[www-scripts] Sphinx Doc Update: ERROR

[LLVM via www-scripts]

/opt/tools/sphinx_update.sh: warning: removing stale lock file from PID 29939.
UPDATING lld SOURCES
Updating '.':
U    ELF/Driver.cpp
U    test/ELF/build-id.s
Updated to revision 303693.
make: *** No rule to make target `docs-lld-html'.  Stop.