call SetupDirectories after uids are mapped in the user namespace
call SetupDirectories after uids are mapped in the user namespace

fixes #1637 (https://github.com/bazelbuild/bazel/issues/1637)

--
Change-Id: I8b8c3596fd2a4c125071406eefd407ca402099dd
Reviewed-on: https://bazel-review.git.corp.google.com/#/c/5410/2
MOS_MIGRATED_REVID=130633667

LuminateWireless/bazel,ulfjack/bazel,iamthearm/bazel,iamthearm/bazel,katre/bazel,snnn/bazel,davidzchen/bazel,davidzchen/bazel,ulfjack/bazel,Asana/bazel,katre/bazel,iamthearm/bazel,aehlig/bazel,aehlig/bazel,ButterflyNetwork/bazel,kchodorow/bazel,spxtr/bazel,zhexuany/bazel,twitter-forks/bazel,mbrukman/bazel,twitter-forks/bazel,bazelbuild/bazel,meteorcloudy/bazel,kchodorow/bazel-1,perezd/bazel,bazelbuild/bazel,ButterflyNetwork/bazel,bazelbuild/bazel,Asana/bazel,zhexuany/bazel,variac/bazel,Asana/bazel,damienmg/bazel,LuminateWireless/bazel,mbrukman/bazel,hermione521/bazel,mrdomino/bazel,LuminateWireless/bazel,meteorcloudy/bazel,damienmg/bazel,safarmer/bazel,dropbox/bazel,dropbox/bazel,perezd/bazel,dslomov/bazel-windows,damienmg/bazel,kchodorow/bazel,mbrukman/bazel,snnn/bazel,LuminateWireless/bazel,dropbox/bazel,mikelikespie/bazel,kchodorow/bazel,mrdomino/bazel,mrdomino/bazel,variac/bazel,bazelbuild/bazel,Asana/bazel,aehlig/bazel,kchodorow/bazel-1,akira-baruah/bazel,damienmg/bazel,cushon/bazel,zhexuany/bazel,dropbox/bazel,mikelikespie/bazel,ulfjack/bazel,mikelikespie/bazel,hermione521/bazel,dslomov/bazel,akira-baruah/bazel,dslomov/bazel,Asana/bazel,mikelikespie/bazel,werkt/bazel,ButterflyNetwork/bazel,katre/bazel,meteorcloudy/bazel,cushon/bazel,snnn/bazel,mrdomino/bazel,akira-baruah/bazel,katre/bazel,iamthearm/bazel,aehlig/bazel,davidzchen/bazel,meteorcloudy/bazel,dslomov/bazel,davidzchen/bazel,juhalindfors/bazel-patches,bazelbuild/bazel,damienmg/bazel,davidzchen/bazel,dropbox/bazel,werkt/bazel,perezd/bazel,spxtr/bazel,dslomov/bazel-windows,dslomov/bazel-windows,meteorcloudy/bazel,zhexuany/bazel,dslomov/bazel,ulfjack/bazel,juhalindfors/bazel-patches,werkt/bazel,safarmer/bazel,dslomov/bazel-windows,mbrukman/bazel,Asana/bazel,kchodorow/bazel-1,cushon/bazel,variac/bazel,iamthearm/bazel,juhalindfors/bazel-patches,dslomov/bazel-windows,damienmg/bazel,meteorcloudy/bazel,twitter-forks/bazel,hermione521/bazel,ulfjack/bazel,ulfjack/bazel,mrdomino/bazel,ButterflyNetwork/bazel,snnn/bazel,kchodorow/bazel,davidzchen/bazel,juhalindfors/bazel-patches,hermione521/bazel,variac/bazel,juhalindfors/bazel-patches,dropbox/bazel,safarmer/bazel,twitter-forks/bazel,hermione521/bazel,ulfjack/bazel,snnn/bazel,akira-baruah/bazel,snnn/bazel,twitter-forks/bazel,perezd/bazel,werkt/bazel,safarmer/bazel,werkt/bazel,dslomov/bazel,spxtr/bazel,twitter-forks/bazel,spxtr/bazel,snnn/bazel,mikelikespie/bazel,spxtr/bazel,davidzchen/bazel,aehlig/bazel,mikelikespie/bazel,perezd/bazel,zhexuany/bazel,meteorcloudy/bazel,bazelbuild/bazel,dslomov/bazel,katre/bazel,dslomov/bazel,ButterflyNetwork/bazel,iamthearm/bazel,twitter-forks/bazel,spxtr/bazel,cushon/bazel,variac/bazel,kchodorow/bazel,Asana/bazel,ButterflyNetwork/bazel,variac/bazel,juhalindfors/bazel-patches,cushon/bazel,mbrukman/bazel,akira-baruah/bazel,perezd/bazel,kchodorow/bazel-1,werkt/bazel,katre/bazel,kchodorow/bazel-1,kchodorow/bazel,aehlig/bazel,akira-baruah/bazel,damienmg/bazel,variac/bazel,LuminateWireless/bazel,mrdomino/bazel,dslomov/bazel-windows,hermione521/bazel,juhalindfors/bazel-patches,perezd/bazel,safarmer/bazel,zhexuany/bazel,cushon/bazel,kchodorow/bazel,mbrukman/bazel,safarmer/bazel,aehlig/bazel,LuminateWireless/bazel,spxtr/bazel,kchodorow/bazel-1