Use if-let in join_layout.
Use if-let in join_layout.

dvberkel/servo,mdibaiee/servo,A-deLuna/servo,zentner-kyle/servo,paulrouget/servo,notriddle/servo,bjwbell/servo,saneyuki/servo,emilio/servo,steveklabnik/servo,steveklabnik/servo,GyrosOfWar/servo,luniv/servo,mbrubeck/servo,zhangjunlei26/servo,sadmansk/servo,pyecs/servo,tschneidereit/servo,zhangjunlei26/servo,ruud-v-a/servo,notriddle/servo,s142857/servo,nerith/servo,avadacatavra/servo,srbhklkrn/SERVOENGINE,tschneidereit/servo,paulrouget/servo,saneyuki/servo,DominoTree/servo,ryancanhelpyou/servo,evilpie/servo,dhananjay92/servo,pgonda/servo,dvberkel/servo,wartman4404/servo,mdibaiee/servo,larsbergstrom/servo,upsuper/servo,caldwell/servo,mattnenterprise/servo,ConnorGBrewster/servo,GyrosOfWar/servo,canaltinova/servo,eddyb/servo,eddyb/servo,mbrubeck/servo,ConnorGBrewster/servo,eddyb/servo,canaltinova/servo,youprofit/servo,upsuper/servo,luniv/servo,GreenRecycleBin/servo,dati91/servo,boghison/servo,mdibaiee/servo,WriterOfAlicrow/servo,jimberlage/servo,sadmansk/servo,pyfisch/servo,steveklabnik/servo,pyfisch/servo,jdramani/servo,brendandahl/servo,luniv/servo,codemac/servo,wpgallih/servo,AnthonyBroadCrawford/servo,sadmansk/servo,saratang/servo,anthgur/servo,rixrix/servo,s142857/servo,dvberkel/servo,AnthonyBroadCrawford/servo,dagnir/servo,jimberlage/servo,snf/servo,fiji-flo/servo,huonw/servo,splav/servo,j3parker/servo,rnestler/servo,kindersung/servo,dmarcos/servo,walac/servo,indykish/servo,pgonda/servo,aidanhs/servo,ruud-v-a/servo,pgonda/servo,dvberkel/servo,Adenilson/prototype-viewing-distance,walac/servo,AnthonyBroadCrawford/servo,rixrix/servo,KiChjang/servo,mbrubeck/servo,walac/servo,vks/servo,splav/servo,notriddle/servo,zhangjunlei26/servo,dati91/servo,KiChjang/servo,emilio/servo,rentongzhang/servo,indykish/servo,akosel/servo,DominoTree/servo,anthgur/servo,saratang/servo,samfoo/servo,pyecs/servo,youprofit/servo,paulrouget/servo,CJ8664/servo,thiagopnts/servo,nrc/servo,dmarcos/servo,wartman4404/servo,srbhklkrn/SERVOENGINE,pgonda/servo,tschneidereit/servo,echochamber/servo,karlito40/servo,RenaudParis/servo,kindersung/servo,canaltinova/servo,snf/servo,nnethercote/servo,pyfisch/servo,echochamber/servo,dmarcos/servo,tafia/servo,fiji-flo/servo,thiagopnts/servo,deokjinkim/servo,dhananjay92/servo,tempbottle/servo,nerith/servo,SimonSapin/servo,meh/servo,karlito40/servo,vks/servo,aidanhs/servo,tschneidereit/servo,nick-thompson/servo,dmarcos/servo,akosel/servo,canaltinova/servo,saneyuki/servo,cbrewster/servo,echochamber/servo,GreenRecycleBin/servo,dhananjay92/servo,boghison/servo,A-deLuna/servo,jdramani/servo,steveklabnik/servo,brendandahl/servo,thiagopnts/servo,nnethercote/servo,jimberlage/servo,KiChjang/servo,mbrubeck/servo,aweinstock314/servo,codemac/servo,ConnorGBrewster/servo,szeged/servo,mattnenterprise/servo,mt2d2/servo,WriterOfAlicrow/servo,nnethercote/servo,samfoo/servo,larsbergstrom/servo,saneyuki/servo,walac/servo,walac/servo,splav/servo,RenaudParis/servo,g-k/servo,larsbergstrom/servo,A-deLuna/servo,rnestler/servo,deokjinkim/servo,tafia/servo,akosel/servo,szeged/servo,aidanhs/servo,dsandeephegde/servo,A-deLuna/servo,tempbottle/servo,ConnorGBrewster/servo,Adenilson/prototype-viewing-distance,srbhklkrn/SERVOENGINE,SimonSapin/servo,nrc/servo,sadmansk/servo,tempbottle/servo,s142857/servo,s142857/servo,WriterOfAlicrow/servo,cbrewster/servo,codemac/servo,mdibaiee/servo,hyowon/servo,cbrewster/servo,KiChjang/servo,deokjinkim/servo,fiji-flo/servo,caldwell/servo,rentongzhang/servo,paulrouget/servo,hyowon/servo,larsbergstrom/servo,ConnorGBrewster/servo,upsuper/servo,jlegendary/servo,saratang/servo,evilpie/servo,anthgur/servo,aweinstock314/servo,ConnorGBrewster/servo,zhangjunlei26/servo,dati91/servo,Adenilson/prototype-viewing-distance,jlegendary/servo,indykish/servo,luniv/servo,WriterOfAlicrow/servo,hyowon/servo,caldwell/servo,boghison/servo,rentongzhang/servo,kindersung/servo,mattnenterprise/servo,sadmansk/servo,upsuper/servo,aweinstock314/servo,pgonda/servo,wartman4404/servo,larsbergstrom/servo,huonw/servo,meh/servo,tafia/servo,thiagopnts/servo,saratang/servo,mt2d2/servo,paulrouget/servo,notriddle/servo,g-k/servo,CJ8664/servo,rixrix/servo,saneyuki/servo,szeged/servo,jimberlage/servo,akosel/servo,mdibaiee/servo,runarberg/servo,bjwbell/servo,ryancanhelpyou/servo,nnethercote/servo,jdramani/servo,pgonda/servo,KiChjang/servo,paulrouget/servo,rixrix/servo,mattnenterprise/servo,notriddle/servo,sadmansk/servo,j3parker/servo,jimberlage/servo,zentner-kyle/servo,nerith/servo,tafia/servo,nrc/servo,wpgallih/servo,hyowon/servo,brendandahl/servo,splav/servo,jgraham/servo,rixrix/servo,canaltinova/servo,steveklabnik/servo,jdramani/servo,GyrosOfWar/servo,dsandeephegde/servo,dati91/servo,cbrewster/servo,fiji-flo/servo,vks/servo,thiagopnts/servo,karlito40/servo,notriddle/servo,kindersung/servo,GyrosOfWar/servo,SimonSapin/servo,pyfisch/servo,szeged/servo,zhangjunlei26/servo,jimberlage/servo,GreenRecycleBin/servo,ruud-v-a/servo,j3parker/servo,rnestler/servo,nrc/servo,dvberkel/servo,vks/servo,tempbottle/servo,jimberlage/servo,ryancanhelpyou/servo,jgraham/servo,evilpie/servo,zhangjunlei26/servo,upsuper/servo,g-k/servo,szeged/servo,nnethercote/servo,wartman4404/servo,vks/servo,youprofit/servo,dsandeephegde/servo,g-k/servo,CJ8664/servo,akosel/servo,larsbergstrom/servo,brendandahl/servo,evilpie/servo,cbrewster/servo,mattnenterprise/servo,caldwell/servo,mbrubeck/servo,notriddle/servo,canaltinova/servo,karlito40/servo,caldwell/servo,jlegendary/servo,dvberkel/servo,meh/servo,rentongzhang/servo,evilpie/servo,nnethercote/servo,saneyuki/servo,tempbottle/servo,saratang/servo,wartman4404/servo,dati91/servo,AnthonyBroadCrawford/servo,dmarcos/servo,bjwbell/servo,pyfisch/servo,aidanhs/