Bug#635882: Cannot create base.tgz on Sid

[Aron Xu]

Package: pbuilder
Severity: important
Version: 0.200

While running pbuilder on Sid, I get the following result:
[...]
I: Base system installed successfully.
I: debootstrap finished
I: copying local configuration
I: Installing apt-lines
I: Refreshing the base.tgz
I: upgrading packages
I: mounting /proc filesystem
mount: /proc already mounted or /var/cache/pbuilder/build//1947/proc busy
mount: according to mtab, /proc is mounted on /proc
W: Aborting with an error
I: cleaning the build env
I: removing directory /var/cache/pbuilder/build//1947 and its subdirectories
rmdir: failed to remove `/var/cache/pbuilder/build//1947/proc': Device
or resource busy
rmdir: failed to remove `/var/cache/pbuilder/build//1947': Directory not empty


The mirror I was using is http://ftp.cn.debian.org/debian and
http://ftp6.sjtu.edu.cn/debian, the latter sync from
ftp.tw.debian.org. My system is up-to-date Sid today.

-- 
Regards,
Aron Xu