erins-MacBook-Air $ rm -rf ~/altgo/pkg/ ~/altgo/bin/ && time ~/Downloads/go/bin/go install ./...

real	0m2.141s
user	0m4.395s
sys	0m0.777s
erins-MacBook-Air $ rm -rf ~/altgo/pkg/ ~/altgo/bin/ && time ~/Downloads/go/bin/go install ./...

real	0m2.138s
user	0m4.307s
sys	0m0.781s
erins-MacBook-Air $ rm -rf ~/altgo/pkg/ ~/altgo/bin/ && time go install ./...

real	0m3.272s
user	0m6.230s
sys	0m1.239s
erins-MacBook-Air $ rm -rf ~/altgo/pkg/ ~/altgo/bin/ && time go install ./...

real	0m2.552s
user	0m6.188s
sys	0m0.943s
erins-MacBook-Air $ rm -rf ~/altgo/pkg/ ~/altgo/bin/ && time go install ./...

real	0m2.560s
user	0m6.148s
sys	0m0.923s
erins-MacBook-Air $ rm -rf ~/altgo/pkg/ ~/altgo/bin/ && time ~/Downloads/go/bin/go install ./...

real	0m2.132s
user	0m4.390s
sys	0m0.801s
erins-MacBook-Air $ rm -rf ~/altgo/pkg/ ~/altgo/bin/ && time ~/Downloads/go/bin/go install ./...

real	0m2.075s
user	0m4.318s
sys	0m0.785s
erins-MacBook-Air $ rm -rf ~/altgo/pkg/ ~/altgo/bin/ && time ~/Downloads/go/bin/go install ./...

real	0m2.143s
user	0m4.350s
sys	0m0.777s
erins-MacBook-Air $ rm -rf ~/altgo/pkg/ ~/altgo/bin/ && time go install ./...

real	0m2.547s
user	0m6.071s
sys	0m0.934s
erins-MacBook-Air $ rm -rf ~/altgo/pkg/ ~/altgo/bin/ && time go install ./...

real	0m2.514s
user	0m6.057s
sys	0m0.924s