filesystem dead, xfs_repair won't help

Avi Kivity
2017-04-10T09:24:14Z

Today my kernel complained that in memory metadata is corrupt and
asked that I run xfs_repair. But xfs_repair doesn't like the
superblock and isn't able to find a secondary superblock.

Latest Fedora 25 kernel, new Intel NVMe drive (worked for a few weeks
without issue).

Anything I can do to recover the data?