Dec 06 04:53:08.502 INFO testing brinchj/rust-sudoku-fun against try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468 for pr-56514
Dec 06 04:53:08.502 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 04:53:08.936 INFO [stdout] 58ae5a07e86726dae5c44f59c9402bd4b8e94d78f867cb43953b30f63444bcf4
Dec 06 04:53:08.938 INFO running `"docker" "start" "-a" "58ae5a07e86726dae5c44f59c9402bd4b8e94d78f867cb43953b30f63444bcf4"`
Dec 06 04:53:09.848 INFO [stderr] usermod: no changes
Dec 06 04:53:09.956 INFO [stderr]    Compiling debugtrace v0.1.0
Dec 06 04:53:09.956 INFO [stderr]    Compiling debug-builders v0.1.0
Dec 06 04:53:09.956 INFO [stderr]    Compiling either v0.1.7
Dec 06 04:53:09.956 INFO [stderr]    Compiling conv v0.3.3
Dec 06 04:53:09.968 INFO [stderr]    Compiling im v10.2.0
Dec 06 04:53:11.310 INFO [stderr]    Compiling backtrace v0.1.8
Dec 06 04:53:14.546 INFO [stderr]    Compiling chomp v0.3.1
Dec 06 04:53:17.278 INFO [stderr]    Compiling sudokusolver v0.1.0 (/source)
Dec 06 04:53:18.523 INFO [stderr] warning: unused `#[macro_use]` import
Dec 06 04:53:18.523 INFO [stderr]  --> src/lib.rs:3:1
Dec 06 04:53:18.523 INFO [stderr]   |
Dec 06 04:53:18.523 INFO [stderr] 3 | #[macro_use]
Dec 06 04:53:18.523 INFO [stderr]   | ^^^^^^^^^^^^
Dec 06 04:53:18.523 INFO [stderr]   |
Dec 06 04:53:18.523 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 06 04:53:18.523 INFO [stderr] 
Dec 06 04:53:18.679 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 04:53:18.679 INFO [stderr]  --> src/lib.rs:1:12
Dec 06 04:53:18.680 INFO [stderr]   |
Dec 06 04:53:18.680 INFO [stderr] 1 | #![feature(iterator_step_by)]
Dec 06 04:53:18.680 INFO [stderr]   |            ^^^^^^^^^^^^^^^^
Dec 06 04:53:18.680 INFO [stderr]   |
Dec 06 04:53:18.681 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 06 04:53:18.681 INFO [stderr] 
Dec 06 04:53:22.060 INFO [stderr] warning: unused `#[macro_use]` import
Dec 06 04:53:22.060 INFO [stderr]  --> src/main.rs:3:1
Dec 06 04:53:22.060 INFO [stderr]   |
Dec 06 04:53:22.060 INFO [stderr] 3 | #[macro_use]
Dec 06 04:53:22.060 INFO [stderr]   | ^^^^^^^^^^^^
Dec 06 04:53:22.060 INFO [stderr]   |
Dec 06 04:53:22.060 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 06 04:53:22.060 INFO [stderr] 
Dec 06 04:53:22.216 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 04:53:22.216 INFO [stderr]  --> src/main.rs:1:12
Dec 06 04:53:22.216 INFO [stderr]   |
Dec 06 04:53:22.216 INFO [stderr] 1 | #![feature(iterator_step_by)]
Dec 06 04:53:22.216 INFO [stderr]   |            ^^^^^^^^^^^^^^^^
Dec 06 04:53:22.216 INFO [stderr]   |
Dec 06 04:53:22.216 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 06 04:53:22.216 INFO [stderr] 
Dec 06 04:53:24.677 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.80s
Dec 06 04:53:24.682 INFO [stderr] su: No module specific data is present
Dec 06 04:53:25.478 INFO running `"docker" "inspect" "58ae5a07e86726dae5c44f59c9402bd4b8e94d78f867cb43953b30f63444bcf4"`
Dec 06 04:53:25.922 INFO running `"docker" "rm" "-f" "58ae5a07e86726dae5c44f59c9402bd4b8e94d78f867cb43953b30f63444bcf4"`
Dec 06 04:53:26.204 INFO [stdout] 58ae5a07e86726dae5c44f59c9402bd4b8e94d78f867cb43953b30f63444bcf4
Dec 06 04:53:26.212 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 04:53:26.625 INFO [stdout] f66683c19b88701da63b394b3b7adcf5d6c242c79876c9f16febce9c7004ac49
Dec 06 04:53:26.627 INFO running `"docker" "start" "-a" "f66683c19b88701da63b394b3b7adcf5d6c242c79876c9f16febce9c7004ac49"`
Dec 06 04:53:27.956 INFO [stderr] usermod: no changes
Dec 06 04:53:28.052 INFO [stderr]    Compiling sudokusolver v0.1.0 (/source)
Dec 06 04:53:29.783 INFO [stderr] warning: unused `#[macro_use]` import
Dec 06 04:53:29.783 INFO [stderr]  --> src/lib.rs:3:1
Dec 06 04:53:29.784 INFO [stderr]   |
