recipe does not build: make: Cannot open: Permission denied

Please provide a link to the build, not the build log, as the build log does not link back to the build.

I'm seeing this too:

https://launchpad.net/~brightbox/+archive/ruby-ng-experimental/+recipebuild/167241

https://bugs.launchpad.net/launchpad/+bug/921213

 dpkg-source -i -I -b recipe-{debupstream}-0~{revno}
dpkg-source: info: using source format `3.0 (native)'
dpkg-source: info: building ruby1.8 in ruby1.8_1.8.7.352-0~33~lucid1.tar.gz
tar: recipe-{debupstream}-0~{revno}/.pc/120130_ruby_ee.patch/marktable.h: Cannot open: Permission denied
tar: recipe-{debupstream}-0~{revno}/.pc/120130_ruby_ee.patch/marktable.c: Cannot open: Permission denied
tar: recipe-{debupstream}-0~{revno}/.pc/120130_ruby_ee.patch/system_allocator.c: Cannot open: Permission denied
tar: recipe-{debupstream}-0~{revno}/.pc/120130_ruby_ee.patch/test/rational/test_fixnum_gcd.rb: Cannot open: Permission denied
tar: recipe-{debupstream}-0~{revno}/.pc/120130_ruby_ee.patch/test/rational/test_rational2.rb: Cannot open: Permission denied
tar: recipe-{debupstream}-0~{revno}/.pc/120130_ruby_ee.patch/test/rational/test_rational.rb: Cannot open: Permission denied
tar: recipe-{debupstream}-0~{revno}/.pc/120130_ruby_ee.patch/test/callerforallthreads/test_caller_for_each_thread.rb: Cannot open: Permission denied
tar: recipe-{debupstream}-0~{revno}/.pc/120130_ruby_ee.patch/pointerset.c: Cannot open: Permission denied
tar: recipe-{debupstream}-0~{revno}/.pc/120130_ruby_ee.patch/fastmarktable.c: Cannot open: Permission denied
tar: recipe-{debupstream}-0~{revno}/.pc/120130_ruby_ee.patch/pointerset.h: Cannot open: Permission denied
tar: recipe-{debupstream}-0~{revno}/.pc/120130_ruby_ee.patch/ext/rational/lib/rational.rb: Cannot open: Permission denied
tar: recipe-{debupstream}-0~{revno}/.pc/120130_ruby_ee.patch/ext/rational/rational.c: Cannot open: Permission denied
tar: recipe-{debupstream}-0~{revno}/.pc/120130_ruby_ee.patch/ext/rational/extconf.rb: Cannot open: Permission denied
tar: Exiting with failure status due to previous errors
dpkg-source: error: tar -cf - gave error exit status 2
dpkg-buildpackage: error: dpkg-source -i -I -b recipe-{debupstream}-0~{revno} gave error exit status 29

I'll dupe this against an earlier bug for the same issue. And re-open that bug since it had been closed, assuming this issue fixed.