tests: Register teardown only when DUT is reachable

[rcooke-warwick]

At the end of the unmanaged OS test suite, we retreive the journal logs from the DUT. If the device is offline, it took a long time to report the error and caused the test job to hang for longer than necessary. This alters the suite by reducing the number of times the testbot retries to retrieve the logs, if it fails to do so

Change-type: patch
Signed-off-by: Ryan Cooke ryan@balena.io

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[resin-jenkins]

Can one of the admins verify this patch?

[klutchell]

@resin-jenkins add to whitelist

[klutchell]

@resin-jenkins retest this please

[klutchell]

lgtm

[rcooke-warwick]

@balena-ci rebase

[klutchell]

@balena-ci rebase

[klutchell]

@balena-ci rebase

[vipulgupta2048]

@resin-jenkins retest this please

[klutchell]

@resin-jenkins retest this please

[klutchell]

@resin-jenkins retest this please