Somente evitar a cópia de arquivos não melhora muito as coisas, mas porque ele usou o cache para esse passo, ele pode **usar o cache para o próximo passo**. Por exemplo, ele pode usar o cache para a instrução que instala as dependências com:

taobao

// target : 2015-07-31 Target Domain Holdings, LLC
target

// tatamotors : 2015-03-12 Tata Motors Ltd
tatamotors

// tatar : 2014-04-24 Limited Liability Company "Coordination Center of Regional Domain of Tatarstan Republic"
tatar

// tattoo : 2013-08-30 Top Level Design, LLC
tattoo

// tax : 2014-03-20 Binky Moon, LLC
tax

// taxi : 2015-03-19 Binky Moon, LLC

tanabe.wakayama.jp tanagura.fukushima.jp tananger.no tank.museum tanohata.iwate.jp taobao tara.saga.jp tarama.okinawa.jp taranto.it target targi.pl tarnobrzeg.pl tarui.gifu.jp tarumizu.kagoshima.jp tas.au tas.edu.au tas.gov.au tashkent.su tatamotors tatar tatebayashi.gunma.jp tateshina.nagano.jp tateyama.chiba.jp tateyama.toyama.jp tatsuno.hyogo.jp tatsuno.nagano.jp tattoo tawaramoto.nara.jp tax taxi taxi.br tc tc.br tci tcm.museum tcp4.me td tdk te.it te.ua teaches-yoga.com team tec.br tec.mi.us tec.ve...

[d.], dddd, HH:mm [val.]",l:"YYYY-MM-DD",ll:"YYYY [m.] MMMM D [d.]",lll:"YYYY [m.] MMMM D [d.], HH:mm [val.]",llll:"YYYY [m.] MMMM D [d.], ddd, HH:mm [val.]"},calendar:{sameDay:"[\u0160iandien] LT",nextDay:"[Rytoj] LT",nextWeek:"dddd LT",lastDay:"[Vakar] LT",lastWeek:"[Pra\u0117jus\u012f] dddd LT",sameElse:"L"},relativeTime:{future:"po %s",past:"prie\u0161 %s",s:function(e,a,t,s){return a?"kelios sekund\u0117s":s?"keli\u0173 sekund\u017ei\u0173":"kelias sekundes"},ss:dn,m:tn,mm:dn,h:tn,hh:dn,d:tn...