FreeBSD web build failed on build-web.ysv.freebsd.org

[User Www-data]

===> doc/articles/contributors (all)
--- article.parsed.xml ---
env XML_CATALOG_FILES="file:///usr/local/www/build/head/en_US.ISO8859-1/articles/contributors/catalog-cwd.xml  file:///usr/local/www/build/head/en_US.ISO8859-1/share/xml/catalog.xml  file:///usr/local/www/build/head/share/xml/catalog.xml  file:///usr/local/share/xml/catalog" /usr/local/bin/xmllint --nonet --noent --valid --dropdtd --xinclude /usr/local/www/build/head/en_US.ISO8859-1/articles/contributors/article.xml > article.parsed.xml.tmp
/usr/local/www/build/head/en_US.ISO8859-1/articles/contributors/contrib.committers.xml:1369: parser error : Entity 'a.ericbsd.email' not defined
    <para>&a.ericbsd.email;</para>
                           ^
/usr/local/www/build/head/en_US.ISO8859-1/articles/contributors/contrib.committers.xml:1524: parser error : chunk is not well balanced

^
/usr/local/www/build/head/en_US.ISO8859-1/articles/contributors/article.xml:366: parser error : Failure to process entity contrib.committers
    &contrib.committers;
                        ^
/usr/local/www/build/head/en_US.ISO8859-1/articles/contributors/article.xml:366: parser error : Entity 'contrib.committers' not defined
    &contrib.committers;
                        ^
*** [article.parsed.xml] Error code 1

make[4]: stopped in /usr/local/www/build/head/en_US.ISO8859-1/articles/contributors
1 error

make[4]: stopped in /usr/local/www/build/head/en_US.ISO8859-1/articles/contributors
*** [all] Error code 2

make[3]: stopped in /usr/local/www/build/head/en_US.ISO8859-1/articles
1 error

make[3]: stopped in /usr/local/www/build/head/en_US.ISO8859-1/articles
*** [all] Error code 2

make[2]: stopped in /usr/local/www/build/head/en_US.ISO8859-1
1 error

make[2]: stopped in /usr/local/www/build/head/en_US.ISO8859-1
*** [all-all] Error code 2

make[1]: stopped in /usr/local/www/build/head/en_US.ISO8859-1/htdocs/doc
1 error

make[1]: stopped in /usr/local/www/build/head/en_US.ISO8859-1/htdocs/doc
*** [all] Error code 2

make: stopped in /usr/local/www/build/head/en_US.ISO8859-1/htdocs
1 error

make: stopped in /usr/local/www/build/head/en_US.ISO8859-1/htdocs
       34.97 real        44.39 user        15.43 sys

latestrevision.timestamp "2018-03-29 16:21:13" 
latestrevision.committer "gjb"		
latestrevision.number "51522"