Upgrade Rust to 1.52.0 (#17096)

* Upgrade Rust to 1.52.0
update nightly_version to newly pushed docker image
fix clippy lint errors
1.52 comes with grcov 0.8.0, include this version to script

* upgrade to Rust 1.52.1

* disabling Serum from downstream projects until it is upgraded to Rust 1.52.1

scripts/coverage.sh

@@ -10,7 +10,7 @@ if ! command -v grcov; then
   exit 1
 fi
 
-if [[ ! "$(grcov --version)" =~ 0.[67].1 ]]; then
+if [[ ! "$(grcov --version)" =~ 0.[678].[01] ]]; then
   echo Error: Required grcov version not installed
 
   echo "Installed version: $(grcov --version)"