Step 6 : RUN mkdir -p /usr/src/lxc      && curl -sSL https://linuxcontainers.org/downloads/lxc/lxc-${LXC_VERSION}.tar.gz | tar -v -C /usr/src/lxc/ -xz --strip-components=1
 ---> Running in 1ffa14bb1467

gzip: stdin: not in gzip format
tar: Child returned status 1
tar: Error is not recoverable: exiting now
INFO[0270] The command [/bin/sh -c mkdir -p /usr/src/lxc        && curl -sSL https://linuxcontainers.org/downloads/lxc/lxc-${LXC_VERSION}.tar.gz | tar -v -C /usr/src/lxc/ -xz --strip-components=1] returned a non-zero code: 2