There's no 'platform' in package_targets.py, only labels.
There's no 'platform' in package_targets.py, only labels.

thunderboltsid/grpc,PeterFaiman/ruby-grpc-minimal,geffzhang/grpc,jtattermusch/grpc,ncteisen/grpc,a-veitch/grpc,yang-g/grpc,pszemus/grpc,daniel-j-born/grpc,philcleveland/grpc,pszemus/grpc,infinit/grpc,a-veitch/grpc,yugui/grpc,MakMukhi/grpc,thinkerou/grpc,adelez/grpc,donnadionne/grpc,dgquintas/grpc,yang-g/grpc,ejona86/grpc,MakMukhi/grpc,y-zeng/grpc,dklempner/grpc,jcanizales/grpc,rjshade/grpc,perumaalgoog/grpc,wcevans/grpc,chrisdunelm/grpc,pszemus/grpc,LuminateWireless/grpc,Vizerai/grpc,deepaklukose/grpc,deepaklukose/grpc,perumaalgoog/grpc,daniel-j-born/grpc,geffzhang/grpc,malexzx/grpc,vjpai/grpc,kpayson64/grpc,dgquintas/grpc,infinit/grpc,murgatroid99/grpc,mehrdada/grpc,LuminateWireless/grpc,firebase/grpc,jtattermusch/grpc,vjpai/grpc,fuchsia-mirror/third_party-grpc,matt-kwong/grpc,kriswuollett/grpc,pszemus/grpc,sreecha/grpc,dklempner/grpc,stanley-cheung/grpc,kskalski/grpc,deepaklukose/grpc,kumaralokgithub/grpc,grani/grpc,malexzx/grpc,jboeuf/grpc,MakMukhi/grpc,zhimingxie/grpc,Vizerai/grpc,jboeuf/grpc,firebase/grpc,muxi/grpc,thinkerou/grpc,zhimingxie/grpc,apolcyn/grpc,ppietrasa/grpc,hstefan/grpc,thunderboltsid/grpc,royalharsh/grpc,mehrdada/grpc,yang-g/grpc,soltanmm/grpc,jtattermusch/grpc,grpc/grpc,makdharma/grpc,soltanmm/grpc,pmarks-net/grpc,kskalski/grpc,nicolasnoble/grpc,sreecha/grpc,yang-g/grpc,sreecha/grpc,baylabs/grpc,dgquintas/grpc,grani/grpc,deepaklukose/grpc,andrewpollock/grpc,yang-g/grpc,PeterFaiman/ruby-grpc-minimal,ipylypiv/grpc,jboeuf/grpc,PeterFaiman/ruby-grpc-minimal,jcanizales/grpc,mehrdada/grpc,makdharma/grpc,greasypizza/grpc,malexzx/grpc,Vizerai/grpc,carl-mastrangelo/grpc,nicolasnoble/grpc,jcanizales/grpc,infinit/grpc,matt-kwong/grpc,wcevans/grpc,infinit/grpc,arkmaxim/grpc,jboeuf/grpc,simonkuang/grpc,stanley-cheung/grpc,apolcyn/grpc,ejona86/grpc,stanley-cheung/grpc,pmarks-net/grpc,jcanizales/grpc,wcevans/grpc,carl-mastrangelo/grpc,quizlet/grpc,donnadionne/grpc,jcanizales/grpc,deepaklukose/grpc,yugui/grpc,ppietrasa/grpc,pmarks-net/grpc,quizlet/grpc,ncteisen/grpc,7anner/grpc,vsco/grpc,mehrdada/grpc,fuchsia-mirror/third_party-grpc,hstefan/grpc,ejona86/grpc,PeterFaiman/ruby-grpc-minimal,muxi/grpc,quizlet/grpc,LuminateWireless/grpc,a-veitch/grpc,soltanmm/grpc,fuchsia-mirror/third_party-grpc,firebase/grpc,a11r/grpc,dgquintas/grpc,yang-g/grpc,hstefan/grpc,murgatroid99/grpc,rjshade/grpc,ejona86/grpc,nicolasnoble/grpc,pszemus/grpc,apolcyn/grpc,kpayson64/grpc,malexzx/grpc,matt-kwong/grpc,rjshade/grpc,dgquintas/grpc,ppietrasa/grpc,muxi/grpc,baylabs/grpc,murgatroid99/grpc,stanley-cheung/grpc,mehrdada/grpc,murgatroid99/grpc,ppietrasa/grpc,dklempner/grpc,yugui/grpc,kpayson64/grpc,y-zeng/grpc,Crevil/grpc,pszemus/grpc,dklempner/grpc,ctiller/grpc,a11r/grpc,Crevil/grpc,philcleveland/grpc,donnadionne/grpc,grani/grpc,ctiller/grpc,andrewpollock/grpc,vjpai/grpc,grpc/grpc,chrisdunelm/grpc,ejona86/grpc,thinkerou/grpc,quizlet/grpc,murgatroid99/grpc,zhimingxie/grpc,royalharsh/grpc,kumaralokgithub/grpc,greasypizza/grpc,dklempner/grpc,carl-mastrangelo/grpc,thunderboltsid/grpc,y-zeng/grpc,nicolasnoble/grpc,carl-mastrangelo/grpc,andrewpollock/grpc,msmania/grpc,PeterFaiman/ruby-grpc-minimal,ipylypiv/grpc,deepaklukose/grpc,yongni/grpc,ncteisen/grpc,chrisdunelm/grpc,yugui/grpc,kriswuollett/grpc,wcevans/grpc,chrisdunelm/grpc,baylabs/grpc,vjpai/grpc,grpc/grpc,ipylypiv/grpc,infinit/grpc,ppietrasa/grpc,murgatroid99/grpc,perumaalgoog/grpc,wcevans/grpc,malexzx/grpc,philcleveland/grpc,thinkerou/grpc,kumaralokgithub/grpc,a-veitch/grpc,ncteisen/grpc,jtattermusch/grpc,jboeuf/grpc,kskalski/grpc,grani/grpc,hstefan/grpc,muxi/grpc,makdharma/grpc,perumaalgoog/grpc,deepaklukose/grpc,nicolasnoble/grpc,rjshade/grpc,grpc/grpc,firebase/grpc,a11r/grpc,stanley-cheung/grpc,dgquintas/grpc,sreecha/grpc,PeterFaiman/ruby-grpc-minimal,PeterFaiman/ruby-grpc-minimal,vjpai/grpc,muxi/grpc,fuchsia-mirror/third_party-grpc,murgatroid99/grpc,grpc/grpc,a11r/grpc,kpayson64/grpc,a-veitch/grpc,chrisdunelm/grpc,kumaralokgithub/grpc,baylabs/grpc,zhimingxie/grpc,pmarks-net/grpc,MakMukhi/grpc,jboeuf/grpc,royalharsh/grpc,jcanizales/grpc,royalharsh/grpc,muxi/grpc,yongni/grpc,geffzhang/grpc,7anner/grpc,andrewpollock/grpc,philcleveland/grpc,msmania/grpc,daniel-j-born/grpc,baylabs/grpc,jtattermusch/grpc,yongni/grpc,royalharsh/grpc,grpc/grpc,y-zeng/grpc,arkmaxim/grpc,donnadionne/grpc,ipylypiv/grpc,ctiller/grpc,thinkerou/grpc,geffzhang/grpc,a11r/grpc,7anner/grpc,murgatroid99/grpc,apolcyn/grpc,dklempner/grpc,firebase/grpc,stanley-cheung/grpc,greasypizza/grpc,MakMukhi/grpc,7anner/grpc,quizlet/grpc,pszemus/grpc,ncteisen/grpc,firebase/grpc,simonkuang/grpc,yang-g/grpc,Crevil/grpc,thunderboltsid/grpc,mehrdada/grpc,andrewpollock/grpc,fuchsia-mirror/third_party-grpc,kskalski/grpc,carl-mastrangelo/grpc,Vizerai/grpc,malexzx/grpc,pszemus/grpc,soltanmm-google/grpc,soltanmm/grpc,pszemus/grpc,a-veitch/grpc,arkmaxim/grpc,makdharma/grpc,chrisdunelm/grpc,Crevil/grpc,muxi/grpc,vjpai/grpc,adelez/grpc,matt-kwong/grpc,msmania/grpc,geffzhang/grpc,sreecha/grpc,arkmaxim/grpc,vjpai/grpc,wcevans/grpc,apolcyn/grpc,ipylypiv/grpc,soltanmm-google/grpc,geffzhang/grpc,makdharma/grpc,perumaalgoog/grpc,thunderboltsid/grpc,soltanmm/grpc,PeterFaiman/ruby-grpc-minimal,vsco/grpc,hstefan/grpc,pszemus/grpc,soltanmm-google/grpc,philcleveland