upx/upx-4.2.2-1-x86_64.pkg.tar.zst build reproducible in our test framework:
f7e000f8e998cab9e1871732edf47de22596abc7285179f30c3fb2276dbeb61b upx-4.2.2-1-x86_64.pkg.tar.zst
702860d3b13ff658e83fcda17c0d1726ad5bb460da5b510972be1c1b438c6eb2 upx-4.2.2-1-x86_64.pkg.tar.zst-b1.BUILDINFO.txt
702860d3b13ff658e83fcda17c0d1726ad5bb460da5b510972be1c1b438c6eb2 upx-4.2.2-1-x86_64.pkg.tar.zst-b2.BUILDINFO.txt