This bug was fixed in the package mir - 0.1.6+14.04.20140310-0ubuntu1

---------------
mir (0.1.6+14.04.20140310-0ubuntu1) trusty; urgency=medium

  [ Kevin Gunn ]
  * Cherry-picked from future release 0.1.7:
    - Enhancement: options: Make it easier to customize DefaultConfiguration
    - Bug fix: Don't pass a parameter to bash's popd command. It doesn't expect
      one and will return an error from cross-compile-chroot.sh. (LP: #1287600)
  * New upstream release 0.1.6 (https://launchpad.net/mir/+milestone/0.1.6)
    - mirserver ABI bumped to 16.
    - Server API changes:
      . Report classes have moved to new namespaces/components. Please
        consult the server headers.
      . General clean-ups and virtual function changes affecting the ABI
        (a rebuild is required for all shells).
    - mirclient ABI unchanged, still at 7. Clients do not need rebuilding.
    - Add new feature: Screen recording ("screencasting") as demonstrated by
      the new mir-util "mirscreencast".
    - debian: Provide platform packages managed with dpkg alternatives.
    - Add new valgrind suppressions (mostly for armhf right now)
    - tools: Add new libmirclientplatform.so to install_on_android.sh.
    - Add "mir_demo_standalone_render_overlays", which is a free-standing
      example of overlay support.
    - Proper DisplayConfiguration for the AndroidDisplay to be better
      prepared for multi-monitor Android.
    - Commenced/continued simplifying the surface class hierarchy: BasicSurface
      has now absorbed SurfaceData.
    - Dynamically load the client platform library.
    - Bugs fixed:
      . Exceptions thrown from within compositing threads were untraceable,
        resulting in a bunch of undebuggable crash reports (LP: #1237332)
      . Ensure we close drm device file descriptors on exec. (LP: #1284081)
      . nested render_surfaces fails on N4 [std::exception::what: Failed to
        compile vertex shader:] (LP: #1284597)
      . examples: correct "fullscreen-surfaces" option. (LP: #1284554)
      . Fix mutex data race reported by helgrind in integration test:
        SwapperSwappingStress (LP: #1282886)
      . scene: Return null snapshots for sessions without surfaces
        (LP: #1281728)
      . tests: Address some raciness in
        MesaDisplayTest.drm_device_change_event_triggers_handler.
        (LP: #1283085)
      . tests: Suppress spurious memory errors occuring when running the
        unit tests on armhf with valgrind. (LP: #1279438)
      . Mir shows an old frame on client startup (for Mesa GL clients)
        (LP: #1281938)
      . tests: Add expectation to validate second SessionAuthorizer method
        is called wit correct parameter. (LP: #1218436)
      . Set field "current_format" when sending a display config to the
        server. (LP: #1277343)
      . Fix crash in android devices by working around a subtle threading
        bug, use a dummy thead_local array to push the gl/egl context TLS
        into a region where the future wait code does not overwrite it.
        (LP: #1280086)
      . compositor: calling SwitchingBundle::force_requests_to_complete()
        can be a no-op when there are no requests. (LP: #1281145)
      . tests: Don't emit an "add" uevent manually when adding a device
        (LP: #1281146)
      . config: reduce size of default RPC thread pool. (LP: #1233001)
      . Clients freeze on startup if 10 or more are already running
        (LP: #1267323)
      . Fix Nexus 10 leaking FDs in the hwc prepare/set loop. (LP: #1278658)
      . Parallelize page flipping with rendering of the next frame, fixing
        stuttering observed in multi-monitor clone mode (LP: #1213801)
      . Ubuntu trusty update "glm 0.9.5.1-1" broke Mir builds. Work around the
        change. (LP: #1285955)
      . Screencast feature by compositing to offscreen buffer (LP: #1207312)

  [ Ubuntu daily release ]
  * New rebuild forced
 -- Ubuntu daily release <email address hidden>   Mon, 10 Mar 2014 19:28:46 +0000