There are some logs I could find where I could see there are some deprecated functions in tempest like following:
/usr/lib/python2.7/site-packages/neutron/tests/tempest/api/admin/test_external_network_extension.py:41: DeprecationWarning: Function 'tempest.test.idempotent_id()' has moved to 'tempest.lib.decorators.idempotent_id()' in version 'Mitaka' and will be removed in a future version
@test.idempotent_id('afd8f1b7-a81e-4629-bca8-a367b3a144bb')
/usr/lib/python2.7/site-packages/neutron/tests/tempest/api/admin/test_floating_ips_admin_actions.py:45: DeprecationWarning: Function 'tempest.test.idempotent_id()' has moved to 'tempest.lib.decorators.idempotent_id()' in version 'Mitaka' and will be removed in a future version
@test.idempotent_id('11116ee9-4e99-5b15-b8e1-aa7df92ca589')
/usr/lib/python2.7/site-packages/neutron/tests/tempest/api/admin/test_l3_agent_scheduler.py:67: DeprecationWarning: Function 'tempest.test.idempotent_id()' has moved to 'tempest.lib.decorators.idempotent_id()' in version 'Mitaka' and will be removed in a future version
@test.idempotent_id('b7ce6e89-e837-4ded-9b78-9ed3c9c6a45a')
/usr/lib/python2.7/site-packages/neutron/tests/tempest/api/admin/test_networks.py:22: DeprecationWarning: Function 'tempest.test.idempotent_id()' has moved to 'tempest.lib.decorators.idempotent_id()' in version 'Mitaka' and will be removed in a future version
@test.idempotent_id('d3c76044-d067-4cb0-ae47-8cdd875c7f67')
/usr/lib/python2.7/site-packages/neutron/tests/tempest/api/admin/test_quotas.py:78: DeprecationWarning: Function 'tempest.test.idempotent_id()' has moved to 'tempest.lib.decorators.idempotent_id()' in version 'Mitaka' and will be removed in a future version
@test.idempotent_id('2390f766-836d-40ef-9aeb-e810d78207fb')
/usr/lib/python2.7/site-packages/neutron/tests/tempest/api/admin/test_quotas_negative.py:26: DeprecationWarning: Function 'tempest.test.idempotent_id()' has moved to 'tempest.lib.decorators.idempotent_id()' in version 'Mitaka' and will be removed in a future version
@test.idempotent_id('952f9b24-9156-4bdc-90f3-682a3d4302f0')
/usr/lib/python2.7/site-packages/neutron/tests/tempest/api/admin/test_routers_dvr.py:42: DeprecationWarning: Function 'tempest.test.idempotent_id()' has moved to 'tempest.lib.decorators.idempotent_id()' in version 'Mitaka' and will be removed in a future version
@test.idempotent_id('08a2a0a8-f1e4-4b34-8e30-e522e836c44e')
/usr/lib/python2.7/site-packages/neutron/tests/tempest/api/admin/test_routers_flavors.py:83: DeprecationWarning: Function 'tempest.test.idempotent_id()' has moved to 'tempest.lib.decorators.idempotent_id()' in version 'Mitaka' and will be removed in a future version
@test.idempotent_id('a4d01977-e968-4983-b4d9-824ea6c33f4b')
/usr/lib/python2.7/site-packages/neutron/tests/tempest/api/admin/test_shared_network_extension.py:33: DeprecationWarning: Function 'tempest.test.idempotent_id()' has moved to 'tempest.lib.decorators.idempotent_id()' in version 'Mitaka' and will be removed in a future version
@test.idempotent_id('6661d219-b96d-4597-ad10-55766123421a')
/usr/lib/python2.7/site-packages/neutron/tests/tempest/api/test_address_scopes.py:59: DeprecationWarning: Function 'tempest.test.idempotent_id()' has moved to 'tempest.lib.decorators.idempotent_id()' in version 'Mitaka' and will be removed in a future version
@test.idempotent_id('045f9294-8b1a-4848-b6a8-edf1b41e9d06')
/usr/lib/python2.7/site-packages/neutron/tests/tempest/api/test_address_scopes_negative.py:25: DeprecationWarning: Function 'tempest.test.idempotent_id()' has moved to 'tempest.lib.decorators.idempotent_id()' in version 'Mitaka' and will be removed in a future version
@test.idempotent_id('9c92ec34-0c50-4104-aa47-9ce98d5088df')
/usr/lib/python2.7/site-packages/neutron/tests/tempest/api/test_allowed_address_pair.py:51: DeprecationWarning: Function 'tempest.test.idempotent_id()' has moved to 'tempest.lib.decorators.idempotent_id()' in version 'Mitaka' and will be removed in a future version
