New comment by ericonr on void-packages repository

https://github.com/void-linux/void-packages/issues/30420#issuecomment-824553477

Comment:
From https://build.voidlinux.org/builders/i686_builder/builds/32006/steps/shell_3/logs/stdio

```
=> Registering new packages to /host/binpkgs/multilib (x86_64)
index: failed to read props.plist metadata for `/host/binpkgs/multilib/libglapi-32bit-21.0.3_1.x86_64.xbps', skipping!
index: failed to read props.plist metadata for `/host/binpkgs/multilib/libgbm-32bit-21.0.3_1.x86_64.xbps', skipping!
index: failed to read props.plist metadata for `/host/binpkgs/multilib/libOSMesa-32bit-21.0.3_1.x86_64.xbps', skipping!
index: failed to read props.plist metadata for `/host/binpkgs/multilib/mesa-vulkan-radeon-32bit-21.0.3_1.x86_64.xbps', skipping!
index: failed to read props.plist metadata for `/host/binpkgs/multilib/mesa-ati-dri-32bit-21.0.3_1.x86_64.xbps', skipping!
index: failed to read props.plist metadata for `/host/binpkgs/multilib/mesa-vulkan-intel-32bit-21.0.3_1.x86_64.xbps', skipping!
index: failed to read props.plist metadata for `/host/binpkgs/multilib/mesa-intel-dri-32bit-21.0.3_1.x86_64.xbps', skipping!
index: failed to read props.plist metadata for `/host/binpkgs/multilib/mesa-nouveau-dri-32bit-21.0.3_1.x86_64.xbps', skipping!
index: failed to read props.plist metadata for `/host/binpkgs/multilib/libxatracker-32bit-21.0.3_1.x86_64.xbps', skipping!
index: added `MesaLib-devel-32bit-21.0.3_1' (x86_64).
index: added `mesa-32bit-21.0.3_1' (x86_64).
index: added `mesa-XvMC-32bit-21.0.3_1' (x86_64).
index: added `mesa-dri-32bit-21.0.3_1' (x86_64).
index: added `mesa-opencl-32bit-21.0.3_1' (x86_64).
index: added `mesa-vaapi-32bit-21.0.3_1' (x86_64).
index: added `mesa-vdpau-32bit-21.0.3_1' (x86_64).
index: added `mesa-vmwgfx-dri-32bit-21.0.3_1' (x86_64).
index: added `mesa-vulkan-overlay-layer-32bit-21.0.3_1' (x86_64).
```

Something went wrong in the builders, trying to figure it out.