/grpc,adelez/grpc,Crevil/grpc,ncteisen/grpc,arkmaxim/grpc,soltanmm/grpc,Vizerai/grpc,carl-mastrangelo/grpc,geffzhang/grpc,ctiller/grpc,a11r/grpc,chrisdunelm/grpc,zhimingxie/grpc,infinit/grpc,sreecha/grpc,donnadionne/grpc,nicolasnoble/grpc,nicolasnoble/grpc,fuchsia-mirror/third_party-grpc,vjpai/grpc,perumaalgoog/grpc,philcleveland/grpc,mehrdada/grpc,yongni/grpc,grpc/grpc,Crevil/grpc,simonkuang/grpc,PeterFaiman/ruby-grpc-minimal,firebase/grpc,ctiller/grpc,royalharsh/grpc,soltanmm-google/grpc,andrewpollock/grpc,fuchsia-mirror/third_party-grpc,deepaklukose/grpc,pmarks-net/grpc,adelez/grpc,kriswuollett/grpc,ncteisen/grpc,pmarks-net/grpc,pmarks-net/grpc,andrewpollock/grpc,stanley-cheung/grpc,firebase/grpc,vsco/grpc,carl-mastrangelo/grpc,kskalski/grpc,baylabs/grpc,firebase/grpc,kpayson64/grpc,Crevil/grpc,jboeuf/grpc,kriswuollett/grpc,thunderboltsid/grpc,msmania/grpc,baylabs/grpc,y-zeng/grpc,thinkerou/grpc,kriswuollett/grpc,chrisdunelm/grpc,jcanizales/grpc,ppietrasa/grpc,perumaalgoog/grpc,andrewpollock/grpc,jboeuf/grpc,soltanmm-google/grpc,vsco/grpc,sreecha/grpc,sreecha/grpc,ctiller/grpc,kriswuollett/grpc,chrisdunelm/grpc,soltanmm-google/grpc,dgquintas/grpc,daniel-j-born/grpc,carl-mastrangelo/grpc,yang-g/grpc,dgquintas/grpc,kumaralokgithub/grpc,yongni/grpc,matt-kwong/grpc,yugui/grpc,kpayson64/grpc,kpayson64/grpc,simonkuang/grpc,jtattermusch/grpc,perumaalgoog/grpc,LuminateWireless/grpc,firebase/grpc,grani/grpc,hstefan/grpc,grani/grpc,vjpai/grpc,grpc/grpc,muxi/grpc,baylabs/grpc,ncteisen/grpc,quizlet/grpc,kumaralokgithub/grpc,quizlet/grpc,donnadionne/grpc,donnadionne/grpc,grpc/grpc,adelez/grpc,daniel-j-born/grpc,vsco/grpc,ipylypiv/grpc,makdharma/grpc,sreecha/grpc,kriswuollett/grpc,Vizerai/grpc,MakMukhi/grpc,Crevil/grpc,yang-g/grpc,ctiller/grpc,quizlet/grpc,baylabs/grpc,apolcyn/grpc,fuchsia-mirror/third_party-grpc,kpayson64/grpc,kskalski/grpc,simonkuang/grpc,soltanmm/grpc,thinkerou/grpc,hstefan/grpc,soltanmm-google/grpc,jtattermusch/grpc,makdharma/grpc,ctiller/grpc,a-veitch/grpc,zhimingxie/grpc,muxi/grpc,sreecha/grpc,soltanmm/grpc,a-veitch/grpc,rjshade/grpc,infinit/grpc,fuchsia-mirror/third_party-grpc,geffzhang/grpc,donnadionne/grpc,apolcyn/grpc,nicolasnoble/grpc,carl-mastrangelo/grpc,arkmaxim/grpc,malexzx/grpc,stanley-cheung/grpc,rjshade/grpc,arkmaxim/grpc,ejona86/grpc,7anner/grpc,philcleveland/grpc,LuminateWireless/grpc,daniel-j-born/grpc,jtattermusch/grpc,MakMukhi/grpc,mehrdada/grpc,ejona86/grpc,donnadionne/grpc,murgatroid99/grpc,stanley-cheung/grpc,muxi/grpc,vsco/grpc,jtattermusch/grpc,a11r/grpc,thunderboltsid/grpc,philcleveland/grpc,7anner/grpc,infinit/grpc,stanley-cheung/grpc,LuminateWireless/grpc,greasypizza/grpc,stanley-cheung