rake task to build ruby 1.9.3
rake task to build ruby 1.9.3

bskyb-commerce/ruby-buildpack,iamjarvo/ruby-buildpack,packetmonkey/heroku-buildpack-ruby,jeremyvdw/heroku-buildpack-ruby-jekyll,atmos/heroku-buildpack-ruby,cloudn/buildpack-ruby,pilotcreative/heroku-buildpack-ruby,michaelphines/alexa-nest,iamjarvo/ruby-buildpack,gbenedict/heroku-buildpack-ruby,sky-uk/ruby-buildpack,ejholmes/heroku-buildpack-middleman,hpcloud/ruby-buildpack,dleavitt/heroku-buildpack-ruby,sky-uk/ruby-buildpack,darron/heroku-buildpack-ruby-jekyll,simonnordberg/heroku-buildpack-ruby,space150/heroku-buildpack-ruby,anay/buildpack-ruby-with-oracle-jdk,gls1/heroku-buildpack-ruby-pdftk-new,ekaranto/rails4-bluemix-buildpack,centresource/heroku-buildpack-turbo-sprockets-pmp-ffm,crdschurch/heroku-buildpack-ruby,WilliamDenniss/heroku-buildpack-ruby-imagemagick,hellojustin/heroku-buildpack-custom-ruby,Altoros/ruby-buildpack,musicglue/heroku-buildpack-ruby,mattmanning/heroku-buildpack-ruby-jekyll,zoomer/heroku-buildpack-ruby-bower,HYPERHYPER/heroku-buildpack-ruby,tenjikinc/heroku-buildpack-ruby,cmaggard/heroku-buildpack-turbo-sprockets,ilpoldo/heroku-buildpack-ruby,qnyp/heroku-buildpack-ruby-bower,orlando/heroku-buildpack-ruby,derrek/heroku-buildpack-ruby,blueapron/heroku-buildpack-ruby,shuber/heroku-buildpack-ruby,sky-uk/help-heroku-buildpack,Numerico/heroku-buildpack-ruby,travis-ci/heroku-buildpack-ruby,thewebguy/heroku-buildpack-ruby-ffmpeg-libsndfile,bskyb-commerce/ruby-buildpack,sgnpa/heroku-buildpack-cas,AdStage/heroku-buildpack-ruby,pcincalifornia/wdc-heroku-buildpack-middleman,pavgup/heroku-buildpack-ruby-lateslugignore,redhotvengeance/heroku-buildpack-deep-thought,sgnpa/heroku-buildpack-cas,ascot21/heroku-buildpack-turbo-sprockets,KoanHealth/heroku-buildpack-marvin-setup,jeremyvdw/heroku-buildpack-ruby-jekyll,zunda/heroku-buildpack-ruby,packetmonkey/heroku-buildpack-ruby,zidekmat/buildpack-ruby,markaschneider/heroku-buildpack-ruby-ffmpeg-sox,ActiveState/heroku-buildpack-ruby,Jonty/ruby-buildpack,trumaker/heroku-buildpack-turbo-sprockets,phusion/heroku-buildpack-ruby,recursecenter/heroku-buildpack-ruby,Git-Host/prelang-buildpack,andycroll/heroku-buildpack-jekyll,brightbytes/heroku-buildpack-ruby-without-assets-precompile,engineyard/heroku-buildpack-ruby,rvizza/heroku-buildpack-gsl-ruby,sanemat/heroku-buildpack-ruby-tachikoma,bskyb-commerce/help-heroku-buildpack,Altoros/ruby-buildpack,hpcloud/ruby-buildpack,qnyp/heroku-buildpack-ruby-bower,allomov/fat-free-heroku-buildpack-ruby,dtao/teeny-buildpack,atmos/heroku-buildpack-ruby,blueapron/heroku-buildpack-ruby,takii/db2rubybuildpack,tomwolfe/heroku-buildpack-gsl-ruby,tpope/heroku-buildpack-ruby-tpope,sgnpa/heroku-buildpack-cas,DyegoCosta/heroku-buildpack-ruby,Scalingo/ruby-buildpack,pkgr/buildpack-ruby-precise-old,AJamesPhillips/heroku-buildpack-ruby,jglascoe/heroku-buildpack-ruby-jekyll,hone/heroku-buildpack-ruby,gls1/heroku-buildpack-ruby-pdftk,Numerico/heroku-buildpack-ruby,hausdorff/heroku-buildpack-ruby-jekyll,swipesense/heroku-buildpack-ruby,wycats/heroku-buildpack-middleman,guidance-guarantee-programme/heroku-buildpack-princexml-old,Dim25/heroku-buildpack-ruby-GSL,d-reinhold/cf-buildpack-ruby,daltonrenaldo/heroku-buildpack-ruby,Genius/heroku-buildpack-ruby,iamjarvo/ruby-buildpack,ibmdb/db2rubybuildpack