#0  0x00007fe0b7c19624 in dri2_destroy_surface (drv=0x7fe098284610, dpy=0x7fe0982836a0, surf=0x7fe098302790) at ../../../src/egl/drivers/dri2/egl_dri2.c:1370
  [Error: egl_dri2.c was not found in source tree]
#1  0x00007fe0b7c11e85 in eglDestroySurface (dpy=0x7fe0982836a0, surface=<optimized out>) at ../../../src/egl/main/eglapi.c:899
  [Error: eglapi.c was not found in source tree]
#2  0x00007fe0b83da9d1 in __base_dtor  (this=0x7fe0982ac998) at ./src/server/graphics/nested/display.cpp:64
  [Error: display.cpp was not found in source tree]
#3  __base_dtor  (this=0x7fe0982ac930) at ./src/server/graphics/nested/display_buffer.cpp:94
  [Error: display_buffer.cpp was not found in source tree]
#4  0x00007fe0b83b3149 in _M_release (this=0x7fe0982ac920) at /usr/include/c++/6/bits/shared_ptr_base.h:150
  [Error: shared_ptr_base.h was not found in source tree]
#5  __base_dtor () at /usr/include/c++/6/bits/shared_ptr_base.h:662
  [Error: shared_ptr_base.h was not found in source tree]
#6  __base_dtor () at /usr/include/c++/6/bits/shared_ptr_base.h:928
  [Error: shared_ptr_base.h was not found in source tree]
#7  __base_dtor () at /usr/include/c++/6/bits/shared_ptr.h:93
  [Error: shared_ptr.h was not found in source tree]
#8  mir::graphics::nested::detail::DisplaySyncGroup::__base_dtor () at ./src/server/graphics/nested/display.h:94
  [Error: display.h was not found in source tree]
#9  0x00007fe0b83d0729 in _M_release (this=0x7fe0983044f0) at /usr/include/c++/6/bits/shared_ptr_base.h:150
  [Error: shared_ptr_base.h was not found in source tree]
#10 __base_dtor  () at /usr/include/c++/6/bits/shared_ptr_base.h:662
  [Error: shared_ptr_base.h was not found in source tree]
#11 __base_dtor  () at /usr/include/c++/6/bits/shared_ptr_base.h:928
  [Error: shared_ptr_base.h was not found in source tree]
#12 __base_dtor  () at /usr/include/c++/6/bits/shared_ptr.h:93
  [Error: shared_ptr.h was not found in source tree]
#13 __base_dtor  () at /usr/include/c++/6/bits/stl_pair.h:147
  [Error: stl_pair.h was not found in source tree]
#14 destroy () at /usr/include/c++/6/ext/new_allocator.h:124
  [Error: new_allocator.h was not found in source tree]
#15 destroy () at /usr/include/c++/6/bits/alloc_traits.h:467
  [Error: alloc_traits.h was not found in source tree]
#16 std::__detail::_Hashtable_alloc<std::allocator<std::__detail::_Hash_node<std::pair<mir::IntWrapper<mir::frontend::detail::SessionsBufferStreamIdTag, int> const, std::shared_ptr<mir::frontend::ClientBufferTracker> >, true> > >::_M_deallocate_node(std::__detail::_Hash_node<std::pair<mir::IntWrapper<mir::frontend::detail::SessionsBufferStreamIdTag, int> const, std::shared_ptr<mir::frontend::ClientBufferTracker> >, true>*) [clone .isra.503] [clone .lto_priv.981] (__n=0x7fe0982842f0) at /usr/include/c++/6/bits/hashtable_policy.h:1971
  [Error: hashtable_policy.h was not found in source tree]
#17 0x00007fe0b83b45a8 in _M_deallocate_nodes () at /usr/include/c++/6/bits/hashtable_policy.h:1984
  [Error: hashtable_policy.h was not found in source tree]
#18 clear (this=0x7fe098283628) at /usr/include/c++/6/bits/hashtable.h:1901
  [Error: hashtable.h was not found in source tree]
#19 std::_Hashtable<mir::IntWrapper<mir::frontend::detail::SessionsBufferStreamIdTag, int>, std::pair<mir::IntWrapper<mir::frontend::detail::SessionsBufferStreamIdTag, int> const, std::shared_ptr<mir::frontend::ClientBufferTracker> >, std::allocator<std::pair<mir::IntWrapper<mir::frontend::detail::SessionsBufferStreamIdTag, int> const, std::shared_ptr<mir::frontend::ClientBufferTracker> > >, std::__detail::_Select1st, std::equal_to<mir::IntWrapper<mir::frontend::detail::SessionsBufferStreamIdTag, int> >, std::hash<mir::IntWrapper<mir::frontend::detail::SessionsBufferStreamIdTag, int> >, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<true, false, true> >::~_Hashtable() [clone .lto_priv.1300] (this=0x7fe098283628) at /usr/include/c++/6/bits/hashtable.h:1227
  [Error: hashtable.h was not found in source tree]
#20 0x00007fe0b83b4b51 in __base_dtor () at /usr/include/c++/6/bits/unordered_map.h:98
  [Error: unordered_map.h was not found in source tree]
#21 mir::graphics::nested::Display::__base_dtor (this=0x7fe0982835a0) at ./src/server/graphics/nested/display.cpp:204
  [Error: display.cpp was not found in source tree]
#22 0x00007fe0b831f16a in std::_Sp_counted_base<(__gnu_cxx::_Lock_policy)2>::_M_release() [clone .part.14] [clone .lto_priv.687] (this=0x7fe098283590) at /usr/include/c++/6/bits/shared_ptr_base.h:150
  [Error: shared_ptr_base.h was not found in source tree]
#23 0x00007fe0b831fcf1 in __base_dtor  () at /usr/include/c++/6/bits/shared_ptr_base.h:662
  [Error: shared_ptr_base.h was not found in source tree]
#24 __base_dtor  () at /usr/include/c++/6/bits/shared_ptr_base.h:928
  [Error: shared_ptr_base.h was not found in source tree]
#25 __base_dtor  () at /usr/include/c++/6/bits/shared_ptr.h:93
  [Error: shared_ptr.h was not found in source tree]
#26 __base_dtor  (this=0x7fe098003fb0) at ./src/server/display_server.cpp:44
  [Error: display_server.cpp was not found in source tree]
#27 __base_dtor  (this=<optimized out>) at ./src/server/display_server.cpp:200
  [Error: display_server.cpp was not found in source tree]
#28 0x00007fe0b83257a3 in mir::run_mir(mir::ServerConfiguration&, std::function<void (mir::DisplayServer&)>, std::function<void (int)> const&) (config=..., init=..., terminator=...) at ./src/server/run_mir.cpp:98
  [Error: run_mir.cpp was not found in source tree]
#29 0x00007fe0b8333186 in mir::Server::run() (this=0x5614bb1f7150) at ./src/server/server.cpp:453
#30 0x00007fe0b869d33d in MirServerThread::run (this=0x5614bb204370) at ./src/platforms/mirserver/qmirserver_p.cpp:42
  [Error: qmirserver_p.cpp was not found in source tree]
#31 0x00007fe0c1197c68 in QThreadPrivate::start(void*) () from /tmp/apport_sandbox_A0tvSH/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#32 0x00007fe0c056d70a in start_thread (arg=0x7fe0af9ec700) at pthread_create.c:333
  [Error: pthread_create.c was not found in source tree]
#33 0x00007fe0c088c0ff in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105
  [Error: clone.S was not found in source tree]