% docker run -t -i ubuntu /bin/bash
# apt-get install -y pbuilder
... succeess ...
# pbuilder create
W: //.pbuilderrc does not exist
I: Distribution is precise.
I: Building the build environment
I: running debootstrap
/usr/sbin/debootstrap
mknod: `/var/cache/pbuilder/build/15008/./test-dev-null': Operation not permitted
E: Cannot install into target '/var/cache/pbuilder/build/15008/.' mounted with noexec or nodev
E: debootstrap failed
W: Aborting with an error
I: cleaning the build env 
I: removing directory /var/cache/pbuilder/build//15008 and its subdirectories