As https://circleci.com/gh/harfbuzz/harfbuzz/140481
Traceback (most recent call last):
File "./gen-hb-version.py", line 14, in <module>
output_file.write (input_file.read ()
File "/usr/lib/python3.4/encodings/ascii.py", line 26, in decode
return codecs.ascii_decode(input, self.errors)[0]
UnicodeDecodeError: 'ascii' codec can't decode byte 0xc2 in position 16: ordinal not in range(128)