https://jenkins.juju.canonical.com/view/unit%20tests/job/RunUnittests-race-amd64/2540/testReport/github/com_juju_juju_worker_multiwatcher/TestPackage/
fatal error: checkptr: unsafe pointer conversion
goroutine 32 [running]:
runtime.throw(0x2d2edf4, 0x23)
/snap/go/5830/src/runtime/panic.go:1116 +0x72 fp=0xc0005394c0 sp=0xc000539490 pc=0x446e22
runtime.checkptrAlignment(0xc0006d7600, 0x2bda600, 0x1)
/snap/go/5830/src/runtime/checkptr.go:20 +0xc9 fp=0xc0005394f0 sp=0xc0005394c0 pc=0x417e39
github.com/juju/juju/worker/multiwatcher_test.(*fakeStateTracker).pool(...)
/workspace/_build/src/github.com/juju/juju/worker/multiwatcher/manifold_test.go:160
github.com/juju/juju/worker/multiwatcher_test.(*fakeStateTracker).Use(0xc0006d7600, 0x2cf2398, 0x5, 0x2919180)
/workspace/_build/src/github.com/juju/juju/worker/multiwatcher/manifold_test.go:155 +0x4e fp=0xc000539518 sp=0xc0005394f0 pc=0x280760e
github.com/juju/juju/worker/multiwatcher.ManifoldConfig.start(0x2cf2398, 0x5, 0x31ea4e0, 0xc00027aa80, 0x31e0520, 0xc00083a960, 0xc00083a970, 0x2dee7d0, 0x31a66e0, 0xc00083a990, ...)
/workspace/_build/src/github.com/juju/juju/worker/multiwatcher/manifold.go:82 +0x157 fp=0xc000539600 sp=0xc000539518 pc=0x27dde37
github.com/juju/juju/worker/multiwatcher.ManifoldConfig.start-fm(0x31a66e0, 0xc00083a990, 0x31ea4e0, 0xc00027aa80, 0x31e0520, 0xc00083a960)
/workspace/_build/src/github.com/juju/juju/worker/multiwatcher/manifold.go:73 +0xd2 fp=0xc0005396e0 sp=0xc000539600 pc=0x27eb2e2
github.com/juju/juju/worker/multiwatcher_test.(*ManifoldSuite).TestNewWorkerArgs(0xc0005e2240, 0xc0002b9950)
/workspace/_build/src/github.com/juju/juju/worker/multiwatcher/manifold_test.go:118 +0x404 fp=0xc000539a40 sp=0xc0005396e0 pc=0x28067e4
runtime.call32(0xc0006c3a10, 0xc000199038, 0xc00083a4c0, 0x1000000010)
/snap/go/5830/src/runtime/asm_amd64.s:539 +0x3b fp=0xc000539a70 sp=0xc000539a40 pc=0x47994b
reflect.Value.call(0x2c7bfe0, 0xc0005e2240, 0x4213, 0x2cf0aae, 0x4, 0xc0000c4f18, 0x1, 0x1, 0xc0000c4d40, 0x279aefe, ...)
/snap/go/5830/src/reflect/value.go:460 +0x967 fp=0xc000539cb8 sp=0xc000539a70 pc=0x520337
reflect.Value.Call(0x2c7bfe0, 0xc0005e2240, 0x4213, 0xc0000c4f18, 0x1, 0x1, 0xc0002b9a40, 0x60d7030fdbd, 0x2a377b5d)
/snap/go/5830/src/reflect/value.go:321 +0xd4 fp=0xc000539d50 sp=0xc000539cb8 pc=0x51f6c4
gopkg.in/check%2ev1.(*suiteRunner).forkTest.func1(0xc0002b9950)
/workspace/_build/src/github.com/juju/juju/vendor/gopkg.in/check.v1/check.go:781 +0xa0b fp=0xc000539f40 sp=0xc000539d50 pc=0x27add9b
gopkg.in/check%2ev1.(*suiteRunner).forkCall.func1(0xc00012c280, 0xc0002b9950, 0xc0006d75e0)
/workspace/_build/src/github.com/juju/juju/vendor/gopkg.in/check.v1/check.go:675 +0xda fp=0xc000539fc8 sp=0xc000539f40 pc=0x27ad04a
runtime.goexit()
/snap/go/5830/src/runtime/asm_amd64.s:1373 +0x1 fp=0xc000539fd0 sp=0xc000539fc8 pc=0x47b6a1
created by gopkg.in/check%2ev1.(*suiteRunner).forkCall
/workspace/_build/src/github.com/juju/juju/vendor/gopkg.in/check.v1/check.go:672 +0x44e
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