Hi,

r-cran-irkernel is currently blocked from entering testing:

https://tracker.debian.org/pkg/r-cran-irkernel

This is due to a problem in the toolchain which was fixed in the mean
time. The package is arch:all so we can't binNMU it. Could you please do
a no change upload to make it reproducible?

This would allow the package back into testing.

Thanks!

Jochen