Looks like a bug in swrast.

The error was 'BadMatch (invalid parameter attributes)'.
  (Details: serial 801 error_code 8 request_code 72 (core protocol) minor_code 0)
  (Note to programmers: normally, X errors are reported asynchronously;
   that is, you will receive the error a while after causing it.
   To debug your program, run it with the GDK_SYNCHRONIZE environment
   variable to change this behavior. You can then get a meaningful
   backtrace from your debugger if you break on the gdk_x_error() function.)


#5  0x00007ffff43c43fd in _XError (dpy=dpy@entry=0x5555557981a0, rep=rep@entry=0x5555564a4650) at XlibInt.c:1429
#6  0x00007ffff43c1287 in handle_error (dpy=0x5555557981a0, err=0x5555564a4650, in_XReply=<optimized out>) at xcb_io.c:213
#7  0x00007ffff43c1345 in handle_response (dpy=dpy@entry=0x5555557981a0, response=0x5555564a4650, in_XReply=in_XReply@entry=1) at xcb_io.c:325
#8  0x00007ffff43c2300 in _XReply (dpy=dpy@entry=0x5555557981a0, rep=rep@entry=0x7fffffffd2e0, extra=extra@entry=0, discard=discard@entry=1) at xcb_io.c:627
#9  0x00007ffff43bdc3d in XSync (dpy=0x5555557981a0, discard=discard@entry=0) at Sync.c:44
#10 0x00007ffff43bdcdb in _XSyncFunction (dpy=<optimized out>) at Synchro.c:35
#11 0x00007ffff43b70fe in XPutImage (dpy=0x5555557981a0, d=27263047, gc=0x555555dc2840, image=image@entry=0x555555eb1050, req_xoffset=req_xoffset@entry=0, req_yoffset=<optimized out>, req_yoffset@entry=0, x=0, y=0, req_width=704, req_height=384) at PutImage.c:1022
#12 0x00007fffeb2b45d7 in swrastPutImage2 (draw=<optimized out>, op=<optimized out>, x=<optimized out>, y=<optimized out>, w=<optimized out>, h=<optimized out>, stride=0, data=0x7fffb4438040 "", loaderPrivate=0x555555dc2720) at drisw_glx.c:166
#13 0x00007fffeb2b4603 in swrastPutImage (draw=<optimized out>, op=<optimized out>, x=<optimized out>, y=<optimized out>, w=<optimized out>, h=<optimized out>, data=0x7fffb4438040 "", loaderPrivate=0x555555dc2720) at drisw_glx.c:176
#14 0x00007fffdd611ce6 in drisw_put_image (height=<optimized out>, width=<optimized out>, data=<optimized out>, dPriv=<optimized out>) at drisw.c:70
#15 0x00007fffdd611ce6 in drisw_put_image (drawable=<optimized out>, data=<optimized out>, width=<optimized out>, height=<optimized out>) at drisw.c:113
#16 0x00007fffdd6123ae in drisw_swap_buffers (sub_box=0x0, ptex=0x5555562f65d0, dPriv=0x555555eae4e0) at drisw.c:136
#17 0x00007fffdd6123ae in drisw_swap_buffers (ptex=0x5555562f65d0, dPriv=0x555555eae4e0) at drisw.c:153
#18 0x00007fffdd6123ae in drisw_swap_buffers (dPriv=0x555555eae4e0) at drisw.c:180
#19 0x00007fffeb2b40a5 in driswSwapBuffers (pdraw=0x555555dc2720, target_msc=<optimized out>, divisor=<optimized out>, remainder=<optimized out>, flush=<optimized out>)
    at drisw_glx.c:552
#20 0x00007ffff5c0aea7 in _cogl_winsys_onscreen_swap_buffers_with_damage (onscreen=0x555555eae150, rectangles=<optimized out>, n_rectangles=<optimized out>)
    at winsys/cogl-winsys-glx.c:1995
#21 0x00007ffff5bfa29e in cogl_onscreen_swap_buffers_with_damage (onscreen=<optimized out>, rectangles=<optimized out>, n_rectangles=<optimized out>) at ./cogl-onscreen.c:315
#22 0x00007ffff629e195 in clutter_stage_cogl_redraw (stage_window=0x555555c981a0) at cogl/clutter-stage-cogl.c:641
#23 0x00007ffff62a0f4a in clutter_stage_gdk_redraw (stage_window=0x555555c981a0) at gdk/clutter-stage-gdk.c:468
#24 0x00007ffff630da57 in _clutter_stage_do_update (stage=0x555555b2e9c0 [ClutterStage]) at clutter-stage.c:1130
#25 0x00007ffff630da57 in _clutter_stage_do_update (stage=stage@entry=0x555555b2e9c0 [ClutterStage]) at clutter-stage.c:1186
#26 0x00007ffff62a0905 in clutter_master_clock_gdk_update (master_clock=0x5555560ebdc0 [ClutterMasterClockGdk], stage=0x555555b2e9c0 [ClutterStage])
    at gdk/clutter-master-clock-gdk.c:223
#27 0x00007ffff62a0905 in clutter_master_clock_gdk_update (frame_clock=0x5555557c2df0 [GdkFrameClockIdle], master_clock=0x5555560ebdc0 [ClutterMasterClockGdk])
    at gdk/clutter-master-clock-gdk.c:280

seems to be a gtk/cogl interaction problem

gtk creates a 32-bit depth window, cogl use a 24-bit depth visual on it, swrast PutImage 24 onto 32, world ends here.