@test.idempotent_id('86c3529b-1231-40de-803c-00e40882f043')
/usr/lib/python2.7/site-packages/neutron/tests/tempest/api/test_auto_allocated_topology.py:82: DeprecationWarning: Function 'tempest.test.idempotent_id()' has moved to 'tempest.lib.decorators.idempotent_id()' in version 'Mitaka' and will be removed in a future version
@test.idempotent_id('64bc0b02-cee4-11e5-9f3c-080027605a2b')
/usr/lib/python2.7/site-packages/neutron/tests/tempest/api/test_dhcp_ipv6.py:82: DeprecationWarning: Function 'tempest.test.idempotent_id()' has moved to 'tempest.lib.decorators.idempotent_id()' in version 'Mitaka' and will be removed in a future version
@test.idempotent_id('98244d88-d990-4570-91d4-6b25d70d08af')
/usr/lib/python2.7/site-packages/neutron/tests/tempest/api/test_extension_driver_port_security.py:31: DeprecationWarning: Function 'tempest.test.idempotent_id()' has moved to 'tempest.lib.decorators.idempotent_id()' in version 'Mitaka' and will be removed in a future version
@test.idempotent_id('7c338ddf-e64e-4118-bd33-e49a1f2f1495')
/usr/lib/python2.7/site-packages/neutron/tests/tempest/api/test_extensions.py:30: DeprecationWarning: Function 'tempest.test.idempotent_id()' has moved to 'tempest.lib.decorators.idempotent_id()' in version 'Mitaka' and will be removed in a future version
@test.idempotent_id('262420b7-a4bb-4a3e-b4b5-e73bad18df8c')
/usr/lib/python2.7/site-packages/neutron/tests/tempest/api/test_extra_dhcp_options.py:55: DeprecationWarning: Function 'tempest.test.idempotent_id()' has moved to 'tempest.lib.decorators.idempotent_id()' in version 'Mitaka' and will be removed in a future version
@test.idempotent_id('d2c17063-3767-4a24-be4f-a23dbfa133c9')
/usr/lib/python2.7/site-packages/neutron/tests/tempest/api/test_flavors_extensions.py:66: DeprecationWarning: Function 'tempest.test.idempotent_id()' has moved to 'tempest.lib.decorators.idempotent_id()' in version 'Mitaka' and will be removed in a future version
@test.idempotent_id('b12a9487-b6a2-4cff-a69a-fe2a0b64fae6')
/usr/lib/python2.7/site-packages/neutron/tests/tempest/api/test_floating_ips.py:44: DeprecationWarning: Function 'tempest.test.idempotent_id()' has moved to 'tempest.lib.decorators.idempotent_id()' in version 'Mitaka' and will be removed in a future version
@test.idempotent_id('f6a0fb6c-cb64-4b81-b0d5-f41d8f69d22d')
/usr/lib/python2.7/site-packages/neutron/tests/tempest/api/test_floating_ips_negative.py:42: DeprecationWarning: Function 'tempest.test.idempotent_id()' has moved to 'tempest.lib.decorators.idempotent_id()' in version 'Mitaka' and will be removed in a future version
@test.idempotent_id('0b5b8797-6de7-4191-905c-a48b888eb429')
/usr/lib/python2.7/site-packages/neutron/tests/tempest/api/test_metering_extensions.py:64: DeprecationWarning: Function 'tempest.test.idempotent_id()' has moved to 'tempest.lib.decorators.idempotent_id()' in version 'Mitaka' and will be removed in a future version
@test.idempotent_id('05d7c750-6d26-44d6-82f3-c9dd1f81f358')
/usr/lib/python2.7/site-packages/neutron/tests/tempest/api/test_metering_negative.py:32: DeprecationWarning: Function 'tempest.test.idempotent_id()' has moved to 'tempest.lib.decorators.idempotent_id()' in version 'Mitaka' and will be removed in a future version
@test.idempotent_id('8b3f7c84-9d37-4771-8681-bfd2c07f3c2d')
/usr/lib/python2.7/site-packages/neutron/tests/tempest/api/test_network_ip_availability.py:111: DeprecationWarning: Function 'tempest.test.idempotent_id()' has moved to 'tempest.lib.decorators.idempotent_id()' in version 'Mitaka' and will be removed in a future version
@test.idempotent_id('0f33cc8c-1bf6-47d1-9ce1-010618240599')
/usr/lib/python2.7/site-packages/neutron/tests/tempest/api/test_network_ip_availability_negative.py:25: DeprecationWarning: Function 'tempest.test.idempotent_id()' has moved to 'tempest.lib.decorators.idempotent_id()' in version 'Mitaka' and will be removed in a future version
