mir demo broken with 20151006 stable image

[Shuduo Sang]

Hardware: Lenovo x86 M93p tiny PC
Software: Snappy Ubuntu stable image (20151006)

Reproduce steps:

1, Install latest stable image (20151006) on a X86 computer.
2, bzr branch lp:~mir-team/mir/snappy-packaging
 and make
3, snappy install mir_snap1_amd64.snap

4, $ ./deb2snap -d 15.04 --mir /usr/lib/x86_64-linux-gnu/qt5/examples/quick/demos/clocks/clocks
5, snappy install qtdec*.snap

6, (amd64)ubuntu@localhost:~$ export LC_ALL=C.UTF-8

7, (amd64)ubuntu@localhost:~$ sudo qtdeclarative5-examples-amd64.clocks
Bad system call
ls: cannot access /apps/mir/snap1/debs/usr/lib/*/mir/client-platform: No such file or directory
Loading module: 'libubuntu_application_api_desktop_mirclient.so.2.9.0'
[1444560138.088578] Loader: Loading modules from:
[1444560138.088640] <ERROR> Loader: Failed to load libraries from path: (error was:No such file or directory)
UbuntuClientIntegration: connection to Mir server failed. Check that a Mir server is
running, and the correct socket is being used and is accessible. The shell may have
rejected the incoming connection, so check its log file
Aborted

8, (amd64)ubuntu@localhost:~$ sudo ln -sf /app/mir/IDAcVKWJBgXQ /app/mir/snap1

9, (amd64)ubuntu@localhost:~$ sudo qtdeclarative5-examples-amd64.clocks
Bad system call
Loading module: 'libubuntu_application_api_desktop_mirclient.so.2.9.0'
[1444560829.511425] Loader: Loading modules from: /apps/mir/snap1/debs/usr/lib/x86_64-linux-gnu/mir/client-platform
[1444560829.511647] Loader: Loading module: /apps/mir/snap1/debs/usr/lib/x86_64-linux-gnu/mir/client-platform/mesa.so.2
Fontconfig error: Cannot load default config file
UbuntuWindow - regular geometry
terminate called after throwing an instance of 'boost::exception_detail::clone_impl<boost::exception_detail::error_info_injector<std::runtime_error> >'
  what(): Unexpectedly received fds
Aborted