inspect timezone being none in an interaction

[laralove143]

backtrace:

core::option::Option<chrono::datetime::DateTime<chrono_tz::timezones::Tz>> is None

Stack backtrace:
   0: <core::future::from_generator::GenFuture<T> as core::future::future::Future>::poll
   1: timezoner::interaction::<impl timezoner::Context>::handle_interaction::{{closure}}
   2: <core::future::from_generator::GenFuture<T> as core::future::future::Future>::poll
   3: tokio::runtime::task::core::Core<T,S>::poll
   4: tokio::runtime::task::harness::Harness<T,S>::poll
   5: tokio::runtime::scheduler::multi_thread::worker::Context::run_task
   6: tokio::runtime::scheduler::multi_thread::worker::Context::run
   7: tokio::macros::scoped_tls::ScopedKey<T>::set
   8: tokio::runtime::scheduler::multi_thread::worker::run
   9: tokio::loom::std::unsafe_cell::UnsafeCell<T>::with_mut
  10: tokio::runtime::task::core::Core<T,S>::poll
  11: tokio::runtime::task::harness::Harness<T,S>::poll
  12: tokio::runtime::blocking::pool::Inner::run
  13: std::sys_common::backtrace::__rust_begin_short_backtrace
  14: core::ops::function::FnOnce::call_once{{vtable.shim}}
  15: <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once
             at /rustc/69f9c33d71c871fc16ac445211281c6e7a340943/library/alloc/src/boxed.rs:1987:9
      <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once
             at /rustc/69f9c33d71c871fc16ac445211281c6e7a340943/library/alloc/src/boxed.rs:1987:9
      std::sys::unix::thread::Thread::new::thread_start
             at /rustc/69f9c33d71c871fc16ac445211281c6e7a340943/library/std/src/sys/unix/thread.rs:108:17
  16: start_thread
  17: clone