[1/39] consts_gen cpp-consts _gen/frontend/consts
FAILED: _gen/frontend/consts.h _gen/frontend/consts.cc 
_bin/shwrap/consts_gen cpp-consts _gen/frontend/consts
Traceback (most recent call last):
  File "/home/uke/oil/frontend/consts_gen.py", line 648, in <module>
    main(sys.argv)
  File "/home/uke/oil/frontend/consts_gen.py", line 418, in main
    version_str = pyutil.GetVersion(loader)
  File "/home/uke/oil/core/pyutil.py", line 170, in GetVersion
    contents = loader.Get('oil-version.txt')
  File "/home/uke/oil/core/pyutil.py", line 108, in Get
    with open(os_path.join(self.root_dir, rel_path)) as f:
IOError: [Errno 2] No such file or directory: '/home/uke/oil/frontend/../oil-version.txt'
[2/39] cxx opt '' _gen/frontend/id_kind.asdl.cc _build/obj/cxx-opt/_gen/frontend/id_kind.asdl.o
[3/39] cxx opt '' cpp/data_lang.cc _build/obj/cxx-opt/cpp/data_lang.o
[4/39] cxx opt '' _gen/display/pretty.asdl.cc _build/obj/cxx-opt/_gen/display/pretty.asdl.o
[5/39] cxx opt '' _gen/core/runtime.asdl.cc _build/obj/cxx-opt/_gen/core/runtime.asdl.o
[6/39] cxx opt '' _gen/core/value.asdl.cc _build/obj/cxx-opt/_gen/core/value.asdl.o
ninja: build stopped: subcommand failed.