20-Aug-2018 13:31:16	invoke-rc.d: could not determine current runlevel
20-Aug-2018 13:31:16	invoke-rc.d: policy-rc.d denied execution of start.
20-Aug-2018 13:31:16	Setting up dh-python (2.20151103ubuntu1.1) ...
20-Aug-2018 13:31:16	Setting up odbcinst (2.3.1-4.1) ...
20-Aug-2018 13:31:16	Processing triggers for systemd (229-4ubuntu21.2) ...
20-Aug-2018 13:31:16	Processing triggers for libc-bin (2.23-0ubuntu10) ...
20-Aug-2018 13:31:17	Processing triggers for sgml-base (1.26+nmu4ubuntu1) ...
20-Aug-2018 13:31:17	Processing triggers for dbus (1.10.6-1ubuntu3.3) ...
20-Aug-2018 13:31:18	Official stable UbuntuGIS packages.
20-Aug-2018 13:31:18
20-Aug-2018 13:31:18
20-Aug-2018 13:31:18	More info: https://launchpad.net/~ubuntugis/+archive/ubuntu/ppa
20-Aug-2018 13:31:18	gpg: keyring `/tmp/tmpn100ai70/secring.gpg' created
20-Aug-2018 13:31:18	gpg: keyring `/tmp/tmpn100ai70/pubring.gpg' created
20-Aug-2018 13:31:18	gpg: requesting key 314DF160 from hkp server keyserver.ubuntu.com
20-Aug-2018 13:31:18	gpgkeys: key 6B827C12C2D425E227EDCA75089EBE08314DF160 can't be retrieved
20-Aug-2018 13:31:18	gpg: no valid OpenPGP data found.
20-Aug-2018 13:31:18	gpg: Total number processed: 0
20-Aug-2018 13:31:18	gpg: keyserver communications error: keyserver helper general error
20-Aug-2018 13:31:18	gpg: keyserver communications error: unknown pubkey algorithm
20-Aug-2018 13:31:18	gpg: keyserver receive failed: unknown pubkey algorithm
20-Aug-2018 13:31:18	Failed to add key.
20-Aug-2018 13:31:19	The command '/bin/sh -c apt-get update && apt-get -y install python-dev     python-pip     python-dev     build-essential     python-numpy     gdal-bin     python-gdal     python-scipy     software-properties-common &&     apt-add-repository ppa:ubuntugis/ppa &&     pip install --upgrade pip==9.0.3 &&     pip install -r /home/clowder/requirements.txt &&     rm -rf /var/lib/apt/lists/*' returned a non-zero code: 1
20-Aug-2018 13:31:19	FAILED build of ./metadata.geotiff/Dockerfile
20-Aug-2018 13:31:19	docker.sh: 57: exit: Illegal number: -1