,orlando/heroku-buildpack-ruby,makifund/heroku-buildpack-ruby,DouglasAllen/heroku-buildpack-ruby,schu/heroku-buildpack-ruby,ericroberts/heroku-buildpack-ruby,aarongray/heroku-buildpack-ruby,millie/heroku-buildpack-ruby-with-pdftk,nicholasmott/heroku-buildpack-octopress,teodor-pripoae/heroku-buildpack-ruby,ltrademark/heroku-buildpack-ruby,AJamesPhillips/heroku-buildpack-ruby,davidjrice/heroku-buildpack-couchbase-ruby,takii/db2rubybuildpack,jonseaberg/heroku-buildpack-turbo-sprockets,jumptvs/BP_Ruby,AdStage/heroku-buildpack-ruby,pkgr/heroku-buildpack-ruby,sky-uk/ruby-buildpack,rowanoulton/heroku-buildpack-ruby,erintherad/heroku-buildpack-ruby,catalyzeio/buildpack-ruby,hixi/heroku-buildpack-ruby,bellycard/heroku-buildpack-ruby,jonseaberg/heroku-buildpack-turbo-sprockets,tdenovan/heroku-buildpack-ruby,pkgr/buildpack-ruby-precise-old,CPPWind/ruby-buildpack,cloudfoundry/ruby-buildpack,stefansundin/heroku-buildpack-ruby,stolt45/heroku-buildpack-ruby-with-sqlite3,AJamesPhillips/heroku-buildpack-ruby,mrhenry/heroku-buildpack-ruby,jumptvs/BP_Ruby,wakermahmud/heroku-buildpack-jekyll,progrium/heroku-buildpack-ruby,DigitalInnovation/heroku-buildpack-mslabs,pkgr/heroku-buildpack-ruby,d-reinhold/cf-buildpack-ruby,darron/heroku-buildpack-ruby-jekyll,Scalingo/ruby-buildpack,samfrench/heroku-buildpack-ruby,fcruxen/ruby-buildpack,fgbreel/heroku-buildpack-ruby,progrium/heroku-buildpack-ruby,cordata/heroku-buildpack-ruby,pietrop/heroku-buildpack-ruby,zidekmat/buildpack-ruby,dtao/deft-buildpack-ruby,CPPWind/ruby-buildpack,ibmdb/db2rubybuildpack,mrhenry/heroku-buildpack-ruby,sstelfox/buildpack-ruby,Micka33/heroku-buildpack-ruby-liblua,cloudControl/buildpack-ruby,ablease/custom-buildpack,guidance-guarantee-programme/heroku-buildpack-princexml-old,Jonty/ruby-buildpack,jgable/buildpack-ruby-rack-setup-tasks,nicholasmott/heroku-buildpack-octopress,bskyb-commerce/help-heroku-buildpack,ablease/custom-buildpack,simonnordberg/heroku-buildpack-ruby,davidjrice/heroku-buildpack-couchbase-ruby,ablease/custom-buildpack,sstelfox/buildpack-ruby,nthj/heroku-buildpack-mirror,ericroberts/heroku-buildpack-ruby,ltrademark/heroku-buildpack-ruby,jonasoberschweiber/heroku-buildpack-ruby,heroku/heroku-buildpack-ruby,Genius/heroku-buildpack-ruby,hellojustin/heroku-buildpack-custom-ruby,cloudfoundry/ruby-buildpack,mintybit/heroku-buildpack-ruby,pavgup/heroku-buildpack-ruby-lateslugignore,sanemat/heroku-buildpack-ruby-tachikoma,WilliamDenniss/heroku-buildpack-ruby-imagemagick,awebneck/heroku-buildpack-canvas,cloudfoundry/ruby-buildpack,tdenovan/heroku-buildpack-ruby,HYPERHYPER/heroku-buildpack-ruby,ablease/custom-buildpack,teodor-pripoae/heroku-buildpack-ruby,phusion/heroku-buildpack-ruby,codykrieger/heroku-buildpack-jekyll,ekaranto/rails4-bluemix-buildpack,cloudfoundry/ruby-buildpack,trumaker/heroku-buildpack-turbo-sprockets,phusion/heroku-buildpack-ruby,reesio/heroku-buildpack-ruby,iamjarvo/ruby-buildpack,donnykurnia/heroku-buildpack-ruby,gls1/heroku-buildpack-ruby-pdftk,Git-Host/prelang-buildpack,bwaite-jaroop/heroku-buildpack-ruby,barakav/heroku-buildpack-ruby,centresource/heroku-buildpack-turbo-sprockets-pmp-ffm,scottatron/moc-buildpack,DigitalInnovation/heroku-buildpack-mslabs,mperejda/heroku-buildpack-ruby,ndbroadbent/heroku-buildpack-turbo-sprockets,rstacruz/heroku-buildpack-middleman,jasonlevens/heroku-buildpack-ruby,ruby/heroku-buildpack-www-ruby-lang,awebneck/heroku-buildpack-canvas,meskyanichi/heroku-buildpack-middleman,12spokes/heroku-buildpack-ruby-imagemagick,leonardykris/mos-ruby-buildpack,catalyzeio/buildpack-ruby,schu/heroku-buildpack-ruby,Altoros/ruby-buildpack,hone/heroku-buildpack-ruby,takii/heroku-buildpack-ruby,jcamenisch/heroku-buildpack-rgeo,bskyb-commerce/ruby-buildpack,mattwalters/heroku-buildpack-ruby,erintherad/heroku-buildpack-ruby,joshco/heroku-buildpack-ruby,beydogan/ruby-buildpack,jasonlevens/heroku-buildpack-ruby,takii/heroku-buildpack-ruby,jgarber/heroku-buildpack-ruby-octopress,thewebguy/heroku-buildpack-ruby-ffmpeg-libsndfile,wycats/heroku-buildpack-middleman,ascot21/heroku-buildpack-turbo-sprockets,rhomobile/heroku-buildpack-ruby,cloudControl/buildpack-ruby,reesio/heroku-buildpack-ruby,atmos/heroku-buildpack-ruby,dieze/heroku-buildpack-ruby-hooks,fcruxen/ruby-buildpack,jgarber/heroku-buildpack-ruby-octopress,ericboehs/heroku-buildpack-ruby,AdStage/heroku-buildpack-ruby,barakav/heroku-buildpack-ruby,bwaite-jaroop/heroku-buildpack-ruby,stefansundin/heroku-buildpack-ruby,wakermahmud/heroku-buildpack-jekyll,joshco/heroku-buildpack-ruby,0x00evil/heroku-buildpack-ruby,d-reinhold/cf-buildpack-ruby,cmaggard/heroku-buildpack-turbo-sprockets,jumptvs/BP_Ruby,stolt45/heroku-buildpack-ruby-with-sqlite3,thirdprestige/heroku-buildpack-ruby,Jonty/ruby-buildpack,gls1/heroku-buildpack-ruby-pdftk-new,orenyk/heroku-buildpack-ruby,cloudn/buildpack-ruby,firmhouse/heroku-buildpack-ruby-freetds,moneyadviceservice/heroku-buildpack-ruby-bowndler,sky-uk/help-heroku-buildpack,pilotcreative/heroku-buildpack-ruby,davidjrice/heroku-buildpack-couchbase-ruby,jgable/buildpack-ruby-rack-setup-tasks,nthj/heroku-buildpack-mirror,cloudn/buildpack-ruby,pietrop/heroku-buildpack-ruby,hpcloud/heroku-buildpack-ruby,daltonrenaldo/heroku-buildpack-ruby,bellycard/heroku-buildpack-ruby,ActiveState/heroku-buildpack-ruby,diasks2/heroku-buildpack-mecab,pkgr/buildpack-ruby-precise-old,samfrench/heroku-buildpack-ruby,jonasoberschweiber/heroku-buildpack-ruby,dleavitt/heroku-buildpack-ruby,amaltson/heroku-buildpack-ruby,CPPWind/ruby-buildpack,sanemat/heroku-buildpack-ruby-tachikoma,qstream/heroku-buildpack-ruby,codykrieger/heroku-buildpack-jekyll,wolfoo2931/heroku-buildpack-ruby-2a352ae,jumptvs/BP_Ruby,millie/heroku-buildpack-ruby-with-pdftk,jglascoe/heroku-buildpack-ruby-jekyll,engineyard/heroku-buildpack-ruby,righi/instacart-heroku-buildpack,bskyb-commerce/ruby-buildpack,takii/db2rubybuildpack,hpcloud/ruby-buildpack,leonardykris/mos-ruby-buildpack,meskyanichi/heroku-buildpack-middleman,mattmanning/heroku-buildpack-ruby-jekyll,lemurheavy/heroku-buildpack-ruby,ndbroadbent/heroku-buildpack-turbo-sprockets,pavgup/heroku-buildpack-ruby-lateslugignore,centresource/heroku-buildpack-turbo-sprockets-pmp-ffm,ekaranto/rails4-bluemix-buildpack,scottatron/moc-buildpack,takii/db2rubybuildpack,electricobjects/heroku-buildpack-ruby,lyoshenka/heroku-buildpack-ruby-jekyll,adaptivelab/heroku-buildpack-adaptivelab-website-2,Micka33/heroku-buildpack-ruby-liblua,travis-ci/heroku-buildpack-ruby,DyegoCosta/heroku-buildpack-ruby,ekaranto/rails4-bluemix-buildpack,tomwolfe/heroku-buildpack-gsl-ruby,CPPWind/ruby-buildpack,thirdprestige/heroku-buildpack-ruby,dlorson/gentle-buildpack,firmhouse/heroku-buildpack-ruby-freetds,Dim25/heroku-buildpack-ruby-GSL,lemurheavy/heroku-buildpack-ruby,hpcloud/heroku-buildpack-ruby,jayshreeanand/heroku-buildpack-ruby,instacart/heroku-buildpack-ruby,dlorson/gentle-buildpack,rowanoulton/heroku-buildpack-ruby,tenjikinc/heroku-buildpack-ruby,schu/buildpack-testing,firmhouse/heroku-buildpack-ruby-freetds,heroku/heroku-buildpack-ruby,ejholmes/heroku-buildpack-middleman,ilpoldo/heroku-buildpack-ruby,makifund/heroku-buildpack-ruby,ChefSteps/heroku-buildpack-ruby,hixi/heroku-buildpack-ruby,sky-uk/ruby-buildpack,hatofmonkeys/ruby-testing-buildpack,vhx/heroku-buildpack,tpope/heroku-buildpack-ruby-tpope,hausdorff/heroku-buildpack-ruby-jekyll,mperejda/heroku-buildpack-ruby,Jonty/ruby-buildpack,wolfoo2931/heroku-buildpack-ruby-2a352ae,dtao/deft-buildpack-ruby,DouglasAllen/heroku-buildpack-ruby,derrek/heroku-buildpack-ruby,brightbytes/heroku-buildpack-ruby-without-assets-precompile,schu/buildpack-testing,Altoros/ruby-buildpack,hatofmonkeys/ruby-testing-buildpack,redhotvengeance/heroku-buildpack-deep-thought,travis-ci/heroku-buildpack-ruby,jgarber/heroku-buildpack-ruby-octopress,fgbreel/heroku-buildpack-ruby,12spokes/heroku-buildpack-ruby-imagemagick,lyoshenka/heroku-buildpack-ruby-jekyll,icelab/heroku-buildpack-ruby,Nedomas/heroku-buildpack-ruby-minus-node-with-node-paths,fcruxen/ruby-buildpack,jayshreeanand/heroku-buildpack-ruby,mattwalters/heroku-buildpack-ruby,Nedomas/heroku-buildpack-ruby-minus-node-with-node-paths,recursecenter/heroku-buildpack-ruby,fcruxen/ruby-buildpack,anay/buildpack-ruby-with-oracle-jdk,mintybit/heroku-buildpack-ruby,zoomer/heroku-buildpack-ruby-bower,cloudn/buildpack-ruby,rvizza/heroku-buildpack-gsl-ruby,WilliamDenniss/heroku-buildpack-ruby-imagemagick,beydogan/ruby-buildpack,orenyk/heroku-buildpack-ruby,nicholasmott/heroku-buildpack-octopress,0x00evil/heroku-buildpack-ruby,qstream/heroku-buildpack-ruby,righi/instacart-heroku-buildpack,hatofmonkeys/ruby-testing-buildpack,space150/heroku-buildpack-ruby,instacart/heroku-buildpack-ruby,zunda/heroku-buildpack-ruby,jcamenisch/heroku-buildpack-rgeo,dieze/heroku-buildpack-ruby-hooks,vhx/heroku-buildpack,markaschneider/heroku-buildpack-ruby-ffmpeg-sox,cordata/heroku-buildpack-ruby,pcincalifornia/wdc-heroku-buildpack-middleman,KoanHealth/heroku-buildpack-marvin-setup,gbenedict/heroku-buildpack-ruby,amaltson/heroku-buildpack-ruby,cloudfoundry/ruby-buildpack,swipesense/heroku-buildpack-ruby,ChefSteps/heroku-buildpack-ruby,Numerico/heroku-buildpack-ruby,electricobjects/heroku-buildpack-ruby,diasks2/heroku-buildpack-mecab,musicglue/heroku-buildpack-ruby,rhomobile/heroku-buildpack-ruby,crdschurch/heroku-buildpack-ruby,ibmdb/db2rubybuildpack,dtao/teeny-buildpack,progrium/heroku-buildpack-ruby,donnykurnia/heroku-buildpack-ruby,adaptivelab/heroku-buildpack-adaptivelab-website-2,ericboehs/heroku-buildpack-ruby,rstacruz/heroku-buildpack-middleman,allomov/fat-free-heroku-buildpack-ruby,hpcloud/ruby-buildpack,aarongray/heroku-buildpack-ruby,shuber/heroku-buildpack-ruby,andycroll/heroku-buildpack-jekyll,moneyadviceservice/heroku-buildpack-ruby-bowndler,michaelphines/alexa-nest,thirdprestige/heroku-buildpack-ruby,icelab/heroku-buildpack-ruby,lemurheavy/heroku-buildpack-ruby