fix root cause for error message when running in multi-vm environment:
fix root cause for error message when running in multi-vm environment:

SSH Defaults:
* The following settings don't exist: forward_agent, forward_x11

pwnall/vagrant,h4ck3rm1k3/vagrant,kamigerami/vagrant,miguel250/vagrant,invernizzi-at-google/vagrant,gpkfr/vagrant,evverx/vagrant,cgvarela/vagrant,aneeshusa/vagrant,philwrenn/vagrant,bryson/vagrant,legal90/vagrant,Ninir/vagrant,apertoso/vagrant,clinstid/vagrant,marxarelli/vagrant,fnewberg/vagrant,bheuvel/vagrant,bheuvel/vagrant,mitchellh/vagrant,gajdaw/vagrant,bdwyertech/vagrant,genome21/vagrant,patrys/vagrant,chrisvire/vagrant,ferventcoder/vagrant,ianmiell/vagrant,chrisvire/vagrant,mwarren/vagrant,TheBigBear/vagrant,jberends/vagrant,dharmab/vagrant,pwnall/vagrant,bdwyertech/vagrant,lonniev/vagrant,jmanero/vagrant,p0deje/vagrant,nickryand/vagrant,Endika/vagrant,jkburges/vagrant,nickryand/vagrant,chrisvire/vagrant,bdwyertech/vagrant,dharmab/vagrant,jberends/vagrant,zsjohny/vagrant,doy/vagrant,sideci-sample/sideci-sample-vagrant,senglin/vagrant,carlosefr/vagrant,theist/vagrant,chrisroberts/vagrant,aaam/vagrant,teotihuacanada/vagrant,mwrock/vagrant,johntron/vagrant,tbriggs-curse/vagrant,stephancom/vagrant,modulexcite/vagrant,tknerr/vagrant,kamigerami/vagrant,jberends/vagrant,dustymabe/vagrant,signed8bit/vagrant,gajdaw/vagrant,lukebakken/vagrant,tknerr/vagrant,aneeshusa/vagrant,sni/vagrant,tschortsch/vagrant,denisbr/vagrant,kamazee/vagrant,legal90/vagrant,Chhed13/vagrant,taliesins/vagrant,Chhed13/vagrant,aneeshusa/vagrant,wangfakang/vagrant,chrisroberts/vagrant,mitchellh/vagrant,petems/vagrant,bshurts/vagrant,ianmiell/vagrant,mwrock/vagrant,tbriggs-curse/vagrant,senglin/vagrant,carlosefr/vagrant,bdwyertech/vagrant,p0deje/vagrant,Avira/vagrant,jtopper/vagrant,janek-warchol/vagrant,bryson/vagrant,tjanez/vagrant,kamazee/vagrant,theist/vagrant,darkn3rd/vagrant,shtouff/vagrant,pwnall/vagrant,Chhed13/vagrant,darkn3rd/vagrant,lonniev/vagrant,TheBigBear/vagrant,nickryand/vagrant,tschortsch/vagrant,petems/vagrant,sideci-sample/sideci-sample-vagrant,taliesins/vagrant,Chhed13/vagrant,tbarrongh/vagrant,wkolean/vagrant,senglin/vagrant,gajdaw/vagrant,MiLk/vagrant,lukebakken/vagrant,tjanez/vagrant,janek-warchol/vagrant,wangfakang/vagrant,philoserf/vagrant,sferik/vagrant,philwrenn/vagrant,teotihuacanada/vagrant,mkuzmin/vagrant,jhoblitt/vagrant,stephancom/vagrant,MiLk/vagrant,dharmab/vagrant,blueyed/vagrant,loren-osborn/vagrant,muhanadra/vagrant,benh57/vagrant,ferventcoder/vagrant,Avira/vagrant,denisbr/vagrant,aaam/vagrant,mwrock/vagrant,otagi/vagrant,sax/vagrant,rivy/vagrant,stephancom/vagrant,mpoeter/vagrant,modulexcite/vagrant,blueyed/vagrant,theist/vagrant,benizi/vagrant,rivy/vagrant,bryson/vagrant,tbarrongh/vagrant,ianmiell/vagrant,ArloL/vagrant,aneeshusa/vagrant,jfchevrette/vagrant,kamazee/vagrant,gpkfr/vagrant,mkuzmin/vagrant,jfchevrette/vagrant,PatOShea/vagrant,philwrenn/vagrant,stephancom/vagrant,kalabiyau/vagrant,loren-osborn/vagrant,tomfanning/vagrant,teotihuacanada/vagrant,tschortsch/vagrant,jkburges/vagrant,channui/vagrant,tjanez/vagrant,kamazee/vagrant,tbarrongh/vagrant,signed8bit/vagrant,carlosefr/vagrant,marxarelli/vagrant,mkuzmin/vagrant,mkuzmin/vagrant,sideci-sample/sideci-sample-vagrant,kalabiyau/vagrant,sax/vagrant,ArloL/vagrant,dhoer/vagrant,jean/vagrant,benh57/vagrant,bshurts/vagrant,h4ck3rm1k3/vagrant,mwarren/vagrant,lonniev/vagrant,jberends/vagrant,justincampbell/vagrant,channui/vagrant,gbarberi/vagrant,denisbr/vagrant,iNecas/vagrant,PatrickLang/vagrant,Ninir/vagrant,Sgoettschkes/vagrant,fnewberg/vagrant,carlosefr/vagrant,justincampbell/vagrant,signed8bit/vagrant,lukebakken/vagrant