running 1 test test counter_regression_after_empty_poll_is_detected ... FAILED failures: failures: counter_regression_after_empty_poll_is_detected test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 20 filtered out; finished in 0.00s Compiling turkos-os-clock v0.1.0 (/reports/os-implementation/K941-K959-preparation-T8L8pi/mutant-counter-regression/os-clock) Finished `test` profile [unoptimized + debuginfo] target(s) in 0.31s Running tests/clock.rs (reports/os-implementation/K941-K959-preparation-T8L8pi/mutant-counter-regression/target/debug/build/turkos-os-clock/7e205e95b363aa97/out/clock-7e205e95b363aa97) thread 'counter_regression_after_empty_poll_is_detected' (41397251) panicked at tests/clock.rs:361:32: called `Result::unwrap_err()` on an `Ok` value: None note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace error: test failed, to rerun pass `--test clock`