servo,ryancanhelpyou/servo,j3parker/servo,snf/servo,szeged/servo,evilpie/servo,peterjoel/servo,karlito40/servo,meh/servo,avadacatavra/servo,jlegendary/servo,GreenRecycleBin/servo,mattnenterprise/servo,DominoTree/servo,KiChjang/servo,ruud-v-a/servo,splav/servo,caldwell/servo,CJ8664/servo,s142857/servo,fiji-flo/servo,WriterOfAlicrow/servo,emilio/servo,AnthonyBroadCrawford/servo,rentongzhang/servo,samfoo/servo,RenaudParis/servo,brendandahl/servo,j3parker/servo,youprofit/servo,youprofit/servo,wpgallih/servo,bjwbell/servo,dagnir/servo,emilio/servo,srbhklkrn/SERVOENGINE,upsuper/servo,peterjoel/servo,tempbottle/servo,j3parker/servo,larsbergstrom/servo,eddyb/servo,aweinstock314/servo,tafia/servo,peterjoel/servo,luniv/servo,thiagopnts/servo,walac/servo,tafia/servo,upsuper/servo,zentner-kyle/servo,A-deLuna/servo,boghison/servo,dagnir/servo,pyfisch/servo,A-deLuna/servo,dsandeephegde/servo,nrc/servo,DominoTree/servo,vks/servo,peterjoel/servo,SimonSapin/servo,nrc/servo,kindersung/servo,mt2d2/servo,g-k/servo,ryancanhelpyou/servo,canaltinova/servo,thiagopnts/servo,mbrubeck/servo,youprofit/servo,tschneidereit/servo,cbrewster/servo,rnestler/servo,jgraham/servo,anthgur/servo,rnestler/servo,mt2d2/servo,brendandahl/servo,bjwbell/servo,akosel/servo,upsuper/servo,jlegendary/servo,cbrewster/servo,runarberg/servo,sadmansk/servo,WriterOfAlicrow/servo,srbhklkrn/SERVOENGINE,wpgallih/servo,DominoTree/servo,zentner-kyle/servo,indykish/servo,dsandeephegde/servo,Adenilson/prototype-viewing-distance,samfoo/servo,tschneidereit/servo,ruud-v-a/servo,pyecs/servo,rnestler/servo,rixrix/servo,RenaudParis/servo,deokjinkim/servo,DominoTree/servo,snf/servo,AnthonyBroadCrawford/servo,dagnir/servo,cbrewster/servo,GreenRecycleBin/servo,saneyuki/servo,caldwell/servo,brendandahl/servo,canaltinova/servo,larsbergstrom/servo,jdramani/servo,DominoTree/servo,wartman4404/servo,echochamber/servo,wpgallih/servo,echochamber/servo,saneyuki/servo,KiChjang/servo,huonw/servo,indykish/servo,RenaudParis/servo,rentongzhang/servo,KiChjang/servo,mt2d2/servo,runarberg/servo,GyrosOfWar/servo,huonw/servo,jgraham/servo,jdramani/servo,bjwbell/servo,emilio/servo,srbhklkrn/SERVOENGINE,GreenRecycleBin/servo,mattnenterprise/servo,tafia/servo,aidanhs/servo,aidanhs/servo,CJ8664/servo,pyecs/servo,rnestler/servo,wpgallih/servo,runarberg/servo,sadmansk/servo,g-k/servo,DominoTree/servo,rixrix/servo,echochamber/servo,jgraham/servo,srbhklkrn/SERVOENGINE,peterjoel/servo,samfoo/servo,zentner-kyle/servo,ConnorGBrewster/servo,nerith/servo,pyecs/servo,peterjoel/servo,dagnir/servo,avadacatavra/servo,dmarcos/servo,splav/servo,codemac/servo,peterjoel/servo,akosel/servo,saratang/servo,luniv/servo,aweinstock314/servo,rixrix/servo,zhangjunlei26/servo,anthgur/servo,szeged/servo,peterjoel/servo,huonw/servo,Adenilson/prototype-viewing-distance,szeged/servo,nrc/servo,DominoTree/servo,notriddle/servo,hyowon/servo,huonw/servo,g-k/servo,pyecs/servo,DominoTree/servo,szeged/servo,peterjoel/servo,mt2d2/servo,jlegendary/servo,eddyb/servo,dhananjay92/servo,nick-thompson/servo,GreenRecycleBin/servo,nnethercote/servo,RenaudParis/servo,nick-thompson/servo,runarberg/servo,walac/servo,aweinstock314/servo,splav/servo,luniv/servo,runarberg/servo,eddyb/servo,AnthonyBroadCrawford/servo,tempbottle/servo,jimberlage/servo,paulrouget/servo,WriterOfAlicrow/servo,boghison/servo,GyrosOfWar/servo,evilpie/servo,wpgallih/servo,indykish/servo,hyowon/servo,mt2d2/servo,snf/servo,ryancanhelpyou/servo,jdramani/servo,CJ8664/servo,nnethercote/servo,echochamber/servo,emilio/servo,mdibaiee/servo,paulrouget/servo,wpgallih/servo,evilpie/servo,RenaudParis/servo,aweinstock314/servo,GyrosOfWar/servo,snf/servo,dati91/servo,anthgur/servo,jlegendary/servo,boghison/servo,meh/servo,pyfisch/servo,nick-thompson/servo,dsandeephegde/servo,anthgur/servo,dagnir/servo,dati91/servo,aidanhs/servo,codemac/servo,pgonda/servo,saneyuki/servo,nick-thompson/servo,jimberlage/servo,s142857/servo,deokjinkim/servo,dsandeephegde/servo,hyowon/servo,kindersung/servo,saratang/servo,avadacatavra/servo,indykish/servo,nerith/servo,dvberkel/servo,steveklabnik/servo,dhananjay92/servo,nnethercote/servo,SimonSapin/servo,Adenilson/prototype-viewing-distance,deokjinkim/servo,dsandeephegde/servo,rixrix/servo,avadacatavra/servo,notriddle/servo,samfoo/servo,steveklabnik/servo,GreenRecycleBin/servo,paulrouget/servo,mbrubeck/servo,pyecs/servo,dagnir/servo,huonw/servo,avadacatavra/servo,mattnenterprise/servo,zhangjunlei26/servo,anthgur/servo,dati91/servo,szeged/servo,nerith/servo,bjwbell/servo,s142857/servo,runarberg/servo,fiji-flo/servo,wartman4404/servo,samfoo/servo,codemac/servo,tschneidereit/servo,nick-thompson/servo,SimonSapin/servo,splav/servo,pyfisch/servo,nick-thompson/servo,peterjoel/servo,larsbergstrom/servo,zentner-kyle/servo,emilio/servo,evilpie/servo,mdibaiee/servo,SimonSapin/servo,karlito40/servo,thiagopnts/servo,SimonSapin/servo,zentner-kyle/servo,paulrouget/servo,eddyb/servo,rentongzhang/servo,meh/servo,splav/servo,indykish/servo,emilio/servo,ConnorGBrewster/servo,KiChjang/servo,ryancanhelpyou/servo,kindersung/servo,meh/servo,Adenilson/prototype-viewing-distance,rnestler/servo,snf/servo,fiji-flo/servo,GreenRecycleBin/servo,boghison/servo,emilio/servo,vks/servo,zhangjunlei26/servo,eddyb/servo,saneyuki/servo,fiji-flo/servo,deokjinkim/servo,CJ8664/servo,jgraham/servo,CJ8664/servo,jgraham/servo,dhananjay92/servo,A-deLuna/servo,nerith/servo,notriddle/servo,avadacatavra/servo,avadacatavra/servo,larsbergstrom/servo,dhananjay92/servo,youprofit/servo,codemac/servo,dmarcos/servo,karlito40/servo,pyfisch/servo,nnethercote/servo,mbrubeck/servo,pyfisch/servo,j3parker/servo,KiChjang/servo,indykish/servo,splav/servo,ruud-v-a/servo,emilio/servo,wpgallih/servo