,benh57/vagrant,sax/vagrant,Chhunlong/vagrant,johntron/vagrant,Endika/vagrant,tbarrongh/vagrant,mpoeter/vagrant,Endika/vagrant,BlakeMesdag/vagrant,marxarelli/vagrant,PatOShea/vagrant,signed8bit/vagrant,pwnall/vagrant,blueyed/vagrant,patrys/vagrant,gbarberi/vagrant,cgvarela/vagrant,justincampbell/vagrant,benizi/vagrant,dhoer/vagrant,dhoer/vagrant,jmanero/vagrant,fnewberg/vagrant,gbarberi/vagrant,apertoso/vagrant,petems/vagrant,juiceinc/vagrant,h4ck3rm1k3/vagrant,jtopper/vagrant,p0deje/vagrant,mpoeter/vagrant,zsjohny/vagrant,tomfanning/vagrant,philwrenn/vagrant,ianmiell/vagrant,zsjohny/vagrant,dustymabe/vagrant,juiceinc/vagrant,Avira/vagrant,jean/vagrant,philoserf/vagrant,patrys/vagrant,shtouff/vagrant,marxarelli/vagrant,PatOShea/vagrant,teotihuacanada/vagrant,evverx/vagrant,legal90/vagrant,mwarren/vagrant,BlakeMesdag/vagrant,tbriggs-curse/vagrant,rivy/vagrant,krig/vagrant,ferventcoder/vagrant,wkolean/vagrant,krig/vagrant,janek-warchol/vagrant,TheBigBear/vagrant,doy/vagrant,krig/vagrant,aaam/vagrant,philoserf/vagrant,gitebra/vagrant,tbriggs-curse/vagrant,Sgoettschkes/vagrant,johntron/vagrant,muhanadra/vagrant,gpkfr/vagrant,wkolean/vagrant,otagi/vagrant,invernizzi-at-google/vagrant,jean/vagrant,crashlytics/vagrant,petems/vagrant,otagi/vagrant,clinstid/vagrant,Chhunlong/vagrant,Ninir/vagrant,modulexcite/vagrant,kalabiyau/vagrant,iNecas/vagrant,Sgoettschkes/vagrant,tknerr/vagrant,PatrickLang/vagrant,jean/vagrant,obnoxxx/vagrant,modulexcite/vagrant,nickryand/vagrant,senglin/vagrant,gpkfr/vagrant,darkn3rd/vagrant,mitchellh/vagrant,vamegh/vagrant,dharmab/vagrant,muhanadra/vagrant,denisbr/vagrant,ferventcoder/vagrant,myrjola/vagrant,jfchevrette/vagrant,jmanero/vagrant,sni/vagrant,PatOShea/vagrant,Avira/vagrant,obnoxxx/vagrant,taliesins/vagrant,kamigerami/vagrant,jhoblitt/vagrant,benizi/vagrant,clinstid/vagrant,jfchevrette/vagrant,miguel250/vagrant,ArloL/vagrant,muhanadra/vagrant,MiLk/vagrant,gitebra/vagrant,gbarberi/vagrant,legal90/vagrant,sni/vagrant,loren-osborn/vagrant,genome21/vagrant,benh57/vagrant,tomfanning/vagrant,wkolean/vagrant,genome21/vagrant,jhoblitt/vagrant,wangfakang/vagrant,vamegh/vagrant,dustymabe/vagrant,otagi/vagrant,BlakeMesdag/vagrant,Chhunlong/vagrant,h4ck3rm1k3/vagrant,ArloL/vagrant,tjanez/vagrant,dustymabe/vagrant,myrjola/vagrant,myrjola/vagrant,evverx/vagrant,obnoxxx/vagrant,krig/vagrant,bryson/vagrant,kamigerami/vagrant,kalabiyau/vagrant,shtouff/vagrant,lonniev/vagrant,doy/vagrant,PatrickLang/vagrant,tknerr/vagrant,rivy/vagrant,gitebra/vagrant,chrisvire/vagrant,gitebra/vagrant,chrisroberts/vagrant,invernizzi-at-google/vagrant,sni/vagrant,mwrock/vagrant,fnewberg/vagrant,johntron/vagrant,juiceinc/vagrant,crashlytics/vagrant,Sgoettschkes/vagrant,doy/vagrant,vamegh/vagrant,tschortsch/vagrant,mitchellh/vagrant,crashlytics/vagrant,darkn3rd/vagrant,crashlytics/vagrant,sax/vagrant,taliesins/vagrant,blueyed/vagrant,theist/vagrant,Chhunlong/vagrant,jtopper/vagrant,dhoer/vagrant,shtouff/vagrant,tomfanning/vagrant,juiceinc/vagrant,iNecas/vagrant,aaam/vagrant,benizi/vagrant,TheBigBear/vagrant,justincampbell/vagrant,mwarren/vagrant,apertoso/vagrant,lukebakken/vagrant,jkburges/vagrant,genome21/vagrant,loren-osborn/vagrant,apertoso/vagrant,janek-warchol/vagrant,bheuvel/vagrant,miguel250/vagrant,bshurts/vagrant,sferik/vagrant,jhoblitt/vagrant,channui/vagrant,bheuvel/vagrant,Endika/vagrant,philoserf/vagrant,wangfakang/vagrant,myrjola/vagrant,patrys/vagrant,jmanero/vagrant,miguel250/vagrant,invernizzi-at-google/vagrant,vamegh/vagrant,jkburges/vagrant,cgvarela/vagrant,chrisroberts/vagrant,jtopper/vagrant,mpoeter/vagrant,bshurts/vagrant,PatrickLang/vagrant,cgvarela/vagrant,sferik/vagrant,zsjohny/vagrant