Auto merge of #9601 - vishy1618:issue_9442, r=Wafflespeanut
Auto merge of #9601 - vishy1618:issue_9442, r=Wafflespeanut

Exit mach with an error when building on a path with spaces. Fixes #9442

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paulrouget/servo,avadacatavra/servo,rnestler/servo,rnestler/servo,thiagopnts/servo,ConnorGBrewster/servo,CJ8664/servo,canaltinova/servo,cbrewster/servo,splav/servo,splav/servo,cbrewster/servo,splav/servo,nnethercote/servo,rnestler/servo,KiChjang/servo,avadacatavra/servo,ConnorGBrewster/servo,fiji-flo/servo,thiagopnts/servo,canaltinova/servo,nnethercote/servo,dsandeephegde/servo,notriddle/servo,avadacatavra/servo,eddyb/servo,jimberlage/servo,DominoTree/servo,szeged/servo,DominoTree/servo,mbrubeck/servo,sadmansk/servo,anthgur/servo,larsbergstrom/servo,notriddle/servo,dati91/servo,larsbergstrom/servo,paulrouget/servo,upsuper/servo,nnethercote/servo,sadmansk/servo,jimberlage/servo,cbrewster/servo,steveklabnik/servo,CJ8664/servo,larsbergstrom/servo,CJ8664/servo,larsbergstrom/servo,steveklabnik/servo,ConnorGBrewster/servo,splav/servo,nnethercote/servo,mattnenterprise/servo,fiji-flo/servo,upsuper/servo,fiji-flo/servo,sadmansk/servo,jimberlage/servo,SimonSapin/servo,jimberlage/servo,rnestler/servo,szeged/servo,CJ8664/servo,pyfisch/servo,KiChjang/servo,KiChjang/servo,mattnenterprise/servo,ConnorGBrewster/servo,thiagopnts/servo,SimonSapin/servo,DominoTree/servo,paulrouget/servo,anthgur/servo,upsuper/servo,nnethercote/servo,larsbergstrom/servo,DominoTree/servo,mbrubeck/servo,anthgur/servo,saneyuki/servo,canaltinova/servo,notriddle/servo,sadmansk/servo,paulrouget/servo,cbrewster/servo,mattnenterprise/servo,rnestler/servo,peterjoel/servo,dsandeephegde/servo,szeged/servo,mattnenterprise/servo,eddyb/servo,DominoTree/servo,splav/servo,avadacatavra/servo,pyfisch/servo,sadmansk/servo,eddyb/servo,DominoTree/servo,szeged/servo,mattnenterprise/servo,dsandeephegde/servo,sadmansk/servo,szeged/servo,dati91/servo,KiChjang/servo,cbrewster/servo,pyfisch/servo,fiji-flo/servo,nrc/servo,szeged/servo,peterjoel/servo,dsandeephegde/servo,mbrubeck/servo,cbrewster/servo,jimberlage/servo,KiChjang/servo,splav/servo,upsuper/servo,notriddle/servo,SimonSapin/servo,anthgur/servo,mattnenterprise/servo,pyfisch/servo,dati91/servo,pyfisch/servo,mattnenterprise/servo,avadacatavra/servo,nrc/servo,eddyb/servo,thiagopnts/servo,SimonSapin/servo,pyfisch/servo,nnethercote/servo,CJ8664/servo,eddyb/servo,larsbergstrom/servo,nrc/servo,emilio/servo,cbrewster/servo,paulrouget/servo,KiChjang/servo,anthgur/servo,nnethercote/servo,splav/servo,rnestler/servo,dati91/servo,jimberlage/servo,splav/servo,larsbergstrom/servo,fiji-flo/servo,pyfisch/servo,upsuper/servo,peterjoel/servo,emilio/servo,notriddle/servo,larsbergstrom/servo,ConnorGBrewster/servo,avadacatavra/servo,mattnenterprise/servo,eddyb/servo,KiChjang/servo,dati91/servo,steveklabnik/servo,notriddle/servo,KiChjang/servo,emilio/servo,mbrubeck/servo,KiChjang/servo,dati91/servo,SimonSapin/servo,thiagopnts/servo,CJ8664/servo,thiagopnts/servo,notriddle/servo,upsuper/servo,SimonSapin/servo,saneyuki/servo,dati91/servo,CJ8664/servo,peterjoel/servo,canaltinova/servo,canaltinova/servo,dsandeephegde/servo,nnethercote/servo,steveklabnik/servo,fiji-flo/servo,peterjoel/servo,upsuper/servo,DominoTree/servo,emilio/servo,jimberlage/servo,avadacatavra/servo,emilio/servo,ConnorGBrewster/servo,anthgur/servo,anthgur/servo,saneyuki/servo,sadmansk/servo,peterjoel/servo,saneyuki/servo,dsandeephegde/servo,saneyuki/servo,DominoTree/servo,dsandeephegde/servo,steveklabnik/servo,pyfisch/servo,saneyuki/servo,nrc/servo,szeged/servo,emilio/servo,upsuper/servo,rnestler/servo,SimonSapin/servo,steveklabnik/servo,emilio/servo,thiagopnts/servo,KiChjang/servo,mbrubeck/servo,emilio/servo,szeged/servo,paulrouget/servo,avadacatavra/servo,larsbergstrom/servo,thiagopnts/servo,sadmansk/servo,splav/servo,paulrouget/servo,dati91/servo,jimberlage/servo,mbrubeck/servo,ConnorGBrewster/servo,canaltinova/servo,anthgur/servo,szeged/servo,SimonSapin/servo,larsbergstrom/servo,nnethercote/servo,peterjoel/servo,pyfisch/servo,canaltinova/servo,mbrubeck/servo,fiji-flo/servo,emilio/servo,peterjoel/servo,CJ8664/servo,rnestler/servo,saneyuki/servo,saneyuki/servo,emilio/servo,peterjoel/servo,eddyb/servo,fiji-flo/servo,steveklabnik/servo,paulrouget/servo,canaltinova/servo,saneyuki/servo,szeged/servo,cbrewster/servo,DominoTree/servo,saneyuki/servo,peterjoel/servo,nrc/servo,notriddle/servo,nnethercote/servo,splav/servo,nrc/servo,DominoTree/servo,dsandeephegde/servo,eddyb/servo,jimberlage/servo,ConnorGBrewster/servo,paulrouget/servo,notriddle/servo,mbrubeck/servo,pyfisch/servo,paulrouget/servo,notriddle/servo,nrc/servo