Dec 06 14:00:12.598 INFO testing Flecheck/Sudoku against try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468 for pr-56514
Dec 06 14:00:12.598 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-4/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/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 14:00:13.044 INFO [stdout] 187f02fb00bf92f63d140f02d40c054cbd5c0bbbc1110cd33bcec41772dcdf89
Dec 06 14:00:13.046 INFO running `"docker" "start" "-a" "187f02fb00bf92f63d140f02d40c054cbd5c0bbbc1110cd33bcec41772dcdf89"`
Dec 06 14:00:14.499 INFO [stderr] usermod: no changes
Dec 06 14:00:14.566 INFO [stderr]    Compiling indexmap v0.4.1
Dec 06 14:00:15.857 INFO [stderr]    Compiling priority-queue v0.5.1
Dec 06 14:00:16.385 INFO [stderr]    Compiling sudoku v0.1.0 (/source)
Dec 06 14:00:16.828 INFO [stderr] warning: unused import: `std::time::Duration`
Dec 06 14:00:16.828 INFO [stderr]   --> src/main.rs:16:5
Dec 06 14:00:16.828 INFO [stderr]    |
Dec 06 14:00:16.828 INFO [stderr] 16 | use std::time::Duration;
Dec 06 14:00:16.828 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^
Dec 06 14:00:16.828 INFO [stderr]    |
Dec 06 14:00:16.828 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 06 14:00:16.828 INFO [stderr] 
Dec 06 14:00:16.828 INFO [stderr] warning: unused import: `std::time::Instant`
Dec 06 14:00:16.828 INFO [stderr]   --> src/main.rs:17:5
Dec 06 14:00:16.828 INFO [stderr]    |
Dec 06 14:00:16.828 INFO [stderr] 17 | use std::time::Instant;
Dec 06 14:00:16.828 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^
Dec 06 14:00:16.828 INFO [stderr] 
Dec 06 14:00:17.089 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 14:00:17.089 INFO [stderr]   --> src/main.rs:43:9
Dec 06 14:00:17.089 INFO [stderr]    |
Dec 06 14:00:17.089 INFO [stderr] 43 |         writeln!(stdout, "{}", res);
Dec 06 14:00:17.089 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 14:00:17.089 INFO [stderr]    |
Dec 06 14:00:17.089 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 06 14:00:17.089 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 14:00:17.089 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 14:00:17.089 INFO [stderr] 
Dec 06 14:00:19.624 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.09s
Dec 06 14:00:19.625 INFO [stderr] su: No module specific data is present
Dec 06 14:00:20.545 INFO running `"docker" "inspect" "187f02fb00bf92f63d140f02d40c054cbd5c0bbbc1110cd33bcec41772dcdf89"`
Dec 06 14:00:20.950 INFO running `"docker" "rm" "-f" "187f02fb00bf92f63d140f02d40c054cbd5c0bbbc1110cd33bcec41772dcdf89"`
Dec 06 14:00:21.299 INFO [stdout] 187f02fb00bf92f63d140f02d40c054cbd5c0bbbc1110cd33bcec41772dcdf89
Dec 06 14:00:21.302 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-4/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/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 14:00:21.790 INFO [stdout] 3c92ba87488d13ba9861471dd52ce7438710383c820a1459cfdbdce53f0aacf7
Dec 06 14:00:21.792 INFO running `"docker" "start" "-a" "3c92ba87488d13ba9861471dd52ce7438710383c820a1459cfdbdce53f0aacf7"`
Dec 06 14:00:23.617 INFO [stderr] usermod: no changes
Dec 06 14:00:23.714 INFO [stderr]    Compiling sudoku v0.1.0 (/source)
Dec 06 14:00:24.288 INFO [stderr] warning: unused import: `std::time::Duration`
Dec 06 14:00:24.288 INFO [stderr]   --> src/main.rs:16:5
Dec 06 14:00:24.288 INFO [stderr]    |
Dec 06 14:00:24.288 INFO [stderr] 16 | use std::time::Duration;
Dec 06 14:00:24.288 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^
Dec 06 14:00:24.288 INFO [stderr]    |
Dec 06 14:00:24.288 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 06 14:00:24.288 INFO [stderr] 
Dec 06 14:00:24.288 INFO [stderr] warning: unused import: `std::time::Instant`
Dec 06 14:00:24.288 INFO [stderr]   --> src/main.rs:17:5
Dec 06 14:00:24.288 INFO [stderr]    |
Dec 06 14:00:24.288 INFO [stderr] 17 | use std::time::Instant;
Dec 06 14:00:24.288 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^
Dec 06 14:00:24.288 INFO [stderr] 
Dec 06 14:00:24.557 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 14:00:24.557 INFO [stderr]   --> src/main.rs:43:9
Dec 06 14:00:24.557 INFO [stderr]    |
Dec 06 14:00:24.557 INFO [stderr] 43 |         writeln!(stdout, "{}", res);
Dec 06 14:00:24.557 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 14:00:24.557 INFO [stderr]    |
Dec 06 14:00:24.557 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 06 14:00:24.557 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 14:00:24.557 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 14:00:24.557 INFO [stderr] 
Dec 06 14:00:24.926 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.28s
Dec 06 14:00:24.932 INFO [stderr] su: No module specific data is present
Dec 06 14:00:26.127 INFO running `"docker" "inspect" "3c92ba87488d13ba9861471dd52ce7438710383c820a1459cfdbdce53f0aacf7"`
Dec 06 14:00:26.448 INFO running `"docker" "rm" "-f" "3c92ba87488d13ba9861471dd52ce7438710383c820a1459cfdbdce53f0aacf7"`
Dec 06 14:00:26.756 INFO [stdout] 3c92ba87488d13ba9861471dd52ce7438710383c820a1459cfdbdce53f0aacf7
Dec 06 14:00:26.758 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-4/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/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 14:00:27.132 INFO [stdout] f9216b91f76cf9abc7a755d12880126d01cb990bb35f54fe5f9ca3205483bcbe
Dec 06 14:00:27.136 INFO running `"docker" "start" "-a" "f9216b91f76cf9abc7a755d12880126d01cb990bb35f54fe5f9ca3205483bcbe"`
Dec 06 14:00:28.428 INFO [stderr] usermod: no changes
Dec 06 14:00:28.536 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.06s
Dec 06 14:00:28.545 INFO [stderr]      Running /target/debug/deps/sudoku-f6d252949ad66d00
Dec 06 14:00:28.558 INFO [stdout] 
Dec 06 14:00:28.558 INFO [stdout] running 0 tests
Dec 06 14:00:28.558 INFO [stdout] 
Dec 06 14:00:28.558 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 06 14:00:28.558 INFO [stdout] 
Dec 06 14:00:28.564 INFO [stderr] su: No module specific data is present
Dec 06 14:00:29.549 INFO running `"docker" "inspect" "f9216b91f76cf9abc7a755d12880126d01cb990bb35f54fe5f9ca3205483bcbe"`
Dec 06 14:00:29.932 INFO running `"docker" "rm" "-f" "f9216b91f76cf9abc7a755d12880126d01cb990bb35f54fe5f9ca3205483bcbe"`
Dec 06 14:00:30.240 INFO [stdout] f9216b91f76cf9abc7a755d12880126d01cb990bb35f54fe5f9ca3205483bcbe