/grpc,firebase/grpc,arkmaxim/grpc,royalharsh/grpc,greasypizza/grpc,ejona86/grpc,simonkuang/grpc,fuchsia-mirror/third_party-grpc,adelez/grpc,yongni/grpc,kumaralokgithub/grpc,ctiller/grpc,daniel-j-born/grpc,kskalski/grpc,dklempner/grpc,zhimingxie/grpc,ppietrasa/grpc,y-zeng/grpc,arkmaxim/grpc,philcleveland/grpc,adelez/grpc,7anner/grpc,PeterFaiman/ruby-grpc-minimal,matt-kwong/grpc,kriswuollett/grpc,jboeuf/grpc,yongni/grpc,zhimingxie/grpc,sreecha/grpc,vsco/grpc,donnadionne/grpc,daniel-j-born/grpc,chrisdunelm/grpc,a11r/grpc,ctiller/grpc,ctiller/grpc,pmarks-net/grpc,nicolasnoble/grpc,thinkerou/grpc,msmania/grpc,apolcyn/grpc,grani/grpc,kumaralokgithub/grpc,dgquintas/grpc,jtattermusch/grpc,donnadionne/grpc,jboeuf/grpc,yugui/grpc,dklempner/grpc,muxi/grpc,kskalski/grpc,msmania/grpc,a11r/grpc,murgatroid99/grpc,jcanizales/grpc,soltanmm-google/grpc,rjshade/grpc,ppietrasa/grpc,jtattermusch/grpc,ipylypiv/grpc,yongni/grpc,rjshade/grpc,vsco/grpc,Crevil/grpc,pszemus/grpc,mehrdada/grpc,wcevans/grpc,ejona86/grpc,LuminateWireless/grpc,yugui/grpc,kpayson64/grpc,jtattermusch/grpc,chrisdunelm/grpc,carl-mastrangelo/grpc,y-zeng/grpc,mehrdada/grpc,wcevans/grpc,hstefan/grpc,vjpai/grpc,apolcyn/grpc,carl-mastrangelo/grpc,matt-kwong/grpc,royalharsh/grpc,mehrdada/grpc,Vizerai/grpc,perumaalgoog/grpc,thinkerou/grpc,makdharma/grpc,ipylypiv/grpc,daniel-j-born/grpc,kriswuollett/grpc,msmania/grpc,grani/grpc,firebase/grpc,muxi/grpc,y-zeng/grpc,nicolasnoble/grpc,carl-mastrangelo/grpc,grpc/grpc,makdharma/grpc,pszemus/grpc,7anner/grpc,a-veitch/grpc,Vizerai/grpc,greasypizza/grpc,dgquintas/grpc,simonkuang/grpc,thunderboltsid/grpc,quizlet/grpc,dklempner/grpc,matt-kwong/grpc,sreecha/grpc,y-zeng/grpc,thunderboltsid/grpc,pmarks-net/grpc,thinkerou/grpc,adelez/grpc,kskalski/grpc,jcanizales/grpc,wcevans/grpc,ipylypiv/grpc,greasypizza/grpc,vjpai/grpc,yongni/grpc,thinkerou/grpc,soltanmm/grpc,MakMukhi/grpc,malexzx/grpc,donnadionne/grpc,infinit/grpc,yugui/grpc,jboeuf/grpc,simonkuang/grpc,royalharsh/grpc,kpayson64/grpc,kumaralokgithub/grpc,greasypizza/grpc,thinkerou/grpc,hstefan/grpc,Vizerai/grpc,ejona86/grpc,andrewpollock/grpc,greasypizza/grpc,stanley-cheung/grpc,ncteisen/grpc,nicolasnoble/grpc,vjpai/grpc,adelez/grpc,LuminateWireless/grpc,ctiller/grpc,yugui/grpc,geffzhang/grpc,ncteisen/grpc,simonkuang/grpc,grpc/grpc,deepaklukose/grpc,grpc/grpc,jboeuf/grpc,Vizerai/grpc,matt-kwong/grpc,msmania/grpc,grani/grpc,LuminateWireless/grpc,dgquintas/grpc,7anner/grpc,msmania/grpc,ncteisen/grpc,ejona86/grpc,nicolasnoble/grpc,zhimingxie/grpc,rjshade/grpc,mehrdada/grpc,MakMukhi/grpc,ppietrasa/grpc,Vizerai/grpc,ejona86/grpc,vsco/grpc,kpayson64/grpc,soltanmm-google/grpc,ncteisen/grpc,malexzx/grpc