upstream #1071

Job	Run time
xmlsoft-head-valgrind	18s
xmlsoft-head-valgrind	17s
ruby-head-valgrind (disable)	7m 40s
ruby-head-valgrind (disable)	7m 40s
jruby-head	1m 8s
jruby-head	1m 8s
html5lib-tests	48s
html5lib-tests	48s
ruby-head (ubuntu, enable)	2m 56s
ruby-head (ubuntu, enable)	2m 56s
truffleruby-head (--disable-system-libraries --disable-static)	5m 25s
truffleruby-head (--disable-system-libraries --disable-static)	5m 25s
xmlsoft-head (ubuntu)	26s
xmlsoft-head (ubuntu)	26s
ruby-head (ubuntu, disable)	46s
ruby-head (ubuntu, disable)	46s
truffleruby-head (--disable-system-libraries --enable-static)	2m 21s
truffleruby-head (--disable-system-libraries --enable-static)	3m 8s
xmlsoft-head (windows)	2m 37s
xmlsoft-head (windows)	3m 34s
ruby-head (windows, enable)	3m 27s
ruby-head (windows, enable)	3m 27s
truffleruby-head (--enable-system-libraries)	3m 29s
truffleruby-head (--enable-system-libraries)	3m 29s
xmlsoft-head (macos)	23s
xmlsoft-head (macos)	28s
ruby-head (windows, disable)	5m 42s
ruby-head (windows, disable)	5m 42s
ruby-head (macos, enable)	41s
ruby-head (macos, enable)	41s
ruby-head (macos, disable)	2m 47s
ruby-head (macos, disable)	2m 47s
	1h 23m 36s

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