Dec 06 04:53:29.784 INFO [stderr] 3 | #[macro_use]
Dec 06 04:53:29.785 INFO [stderr]   | ^^^^^^^^^^^^
Dec 06 04:53:29.785 INFO [stderr]   |
Dec 06 04:53:29.785 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 06 04:53:29.785 INFO [stderr] 
Dec 06 04:53:30.000 INFO [stderr] warning: unused `#[macro_use]` import
Dec 06 04:53:30.000 INFO [stderr]  --> src/main.rs:3:1
Dec 06 04:53:30.000 INFO [stderr]   |
Dec 06 04:53:30.000 INFO [stderr] 3 | #[macro_use]
Dec 06 04:53:30.000 INFO [stderr]   | ^^^^^^^^^^^^
Dec 06 04:53:30.000 INFO [stderr]   |
Dec 06 04:53:30.000 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 06 04:53:30.000 INFO [stderr] 
Dec 06 04:53:30.020 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 04:53:30.020 INFO [stderr]  --> src/lib.rs:1:12
Dec 06 04:53:30.020 INFO [stderr]   |
Dec 06 04:53:30.020 INFO [stderr] 1 | #![feature(iterator_step_by)]
Dec 06 04:53:30.020 INFO [stderr]   |            ^^^^^^^^^^^^^^^^
Dec 06 04:53:30.020 INFO [stderr]   |
Dec 06 04:53:30.020 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 06 04:53:30.020 INFO [stderr] 
Dec 06 04:53:30.172 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 04:53:30.172 INFO [stderr]  --> src/main.rs:1:12
Dec 06 04:53:30.172 INFO [stderr]   |
Dec 06 04:53:30.172 INFO [stderr] 1 | #![feature(iterator_step_by)]
Dec 06 04:53:30.172 INFO [stderr]   |            ^^^^^^^^^^^^^^^^
Dec 06 04:53:30.172 INFO [stderr]   |
Dec 06 04:53:30.172 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 06 04:53:30.172 INFO [stderr] 
Dec 06 04:53:30.712 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.73s
Dec 06 04:53:30.719 INFO [stderr] su: No module specific data is present
Dec 06 04:53:31.494 INFO running `"docker" "inspect" "f66683c19b88701da63b394b3b7adcf5d6c242c79876c9f16febce9c7004ac49"`
Dec 06 04:53:31.848 INFO running `"docker" "rm" "-f" "f66683c19b88701da63b394b3b7adcf5d6c242c79876c9f16febce9c7004ac49"`
Dec 06 04:53:32.194 INFO [stdout] f66683c19b88701da63b394b3b7adcf5d6c242c79876c9f16febce9c7004ac49
Dec 06 04:53:32.204 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 04:53:32.656 INFO [stdout] b87998ca94d991f2677c621f43a84c93fceea88c68b8ddb551efe45ac4357d9d
Dec 06 04:53:32.663 INFO running `"docker" "start" "-a" "b87998ca94d991f2677c621f43a84c93fceea88c68b8ddb551efe45ac4357d9d"`
Dec 06 04:53:33.664 INFO [stderr] usermod: no changes
Dec 06 04:53:33.764 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.07s
Dec 06 04:53:33.776 INFO [stderr]      Running /target/debug/deps/sudokusolver-ffea030f6f02e225
Dec 06 04:53:33.787 INFO [stdout] 
Dec 06 04:53:33.787 INFO [stdout] running 0 tests
Dec 06 04:53:33.787 INFO [stdout] 
Dec 06 04:53:33.787 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 06 04:53:33.787 INFO [stdout] 
Dec 06 04:53:33.790 INFO [stderr]      Running /target/debug/deps/sudokusolver-031e6fd2fce42ebe
Dec 06 04:53:33.798 INFO [stderr]    Doc-tests sudokusolver
Dec 06 04:53:33.798 INFO [stdout] 
Dec 06 04:53:33.798 INFO [stdout] running 0 tests
Dec 06 04:53:33.798 INFO [stdout] 
Dec 06 04:53:33.798 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 06 04:53:33.798 INFO [stdout] 
Dec 06 04:53:35.807 INFO [stdout] 
Dec 06 04:53:35.807 INFO [stdout] running 0 tests
Dec 06 04:53:35.807 INFO [stdout] 
Dec 06 04:53:35.807 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 06 04:53:35.807 INFO [stdout] 
Dec 06 04:53:35.816 INFO [stderr] su: No module specific data is present
Dec 06 04:53:36.915 INFO running `"docker" "inspect" "b87998ca94d991f2677c621f43a84c93fceea88c68b8ddb551efe45ac4357d9d"`
Dec 06 04:53:37.202 INFO running `"docker" "rm" "-f" "b87998ca94d991f2677c621f43a84c93fceea88c68b8ddb551efe45ac4357d9d"`
Dec 06 04:53:37.462 INFO [stdout] b87998ca94d991f2677c621f43a84c93fceea88c68b8ddb551efe45ac4357d9d