Merge pull request #291 from kabalin/faildump #621

Job	Run time
SelfUpdate tests (PHAR) (8.3)	30s
Code coverage (codecov)	51s
CI test (make validate)	57s
SelfUpdate tests (PHAR) (8.2)	24s
SelfUpdate tests (PHAR) (8.1)	23s
SelfUpdate tests (PHAR) (8.0)	24s
SelfUpdate tests (PHAR) (7.4)	9s
Build moodle-plugin-ci.phar	26s
Integration tests (8.3, main)	6m 15s
Integration tests (8.2, MOODLE_403_STABLE)	5m 54s
Integration tests (8.2, MOODLE_402_STABLE)	5m 46s
Integration tests (8.1, MOODLE_401_STABLE)	6m 38s
Integration tests (8.0, MOODLE_400_STABLE)	6m 22s
Integration tests (8.0, MOODLE_311_STABLE)	5m 37s
Integration tests (7.4, MOODLE_39_STABLE)	5m 18s
Integration tests (PHAR) (8.3, main)	5m 38s
Integration tests (PHAR) (8.2, MOODLE_403_STABLE)	5m 23s
Integration tests (PHAR) (8.1, MOODLE_402_STABLE)	5m 29s
Integration tests (PHAR) (8.0, MOODLE_401_STABLE)	6m 17s
Integration tests (PHAR) (7.4, MOODLE_400_STABLE)	5m 37s
	1h 14m 18s

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