Do not install ruby-debug in travis
Do not install ruby-debug in travis

It drags linecache along that takes forever to compile
kslazarev/mongoid,voldy/mongoid,jamesalmond/mongoid,MadRabbit/mongoid,johnny-miyake/mongoid,mitio/mongoid,joelcogen/mongoid,X0nic/mongoid,simi/mongoid,bobbytables/mongoid,uranazo/mongoid,cjab/mongoid,captain-lucas/mongoid,luxerama/mongoid,karmakaze/mongoid,greggroth/mongoid,jordoh/mongoid,jbrien/mongoid,joshsoftware/mongoid,zBMNForks/mongoid,manikandan-kandasamy/mongoid,drfeelngood/mongoid,zenjoy/mongoid,parov/mongoid,lawrencecurtis/mongoid,DanielVartanov/mongoid,Subskii/mongoid,rosylilly/mongoid,genexp/mongoid,FestivalBobcats/mongoid,neerfri/mongoid,simi/mongoid,parov/mongoid,KoanHealth/mongoid,apptentive-engineering/mongoid,rymai/mongoid,X0nic/mongoid,mysociety/mongoid,mattconnolly/mongoid,razum2um/mongoid,dsachitano/mongoid,robinst/mongoid,Shop2market/mongoid,hadees/mongoid,piotrj/mongoid,manuelmorales/mongoid,narutosanjiv/mongoid,mgartner/mongoid,irakli-janiashvili/mongoid,janroesner/mongoid,chetan/mongoid,hbakhtiyor/mongoid,arnkorty/mongoid,lawrencecurtis/mongoid,infiverve/mongoid,jasonsydes/mongoid,incorvia/mongoid,alexandru-calinoiu/mongoid,getaroom/mongoid,jasl/mongoid,aileron/mongoid,theirishpenguin/mongoid,tricknotes/mongoid,niedhui/mongoid,zanker/mongoid,arnkorty/mongoid,jonhyman/mongoid,nagachika/mongoid,brettgoulder/mongoid-1,loginx/mongoid,matadon/mongoid,SumeruSoftware/mongoid,rmm5t/mongoid,flada-auxv/mongoid,DouweM/mongoid,camallen/mongoid,HeeL/mongoid-1,500px/mongoid,asantamar/mongoid,asaaki/mongoid,HeeL/mongoid-1,hfwang/mongoid,kslazarev/mongoid,kuadrosx/mongoid,rogerz42892/mongoid,byroot/mongoid,semaperepelitsa/mongoid,balauru/mongoid,brynary/mongoid,dannguyen/mongoid,colinyoung/mongoid,astjohn/mongoid,demarque/mongoid,icambron/mongoid,robwil/mongoid,77Agency/mongoid,wuboy0307/mongoid,77Agency/mongoid,dnd/mongoid,lackac/mongoid,potatosalad/mongoid,ElvinEfendi/mongoid,sivagollapalli/mongoid,genexp/mongoid,evendis/mongoid,tombruijn/mongoid,Numerico/mongoid,ahoward/mongoid,wyattisimo/mongoid,Spaceghost/mongoid,nfo/mongoid,dustinwatson/mongoid,kentaroi/mongoid,blackxored/mongoid,mongodb/mongoid,subhashb/mongoid,PerfectMemory/mongoid,priyaaank/mongoid,mulder/mongoid,SumeruSoftware/mongoid,grossws/mongoid,kayakyakr/mongoid,evansagge/mongoid,elia/mongoid,jbrien/mongoid,chriseppstein/mongoid,herimedia/mongoid,Welovroi/mongoid,karmakaze/mongoid,Subskii/mongoid,etomic/mongoid,mongodb/mongoid,koraktor/mongoid,ganlron/mongoid,afeld/mongoid,evansagge/mongoid,caiofilipini/mongoid,akm/mongoid,CIRCUITLLC/mongoid,snapfish-soma/mongoid,cavneb/mongoid,cleishm/mongoid,shotoso/mongoid,stellard/mongoid,ono/mongoid,itbakery/mongoid,joshleitzel/mongoid,iGoDigital-LLC/mongoid,kayakyakr/mongoid,zaithottakath/mongoid,iGoDigital-LLC/mongoid,Flameeyes/mongoid,abezzub/mongoid,likealittle/mongoid,sujal/mongoid,franc/mongoid,mzsanford/mongoid,joneslee85/mongoid,msaffitz/mongoid,marcweil/mongoid,brettgoulder/mongoid-1,eddanger/mongoid,codedogfish/mongoid,mgolovnia/mongoid,rubrikkfabrikken/mongoid,krasnoukhov/mongoid,nickhoffman/mongoid,i0rek/mongoid,Exoth/mongoid,MSNexploder/mongoid,zanker/mongoid,maxd/mongoid,wyattisimo/mongoid,cpuguy83/mongoid,grimen/mongoid,hashrocketeer/mongoid,bdmac/mongoid,MSNexploder/mongoid,javmorin/mongoid,jordelver/mongoid,rafaelgaspar/mongoid,mash-ltd/mongoid,Exoth/mongoid,cmpolis/mongoid,stevebartholomew/mongoid,slbug/mongoid,uranazo/mongoid,cpuguy83/mongoid,jeffreyiacono/mongoid,kostyantyn/mongoid,aagrawal2001/mongoid,fortnightlabs/mongoid,evendis/mongoid,bdmac/mongoid,herimedia/mongoid,dannguyen/mongoid,jtescher/mongoid,cavneb/mongoid,goshakkk/mongoid,hbakhtiyor/mongoid,Tickaroo/mongoid2,Speakol/mongoid,nullstyle/mongoid,kay-kim/mongoid,hfwang/mongoid,gicappa/mongoid,stnguyen/mongoid,bobbytables/mongoid,bearded/mongoid,hashrocketeer/mongoid,fbernier/mongoid,bigbenli/mongoid,tombruijn/mongoid,rinmu/mongoid,alexandru-calinoiu/mongoid,cmpolis/mongoid,jordelver/mongoid,schnittchen/mongoid,abezzub/mongoid,nviennot/mongoid,haihappen/mongoid,Welovroi/mongoid,aj0strow/mongoid,dbkbali/mongoid,apptentive-engineering/mongoid,ganlron/mongoid,zenjoy/mongoid,jonhyman/mongoid,joshsoftware/mongoid,fredjean/mongoid,eddanger/mongoid,env0der/mongoid,Codas/mongoid,500px/mongoid,mikerobe/mongoid,jasl/mongoid,jiren/mongoid,uniiverse/mongoid,teaforthecat/mongoid,joelcogen/mongoid,aagrawal2001/mongoid,kostyantyn/mongoid,hubertlepicki/mongoid,Zhomart/mongoid,wuboy0307/mongoid,Empact/mongoid,zBMNForks/mongoid,irakli-janiashvili/mongoid,timgluz/mongoid,jeffreyiacono/mongoid,dnd/mongoid,rpocklin/mongoid,sivagollapalli/mongoid,Sharevari-Inc/mongoid,lowang/mongoid,lackac/mongoid,trmmy/mongoid,estolfo/mongoid,Speakol/mongoid,camallen/mongoid,greggroth/mongoid,kay-kim/mongoid,joshleitzel/mongoid,nickhoffman/mongoid,subhashb/mongoid,codedogfish/mongoid,rmm5t/mongoid,ryanong/mongoid,imomoisoft/mongoid,flexoid/mongoid,amw/mongoid,manikandan-kandasamy/mongoid,mitijain123/mongoid,cleishm/mongoid,trmmy/mongoid,akm/mongoid,teaforthecat/mongoid,anuprit/mongoid,mathieuravaux/mongoid,akirasosa/mongoid,bencrouse/mongoid,blt04/mongoid,Numerico/mongoid,Azzurrio/mongoid,FestivalBobcats/mongoid,spiegela/mongoid,lowang/mongoid,ElvinEfendi/mongoid,spiegela/mongoid,leozhang37/mongoid,sepastian/mongoid,icambron/mongoid,stevebartholomew/mongoid,fortnightlabs/mongoid,drobune/mongoid,cao7113/mongoid,asantamar/mongoid,matbox/mongoid,amw/mongoid,tagliala/mongoid,akirasosa/mongoid,dblock/mongoid,leemhenson/mongoid,eljojo/mongoid,Zhomart/mongoid,tolsen/mongoid,Sharevari-Inc/mongoid,marcweil/mongoid,aileron/mongoid,mysociety/mongoid,sideci-sample/sideci-sample-mongoid,narutosanjiv/mongoid,captain-lucas/mongoid,gullitmiranda/mongoid,jonasschneider/mongoid,aj0strow/mongoid,mgartner/mongoid,kuadrosx/mongoid,grossws/mongoid,crowdtap/mongoid,kevinmarvin/mongoid,aleksclark/mongoid,HRNewMedia/mongoid,crowdtap/mongoid,robotmay/mongoid,sporkd/mongoid,mongoid/mongoid,xentek/mongoid,hubertlepicki/mongoid,franc/mongoid,