$ sudo snap install --dangerous lxd_0+git.fc4c288-dirty_amd64.snap
2017-09-11T09:46:21Z INFO snap "lxd" has bad plugs or slots: lxd (lxd slots are reserved for the core snap)
error: cannot perform the following tasks:
- Setup snap "lxd" (unset) security profiles (cannot setup seccomp for snap "lxd": error: cannot parse line: cannot parse token "u:root" (line "chown - u:root g:root"))
- Setup snap "lxd" (unset) security profiles (error: cannot parse line: cannot parse token "u:root" (line "chown - u:root g:root"))