@test.idempotent_id('3b8693eb-6c57-4ea1-ab84-3730c9ee9c84')
/usr/lib/python2.7/site-packages/neutron/tests/tempest/api/test_networks.py:39: DeprecationWarning: Function 'tempest.test.idempotent_id()' has moved to 'tempest.lib.decorators.idempotent_id()' in version 'Mitaka' and will be removed in a future version
@test.idempotent_id('2bf13842-c93f-4a69-83ed-717d2ec3b44e')
/usr/lib/python2.7/site-packages/neutron/tests/tempest/api/test_networks_negative.py:29: DeprecationWarning: Function 'tempest.test.idempotent_id()' has moved to 'tempest.lib.decorators.idempotent_id()' in version 'Mitaka' and will be removed in a future version
@test.idempotent_id('9f80f25b-5d1b-4f26-9f6b-774b9b270819')
/usr/lib/python2.7/site-packages/neutron/tests/tempest/api/test_ports.py:45: DeprecationWarning: Function 'tempest.test.idempotent_id()' has moved to 'tempest.lib.decorators.idempotent_id()' in version 'Mitaka' and will be removed in a future version
@test.idempotent_id('c72c1c0c-2193-4aca-bbb4-b1442640bbbb')
/usr/lib/python2.7/site-packages/neutron/tests/tempest/api/test_qos.py:31: DeprecationWarning: Function 'tempest.test.idempotent_id()' has moved to 'tempest.lib.decorators.idempotent_id()' in version 'Mitaka' and will be removed in a future version
@test.idempotent_id('108fbdf7-3463-4e47-9871-d07f3dcf5bbb')
/usr/lib/python2.7/site-packages/neutron/tests/tempest/api/test_qos_negative.py:31: DeprecationWarning: Function 'tempest.test.idempotent_id()' has moved to 'tempest.lib.decorators.idempotent_id()' in version 'Mitaka' and will be removed in a future version
@test.idempotent_id('b9dce555-d3b3-11e5-950a-54ee757c77da')
/usr/lib/python2.7/site-packages/neutron/tests/tempest/api/test_revisions.py:29: DeprecationWarning: Function 'tempest.test.idempotent_id()' has moved to 'tempest.lib.decorators.idempotent_id()' in version 'Mitaka' and will be removed in a future version
@test.idempotent_id('4a26a4be-9c53-483c-bc50-b53f1db10ac6')
/usr/lib/python2.7/site-packages/neutron/tests/tempest/api/test_routers.py:44: DeprecationWarning: Function 'tempest.test.idempotent_id()' has moved to 'tempest.lib.decorators.idempotent_id()' in version 'Mitaka' and will be removed in a future version
@test.idempotent_id('c72c1c0c-2193-4aca-eeee-b1442640eeee')
/usr/lib/python2.7/site-packages/neutron/tests/tempest/api/test_routers_negative.py:42: DeprecationWarning: Function 'tempest.test.idempotent_id()' has moved to 'tempest.lib.decorators.idempotent_id()' in version 'Mitaka' and will be removed in a future version
@test.idempotent_id('e3e751af-15a2-49cc-b214-a7154579e94f')
/usr/lib/python2.7/site-packages/neutron/tests/tempest/api/test_security_groups.py:29: DeprecationWarning: Function 'tempest.test.idempotent_id()' has moved to 'tempest.lib.decorators.idempotent_id()' in version 'Mitaka' and will be removed in a future version
@test.idempotent_id('bfd128e5-3c92-44b6-9d66-7fe29d22c802')
/usr/lib/python2.7/site-packages/neutron/tests/tempest/api/test_security_groups_negative.py:30: DeprecationWarning: Function 'tempest.test.idempotent_id()' has moved to 'tempest.lib.decorators.idempotent_id()' in version 'Mitaka' and will be removed in a future version
@test.idempotent_id('55100aa8-b24f-333c-0bef-64eefd85f15c')
/usr/lib/python2.7/site-packages/neutron/tests/tempest/api/test_service_type_management.py:25: DeprecationWarning: Function 'tempest.test.idempotent_id()' has moved to 'tempest.lib.decorators.idempotent_id()' in version 'Mitaka' and will be removed in a future version
@test.idempotent_id('2cbbeea9-f010-40f6-8df5-4eaa0c918ea6')
/usr/lib/python2.7/site-packages/neutron/tests/tempest/api/test_subnetpools.py:94: DeprecationWarning: Function 'tempest.test.idempotent_id()' has moved to 'tempest.lib.decorators.idempotent_id()' in version 'Mitaka' and will be removed in a future version
@test.idempotent_id('6e1781ec-b45b-4042-aebe-f485c022996e')
