xz/xz-5.6.1-1-x86_64.pkg.tar.zst build reproducible in our test framework:
7dc8fc5b9e0da28d475ec8b73a050db39694500f73eda31fd8e2630028c8f73e xz-5.6.1-1-x86_64.pkg.tar.zst
842b3595c2e9cf8da535f6bc92a1a8ab7a5fefc1866ec51384995f17a1a7d24d xz-5.6.1-1-x86_64.pkg.tar.zst-b1.BUILDINFO.txt
842b3595c2e9cf8da535f6bc92a1a8ab7a5fefc1866ec51384995f17a1a7d24d xz-5.6.1-1-x86_64.pkg.tar.zst-b2.BUILDINFO.txt