Tor aborts when a 'getinfo config-text' command is sent to the controller and $HOME is unsent.
When the HOME environment variable is unset in the Tor process and an authenticated control session sends "GETINFO config-text\n", Tor aborts logging;
[warn] Couldn't find $HOME environment variable while expanding "
[warn] Failed to expand filename "/.tor".
[err] config_dump(): Bug: Failed to validate default config.
[err] config_dump(): Bug: config.c:2573: config_dump: Assertion 0 failed; aborting.