[www-scripts] Sphinx Doc Update: ERROR

[www-data via www-scripts]

/opt/tools/sphinx_update.sh: warning: removing stale lock file from PID 19831.
UPDATING llvm SOURCES
Updating '.':
U    include/llvm/IR/DataLayout.h
U    docs/LangRef.rst
D    unittests/IR/DataLayoutTest.cpp
U    unittests/IR/FunctionTest.cpp
U    unittests/IR/CMakeLists.txt
U    unittests/IR/ConstantsTest.cpp
U    lib/IR/Value.cpp
U    lib/IR/ConstantFold.cpp
U    lib/IR/DataLayout.cpp
U    lib/Target/ARM/ARMTargetMachine.cpp
U    lib/Target/X86/X86ISelLowering.cpp
D    lib/Target/AArch64/select-bswap.mir
U    test/Transforms/InstCombine/sadd-with-overflow.ll
A    test/MC/MachO/bad-reloc.s
A    test/CodeGen/PowerPC/branch_selector.ll
U    test/CodeGen/PowerPC/pr39478.ll
A    test/CodeGen/AArch64/usub_sat.ll
A    test/CodeGen/AArch64/uadd_sat.ll
A    test/CodeGen/AArch64/uadd_sat_vec.ll
A    test/CodeGen/AArch64/usub_sat_vec.ll
A    test/CodeGen/Hexagon/packetize-vgather-slot01.mir
U    lib/Target/PowerPC/PPCBranchSelector.cpp
U    lib/Target/Hexagon/HexagonIICHVX.td
U    lib/CodeGen/SelectionDAG/DAGCombiner.cpp
U    lib/Transforms/InstCombine/InstCombineCalls.cpp
U    lib/Transforms/InstCombine/InstCombineInternal.h
U    lib/MC/MachObjectWriter.cpp
Updated to revision 355537.
-- clang project is enabled
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-- Could NOT find LibXml2 (missing:  LIBXML2_LIBRARIES LIBXML2_INCLUDE_DIR) 
-- Native target architecture is X86
-- Threads enabled.
-- Doxygen disabled.
-- Go bindings disabled.
-- Could NOT find OCaml (missing:  OCAMLFIND OCAML_VERSION OCAML_STDLIB_PATH) 
-- Could NOT find OCaml (missing:  OCAMLFIND OCAML_VERSION OCAML_STDLIB_PATH) 
-- OCaml bindings disabled.
-- Found Python module pygments
-- Found Python module pygments.lexers.c_cpp
-- Found Python module yaml
-- LLVM host triple: x86_64-unknown-linux-gnu
-- LLVM default target triple: x86_64-unknown-linux-gnu
-- Building with -fPIC
-- Constructing LLVMBuild project information
-- Linker detection: GNU ld
-- Targeting AArch64
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-- Linker detection: GNU ld
-- Linker detection: GNU ld
-- there is no pre-generated ABI list for the requested libc++ configuration. check-cxx-abilist target is not supported
-- Sphinx enabled.
-- Clang version: 9.0.0
-- Could NOT find Z3 (missing:  Z3_LIBRARIES Z3_INCLUDE_DIR) (Required is at least version "4.7.1")
-- Sphinx enabled.
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-- LLD version: 9.0.0
-- Sphinx enabled.
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-- Failed to find LLVM FileCheck
-- git Version: v0.0.0
-- Version: 0.0.0
-- Performing Test HAVE_GNU_POSIX_REGEX -- failed to compile
-- Performing Test HAVE_POSIX_REGEX -- success
-- Performing Test HAVE_STEADY_CLOCK -- success
-- Configuring done
CMake Error at cmake/modules/AddLLVM.cmake:1376 (add_dependencies):
  The dependency target "clang-headers" of target "check-all" does not exist.
Call Stack (most recent call first):
  CMakeLists.txt:963 (add_lit_target)


CMake Error at tools/clang/tools/extra/clang-tidy/tool/CMakeLists.txt:11 (add_dependencies):
  The dependency target "clang-headers" of target "clang-tidy" does not
  exist.


CMake Error at cmake/modules/AddLLVM.cmake:1376 (add_dependencies):
  The dependency target "clang-headers" of target "check-clang-tools" does
  not exist.
Call Stack (most recent call first):
  cmake/modules/AddLLVM.cmake:1397 (add_lit_target)
  tools/clang/tools/extra/test/CMakeLists.txt:95 (add_lit_testsuite)


-- Generating done
-- Build files have been written to: /opt/sphinx-docs/build/llvm
make[1]: *** [cmake_check_build_system] Error 1
make: *** [docs/CMakeFiles/docs-llvm-html.dir/rule] Error 2