Invalid cross device-link for icons

When building subsurface (https://github.com/Subsurface-divelog/subsurface) in multipass:

$ SNAPCRAFT_BUILD_ENVIRONMENT=multipass snapcraft
…
Determining the version from the project repo (version-script).
The version has been set to 'v4.8.2-77-g40766db45'
Sorry, an error occurred in Snapcraft.
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No other data than the traceback ('/tmp/tmpqu4km6d3/trace.txt') and the version of snapcraft in use will be sent.
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The trace file:

$ sudo cat /tmp/tmpqu4km6d3/trace.txt
Traceback (most recent call last):
  File "/snap/snapcraft/x1/bin/snapcraft", line 54, in <module>
    snapcraft.cli.__main__.run()
  File "/snap/snapcraft/x1/lib/python3.5/site-packages/click/core.py", line 722, in __call__
    return self.main(*args, **kwargs)
  File "/snap/snapcraft/x1/lib/python3.5/site-packages/click/core.py", line 697, in main
    rv = self.invoke(ctx)
  File "/snap/snapcraft/x1/lib/python3.5/site-packages/click/core.py", line 1066, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "/snap/snapcraft/x1/lib/python3.5/site-packages/click/core.py", line 895, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/snap/snapcraft/x1/lib/python3.5/site-packages/click/core.py", line 535, in invoke
    return callback(*args, **kwargs)
  File "/snap/snapcraft/x1/lib/python3.5/site-packages/snapcraft/cli/lifecycle.py", line 214, in snap
    _execute(steps.PRIME, parts=[], pack_project=True, output=output, **kwargs)
  File "/snap/snapcraft/x1/lib/python3.5/site-packages/snapcraft/cli/lifecycle.py", line 103, in _execute
    lifecycle.execute(step, project_config, parts)
  File "/snap/snapcraft/x1/lib/python3.5/site-packages/snapcraft/internal/lifecycle/_runner.py", line 90, in execute
    executor.run(step, part_names)
  File "/snap/snapcraft/x1/lib/python3.5/site-packages/snapcraft/internal/lifecycle/_runner.py", line 196, in run
    self._create_meta(step, processed_part_names)
  File "/snap/snapcraft/x1/lib/python3.5/site-packages/snapcraft/internal/lifecycle/_runner.py", line 354, in _create_meta
    meta.create_snap_packaging(self.config)
  File "/snap/snapcraft/x1/lib/python3.5/site-packages/snapcraft/internal/meta/_snap_packaging.py", line 118, in create_snap_packaging
    packaging.setup_assets()
  File "/snap/snapcraft/x1/lib/python3.5/site-packages/snapcraft/internal/meta/_snap_packaging.py", line 369, in setup_assets
    os.link(self._config_data["icon"], icon_path)
OSError: [Errno 18] Invalid cross-device link: 'icons/subsurface-icon.svg' -> '/home/multipass/prime/meta/gui/icon.svg'