Added checks for if-exists for cargo and linuxbrew

.zshenv

@@ -7,4 +7,7 @@
 : ${ZIM_HOME=${ZDOTDIR:-${HOME}}/.zim}
 # }}} End configuration added by Zim install
 
+if [[ -d "$HOME/.cargo" ]]; then
   . "$HOME/.cargo/env"
+fi
+

.zshrc

@@ -123,7 +123,9 @@ bindkey -M vicmd 'j' history-substring-search-down
 # }}} End configuration added by Zim install
 
 # Homebrew
+if [[ -d "/home/linuxbrew/.linuxbrew" ]]; then
   eval "$(/home/linuxbrew/.linuxbrew/bin/brew shellenv)"
+fi
 
 # Set Path:
 typeset -U PATH