(address . bug-guix@gnu.org)
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.