The test platform_CUPSDaemon is in the bvt-inline suite.
A cursory glance at the purpose of this test suggests that's
the wrong suite, and that bvt-cq would be preferable.

Here are the relevant criteria for a test in bvt-inline
(taken from test_suites/control.bvt-inline in the Autotest
sources):
 2. A test failure should indicate one or more of the following
    impacts is possible:
     * The failure may impact the stability of the test lab.
     * The failure may prevent discovery of other bugs.
     * The failure may block ordinary development tasks.

That is, bvt-inline is meant to find major test-stoppers.
The focus is on login and security tests.  Operationally,
a failure in bvt-inline is meant to trigger engagement
from the sheriffs.  Failures in this suite also block
all follow-on testing of other features; the build is
classified as DOA.

Here are the relevant criteria for a test in bvt-cq
(taken from test_suites/control.bvt-cq in the Autotest
sources):
 2. A test failure should indicate that the product is not fit for
    release on any channel.

The bvt-cq test is meant to find bugs in specific subsystems
that while critical, don't prevent using the system for most
testing or development purposes.  CLs must pass bvt-cq to be
accepted into the tree, but failures in the canary should
generally be treated as "file a bug against the failing subsystem."