bjori/mongoid,Codas/mongoid,dustinwatson/mongoid,johnnyshields/mongoid,drobune/mongoid,mongodb/mongoid,fujimura/mongoid,mongoid/mongoid,glebtv/mongoid,Aupajo/mongoid-1,kcdragon/mongoid,gicappa/mongoid,ErisExchange/mongoid,jtescher/mongoid,skyeagle/mongoid,johnny-miyake/mongoid,jeyb/mongoid,sideci-sample/sideci-sample-mongoid,charliehq/mongoid,chriseppstein/mongoid,kentaroi/mongoid,eljojo/mongoid,iboard/mongoid-1,afeld/mongoid,jakcharlton/mongoid,Winslett/mongoid,hxx/mongoid,fbernier/mongoid,bigbenli/mongoid,infiverve/mongoid,canavese/mongoid,mzsanford/mongoid,imomoisoft/mongoid,Spaceghost/mongoid,praecipula/mongoid,nusco/mongoid,canvas-drw/mongoid,jstrocel/mongoid,mulder/mongoid,capnregex/mongoid,lucasas/mongoid,gregmolnar/mongoid,blackxored/mongoid,socialreferral/mongoid,janroesner/mongoid,razum2um/mongoid,praecipula/mongoid,incorvia/mongoid,moretea/mongoid,haihappen/mongoid,romanbsd/mongoid,niedhui/mongoid,drfeelngood/mongoid,matsimitsu/mongoid,stnguyen/mongoid,socialreferral/mongoid,etomic/mongoid,canvas-drw/mongoid,mschulkind/mongoid,shotoso/mongoid,mschulkind/mongoid,Winslett/mongoid,PerfectMemory/mongoid,xentek/mongoid,anuprit/mongoid,msaffitz/mongoid,crealytics/mongoid,neerfri/mongoid,chetan/mongoid,rosylilly/mongoid,ryanong/mongoid,jakcharlton/mongoid,absperf/mongoid,stellard/mongoid,tricknotes/mongoid,potatosalad/mongoid,nullstyle/mongoid,rubrikkfabrikken/mongoid,Houdini/mongoid,alexrothenberg/mongoid,uniiverse/mongoid,nusco/mongoid,krasnoukhov/mongoid,DanielVartanov/mongoid,moretea/mongoid,goshakkk/mongoid,dbkbali/mongoid,tzar/mongoid,nicolasblanco/mongoid,mitijain123/mongoid,tengine/mongoid,jeyb/mongoid,dakatsuka/mongoid,rpocklin/mongoid,tolsen/mongoid,rebelhold/mongoid,hxx/mongoid,cao7113/mongoid,kevinmarvin/mongoid,charliehq/mongoid,brynary/mongoid,rinmu/mongoid,manuelmorales/mongoid,estolfo/mongoid,alexrothenberg/mongoid,flada-auxv/mongoid,rogerz42892/mongoid,fredjean/mongoid,nextmat/mongoid,KoanHealth/mongoid,flexoid/mongoid,mikerobe/mongoid,tagliala/mongoid,caiofilipini/mongoid,mash-ltd/mongoid,slbug/mongoid,ahoward/mongoid,glebtv/mongoid,skiz/mongoid,jordoh/mongoid,nextmat/mongoid,hadees/mongoid,matsimitsu/mongoid,nagachika/mongoid,joneslee85/mongoid,canavese/mongoid,balauru/mongoid,voldy/mongoid,CIRCUITLLC/mongoid,crealytics/mongoid,shingara/mongoid,matbox/mongoid,mathieuravaux/mongoid,nviennot/mongoid,shingara/mongoid,bencrouse/mongoid,johnnyshields/mongoid,asaaki/mongoid,alex-klepa/mongoid,javmorin/mongoid,elia/mongoid,bearded/mongoid,tzar/mongoid,iamnader/mongoid-2,luxerama/mongoid,timgluz/mongoid,robwil/mongoid,colinyoung/mongoid,kcdragon/mongoid,skiz/mongoid,demarque/mongoid,nfo/mongoid,rafaelgaspar/mongoid,jstrocel/mongoid,Azzurrio/mongoid,ErisExchange/mongoid,dsachitano/mongoid,bjori/mongoid,sepastian/mongoid,sporkd/mongoid,lucasas/mongoid,jamesalmond/mongoid,gregmolnar/mongoid,jetheredge/mongoid,zaithottakath/mongoid,gullitmiranda/mongoid,itbakery/mongoid,mattconnolly/mongoid,aleksclark/mongoid,maxd/mongoid,albus522/mongoid