The guix home test is failing on the testsuite, when the requirement to provide XDG_RUNTIME_DIR is not met. The test should be set up to provide a proper environment irrespective of the setup.

The test log ends with:
+ cat
+ guix home reconfigure /tmp/tmp.zQT5LdzYx7/home.scm
/gnu/store/f8pjw90hv5176rjq126zbmy2vm2jdggw-home
guix home: error: mkdir: Permission denied
+ chmod -Rf +w /tmp/tmp.zQT5LdzYx7
+ rm -rf /tmp/tmp.zQT5LdzYx7
FAIL tests/guix-home.sh (exit status: 1)

I did not see anything interesting before these lines, but I can provide the whole log if needed.

Regards,
g_bor
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