Bug#970184: initramfs-tools: amd64-specific autopkgtests need to be skipped on !amd64
The initramfs-tools autopkgtests now fail on arm64 (and would fail
on other non-amd64 architectures, if we had test runners for them)
because the test-dependencies are not installable. By default, the CI
infrastructure considers this to be a test failure.
Please add "Restrictions: skip-not-installable" to the amd64-* tests, so
that they will be skipped if the test-dependencies are uninstallable.
Alternatively, if you want to diagnose uninstallability on amd64
as a test failure, you could use "Restrictions: skippable", depend
on "linux-image-amd64 [amd64]", and make the test script exit 77 on
for more details.