rust 1.53.0 updates (#2411)

## Issue Addressed

`make lint` failing on rust 1.53.0.

## Proposed Changes

1.53.0 updates

## Additional Info

I haven't figure out why yet, we were now hitting the recursion limit in a few crates. So I had to add `#![recursion_limit = "256"]` in a few places


Co-authored-by: realbigsean <seananderson33@gmail.com>
Co-authored-by: Michael Sproul <michael@sigmaprime.io>

beacon_node/tests/test.rs

@@ -1,4 +1,5 @@
 #![cfg(test)]
+#![recursion_limit = "256"]
 
 use beacon_chain::StateSkipConfig;
 use node_test_rig::{