You need a solution to automatically update Rust and uMod on your server, you've come to the right place.
Download ShutdownWhenUpdate.cs on uMod and put it in your Oxide plugins folder.
Download powershell scripts files, swu_checkserver.ps1 and swu_startserver.ps1 and put it in your script folder.
Configure swu_checkserver.ps1
# Parameters ###################
$script_folder = "C:\Rust" #Your script_folder
$check_interval = 300 #Interval to check server in seconds
################################Configure swu_startserver.ps1
# Config #######################
$server_identity = "default" #Changes path to your server data rust/server/my_server_identity. Useful for running multiple instances
$server_hostname = "Rust Server" #The displayed name of your server
$server_maxplayers = 32 #Maximum amount of players allowed to connect to your server at a time
$server_seed = 1 #Is the map generation seed
$server_worldsize = 1900 #Defines the size of the map generated (min 1000, max 6000)
$server_level = "Procedural Map" #Sets the map of the server (Procedural Map) values: Barren, Craggy Island, Hapis, Savas Island
$server_port = 28015 #Sets the port the server will use. (default 28015 UDP)
$server_tickrate = 30 #Server refresh rate - Not recommended to go above 30
$rcon_port = 28016 #Port to listen to for RCON
$rcon_password = "your_password" #Sets the RCON password
$server_description = "" #Command used to write a server description. Make \n to make a new line
$server_headerimage = "" #Sets the serverbanner - picture must be 500x256
$server_url = "" #Sets the server 'Webpage'
################################
# Parameters ###################
$install_folder = "C:\Rust" #Your install directory
$steam_folder = "C:\Rust\steamcmd" #Your steamcmd folder
$token = "" #Token Github (not required)
################################Right click on swu_checkserver.ps1 and Execute with Powershell.