Bug#1077800: mutter: flaky test wayland-unit on ppc64el: assertion failed (rect.x == 220): (270 == 220)

[Simon McVittie]

Source: mutter
Version: 49.1-1
Severity: important
Tags: experimental ftbfs
User: debian-ci at lists.debian.org
Usertags: flaky

The build-time tests for mutter 49.1-1 failed twice on ppc64el, then 
succeeded on the third try. Both failures were in the test 
"mutter:core+mutter/wayland / wayland-unit", specifically the 
"/wayland/toplevel/invalid-geometry/basic" test-case:

># Start of invalid-geometry tests
>**
>mutter-wayland-unit-test:ERROR:../src/tests/wayland-unit-tests.c:826:toplevel_invalid_geometry_basic: assertion failed (rect.x == 220): (270 == 220)

Please consider other failures to be out-of-scope here unless there is 
evidence that they share a root cause.

As with many other intermittent test failures, I suspect a timing issue.

    smcv