Auto merge of #11374 - servo:no-microseconds, r=Ms2ger
Auto merge of #11374 - servo:no-microseconds, r=Ms2ger

Don’t include microsecons when reporting build times.

"0:03:40.817715" is harder to read and no more informative than "0:03:40"

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