docs(core): bump MSRV

[skip_ci]

ci/shell.nix

@@ -28,6 +28,7 @@ let
     ${nixpkgs.patchelf}/bin/patchelf --set-interpreter "$(cat $NIX_CC/nix-support/dynamic-linker)" "$out"
     chmod -w $out
   '';
+  # NOTE: don't forget to update Minimum Supported Rust Version in docs/core/build/emulator.md
   rustProfiles = nixpkgs.rust-bin.stable."1.58.1";
   rustStable = rustProfiles.minimal.override {
     targets = [

docs/core/build/emulator.md

@@ -54,7 +54,7 @@ brew install scons sdl2 sdl2_image pkg-config llvm
 
 ## Rust
 
-You will require Rust and Cargo. The currently supported version is 1.55 stable.
+You will require Rust and Cargo. The currently supported version is 1.58 stable.
 The recommended way to install both is with [`rustup`](https://rustup.rs/). If you
 are installing `rustup` for the first time, the stable toolchain will be installed
 for you automatically. Otherwise, make sure you are up to date: