Dear Maintainer, I'm able to reproduce the failure with python3-pil/11.1.0-4 from snapshot.debian.org but not with python3-pil/11.1.0-5 currently in Sid. reproducible-builds confirms that your package builds fine ATM [1]
Kind Regards [1] https://tests.reproducible-builds.org/debian/rb-pkg/unstable/amd64/blockdiag.html
