INFO [stderr]   |
Dec 14 00:46:01.123 INFO [stderr] 1 | #![feature(iterator_step_by)]
Dec 14 00:46:01.123 INFO [stderr]   |            ^^^^^^^^^^^^^^^^
Dec 14 00:46:01.123 INFO [stderr]   |
Dec 14 00:46:01.123 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 14 00:46:01.123 INFO [stderr] 
Dec 14 00:46:01.579 INFO [stderr] warning: the feature `iterator_step_by` has been stable since 1.28.0 and no longer requires an attribute to enable
Dec 14 00:46:01.579 INFO [stderr]  --> src/lib.rs:1:12
Dec 14 00:46:01.579 INFO [stderr]   |
Dec 14 00:46:01.579 INFO [stderr] 1 | #![feature(iterator_step_by)]
Dec 14 00:46:01.579 INFO [stderr]   |            ^^^^^^^^^^^^^^^^
Dec 14 00:46:01.579 INFO [stderr]   |
Dec 14 00:46:01.579 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 14 00:46:01.579 INFO [stderr] 
Dec 14 00:46:01.947 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.41s
Dec 14 00:46:01.950 INFO [stderr] su: No module specific data is present
Dec 14 00:46:02.757 INFO running `"docker" "inspect" "8188d47f13818de1b8645f1dc723a0581e63cfbdb1ec8523386e53cd65b4205c"`
Dec 14 00:46:03.079 INFO running `"docker" "rm" "-f" "8188d47f13818de1b8645f1dc723a0581e63cfbdb1ec8523386e53cd65b4205c"`
Dec 14 00:46:03.363 INFO [stdout] 8188d47f13818de1b8645f1dc723a0581e63cfbdb1ec8523386e53cd65b4205c
Dec 14 00:46:03.365 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-6/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-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 14 00:46:03.899 INFO [stdout] 85956b6c3c246a211c5a75da8430e4b34aad9524b2002af8e0ca37e713369a62
Dec 14 00:46:03.905 INFO running `"docker" "start" "-a" "85956b6c3c246a211c5a75da8430e4b34aad9524b2002af8e0ca37e713369a62"`
Dec 14 00:46:05.683 INFO [stderr] usermod: no changes
Dec 14 00:46:05.757 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
Dec 14 00:46:05.775 INFO [stderr]      Running /target/debug/deps/sudokusolver-2959e4fb04c82740
Dec 14 00:46:05.779 INFO [stdout] 
Dec 14 00:46:05.779 INFO [stdout] running 0 tests
Dec 14 00:46:05.779 INFO [stdout] 
Dec 14 00:46:05.779 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 14 00:46:05.779 INFO [stdout] 
Dec 14 00:46:05.787 INFO [stdout] 
Dec 14 00:46:05.787 INFO [stderr]      Running /target/debug/deps/sudokusolver-e8e424406302f2b9
Dec 14 00:46:05.787 INFO [stdout] running 0 tests
Dec 14 00:46:05.787 INFO [stderr]    Doc-tests sudokusolver
Dec 14 00:46:05.787 INFO [stdout] 
Dec 14 00:46:05.787 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 14 00:46:05.787 INFO [stdout] 
Dec 14 00:46:08.003 INFO [stdout] 
Dec 14 00:46:08.003 INFO [stdout] running 0 tests
Dec 14 00:46:08.003 INFO [stdout] 
Dec 14 00:46:08.003 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 14 00:46:08.003 INFO [stdout] 
Dec 14 00:46:08.019 INFO [stderr] su: No module specific data is present
Dec 14 00:46:09.001 INFO running `"docker" "inspect" "85956b6c3c246a211c5a75da8430e4b34aad9524b2002af8e0ca37e713369a62"`
Dec 14 00:46:09.323 INFO running `"docker" "rm" "-f" "85956b6c3c246a211c5a75da8430e4b34aad9524b2002af8e0ca37e713369a62"`
Dec 14 00:46:09.521 INFO [stdout] 85956b6c3c246a211c5a75da8430e4b34aad9524b2002af8e0ca37e713369a62