Test

Display a backtrace if there were any panics in the CI #44

Job	Run time
test (stable, ubuntu-latest, default)	2m 12s
test (stable, ubuntu-latest, xdo)	2m 8s
test (stable, ubuntu-latest, x11rb)	2m 12s
test (stable, windows-latest, default)	2m 17s
test (stable, macos-latest, default)	1m 46s
test (nightly, ubuntu-latest, default)	2m 4s
test (nightly, ubuntu-latest, xdo)	2m 15s
test (nightly, ubuntu-latest, x11rb)	2m 15s
test (nightly, windows-latest, default)	1m 59s
test (nightly, macos-latest, default)	1m 43s
test (1.80.0, ubuntu-latest, default)	2m 3s
test (1.80.0, ubuntu-latest, xdo)	2m 6s
test (1.80.0, ubuntu-latest, x11rb)	2m 12s
test (1.80.0, windows-latest, default)	2m 24s
test (1.80.0, macos-latest, default)	2m 9s
	31m 45s

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