[lxc-users] How about think to make build environment to use lxc?

[Gyeongmin Kim]

Dear, All

Have been using kvm or qemu to create build environment in my build system
However, It's slow performance of the kvm or qemu
So, Considering changing to lxc for to create the build environment

But, build in opensuse (
http://www.rpmfind.net//linux/RPM/opensuse/factory/armv7hl/noarch/build-20150317-1.1.noarch.html)
said that 'This may be not 100% safe'

$ build --help
...
    --lxc
              Use Linux Containers to isolate the process. This may not be
100% safe.
...

Of course, guaranteed to be 100% safe be vary hard
Why not safe for any reason to build environment  ( including cross
compilation) ?
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