buildbot_1   | error while parsing config file:
buildbot_1   | Traceback (most recent call last):
buildbot_1   |   File "/usr/lib/python3.6/site-packages/twisted/internet/defer.py", line 151, in maybeDeferred
buildbot_1   |     result = f(*args, **kw)
buildbot_1   |   File "/usr/lib/python3.6/site-packages/buildbot/scripts/upgrade_master.py", line 130, in upgradeMaster
buildbot_1   |     master_cfg = base.loadConfig(config, configFile)
buildbot_1   |   File "/usr/lib/python3.6/site-packages/buildbot/scripts/base.py", line 111, in loadConfig
buildbot_1   |     config['basedir'], configFileName).loadConfig()
buildbot_1   |   File "/usr/lib/python3.6/site-packages/buildbot/config.py", line 170, in loadConfig
buildbot_1   |     self.basedir, self.configFileName)
buildbot_1   | --- <exception caught here> ---
buildbot_1   |   File "/usr/lib/python3.6/site-packages/buildbot/config.py", line 128, in loadConfigDict
buildbot_1   |     execfile(filename, localDict)
buildbot_1   |   File "/usr/lib/python3.6/site-packages/twisted/python/compat.py", line 247, in execfile
buildbot_1   |     exec(code, globals, locals)
buildbot_1   |   File "/var/lib/buildbot/master.cfg", line 14, in <module>
buildbot_1   |     from builders import builders
buildbot_1   |   File "/var/lib/buildbot/builders.py", line 42, in <module>
buildbot_1   |     builders.extend(module.generate(None))
buildbot_1   |   File "/var/lib/buildbot/builder_notebook.py", line 7, in generate
buildbot_1   |     pr_factory = createNotebookFactory(branch='develop', is_pr=True)
buildbot_1   |   File "/var/lib/buildbot/common.py", line 173, in createNotebookFactory
buildbot_1   |     f.addStep(getNotebookSteps(is_release=False))
buildbot_1   |   File "/usr/lib/python3.6/site-packages/buildbot/process/factory.py", line 81, in addStep
buildbot_1   |     self.steps.append(interfaces.IBuildStepFactory(step))
buildbot_1   | builtins.TypeError: ('Could not adapt', [MakeDirectory(dir='build/notebooks', name='Create notebooks directory'), MakeDirectory(dir='build/notebooks', name='Create notebooks directory'), F$leDownload(mastersrc='~/masters/shogun/buildbot/scripts/generate-notebooks.sh', workerdest='generate-notebooks.sh', mode=493), FileDownload(mastersrc='~/masters/shogun/buildbot/scripts/extract_image_from$html.py', workerdest='extract_image_from_html.py', mode=493), ShellCommand(command=['/bin/bash', '-c', './generate-notebooks.sh $PWD/doc/ipython-notebooks 5 $PWD/notebooks'], name='notebooks', descriptio$='compiling notebooks', descriptionDone='notebooks compiled', timeout=7200, workdir='build', haltOnFailure=False, flunkOnFailure=True), MasterShellCommand(command=['rm', '-rf', '/home/shogun/static/noteb$ok/nightly'], hideStepIf=True, haltOnFailure=False, flunkOnFailure=False), DirectoryUpload(workersrc='notebooks', masterdest='/home/shogun/static/notebook/nightly', url='http://www.shogun-toolbox.org/not$book/nightly', compress='bz2'), MasterShellCommand(command=['chmod', '-R', '755', '/home/shogun/static/notebook/nightly'], hideStepIf=True)], <InterfaceClass buildbot.interfaces.IBuildStepFactory>)