dev/automated_tests/flutter_test/ticker_expectation.txt

[^═]*(this line contains the test framework's output with the clock and so forth)?
══╡ EXCEPTION CAUGHT BY SCHEDULER LIBRARY ╞═════════════════════════════════════════════════════════
The following message was thrown:
An animation is still running even after the widget tree was disposed.

There was one transient callback left. The stack trace for when it was registered is as follows:
── callback 2 ──
<<skip until matching line>>
#[0-9]+      main.+ \(.+/flutter/dev/automated_tests/flutter_test/ticker_test\.dart:[0-9]+:[0-9]+\)
<<skip until matching line>>
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.*..:.. \+0 -1: - Does flutter_test catch leaking tickers\? \[E\]
  Test failed\. See exception logs above\.
  The test description was: Does flutter_test catch leaking tickers\?
 *
.*..:.. \+0 -1: Some tests failed\. *