Handle GStreamer built without debug infrastructure without crashing

Hello,

I have some trouble getting rust plugins work (particularly fallbackswitch) on my RPi 4. The same pipelines including fallbackswitch work perfectly on my laptop, but on the RPi (also running gstreamer 1.18.2), there seems to be an assertion failure in the gstreamer-rs side. Might be some configuration or incompatibility issue, but I'm not able to tell. Here's the full trace:

Setting pipeline to PAUSED ...
thread '<unnamed>' panicked at 'assertion failed: !ptr.is_null()', /home/pi/.cargo/git/checkouts/gstreamer-rs-79e52a2d27eb91a3/927cca1/gstreamer/src/log.rs:65:13
stack backtrace:
Pipeline is live and does not need PREROLL ...
Got context from element 'souphttpsrc0': gst.soup.session=context, session=(SoupSession)NULL, force=(boolean)false;
Pipeline is PREROLLED ...
Setting pipeline to PLAYING ...
New clock: GstSystemClock
   0: std::panicking::begin_panic
             at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/std/src/panicking.rs:521:12
   1: gstreamer::log::DebugCategory::new
             at ./.cargo/git/checkouts/gstreamer-rs-79e52a2d27eb91a3/927cca1/gstreamer/src/log.rs:65:13
   2: gstfallbackswitch::fallbackswitch::imp::CAT::{{closure}}
             at ./build/gst-plugins-rs/utils/fallbackswitch/src/fallbackswitch/imp.rs:64:5
   3: core::ops::function::FnOnce::call_once
             at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/core/src/ops/function.rs:227:5
   4: core::ops::function::FnOnce::call_once
             at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/core/src/ops/function.rs:227:5
   5: once_cell::sync::Lazy<T,F>::force::{{closure}}
             at ./.cargo/registry/src/github.com-1285ae84e5963aae/once_cell-1.5.2/src/lib.rs:1001:28
   6: once_cell::sync::OnceCell<T>::get_or_init::{{closure}}
             at ./.cargo/registry/src/github.com-1285ae84e5963aae/once_cell-1.5.2/src/lib.rs:834:57
   7: once_cell::imp::OnceCell<T>::initialize::{{closure}}
             at ./.cargo/registry/src/github.com-1285ae84e5963aae/once_cell-1.5.2/src/imp_std.rs:93:19
   8: once_cell::imp::initialize_inner
             at ./.cargo/registry/src/github.com-1285ae84e5963aae/once_cell-1.5.2/src/imp_std.rs:167:31
   9: once_cell::imp::OnceCell<T>::initialize
             at ./.cargo/registry/src/github.com-1285ae84e5963aae/once_cell-1.5.2/src/imp_std.rs:91:9
  10: once_cell::sync::OnceCell<T>::get_or_try_init
             at ./.cargo/registry/src/github.com-1285ae84e5963aae/once_cell-1.5.2/src/lib.rs:874:13
  11: once_cell::sync::OnceCell<T>::get_or_init
             at ./.cargo/registry/src/github.com-1285ae84e5963aae/once_cell-1.5.2/src/lib.rs:834:19
  12: once_cell::sync::Lazy<T,F>::force
             at ./.cargo/registry/src/github.com-1285ae84e5963aae/once_cell-1.5.2/src/lib.rs:1000:13
  13: <once_cell::sync::Lazy<T,F> as core::ops::deref::Deref>::deref
             at ./.cargo/registry/src/github.com-1285ae84e5963aae/once_cell-1.5.2/src/lib.rs:1010:13
  14: <gstfallbackswitch::fallbackswitch::imp::FallbackSwitch as gstfallbackswitch::gst_base_compat::subclass::aggregator::AggregatorImpl>::get_next_time
             at ./build/gst-plugins-rs/utils/fallbackswitch/src/fallbackswitch/imp.rs:1044:13
  15: gstfallbackswitch::gst_base_compat::subclass::aggregator::aggregator_get_next_time::{{closure}}
             at ./build/gst-plugins-rs/utils/fallbackswitch/src/base/subclass/aggregator.rs:925:9
  16: core::ops::function::FnOnce::call_once
             at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/core/src/ops/function.rs:227:5
  17: <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once
             at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/std/src/panic.rs:322:9
  18: std::panicking::try::do_call
             at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/std/src/panicking.rs:381:40
  19: __rust_try.llvm.2388119712112984368
  20: std::panicking::try
             at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/std/src/panicking.rs:345:19
  21: std::panic::catch_unwind
