MSYS2 broken install

Ugh. Every year, the non-workingness of released software gets worse.

Problem:

MSYS2 does not quite install properly.

Error Message:

error: mingw32: signature from "Alexey Pavlov (Alexpux) " is unknown trust

User Workaround Fix: 

Run the following commands:

pacman-key --init

pacman-key --populate

pacman -Syu

At the end of the various messages and prompts (choose default Y) you get:
warning: terminate MSYS2 without returning to shell and check for updates again
warning: for example close your terminal window instead of calling exit

When you attempt to close you will get a new warning in a popup window about running processes. Close anyway.

Open a new MSYS shell window and rerun pacman:

pacman -Syu

Wait until your brain explodes or you complete the re-installation/upgrade of packages (in my case 40).

That was it for me. YYMV

Developer Fix: 

Release is broken:

• Fix Deployment Test to capture error before users see it.
• Fix Deployment, since it deploys incorrectly.

Test is broken:

• Fix upstream testing

Build is broken:

• Fix Build and upstream code for deployment.