refactor(mock): derive Debug for MockStream
refactor(mock): derive Debug for MockStream

tshepang/hyper,Twey/hyper,yazaddaruvala/hyper,yangxingpping/hyper,hannobraun/hyper,sfackler/hyper,mfeckie/hyper,hannobraun/hyper,bheesham/hyper,Twey/hyper,nickgonzales/hyper,hyperium/hyper,fhahn/hyper,Keats/hyper,Keats/hyper,golddranks/hyper,achanda/hyper,jmmaranan/hyper,hannobraun/hyper,erickt/hyper,markuskobler/hyper,markuskobler/hyper,tshepang/hyper,hyperium/hyper,Keats/hyper,fengsp/hyper,TimNN/hyper,hyperium/hyper,golddranks/hyper,markuskobler/hyper,yazaddaruvala/hyper,softprops/hyper,tshepang/hyper,youprofit/hyper,peterhj/hyper,golddranks/hyper,nickgonzales/hyper,ianks/hyper,nickgonzales/hyper,Twey/hyper