Ruby

Merge pull request #2207 from ruby/time-xmlschema #5906

Job	Run time
test (3.1, test)	2m 22s
test (3.2, test)	2m 22s
test (3.3, test)	2m 47s
test (3.4, test)	3m 30s
test (head, test)	2m 27s
test (head, stdlib_test rubocop)	2m 4s
test (3.4, stdlib_test)	1m 57s
test (3.4, test, --enable-frozen-string-literal)	2m 26s
test (3.4, stdlib_test, --enable-frozen-string-literal)	2m 0s
test (3.4, lexer templates compile confirm_lexer confirm_templates)	3m 5s
test (3.4, rubocop validate test_doc build test_generate_stdlib raap)	2m 19s
test (3.4, typecheck_test)	57s
	28m 16s

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