$ pulumi refresh
Please choose a stack, or create a new one: myapp
warning: could not detect GitHub project information: could not read origin information: remote not found
Previewing refresh of stack 'myapp'
panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x0 pc=0xabc009]

goroutine 61 [running]:
<http://github.com/pulumi/pulumi/pkg/backend/cloud.(*tokenSource).GetToken(...)|github.com/pulumi/pulumi/pkg/backend/cloud.(*tokenSource).GetToken(...)>
	/home/travis/gopath/src/github.com/pulumi/pulumi/pkg/backend/cloud/state.go:87
<http://github.com/pulumi/pulumi/pkg/backend/cloud.(*cloudSnapshotPersister).Save|github.com/pulumi/pulumi/pkg/backend/cloud.(*cloudSnapshotPersister).Save>(0xc420327c80, 0xc42012a620, 0xc420078f88, 0xc4203b5c78)
	/home/travis/gopath/src/github.com/pulumi/pulumi/pkg/backend/cloud/snapshot.go:32 +0x79
<http://github.com/pulumi/pulumi/pkg/backend.(*SnapshotManager).mutate.func1()|github.com/pulumi/pulumi/pkg/backend.(*SnapshotManager).mutate.func1()>
	/home/travis/gopath/src/github.com/pulumi/pulumi/pkg/backend/snapshot.go:80 +0x6d
<http://github.com/pulumi/pulumi/pkg/backend.NewSnapshotManager.func1(0xc4202db680)|github.com/pulumi/pulumi/pkg/backend.NewSnapshotManager.func1(0xc4202db680)>
	/home/travis/gopath/src/github.com/pulumi/pulumi/pkg/backend/snapshot.go:319 +0x49
created by <http://github.com/pulumi/pulumi/pkg/backend.NewSnapshotManager|github.com/pulumi/pulumi/pkg/backend.NewSnapshotManager>
	/home/travis/gopath/src/github.com/pulumi/pulumi/pkg/backend/snapshot.go:317 +0x114