Add missing error propagation

Signed-off-by: Daniel Farina <daniel@fdr.io>
Remove superfluous blank-bindings

Signed-off-by: Daniel Farina <daniel@fdr.io>
Add explicit runtime.Gosched to prevent starvation

Signed-off-by: Daniel Farina <daniel@fdr.io>
Fix Bundle swapout

Busted because I forgot that it's a by-pointer field MiniStats.  A
demonstration in a way which := with type inference can be somewhat
deceptive in some scenarios.

Signed-off-by: Daniel Farina <daniel@fdr.io>