require 1.58 msrv

Author: nyurik

.github/workflows/main.yml

@@ -229,7 +229,7 @@ jobs:
       with:
         submodules: true
     - name: Install Rust
-      run: rustup update 1.55.0 && rustup default 1.55.0
+      run: rustup update 1.58.0 && rustup default 1.58.0
     - run: cargo build
 
   miri: