Bridge actor dies on panic

[guidiaz]

[2021-11-29T13:26:50Z DEBUG witnet_centralized_ethereum_bridge::actors::eth_poller] Checking new DRs from Ethereum contract...

thread 'main' panicked at 'receipt can't be null after wait for confirmations; qed', /home/witnet/.cargo/registry/src/github.com-1ecc6299db9ec823/web3-0.16.0/src/confirm.rs:88:10

stack backtrace:

   0: rust_begin_unwind
             at /rustc/9bc8c42bb2f19e745a63f3445f1ac248fb015e53/library/std/src/panicking.rs:493:5
   1: core::panicking::panic_fmt
             at /rustc/9bc8c42bb2f19e745a63f3445f1ac248fb015e53/library/core/src/panicking.rs:92:14
   2: core::option::expect_failed
             at /rustc/9bc8c42bb2f19e745a63f3445f1ac248fb015e53/library/core/src/option.rs:1321:5
   3: <core::future::from_generator::GenFuture<T> as core::future::future::Future>::poll
   4: <core::future::from_generator::GenFuture<T> as core::future::future::Future>::poll
   5: <actix::fut::future::map::Map<Fut,F> as actix::fut::future::ActorFuture<A>>::poll
   6: <actix::contextimpl::ContextFut<A,C> as core::future::future::Future>::poll
   7: tokio::runtime::task::harness::Harness<T,S>::poll
   8: std::thread::local::LocalKey<T>::with
   9: tokio::task::local::LocalSet::tick
  10: tokio::macros::scoped_tls::ScopedKey<T>::set
  11: <core::future::from_generator::GenFuture<T> as core::future::future::Future>::poll
  12: tokio::macros::scoped_tls::ScopedKey<T>::set
  13: tokio::runtime::basic_scheduler::BasicScheduler<P>::block_on
  14: tokio::runtime::Runtime::block_on
  15: actix_rt::system::SystemRunner::run
  16: witnet_centralized_ethereum_bridge::main

note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.

[2021-11-29T13:27:26Z INFO  witnet_centralized_ethereum_bridge::actors::wit_poller] [424] Found possible tally to be reported for dr_tx_hash 78f0c8617124aed361ed488da43396242958d47f31bbc5bfba109f05b120daf2

thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: MailboxError(Mailbox has closed)', bridges/centralized-ethereum/src/actors/wit_poller.rs:141:30

stack backtrace:

   0: rust_begin_unwind
             at /rustc/9bc8c42bb2f19e745a63f3445f1ac248fb015e53/library/std/src/panicking.rs:493:5
   1: core::panicking::panic_fmt
             at /rustc/9bc8c42bb2f19e745a63f3445f1ac248fb015e53/library/core/src/panicking.rs:92:14
   2: core::option::expect_none_failed
             at /rustc/9bc8c42bb2f19e745a63f3445f1ac248fb015e53/library/core/src/option.rs:1329:5
   3: <core::future::from_generator::GenFuture<T> as core::future::future::Future>::poll
   4: <actix::fut::future::then::Then<A,B,F> as actix::fut::future::ActorFuture<Act>>::poll
   5: <actix::contextimpl::ContextFut<A,C> as core::future::future::Future>::poll
   6: tokio::runtime::task::harness::Harness<T,S>::poll
   7: std::thread::local::LocalKey<T>::with
   8: tokio::task::local::LocalSet::tick
   9: tokio::macros::scoped_tls::ScopedKey<T>::set
  10: <core::future::from_generator::GenFuture<T> as core::future::future::Future>::poll
  11: tokio::macros::scoped_tls::ScopedKey<T>::set
  12: tokio::runtime::basic_scheduler::BasicScheduler<P>::block_on
  13: tokio::runtime::Runtime::block_on
  14: actix_rt::system::SystemRunner::run
  15: witnet_centralized_ethereum_bridge::main
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.