If you want to use some other non-root username, specify it via
the NON_ROOT_USERNAME environment variable. Depending on the
permissions with which the working directories have been created,
-using `nobody' may fail, because that use won't have the required
+using `nobody' may fail, because that user won't have the required
read and write access to the build and test directories.
I find that it is best to unpack and build as a non-privileged
user, and then to run the following command as that user in order