travis: Save cache on build error
travis: Save cache on build error

lateminer/bitcoin,sipsorcery/bitcoin,DigitalPandacoin/pandacoin,GroestlCoin/GroestlCoin,myriadcoin/myriadcoin,instagibbs/bitcoin,domob1812/bitcoin,pataquets/namecoin-core,rnicoll/dogecoin,GroestlCoin/bitcoin,fanquake/bitcoin,cdecker/bitcoin,jnewbery/bitcoin,bitcoinsSG/bitcoin,sstone/bitcoin,afk11/bitcoin,andreaskern/bitcoin,ahmedbodi/vertcoin,n1bor/bitcoin,pataquets/namecoin-core,Xekyo/bitcoin,jamesob/bitcoin,litecoin-project/litecoin,apoelstra/bitcoin,domob1812/namecore,GroestlCoin/GroestlCoin,bitcoinknots/bitcoin,kallewoof/bitcoin,FeatherCoin/Feathercoin,qtumproject/qtum,OmniLayer/omnicore,namecoin/namecoin-core,domob1812/namecore,jlopp/statoshi,alecalve/bitcoin,myriadteam/myriadcoin,mm-s/bitcoin,sipsorcery/bitcoin,MarcoFalke/bitcoin,fanquake/bitcoin,afk11/bitcoin,monacoinproject/monacoin,rnicoll/dogecoin,rnicoll/bitcoin,monacoinproject/monacoin,jambolo/bitcoin,GroestlCoin/GroestlCoin,lateminer/bitcoin,gjhiggins/vcoincore,apoelstra/bitcoin,jambolo/bitcoin,alecalve/bitcoin,achow101/bitcoin,jlopp/statoshi,GroestlCoin/GroestlCoin,AkioNak/bitcoin,untrustbank/litecoin,bitcoinknots/bitcoin,ahmedbodi/vertcoin,jamesob/bitcoin,CryptArc/bitcoin,litecoin-project/litecoin,fujicoin/fujicoin,midnightmagic/bitcoin,peercoin/peercoin,sipsorcery/bitcoin,fanquake/bitcoin,tjps/bitcoin,dscotese/bitcoin,Xekyo/bitcoin,r8921039/bitcoin,fujicoin/fujicoin,mitchellcash/bitcoin,lateminer/bitcoin,fanquake/bitcoin,fanquake/bitcoin,MeshCollider/bitcoin,MeshCollider/bitcoin,ahmedbodi/vertcoin,droark/bitcoin,bitcoin/bitcoin,bitcoin/bitcoin,jtimon/bitcoin,prusnak/bitcoin,afk11/bitcoin,sipsorcery/bitcoin,DigitalPandacoin/pandacoin,droark/bitcoin,MarcoFalke/bitcoin,mitchellcash/bitcoin,OmniLayer/omnicore,particl/particl-core,achow101/bitcoin,ElementsProject/elements,cdecker/bitcoin,MeshCollider/bitcoin,domob1812/namecore,jamesob/bitcoin,pstratem/bitcoin,namecoin/namecore,n1bor/bitcoin,GroestlCoin/bitcoin,kallewoof/bitcoin,anditto/bitcoin,ahmedbodi/vertcoin,myriadcoin/myriadcoin,namecoin/namecore,bitcoinknots/bitcoin,pstratem/bitcoin,untrustbank/litecoin,AkioNak/bitcoin,vertcoin/vertcoin,ElementsProject/elements,pataquets/namecoin-core,rnicoll/bitcoin,myriadteam/myriadcoin,peercoin/peercoin,midnightmagic/bitcoin,litecoin-project/litecoin,gjhiggins/vcoincore,yenliangl/bitcoin,anditto/bitcoin,jlopp/statoshi,ajtowns/bitcoin,namecoin/namecoin-core,EthanHeilman/bitcoin,particl/particl-core,alecalve/bitcoin,dscotese/bitcoin,DigitalPandacoin/pandacoin,Xekyo/bitcoin,jnewbery/bitcoin,andreaskern/bitcoin,r8921039/bitcoin,bespike/litecoin,litecoin-project/litecoin,bespike/litecoin,myriadcoin/myriadcoin,yenliangl/bitcoin,domob1812/namecore,domob1812/namecore,qtumproject/qtum,particl/particl-core,nikkitan/bitcoin,litecoin-project/litecoin,monacoinproject/monacoin,sstone/bitcoin,OmniLayer/omnicore,fujicoin/fujicoin,bitcoin/bitcoin,dscotese/bitcoin,mm-s/bitcoin,domob1812/bitcoin,achow101/bitcoin,Xekyo/bitcoin,GroestlCoin/GroestlCoin,cdecker/bitcoin,ElementsProject/elements,vertcoin/vertcoin,jlopp/statoshi,sipsorcery/bitcoin,sstone/bitcoin,jnewbery/bitcoin,apoelstra/bitcoin,r8921039/bitcoin,Xekyo/bitcoin,JeremyRubin/bitcoin,MeshCollider/bitcoin,jambolo/bitcoin,wellenreiter01/Feathercoin,peercoin/peercoin,bespike/litecoin,tecnovert/particl-core,Xekyo/bitcoin,MarcoFalke/bitcoin,anditto/bitcoin,bitcoinknots/bitcoin,jamesob/bitcoin,namecoin/namecoin-core,rnicoll/dogecoin,vertcoin/vertcoin,tjps/bitcoin,apoelstra/bitcoin,FeatherCoin/Feathercoin,prusnak/bitcoin,JeremyRubin/bitcoin,vertcoin/vertcoin,monacoinproject/monacoin,GroestlCoin/bitcoin,ajtowns/bitcoin,sstone/bitcoin,Sjors/bitcoin,bitcoinsSG/bitcoin,afk11/bitcoin,prusnak/bitcoin,jonasschnelli/bitcoin,litecoin-project/litecoin,bespike/litecoin,tjps/bitcoin,CryptArc/bitcoin,rnicoll/bitcoin,prusnak/bitcoin,Sjors/bitcoin,jlopp/statoshi,peercoin/peercoin,lateminer/bitcoin,bitcoinknots/bitcoin,particl/particl-core,OmniLayer/omnicore,mm-s/bitcoin,pstratem/bitcoin,GroestlCoin/bitcoin,wellenreiter01/Feathercoin,namecoin/namecore,mm-s/bitcoin,alecalve/bitcoin,particl/particl-core,jlopp/statoshi,instagibbs/bitcoin,afk11/bitcoin,apoelstra/bitcoin,rnicoll/dogecoin,MarcoFalke/bitcoin,droark/bitcoin,gjhiggins/vcoincore,qtumproject/qtum,practicalswift/bitcoin,practicalswift/bitcoin,anditto/bitcoin,jonasschnelli/bitcoin,ajtowns/bitcoin,namecoin/namecoin-core,myriadteam/myriadcoin,anditto/bitcoin,dscotese/bitcoin,pataquets/namecoin-core,bespike/litecoin,bitcoin/bitcoin,qtumproject/qtum,lateminer/bitcoin,tecnovert/particl-core,practicalswift/bitcoin,dscotese/bitcoin,myriadcoin/myriadcoin,fanquake/bitcoin,apoelstra/bitcoin,GroestlCoin/bitcoin,mruddy/bitcoin,namecoin/namecoin-core,nikkitan/bitcoin,tecnovert/particl-core,ElementsProject/elements,cdecker/bitcoin,practicalswift/bitcoin,namecoin/namecore,OmniLayer/omnicore,bespike/litecoin,bitcoinsSG/bitcoin,bitcoinsSG/bitcoin,jambolo/bitcoin,JeremyRubin/bitcoin,domob1812/bitcoin,jnewbery/bitcoin,wellenreiter01/Feathercoin,jonasschnelli/bitcoin,mitchellcash/bitcoin,droark/bitcoin,instagibbs/bitcoin,yenliangl/bitcoin,CryptArc/bitcoin,wellenreiter01/Feathercoin,DigitalPandacoin/pandacoin,mitchellcash/bitcoin,fujicoin/fujicoin,bitcoinsSG/bitcoin,dscotese/bitcoin,rnicoll/dogecoin,andreaskern/bitcoin,DigitalPandacoin/pandacoin,mruddy/bitcoin,mitchellcash/bitcoin,mm-s/bitcoin,fujicoin/fujicoin,GroestlCoin/GroestlCoin,bitcoin/bitcoin,MeshCollider/bitcoin,ahmedbodi/vertcoin,cdecker/bitcoin,monacoinproject/monacoin,nikkitan/bitcoin,alecalve/bitcoin,tjps/bitcoin,jamesob/bitcoin,n1bor/bitcoin,nikkitan/bitcoin,gjhiggins/vcoincore,tecnovert/particl-core,tecnovert/particl-core,instagibbs/bitcoin,achow101/bitcoin,ElementsProject/elements,FeatherCoin/Feathercoin,jtimon/bitcoin,midnightmagic/bitcoin,tjps/bitcoin,FeatherCoin/Feathercoin,monacoinproject/monacoin,kallewoof/bitcoin,peercoin/peercoin,vertcoin/vertcoin,CryptArc/bitcoin,EthanHeilman/bitcoin,pstratem/bitcoin,rnicoll/bitcoin,domob1812/bitcoin,gjhiggins/vcoincore,ahmedbodi/vertcoin,mruddy/bitcoin,yenliangl/bitcoin,qtumproject/qtum,tjps/bitcoin,MarcoFalke/bitcoin,mruddy/bitcoin,AkioNak/bitcoin,ajtowns/bitcoin,midnightmagic/bitcoin,fujicoin/fujicoin,r8921039/bitcoin,myriadcoin/myriadcoin,n1bor/bitcoin,EthanHeilman/bitcoin,kallewoof/bitcoin,prusnak/bitcoin,ElementsProject/elements,wellenreiter01/Feathercoin,nikkitan/bitcoin,untrustbank/litecoin,alecalve/bitcoin,untrustbank/litecoin,jnewbery/bitcoin,sipsorcery/bitcoin,CryptArc/bitcoin,kallewoof/bitcoin,mruddy/bitcoin,jtimon/bitcoin,particl/particl-core,achow101/bitcoin,anditto/bitcoin,droark/bitcoin,prusnak/bitcoin,JeremyRubin/bitcoin,andreaskern/bitcoin,jambolo/bitcoin,namecoin/namecore,EthanHeilman/bitcoin,EthanHeilman/bitcoin,bitcoinsSG/bitcoin,AkioNak/bitcoin,rnicoll/bitcoin,domob1812/namecore,mruddy/bitcoin,CryptArc/bitcoin,sstone/bitcoin,jtimon/bitcoin,pataquets/namecoin-core,nikkitan/bitcoin,yenliangl/bitcoin,rnicoll/bitcoin,Sjors/bitcoin,droark/bitcoin,pstratem/bitcoin,domob1812/bitcoin,bitcoin/bitcoin,mitchellcash/bitcoin,DigitalPandacoin/pandacoin,cdecker/bitcoin,qtumproject/qtum,sstone/bitcoin,namecoin/namecore,midnightmagic/bitcoin,myriadteam/myriadcoin,Sjors/bitcoin,qtumproject/qtum,ajtowns/bitcoin,untrustbank/litecoin,namecoin/namecoin-core,jamesob/bitcoin,gjhiggins/vcoincore,AkioNak/bitcoin,myriadteam/myriadcoin,n1bor/bitcoin,FeatherCoin/Feathercoin,practicalswift/bitcoin,myriadteam/myriadcoin,peercoin/peercoin,jambolo/bitcoin,EthanHeilman/bitcoin,JeremyRubin/bitcoin,r8921039/bitcoin,AkioNak/bitcoin,FeatherCoin/Feathercoin,JeremyRubin/bitcoin,kallewoof/bitcoin,practicalswift/bitcoin,tecnovert/particl-core,jonasschnelli/bitcoin,instagibbs/bitcoin,domob1812/bitcoin,andreaskern/bitcoin,jtimon/bitcoin,lateminer/bitcoin,r8921039/bitcoin,pataquets/namecoin-core,myriadcoin/myriadcoin,afk11/bitcoin,yenliangl/bitcoin,wellenreiter01/Feathercoin,jtimon/bitcoin,pstratem/bitcoin,jonasschnelli/bitcoin,vertcoin/vertcoin,GroestlCoin/bitcoin,MarcoFalke/bitcoin,Sjors/bitcoin,achow101/bitcoin,untrustbank/litecoin,mm-s/bitcoin,MeshCollider/bitcoin,andreaskern/bitcoin,ajtowns/bitcoin,midnightmagic/bitcoin,OmniLayer/omnicore,instagibbs/bitcoin,n1bor/bitcoin