/usr/lib/python2.7/site-packages/neutron/tests/tempest/api/test_subnetpools_negative.py:33: DeprecationWarning: Function 'tempest.test.idempotent_id()' has moved to 'tempest.lib.decorators.idempotent_id()' in version 'Mitaka' and will be removed in a future version
@test.idempotent_id('0212a042-603a-4f46-99e0-e37de9374d30')
/usr/lib/python2.7/site-packages/neutron/tests/tempest/api/test_subnets.py:31: DeprecationWarning: Function 'tempest.test.idempotent_id()' has moved to 'tempest.lib.decorators.idempotent_id()' in version 'Mitaka' and will be removed in a future version
@test.idempotent_id('d2d61995-5dd5-4b93-bce7-3edefdb79563')
/usr/lib/python2.7/site-packages/neutron/tests/tempest/api/test_tag.py:85: DeprecationWarning: Function 'tempest.test.idempotent_id()' has moved to 'tempest.lib.decorators.idempotent_id()' in version 'Mitaka' and will be removed in a future version
@test.idempotent_id('5621062d-fbfb-4437-9d69-138c78ea4188')
/usr/lib/python2.7/site-packages/neutron/tests/tempest/api/test_timestamp.py:54: DeprecationWarning: Function 'tempest.test.idempotent_id()' has moved to 'tempest.lib.decorators.idempotent_id()' in version 'Mitaka' and will be removed in a future version
@test.idempotent_id('462be770-b310-4df9-9c42-773217e4c8b1')
/usr/lib/python2.7/site-packages/neutron/tests/tempest/api/test_trunk.py:84: DeprecationWarning: Function 'tempest.test.idempotent_id()' has moved to 'tempest.lib.decorators.idempotent_id()' in version 'Mitaka' and will be removed in a future version
@test.idempotent_id('e1a6355c-4768-41f3-9bf8-0f1d192bd501')
/usr/lib/python2.7/site-packages/neutron/tests/tempest/api/test_trunk_details.py:24: DeprecationWarning: Function 'tempest.test.idempotent_id()' has moved to 'tempest.lib.decorators.idempotent_id()' in version 'Mitaka' and will be removed in a future version
@test.idempotent_id('f0bed24f-d36a-498b-b4e7-0d66e3fb7308')
/usr/lib/python2.7/site-packages/neutron/tests/tempest/api/test_trunk_negative.py:26: DeprecationWarning: Function 'tempest.test.idempotent_id()' has moved to 'tempest.lib.decorators.idempotent_id()' in version 'Mitaka' and will be removed in a future version
@test.idempotent_id('1b5cf87a-1d3a-4a94-ba64-647153d54f32')
/usr/lib/python2.7/site-packages/neutron/tests/tempest/scenario/test_basic.py:30: DeprecationWarning: Function 'tempest.test.idempotent_id()' has moved to 'tempest.lib.decorators.idempotent_id()' in version 'Mitaka' and will be removed in a future version
@test.idempotent_id('de07fe0a-e955-449e-b48b-8641c14cd52e')
/usr/lib/python2.7/site-packages/neutron/tests/tempest/scenario/test_dvr.py:53: DeprecationWarning: Function 'tempest.test.idempotent_id()' has moved to 'tempest.lib.decorators.idempotent_id()' in version 'Mitaka' and will be removed in a future version
@test.idempotent_id('3d73ec1a-2ec6-45a9-b0f8-04a283d9d344')
/usr/lib/python2.7/site-packages/neutron/tests/tempest/scenario/test_floatingip.py:122: DeprecationWarning: Function 'tempest.test.idempotent_id()' has moved to 'tempest.lib.decorators.idempotent_id()' in version 'Mitaka' and will be removed in a future version
@test.idempotent_id('05c4e3b3-7319-4052-90ad-e8916436c23b')
/usr/lib/python2.7/site-packages/neutron/tests/tempest/scenario/test_qos.py:143: DeprecationWarning: Function 'tempest.test.idempotent_id()' has moved to 'tempest.lib.decorators.idempotent_id()' in version 'Mitaka' and will be removed in a future version
@test.idempotent_id('1f7ed39b-428f-410a-bd2b-db9f465680df')
/usr/lib/python2.7/site-packages/neutron/tests/tempest/scenario/test_trunk.py:146: DeprecationWarning: Function 'tempest.test.idempotent_id()' has moved to 'tempest.lib.decorators.idempotent_id()' in version 'Mitaka' and will be removed in a future version
@test.idempotent_id('bb13fe28-f152-4000-8131-37890a40c79e')
This isn't actually a bug in tempest, those are interfaces that will be removed in a future version. The neutron tempest plugin is using them which is causing the warning to be emitted. The issue is that the neutron plugin code needs to be updated