Hi, Using Guix 53f54d4, the package ’mysql’ is not reproducible: --8<---------------cut here---------------start------------->8--- $ diff -r --no-dereference /gnu/store/wm96qznqwrjangxf14blmsgzc9i4hmgl-mysql-5.7.33{,-check} diff -r --no-dereference /gnu/store/wm96qznqwrjangxf14blmsgzc9i4hmgl-mysql-5.7.33/share/mysql/docs/INFO_BIN /gnu/store/wm96qznqwrjangxf14blmsgzc9i4hmgl-mysql-5.7.33-check/share/mysql/docs/INFO_BIN 2c2 < Build was run at 2021-04-19 07:19:52 on host 'unknown' --- > Build was run at 2021-09-14 15:57:25 on host 'unknown' 4c4 < Build was done on Linux-5.10.16-gnu using x86_64 --- > Build was done on Linux-5.4.0-26-generic using x86_64 28c28 < DEB_CHANGELOG_TIMESTAMP:STRING=Mon, 19 Apr 2021 07:16:23 +0000 --- > DEB_CHANGELOG_TIMESTAMP:STRING=Tue, 14 Sep 2021 15:55:17 +0000 --8<---------------cut here---------------end--------------->8--- All the best, simon