Orbit MSI package fails on Linux

[zwass]

Operating system (e.g. macOS 11.2.3): Ubuntu 20.04 (also reported on Debian)

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🧑‍💻  Expected behavior

Build an Orbit package successfully.

💥  Actual behavior

heat.exe : error HEAT5052 : The directory 'C:\root' could not be found.
2021-07-19T16:48:27-07:00 FTL package failed error="package root files: heat failed: exit status 188"
exit status 1

More info

Looks like it has something to do with mounting the files into the Wix container?

[zwass]

It actually seems to be an issue when the package command is run as root -- the wine user in the container doesn't have permissions to access the necessary files.