HarbormasterHTTPRequestBuildStepImplementation class has hardcoded timeout for HTTP Request execution:
https://github.com/phacility/phabricator/blob/master/src/applications/harbormaster/step/HarbormasterHTTPRequestBuildStepImplementation.php#L58
It's very inconvenient for requests that run more than a minute, because builds always marked as failed.
It would be nice if it were possible to configure this parameter.