What I did is
> darcs clone . /tmp/blabla
WARNING: creating a nested repository.
Copying patches, to get lazy repository hit ctrl-C...
darcs: ./darcs_new25356: renamePath:rename: unsupported operation
(Invalid cross-device link)
It seems darcs is trying to rename a file across a file system boundary.
I tracked it down to this patch:
patch 94914596fe8fcfed224f45872aa8851b33d14fc9
Author: 'Ben Franksen <ben.franksen@online.de>'
Date: Thu Oct 26 19:12:33 CEST 2017
* refactored creation of new repositories
Will investigate.
Resolved, I think by
patch 94914596fe8fcfed224f45872aa8851b33d14fc9
Author: 'Ben Franksen <ben.franksen@online.de>'
Date: Thu Oct 26 19:12:33 CEST 2017
* refactored creation of new repositories