FreeBSD web build failed on freefall.freebsd.org

[WWW pseudo-user]

/bin/mkdir -p /c/www/build/www/en/doc/en_US.ISO8859-1/books/handbook/vinum
install -c  -o www -g www -m 444 /c/www/build/doc/en_US.ISO8859-1/books/handbook/../../../share/images/books/handbook/vinum/vinum-raid5-org.png /c/www/build/www/en/doc/en_US.ISO8859-1/books/handbook/vinum
/bin/mkdir -p /c/www/build/www/en/doc/en_US.ISO8859-1/books/handbook/vinum
install -c  -o www -g www -m 444 /c/www/build/doc/en_US.ISO8859-1/books/handbook/../../../share/images/books/handbook/vinum/vinum-simple-vol.png /c/www/build/www/en/doc/en_US.ISO8859-1/books/handbook/vinum
/bin/mkdir -p /c/www/build/www/en/doc/en_US.ISO8859-1/books/handbook/vinum
install -c  -o www -g www -m 444 /c/www/build/doc/en_US.ISO8859-1/books/handbook/../../../share/images/books/handbook/vinum/vinum-striped-vol.png /c/www/build/www/en/doc/en_US.ISO8859-1/books/handbook/vinum
/bin/mkdir -p /c/www/build/www/en/doc/en_US.ISO8859-1/books/handbook/vinum
install -c  -o www -g www -m 444 /c/www/build/doc/en_US.ISO8859-1/books/handbook/../../../share/images/books/handbook/vinum/vinum-striped.png /c/www/build/www/en/doc/en_US.ISO8859-1/books/handbook/vinum
/c/www/build/www/en/doc/en_US.ISO8859-1/books/handbook/handbook.html -> /c/www/build/www/en/doc/en_US.ISO8859-1/books/handbook/index.html
===> doc/books/porters-handbook
install -c  -o www -g www -m 444 $(/usr/bin/xargs < HTML.manifest) /c/www/build/www/en/doc/en_US.ISO8859-1/books/porters-handbook
install -c  -o www -g www -m 444 docbook.css /c/www/build/www/en/doc/en_US.ISO8859-1/books/porters-handbook
install -c  -o www -g www -m 444 imagelib/callouts/1.png  /c/www/build/www/en/doc/en_US.ISO8859-1/books/porters-handbook/imagelib/callouts
install -c  -o www -g www -m 444 imagelib/callouts/2.png  /c/www/build/www/en/doc/en_US.ISO8859-1/books/porters-handbook/imagelib/callouts
install -c  -o www -g www -m 444 imagelib/callouts/3.png  /c/www/build/www/en/doc/en_US.ISO8859-1/books/porters-handbook/imagelib/callouts
install -c  -o www -g www -m 444 imagelib/callouts/4.png  /c/www/build/www/en/doc/en_US.ISO8859-1/books/porters-handbook/imagelib/callouts
install -c  -o www -g www -m 444 imagelib/callouts/5.png  /c/www/build/www/en/doc/en_US.ISO8859-1/books/porters-handbook/imagelib/callouts
install -c  -o www -g www -m 444 imagelib/callouts/6.png  /c/www/build/www/en/doc/en_US.ISO8859-1/books/porters-handbook/imagelib/callouts
install -c  -o www -g www -m 444 imagelib/callouts/7.png  /c/www/build/www/en/doc/en_US.ISO8859-1/books/porters-handbook/imagelib/callouts
install -c  -o www -g www -m 444 imagelib/callouts/8.png  /c/www/build/www/en/doc/en_US.ISO8859-1/books/porters-handbook/imagelib/callouts
install -c  -o www -g www -m 444 imagelib/callouts/9.png  /c/www/build/www/en/doc/en_US.ISO8859-1/books/porters-handbook/imagelib/callouts
install -c  -o www -g www -m 444 imagelib/callouts/10.png  /c/www/build/www/en/doc/en_US.ISO8859-1/books/porters-handbook/imagelib/callouts
install -c  -o www -g www -m 444 book.html /c/www/build/www/en/doc/en_US.ISO8859-1/books/porters-handbook
install -c  -o www -g www -m 444 docbook.css /c/www/build/www/en/doc/en_US.ISO8859-1/books/porters-handbook
install -c  -o www -g www -m 444 imagelib/callouts/1.png  /c/www/build/www/en/doc/en_US.ISO8859-1/books/porters-handbook/imagelib/callouts
install -c  -o www -g www -m 444 imagelib/callouts/2.png  /c/www/build/www/en/doc/en_US.ISO8859-1/books/porters-handbook/imagelib/callouts
install -c  -o www -g www -m 444 imagelib/callouts/3.png  /c/www/build/www/en/doc/en_US.ISO8859-1/books/porters-handbook/imagelib/callouts
install -c  -o www -g www -m 444 imagelib/callouts/4.png  /c/www/build/www/en/doc/en_US.ISO8859-1/books/porters-handbook/imagelib/callouts
install -c  -o www -g www -m 444 imagelib/callouts/5.png  /c/www/build/www/en/doc/en_US.ISO8859-1/books/porters-handbook/imagelib/callouts
install -c  -o www -g www -m 444 imagelib/callouts/6.png  /c/www/build/www/en/doc/en_US.ISO8859-1/books/porters-handbook/imagelib/callouts
install -c  -o www -g www -m 444 imagelib/callouts/7.png  /c/www/build/www/en/doc/en_US.ISO8859-1/books/porters-handbook/imagelib/callouts
install -c  -o www -g www -m 444 imagelib/callouts/8.png  /c/www/build/www/en/doc/en_US.ISO8859-1/books/porters-handbook/imagelib/callouts
install -c  -o www -g www -m 444 imagelib/callouts/9.png  /c/www/build/www/en/doc/en_US.ISO8859-1/books/porters-handbook/imagelib/callouts
install -c  -o www -g www -m 444 imagelib/callouts/10.png  /c/www/build/www/en/doc/en_US.ISO8859-1/books/porters-handbook/imagelib/callouts
/c/www/build/www/en/doc/faq -> /c/www/build/www/en/doc/en_US.ISO8859-1/books/faq
/c/www/build/www/en/doc/handbook -> /c/www/build/www/en/doc/en_US.ISO8859-1/books/handbook
/c/www/build/www/en/doc/en -> /c/www/build/www/en/doc/en_US.ISO8859-1
===> relnotes
===> relnotes/CURRENT/share/sgml
make: don't know how to make /c/www/build/relnotes/doc/share/sgml/../../../../share/man/man4/man4.*/*.4. Stop
*** Error code 2

Stop in /c/www/build/relnotes/doc.
*** Error code 1

Stop in /c/www/build/www/en/relnotes.
*** Error code 1

Stop in /c/www/build/www/en.
     1538.25 real      1054.50 user        42.68 sys