Fix updated clippy grumbles (#733)

* Revert "Pin Rust Nightly to 2020-12-17 (#652)"

This reverts commit e54e6f7e3d34c28d698e637f9099162b3c1917e9.

* fix clippy

* clippy again

* more clippy in test code

* and new cargo fmt

* another try

bridges/modules/shift-session-manager/src/lib.rs

@@ -86,6 +86,9 @@ impl<T: Config> Module<T> {
 
 #[cfg(test)]
 mod tests {
+	// From construct_runtime macro
+	#![allow(clippy::from_over_into)]
+
 	use super::*;
 	use frame_support::sp_io::TestExternalities;
 	use frame_support::sp_runtime::{