[www-scripts] Sphinx Doc Update: ERROR

[LLVM via www-scripts]

/opt/tools/sphinx_update.sh: warning: removing stale lock file from PID 9561.
UPDATING lld SOURCES
Updating '.':
U    ELF/LinkerScript.h
U    ELF/LinkerScript.cpp
Updated to revision 302679.
make: *** No rule to make target `docs-lld-html'.  Stop.