Hi Guixers, Looks like syncthing-gtk broke sometime just before/during/after the big core-updates-frozen merge. It was working for me at least before the merge, but I was slightly out of date. I don't think it is the syncthing-gtk package itself (no changes other than input style change), but it fails due to librsvg or how it uses it. Not sure what has changed here to cause this.
Running with RUST_BACKTRACE=full syncthing-gtk (as suggested by syncthing-gtk after shorter error messages), the output is: I StatusIcon Using backend StatusIconGTK3 (primary) I App I App Syncthing-GTK started and running in notification area (.syncthing-gtk-real:3861): Gdk-CRITICAL **: 17:05:06.225: gdk_window_thaw_toplevel_updates: assertion 'window->update_and_descendants_freeze_count > 0' failed thread '<unnamed>' panicked at 'Type RsvgHandle has already been registered', /tmp/guix-build-librsvg-2.50.7.drv-0/librsvg-2.50.7/guix-vendor/rust-glib-0.9.3.tar.gz/src/subclass/types.rs:485:13 stack backtrace: 0: 0x7fb2b7bab67d - <unknown> 1: 0x7fb2b7c6969c - <unknown> 2: 0x7fb2b7b9ff75 - <unknown> 3: 0x7fb2b7ba591b - <unknown> 4: 0x7fb2b7ba54fb - <unknown> 5: 0x7fb2b7ba605e - <unknown> 6: 0x7fb2b7bac317 - <unknown> 7: 0x7fb2b7bab7bc - <unknown> 8: 0x7fb2b7ba5b72 - <unknown> 9: 0x7fb2b772e70b - <unknown> 10: 0x7fb2b7741cbb - <unknown> 11: 0x7fb2b772e538 - <unknown> 12: 0x7fb2b7733351 - rsvg_rust_handle_get_type 13: 0x7fb2d23e4463 - g_registered_type_info_get_g_type 14: 0x7fb2d25610ed - _wrap_g_registered_type_info_get_g_type 15: 0x7fb2d2d94317 - <unknown> 16: 0x7fb2d2d007c8 - _PyEval_EvalFrameDefault 17: 0x7fb2d2e3c03c - <unknown> 18: 0x7fb2d2d47e1e - _PyFunction_Vectorcall 19: 0x7fb2d2d4ae48 - <unknown> 20: 0x7fb2d2db9642 - <unknown> 21: 0x7fb2d2cfdf0e - _PyEval_EvalFrameDefault 22: 0x7fb2d2cf968b - <unknown> 23: 0x7fb2d2d00310 - _PyEval_EvalFrameDefault 24: 0x7fb2d2e3c03c - <unknown> 25: 0x7fb2d2d47e1e - _PyFunction_Vectorcall 26: 0x7fb2d2d00310 - _PyEval_EvalFrameDefault 27: 0x7fb2d2cf968b - <unknown> 28: 0x7fb2d2d00310 - _PyEval_EvalFrameDefault 29: 0x7fb2d2cf968b - <unknown> 30: 0x7fb2d2d4adc4 - <unknown> 31: 0x7fb2d256a7b1 - pyg_closure_marshal 32: 0x7fb2d23904af - g_closure_invoke 33: 0x7fb2d23a1fcb - signal_emit_unlocked_R.isra.0 34: 0x7fb2d2556f21 - pygobject_emit 35: 0x7fb2d2d52020 - <unknown> 36: 0x7fb2d2d00310 - _PyEval_EvalFrameDefault 37: 0x7fb2d2cf968b - <unknown> 38: 0x7fb2d2d00310 - _PyEval_EvalFrameDefault 39: 0x7fb2d2cf968b - <unknown> 40: 0x7fb2d2d4adc4 - <unknown> 41: 0x7fb2d2cff09a - _PyEval_EvalFrameDefault 42: 0x7fb2d2cf968b - <unknown> 43: 0x7fb2d2d4adc4 - <unknown> 44: 0x7fb2d256cb78 - _pygi_closure_handle 45: 0x7fb2d2375446 - <unknown> 46: 0x7fb2d23758d0 - <unknown> 47: 0x7fb2d21bf919 - g_task_return_now 48: 0x7fb2d21c040b - g_task_return.part.0 49: 0x7fb2d218a2e5 - read_bytes_callback 50: 0x7fb2d218b807 - async_ready_callback_wrapper 51: 0x7fb2d21bf919 - g_task_return_now 52: 0x7fb2d21bf959 - complete_in_idle_cb 53: 0x7fb2d246136f - g_main_context_dispatch 54: 0x7fb2d24616e8 - g_main_context_iterate.constprop.0 55: 0x7fb2d246178f - g_main_context_iteration 56: 0x7fb2d21ed4c5 - g_application_run 57: 0x7fb2d237573d - <unknown> 58: 0x7fb2d23744ec - <unknown> 59: 0x7fb2d256f376 - pygi_invoke_c_callable 60: 0x7fb2d25710ea - pygi_function_cache_invoke 61: 0x7fb2d2d47b69 - PyObject_Call 62: 0x7fb2d2cff09a - _PyEval_EvalFrameDefault 63: 0x7fb2d2e3c03c - <unknown> 64: 0x7fb2d2d47e1e - _PyFunction_Vectorcall 65: 0x7fb2d2d00310 - _PyEval_EvalFrameDefault 66: 0x7fb2d2e3c03c - <unknown> 67: 0x7fb2d2e3c37d - PyEval_EvalCode 68: 0x7fb2d2e816f5 - <unknown> 69: 0x7fb2d2e82f4d - PyRun_SimpleFileExFlags 70: 0x7fb2d2ea1ae7 - <unknown> 71: 0x7fb2d2ea20f8 - Py_BytesMain 72: 0x7fb2d28fd7dd - __libc_start_main 73: 0x40107a - _start 74: 0x0 - <unknown> fatal runtime error: failed to initiate panic, error 5
