#0  0x00007fc87ab16f28 in fast_validate_len (max_len=<optimized out>, str=<optimized out>) at /build/buildd/glib2.0-2.33.8/./glib/gutf8.c:1582
  [Error: /build/buildd/glib2.0-2.33.8/./glib/gutf8.c was not found in source tree]
#1  g_utf8_validate (str=0x6874756120656854 <Address 0x6874756120656854 out of bounds>, max_len=-1, end=0x0) at /build/buildd/glib2.0-2.33.8/./glib/gutf8.c:1631
  [Error: /build/buildd/glib2.0-2.33.8/./glib/gutf8.c was not found in source tree]
#2  0x00007fc87ab1a767 in g_variant_new_variant (value=0x6874756120656854) at /build/buildd/glib2.0-2.33.8/./glib/gvariant.c:731
  [Error: /build/buildd/glib2.0-2.33.8/./glib/gvariant.c was not found in source tree]
#3  0x00007fc877eb8498 in ?? ()
#4  0x00007fc877eb84c8 in ?? ()
#5  0x000000000000005e in ?? ()
#6  0x00007fc87b7e6d8c in ?? () from /tmp/tmpKt_oA7/usr/lib/x86_64-linux-gnu/gvfs/libgvfscommon.so
#7  0x00007fc87ab1f544 in g_variant_valist_new (str=0x6874756120656854, app=0xffffffffffffffff) at /build/buildd/glib2.0-2.33.8/./glib/gvariant.c:4388
  [Error: /build/buildd/glib2.0-2.33.8/./glib/gvariant.c was not found in source tree]
#8  0x00007fc87ab1f67f in g_variant_valist_new_leaf (app=0x7fc877eb84c8, str=0x7fc877eb8498) at /build/buildd/glib2.0-2.33.8/./glib/gvariant.c:4242
  [Error: /build/buildd/glib2.0-2.33.8/./glib/gvariant.c was not found in source tree]
#9  g_variant_valist_new (str=0x7fc877eb8498, app=0x7fc877eb84c8) at /build/buildd/glib2.0-2.33.8/./glib/gvariant.c:4389
  [Error: /build/buildd/glib2.0-2.33.8/./glib/gvariant.c was not found in source tree]
#10 0x00007fc87ab1fa07 in g_variant_valist_new_leaf (app=0x7fc877eb84c8, str=0x0) at /build/buildd/glib2.0-2.33.8/./glib/gvariant.c:4218
  [Error: /build/buildd/glib2.0-2.33.8/./glib/gvariant.c was not found in source tree]
#11 g_variant_valist_new (str=0x0, app=0x7fc877eb84c8) at /build/buildd/glib2.0-2.33.8/./glib/gvariant.c:4389
  [Error: /build/buildd/glib2.0-2.33.8/./glib/gvariant.c was not found in source tree]
#12 0x0000000000000000 in ?? ()