Dec 06 14:00:22.951 INFO testing Flecheck/Sudoku against master#906deae0790bd18681b937fe9a141a3c26cf1855 for pr-56514
Dec 06 14:00:22.952 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-2/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/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 14:00:23.549 INFO [stdout] f27f3543585abc9a60264027b57650b61f97752579fbdede3286c06494609a88
Dec 06 14:00:23.551 INFO running `"docker" "start" "-a" "f27f3543585abc9a60264027b57650b61f97752579fbdede3286c06494609a88"`
Dec 06 14:00:25.596 INFO [stderr] usermod: no changes
Dec 06 14:00:25.672 INFO [stderr]    Compiling indexmap v0.4.1
Dec 06 14:00:26.844 INFO [stderr]    Compiling priority-queue v0.5.1
Dec 06 14:00:27.521 INFO [stderr]    Compiling sudoku v0.1.0 (/source)
Dec 06 14:00:28.216 INFO [stderr] warning: unused import: `std::time::Duration`
Dec 06 14:00:28.216 INFO [stderr]   --> src/main.rs:16:5
Dec 06 14:00:28.216 INFO [stderr]    |
Dec 06 14:00:28.216 INFO [stderr] 16 | use std::time::Duration;
Dec 06 14:00:28.217 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^
Dec 06 14:00:28.217 INFO [stderr]    |
Dec 06 14:00:28.217 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 06 14:00:28.217 INFO [stderr] 
Dec 06 14:00:28.217 INFO [stderr] warning: unused import: `std::time::Instant`
Dec 06 14:00:28.217 INFO [stderr]   --> src/main.rs:17:5
Dec 06 14:00:28.217 INFO [stderr]    |
Dec 06 14:00:28.217 INFO [stderr] 17 | use std::time::Instant;
Dec 06 14:00:28.217 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^
Dec 06 14:00:28.217 INFO [stderr] 
Dec 06 14:00:28.432 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 14:00:28.432 INFO [stderr]   --> src/main.rs:43:9
Dec 06 14:00:28.432 INFO [stderr]    |
Dec 06 14:00:28.432 INFO [stderr] 43 |         writeln!(stdout, "{}", res);
Dec 06 14:00:28.432 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 14:00:28.432 INFO [stderr]    |
Dec 06 14:00:28.432 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 06 14:00:28.432 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 14:00:28.432 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 06 14:00:28.432 INFO [stderr] 
Dec 06 14:00:30.630 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.00s
Dec 06 14:00:30.640 INFO [stderr] su: No module specific data is present
Dec 06 14:00:31.654 INFO running `"docker" "inspect" "f27f3543585abc9a60264027b57650b61f97752579fbdede3286c06494609a88"`
Dec 06 14:00:31.992 INFO running `"docker" "rm" "-f" "f27f3543585abc9a60264027b57650b61f97752579fbdede3286c06494609a88"`
Dec 06 14:00:32.371 INFO [stdout] f27f3543585abc9a60264027b57650b61f97752579fbdede3286c06494609a88
Dec 06 14:00:32.374 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-2/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/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 14:00:32.954 INFO [stdout] 78c6bad8ff555a2ab6b2503716f55ad77d0eac239b21eed7058d81122afcd2ec
Dec 06 14:00:32.956 INFO running `"docker" "start" "-a" "78c6bad8ff555a2ab6b2503716f55ad77d0eac239b21eed7058d81122afcd2ec"`
Dec 06 14:00:34.953 INFO [stderr] usermod: no changes
Dec 06 14:00:35.036 INFO [stderr]    Compiling sudoku v0.1.0 (/source)
Dec 06 14:00:35.744 INFO [stderr] warning: unused import: `std::time::Duration`
Dec 06 14:00:35.744 INFO [stderr]   --> src/main.rs:16:5
Dec 06 14:00:35.744 INFO [stderr]    |
Dec 06 14:00:35.744 INFO [stderr] 16 | use std::time::Duration;
Dec 06 14:00:35.744 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^
Dec 06 14:00:35.748 INFO [stderr]    |
Dec 06 14:00:35.748 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 06 14:00:35.748 INFO [stderr] 
Dec 06 14:00:35.748 INFO [stderr] warning: unused import: `std::time::Instant`
Dec 06 14:00:35.748 INFO [stderr]   --> src/main.rs:17:5
Dec 06 14:00:35.748 INFO [stderr]    |
Dec 06 14:00:35.748 INFO [stderr] 17 | use std::time::Instant;
Dec 06 14:00:35.748 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^
Dec 06 14:00:35.748 INFO [stderr] 
Dec 06 14:00:35.973 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 14:00:35.974 INFO [stderr]   --> src/main.rs:43:9
Dec 06 14:00:35.974 INFO [stderr]    |
Dec 06 14:00:35.974 INFO [stderr] 43 |         writeln!(stdout, "{}", res);
Dec 06 14:00:35.974 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 14:00:35.974 INFO [stderr]    |
Dec 06 14:00:35.974 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 06 14:00:35.974 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 14:00:35.974 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 06 14:00:35.974 INFO [stderr] 
Dec 06 14:00:36.340 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.35s
Dec 06 14:00:36.340 INFO [stderr] su: No module specific data is present
Dec 06 14:00:36.969 INFO running `"docker" "inspect" "78c6bad8ff555a2ab6b2503716f55ad77d0eac239b21eed7058d81122afcd2ec"`
Dec 06 14:00:37.282 INFO running `"docker" "rm" "-f" "78c6bad8ff555a2ab6b2503716f55ad77d0eac239b21eed7058d81122afcd2ec"`
Dec 06 14:00:37.684 INFO [stdout] 78c6bad8ff555a2ab6b2503716f55ad77d0eac239b21eed7058d81122afcd2ec
Dec 06 14:00:37.688 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-2/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/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 14:00:38.128 INFO [stdout] 52becb620992151b376b49d7cda9a218acebdcc7e8552953a8a5b3ccaeff4628
Dec 06 14:00:38.130 INFO running `"docker" "start" "-a" "52becb620992151b376b49d7cda9a218acebdcc7e8552953a8a5b3ccaeff4628"`
Dec 06 14:00:39.912 INFO [stderr] usermod: no changes
Dec 06 14:00:39.988 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
Dec 06 14:00:40.008 INFO [stderr]      Running /target/debug/deps/sudoku-51351b864b453b00
Dec 06 14:00:40.014 INFO [stdout] 
Dec 06 14:00:40.014 INFO [stdout] running 0 tests
Dec 06 14:00:40.014 INFO [stdout] 
Dec 06 14:00:40.014 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 06 14:00:40.014 INFO [stdout] 
Dec 06 14:00:40.017 INFO [stderr] su: No module specific data is present
Dec 06 14:00:41.257 INFO running `"docker" "inspect" "52becb620992151b376b49d7cda9a218acebdcc7e8552953a8a5b3ccaeff4628"`
Dec 06 14:00:41.562 INFO running `"docker" "rm" "-f" "52becb620992151b376b49d7cda9a218acebdcc7e8552953a8a5b3ccaeff4628"`
Dec 06 14:00:41.828 INFO [stdout] 52becb620992151b376b49d7cda9a218acebdcc7e8552953a8a5b3ccaeff4628