index out of range

[AGFeldman]

I get the following error when running cmd/clipper-app-runner/main.go:

panic: runtime error: index out of range

goroutine 1 [running]:
github.com/kevinburke/clipper.setNickSerialNumber(<redacted for bug report>)
    /Users/me/go/src/github.com/kevinburke/clipper/html.go:57
github.com/kevinburke/clipper.getCards(<redacted for bug report>)
    /Users/me/go/src/github.com/kevinburke/clipper/html.go:171
github.com/kevinburke/clipper.(*Client).cards(<redacted for bug report>)
    /Users/me/go/src/github.com/kevinburke/clipper/clipper.go:517
github.com/kevinburke/clipper.(*Client).Cards(<redacted for bug report>)
    /Users/me/go/src/github.com/kevinburke/clipper/clipper.go:405
main.main()
    /Users/me/go/src/github.com/kevinburke/clipper/cmd/clipper-app-runner/main.go:49
exit status 2

Maybe this is because tok is reset while its attributes are being iterated through