Functional test for indexing, `test_index_all`, fails with missing `unpack` status

[portante]

You can see in this slightly modified functional test output that all tar balls get indexed, but the test never completes because the unpack status is not present.

It is possible that the backup operation is colliding with the unpack operation and the backup status is overwriting the unpack status.

test_put.py::TestPut::test_index_all  ... reporting behaviors ...
[0.00] Checking ...
        ... on /srv/pbench/archive/fs-version-001/dhcp31-44.perf.lab.eng.bos.redhat.com/fio_rw_2018.02.01T22.40.57.tar.xz
                state='Uploaded' status={'upload': 'ok'}
        ... on /srv/pbench/archive/fs-version-001/ctlrA/linpack_mock_2020.02.28T19.10.55.tar.xz
                state='Uploaded' status={'upload': 'ok'}
        ... on /srv/pbench/archive/fs-version-001/ansible-host/pbench-user-benchmark_example-vmstat_2018.10.24T14.38.18.tar.xz
                state='Uploaded' status={'upload': 'ok'}
        ... on /srv/pbench/archive/fs-version-001/perf122.perf.lab.eng.bos.redhat.com/trafficgen_basic-forwarding-example_tg:trex-profile_pf:forwarding_test.json_ml:5_tt:bs__2019-08-27T14:58:38.tar.xz
                state='Uploaded' status={'upload': 'ok'}
        ... on /srv/pbench/archive/fs-version-001/rhel8-1/uperf_rhel8.1_4.18.0-107.el8_snap4_25gb_virt_2019.06.21T01.28.57.tar.xz
                state='Uploaded' status={'upload': 'ok'}
[89.03] Checking ...
        ... on /srv/pbench/archive/fs-version-001/dhcp31-44.perf.lab.eng.bos.redhat.com/fio_rw_2018.02.01T22.40.57.tar.xz
                state='Uploaded' status={'backup': 'ok', 'unpack': 'ok', 'upload': 'ok'}
        ... on /srv/pbench/archive/fs-version-001/ctlrA/linpack_mock_2020.02.28T19.10.55.tar.xz
                state='Uploaded' status={'backup': 'ok', 'unpack': 'ok', 'upload': 'ok'}
        ... on /srv/pbench/archive/fs-version-001/ansible-host/pbench-user-benchmark_example-vmstat_2018.10.24T14.38.18.tar.xz
                state='Uploaded' status={'backup': 'ok', 'upload': 'ok'}
        ... on /srv/pbench/archive/fs-version-001/perf122.perf.lab.eng.bos.redhat.com/trafficgen_basic-forwarding-example_tg:trex-profile_pf:forwarding_test.json_ml:5_tt:bs__2019-08-27T14:58:38.tar.xz
                state='Uploaded' status={'backup': 'ok', 'unpack': 'ok', 'upload': 'ok'}
        ... on /srv/pbench/archive/fs-version-001/rhel8-1/uperf_rhel8.1_4.18.0-107.el8_snap4_25gb_virt_2019.06.21T01.28.57.tar.xz
                state='Uploaded' status={'backup': 'ok', 'unpack': 'ok', 'upload': 'ok'}
[149.05] Checking ...
        ... on /srv/pbench/archive/fs-version-001/dhcp31-44.perf.lab.eng.bos.redhat.com/fio_rw_2018.02.01T22.40.57.tar.xz
        ... on /srv/pbench/archive/fs-version-001/ctlrA/linpack_mock_2020.02.28T19.10.55.tar.xz
        ... on /srv/pbench/archive/fs-version-001/ansible-host/pbench-user-benchmark_example-vmstat_2018.10.24T14.38.18.tar.xz
                state='Indexed' status={'backup': 'ok', 'index': 'ok', 'upload': 'ok'}
        ... on /srv/pbench/archive/fs-version-001/perf122.perf.lab.eng.bos.redhat.com/trafficgen_basic-forwarding-example_tg:trex-profile_pf:forwarding_test.json_ml:5_tt:bs__2019-08-27T14:58:38.tar.xz
        ... on /srv/pbench/archive/fs-version-001/rhel8-1/uperf_rhel8.1_4.18.0-107.el8_snap4_25gb_virt_2019.06.21T01.28.57.tar.xz
    Indexed /srv/pbench/archive/fs-version-001/dhcp31-44.perf.lab.eng.bos.redhat.com/fio_rw_2018.02.01T22.40.57.tar.xz
    Indexed /srv/pbench/archive/fs-version-001/ctlrA/linpack_mock_2020.02.28T19.10.55.tar.xz
    Indexed /srv/pbench/archive/fs-version-001/perf122.perf.lab.eng.bos.redhat.com/trafficgen_basic-forwarding-example_tg:trex-profile_pf:forwarding_test.json_ml:5_tt:bs__2019-08-27T14:58:38.tar.xz
    Indexed /srv/pbench/archive/fs-version-001/rhel8-1/uperf_rhel8.1_4.18.0-107.el8_snap4_25gb_virt_2019.06.21T01.28.57.tar.xz
[209.05] Checking ...
        ... on /srv/pbench/archive/fs-version-001/ansible-host/pbench-user-benchmark_example-vmstat_2018.10.24T14.38.18.tar.xz
                state='Indexed' status={'backup': 'ok', 'index': 'ok', 'upload': 'ok'}
[269.04] Checking ...
        ... on /srv/pbench/archive/fs-version-001/ansible-host/pbench-user-benchmark_example-vmstat_2018.10.24T14.38.18.tar.xz
                state='Indexed' status={'backup': 'ok', 'index': 'ok', 'upload': 'ok'}
[329.06] Checking ...
        ... on /srv/pbench/archive/fs-version-001/ansible-host/pbench-user-benchmark_example-vmstat_2018.10.24T14.38.18.tar.xz
                state='Indexed' status={'backup': 'ok', 'index': 'ok', 'upload': 'ok'}
FAILED