QGIS » QGIS Application

I've got a UnicodeDecodeError when starting qgis master.
The full error text is below:

Couldn't load plugin 'processing' 

UnicodeDecodeError: 'ascii' codec can't decode byte 0xe2 in position 1333: ordinal not in range(128) 
Traceback (most recent call last):
  File "/usr/share/qgis/python/qgis/utils.py", line 307, in loadPlugin
    __import__(packageName)
  File "/usr/share/qgis/python/qgis/utils.py", line 641, in _import
    mod = _builtin_import(name, globals, locals, fromlist, level)
  File "/usr/share/qgis/python/plugins/processing/__init__.py", line 29, in 
    from processing.tools.general import *              # NOQA
  File "/usr/share/qgis/python/qgis/utils.py", line 641, in _import
    mod = _builtin_import(name, globals, locals, fromlist, level)
  File "/usr/share/qgis/python/plugins/processing/tools/general.py", line 38, in 
    from processing.core.Processing import Processing
  File "/usr/share/qgis/python/qgis/utils.py", line 641, in _import
    mod = _builtin_import(name, globals, locals, fromlist, level)
  File "/usr/share/qgis/python/plugins/processing/core/Processing.py", line 45, in 
    from processing.script.ScriptUtils import ScriptUtils
  File "/usr/share/qgis/python/qgis/utils.py", line 641, in _import
    mod = _builtin_import(name, globals, locals, fromlist, level)
  File "/usr/share/qgis/python/plugins/processing/script/ScriptUtils.py", line 32, in 
    from processing.script.ScriptAlgorithm import ScriptAlgorithm
  File "/usr/share/qgis/python/qgis/utils.py", line 641, in _import
    mod = _builtin_import(name, globals, locals, fromlist, level)
  File "/usr/share/qgis/python/plugins/processing/script/ScriptAlgorithm.py", line 34, in 
    from processing.core.GeoAlgorithm import GeoAlgorithm
  File "/usr/share/qgis/python/qgis/utils.py", line 641, in _import
    mod = _builtin_import(name, globals, locals, fromlist, level)
  File "/usr/share/qgis/python/plugins/processing/core/GeoAlgorithm.py", line 50, in 
    from processing.algs.help import shortHelp
  File "/usr/share/qgis/python/qgis/utils.py", line 641, in _import
    mod = _builtin_import(name, globals, locals, fromlist, level)
  File "/usr/share/qgis/python/plugins/processing/algs/help/__init__.py", line 57, in 
    shortHelp = loadShortHelp()
  File "/usr/share/qgis/python/plugins/processing/algs/help/__init__.py", line 39, in loadShortHelp
    h.update(yaml.load(stream))
  File "/usr/lib/python3.5/site-packages/yaml/__init__.py", line 70, in load
    loader = Loader(stream)
  File "/usr/lib/python3.5/site-packages/yaml/loader.py", line 34, in __init__
    Reader.__init__(self, stream)
  File "/usr/lib/python3.5/site-packages/yaml/reader.py", line 85, in __init__
    self.determine_encoding()
  File "/usr/lib/python3.5/site-packages/yaml/reader.py", line 124, in determine_encoding
    self.update_raw()
  File "/usr/lib/python3.5/site-packages/yaml/reader.py", line 178, in update_raw
    data = self.stream.read(size)
  File "/usr/lib/python3.5/encodings/ascii.py", line 26, in decode
    return codecs.ascii_decode(input, self.errors)[0]
UnicodeDecodeError: 'ascii' codec can't decode byte 0xe2 in position 1333: ordinal not in range(128)

Python version: 3.5.2 (default, Jun 28 2016, 08:46:01) [GCC 6.1.1 20160602] 
QGIS version: 2.99.0-Master Master, 1cd1158 

Python Path:
/usr/share/qgis/python
/home/nextstopsun/.qgis3/python
/home/nextstopsun/.qgis3/python/plugins
/usr/share/qgis/python/plugins
/usr/lib/python35.zip
/usr/lib/python3.5
/usr/lib/python3.5/plat-linux
/usr/lib/python3.5/lib-dynload
/usr/lib/python3.5/site-packages
/home/nextstopsun/.qgis3//python