The python3 plugin fails on my xenial host during the parts phase. tar: ./usr/bin/python3.5: Cannot hard link to ‘./usr/bin/python3.5m’: From snapcraft.yaml parts: find-text: plugin: python3 source: src $ snapcraft clean $ snapcraft snap ... tar: ./usr/bin/python3.5: Cannot hard link to ‘./usr/bin/python3.5m’: Operation not permitted tar: Exiting with failure status due to previous errors dpkg-deb: error: subprocess tar returned error exit status 2 /home/curtis/Work/find-text/parts/find-text/ubuntu/download/python3.5-minimal_3.5.2-2~16.01_amd64.deb $ ls /home/curtis/Work/find-text/parts/find-text/install/usr/bin/python* python3.5m-config python3-config python3m python3m-config python3.5-config python3.5m This is repeatable with the dcos-cli plugin from https://github.com/ubuntu/snappy-plaype This issue was first reported at https://github.com/ubuntu/snappy-playpen/issues/232