When I run `guix challenge` it shows that these versions of mesa are not reproducible. ``` /gnu/store/2lyzzw7ybsm3s2n7fgqm17n33n62dl7c-mesa-20.2.4 /gnu/store/k72zqqiysk3qcwqj917hmlbvqs8shj0x-mesa-20.2.4 ``` This looks like it could also be related to bug#43849. `guix describe` outputs: ``` Generation 24 May 12 2021 18:06:24 (current) guix d6aeebb repository URL: https://git.savannah.gnu.org/git/guix.git branch: master commit: d6aeebb23639258311fdfb9dbf5f903079fde51a ``` `guix challenge mesa` outputs: ``` /gnu/store/9624kmpsr9mcx0qb1zvbk5hpxymgk0s4-mesa-20.2.4 contents differ: local hash: 0ca468jgq1sgw0llsjrmk1jjny08ndhs4634yp9m9aajr4p0g8q1 https://ci.guix.gnu.org/nar/lzip/9624kmpsr9mcx0qb1zvbk5hpxymgk0s4-mesa-20.2.4: 1kp0l03bdinmnzkn2xqyrl6gymzy9qrh5kbq2i8fbgxb0c1j54m7 differing files: /lib/dri/iris_dri.so /lib/dri/nouveau_drv_video.so /lib/vdpau/libvdpau_nouveau.so.1.0.0 /lib/libXvMCnouveau.so.1.0.0 /lib/libOSMesa.so.8.0.0 /lib/libvulkan_radeon.so /lib/libxatracker.so.2.5.0 1 store items were analyzed: - 0 (0.0%) were identical - 1 (100.0%) differed - 0 (0.0%) were inconclusive ``` Attached is the diffoscope output.