If you `snap try prime` in the snapcraft directory when container builds are enabled, a cp traceback is raised as the code is expecting a file copy instead of a directory, we should error out correctly (unsupported) and/or support it.
Making snapcraft_x4.snap user-accessible
cp: -r not specified; omitting directory '/var/lib/snapd/snaps/snapcraft_x4.snap'
Stopping local:snapcraft-hooks
Traceback (most recent call last):
File "/snap/snapcraft/x4/bin/snapcraft", line 11, in <module>
load_entry_point('snapcraft==2.34', 'console_scripts', 'snapcraft')()
File "/snap/snapcraft/x4/usr/lib/python3.6/site-packages/pkg_resources/__init__.py", line 565, in load_entry_point
return get_distribution(dist).load_entry_point(group, name)
File "/snap/snapcraft/x4/usr/lib/python3.6/site-packages/pkg_resources/__init__.py", line 2631, in load_entry_point
return ep.load()
File "/snap/snapcraft/x4/usr/lib/python3.6/site-packages/pkg_resources/__init__.py", line 2291, in load
return self.resolve()
File "/snap/snapcraft/x4/usr/lib/python3.6/site-packages/pkg_resources/__init__.py", line 2297, in resolve
module = __import__(self.module_name, fromlist=['__name__'], level=0)
File "/snap/snapcraft/x4/lib/python3.6/site-packages/snapcraft/cli/__main__.py", line 19, in <module>
run(prog_name='snapcraft')
File "/snap/snapcraft/x4/lib/python3.6/site-packages/click/core.py", line 722, in __call__
return self.main(*args, **kwargs)
File "/snap/snapcraft/x4/lib/python3.6/site-packages/click/core.py", line 697, in main
rv = self.invoke(ctx)
File "/snap/snapcraft/x4/lib/python3.6/site-packages/click/core.py", line 1043, in invoke
return Command.invoke(self, ctx)
File "/snap/snapcraft/x4/lib/python3.6/site-packages/click/core.py", line 895, in invoke
return ctx.invoke(self.callback, **ctx.params)
File "/snap/snapcraft/x4/lib/python3.6/site-packages/click/core.py", line 535, in invoke
return callback(*args, **kwargs)
File "/snap/snapcraft/x4/lib/python3.6/site-packages/click/decorators.py", line 17, in new_func
return f(get_current_context(), *args, **kwargs)
File "/snap/snapcraft/x4/lib/python3.6/site-packages/snapcraft/cli/__init__.py", line 118, in run
ctx.forward(lifecyclecli.commands['snap'])
File "/snap/snapcraft/x4/lib/python3.6/site-packages/click/core.py", line 553, in forward
return self.invoke(cmd, **kwargs)
File "/snap/snapcraft/x4/lib/python3.6/site-packages/click/core.py", line 535, in invoke
return callback(*args, **kwargs)
File "/snap/snapcraft/x4/lib/python3.6/site-packages/snapcraft/cli/lifecycle.py", line 137, in snap
container_config, output, directory)
File "/snap/snapcraft/x4/lib/python3.6/site-packages/snapcraft/internal/lifecycle/_containers.py", line 51, in containerbuild
metadata=config.get_metadata()).execute(step, args)
File "/snap/snapcraft/x4/lib/python3.6/site-packages/snapcraft/internal/lxd/_containerbuild.py", line 131, in execute
self._inject_snapcraft()
File "/snap/snapcraft/x4/lib/python3.6/site-packages/snapcraft/internal/lxd/_containerbuild.py", line 203, in _inject_snapcraft
self._inject_snap('snapcraft')
File "/snap/snapcraft/x4/lib/python3.6/site-packages/snapcraft/internal/lxd/_containerbuild.py", line 246, in _inject_snap
subprocess.check_call(['sudo', 'cp', installed, filepath])
File "/snap/snapcraft/x4/usr/lib/python3.6/subprocess.py", line 291, in check_call
raise CalledProcessError(retcode, cmd)
subprocess.CalledProcessError: Command '['sudo', 'cp', '/var/lib/snapd/snaps/snapcraft_x4.snap', '/home/sergiusens/snap/lxd/common/snapcraftflm_wnwd/snapcraft_x4.snap']' returned non-zero exit status 1.
