metadata_test consistently fails in ppc64el unit tests

[Curtis Hovey]

run-unit-tests-trusty-ppc64el
metadata_test consistently fails like this
FAIL: metadata_test.go:95: TestBuildMetadata.pN53_github_com_juju_juju_state_backups_test.metadataSuite

metadata_test.go:116:
    c.Check(meta.Finished.Unix(), gc.Equals, finished)
... obtained int64 = 1417888093
... expected syscall.Timespec_sec_t = 1417888093

The last pass was gitbranch:master:github.com/juju/juju b127f191, the first fail is gitbranch:master:github.com/juju/juju 009aef59. The suspected commits are
    commit 4ee389a Merge pull request #1242 from mattyw/metric-credentials-api
    commit 88e2ed5 Merge pull request #1239 from johnweldon/5-enqueue-action-requires-name
    commit a7e52a1 Merge pull request #1227 from johnweldon/0-action-testing
    commit 60c8413 Merge pull request #1276 from ericsnowcurrently/replicaset-IsReady-drop-condition
    commit 009aef5 Merge pull request #1241 from wallyworld/update-server-certificate

[Eric Snow (ericsnowcurrently)]

https://github.com/juju/juju/commit/99c2bcd0de788321a73d1c32ed5c114dbe9adb89 (merged via 216aa12) uses syscall.Stat_t, which doesn't work on Windows. I'll work up a fix.

[John George (jog)]

Similar failure on run-unit-tests-precise-i386
metadata_test.go:116:
    c.Check(meta.Finished.Unix(), gc.Equals, finished)
... obtained int64 = 1418034506
... expected int32 = 1418034506

[Eric Snow (ericsnowcurrently)]

http://reviews.vapour.ws/r/599/

[Eric Snow (ericsnowcurrently)]

Still failing the same way...

[Eric Snow (ericsnowcurrently)]

http://reviews.vapour.ws/r/600/

[Eric Snow (ericsnowcurrently)]

The failing test has passed:

http://juju-ci.vapour.ws:8080/job/run-unit-tests-trusty-ppc64el/2086/console