             at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/std/src/panic.rs:396:14
  22: gstfallbackswitch::gst_base_compat::subclass::aggregator::aggregator_get_next_time
             at ./build/gst-plugins-rs/utils/fallbackswitch/src/base/subclass/aggregator.rs:924:5
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.
ERROR: from element /GstPipeline:pipeline0/FallbackSwitch:s: GStreamer encountered a general supporting library error.
Additional debug info:
utils/fallbackswitch/src/base/subclass/aggregator.rs(924): gstfallbackswitch::gst_base_compat::subclass::aggregator (): /GstPipeline:pipeline0/FallbackSwitch:s:
Panicked: assertion failed: !ptr.is_null()
ERROR: from element /GstPipeline:pipeline0/FallbackSwitch:s: GStreamer encountered a general supporting library error.
Additional debug info:
utils/fallbackswitch/src/base/subclass/aggregator.rs(717): gstfallbackswitch::gst_base_compat::subclass::aggregator (): /GstPipeline:pipeline0/FallbackSwitch:s:
Panicked
Execution ended after 0:00:00.116109953
Setting pipeline to NULL ...
ERROR: from element /GstPipeline:pipeline0/FallbackSwitch:s: GStreamer encountered a general supporting library error.
Additional debug info:
utils/fallbackswitch/src/base/subclass/aggregator.rs(784): gstfallbackswitch::gst_base_compat::subclass::aggregator (): /GstPipeline:pipeline0/FallbackSwitch:s:
Panicked
ERROR: from element /GstPipeline:pipeline0/FallbackSwitch:s: GStreamer encountered a general supporting library error.
Additional debug info:
utils/fallbackswitch/src/base/subclass/aggregator.rs(924): gstfallbackswitch::gst_base_compat::subclass::aggregator (): /GstPipeline:pipeline0/FallbackSwitch:s:
Panicked
ERROR: from element /GstPipeline:pipeline0/FallbackSwitch:s: GStreamer encountered a general supporting library error.
Additional debug info:
/home/pi/.cargo/git/checkouts/gstreamer-rs-79e52a2d27eb91a3/927cca1/gstreamer/src/subclass/element.rs(386): gstreamer::subclass::element (): /GstPipeline:pipeline0/FallbackSwitch:s:
Panicked
ERROR: from element /GstPipeline:pipeline0/FallbackSwitch:s: GStreamer encountered a general supporting library error.
Additional debug info:
utils/fallbackswitch/src/base/subclass/aggregator.rs(784): gstfallbackswitch::gst_base_compat::subclass::aggregator (): /GstPipeline:pipeline0/FallbackSwitch:s:
Panicked
ERROR: from element /GstPipeline:pipeline0/FallbackSwitch:s: GStreamer encountered a general supporting library error.
Additional debug info:
utils/fallbackswitch/src/base/subclass/aggregator.rs(739): gstfallbackswitch::gst_base_compat::subclass::aggregator (): /GstPipeline:pipeline0/FallbackSwitch:s:
Panicked
ERROR: from element /GstPipeline:pipeline0/FallbackSwitch:s: GStreamer encountered a general supporting library error.
Additional debug info:
utils/fallbackswitch/src/base/subclass/aggregator.rs(784): gstfallbackswitch::gst_base_compat::subclass::aggregator (): /GstPipeline:pipeline0/FallbackSwitch:s:
Panicked
ERROR: from element /GstPipeline:pipeline0/FallbackSwitch:s: GStreamer encountered a general supporting library error.
Additional debug info:
utils/fallbackswitch/src/base/subclass/aggregator.rs(739): gstfallbackswitch::gst_base_compat::subclass::aggregator (): /GstPipeline:pipeline0/FallbackSwitch:s:
Panicked
ERROR: from element /GstPipeline:pipeline0/FallbackSwitch:s: GStreamer encountered a general supporting library error.
Additional debug info:
/home/pi/.cargo/git/checkouts/gstreamer-rs-79e52a2d27eb91a3/927cca1/gstreamer/src/subclass/element.rs(386): gstreamer::subclass::element (): /GstPipeline:pipeline0/FallbackSwitch:s:
Panicked
ERROR: from element /GstPipeline:pipeline0/FallbackSwitch:s: GStreamer encountered a general supporting library error.
Additional debug info:
/home/pi/.cargo/git/checkouts/gstreamer-rs-79e52a2d27eb91a3/927cca1/gstreamer/src/subclass/element.rs(386): gstreamer::subclass::element (): /GstPipeline:pipeline0/FallbackSwitch:s:
Panicked
Freeing pipeline ...

The plugin is compiled and installed according to instructions in the README. Any idea what might be going on? Thanks.