upstream #1065

Job	Run time
xmlsoft-head (ubuntu)	3m 59s
ruby-head (ubuntu, enable)	2m 54s
ruby-head-valgrind (disable)	7m 36s
xmlsoft-head (windows)	11m 27s
ruby-head (ubuntu, disable)	50s
html5lib-tests	53s
ruby-head (windows, enable)	3m 56s
xmlsoft-head (macos)	3m 37s
ruby-head (windows, disable)	5m 32s
ruby-head (macos, enable)	36s
truffleruby-head (--disable-system-libraries --disable-static)	5m 32s
jruby-head	1m 10s
xmlsoft-head-valgrind	6m 28s
ruby-head (macos, disable)	3m 44s
truffleruby-head (--disable-system-libraries --enable-static)	3m 8s
truffleruby-head (--enable-system-libraries)	2m 48s
	1h 4m 10s

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