exit with error on failed library install (#2752) #753

Job	Run time
get_variables	1s
release_api_common / test	39s
release_api_auth / test_and_release	2m 46s
release_api_resources / test	1m 30s
release_api_lti / test	1m 14s
release_proxy_auth / test	1m 12s
release_proxy_lti / test	1m 19s
release_proxy_resource / test_and_release	2m 55s
release_proxy_admin / lint_and_create_release	3m 41s
release_www / lint_and_create_release	2m 43s
release_api_contentauthor / composer-validate	7s
release_api_contentauthor / php-cs-fixer	0s
release_api_contentauthor / test_and_release	6m 18s
release_api_contentauthor / phpstan	1m 57s
release_api_common / create_release	2m 22s
release_api_lti / create_release	2m 9s
release_proxy_auth / create_release	2m 22s
release_proxy_lti / create_release	1m 47s
release_api_resources / create_release	2m 0s
building_done	1s
Create Release	0s
auto_deploy (cerpus_test)	6m 12s
	43m 15s

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