Convert data to JSON #158

Job	Run time
Collect tests	3s
Test (phpunit_test)	7m 17s
Test (phpunit_bisect_test)	9m 16s
Code coverage (phpunit_test)	7m 18s
Test (behat_test)	7m 28s
Code coverage (phpunit_bisect_test)	8m 58s
Test (behat_bisect_test)	7m 4s
Code coverage (behat_test)	7m 40s
Test (runner_test)	1m 41s
Code coverage (behat_bisect_test)	6m 58s
Test (postjobs_test)	13m 24s
Code coverage (runner_test)	1m 43s
Code coverage (postjobs_test)	13m 40s
	1h 32m 30s

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