Error occured in p2p network module, on receive: "SendError(..)"

stack backtrace:
   0: backtrace::capture::Backtrace::new_unresolved::h7262d62b02ef04ad (0x7f612b12dbbe)
   1: failure::backtrace::internal::InternalBacktrace::new::hed26fc3b9a1a39dc (0x7f612b12ca8f)
   2: failure::backtrace::Backtrace::new::hdb1a595190c17356 (0x7f612b12d39f)
   3: <failure::error::error_impl::ErrorImpl as core::convert::From<F>>::from::hc576f935e4f3fa5e (0x7f612b01de63)
   4: <failure::error::Error as core::convert::From<F>>::from::hf7660c3db6bd8795 (0x7f612b0a2830)
   5: holochain_net::in_memory::memory_server::InMemoryServer::priv_send_all::h570aae84820c099a (0x7f612b0cc224)
   6: holochain_net::in_memory::memory_server::InMemoryServer::serve::h3e4b7373a506b0fe (0x7f612b0c35fd)
   7: <holochain_net::in_memory::memory_worker::InMemoryWorker as holochain_net::connection::net_connection::NetWorker>::receive::ha693ec9f3ff579d9 (0x7f612b06d8e9)
   8: std::sys_common::backtrace::__rust_begin_short_backtrace::h1a42e68024897ed4 (0x7f612b03ea19)
   9: <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h389b8568115d00ef (0x7f612b01e42f)
  10: std::panicking::try::do_call::h9a88ede0e4a87120 (0x7f612b03b0ce)
  11: __rust_maybe_catch_panic (0x7f612b41bde9)
             at src/libpanic_unwind/lib.rs:92
  12: std::panicking::try::h28a4e9bf955de98c (0x7f612b03b093)
  13: std::panic::catch_unwind::hefdb267137c7012f (0x7f612b01e450)
  14: <F as alloc::boxed::FnBox<A>>::call_box::h3cf73e414c5144f6 (0x7f612b0ab31e)
  15: <alloc::boxed::Box<(dyn alloc::boxed::FnBox<A, Output=R> + 'a)> as core::ops::function::FnOnce<A>>::call_once::h93cf98f22e0fd5c9 (0x7f612b41ac2d)
             at /rustc/19f8958f827e379be9b0ffc93fca580ec8ffac77/src/liballoc/boxed.rs:744
      std::sys_common::thread::start_thread::he849c686b0bafe63
             at src/libstd/sys_common/thread.rs:14
      std::sys::unix::thread::Thread::new::thread_start::hccbef199b5f9a0dc
             at src/libstd/sys/unix/thread.rs:81
  16: start_thread (0x7f612e3395a6)
  17: __GI___clone (0x7f612e07022e)
  18: <unknown> (0x0)
Error occured in p2p network module, on receive: "SendError(..)"

stack backtrace:
   0: backtrace::capture::Backtrace::new_unresolved::h7262d62b02ef04ad (0x7f612b12dbbe)
   1: failure::backtrace::internal::InternalBacktrace::new::hed26fc3b9a1a39dc (0x7f612b12ca8f)
   2: failure::backtrace::Backtrace::new::hdb1a595190c17356 (0x7f612b12d39f)
   3: <failure::error::error_impl::ErrorImpl as core::convert::From<F>>::from::hc576f935e4f3fa5e (0x7f612b01de63)
   4: <failure::error::Error as core::convert::From<F>>::from::hf7660c3db6bd8795 (0x7f612b0a2830)
   5: holochain_net::in_memory::memory_server::InMemoryServer::priv_send_all::h570aae84820c099a (0x7f612b0cc224)
   6: holochain_net::in_memory::memory_server::InMemoryServer::priv_serve_PublishEntry::h5df6d7b5bda8f3a2 (0x7f612b0cc481)
   7: holochain_net::in_memory::memory_server::InMemoryServer::serve::h3e4b7373a506b0fe (0x7f612b0c2b25)
   8: <holochain_net::in_memory::memory_worker::InMemoryWorker as holochain_net::connection::net_connection::NetWorker>::receive::ha693ec9f3ff579d9 (0x7f612b06d8e9)
   9: std::sys_common::backtrace::__rust_begin_short_backtrace::h1a42e68024897ed4 (0x7f612b03ea19)
  10: <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h389b8568115d00ef (0x7f612b01e42f)
  11: std::panicking::try::do_call::h9a88ede0e4a87120 (0x7f612b03b0ce)
  12: __rust_maybe_catch_panic (0x7f612b41bde9)
             at src/libpanic_unwind/lib.rs:92
  13: std::panicking::try::h28a4e9bf955de98c (0x7f612b03b093)
  14: std::panic::catch_unwind::hefdb267137c7012f (0x7f612b01e450)
  15: <F as alloc::boxed::FnBox<A>>::call_box::h3cf73e414c5144f6 (0x7f612b0ab31e)
  16: <alloc::boxed::Box<(dyn alloc::boxed::FnBox<A, Output=R> + 'a)> as core::ops::function::FnOnce<A>>::call_once::h93cf98f22e0fd5c9 (0x7f612b41ac2d)
             at /rustc/19f8958f827e379be9b0ffc93fca580ec8ffac77/src/liballoc/boxed.rs:744
      std::sys_common::thread::start_thread::he849c686b0bafe63
             at src/libstd/sys_common/thread.rs:14
      std::sys::unix::thread::Thread::new::thread_start::hccbef199b5f9a0dc
             at src/libstd/sys/unix/thread.rs:81
  17: start_thread (0x7f612e3395a6)
  18: __GI___clone (0x7f612e07022e)
  19: <unknown> (0x0)